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Sample records for cleaning quarterly technical

  1. Appalachian Clean Coal Technology Consortium. Quarterly technical progress report, 1996

    SciTech Connect

    Yoon, R.-H.; Phillips, D.I.; Luttrell, G.H.; Basim, B.; Sohn, S.; Jiang, X.; Tao, D.; Parekh, B.K.; Meloy, T.

    1996-10-01

    The Appalachian Clean Coal Technology Consortium (ACCTC) has been established to help U.S. Coal producers, particularly those in the Appalachian region, increase the production of lower-sulfur coal. The cooperative research conducted as part of the consortium activities will help utilities meet the emissions standards established by the 1990 Clean Air Act Amendments, enhance the competitiveness of U.S. coals in the world market, create jobs in economically-depressed coal producing regions, and reduce U.S. dependence on foreign energy supplies. The consortium has three charter members, including Virginia Polytechnic Institute and State University, West Virginia University, and the University of Kentucky. The Consortium also includes industry affiliate members that form an Advisory Committee. In keeping with the recommendations of the Advisory Committee, first-year R&D activities were focused on two areas of research: fine coal dewatering and modeling of spirals. The industry representatives to the Consortium identified fine coal dewatering as the most needed area of technology development. Dewatering studies were conducted by Virginia Tech`s Center for Coal and Minerals Processing and a spiral model was developed by West Virginia University. For the University of Kentucky the advisory board approved a project entitled: ``A Study of Novel Approaches for Destabilization of Flotation Froth``. Project management and administration will be provided by Virginia Tech., for the first year. Progress reports for coal dewatering and destabilization of flotation froth studies are presented in this report.

  2. Appalachian Clean Coal Technology Consortium. Quarterly technical progress report, 1996

    SciTech Connect

    Yoon, R.-H.; Phillips, D.I.; Luttrell, G.H.; Basim, B.; Sohn, S.

    1996-07-01

    The Appalachian Clean Coal Technology Consortium (ACCTC) has been established to help U.S. Coal producers, particularly those in the Appalachian region, increase the production of lower-sulfur coal. The consortium has three charter members, including Virginia Polytechnic Institute and State University, West Virginia University, and the University of Kentucky. The Consortium also includes industry affiliate members that form an Advisory Committee. In keeping with the recommendations of the Advisory Committee, first-year R&D activities are focused on two areas of research: fine coal dewatering and modeling of spirals. The industry representatives to the Consortium identified fine coal dewatering as the most needed area of technology development. Dewatering studies will be conducted by Virginia Tech`s Center for Coal and Minerals Processing. A spiral model is developed by West Virginia University. The research to be performed by the University of Kentucky has recently been determined to be: ``A Study of Novel Approaches for Destabilization of Flotation Froth``. Acoomplishments to date are reported.

  3. Dewatering studies of fine clean coal. [Quarterly] technical report, December 1, 1991--February 29, 1992

    SciTech Connect

    Parekh, B.K.

    1992-08-01

    Physical cleaning of ultra-fine coal using an advanced froth flotation techniques provides a low ash product, however, due to high surface area of particles the amount of water associated with clean coal is high. Economic removal of water from the froth will be important for commercial applicability of advanced froth flotation processes. The main objective of the present research program is to study and understand the dewatering characteristics of ultra-fine clean coal and to develop process parameters to effectively reduce the moisture to less than 20 percent in the clean coal product. The research approach under investigation utilizes synergistic effects of metal ions and surfactant to lower the moisture of clean coal using a conventional vacuum dewatering technique. The studies have identified a combination of metal ion and surfactant found to be effective in providing a 22 percent moisture filter cake.

  4. Advanced physical coal cleaning to comply with potential air toxic regulations. [Quarterly] technical report, September 1--November 30, 1994

    SciTech Connect

    Honaker, R.Q.; Paul, B.C.; Wang, D.

    1994-12-31

    This research project will investigate the use of advanced fine coal cleaning technologies for cleaning PCB feed as a compliance strategy. Trace elements considered in this project will include mercury, selenium, cadmium, and chlorine. Work in the first quarter has focused on trace element analysis procedures and sample acquisition. Several experts in the field of trace element analysis of coal have been consulted and these procedures are presently being evaluated.

  5. Engineering development of advanced physical fine coal cleaning technologies: Froth flotation. Quarterly technical progress report No. 15, April 1, 1992--June 30, 1992

    SciTech Connect

    Not Available

    1993-02-12

    The Department of Energy (DOE) awarded a contract entitled ``Engineering Development of Advanced Physical Fine Coal Cleaning Technology - Froth Flotation``, to ICF Kaiser Engineers with the following team members, Ohio Coal Development Office, Babcock and Wilcox, Consolidation Coal Company, Eimco Process Equipment Company, Illinois State Geological Survey, Virginia Polytechnic Institute and State University, Process Technology, Inc. This document a quarterly report prepared in accordance with the project reporting requirements covering the period from July 1, 1992 to September 30, 1992. This report provides a summary of the technical work undertaken during this period, highlighting the major results. A brief description of the work done prior to this quarter is provided in this report under the task headings.

  6. Engineering development of advanced physical fine coal cleaning for premium fuel applications. Quarterly technical progress report No. 3, April--June 1993

    SciTech Connect

    Smit, F.J.; Hogsett, R.F.; Jha, M.C.

    1993-07-28

    This project is a major step in the Department of Energy`s program to show that ultra-clean coal-water slurry fuel (CWF) can be produced from selected coals and that this premium fuel will be a cost-effective replacement for oil and natural gas now fueling some of the industrial and utility boilers in the United States. The replacement of oil and gas with CWF can only be realized if retrofit costs are kept to a minimum and retrofit boiler emissions meet national goals for clean air. These concerns establish the specifications for maximum ash and sulfur levels and combustion properties of the CWF. This cost-share contract is a 48-month program which started on September 30, 1992. This report discusses the technical progress made during the quarter from April 1 to June 30, 1993. The project has three major objectives: (1) the primary objective is to develop the design base for prototype commercial advanced fine coal cleaning facilities capable of producing ultra-clean coals suitable for conversion to coal-water slurry fuel for premium fuel applications. The fine coal cleaning technologies are advanced column flotation and selective agglomeration. (2) a secondary objective is to develop the design base for near-term application of these advanced fine coal cleaning technologies in new or existing coal preparation plants for efficiently processing minus 28-mesh coal fines and converting this to marketable products in current market economics; and (3) a third objective is to determine the removal of toxic trace elements from coal by advance column flotation and selective agglomeration technologies.

  7. Engineering development of advanced physical fine coal cleaning for premium fuel applications. Quarterly technical progress report No. 6, January--March 1994

    SciTech Connect

    Smit, F.J.; Rowe, R.M.; Anast, K.R.; Jha, M.C.

    1994-05-06

    This project is a major step in the Department of Energy`s program to show that ultra-clean coal-water slurry fuel (CWF) can be produced from selected coals and that this premium fuel will be a cost-effectve replacement for oil and natural gas now fueling some of the industrial and utility boilers in the United States as well as for advanced combustars currently under development. The replacement of oil and gas with CWF can only be realized if retrofit costs are kept to a minimum and retrofit boiler emissions meet national goals fbr clean air. These concerns establish the specifications for maximum ash and sulfur levels and combustion properties of the CWF. This cost-share contract is a 51-month program which started on September 30, 1992. This report discusses the technical progress, made during the 6th quarter of the project from January 1 to March 31, 1994. The project has three major objectives: (1) The primary objective is to develop the design base for prototype commercial advanced fine coal cleaning facilities capable of producing ultra-clean coals suitable for conversion to coal-water slurry fuel for premium fuel applications. The fine coal cleaning technologies are advanced column flotation and selective agglomeration. (2) A secondary objective is to develop the design base for near-term application of these advanced fine coal cleaning technologies in new or existing coal preparation plants for efficiently processing minus 28-mesh coal fines and converting this to marketable products in current market economics. (3) A third objective is to determine the removal of toxic trace elements from coal by advance column flotation and selective agglomeration technologies.

  8. Engineering development of advanced physical fine coal cleaning technologies: Froth flotation. Quarterly technical progress report No. 26, January 1, 1995--March 31, 1995

    SciTech Connect

    1995-07-01

    A study conducted by Pittsburgh Energy Technology Center of sulfur emissions from about 1,300 United States coal-fired utility boilers indicated that half of the emissions were the result of burning coals having greater than 1.2 pounds of SO{sub 2} per million BTU. This was mainly attributed to the high pyritic sulfur content of the boiler fuel. A significant reduction in SO{sub 2} emissions could be accomplished by removing the pyrite from the coals by advanced physical fine coal cleaning. An engineering development project was prepared to build upon the basic research effort conducted under a solicitation for research into Fine Coal Surface Control. The engineering development project is intended to use general plant design knowledge and conceptualize a plant to utilize advanced froth flotation technology to process coal and produce a product having maximum practical pyritic sulfur reduction consistent with maximum practical BTU recovery. The overall project scope of the engineering development project is to conceptually develop a commercial flowsheet to maximize pyritic sulfur reduction at practical energy recovery values. This is being accomplished by utilizing the basic research data on the surface properties of coal, mineral matter and pyrite obtained from the Coal Surface Control for Advanced Fine Coal Flotation Project, to develop this conceptual flowsheet. This progress report provides a summary of the technical work undertaken during this period, highlighting the major results. A brief description of the work done prior to this quarter is provided in this report under the task headings.

  9. Engineering development of advanced physical fine coal cleaning technologies: Froth flotation. Quarterly technical progress report No. 25, October 1, 1994--December 31, 1994

    SciTech Connect

    1994-12-31

    A study conducted by Pittsburgh Energy Technology Center of sulfur emissions from about 1300 United States coal-fired utility boilers indicated that half of the emissions were the result of burning coals having greater than 1.2 pounds of SO{sub 2} per million BTU. This was mainly attributed to the high pyritic sulfur content of the boiler fuel. A significant reduction in SO{sub 2} emissions could be accomplished by removing the pyrite from the coals by advanced physical fine coal cleaning. An engineering development project was prepared to build upon the basic research effort conducted under a solicitation for research into Fine Coal Surface Control. The engineering development project is intended to use general plant design knowledge and conceptualize a plant to utilize advanced froth flotation technology to process coal and produce a product having maximum practical pyritic sulfur reduction consistent with maximum practical BTU recovery. This progress report provides a summary of the technical work undertaken during this period, highlighting the major results. A brief description of the work done prior to this quarter is provided in this report under the task headings.

  10. Clean, premium-quality chars: Demineralized and carbon enriched. [Quarterly] technical report, March 1, 1993--May 31, 1993

    SciTech Connect

    Smith, G.V.; Malhotra, V.M.; Wiltowski, T.; Myszka, E.

    1993-09-01

    The overall objective of this two-year project is to evaluate methods of preparing demineralized and carbon enriched chars from Illinois Basin coals. There are two processing steps: physical cleaning of the coal and devolatilization under different environments to form chars. Two differents techniques were used, in-situ Diffuse Reflectance FTIR measurements and BTU measurements. Experiments were performed with coals IBC-101, 102, and 104 as received and after cleaning. DR-FTIR spectrums helped to explain the possible existing chemical bonds in the coal structure as well as their changes during drying and mild pyrolysis. Drying coal causes hydrogen bonds between water and coal to be broken. Liquids produced above 500{degrees}C are much higher in aromatic content, thus, effectively reducing the concentration of aliphatic groups in the overall liquid yield. BTU values of coals after methane treatment are higher than after helium treatment.

  11. POC-scale testing of a dry triboelectrostatic separator for fine coal cleaning. Quarterly technical progress report, 1996

    SciTech Connect

    Yoon, R.-H.; Yan, E.S.; Luttrell, G.H.; Adel, G.T.

    1996-12-31

    The Pittsburgh Energy Technology Center (PETC) developed a triboelectrostatic separation (TES) process which is capable of removing mineral matter from coal without using water. A distinct advantage of this dry coal cleaning process is that it does not entail costly steps of dewatering which is a common problem associated with conventional fine coal cleaning processes. It is the objective of this project to conduct a series of proof-of-concept (POC) scale tests at a throughput of 200-250 kg/hr and obtain scale-up information. Prior to the POC testing, bench-scale test work will be conducted with the objective of increasing the separation efficiency and throughput, for which changes in the basic designs for the charger and the separator may be necessary. The bench- and POC-scale test work will be carried out to evaluate various operating parameters and establish a reliable scale-up procedure. The scale-up data will be used to analyze the economic merits of the TES process. At present, the project is at the stage of engineering design (Task 3). Work accomplished during this reporting period are summarized as follows: (i) An on-line tribocharge analyzer has been developed to study triboelectrification. (ii) The effects of aeration rate, feed rate and particle size on the tribocbarging mechanisms using the on-line tribocharge analyzer. (iii) A continuous bench-scale tnboelectrostatic separator has been constructed. (iv) Shakedown testing of the bench-scale triboelectrostatic separator is on-going.

  12. Micro-agglomerate flotation for deep cleaning of coal. Quarterly technical progress report, April 1, 1995--June 30, 1995

    SciTech Connect

    Chander, S.; Hogg, R.

    1995-07-01

    The development, of practical technologies for the deep cleaning of coal has been seriously hampered by the problems of carrying out efficient coal/mineral separations at the very fine sizes (often finer than 10 mm) needed to achieve adequate liberation of the mineral matter from the coal matrix. In froth flotation, selectivity is substantially reduced at fine sizes due, primarily, to overloading of the froth phase which leads to excessive carryover of water and entrained mineral matter. Oil agglomeration, on the other hand, can provide good selectivity at low levels of oil addition but the agglomerates tend to be too fragile for separation by the screening methods normally used. This project is concerned with a hydrid process, micro-agglomerate flotation, which is a combination of oil agglomeration and froth flotation.

  13. Integrated methods for production of clean char and its combustion properties. [Quarterly] technical report, March 1, 1993--May 31, 1993

    SciTech Connect

    DeBarr, J.A.; Rostam-Abadi, M.; Gullett, B.K.; Benson, S.A.

    1993-09-01

    An integrated method consisting of physical coal cleaning, mild gasification (MG) and low temperature oxidation (LTO) is proposed to produce chars with SO{sub 2} emissions at least 50% lower than those of their parent coals. MG and char desulfurization studies are conducted in both a batch fluidized-bed reactor (FBR) and in a continuous rotary tube kiln (RTK). Combustion properties and ash deposition behaviors of desulfurized chars are determined at the US EPA in a 14 kill pilotscale combustor and at UNDEERC in a drop tube furnace (DTF). This project is cost-shared with the US EPA and the US DOE through UNDEERC. During the first year of this two year project, six coals from the IBC sample program (IBC-101, 102, 104, 105, 106 and 109) were studied. Under non-optimized conditions in the FBR, desulfurized chars were made with SO{sub 2} emissions 60--71% lower than the parent coals, depending on the coal. Chars prepared from four of the six coals had SO{sub 2} emissions less than 2.5 lbs SO{sub 2}/MMBtu. Under optimum conditions, SO{sub 2} emissions of one of the coals were reduced nearly 67%, from 4.60 to 1.49 lbs SO{sub 2}/MMBtu. MG reduced the chlorine content of one coal 93%.

  14. Innovative Clean Coal Technology (ICCT). Technical progress report, second & third quarters, 1993, April 1993--June 1993, July 1993--September 1993

    SciTech Connect

    1995-09-01

    The objective of this project is to demonstrate and evaluate commercially available Selective Catalytic Reduction (SCR) catalysts from U.S., Japanese, and European catalyst suppliers on a high-sulfur U.S. coal-fired boiler. SCR is a post-combustion nitrogen oxide (NOx) control technology that involves injecting ammonia into the flue gas generated from coal combustion in an electric utility boiler. The flue gas containing ammonia is then passed through a reactor that contains a specialized catalyst. In the presence of the catalyst, the ammonia reacts with NOx to convert it to nitrogen and water vapor. Although SCR is widely practiced in Japan and Europe on gas-, oil-, and low-sulfur coal-fired boilers, there are several technical uncertainties associated with applying SCR to U.S. coals. These uncertainties include: (1) potential catalyst deactivation due to poisoning by trace metal species present in U.S. coals that are not present in other fuels; (2) performance of the technology and effects on the balance-of-plant equipment in the presence of high amounts of SO{sub 2} and SO{sub 3}; and (3) performance of a wide variety of SCR catalyst compositions, geometries and methods of manufacture under typical high-sulfur coal-fired utility operating conditions. These uncertainties are being explored by constructing and operating a series of small-scale SCR reactors and simultaneously exposing different SCR catalysts to flue gas derived from the combustion of high sulfur U.S. coal. The demonstration is being performed at Gulf Power Company`s Plant Crist Unit No. 5 (75 MW capacity) near Pensacola, Florida. The project is funded by the U.S. Department of Energy (DOE), Southern Company Services, Inc. (SCS on behalf of the entire Southern electric system), the Electric Power Research Institute (EPRI), and Ontario Hydro. SCS is the participant responsible for managing all aspects of this project.

  15. Engineering design and analysis of advanced physical fine coal cleaning technologies. Quarterly technical progress report No. 8, July--September 1991

    SciTech Connect

    Gallier, P.W.

    1991-10-20

    The major goal is to provide the simulation tools for modeling both conventional and advanced coal cleaning technologies. This DOE project is part of a major research initiative by the Pittsburgh Energy Technology Center (PETC) aimed at advancing three advanced coal cleaning technologies- heavy-liquid cylconing, selective agglomeration, and advanced froth flotation through the proof-of- concept (POC) level. The commercially available ASPEN PLUS process simulation package will be extended to handle coal applications. Algorithms for predicting the process performance, equipment size, and flowsheet economics of commercial coal cleaning devices and related ancillary equipment will be incorporated into the coal cleaning simulator. This report is submitted to document the progress of Aspen Technology, Inc. (ApsenTech), its contractor, ICF Kaiser Engineers, Inc., (ICF KE) and CQ Inc., a subcontractor to ICF KE, for the seventh quarterly reporting period, April through June 1991. ICF KE is providing coal preparation consulting and processing engineering services in this work and they are responsible for recommending the design of models to represent conventional coal cleaning equipment and costing of these models.

  16. Engineering development of advanced physical fine coal cleaning for premium fuel applications. Quarterly technical progress report 15, April--June 1996

    SciTech Connect

    Moro, N.; Shields, G.L.; Smit, F.J.; Jha, M.C.

    1996-07-25

    Goal is engineering development of two advanced physical fine coal cleaning processes, column flotation and selective agglomeration, for premium fuel applications. Scope includes laboratory research and bench-scale testing on 6 coals to optimize these processes, followed by design/construction/operation of a 2-t/hr PDU. During this quarter, parametric testing of the 30-in. Microcel{trademark} flotation column at the Lady Dunn plant was completed and clean coal samples submitted for briquetting. A study of a novel hydrophobic dewatering process continued at Virginia Tech. Benefits of slurry PSD (particle size distribution) modification and pH adjustment were evaluated for the Taggart and Hiawatha coals; they were found to be small. Agglomeration bench-scale test results were positive, meeting product ash specifications. PDU Flotation Module operations continued; work was performed with Taggart coal to determine scaleup similitude between the 12-in. and 6-ft Microcel{trademark} columns. Construction of the PDU selective agglomeration module continued.

  17. Engineering development of advanced physical fine coal cleaning for premium fuel applications. Quarterly technical progress report 12, July--September 1995

    SciTech Connect

    Moro, N.; Shields, G.L.; Smit, F.J.; Jha, M.C.

    1995-10-31

    The primary goal of this project is the engineering development of two advanced physical fine coal cleaning processes, column flotation and selective agglomeration, for premium fuel applications. The project scope includes laboratory research and bench-scale testing on six coals to optimize these processes, followed by design, and construction and operation of a 2-t/hr process development unit. The project began in October, 1992, and is scheduled for completion by June, 1997. During Quarter 12 (July--September 1995), work continued on the Subtask 3.2 in-plant testing of the Microcel{trademark} flotation column at Lady Dunn. Under Subtask 4.4, additional toxic trace element analysis of column flotation samples finalized the data set. Data analysis indicates that reasonably good mass balances were achieved for most elements. The final Subtask 6.3 Selective Agglomeration Process Optimization topical report was issued this quarter. Preliminary Subtask 6.4 work investigating coal-water-fuel slurry formulation indicated that selective agglomeration products formulate slurries with lower viscosities than advanced flotation products. Work continued on Subtask 6.5 agglomeration bench-scale testing. Results indicate that a 2 lb ash/MBtu product could be produced at a 100-mesh topsize with the Elkhorn No. 3 coal. The detailed design of the 2 t/hr selective agglomeration module neared completion this quarter with the completion of additional revisions of both the process flow, and the process piping and instrument diagrams. Construction of the 2 t/hr PDU and advanced flotation module was completed this quarter and startup and shakedown testing began.

  18. Engineering development of advanced physical fine coal cleaning for premium fuel applications. Quarterly technical progress report No. 2, January--March 1993

    SciTech Connect

    Smit, F.J.; Jha, M.C.

    1993-04-26

    The main purpose of this project is engineering development of advanced column flotation and selective agglomeration technologies for cleaning coal. Development of these technologies is an important step in the Department of Energy program to show that ultra-clean fuel can be produced from selected United States coals and that this fuel will be a cost-effective replacement for a portion of the premium fuels (oil and natural gas) burned by electric utility and industrial boilers in this country. Capturing a relatively small fraction of the total utility and industrial oil-fired boiler fuel market would have a significant impact on domestic coal production and reduce national dependence on petroleum fuels. Significant potential export markets also exist in Europe and the Pacific Rim for cost-effective premium fuels prepared from ultra-clean coal. The replacement of premium fossil fuels with coal can only be realized if retrofit costs, and boiler derating are kept to a minimum. Also, retrofit boiler emissions must be compatible with national goals for clean air. These concerns establish the specifications for the ash and sulfur levels and combustion properties of ultra-clean coal discussed below. The cost-shared contract effort is for 48 months beginning September 30, 1992, and ending September 30, 1996. This report discusses the technical progress made during the second 3 months of the project, January 1 to March 31, 1993.

  19. Pelletizing/reslurrying as a means of distributing and firing clean coal. Final quarterly technical progress report No. 7, January 1, 1992-- March 31, 1992

    SciTech Connect

    Conkle, H.N.

    1992-06-09

    Work in this quarter focused on completing (1) the final batch of pilot-scale disk pellets, (2) storage, handling, and transportation evaluation, (3) pellet reslurrying and atomization studies, and (4) cost estimation for pellet and slurry production. Disk pelletization of Elkhorn coal was completed this quarter. Pellets were approximately 1/2- to 3/4-in. in diameter. Pellets, after thermal curing were strong and durable and exceeded the pellet acceptance criteria. Storage and handling tests indicate a strong, durable pellet can be prepared from all coals, and these pellets (with the appropriate binder) can withstand outdoor, exposed storage for at least 4 weeks. Pellets in unexposed storage show no deterioration in pellet properties. Real and simulated transportation tests indicate truck transportation should generate less than 5 percent fines during transport. Continuous reslurrying testing and subsequent atomization evaluation were performed this quarter in association with University of Alabama and Jim Walter Resources. Four different slurries of approximately 55-percent-solids with viscosities below 500 cP (at 100 sec{sup {minus}1}) were prepared. Both continuous pellet-to-slurry production and atomization testing was successfully demonstrated. Finally, an in depth evaluation of the cost to prepare pellets, transport, handle, store, and convert the pellet into Coal Water Fuel (CWF) slurries was completed. Cost of the pellet-CWF option are compared with the cost to directly convert clean coal filter cake into slurry and transport, handle and store it at the user site. Findings indicate that in many circumstances, the pellet-CWF option would be the preferred choice. The decision depends on the plant size and transportation distance, and to a lesser degree on the pelletization technique and the coal selected.

  20. Engineering development of advanced physical fine coal cleaning for premium fuel applications. Quarterly technical progress report 11, April--June, 1995

    SciTech Connect

    Moro, N.; Shields, G.L.; Smit, F.J.; Jha, M.C.

    1995-07-31

    The primary goal of this project is the engineering development of two advanced physical fine coal cleaning processes, column flotation and selective agglomeration, for premium fuel applications. The project scope includes laboratory research and bench-scale testing on six coals to optimize these processes, followed by design, and construction of a 2-t/hr process development unit (PDU). The PDU will then be operated to generate 200 tons of each of three project coals, by each process. During Quarter 11 (April--June, 1995), work continued on the Subtask 3.2 in-plant testing of the Microcel{trademark} flotation column at the Lady Dunn Preparation Plant with the installation and calibration of a refurbished 30-inch diameter column. The evaluation of toxic trace element data for column flotation samples continued, with preliminary analysis indicating that reasonably good mass balances were achieved for most elements, and that significant reductions in the concentration of many elements were observed from raw coal, to flotation feed, to flotation product samples. Significant progress was made on Subtask 6.5 selective agglomeration bench-scale testing. Data from this work indicates that project ash specifications can be met for all coals evaluated, and that the bulk of the bridging liquid (heptane) can be removed from the product for recycle to the process. The detailed design of the 2 t/hr selective agglomeration module progressed this quarter with the completion of several revisions of both the process flow, and the process piping and instrument diagrams. Procurement of coal for PDU operation began with the purchase of 800 tons of Taggart coal. Construction of the 2 t/hr PDU continued through this reporting quarter and is currently approximately 60% complete.

  1. RTO Technical Publications: A Quarterly Listing

    NASA Technical Reports Server (NTRS)

    2005-01-01

    A quarterly listing of RTO technical publications is presented. The topics include: Handbook on the Analysis of Smaller-Scale Contingency Operations in Long Term Defence Planning; 2) Radar Polarimetry and Interferometry; 3) Combat Casualty Care in Ground-Based Tactical Situations: Trauma Technology and Emergency Medical Procedures; and 4) RTO Technical Publications: A Quarterly Listing

  2. Engineering development of advanced physical fine coal cleaning for premium fuel applications. Quarterly technical progress report 14, January--March 1996

    SciTech Connect

    Moro, N.; Shields, G.L.; Smit, F.J.; Jha, M.C.

    1996-04-30

    The primary goal of this project is the engineering development of two advanced physical fine coal cleaning processes, column flotation and selective agglomeration, for premium fuel applications. The project scope includes laboratory research and bench-scale testing on six coals to optimize these processes, followed by the design, construction, and operation of a 2-t/hr process development unit (PDU). The project began in October, 1992, and is scheduled for completion by June 1997. During Quarter 14 (January--March 1996), parametric testing of the 30-inch Microcel{trademark} flotation column at the Lady Dunn Plant continued under Subtask 3.2. Subtask 3. 3 testing, investigating a novel Hydrophobic Dewatering process (HD), continued this quarter with parametric testing of the batch dewatering unit. Coal product moistures of 3 to 12 percent were achieved, with higher percent solids slurry feeds resulting in lower product moistures. For a given percent solids feed, the product moisture decreased with increasing butane to dry coal ratios. Stirring time, stirring rate, and settling time were all found to have little effect on the final moisture content. Continuing Subtask 6.4 work, investigating coal-water-fuel slurry formulation for coals cleaned by selective agglomeration, indicated that pH adjustment to 10 resulted in marginally better (lower viscosity) slurries for one of the two coals tested. Subtask 6.5 agglomeration bench-scale testing results indicate that the new Taggart coal requires a grind with a d{sub 80} of approximately 33 microns to achieve the 1 lb ash/MBtu product quality specification. Also under Subtask 6.5, reductions in the various trace element concentrations accomplished during selective agglomeration were determined. Work was essentially completed on the detailed design of the PDU selective agglomeration module under Task 7 with the issuing of a draft report.

  3. Engineering development of advanced physical fine coal cleaning for premium fuel applications. Quarterly technical progress report No. 8, July 1994--September 1994

    SciTech Connect

    Moro, N.; Shields, G.L.; Smit, F.J.; Jha, M.C.

    1994-10-31

    The primary goal of this project is the engineering development of two advanced physical fine coal cleaning processes, column flotation and selective agglomeration, for premium fuel applications. The project scope includes laboratory research and bench-scale testing on six coals to optimize these processes, followed by design, and construction of a 2 t/hr process development unit (PDU). The PDU will then be operated to generate 200 ton lots of each of three project coals, by each process. The project began in October, 1992 and is scheduled for completion by March, 1997. During Quarter 8 (July - September, 1994), work on the formulation of coal water slurries from flotation concentrates was completed. Parametric and optimization tests were performed on the Indiana VII coal using a 12-inch MicrocelT{sup M} flotation column. Laboratory research on selective agglomeration was completed with limited testing of the Dietz coal and alternate agglomerants. Initial planning has started for the bench-scale agglomeration unit which will utilize heptane as the bridging liquid in a conventional two-stage system, and steam stripping for heptane recovery and recycle. A project review meeting was held at Bechtel to discuss the detailed design of the PDU, which is being designed to process Indiana VII, Sunnyside, and Taggart coals. Process flow, piping and instrument, and equipment layout diagrams are being revised to reflect the process improvements resulting from bench-scale testing. Material Requisition activity has commenced, and will continue next quarter along with the selection of a construction subcontractor.

  4. POC-scale testing of a dry triboelectrostatic separator for fine coal cleaning. First quarterly technical progress report, September 27, 1995--December 31, 1995

    SciTech Connect

    Yoon, R.H.; Luttrell, G.H.; Adel, G.T.

    1995-12-31

    The Pittsburgh Energy Technology Center (PETC) developed a triboelectrostatic separation (TES) process which is capable of removing mineral matter from coal without using water. A distinct advantage of this dry coal cleaning process is that it does not entail costly steps of dewatering which is a common problem associated with conventional fine coal cleaning processes. It is the objective of this project to conduct a series of proof-of-concept (POC) scale tests at a throughput of 200--250 kg/hr and obtain scale- up information. Prior to the POC testing, bench-scale test work will be conducted with the objective of increasing the separation efficiency and throughput, for which changes in the basic designs for the charger and the separator may be necessary. The bench- and POC- scale test work will be carried out to evaluate various operating parameters and establish a reliable scale-up procedure. The scale-up data will be used to analyze the economic merits of the TES process. During the past quarter, a number of project tasks have been initiated. All documents required for project startup (i.e., work plans, management plans, etc.) have been submitted to DOE for approval. A bench-scale TES unit and an apparatus for studying tribocharging mechanisms have been designed and are currently being fabricated. One of the three coal samples to be used for bench-scale testing has been acquired.

  5. Engineering development of advanced physical fine coal cleaning technologies: Froth flotation. Quarterly technical progress report No. 11, April 1, 1991--June 30, 1991

    SciTech Connect

    Not Available

    1991-12-31

    This document a quarterly report prepared in accordance with the project reporting requirements covering the period from July 1, 1992 to September 30, 1992. This report provides a summary of the technical work undertaken during this period, highlighting the major results. A brief description of the work done prior to this quarter is provided in this report under the task headings. The overall project scope of the engineering development project is to conceptually develop a commercial flowsheet to maximize pyritic sulfur reduction at practical energy recovery values. This is being accomplished by utilizing the basic research data on the surface properties of coal, mineral matter and pyrite obtained from the Coal Surface Control for Advanced Fine Coal Flotation Project, to develop this conceptual flowsheet. The conceptual flowsheet must be examined to identify critical areas that need additional design data. This data will then be developed using batch and semi-continuous bench scale testing. In addition to actual bench scale testing, other unit operations from other industries processing fine material will be reviewed for potential application and incorporated into the design if appropriate. The conceptual flowsheet will be revised based on the results of the bench scale testing and areas will be identified that need further larger scale design data verification, to prove out the design.

  6. AGEX II: Technical quarterly, Volume 2

    SciTech Connect

    Ekdahl, C.

    1995-03-01

    The AGEX II Technical Quarterly publishes short technical contributions on above ground experiments that use pulsed power and laser drivers. The Quarterly is intended to provide rapid exposure of timely technical ideas and results as well as a means for documenting AGEX II progress and scientific quality for the AGEX II community. Suitable topics include experimental results, diagnostic apparatus, theoretical design, and scaling, among others.

  7. Engineering development of advanced physical fine coal cleaning for premium fuel applications. Quarterly technical progress report 13, October--December, 1995

    SciTech Connect

    Moro, N.; Shields, G.L.; Smit, F.J.; Jha, M.C.

    1996-01-31

    The primary goal of this project is the engineering development of two advanced physical fine coal cleaning processes, column flotation and selective agglomeration, for premium fuel applications. The project scope includes laboratory research and bench-scale testing on six coals to optimize these processes, followed by the design, construction, and operation of a 2-t/hr process development unit. During Quarter 13 (October--December 1995), testing of the GranuFlow dewatering process indicated a 3--4% reduction in cake moisture for screen-bowl and solid-bowl centrifuge products. The Orimulsion additions were also found to reduce the potential dustiness of the fine coal, as well as improve solids recovery in the screen-bowl centrifuge. Based on these results, Lady Dunn management now plans to use a screen bowl centrifuge to dewater their Microcel{trademark} column froth product. Subtask 3.3 testing, investigating a novel Hydrophobic Dewatering process (HD), continued this quarter. Continuing Subtask 6.4 work, investigating coal-water-slurry formulation, indicated that selective agglomeration products can be formulated into slurries with lower viscosities than advanced flotation products. Subtask 6.5 agglomeration bench-scale testing results indicate that a very fine grind is required to meet the 2 lb ash/MBtu product specification for the Winifrede coal, while the Hiawatha coal requires a grind in the 100- to 150-mesh topsize range. Detailed design work remaining involves the preparation and issuing of the final task report. Utilizing this detailed design, a construction bid package was prepared and submitted to three Colorado based contractors for quotes as part of Task 9.

  8. POC-scale testing of a dry triboelectrostatic separator for fine coal cleaning. Second quarterly technical progress report, January 1, 1996--March 31, 1996

    SciTech Connect

    Yoon, R.-H.; Luttrell, G.H.; Adel, G.T.

    1996-08-01

    The Pittsburgh Energy Technology Center (PETC) developed a triboelectrostatic separation (TES) process which is capable of removing mineral matter from coal without using water. A distinct advantage of this dry coal cleaning process is that it does not entail costly steps of dewatering which is a common problem associated with conventional fine coal cleaning processes. It is the objective of this project to conduct a series of proof-of-concept (POC) scale tests at a throughput of 200--250 kg/hr and obtain scale- up information. Prior to the POC testing, bench-scale test work will be conducted with the objective of increasing the separation efficiency and throughput, for which changes in the basic designs for the charger and the separator may be necessary. The bench- and POC- scale test work will be carried out to evaluate various operating parameters and establish a reliable scale-up procedure. The scale-up data will be used to analyze the economic merits of the TES process. All required documents associated with project planning were completed and submitted to DOE for approval during the second quarter of this project. Approval of the project work plan is still pending at this time subject to additional review by DOE of requested modifications to the statement of work. Accomplishments during this reporting period include the set-up of an apparatus for assessing tribocharger performance, continued construction of the bench-scale (1 kg/hr) triboelectrostatic separator and initial development of a fundamental model for predicting the motion of charged particles in a non-uniform electrostatic field.

  9. A systematic assessment of the state of hazardous waste clean-up technologies. Quarterly technical progress report, April 1--June 30, 1993

    SciTech Connect

    Berg, M.T.; Reed, B.E.; Gabr, M.

    1993-07-01

    West Virginia University (WVU) and the US DOE Morgantown Energy Technology Center (METC) entered into a Cooperative Agreement on August 29, 1992 entitled ``Decontamination Systems Information and Research Programs.`` Stipulated within the Agreement is the requirement that WVU submit to METC a series of Technical Progress Report for Year 1 of the Agreement. This report reflects the progress and/or efforts performed on the following nine technical projects encompassed by the Year 1 Agreement for the period of April 1 through June 30, 1993: Systematic assessment of the state of hazardous waste clean-up technologies; site remediation technologies -- drain-enhanced soil flushing (DESF) for organic contaminants removal; site remediation technologies -- in situ bioremediation of organic contaminants; excavation systems for hazardous waste sites; chemical destruction of polychlorinated biphenyls; development of organic sensors -- monolayer and multilayer self-assembled films for chemical sensors; Winfield lock and dam remediation; Assessments of Technologies for hazardous waste site remediation -- non-treatment technologies and pilot scale test facility implementation; and remediation of hazardous sites with stream reforming.

  10. Engineering development of advanced physical fine coal cleaning for premium fuel applications. Quarterly technical progress report 9, October 1, 1994--December 31, 1994

    SciTech Connect

    Moro, N.; Shields, G.L.; Smit, F.J.; Jha, M.C.

    1995-01-25

    The primary goal of this project is the engineering development of two advanced physical fine coal cleaning processes, column flotation and selective agglomeration, for premium fuel applications. The project scope includes laboratory research and bench-scale testing on six coals to optimize these processes, followed by design, and construction of a 2-t/hr process development unit (PDU). The PDU will then be operated to generate 200 ton lots of each of three project coals, by each process. The project began in October, 1992 and is scheduled for completion by March, 1997. During Quarter 9 (October--December, 1995), parametric and optimization testing was completed for the Taggart, Sunnyside, and Indiana VII coal using a 12-inch Microcel{trademark} flotation column. The detailed design of the 2-t/hr PDU grinding, flotation, and dewatering circuits neared completion with the specification of the major pieces of capital equipment to be purchased for these areas. Selective agglomeration test work investigated the properties of various industrial grades of heptane for use during bench- and PDU-scale testing. It was decided to use a hydrotreated grade of commercial heptane due to its low cost and low concentration of aromatic compounds. The final Subtask 6.4 CWF Formulation Studies Test Plan was issued. A draft version of the Subtask 6.5 Preliminary Design and Test Plan Report was also issued, discussing the progress made in the design of the bench-scale selective agglomeration unit. PDU construction work moved forward through the issuing of 26 request for quotations and 21 award packages for capital equipment.

  11. RTO Technical Publications: A Quarterly Listing

    NASA Technical Reports Server (NTRS)

    2004-01-01

    This is a listing of recent unclassified RTO technical publications processed by the NASA Center for AeroSpace Information. Contents include the following: RTO Technical Publications: A Quarterly Listing. Implications of Multilingual Interoperability of Speech Technology for Military Use. Non-Lethal Weapons and Future Peace Enforcement Operations.

  12. Innovative Clean Coal Technology (ICCT): 500 MW demonstration of advanced wall-fired combustion techniques for the reduction of nitrogen oxide (NO{sub x}) emissions from coal-fired boilers. Third quarterly technical progress report

    SciTech Connect

    Not Available

    1993-12-31

    This quarterly report discusses the technical progress of an Innovative Clean Coal Technology (ICCT) demonstration of advanced wall-fired combustion techniques for the reduction of nitrogen oxide (NO{sub x}) emissions from coal-fired boilers. The project provides a stepwise retrofit of an advanced overfire air (AOFA) system followed by low NO{sub x} burners (LNB). During each test phase of the project, diagnostic, performance, long-term, and verification testing will be performed. These tests are used to quantify the NO{sub x} reductions of each technology and evaluate the effects of those reductions on other combustion parameters such as particulate characteristics and boiler efficiency. Baseline, AOFA, LNB, and LNB plus AOFA test segments have been completed. Analysis of the 94 days of LNB long-term data collected show the full-load NO{sub x} emission levels to be approximately 0.65 lb/MBtu with fly ash LOI values of approximately 8 percent. Corresponding values for the AOFA configuration are 0.94 lb/MBtu and approximately 10 percent. For comparison, the long-term full-load, baseline NO{sub x} emission level was approximately 1.24 lb/MBtu at 5.2 percent LOI. Comprehensive testing in the LNB+AOFA configuration indicate that at full-load, NO{sub x} emissions and fly ash LOI are near 0.40 lb/MBtu and 8 percent, respectively. However, it is believed that a substantial portion of the incremental change in NO{sub x} emissions between the LNB and LNB+AOFA configurations is the result of additional burner tuning and other operational adjustments and is not the result of the AOFA system. During this quarter, LNB+AOFA testing was concluded. Testing performed during this quarter included long-term and verification testing in the LNB+AOFA configuration.

  13. Engineering development of advanced physical fine coal cleaning for premium fuel applications. Quarterly technical progress report No. 1, October--December 1992

    SciTech Connect

    Smit, F.J.; Jha, M.C.

    1993-01-18

    This project is a step in the Department of Energy`s program to show that ultra-clean fuel can be produced from selected coals and that the fuel will be a cost-effective replacement for oil and natural gas now fueling boilers in this country. The replacement of premium fossil fuels with coal can only be realized if retrofit costs are kept to a minimum and retrofit boiler emissions meet national goals for clean air. These concerns establish the specifications for maximum ash and sulfur levels and combustion properties of the ultra-clean coal. The primary objective is to develop the design base for prototype commercial advanced fine coal cleaning facilities capable of producing ultra-clean coals suitable for conversion to coal-water slurry fuel. The fine coal cleaning technologies are advanced column flotation and selective agglomeration. A secondary objective is to develop the design base for near-term commercial integration of advanced fine coal cleaning technologies in new or existing coal preparation plants for economically and efficiently processing minus 28-mesh coal fines. A third objective is to determine the distribution of toxic trace elements between clean coal and refuse when applying the advance column flotation and selective agglomeration technologies. The project team consists of Amax Research & Development Center (Amax R&D), Amax Coal industries, Bechtel Corporation, Center for Applied Energy Research (CAER) at the University of Kentucky, and Arcanum Corporation.

  14. Engineering design and analysis of advanced physical fine coal cleaning technologies. Quarterly technical progress report No. 13, October--December 1992

    SciTech Connect

    Gallier, P.W.

    1993-01-20

    This project is sponsored by the United States Department of Energy (DOE) for the ``Engineering Design and Analysis of Advanced Physical Fine Coal Cleaning Technologies: The major goal is to provide the simulation tools for modeling both conventional and advanced coal cleaning technologies. This DOE project is part of a major research initiative by the Pittsburgh Energy Technology Center (PETC) aimed at advancing three advanced coal cleaning technologies-heavy-liquid cycloning, selective agglomeration, and advanced froth flotation through the proof-of-concept (POC) level. The commercially available ASPEN PLUS process simulation package will be extended to handle coal cleaning applications. Algorithms for predicting the process performance, equipment size, and flowsheet economics of commercial coal cleaning devices and related ancillary equipment will be incorporated into the coal cleaning simulator. This report is submitted to document the progress of Aspen Technology, Inc. (AspenTech), its contractor, ICF Kaiser Engineers, Inc.,(ICF KE) and CQ Inc., a subcontractor to ICF KE, for the period of October through December 1992. ICF KE is providing coal preparation consulting and processing engineering services in this work and they are responsible for recommending the design of models to represent conventional coal cleaning equipment and costing of these models. CQ Inc. is a subcontractor to ICF KE on Tasks 1-5.

  15. Engineering development of advanced physical fine coal cleaning technologies: Froth flotation. Quarterly technical progress report No. 17, August 1, 1992--December 31, 1992

    SciTech Connect

    Not Available

    1992-12-31

    The construction of the DOE POC at the OCDO facility continued through this entire quarter. By the end of the quarter approximately 90% of all of the construction had been completed. All equipment has beeninstalled, checked for mechanical and installation and operated from a local pushbutton. During this quarter a review of items to be completed for start-up was compiled. This information was then presented to the construction subcontractors and agreement was concluded that all items will be completed and operational for processing coal by February 1, 1993. There are still several items that were not on site for installation during this quarter. These items are the flocculant controls supplied by Westec Engineering, Inc., and the discharge valve for the hyperbaric filter supplied by KHD. Neither of these items will prevent start-up. The flocculants can be manually controlled and provisions are all ready provided to bypass the hyperbaric filter to the Sharpels high-G centrifuge. Both of these items are scheduled for delivery in mid-January.

  16. Engineering design and analysis of advanced physical fine coal cleaning technologies. Quarterly technical progress report No. 9, October--December 1991

    SciTech Connect

    Not Available

    1992-01-20

    This project is sponsored by the United States Department of Energy (DOE) for the ``Engineering Design and Analysis of Advanced Physical Fine Coal Cleaning Technologies. The major goal is to provide the simulation tools for modeling both conventional and advanced coal cleaning technologies. This DOE project is part of a major research initiative by the Pittsburgh Energy Technology Center (PETC) aimed at advancing three advanced coal cleaning technologies-heavy-liquid cylconing, selective agglomeration, and advanced froth flotation through the proof-of-concept (POC) level.

  17. Engineering design and analysis of advanced physical fine coal cleaning technologies. Quarterly technical progress report No. 12, July--September 1992

    SciTech Connect

    Gallier, P.W.

    1992-10-20

    The major goal is to provide the simulation tools for modeling both conventional and advanced coal cleaning technologies. This DOE project is part of a major research initiative by the Pittsburgh Energy Technology Center (PETC) aimed at advancing three advanced coal cleaning technologies- advanced cylconing, selective agglomeration, and advanced froth flotation through the proof-of-concept. The commercially available ASPEN PLUS process simulation package will be extended to handle coal cleaning applications. Algorithms for predicting the process performance, equipment size, and flowsheet economics of commercial coal cleaning devices and related ancillary equipment will be incorporated into the coal cleaning simulator. This report is submitted to document the progress of Aspen Technology Inc. (AspenTech), its contractor, ICF Kaiser Engineers, Inc., (ICF KE) and CQ Inc., for the period of July through September 1992. ICF KE is providing coal preparation consulting and processing engineering services in this work and they are responsible for recommending the design of models to represent conventional coal cleaning equipment and costing of these models. CQ Inc. is a subcontractor to ICF KE on Tasks I - 5 and is a contractor to AspenTech on Task 6.

  18. Engineereing development of advanced physical fine coal cleaning for premium fuel applications. Quarterly technical progress report No. 5, October--December 1993

    SciTech Connect

    Smit, F.J.; Jha, M.C.

    1994-02-18

    This project is a major step in the Department of Energy`s program to show that ultra-clean coal-water slurry fuel (CWF) can be produced from selected coals and that this premium fuel will be a cost-effective replacement for oil and natural gas now fueling some of the industrial and utility boilers in the United States. The replacement of oil and gas with CWF can only be realized if retrofit costs are kept to a minimum and retrofit boiler emissions meet national goals for clean air. These concerns establish the specifications for maximum ash and sulfur levels and combustion properties of the CWF. The project has three major objectives: The primary objective is to develop the design base for prototype commercial advanced fine coal cleaning facilities capable of producing ultra-clean coals suitable for conversion to coal-water slurry fuel for premium fuel applications. The fine coal cleaning technologies are advanced column flotation and selective agglomeration. A secondary objective is to develop the design base for near-term application of these advanced fine coal cleaning technologies in new or existing coal preparation plants for efficiently processing minus 28-mesh coal fines and converting this to marketable products in current market economics. A third objective is to determine the removal of toxic trace elements from coal by advance column flotation and selective agglomeration technologies.

  19. Innovative Clean Coal Technology (ICCT): 500 MW demonstration of advanced wall-fired combustion techniques for the reduction of nitrogen oxide (NO{sub x}) emissions from coal-fired boilers. Technical progress report, third quarter 1991

    SciTech Connect

    Not Available

    1992-02-03

    This quarterly report discusses the technical progress of an Innovative Clean Coal Technology (ICCT) demonstration of advanced wall-fired combustion techniques for the reduction of nitrogen oxide (NO{sub x}) emissions from coal-fired boilers. The project is being conducted at Georgia Power Company`s Plant Hammond Unit 4 located near Rome, Georgia. The primary goal of this project is the characterization of the low NO{sub x} combustion equipment through the collection and analysis of long-term emissions data. A target of achieving fifty percent NO{sub x} reduction using combustion modifications has been established for the project. The project provides a stepwise retrofit of an Advanced Overfire Air (AOFA) system followed by Low NO{sub x} Burners (LNB). During each test phase of the project, diagnostic, performance, long-term, and verification testing will be performed. These tests are used to quantify the NO{sub x} reductions of each technology and evaluate the effects of those reductions on other combustion parameters such as particulate characteristics and boiler efficiency.

  20. Innovative Clean Coal Technology (ICCT): 500 MW demonstration of advanced wall-fired combustion techniques for the reduction of nitrogen oxide (NO{sub x}) emissions from coal-fired boilers. Technical progress report, Second quarter 1992

    SciTech Connect

    Not Available

    1992-08-24

    This quarterly report discusses the technical progress of an Innovative Clean Coal Technology (ICCT) demonstration of advanced wall-fired combustion techniques for the reduction of nitrogen oxide (No{sub x}) emissions from coal-fired boilers. The project is being conducted at Georgia Power Company`s Plant Hammond Unit 4 located near Rome, Georgia. The primary goal of this project is the characterization of the low NO{sub x} combustion equipment through the collection and analysis of long-term emissions data. A target of achieving fifty percent NO{sub x} reduction using combustion modifications has been established for the project. The project provides a stepwise retrofit of an advanced overfire air (AOFA) system followed by low NO{sub x} burners (LNB). During each test phase of the project, diagnostic, performance, long-term, and verification testing will be performed. These tests are used to quantify the NO{sub x} reductions of each technology and evaluate the effects of those reductions on other combustion parameters such as particulate characteristics and boiler efficiency.

  1. Engineering development of advanced physical fine coal cleaning for premium fuel applications. Quarterly technical progress report 16, July--September, 1996

    SciTech Connect

    Shields, G.L.; Moro, N.; Smit, F.J.; Jha, M.C.

    1996-10-30

    The primary goal of this project is the engineering development of two advanced physical fine coal cleaning processes, column flotation and selective agglomeration, for premium fuel applications. The project scope includes laboratory research and bench-scale testing on six coals to optimize these processes, followed by the design, construction, and operation of a 2-t/hr process development unit (PDU). The project began in October, 1992, and is scheduled for completion by September 1997. 28 refs., 13 figs., 19 tabs.

  2. Investigation of flushing and clean-out methods for refrigeration equipment to ensure system compatibility. Quarterly technical progress report, September 15, 1994--December 15, 1994

    SciTech Connect

    Byrne, J.J.

    1995-07-01

    Integral Sciences Incorporated is engaged in Part 2 of ARTI Contract No. 660-52502 assessing methods for removing residual mineral oil during retrofits of refrigeration systems. Part 2 focuses on a low side oil separator technique for removing mineral oil from systems being retrofitted to use HFC-134a. The method appears less expensive than the current practice of three lubricant changes with polyolester and may effect an accelerated transition to HFC`s. Testing and method verification has been performed using a refrigeration system located at ISI`s facility. Two HFC-134a field retrofits employing this method will be implemented during the first quarter of 1995. A third and final field retrofit will also be performed to evaluate the advanced method in an R-502 conversion.

  3. Engineering development of advanced physical fine coal cleaning technologies: Froth flotation. Quarterly technical progress report No. 12, July 1, 1991--September 30, 1991

    SciTech Connect

    Not Available

    1991-12-31

    The design criteria for each unit operation have been developed based upon a number of variables. These variables, at this time, are based upon the best engineering design information available to industry. A number of assumptions utilized in the design criteria are uncertain. The uncertainties of inert atmospheres for grinding and flotation as well as pyrite depressants were answered by the Surface Control Project. It was determined that inerting was not required and no ``new`` reagents were presented that improved the flotation results. In addition, Tasks 5 and 6 results indicated the required reagent dosage for conventional flotation and advanced flotation. Task 5 results also indicated the need for a clean coal,thickener, the flocculent dosages for both the clean coal and refuse thickeners, and final dewatering requirements. The results from Tasks 5 and 6 and summarized in Task 7 indicate several uncertainties that require continuous long duration testing. The first is the possibility of producing a grab product for both the Pittsburgh and Illinois No. 6 coals in conventional flotation. Second what does long-term recirculation of clarified water do to the product quality? The verification process and real data obtained from Tasks 5 and 6 greatly reduced the capital and operating costs for the process. This was anticipated and the test work indeed provided confirming data.

  4. POC-scale testing of a dry triboelectrostatic separator for fine coal cleaning. Third quarterly technical progress report, April 1996--June 30, 1996

    SciTech Connect

    Yoon, R.-H.; Mesenyashin, A.; Yan, E.S.; Luttrell, G.H.; Adel, G.T.

    1996-10-01

    The Pittsburgh Energy Technology Center (PETC) developed a triboelectrostatic separation (TES) process which is capable of removing mineral matter from coal without using water. A distinct advantage of this dry coal cleaning process is that it does not entail costly steps of dewatering which is a common problem associated with conventional fine coal cleaning processes. It is the objective of this project to conduct a series of proof-of-concept (POC) scale tests at a throughput of 200--250 kg/hr and obtain scale- up information. Prior to the POC testing, bench-scale test work will be conducted with the objective of increasing the separation efficiency and throughput, for which changes in the basic designs for the charger and the separator may be necessary. The bench- and POC- scale test work will be carried out to evaluate various operating parameters and establish a reliable scale-up procedure. The scale-up data will be used to analyze the economic merits of the TES process. At present, the project is at the stage of engineering design (Task 3). Work accomplished during this reporting period include the construction of a Faraday Cage for measurement of particle charges (Subtask 3.1), construction of a bench-scale triboelectrostatic separator (Subtask 3.2) and development of a theoretical model for predicting motion of charged particles in a non-uniform electrostatic field (Subtask 3.2). This model will be useful for designing the POC module.

  5. Engineering development of advanced physical fine coal cleaning technologies - froth flotation. Quarterly technical progress report No. 23, April 1, 1994--June 30, 1994

    SciTech Connect

    1995-04-01

    A study conducted by Pittsburgh Energy Technology Center of sulfur emissions from about 1,300 United States coal-fired utility boilers indicated that half of the emissions were the result of burning coals having greater than 1.2 pounds of SO{sub 2} per million BTU. This was mainly attributed to the high pyritic sulfur content of the boiler fuel. A significant reduction in SO{sub 2} emissions could be accomplished by removing the pyrite from the coals by advanced physical fine coal cleaning. An engineering development project was prepared to build upon the basic research effort conducted under a solicitation for research into Fine Coal Surface Control. The engineering development project is intended to use general plant design knowledge and conceptualize a plant to utilize advanced froth flotation technology to process coal and produce a product having maximum practical pyritic sulfur reduction consistent with maximum practical BTU recovery.

  6. Engineering development of advanced physical fine coal cleaning technologies: Froth flotation. Quarterly technical progress report No. 16, July 1, 1992--September 30, 1992

    SciTech Connect

    Not Available

    1992-12-31

    A study conducted by Pittsburgh Energy Technology Center of sulfur emissions from about 1,300 United States coal-fired utility boilers indicated that half of the emissions were the result of burning coals having greater than 1.2 pounds of SO{sub 2} per million BTU. This was mainly attributed to the high pyritic sulfur content of the boiler fuel. A significant reduction in SO{sub 2} emissions could be accomplished by removing the pyrite from the coals by advanced physical fine coal cleaning. An engineering development project was prepared to build upon the basic research effort conducted under a solicitation for research into Fine Coal Surface Control. The engineering development project is intended to use general plant design knowledge and conceptualize a plant to utilize advanced froth flotation technology to process coal and produce a product having maximum practical pyritic sulfur reduction consistent with maximum practical BTU recovery.

  7. Engineering development of advanced physical fine coal cleaning technologies - froth flotation. Quarterly technical progress report No. 24, July 1, 1994--September 30, 1994

    SciTech Connect

    1995-04-01

    A study conducted by Pittsburgh Energy Technology Center of sulfur emissions from about 1,300 United States coal-fired utility boilers indicated that half of the emissions were the result of burning coals having greater than 1.2 pounds of SO{sub 2} per million BTU. This was mainly attributed to the high pyritic sulfur content of the boiler fuel. A significant reduction in SO{sub 2} emissions could be accomplished by removing the pyrite from the coals by advanced physical fine coal cleaning. An engineering development project was prepared to build upon the basic research effort conducted under a solicitation for research into Fine Coal Surface Control. The engineering development project is intended to use general plant design knowledge and conceptualize a plant to utilize advanced froth flotation technology to process coal and produce a product having maximum practical pyritic sulfur reduction consistent with maximum practical BTU recovery.

  8. Innovative Clean Coal Technology (ICCT): 500 MW demonstration of advanced wall-fired combustion techniques for the reduction of nitrogen oxide (NO{sub x}) emissions from coal-fired boilers. Technical progress report, Fourth quarter 1992

    SciTech Connect

    Not Available

    1992-12-31

    This quarterly report discusses the technical progress of an Innovative Clean Coal Technology (ICCT) demonstration of advanced wall-fired combustion techniques for the reduction of nitrogen oxide (NO{sub x}) emissions from coal-fired boilers. The primary goal of this project is the characterization of the low NO{sub x} combustion equipment through the collection and analysis of long-term emissions data. A target of achieving fifty percent NO{sub x} reduction using combustion modifications has been established for the project. The project provides a stepwise retrofit of an advanced overfire air (AOFA) system followed by low NO{sub x} burners (LNB). During each test phase of the project, diagnostic, performance, long-term, and verification testing will be performed. These tests are used to quantify the NO{sub x } reductions of each technology and evaluate the effects of those reductions on other combustion parameters such as particulate characteristics and boiler efficiency. Baseline, AOFA, and LNB without AOFA test segments have been completed. Analysis of the 94 days of LNB tong-term data collected show the full load NO{sub x} emission levels to be approximately 0.65 lb/MBtu. Flyash LOI values for the LNB configuration are approximately 8 percent at full load. Corresponding values for the AOFA configuration are 0.94 lb/MBtu and approximately 10 percent. Abbreviated diagnostic tests for the LNB+AOFA configuration indicate that at 500 MWe, NO{sub x} emissions are approximately 0.55 lb/MBtu with corresponding flyash LOI values of approximately 11 percent. For comparison, the long-term, full load, baseline NO{sub x} emission level was approximately 1.24 lb/MBtu at 5.2 percent LOI. Comprehensive testing of the LNB+AOFA configuration will be performed when the stack particulate emissions issue is resolved.

  9. Clean Cities Technical Assistance Project (Tiger Teams)

    SciTech Connect

    2016-02-01

    This two-page fact sheet describes Clean Cities' technical assistance (Tiger Teams) capabilities and projects, both completed and ongoing. Tiger Teams are a critical element of the Clean Cities program, providing on-the-ground consultation to help inform program strategies. The knowledge Tiger Team experts gain from these experiences often helps inform other alternative fuels activities, such as needed research, codes and standards revisions, and new training resources.

  10. PFBC HGCU Test Facility. Technical progress report: Third Quarter, CY 1993

    SciTech Connect

    Not Available

    1993-10-01

    This is the sixteenth Technical Progress Report submitted to the Department of Energy (DOE) in connection with the cooperative agreement between the DOE and Ohio Power Company for the Tidd PFBC (pressurized fluidized-bed combustion) Hot Gas Clean Up Test Facility (HGCU). This report covers the period of work completed during the Third Quarter of CY 1993. During this quarter, the Advanced Particle Filter (APF) was operated for a total of 1295 hours. This represents 58% availability during July, August, September, and including June 30 of the previous quarter. The operating dates and times since initial operation are summarized. The APF operating temperatures and differential pressures are provided. Details of the APF runs during this quarter are included in this report.

  11. Clean Energy Works Oregon Final Technical Report

    SciTech Connect

    Jacob, Andria; Cyr, Shirley

    2013-12-31

    In April 2010, the City of Portland received a $20 million award from the U.S. Department of Energy, as part of the Energy Efficiency and Conservation Block Grant program. This award was appropriated under the American Recovery and Reinvestment Act (ARRA), passed by President Obama in 2009. DOE’s program became known as the Better Buildings Neighborhood Program (BBNP). The BBNP grant objectives directed the City of Portland Bureau of Planning and Sustainability (BPS) as the primary grantee to expand the BPS-led pilot program, Clean Energy Works Portland, into Clean Energy Works Oregon (CEWO), with the mission to deliver thousands of home energy retrofits, create jobs, save energy and reduce carbon dioxide emissions.The Final Technical Report explores the successes and lessons learned from the first 3 years of program implementation.

  12. Yucca Mountain Site Characterization Project Technical Data Catalog (quarterly supplement)

    SciTech Connect

    1993-06-30

    The June 1, 1985, Department of Energy (DOE)/Nuclear Regulatory Commission (NRC) Site-Specific Procedural Agreement for Geologic Repository Site Investigation and Characterization Program requires the DOE to develop and maintain a catalog of data which will be updated and provided to the NRC at least quarterly. This catalog is to include a description of the data; the time (date), place, and method of acquisition; and where it may be examined. The Yucca Mountain Site Characterization Project (YMP) Technical Data Catalog is published and distributed in accordance with the requirements of the Site-Specific Agreement. The YMP Technical Data Catalog is a report based on reference information contained in the YMP Automated Technical Data Tracking System (ATDT). The reference information is provided by Participants for data acquired or developed in support of the YMP. The Technical Data Catalog is updated quarterly and published in the month following the end of each quarter. A complete revision to the Catalog is published at the end of each fiscal year. Supplements to the end-of-year edition are published each quarter. These supplements provide information related to new data items not included in previous quarterly updates and data items affected by changes to previously published reference information. The Technical Data Catalog, dated December 31, 1992, should be retained as the baseline document for the supplements until the end-of-year revision is published and distributed in October 1993.

  13. Yucca Mountain Site Characterization Project technical data catalog: Quarterly supplement

    SciTech Connect

    1994-12-31

    The Department of Energy (DOE)/Nuclear Regulatory Commission (NRC) Site-Specific Procedural Agreement for Geologic Repository Site Investigation and Characterization Program requires the DOE to develop and maintain a catalog of data which will be updated and provided to the NRC at least quarterly. This catalog is to include a description of the data; the time (date), place, and method of acquisition; and where the data may be examined. The Yucca Mountain Site Characterization Project (YMP) Technical Data Catalog is published and distributed-in accordance with the requirements of the Site-Specific Agreement. The YMP Technical Data Catalog is a report based on reference information contained in the YMP Automated Technical Data Tracking System (ATDT). The reference information is provided by Participants for data acquired or developed in support of the YMP. The Technical Data Catalog is updated quarterly and distributed in the month following the end of each quarter. A complete revision to the catalog is published at the end of each fiscal year. Supplements to the end-of-year edition are published each quarter. These supplements provide information related to new data items not included in previous quarterly updates and data items affected by changes to previously published reference information. The Technical Data Catalog, dated September 30, 1994, should be retained as the baseline document for the supplements until the end-of-year revision is published and distributed in October 1995.

  14. Yucca Mountain Site Characterization Project: Technical Data Catalog quarterly supplement

    SciTech Connect

    1994-03-31

    The March 21, 1993, Department of Energy (DOE)/Nuclear Regulatory Commission (NRC) Site-Specific Procedural Agreement for Geologic Repository Site Investigation and Characterization Program requires the DOE to develop and maintain a catalog of data which will be updated and provided to the NRC at least quarterly. This catalog is to include a description of the data; the time (date), place, and method of acquisition; and where it may be examined. The Yucca Mountain Site Characterization Project (YMP) Technical Data Catalog is published and distributed in accordance with the requirements of the Site-Specific Agreement. The YMP Technical Data Catalog is a report based on reference information contained in the YMP Automated Technical Data Tracking System (ATDT). The reference information is provided by Participants for data acquired or developed in support of the YMP. The Technical Data Catalog is updated quarterly and published in the month following the end of each quarter. A complete revision to the Catalog is published at the end of each fiscal year. Supplements to the end-of-year edition are published each quarter. These supplements provide information related to new data items not included in previous quarterly updates and data items affected by changes to previously published reference information. The Technical Data Catalog, dated September 30, 1993, should be retained as the baseline document for the supplements until the end-of-year revision is published and distributed in October 1994.

  15. Yucca Mountain Site Characterization Project Technical Data Catalog (Quarterly supplement)

    SciTech Connect

    1993-12-31

    The March 21, 1993, Department of Energy (DOE)/Nuclear Regulatory Commission (NRC) Site-Specific Procedural Agreement for Geologic Repository Site Investigation and Characterization Program requires the DOE to develop and maintain a catalog of data which will be updated and provided to the NRC at least quarterly. This catalog is to include a description of the data; the time (date), place, and method of acquisition; and where it may be examined. The Yucca Mountain Site Characterization Project (YMP) Technical Data Catalog is published and distributed in accordance with the requirements of the Site-Specific Agreement. The YMP Technical Data Catalog is a report based on reference information contained in the YMP Automated Technical Data Tracking System (ATDT). The reference information is provided by Participants for data acquired or developed in support of the YMP. The Technical Data Catalog is updated quarterly and published in the month following the end of each quarter. A complete revision to the Catalog is published at the end of each fiscal year. Supplements to the end-of-year edition are published each quarter. These supplements provide information related to new data items not included in previous quarterly updates and data items affected by changes to previously published reference information. The Technical Data Catalog, dated September 30, 1993, should be retained as the baseline document for the supplements until the end-of-year revision is published and distributed in October 1994.

  16. Quarterly Technical Progress Report June 2015

    SciTech Connect

    Buchholz, Bruce A.

    2015-06-08

    The project has two main goals: 1) Identify the types of adducts naphthalene (NA) forms with DNA and 2) determine whether adduct formation correlates with site selective tumor formation in defined subcompartments of the respiratory tract (respiratory and olfactory nasal epithelium and airways of mice, rats and rhesus monkeys). Five tasks are associated with the completion of the goals. Task 1: Contracting and Animal Use Approvals. IACUC and ACURO approvals are complete, The subcontract with UC Davis (UCD) was executed in December 2014. Task 2: Perform In Vitro Study for Goal 1. Rat samples exposed and in freezer while adduct standards are being made. Mouse samples need to be exposed in next quarter. Task 3: Perform In Vitro Study for Goal 2. Mouse ex vivo samples completed. Rat and monkey samples need to be completed in the next quarter. Task 4: Sample Preparation and Analysis. Mouse Goal 2 samples completed. Other samples remain to be done. Task 5: Data Interpretation and Reporting. Need rat data to write paper on adduct formation.

  17. RTO Technical Publications: A Quarterly Listing

    NASA Technical Reports Server (NTRS)

    2001-01-01

    This is a listing of recent unclassified RTO technical publications processed by the NASA Center for AeroSpace Information from Oct 1, 2001 through Dec 31, 2001. This listing includes one citataion titled 'Logistics Test and Evaluation in Flight'.

  18. Department of Energy quarterly technical report

    SciTech Connect

    Anderson, R.N.

    1995-04-15

    The objective is to test the concept that the growth faults in Eugene Island Block 330 (EI-330 field) are conduits through which producing reservoirs are charged and that enhanced production can be developed by producing directly from the fault zone. The site, operated by Penzoil, is located in 250 feet of water and the productive depth intervals include 4000 to 9000 feet. The field demonstration will be accomplished by drilling and production testing of growth fault systems associated with the EI-330 field. The project utilizes advanced 3-D seismic analysis, geochemical studies, structural and stratigraphic reservoir characterization, reservoir simulation, compact visualization systems. In this quarterly report, progress reports are presented for the following tasks: database management; reservoir characterization; modeling; geochemistry; and data integration.

  19. Gravimelt process development. Quarterly technical progress report

    SciTech Connect

    Not Available

    1983-02-20

    During the current reporting period, the Mod 2, bench-scale Gravimelt reactor was installed, shaken down and operated using a sample of 40% ash run of mine Pittsburgh No. 8 seam coal which had been mine cleaned to a level of 10.3% ash. Operation was successful and an excellent overall mass balance was achieved. Preliminary ash analyses from the test site show the above 97% ash removal calculated from run of mine was obtained as expected from previous laboratory scale tests. Large processed coal samples, prepared during the week of round-the-clock operation, were obtained for the planned washing studies and other protect requirements. 3 tables.

  20. RTO Technical Publications: A Quarterly Listing

    NASA Technical Reports Server (NTRS)

    2002-01-01

    This is a listing of recent unclassified RTO technical publications processed by the NASA Center for AeroSpace Information from Jan 1, 2002 through Mar 31, 2002. Topics covered included information management, ice accretion, digital flight control systems, supercavitation flows, and tactical decision aids.

  1. RTO Technical Publications: A Quarterly Listing

    NASA Technical Reports Server (NTRS)

    2001-01-01

    This is a listing of recent unclassified RTO technical publications processed by the NASA Center for AeroSpace Information. Reports may be downloaded for free from the RTO website at http://www.rta.nato.int or they may be purchased from the NASA Center for AeroSpace Information, 7121 Standard Drive, Hanover, MD 21076-1320 USA, phone 301-621-0390, fax 301-621-0134. Prices and order forms are available from the NASA STI website at http://www.sti.nasa.gov. An automatic distribution of unclassified RTO technical publications in CD-ROM is also available within the US through the NASA Standing Order Service from the NASA Center for AeroSpace Information.

  2. RTO Technical Publications: A Quarterly Listing

    NASA Technical Reports Server (NTRS)

    2001-01-01

    This is a listing of recent unclassified RTO technical publications processed by the NASA Center for AeroSpace Information. Reports may be downloaded for free from the RTO website at http:/www.rta.nato.int or they may be purchased from the NASA Center for AeroSpace Information, 7121 Standard Drive, Hanover, MID 21076-1320 USA, phone 301-621-0390, fax 301-621-0134. Prices and order forms are available from the NASA STI website at http://www.sti.nasa.gov. An automatic distribution of unclassified RTO technical publications in CD-ROM is also available within the U.S. through the NASA Standing Order Service from the NASA Center for AeroSpace Information.

  3. RTO Technical Publications: A Quarterly Listing

    NASA Technical Reports Server (NTRS)

    2004-01-01

    This is a listing of recent unclassified RTO technical publications for April 1, 2004 through June 30, 2004, processed by the NASA Center for AeroSpace Information. Topics covered include: heat transfer and cooling in propulsion and power systems; assessment of operator functional state; microwaves; aerodynamics in solid rocket propulsion; command, control, communications and intelligence modeling; personal protective equipment against anti-personnel mine blast; and data fusion and visualization.

  4. Power systems development facility. Quarterly technical progress report, January 1, 1994--March 31, 1994

    SciTech Connect

    Not Available

    1994-07-01

    This quarterly technical progress report summarizes work completed during the last quarter of the Second Budget Period, January 1 through March 31, 1994, entitled {open_quotes}Hot Gas Cleanup Test Facility for Gasification and Pressurized Combustion.{close_quotes} The objective of this project is to evaluate hot gas particulate control technologies using coal-derived gas streams. This will entail the design, construction, installation, and use of a flexible test facility which can operate under realistic gasification and combustion conditions. The major particulate control device issues to be addressed include the integration of the particulate control devices into coal utilization systems, on-line cleaning techniques, chemical and thermal degradation of components, fatigue or structural failures, blinding, collection efficiency as a function of particle size, and scale-up of particulate control systems to commercial size.

  5. PFBC HGCU test facility technical progress report. First Quarter, CY 1994

    SciTech Connect

    Not Available

    1994-04-01

    This is the eighteenth Technical Progress Report submitted in connection with the cooperative agreement between the DOE and Ohio Power Company for the Tidd PFBC Hot Gas Clean Up Test Facility. During this quarter, the Tidd Hot Gas Clean Up System operated for 835 hours during six separate test runs. The system was starting into a seventh run at the end of the quarter. Highlights of this period are summarized below: the longest run during the quarter was approximately 333 hours; filter pressure drop was stable during all test runs this quarter using spoiling air to the primary cyclone upstream of the Advanced Particle Filter (APF); the tempering air system was commissioned this quarter which enabled the unit to operate at full load conditions while limiting the gas temperature in the APF to 1,400 F; during a portion of the one run, the tempering air was removed and the filter operated without problems up to 1,450 F; ash sampling was performed by Battelle personnel upstream and downstream of the APF and ash loading and particle size distribution data were obtained, a summary report is included; a hot area on the APF head was successfully repaired in service; a hot spot on the top of an expansion joint was successfully repaired by drilling holes from the inside of the pipe and pumping in refractory insulation; a corrosion inspection program for the HGCU system was issued giving recommendations for points to inspect; filter internal inspections following test runs 13 and 17 revealed a light coating (up to 1/4 inch thick) of residual ash on the candles and some ash bridging between the dust sheds and inner rows of candles. Data from these inspections are included with this report.

  6. RTO Technical Publications: A Quarterly Listing

    NASA Technical Reports Server (NTRS)

    2005-01-01

    This is a listing of recent unclassified RTO technical publications processed by the NASA Center for AeroSpace Information covering the period from July 1, 2005 to September 30, 2005; and available in the NASA Aeronautics and Space Database. Contents include: Aeroelastic Deformation: Adaptation of Wind Tunnel Measurement Concepts to Full-Scale Vehicle Flight Testing; Actively Controlling Buffet-Induced Excitations; Modelling and Simulation to Address NATO's New and Existing Military Requirements; Latency in Visionic Systems: Test Methods and Requirements; Personal Hearing Protection including Active Noise Reduction; Virtual Laboratory Enabling Collaborative Research in Applied Vehicle Technologies; A Method to Analyze Tail Buffet Loads of Aircraft; Particle Image Velocimetry Measurements to Evaluate the Effectiveness of Deck-Edge Columnar Vortex Generators on Aircraft Carriers; Introduction to Flight Test Engineering, Volume 14; Pathological Aspects and Associated Biodynamics in Aircraft Accident Investigation;

  7. Decontamination Systems Information and Research Program. Quarterly technical progress report, January 1--March 31, 1994

    SciTech Connect

    Not Available

    1994-05-01

    West Virginia University (WVU) and the US DOE Morgantown Energy Technology Center (METC) entered into a Cooperative Agreement on August 29, 1992 entitled ``Decontamination Systems Information and Research Programs.`` Stipulated within the Agreement is the requirement that WVU submit to METC a series of Technical Progress Reports on a quarterly basis. This report comprises the first Quarterly Technical Progress Report for Year 2 of the Agreement. This report reflects the progress and/or efforts performed on the sixteen (16) technical projects encompassed by the Year 2 Agreement for the period of January 1 through March 31, 1994. In situ bioremediation of chlorinated organic solvents; Microbial enrichment for enhancing in-situ biodegradation of hazardous organic wastes; Treatment of volatile organic compounds (VOCs) using biofilters; Drain-enhanced soil flushing (DESF) for organic contaminants removal; Chemical destruction of chlorinated organic compounds; Remediation of hazardous sites with steam reforming; Soil decontamination with a packed flotation column; Use of granular activated carbon columns for the simultaneous removal of organics, heavy metals, and radionuclides; Monolayer and multilayer self-assembled polyion films for gas-phase chemical sensors; Compact mercuric iodide detector technology development; Evaluation of IR and mass spectrometric techniques for on-site monitoring of volatile organic compounds; A systematic database of the state of hazardous waste clean-up technologies; Dust control methods for insitu nuclear and hazardous waste handling; Winfield Lock and Dam remediation; and Socio-economic assessment of alternative environmental restoration technologies.

  8. PFBC HGCU Test Facility. Technical progress report No. 24, Third quarter, CY 1995

    SciTech Connect

    1995-10-01

    This is the twenty-fourth and final Technical Progress Report submitted to the Department of Energy (DOE) in connection with the cooperative agreement between the DOE and Ohio Power Company for the Tidd PFBC Hot Gas Clean Up Test Facility. This report covers the work completed during the Third Quarter of CY 1995. All activity this quarter was directed toward the completion of the program final report. A draft copy of the final report was forwarded to DOE during this quarter, and DOE submitted their comments on the report to AEPSC. DOE requested that Westinghouse write an appendix to the report covering the performance of the fail-safe regenerator devices during Tad operation, and Westinghouse subsequently prepared the appendix. Additional DOE comments were incorporated into the report, and it will be issued in camera-ready form by the end of October, 1995, which is the program end date. Appendix 1 presents the results of filter candle posttest examination by Westinghouse performed on selected filter candles following final shutdown of the system.

  9. POC-scale testing of an advanced fine coal dewatering equipment/technique. Quarterly technical progress report 6, January--March 1996

    SciTech Connect

    Tao, D.; Groppo, J.G.; Parekh, B.K.

    1996-05-03

    Froth flotation technique is an effective and efficient process for recovering of ultra-fine clean coal. Economical dewatering of an ultra-fine clean coal product to a 20% level moisture will be an important step in successful implementation of the advanced cleaning processes. This project is a step in the Department of Energy`s program to show that ultra-clean coal could be effectively dewatered to 20% or lower moisture using either conventional or advanced dewatering techniques. The cost-sharing contract effort is for 36 months beginning September 30, 1994. This report discusses technical progress made during the quarter from January 1- March 31, 1996.

  10. Innovative Clean Coal Technology (ICCT): Demonstration of selective catalytic reduction (SCR) technology for the control of nitrogen oxide (NO{sub x}) emissions from high-sulfur coal-fired boilers. Technical progress report, third and fourth quarters 1994

    SciTech Connect

    1995-11-01

    The objective of this project is to demonstrate and evaluate commercially available selective catalytic reduction (SCR) catalysts from U.S., Japanese, and European catalyst suppliers on a high-sulfur U.S. Coal-fired boiler. SCR is a post-combustion nitrogen oxide (NO{sub x}) control technology that involves injecting ammonia into the flue gas generated from coal combustion in an electric utility boiler. The flue gas containing ammonia is then passed through a reactor that contains a specialized catalyst. In the presence of the catalyst, the ammonia reacts with NO{sub x} to form nitrogen and water vapor. Although SCR is widely practiced in Japan and European gas-, oil-, and low-sulfur coal-fired boilers, there are several technical uncertainties associated with applying SCR to U.S. coals. These uncertainties include: (1) potential catalyst deactivation due to poisoning by trace metal species present in U.S. coals that are not present in other fuels; (2) performance of the technology and effects on the balance-of-plant equipment in the presence of high amounts of SO{sub 2} and SO{sub 3}; performance of a wide variety of SCR catalyst compositions, geometries, and methods of manufacture under typical high-sulfur coal-fired utility operating conditions. These uncertainties are being explored by operating a series of small- scale SCR reactors and simultaneously exposing different SCR catalysts to flue gas derived from the combustion of high sulfur U.S. coal. The demonstration is being performed at Gulf Power Company`s Plant Crist Unit No. 5 (75 MW capacity) near Pensacola, Florida. The project is funded by the U.S. Department of Energy (DOE), Southern Company Services, Inc. (SCS on behalf of the entire Southern electric system), the Electric Power Research Institute (EPRI), and Ontario Hydro. SCS is the participant responsible for managing al aspects of this project. 1 ref., 69 figs., 45 tabs.

  11. Innovative Clean Coal Technology (ICCT): Demonstration of Selective Catalytic Reduction (SCR) technology for the control of nitrogen oxide (NO{sub x}) emissions from high-sulfur coal-fired boilers. Third quarterly technical progress report 1992

    SciTech Connect

    Not Available

    1992-11-01

    The objective of this project is to demonstrate and evaluate commercially available Selective Catalytic Reduction (SCR) catalysts from US, Japanese and European catalyst suppliers on a high-sulfur US coal-fired boiler. SCR is a post-combustion nitrogen oxide (NO{sub x}) control technology that involves injecting ammonia into the flue gas generated from coal combustion in an electric utility boiler. The flue gas containing ammonia is then passed through a reactor that contains a specialized catalyst. In the presence of the catalyst, the ammonia reacts with NO{sub x} to convert it to nitrogen and water vapor. Although SCR is widely practiced in Japan and Europe on gas-, oil-, and low-sulfur, coal-fired boilers, there are several technical uncertainties associated with applying SCR to US coals. These uncertainties include: (1) potential catalyst deactivation due to poisoning by trace metal species present in US coals that are not present in other fuels. (2) performance of the technology and effects on the balance-of-plant equipment in the presence of high amounts of SO{sub 2} and SO{sub 3} and (3) performance of a wide variety of SCR catalyst compositions, geometries and methods of manufacture under typical high-sulfur coal-fired utility operating conditions. These uncertainties will be explored by constructing a series of small- scale SCR reactors and simultaneously exposing different SCR catalysts to flue gas derived from the combustion of high-sulfur US coal. The demonstration will be performed at Gulf Power Company`s Plant Crist Unit No. 5 (75 MW capacity) near Pensacola, Florida.

  12. Innovative Clean Coal Technology (ICCT): Demonstration of selective catalytic reduction technology for the control of nitrogen oxide emissions from high-sulfur coal-fired boilers. First and second quarterly technical progress reports, [January--June 1995]. Final report

    SciTech Connect

    1995-12-31

    The objective of this project is to demonstrate and evaluate commercially available Selective Catalytic Reduction (SCR) catalysts from US, Japanese and European catalyst suppliers on a high-sulfur US coal-fired boiler. SCR is a post-combustion nitrogen oxide (NO{sub x}) control technology that involves injecting ammonia (NH{sub 3}) into the flue gas generated from coal combustion in an electric utility boiler. The flue gas containing ammonia is then passed through a reactor containing a specialized catalyst. In the presence of the catalyst, the ammonia reacts with NO{sub x} to convert it to nitrogen and water vapor. Although SCR is widely practiced in Japan and Europe on gas-, oil-, and low-sulfur coal-fired boilers, there are several technical uncertainties associated with applying SCR to US coals. These uncertainties include: (1) potential catalyst deactivation due to poisoning by trace metal species present in US coals that are not present in other fuels. (2) performance of the technology and effects on the balance-of-plant equipment in the presence of high amounts of SO{sub 2} and SO{sub 3}. (3) performance of a wide variety of SCR catalyst compositions, geometries, and methods of manufacture under typical high-sulfur coal-fired utility operating conditions. These uncertainties are being explored by operating a series of small-scale SCR reactors and simultaneously exposing different SCR catalysts to flue gas derived from the combustion of high sulfur US coal. The demonstration is being performed at Gulf Power Company`s Plant Crist Unit No. 5 (75 MW nameplate capacity) near Pensacola, Florida. The project is funded by the US Department of Energy (DOE), Southern Company Services, Inc. (SCS on behalf of the entire Southern electric system), the Electric Power Research Institute (EPRI), and Ontario Hydro. SCS is the participant responsible for managing all aspects of this project.

  13. Technical Data Catalog: Yucca Mountain Site Characterization Project. Quarterly supplement

    SciTech Connect

    1995-06-30

    This report presents reference information contained in the Yucca Mountain Project Automated Technical Data Tracking System. The Department of Energy is seeking to design and maintain a geologic repository for the disposal of high-level radioactive wastes. However, before this repository can be built, the DOE must first do a comprehensive site evaluation. This evaluation is subject to many regulations. This report fulfills the reporting requirements of the Site-Specific Procedural Agreement for Geologic Repository to develop and maintain a catalog of data which will be updated and provided to the Nuclear Regulatory Commission on a quarterly basis. This catalog contains: description of data; time, place, and method of acquisition; and where data may be examined.

  14. High Energy Density Physics technical quarterly, October--December 1994. Volume 3

    SciTech Connect

    1995-09-01

    The High Energy Density Physics Technical Quarterly (formerly the AGEX 2 Technical Quarterly) publishes short technical contributions on above ground experiments that use pulsed power and laser drivers. The Quarterly is intended to provide rapid exposure of timely technical ideas and results as well as a means for documenting High Energy Density Physics progress and scientific quality for the High Energy Density Physics community. Two articles are included in this volume. They are ``Simulation and Analysis of PEGII-25`` and ``Resistor Developments for Atlas Marx Modules``.

  15. PFBC HGCU Test Facility. Fourth quarterly technical progress report, CY 1992

    SciTech Connect

    Not Available

    1993-01-01

    This is the thirteenth Technical Progress Report submitted to the Department of Energy (DOE) in connection with the cooperative agreement between the DOE and Ohio Power Company for the Tidd PFBC Hot Gas Clean Up Test Facility. This report covers the period of work completed during the Fourth Quarter of CY 1992. The following are highlights of the activities that occurred during this report period: Initial operation of the Advanced Particle Filter (APF) occurred during this quarter. The following table summarizes the operating dates and times. HGCU ash lockhopper valve plugged with ash. Primary cyclone ash pluggage. Problems with the coal water paste. Unit restarted warm 13 hours later. HGCU expansion joint No. 7 leak in internal ply of bellows. Problems encountered during these initial tests included hot spots on the APP, backup cyclone and instrumentation spools, two breakdowns of the backpulse air compressor, pluggage of the APF hopper and ash removal system, failure (breakage) of 21 filter candles, leakage of the inner ply of one (1) expansion joint bellows, and numerous other smaller problems. These operating problems are discussed in detail in a subsequent section of this report. Following shutdown and equipment inspection in December, design modifications were initiated to correct the problems noted above. The system is scheduled to resume operation in March, 1993.

  16. Regulatory and technical reports (abstract index journal). Compilation for third quarter 1997, July--September

    SciTech Connect

    Stevenson, L.L.

    1998-01-01

    This compilation consists of bibliographic data and abstracts for the formal regulatory and technical reports issued by the US Nuclear Regulatory Commission (NRC) Staff and its contractors. It is NRC`s intention to publish this compilation quarterly and to cumulate it annually. This report contains the third quarter 1997 abstracts.

  17. SERI biofuels program. Quarterly technical report, second and third quarters, FY 1985

    SciTech Connect

    Bull, S.R.; Lowenstein, M.Z.; McIntosh, R.P.

    1985-07-01

    Highlights of progress accomplished during the second and third quarters of FY 1985 in the areas of aquatic species, anaerobic digestion and photobiological hydrogen production research are summarized. The following accomplishments were attained in aquatic species research: evaluation of the growth of marine species in desert saline waters; preliminary evaluation of potential gains in productivity from utilization of light modulation; determined the relationship between the initial carbohydrate accumulation and subsequent lipid synthesis in Ankistrodesmus; completed designs and analysis of three outdoor systems; completed evaluations on the use of immobilized systems for the production of fuels; completed economic and technical evaluation of two harvesting schemes for microalgae; and completed evaluation of macroalgal production concepts and submit research plan. In the area of anaerobic digestion research, the following tasks were accomplished: received final report on autohydrolysis; received final report on genetic engineering of methanogens; completed computerized data based on commercial anaerobic digesters; completed analysis of anaerobic digestion for energy and submitted draft white paper to DOE program managers; and made presentations on ''Anaerobic Digestion for Energy'' and ''Potential for Improvement of Anaerobic Digestion Technology'' to DOE program managers. In photobiological hydrogen production, program wrap-up was completed and a final draft of the program report was submitted.

  18. Clean Energy Innovation: Sources of Technical and Commercial Breakthroughs

    SciTech Connect

    Perry, T. D., IV; Miller, M.; Fleming, L.; Younge, K.; Newcomb, J.

    2011-03-01

    Low-carbon energy innovation is essential to combat climate change, promote economic competitiveness, and achieve energy security. Using U.S. patent data and additional patent-relevant data collected from the Internet, we map the landscape of low-carbon energy innovation in the United States since 1975. We isolate 10,603 renewable and 10,442 traditional energy patents and develop a database that characterizes proxy measures for technical and commercial impact, as measured by patent citations and Web presence, respectively. Regression models and multivariate simulations are used to compare the social, institutional, and geographic drivers of breakthrough clean energy innovation. Results indicate statistically significant effects of social, institutional, and geographic variables on technical and commercial impacts of patents and unique innovation trends between different energy technologies. We observe important differences between patent citations and Web presence of licensed and unlicensed patents, indicating the potential utility of using screened Web hits as a measure of commercial importance. We offer hypotheses for these revealed differences and suggest a research agenda with which to test these hypotheses. These preliminary findings indicate that leveraging empirical insights to better target research expenditures would augment the speed and scale of innovation and deployment of clean energy technologies.

  19. Power systems development facility. Quarterly technical progress report, July 1--September 30, 1993

    SciTech Connect

    Not Available

    1993-12-31

    This quarterly technical progress report summarizes work completed during the Second Quarter of the Second Budget Period, July 1 through September 30, 1993, under the Department of Energy (DOE) Cooperative Agreement No. DE-FC21-90MC25140 entitled ``Hot Gas Cleanup Test Facility for Gasification and Pressurized Combustion.`` The objective of this project is to evaluate hot gas particle control technologies using coal-derived gas streams. This will entail the design, construction, installation, and use of a flexible test facility which can operate under realistic gasification and combustion conditions. The major particulate control device issues to be addressed include the integration of the particulate control devices into coal utilization systems, on-line cleaning techniques, chemical and thermal degradation of components, fatigue or structural failures, blinding, collection efficiency as a function of particle size, and scaleup of particulate control systems to commercial size. The conceptual design of the facility was extended to include a within scope, phased expansion of the existing Hot Gas Cleanup Test Facility Cooperative Agreement to also address systems integration issues of hot particulate removal in advanced coal-based power generation systems. This expansion included the consideration of the following modules at the test facility in addition to the existing Transport Reactor gas source and Hot Gas Cleanup Units: Carbonizer/Pressurized Circulating Fluidized Bed Gas Source. Hot Gas Cleanup Units to mate to all gas streams; Combustion Gas Turbine; and Fuel Cell and associated gas treatment. This expansion to the Hot Gas Cleanup Test Facility is herein referred to as the Power Systems Development Facility (PSDF). The major emphasis during this reporting period was continuing the detailed design of the facility.

  20. Treatment of metal-laden hazardous wastes with advanced clean coal technology by-products. Quarterly report, November 1994--February 1995

    SciTech Connect

    1995-03-01

    This second quarterly report describes work during the second three months of the University of Pittsburgh`s (Pitt`s) project on the {open_quotes}Treatment of Metal-Laden Hazardous Wastes with Advanced Clean Coal Technology By-Products.{close_quotes} Participating with Pitt on this project are Dravo Lime Company (DLC), Mill Service, Inc. (MSI) and the Center for Hazardous Materials Research (CHMR). The report describes the activities of the project team during the reporting period. The principal work has focussed upon the acquisition of by-product samples and their initial analysis. Other efforts during the second quarter have been directed toward identifying the first hazardous waste samples and preparing for their treatment and analysis. Relatively little data has yet been collected. Major presentation of technical details and data will appear for the first time in the third quarterly report. The activity on the project during the second quarter of Phase One, as presented in the following sections, has fallen into seven areas: (1) Acquiring by-products, (2) Analyzing by-products, (3) Identifying, analyzing and treating suitable hazardous wastes, (4) Carrying out the quality assurance/quality control program, (5) Developing background, and (6) Initiating public relations

  1. PFBC HGCU Test Facility. Second quarterly technical progress report, CY 1993

    SciTech Connect

    Not Available

    1993-07-01

    This is the fifteenth Technical Progress Report submitted to the Department of Energy (DOE) in connection with the cooperative agreement between the DOE and Ohio Power Company for the Tidd Pressurized Fluidized Bed Combustion (PFBC) Hot Gas Clean Up Test Facility. This report covers the period of work completed during the Second Quarter of CY 1993.Work accomplished during the reporting period includes: the expansion joint heaters and control system were installed and tested. The system consists of 8 bellows heaters and 14 heaters on the adjacent piping. During initial testing, 11 of the 14 pipe and heaters failed due to overheating caused by control and installation problems; A pneumatically powered vibrator was installed in the APF manway nozzle to vibrate the hopper liner during back pulsing. This should eliminate any build-up on the pipes of the hopper; Two half capacity diesel driven back-up pulse air compressors were rented and installed; Installation of an emergency ash removal system was completed. The system enables ash to be removed via a line connected to the pipe between the outlet of the screw cooler and the inlet of the lockhopper system; Installation of the spoiling air line, valves, and metering orifice to the primary cyclone was completed; Numerous revisions were made to the Net 90 instrumentation and control system and the POPS data trending system to enhance system control and performance monitoring capability.

  2. OTEC support services. Quarterly technical progress report No. 7, 15 November 1979-14 February 1980

    SciTech Connect

    1980-02-01

    The technical engineering and management support services provided by VSE corporation for the Ocean Thermal Energy Conversion Program of the Ocean Systems Branch, Division of Central Solar Technology during this quarter are described. The seven tasks include (1) survey, analysis evaluation, and recommendation concerning program performance, (2) program technical monitoring, (3) development and implementation of methodology to identify and evaluate program alternatives, (4) technical assessments, (5) OTEC system integration, (6) environment and siting considerations; and (7) transmission subsystem considerations. (WHK)

  3. POC-scale testing of an advanced fine coal dewatering equipment/technique. Quarterly technical progress report, April 1996--June 1996

    SciTech Connect

    Tao, D.; Groppo, J.G.; Parekh, B.K.

    1996-07-31

    Froth flotation technique is an effective and efficient process for recovering of ultra-fine (minus 74 {mu}m) clean coal. Economical dewatering of an ultra-fine clean coal product to a 20 percent level moisture will be an important step in successful implementation of the advanced cleaning processes. This project is a step in the Department of Energy`s program to show that ultra-clean coal could be effectively dewatered to 20 percent or lower moisture using either conventional or advanced dewatering techniques. The cost sharing contract effort is for 36 months beginning September 30, 1994. This report discusses technical progress made during the quarter from April 1 - June 30, 1996.

  4. POC-scale testing of an advanced fine coal dewatering equipment/technique. Quarterly technical progress report, No. 4, July 1995--September 1995

    SciTech Connect

    Groppo, J.G.; Parekh, B.K.

    1995-11-06

    Froth flotation technique is an effective and efficient process for recovering of ultra-fine (minus 74 {mu}m) clean coal. Economical dewatering of an ultra-fine clean coal product to a 20 percent level moisture will be an important step in successful implementation of the advanced cleaning processes. This project is a step in the Department of Energy`s program to show that ultra-clean coal could be effectively dewatered to 20 percent or lower moisture using either conventional or advanced dewatering techniques. The cost-sharing contract effort is for 36 months beginning September 30, 1994. This report discusses technical progress made during the quarter from July 1 - September 29, 1995.

  5. POC-scale testing of an advanced fine coal dewatering equipment/technique. Quarterly technical progress report 2, January 1995--March 1995

    SciTech Connect

    Groppo, J.G.; Parekh, B.K.

    1995-05-05

    Froth flotation technique is an effective and efficient process for recovering of ultra-fine (minus 74 {mu}m) clean coal. Economical dewatering of an ultra-fine clean coal product to a 20 percent level moisture will be an important step in successful implementation of the advanced cleaning processes. This project is a step in the Department of Energy`s program to show that ultra-clean coal could be effectively dewatered to 20 percent or lower moisture using either conventional or advanced dewatering techniques. The cost-sharing contract effort is for 36 months beginning September 30, 1994. This report discusses technical progress made during the quarter from January 1 to March 31, 1995.

  6. Excimer laser annealing to fabricate low cost solar cells. Quarterly technical report No. 1, 26 March-30 June 1984

    SciTech Connect

    Not Available

    1984-07-01

    The objective of this research is to show whether or not pulsed excimer laser annealing (PELA) of ion-implanted junctions is a cost effective replacement for diffused junctions in fabricating crystalline silicon solar cells. The preliminary economic analysis completed during the first quarter of this program shows that the use of PELA to fabricate both the front junction and back surface field (BSF) would cost approximately 35 cents per peak watt (Wp), compared to a cost of 15 cents/Wp for diffusion, aluminum BSF and an extra cleaning step in the baseline process described by JPL. The cost advantage of the PELA process depends on improving the average cell efficiency from 14% to 16%, which would lower the overall cost of the module by about 15 cents/Wp. The technical goal of this research is to develop an optimized PELA process compatible with commercial production, and to demonstrate increased cell efficiency with sufficient product for adequate statistical analysis. During the first quarter of this program an excimer laser annealing station was set-up and made operational. The first experiment used 248 nm radiation to anneal phosphorus implants in polished and texture-etched silicon. Preliminary results showed that the PELA processed cells had overall efficiencies comparable to furnace annealed ion implanted controls, and that texture-etched material requires lower fluence for annealing than polished silicon. Process optimization will be carried out in the second quarter.

  7. High temperature packing test program. First quarterly technical progress report, October 1-December 26, 1981

    SciTech Connect

    Not Available

    1982-02-12

    The program was undertaken to improve the technical understanding of the performance of plunger packings in coal liquefaction pilot plant feed pumps. During the first quarter of FY 1982, visits were made to the H-Coal, EDS and SRC-I pilot plants, where technical discussions were held with maintenance and engineering personnel, and the maintenance records and work orders for the plunger pumps were reviewed. Technical discussions were held with engineering personnel at the manufacturing facilities of three plunger pump manufacturers' companies. Contracts and technical discussions with packing vendors were initiated. Design of the laboratory tests was started.

  8. Regulatory and technical reports: (Abstract index journal). Compilation for first quarter 1997, January--March

    SciTech Connect

    Sheehan, M.A.

    1997-06-01

    This compilation consists of bibliographic data and abstracts for the formal regulatory and technical reports issued by the U.S. Nuclear Regulatory Commission (NRC) Staff and its contractors. This compilation is published quarterly and cummulated annually. Reports consist of staff-originated reports, NRC-sponsored conference reports, NRC contractor-prepared reports, and international agreement reports.

  9. [Kelastic variable wall mining machine]. Ninth quarterly technical report, October 1, 1995--December 31, 1995

    SciTech Connect

    1995-12-31

    This is the Ninth Quarterly Technical Report of Grant Number DE-FG01-93CE15394 entitled Kelastic Variable Wall Mining Machine. This reporting period comprised a time extension which was requested and authorized by correspondence from the Department of Energy on August 9, 1995. The work described in this report was completed on the modified termination date.

  10. Offshore scientific and technical publications, February-July, Spring 1989. Quarterly report

    SciTech Connect

    Not Available

    1989-01-01

    The catalog lists all current (1987-1989) scientific and technical publications of the Offshore Minerals Management Program. The catalog is updated and released on a quarterly basis in winter, spring, summer, and fall. Publications available after July 21, 1989, will be listed in the next issue.

  11. Responsive copolymers for enhanced petroleum recovery. Quarterly technical progress report, March 22, 1993--June 22, 1993

    SciTech Connect

    McCormick, C.; Hester, R.

    1993-08-01

    The overall goal of this research is the development of advanced water-soluble copolymers for use in enhanced oil recovery which rely on reversible microheterogeneous associations for mobility control and reservoir conformance. Technical progress for the quarter is summarized for the following tasks: advanced copolymer syntheses; characterization of molecular structure of copolymers; and polymer solution rheology.

  12. SRC-1 Quarterly technical report, April-June 1980

    SciTech Connect

    Not Available

    1980-01-01

    The SRC-1 quarterly report has chapters on: an evaluation of current technologies for deashing coal liquids; domestic vendors of thick-wall pressure vessels; a comparative evaluation of GKT, Texaco and Shell-Koppers gasification processes (GKT is a modification of Koppers-Totzek and is recommended for reasons given); disposal or gasification of residues; evaluation of one or two slurry feed tanks; evaluation of one or two critical solvent deashing trains; analysis of causes of corrosion in the fractionating tower (chlorides and phenols); identifying and planning for pollution control in the demonstration plant; and characterizing waste center and monitoring its treatment. (LTN)

  13. Mechanism for Clastogenic Activity of Naphthalene. Quarterly Technical Progress Report

    SciTech Connect

    Buchholz, B. A.

    2016-02-05

    The project has two main goals: 1) Identify the types of adducts naphthalene (NA) forms with DNA and 2) determine whether adduct formation correlates with site selective tumor formation in defined subcompartments of the respiratory tract (respiratory and olfactory nasal epithelium and airways of mice, rats and rhesus monkeys). Five tasks are associated with the completion of the goals. Task 1: Contracting and Animal Use Approvals. IACUC and ACURO approvals are complete. The subcontract with UC Davis (UCD) was executed in December 2014. Task 2: Perform In Vitro Study for Goal 1. Rat and mouse samples exposures completed. Monkey samples need to be exposed in next quarter. Task 3: Perform In Vitro Study for Goal 2. Mouse and rat ex vivo exposures completed. Monkey samples need to be completed in the next quarter. Task 4: Sample Preparation and Analysis. Mouse and Rat Goal 2 samples completed. Monkey samples remain to be done for Goal 2. Rat samples completed for Goal 1. Mouse and Monkey samples for Goal 1 need to be completed. Task 5: Data Interpretation and Reporting. Poster will be presented at 2016 Society of Toxicology Meeting. Outline for paper on adduct formation complete and similar to poster for SOT meeting.

  14. Engineering development of advanced physical fine coal cleaning for premium fuel applications. Quarterly report, April 1--June 30, 1997

    SciTech Connect

    Moro, N.; Shields, G.L.; Smit, F.J.; Jha, M.C.

    1997-12-31

    The primary goal of this project is the engineering development of two advanced physical fine coal cleaning processes, column flotation and selective agglomeration, for premium fuel applications. The project scope includes laboratory research and bench-scale testing on six coals to optimize these processes, followed by the design, construction, and operation of a 2 t/hr process development unit (PDU). Accomplishments during the quarter are described on the following tasks and subtasks: Development of near-term applications (engineering development and dewatering studies); Engineering development of selective agglomeration (bench-scale testing and process scale-up); PDU and advanced column flotation module (coal selection and procurement and advanced flotation topical report); Selective agglomeration module (module operation and clean coal production with Hiawatha, Taggart, and Indiana 7 coals); Disposition of the PDU; and Project final report. Plans for next quarter are discussed and agglomeration results of the three tested coals are presented.

  15. Solid State Research Quarterly Technical Report 2003:2

    DTIC Science & Technology

    2003-10-17

    cleaned ultrasonically in trichlorethylene, acetone, and methanol ; etched in HCI and diluted HF, respectively, in order to remove oxides; and rinsed in... methanol . The surfaces of the wet wafers were then placed in contact with one another to allow liquid-surface tension to pull the wafers into atomic...match the natural crystalline facet of DAST were etched 0.5-1 pm deep into the SiO 2. A DAST-water- methanol -glycerin paste was deposited, pressing it

  16. Los Alamos National Laboratory Environmental Restoration Project quarterly technical report, April--June 1994

    SciTech Connect

    Not Available

    1994-08-18

    This quarterly report describes the technical status of activities in the Los Alamos National Laboratory Environmental Restoration (ER) Project. Each activity is identified by an activity data sheet number, a brief title describing the activity or the technical area where the activity is located, and the name of the project leader. The Hazardous and Solid Waste Amendments (HSWA) portion of the facility operating permit requires the submission of a technical progress report on a quarterly basis. This report, submitted to fulfill the permit`s requirement, summarizes the work performed and the results of sampling and analysis in the ER Project. Suspect waste found include: Radionuclides, high explosives, metals, solvents and organics. The data provided in this report have not been validated. These data are considered ``reviewed data.``

  17. Final Technical Report_Clean Energy Program_SLC-SELF

    SciTech Connect

    Henderson, Glenn; Coward, Doug

    2014-01-22

    This is the Final Technical Report for DOE's Energy Efficiency and Conservation Block Grant, Award No. DE-EE0003813, submitted by St. Lucie County, FL (prime recipient) and the Solar and Energy Loan Fund (SELF), the program's third-party administrator. SELF is a 501(c)(3) and a certified Community Development Financial Institution (CDFI). SELF is a community-based lending organization that operates the Clean Energy Loan Program, which focuses on improving the overall quality of life of underserved populations in Florida with an emphasis on home energy improvements and cost-effective renewable energy alternatives. SELF was launched in 2010 through the creation of the non-profit organization and with a $2.9 million Energy Efficiency and Conservation Block (EECBG) grant from the U.S. Department of Energy (DOE). SELF has its main office and headquarters in St. Lucie County, in the region known as the Treasure Coast in East-Central Florida. St. Lucie County received funding to create SELF as an independent non-profit institution, outside the control of local government. This was important for SELF to create its identity as an integral part of the business community and to help in its quest to become a Community Development Financial Institution (CDFI). This goal was accomplished in 2013, allowing SELF to focus on its mission to increase energy savings while serving markets that have struggled to find affordable financial assistance. These homeowners are most impacted by high energy costs. Energy costs are a disproportionate percentage of household expenses for low to moderate income (LMI) households. Electricity costs have been steadily rising in Florida by nearly 5% per year. Housing in LMI neighborhoods often includes older inefficient structures that further exacerbate the problem. Despite the many available clean energy solutions, most LMI property owners do not have the disposable income or equity in their homes necessary to afford the high upfront cost of energy

  18. Yucca Mountain Site Characterization Project: Technical data catalog,(quarterly supplement)

    SciTech Connect

    1993-03-31

    The June 1, 1985, Department of Energy (DOE)/Nuclear Regulatory Commission (NRC) Site-Specific Procedural Agreement for Geologic Repository Site Investigation and Characterization Program requires the DOE to develop and maintain a catalog of data which will be updated and provided to the NRC at least quarterly. This catalog is to include a description of the data; the time (date), place, and method of acquisition; and where it may be examined. The Yucca Mountain Site Characterization Project (YMP) Technical Data Catalog is published and distributed in accordance with the requirements of the Site-Specific Agreement. The YMP Technical Data Catalog is a report based on reference information contained in the YMP Automated Technical Data Tracking System (ATDT). The reference information is provided by Participants for data acquired or developed in support of the YMP. The Technical Data Catalog is updated quarterly and published in the month following the end of each quarter. A complete revision to the Catalog is published at the end of each fiscal year.

  19. HAMS II Quarterly Progress Report (Technical and Financial)

    DTIC Science & Technology

    2015-01-09

    Monitoring, Alert and Mitigation System (HAMS) program is progressing as expected with no technical issues to report. The program consists of two...outlined a research thrust entitled “Hypoxia Monitoring, Alert and Mitigation System” (HAMS) that was launched under the ONR BAA 14-001 Long Range Broad... alerting the user to the suspicion of growing hypoxia. Novel and non-traditional sensor locations and technologies will be investigated as they

  20. Quarterly technical progress report, February 1, 1996--April 30, 1996

    SciTech Connect

    1996-05-28

    This report from the Amarillo National REsource Center for PLutonium provides research highlights and provides information regarding the public dissemination of information. The center is a a scientific resource for information regarding the issues of the storage, disposition, potential utilization and transport of plutonium, high explosives, and other hazardous materials generated from nuclear weapons dismantlement. The center responds to informational needs and interpretation of technical and scientific data raised by interested parties and advisory groups. Also, research efforts are carried out on remedial action programs and biological/agricultural studies.

  1. Nuclear magnetic resonance studies of granular flows: Technical progress report, quarter ending 09/30/93

    SciTech Connect

    Not Available

    1993-10-27

    This Technical Progress Report for the quarter ending 09/30/93 describes work on two tasks which are part of nuclear magnetic resonance studies of granular flows. (1) Research has been directed toward improving concentration measurements under reasonably fast conditions. (2) The process continues of obtaining comprehensive velocity, concentration, and diffusion information at several angular velocities of the cylinder for seeds (mustard, sesame, and sunflower seeds) flowing in a half-filled cylinder.

  2. Quarterly technical progress report, October 1-December 30, 1983

    SciTech Connect

    Not Available

    1984-04-01

    Several new initiatives were begun in coal preparation, including a project to develop a liquid CO/sub 2/ coalescence process that will produce a superclean coal containing less than 1% ash. Another new project in this area is focusing on chemical coal cleaning for the removal of harmful trace elements, such as arsenic, lead, and zinc. Milestones were reached in both of our major electron beam flue gas cleanup projects. In the area of coal-water mixtures, our major industrial contracts are now approaching critical milestones. The analysis of our in-house combustion testing of micronized coal-water mixtures in PETC's 700-horsepower oil-designed boiler has been completed. By reducing the coal particle size from 90% minus 200 mesh down to 87% minus 19 microns, the carbon conversion efficiency increased from a level of 96% to 98%. Combustion tests with a commercially available CWM showed that combustion air enriched to 23% oxygen reduced the needed air preheat temperature from 370/sup 0/ to 200/sup 0/F. Work also got underway in the new projects selected last summer to investigate advanced direct liquefaction processes. At Kerr-McGee, three scoping runs on their 350 pound/day integrated bench-scale unit were successfully completed. The objective of these runs was to evaluate subbituminous coal process options in terms of catalyst performance, distillate yields, and generation of coke precursors. Cities Service began its project on the characterization of hydrogen donor solvents in two-stage liquefaction. 7 figures, 33 tables.

  3. Technical data base quarterly report, April--June 1992; Yucca Mountain Site Characterization Project

    SciTech Connect

    1992-09-01

    The acquisition and development of technical data are activities that provide the information base from which the Yucca mountain Site will be characterized and may P-ventually be licensed as a high-level waste repository. The Project Technical Data Base (TDB) is the repository for the regional and site-specific technical data required in intermediate and license application analyses and models. The TDB Quarterly Report provides the mechanism for identifying technical data currently available from the Project TDB. Due to the variety of scientific information generated by YMP activities, the Project TDB consists of three components, each designed to store specific types of data. The Site and Engineering Properties Data Base (SEPDB) maintains technical data best stored in a tabular format. The Geographic Nodal Information Study and Evaluation System (GENISES), which is the Geographic Information System (GIS) component of the Project TDB, maintains spatial or map-like data. The Geologic and Engineering Materials Bibliography of Chemical Species (GEMBOCHS) data base maintains thermodynamic/geochemical data needed to support geochemical reaction models involving the waste package and repository geochemical environment. Each of these data bases are addressed independently within the TDB Quarterly Report.

  4. PFBC HGCU Test facility. Technical progress report, Fourth quarter, CY 1994

    SciTech Connect

    1995-01-01

    During this quarter, the Tidd Hot Gas Clean Up System completed a 691-hour test run which began during the third quarter. Table 1 summarizes all test runs since initial operation. Following this test run the system was shut down and the filter opened for inspection and recandling. The system remained out of service during the remainder of the quarter. In addition to monitoring and evaluating the performance of the HGCU system during testing, engineering effort was devoted to posttest inspection of the APF (Advanced Particle Filter) and evaluation of the effects of totally spoiling the primary cyclone. In addition, the authors worked with Westinghouse in the selection of replacement candles that were installed during the fourth quarter. During the unit outage this quarter, the primary cyclone upstream of the APF was modified to force all of the ash to pass through the cyclone and enter the APF without using spoiling air. Appendices to this report describe the dust shroud support strap design; an analysis of the effect of support-transferred vibrations on the failure of ceramic candle filters; the Tidd APF operation; the Tidd APF boroscope inspection; a general inspection of Tidd filter internals; tally of Tidd filters; ash formations in the W-APF-October 1994 post-test inspection; characterization of the as-manufactured and PFBC-exposed 3M CVI-SiC composite filter matrix; strength characterization of the first and second generation candle filters after 1,705 hours of PFBC operation at Tidd; and filters used in the December 1994 recandling effort at Tidd.

  5. Development of an automatic heliostat cleaning system. Final technical report

    SciTech Connect

    Tremblay, P.; Poulin, E.

    1980-12-01

    An automatic washing system was designed consisting of a water treatment system, a pressurized underground water distribution system, an automatic spray washing module for each heliostat, a water collection system, and appropriate controls to operate this equipment. In order to determine the required values for the various washing parameters, a series of washing tests was undertaken in which mirrors were soiled and then cleaned by a high pressure water spray. Reflectivity was measured for the clean, soiled and washed conditions to determine the effectiveness of the cleaning. A heliostat spray module was constructed and operated mainly to obtain information on the mechanical operation of one concept. This testing showed that this system was generally satisfactory, but did show some areas for improvement. Water distribution and waste water systems were designed and evaluated with the main conclusion that conventional waste water collection is complex and the most expensive part of the system. The total system is shown to be cost effective if site meteorological conditions do not supply a large number of cycles of natural cleaning occurrences. Continued development of this concept by constructing a small scale washing system within an existing heliostat field is recommended.

  6. West Hackberry Tertiary Project. Quarterly technical progress report, January 1, 1996--March 31, 1996

    SciTech Connect

    Gillham, T.; Cerveny, B.; Turek, E.

    1996-04-10

    The goal of the West Hackberry Tertiary Project is to demonstrate the technical and economic feasibility of combining air injection with the Double Displacement Process for tertiary oil recovery. The Double Displacement Process is the gas displacement of a water invaded oil column for the purpose of recovering oil through gravity drainage. The novel aspect of this project is the use of air as the injection fluid. The target reservoir for the project is the Camerina C-1,2,3 sand located on the West Flank of West Hackberry Field in Cameron Parish, Louisiana. If successful, this project will demonstrate that the use of air injection in the Double Displacement Process can economically recover oil in reservoirs where tertiary oil recovery is presently uneconomic. The first quarter of 1996 was outstanding both in terms of volume of air injected and low cost operations. More air was injected during this quarter than in any preceding quarter. The compressors experienced much improved run time with minimal repairs. Low operating costs resulted from no repairs required for injection or production wells. A discussion of the following topics are contained herein: (1) performance summary for the injection and production wells, (2) air compressor operations, (3) updated bottom hole pressure data, (4) technology transfer activities and (5) plans for the upcoming quarter.

  7. Technical Support Project for Cleaning Up Contaminated Sites - Expertise Directory

    EPA Pesticide Factsheets

    This directory is searchable and provides a snapshot of the various types of expertise possessed by the current members of the three Technical Support Project forums. It is based on input provided by the members themselves.

  8. Ultrasonic cleaning as a replacement for a chlorofluorocarbon-based system. Technical report

    SciTech Connect

    Kranz, P.B.; Gardner-Clayson, T.; Malinowski, K.C.; Schaab, T.D.; Stadelmaier, J.E.

    1993-11-01

    This report describes the technical and economic evaluation of the replacement of a vapor degreasing system with an ultrasonic cleaning system to clean stainless steel components. A heated inorganic water-based cleaning fluid was utilized in lieu of a chlorofluorocarbon (CFC, freon) resulting in a significant reduction in the generation of fugitive volatile emissions. The objective of this evaluation was to comparatively analyze the technical and economic advantages of employing an ultrasonic cleaning system for reducing both the use and generation of hazardous materials associated with conventional CFC usage. Through the installation of an ultrasonic cleaning system, fugitive emissions have been significantly curtailed. Volatile emissions are estimated to be reduced 68% over the period 1990 to 1992. The technology substitution did not adversely affect product quality, although processing time was increased. No parts have been rejected for cleanliness by customers from either cleaning system, and there have been no consumer complaints. Throughput in terms of parts/cycle for the freon system was comparable to the ultrasonic cleaning system. Raw material cost savings are substantial for the ultrasonic cleaning system.

  9. Heber geothermal binary demonstration project quarterly technical progress report, October 1, 1982--December 31, 1982

    SciTech Connect

    Lacy, R.G.; Allen, R.F.; Dixon, J.R.; Hsiao, W.P.; Liparidis, G.S.; Lombard, G.L.; Nelson, T.T.; Van De Mark, G.D.

    1983-05-01

    The purpose of this quarterly technical progress report is to document work completed on the nominal 65 Megawatt (Mwe gross) Heber Geothermal Binary Demonstration Project, located at Heber, California, during the period of October 1, 1982--December 31, 1982. The work was performed by San Diego Gas and Electric Company under the support and cooperation of the U.S. Department of Energy, the Electric Power Research Institute, the Imperial Irrigation District, the California Department of Water Resources, and the Southern California Edison Company. Topics covered in this quarterly report include progress made in the areas of Wells and Fluid Production and Injection Systems, Power Plant Design and Construction, Power Plant Demonstration, and Data Acquisition and Dissemination.

  10. Heber geothermal binary demonstration project quarterly technical progress report, July 1, 1981--September 30, 1981

    SciTech Connect

    Lacy, R.G.; Allen, R.F.; Alsup, R.A.; Liparidis, G.S.; Van De Mark, G.D.

    1983-08-01

    The purpose of this quarterly technical progress report is to document work completed on the nominal 65 Megawatt (Mwe gross) Heber Geothermal Binary Demonstration Project, located at Heber, California, during the period of July 1, 1981, through September 30, 1981. The work was performed by San Diego Gas and Electric Company under the support and cooperation of the US Department of Energy, the Electric Power Research Institute, the Imperial Irrigation District, the California Department of Water Resources, and the Southern California Edison Company. Topics covered in this quarterly report include progress made in the areas of Wells and Fluid production and Injection Systems, Power Plant Design and Construction, Power Plant Demonstration, and Data Acquisition and Dissemination.

  11. MHD Integrated Topping Cycle Project. Eighteenth quarterly technical progress report, November 1, 1991--January 31, 1992

    SciTech Connect

    Not Available

    1992-07-01

    This eighteenth quarterly technical progress report of the MHD Integrated Topping cycle Project presents the accomplishments during the period November 1, 1991 to January 31, 1992. The precombustor is fully assembled. Manufacturing of all slagging stage components has been completed. All cooling panels were welded in place and the panel/shell gap was filled with RTV. Final combustor assembly is in progress. The low pressure cooling subsystem (LPCS) was delivered to the CDIF. Second stage brazing issues were resolved. The construction of the two anode power cabinets was completed.

  12. Bench-scale testing of the micronized magnetite process. Third quarterly technical progress report, January 1995--March 1995

    SciTech Connect

    1995-04-29

    The major focus of the project, which is scheduled to occur through December 1995, will be to install and test a 500{number_sign}/hr. fine-coal cleaning circuit at DOE`s Process Research Facility (PRF), located at the Pittsburgh Energy Technology Center (PETC). The circuit will utilize an extremely fine, micron-sized magnetite media and small diameter cyclones to make efficient density separations on minus-28-Mesh coal. The overall objectives of the project are to: Determine the effects of operating time on the characteristics of the recirculating medium in a continuous integrated processing circuit, and subsequently, the sensitivity of cyclone separation performance to the quality of the recirculating medium; and determine the technical and economic feasibility of various unit operations and systems in optimizing the separation and recovery of the micronized magnetite from the coal products. This report contains a short discussion of the project description, objectives, budget, schedule, and teaming arrangement. The final section contains an outline of the specific project goals for the next quarterly reporting period.

  13. Projects at the Component Development and Integration Facility. Quarterly technical progress report, July 1--September 30, 1993

    SciTech Connect

    Not Available

    1993-12-31

    This quarterly technical progress report presents progress on the projects at the Component Development and Integration Facility (CDIF) during the first quarter of FY94. The CDIF is a major US Department of Energy test facility in Butte, Montana, operated by MSE, Inc. Projects in progress include: MHD Proof-of-Concept project; mine waste technology pilot program; plasma projects; resource recovery project; sodium sulfide/ferrous sulfate project; soil washing project; and spray casting project.

  14. Projects at the Component Development and Integration Facility. Quarterly technical progress report, April 1--June 30, 1993

    SciTech Connect

    Not Available

    1993-12-01

    This quarterly technical progress report presents progress on the projects at the Component Development and Integration Facility (CDIF) during the third quarter of FY93. The CDIF is a major US Department of Energy test facility in Butte, Montana, operated by MSE, Inc. Projects in progress include: MHD Proof-of-Concept Project; Mine Waste Technology Program; Plasma Projects; Resource Recovery Project; Sodium Sulfide/Ferrous Sulfate Project; Soil Washing Project; and Spray Casting Project.

  15. Projects at the Component Development and Integration Facility. Quarterly technical progress report, January 1, 1994--March 31, 1994

    SciTech Connect

    Not Available

    1994-08-01

    This quarterly technical progress report presents progress on the projects at the Component Development and Integration Facility (CDIF) during the second quarter of FY94. The CDIF is a major US Department of Energy test facility in Butte, Montana, operated by MSE, Inc. Projects in progress include: Biomass Remediation Project; Heavy Metal-Contaminated Soil Project; MHD Shutdown; Mine Waste Technology Pilot Program; Plasma Projects; Resource Recovery Project; Sodium Sulfide/Ferrous Sulfate Project; and Spray Casting Project.

  16. EDIN-USVI Clean Energy Quarterly: Volume 2, Issue 1, June 2012 (Newsletter)

    SciTech Connect

    Not Available

    2012-06-01

    This quarterly newsletter provides timely news and information about the plans and progress of the Energy Development in Island Nations-U.S. Virgin Islands pilot project, including significant events and milestones, work undertaken by each of the working groups, and project-related technology deployment efforts.

  17. EDIN-USVI Clean Energy Quarterly: Volume 1, Issue 3, September 2011 (Newsletter)

    SciTech Connect

    Not Available

    2011-09-01

    This quarterly newsletter provides timely news and information about the plans and progress of the Energy Development in Island Nations-U.S. Virgin Islands pilot project, including significant events and milestones, work undertaken by each of the five working groups, and project-related renewable energy and energy efficiency educational outreach and technology deployment efforts.

  18. Precombustion removal of hazardous air pollutant precursors. Third quarterly technical progress report, April 1, 1996--June 30, 1996

    SciTech Connect

    1996-07-19

    This project involves the development of an optimized, bench-scale processing circuit capable of efficiently removing trace elements from run-of-mine coals. The optimized circuit will be developed using characterization data obtained from detailed washability studies and release analyses tests conducted with several eastern US coals. The optimized circuit will incorporate a variety of conventional and advanced coal cleaning processes which are believed to be the most cost-effective and commercially viable. The coal products from the optimized circuit will be further treated with complexing agents specifically designed to extract organometallic trace elements that are difficult to remove by physical cleaning operations. Finally, innovative bioremediation schemes will be investigated as a means of controlling the release of trace elements from the process waste streams. Emphasis has been placed on the development of a processing circuit which maximizes the rejection of trace elements, minimizes the production of coal fines which are costly to process and less marketable, and minimizes the downstream impacts of the process waste streams on the environment. During the past quarter, the project work plan and all associated technical/management reports were successfully approved. Activities associated with the selection and acquisition of all three base coal samples have also been completed. Characterization work is continuing to move ahead at an accelerated pace in both Subtask 3.2--Washability Analysis and Subtask 3.3-- Flotation Release Analyses. In addition, mineralogical analyses are underway as part of the characterization work. In Task 4--Bench-Scale Testing, the experimental program is now well underway to assess the trace element cleanability of the Pittsburgh No. 8 coal. Effort has also been initiated under Task 4--Toxics Fate Studies to identify viable methods for controlling the release of trace metals from refuse samples for the Pittsburgh No. 8 seam.

  19. Sonic enhancement of physical and chemical cleaning of coal: Fossil energy quarterly report, January 1, 1988--March 31, 1988

    SciTech Connect

    Buttermore, W.H.; Slomka, B.J.; Dawson, M.R.

    1988-05-01

    Research efforts during this quarter involved the completion of laboratory tests to determine the effects of lower frequencies on the sonic enhancement of physical coal cleaning processes. Ash and sulfur analyses were completed for 136 coal samples sonicated by using low-frequency transducers supplied by the Raytheon Company. In these tests, the frequency range from 2.0 to 10.0 kHz was examined for both near-field and directed-wave techniques. Also, the effects of exposure to intense cavitation were examined for improvement of gravity-controlled and surface-controlled coal cleaning methods. The most beneficial results were obtained for gravity-controlled cleaning of 8 by 100 mesh Illinois No. 6 coal by exposure to pulsed, non-cavitating, near-field sonic energy at a frequency of 9.0 kHz. Comparing results of identical sink-float tests of unsonicated and sonicated coal, float recovery was increased by sonication from 67.9% to 71.2%, while the ash content of the float was reduced from 10.0% to 9.0%. As in previous tests with this Illinois seam coal, no significant effect on sulfur content was observed as a result of sonication. 3 refs., 18 figs., 6 tabs.

  20. TECHNICAL APPROACHES TO CHARACTERIZING AND CLEANING UP BROWNFIELDS SITES: GUIDANCE DOCUMENT

    EPA Science Inventory

    NRMRL-CIN-1741 SAIC. Technical Approaches to Characterizing and Cleaning up Brownfields Sites. EPA/625/R/00/009 (NTIS PB2002-105021) , Available: 68-C7-0011. The guidance document gives assistance to communities, decision-makers, states and municipalities, academia, and the p...

  1. Advanced physical coal cleaning to comply with potential air toxic regulations. Quarterly report, 1 March 1995--31 May 1995

    SciTech Connect

    Honaker, R.Q.; Paul, B.C.; Mohanty, M.K.; Wang, D.

    1995-12-31

    Studies have indicated that the potentially hazardous trace elements found in coal have a strong affinity for coal pyrite. Thus, by maximizing the rejection of pyrite, one can minimize the trace element content of a given coal while also reducing sulfur emissions. The pyrite in most Illinois Basin coals, however, is finely disseminated within the coal matrix. Therefore, to remove the pyrite using physical coal cleaning techniques, the pyrite must be liberated by grinding the coal to ultrafine particle sizes. Fortunately, the coals being fed to pulverized coal boilers (PCB) are already ground to a very fine size, i.e., 70% passing 200 mesh. Therefore, this research project will investigate the use of advanced fine coal cleaning technologies for cleaning PCB feed as a compliance strategy. Work in this quarter has focused on the processing of a run-of-mine coal sample collected from Amax Coal Company`s Delta Coal mine using column flotation and an enhanced gravity separator as separate units and in circuitry arrangements. The {minus}60 mesh run-of-mine sample having an ash content of about 22% was cleaned to 6% while achieving a very high energy recovery of about 87% and a sulfur rejection value of 53% in a single stage column flotation operation. Enhanced gravity treatment is believed to be providing excellent total sulfur rejection values, although with inferior ash rejection for the {minus}400 mesh size fraction. The circuitry arrangement with the Falcon concentrator as the primary cleaner followed by the Packed-Column resulted in an excellent ash rejection performance, which out performed the release analysis. Trace element analyses of the samples collected from these tests will be conducted during the next report period.

  2. Advanced physical coal cleaning to comply with potential air toxic regulations. Quarterly report, 1 December 1994--28 February 1995

    SciTech Connect

    Honaker, R.Q.; Paul, B.C.; Wang, D.

    1995-12-31

    Studies have indicated that the potentially hazardous trace elements found in coal have a strong affinity for coal pyrite. Thus, by maximizing the rejection of pyrite, one can minimize the trace element content of a given coal while also reducing sulfur emissions. The pyrite in most Illinois Basin coals, however, is finely disseminated within the coal matrix. Therefore, to remove the pyrite using physical coal cleaning techniques, the pyrite must be liberated by grinding the coal to ultrafine particle sizes. Fortunately, the coals being fed to pulverized coal boilers (PCB) are already ground to a very fine size, i.e., 70% passing 200 mesh. Therefore, this research project will investigate the use of advanced fine coal cleaning technologies for cleaning PCB feed as a compliance strategy. Work in this quarter has focused on the processing of a PCB feed sample collected from Central Illinois Power`s Newton Power Station using column flotation and an enhanced gravity separator as separate units and in a circuitry arrangement. The PCB feed sample having a low ash content of about 12% was further cleaned to 6% while achieving a very high energy recovery of about 90% in a single stage column flotation operation. Enhanced gravity treatment is believed to be providing excellent total sulfur rejection values, although with inferior ash rejection for the {minus}400 mesh size fraction. The circuitry arrangement with the Falcon concentrator as the primary cleaner followed by the Microcel column resulted in an excellent ash rejection performance, which out performed the release analysis. Trace element analyses of the samples collected from these tests will be conducted during the next report period.

  3. Separation of flue-gas scrubber sludge into marketable products. Third year, second quarterly technical progress report, December 1, 1995--February 29, 1996 (Quarter {number_sign}10)

    SciTech Connect

    Kawatra, S.K.; Eisele, T.C.

    1996-03-01

    To reduce their sulfur emissions, many coal-fired electric power plants use wet flue-gas scrubbers. These scrubbers convert sulfur oxides into solid sulfate and sulfite sludge, which must then be disposed of. Knowledge of scrubber sludge characteristics is necessary for the development of purification technologies which will make it possible to directly utilize scrubber sludges rather than landfilling them. This project is studying the use of minimal-reagent froth flotation as the purification process, using the surface properties of the particles of unreacted limestone to remove them and their associated impurities from the material, leaving a purified calcium sulfite/gypsum product. In the current quarter, research was focused on two different areas. The first part of this quarter the optimization of the feed slurry percent solids for the two inch water-only cyclone was completed. The optimization of the vortex finder, spigot diameter and inlet feed pressure was completed in the previous quarter. The second part of this quarter began the investigation of why water-only cycloning helps froth flotation performance. The hypothesis is that water-only cycloning scrubs the surface of the unreacted limestone. This scrubbing effect provides a clean calcium carbonate surface, which results in better flotation reagent adsorption. This study used the scanning electron microscope to investigate the surface of the unreacted limestone particles.

  4. Treatment of metal-laden hazardous wastes with advanced clean coal technology by-products. Quarterly report, March 30, 1996--June 30, 1996

    SciTech Connect

    Cobb, J.T. Jr.; Neufeld, R.D.; Blachere, J.R.

    1998-04-01

    Progress is described on the use of by-products form clean coal technologies for the treatment of hazardous wastes. During the third quarter of Phase 2, work continued on evaluating Phase 1 samples (including evaluation of a seventh waste), conducting scholarly work, preparing for field work, preparing and delivering presentations, and making additional outside contacts.

  5. Characterization of available coals from Illinois mines. [Quarterly] technical report, March 1, 1993--May 31, 1993

    SciTech Connect

    Demir, I.; Harvey, R.D.; Ruch, R.R.; Chaven, C.; Damberger, H.H.; Steele, J.D.; Frankie, W.T.

    1993-09-01

    The goal of this project is to characterize marketed coals from Illinois mines. The characterization parameters that are being determined include the concentration of all trace and minor elements that are of environmental concern, proximate and ultimate compositions, the pyrite size distribution and maceral association, preliminary froth flotation cleanability, slagging and fouling characteristics relevant to the coal`s behavior in utility boilers, chlorine forms and distribution, and certain gasification and rheology parameters. During the third quarter, the trace element data base on Illinois coals was fully checked and edited. The determinations of the trace and minor element contents and proximate and ultimate compositions of the 34 project samples were largely completed. The pyritic S content, still high in some of the marketed samples, could be reduced further in the samples by advanced physical cleaning techniques. Results from the analysis of all 34 samples for Ba, Hg, Mn, and Zr indicate that these elements are primarily or partly associated with mineral matter and, therefore, their concentrations could also be reduced further in the product coals by advanced physical cleaning techniques. A sequential extraction of Cl from two of the samples revealed that regardless of the initial chlorine concentration of the two coals, the total combined amount of chlorine extracted by water, ammonia, and sodium hydroxide is about the same.

  6. Decontamination Systems Information and Research Program. Quarterly technical progress report, January 1--March 31, 1993

    SciTech Connect

    Not Available

    1993-04-01

    This reports reports the progress/efforts performed on six technical projects: 1. systematic assessment of the state of hazardous waste clean-up technologies; 2. site remediation technologies (SRT):drain- enhanced soil flushing for organic contaminants removal; 3. SRT: in situ bio-remediation of organic contaminants; 4. excavation systems for hazardous waste sites: dust control methods for in-situ nuclear waste handling; 5. chemical destruction of polychlorinated biphenyls; and 6. development of organic sensors: monolayer and multilayer self-assembled films for chemical sensors.

  7. Coal liquefaction process streams characterization and evaluation. Quarterly technical progress report, July 1--September 30, 1992

    SciTech Connect

    Brandes, S.D.; Winschel, R.A.; Burke, F.P.

    1992-11-01

    This is the twelfth Quarterly Technical Progress Report under DOE Contract DE-AC22-89PC89883. Major topics reported are: Summaries of the final reports produced by Lehigh University, West Virginia University, and Vander Sande Associates under the Participants Program are presented. Analytical data produced by CONSOL are provided in Appendix I for all samples employed in the Participants Program and issued with the samples to research groups in the Participants Program. A paper was presented at the 1992 US Department of Energy Pittsburgh Energy Technology Center Liquefaction Contractors` Review Conference, held in Pittsburgh September 23--24, 1992, entitled ``The Chemical Nature of Coal Liquid Resids and the Implications for Process Development``. It appears as Appendix 2 in this report.

  8. MHD Integrated Topping Cycle Project. Seventeenth quarterly technical progress report, August 1, 1991--October 31, 1991

    SciTech Connect

    Not Available

    1992-07-01

    This seventeenth quarterly technical progress report of the MHD Integrated Topping Cycle Project presents the accomplishments during the period August 1, 1991 to October 31, 1991. Manufacturing of the prototypical combustor pressure shell has been completed including leak, proof, and assembly fit checking. Manufacturing of forty-five cooling panels was also completed including leak, proof, and flow testing. All precombustor internal components (combustion can baffle and swirl box) were received and checked, and integration of the components was initiated. A decision was made regarding the primary and backup designs for the 1A4 channel. The assembly of the channel related prototypical hardware continued. The cathode wall electrical wiring is now complete. The mechanical design of the diffuser has been completed.

  9. Regulatory and technical reports (abstract index journal). Volume 20, No. 2: Compilation for second quarter April--June 1995

    SciTech Connect

    1995-09-01

    This compilation consists of bibliographic data and abstracts for the formal regulatory and technical reports issued by the U.S. Nuclear Regulatory Commission (NRC) Staff and its contractors. It is NRC`s intention to publish this compilation quarterly and to cumulate it annually.

  10. Project LIFE--Language Improvement to Facilitate Education. (Technical Progress Report; Third Quarter; March 1, 1974-May 31, 1974).

    ERIC Educational Resources Information Center

    National Foundation for the Improvement of Education, Washington, DC.

    Reported is the third quarter, fiscal year 1974 (March 1, 1974-May 31, 1974) technical progress of Project LIFE (Language Improvement to Facilitate Education), toward developing an instructional system in which filmstrips in the areas of perceptual training, perceptual thinking, and language/reading are used to assist hearing impaired children in…

  11. Characterization and supply of coal based fuels. Quarterly technical progress report, February 1, 1987--April 30, 1987

    SciTech Connect

    Not Available

    1987-07-01

    Contract objectives are as follows: develop fuel specifications to serve combustor requirements; select coals having appropriate compositional and quality characteristics as well as an economically attractive reserve base; provide quality assurance for both the parent coals and the fuel forms; and deliver premium coal-based fuels to combustor developers as needed for their contract work. During the second quarter of this contract effort, the primary activities were involved with: continuation of development of fuel requirements (i.e., specifications, quantities, schedule); acquisition and bench-scale characterization of candidate coal samples; selection of coal water slurry fuel manufacturer; procurement of parent coal for fuel production; deep cleaning by froth flotation of parent coal; production of solid fuel (i.e., size reduction of deep cleaned parent coal) and delivery to combustors/experimenters; production of slurry fuel and delivery to combustors/experimenters; and completion of Final Version of First Quarterly Report.

  12. Technical note: Effects of attachment of hind teats before cleaning and attachment of front teats on milking characteristics in automatic milking systems.

    PubMed

    Besier, J; Schüpbach-Regula, G; Wellnitz, O; Bruckmaier, R M

    2017-04-01

    Milking characteristics differ between the 4 quarters of a dairy cow udder. In particular, milking time is mostly prolonged in hind quarters compared with front quarters because of the usually higher amount of stored milk. The standard milking routine (STDMR) in both conventional and automatic milking systems (AMS) consists of teat preparation of all 4 quarters, followed by attachment of the 4 teat cups, regardless of the distribution of milk between quarters. In the current study, an alternative teat preparation and milking routine (ALTMR) in AMS was tested, which consisted of cleaning and starting the milking of hind teats before cleaning and attachment of front teats. The hypothesis was based on the fact that hind quarters have usually a longer milking time than front quarters. Starting the milking of hind quarters while the front teats are being cleaned may reduce the difference in the end of milking between front and hind quarters and thus reduce total milking time. Both routines were tested on 5 Swedish dairy farms equipped with AMS in a 4-wk experiment in which treatments were alternated weekly. Total milk yield did not differ between treatments. Machine-on time (MOT) was longer in ALTMR than in STDMR because the difference in milking time between hind and front quarters was less than the time needed to prepare the front teats. However, the longer MOT in ALTMR was compensated by a shorter total preparation time, including the attachment of the first teat cup, as only the hind teats (instead of all 4 teats) were cleaned before milking was started. This resulted in a similar total milking time from start of cleaning of the first quarter until the end of milking of the last quarter in both treatments. Because of the prolonged MOT, average milk flow rate was lower in ALTMR than STDMR. Peak flow rate was higher in ALTMR than STDMR, but only in teat cups 1 (first attached, hind quarter) and 3 (third attached, front quarter), whereas main milk flow was higher in

  13. Advanced emissions control development program. Quarterly technical progress report No. 9, October 1--December 31, 1996

    SciTech Connect

    Evans, A.P.

    1996-12-31

    Babcock & Wilcox (B&W) is conducting a five-year project aimed at the development of practical, cost-effective strategies for reducing the emissions of hazardous air pollutants (commonly called air toxics) from coal-fired electric utility plants. The need for air toxic emissions controls may arise as the U.S. Environmental Protection Agency proceeds with implementation of Title III of the Clean Air Act Amendment of 1990. Data generated during the program will provide utilities with the technical and economic information necessary to reliably evaluate various air toxics emission compliance options such as fuel switching, coal cleaning, and flue gas treatment. The development work is being carried out using B&W`s new Clean Environment Development Facility (CEDF) wherein air toxics emission control strategies can be developed under controlled conditions, and with proven predictability to commercial systems. Tests conducted in the CEDF provide high quality, repeatable, comparable data over a wide range of coal properties, operating conditions, and emissions control systems. Development work to date has concentrated on the capture of mercury, other trace metals, fine particulate, and the inorganic species hydrogen chloride and hydrogen fluoride.

  14. Upgraded coal interest group. First quarterly technical progress report, October 1, 1994--December 31, 1994

    SciTech Connect

    Weber, W.; Lebowitz, H.E.

    1994-12-31

    The interest group got under way effective January 1, 1994, with nine utility members, EPRI, Bechtel, and the Illinois Clean Coal Institute. DOE participation was effective October 1, 1994. The first meeting was held on April 22, 1994 in Springfield, Illinois and the second meeting was held on August 10--11, 1994 at Johnstown, Pennsylvania. Technical reviews were prepared in several areas, including the following: status of low rank coal upgrading, advanced physical coal cleaning, organic sulfur removal from coal, handling of fine coal, combustion of coal water slurries. It was concluded that, for bituminous coals, processing of fines from coal cleaning plants or impoundments was going to be less costly than processing of coal, since the fines were intrinsically worth less and advanced upgrading technologies require fine coal. Penelec reported on benefits of NOX reductions when burning slurry fuels. Project work was authorized in the following areas: Availability of fines (CQ, Inc.), Engineering evaluations (Bechtel), and Evaluation of slurry formulation and combustion demonstrations (EER/MATS). The first project was completed.

  15. Evaluation, engineering and development of advanced cyclone processes. Quarterly technical progress report No. 15, April 1, 1994--June 30, 1994

    SciTech Connect

    1994-12-31

    The project goal is to develop an advanced coal beneficiation technology that can achieve high recovery of the parent coal`s calorific value, while maximizing pyritic sulfur removal. Coal cleaning is to be accomplished by physical means incorporating an advanced form of cycloning or gravimetric process. Evaluation of different media types and their attendant systems for recovery, concentration, and regeneration is to be completed. Phase I, media evaluation, now completed involved a paper study and a number of laboratory tests to eliminate all but the best media options. Phase II, media testing, involved detailed testing of the more promising media and separators in a closed-loop pilot facility circuit. In the final phase, Phase III, it is proposed to test individual components of the process using the optimum medium, separator, and medium recovery systems(s) selected in prior phases. Some of the highlights for this reporting period are: (1) Outomec conducted a second set of hot water wash experiments. These hot water experiments, using prefiltered medium, yielded a significant improvement in calcium nitrate recovery, and showed a consistent decrease in residuum calcium nitrate with increasing wash rate. (2) Several alternatives were investigated for potential reduction in thermal regeneration process costs. Culligan, Spin Tek, and Rochem, manufacturers of reverse osmosis or ultra filtration systems were contacted. Rochem ultimately performed laboratory experiments. Starting with a dilute medium density of 1.07, the Rochem laboratory system achieved a density of 1.11. A density of 1.22 sg would be commercially attainable. This is less than the target medium density of 1.35, meaning that if their system were utilized, some thermal means would still be required to regenerate medium to operating density. (3) Management and Technical Systems initiated work on a preliminary economic study and will submit a report during the next quarterly reporting period.

  16. Appalachian clean coal technology consortium. Quarterly report, July 1, 1995--September 30, 1995

    SciTech Connect

    1995-11-20

    The Appalachian Clean Coal Technology Consortium (ACCTC) has been established to help U.S. Coal producers, particularly those in the Appalachian region, increase the production of lower-sulfur coal. The cooperative research conducted as part of the consortium activities will help utilities meet the emissions standards established by the 1990 Clean Air Act Amendments, enhance the competitiveness of U.S. coals in the world market, create jobs in economically-depressed coal producing regions, and reduce U.S. dependence on foreign energy supplies. In keeping with the recommendations of the Advisory Committee, first-year R&D activities are focused on two areas of research: fine coal dewatering and modeling of spirals. The industry representatives to the Consortium identified fine coal dewatering as the most needed area of technology development. Dewatering studies are being conducted by Virginia Tech`s Center for Coal and Minerals Processing. A spiral model will be developed by West Virginia University. The most promising approach to improving spiral separation efficiency is through extensive computer modeling of fluid and solids flow in the various operating regions of the spiral. Accomplishments for these two tasks are described.

  17. Microbial stabilization of sulfur-laden sorbents. [Quarterly] technical report, March 1, 1993--May 31, 1993

    SciTech Connect

    Miller, K.W.

    1993-09-01

    Clean coal technologies that involve limestone for in situ sulfur capture generate lime/limestone products laden with sulfur at various oxidation states. If sulfur is completely stabilized as sulfate, the spent sorbent is ready for commercial utilization as gypsum. However, the presence of reduced sulfur species requires additional processing. Thermal oxidation of reduced sulfur frequently results in undesirable release of SO{sub 2}. Microbial oxidation might provide an inexpensive and effective alternative. Sorbents laden with reduced forms of sulfur such as sulfide or sulfite can serve as growth substrates for sulfur-oxidizing bacteria, which convert all sulfur to sulfate. The goals of this project are the following: (1) to optimize conditions for sulfate generation from sulfide, thiosulfate, and sulfite; (2) to test and optimize the effectiveness of microbial processing on spent sorbents from flue gas desulfurization, coal gasification, and fluidized bed combustion; (3) to search for hyperalkalinophilic thiobacilli, which would be effective up to pH 11. This quarter, temperature, nitrogen, and phosphate requirements for sulfate generation on thiosulfate were optimized with respect to two named strains and two promising isolates. Spent sorbents from three different power plants were tested for sulfite and thiosulfate contents, in preparation for bioprocessing.

  18. Western Research Institute quarterly technical progress report, July--September 1993

    SciTech Connect

    Not Available

    1993-12-31

    Accomplishments for the quarter are described briefly for the following areas of research: oil shale; tar sand; coal; advanced exploratory process technology; and jointly sponsored research. Oil shale research covers process studies. Tar sand research is on recycle oil pyrolysis and extraction (ROPE{sup TM}) Process. Coal research includes: coal combustion; integrated coal processing concepts; and solid waste management. Advanced exploratory process technology includes: advanced process concepts; advanced mitigation concepts; and oil and gas technology. Jointly sponsored research covers: CROW{sup TM} field demonstration with Bell Lumber and Pole; operation and evaluation of the CO{sub 2} HUFF-N-PUFF Process; fly ash binder for unsurfaced road aggregates; solid state NMR analysis of Mesaverde group, Greater Green River Basin, tight gas sands; characterization of petroleum residua; shallow oil production using horizontal wells with enhanced oil recovery techniques; surface process study for oil recovery using a thermal extraction process; oil field waste cleanup using tank bottom recovery process; remote chemical sensor development; in situ treatment of manufactured gas plant contaminated soils demonstration program; solid state NMR analysis of Mowry formation shale from different sedimentary basins; solid state NMR analysis of naturally and artificially matured kerogens; and development of an effective method for the clean-up of natural gas.

  19. Mild pyrolysis of selectively oxidized coals. [Quarterly] technical report, March 1, 1992--May 31, 1992

    SciTech Connect

    Hippo, E.J.; Palmer, S.R.

    1992-10-01

    The primary objective of this study is to investigate the removal organic sulfur from selectively oxidized Illinois coals using mild thermal/chemical processes. Work completed this quarter primarily concerned the investigation of the desulfurization of the selectively oxidized coals using aqueous or alcoholic base mixtures. Model compound studies were initiated. Results were: Levels of desulfurization obtained in this study are at, or very close to, the 90% removal levels required for these coals to be in compliance with the Clean Air Act legislation; Up to 89.4% of the sulfur in the IBC 101 coal and 88.9% of the sulfur in the IBC 106 coal has been removed by combining selective oxidation and alcoholic/base reactions; Overall, selective oxidation pretreatment always led to a lower sulfur product than the untreated sample; Substantial enhancement in the reactivity of the sulfur in the coal has been achieved by the selective oxidation pretreatment; The highest levels of desulfurization obtained so far all involve bases as additives; The water/Na{sub 2}CO{sub 3} combination, was superior than any of the aqueous hydroxide bases. Possible synergistic interactions between the alcohol and the base are suspected. Over 70% of the sulfur in the IBC 101 coal can be removed by performing vacuum pyrolysis on the selectively oxidized coal. Lower sulfur contents are obtained by lowing the pyrolysis pressure.

  20. TIG WELDER LOCATED IN THE CLEAN ROOM OF THE TECHNICAL SERVICES BUILDING TSB - THE INERT GAS WELDING

    NASA Technical Reports Server (NTRS)

    1963-01-01

    TIG WELDER LOCATED IN THE CLEAN ROOM OF THE TECHNICAL SERVICES BUILDING TSB - THE INERT GAS WELDING FACILITY IS USED FOR WELDING REFRACTORY METALS IN CONNECTION WITH THE COLUMBIUM LIQUID SODIUM LOOP PROJECT

  1. Methyl chloride via oxyhydrochlorination of methane. Quarterly technical progress report No. 13, October--December 1994

    SciTech Connect

    1995-02-01

    The purpose of this contract is to develop a process for converting light alkane gases to methyl chloride via oxyhydrochlorination using highly selective, stable catalysts in fixed-bed reactors designed to remove the large amount of heat generated, so as to control the reaction temperature. Further, the objective is to obtain the engineering data base necessary for developing a commercially feasible process and to evaluate t economics of the process. Significant progress was made in six different technical areas during this quarter. These key highlights are: (1) Evaluation of catalyst samples from UCI led to the ordering of the OHC PDU catalyst batch. This catalyst batch arrived, was screened and found to be defective, and was reordered. (2) Natural gas containing higher hydrocarbons was used as a methane source. The reactant mixture formed oxygenates at temperatures lower than observed in the past. Burning at such low temperatures seems to create a product stream containing very little CH{sub 2}Cl{sub 2}. (3) Although it has not been decided if the PDU will use natural gas from the plant or methane or natural gas from cylinders as a methane feed source, it was concluded that an adsorption unit to remove sulfur and higher hydrocarbons is not necessary at this time. (4) PDU construction was completed in December. The bulk of insulation work was completed at the end of November. Much effort has been put into pressure testing the PDU`s systems. The startup team has become adept at finding and correcting such leaks. (5) SOP writing for the PDU was completed this quarter with communication with the software programmer to insure agreement between the software and SOP.

  2. Advancement of flash hydrogasification. Quarterly technical progress report, January-March 1984

    SciTech Connect

    Falk, A.Y.

    1984-06-25

    This first quarterly report documents technical progress during the period 31 December 1983 through 30 March 1984. The technical effort is 17 months in duration and is divided into two major technical tasks: Task VII, Hardware Fabrication and PDU Modifications, and Task VIII, Performance Testing. The design of test hardware and process development unit modifications had been previously completed as part of Task VI of the current contract. Task VII involves the fabrication of test hardware and modification of an existing 1-ton/h hydroliquefaction PDU at Rockwell's facilities for use as a hydrogasifier test facility. During this report period, fabrication of the test hardware and modifications to the PDU were initiated. Test hardware fabrication is now approximately 80% complete and should be completed by the end of May 1984. PDU modifications are progressing well and should be completed by the end of June 1984. The completed test hardware fabrication and PDU modifications will allow the conduct of short duration (1 to 2 h) hydrogasification tests along with preburner assembly performance evaluation tests in order to fulfill the test program objectives. Separate supplies of hydrogen, oxygen, methane, carbon monoxide, and water (for steam generation) are provided for this purpose. The modified facility is designed to accommodate both 10- and 20-ft-long hydrogasifier reactors so that residence times will be in the range of 2 to 6 s when coal is fed at a nominal 1/2 ton/h into reactors at 1000 psia pressure. Provisions are being made for real-time analysis of the product gases using an on-line gas chromatograph system. Test planning was the only Task VIII effort active during this report period. An initial (preliminary) test matrix has been defined. Preparation of a data analysis plan is underway, and data reduction programs are being programmed. 17 references, 25 figures, 6 tables.

  3. NREL Spectrum of Clean Energy Innovation: Issue 3 (Book)

    SciTech Connect

    Not Available

    2012-11-01

    This quarterly magazine is dedicated to stepping beyond the technical journals to reveal NREL's vital work in a real-world context for our stakeholders. Continuum provides insights into the latest and most impactful clean energy innovations, while spotlighting those talented researchers and unique facilities that make it all happen. This edition focuses on the NREL Spectrum of Clean Energy Innovation.

  4. Advanced Coal Conversion Process Demonstration Project. Quarterly technical progress report, January 1, 1994--March 31, 1994

    SciTech Connect

    1996-02-01

    This report describes the technical progress made on the Advanced Coal Conversion Process (ACCP) Demonstration Project from January 1, 1994, through March 31, 1994. This project demonstrates an advanced, thermal, coal drying process, coupled with physical cleaning techniques, that is designed to upgrade high-moisture, low-rank coals to a high-quality, low-sulfur fuel, registered as the SynCoal{reg_sign} process. The coal is processed through three stages (two heating stages followed by an inert cooling stage) of vibrating fluidized bed reactors that remove chemically bound water, carboxyl groups, and volatile sulfur compounds. After thermal processing, the coal is put through a deep-bed stratifier cleaning process to separate the pyrite-rich ash from the coal. Rosebud SynCoal Partnership`s ACCP Demonstration Facility entered Phase III, Demonstration Operation, in April 1992 and operated in an extended startup mode through August 10, 1993, when the facility became commercial. Rosebud SynCoal Partnership instituted an aggressive program to overcome startup obstacles and now focuses on supplying product coal to customers. Significant accomplishments in the history of the SynCoal{reg_sign} process development are shown in Appendix A.

  5. MHD Integrated Topping Cycle Project. Fourteenth quarterly technical progress report, November 1, 1990-- January 31, 1991

    SciTech Connect

    Not Available

    1992-02-01

    This fourteenth quarterly technical progress report of the MHD Integrated Topping Cycle Project presents the accomplishments during the period November 1, 1990 to January 31, 1991. Testing of the High Pressure Cooling Subsystem electrical isolator was completed. The PEEK material successfully passed the high temperature, high pressure duration tests (50 hours). The Combustion Subsystem drawings were CADAM released. The procurement process is in progress. An equipment specification and RFP were prepared for the new Low Pressure Cooling System (LPCS) and released for quotation. Work has been conducted on confirmation tests leading to final gas-side designs and studies to assist in channel fabrication.The final cathode gas-side design and the proposed gas-side designs of the anode and sidewall are presented. Anode confirmation tests and related analyses of anode wear mechanisms used in the selection of the proposed anode design are presented. Sidewall confirmation tests, which were used to select the proposed gas-side design, were conducted. The design for the full scale CDIF system was completed. A test program was initiated to investigate the practicality of using Avco current controls for current consolidation in the power takeoff (PTO) regions and to determine the cause of past current consolidation failures. Another important activity was the installation of 1A4-style coupons in the 1A1 channel. A description of the coupons and their location with 1A1 channel is presented herein.

  6. Coal liquefaction process streams characterization and evaluation. Quarterly technical progress report, April 1--June 30, 1992

    SciTech Connect

    Brandes, S.D.; Lancet, M.S.; Robbins, G.A.; Winschel, R.A.; Burke, F.P.

    1992-11-01

    This is the eleventh Quarterly Technical Progress Report under DOE Contract DE-AC22-89PC89883. Major topics reported are: (1) The results of a study designed to determine the effects of the conditions employed at the Wilsonville slurry preheater vessel on coal conversion is described. (2) Stable carbon isotope ratios were determined and used to source the carbon of three product samples from Period 49 of UOP bench-scale coprocessing Run 37. The results from this coprocessing run agree with the general trends observed in other coprocessing runs that we have studied. (3) Microautoclave tests and chemical analyses were performed to ``calibrate`` the reactivity of the standard coal used for determining donor solvent quality of process oils in this contract. (4) Several aspects of Wilsonville Close-Coupled Integrated Two-Stage Liquefaction (CC-ITSL) resid conversion kinetics were investigated; results are presented. Error limits associated with calculations of deactivation rate constants previously reported for Runs 258 and 261 are revised and discussed. A new procedure is described that relates the conversions of 850{degrees}F{sup +} , 1050{degrees}F{sup +}, and 850 {times} 1050{degrees}F material. Resid conversions and kinetic constants previously reported for Run 260 were incorrect; corrected data and discussion are found in Appendix I of this report.

  7. TIDD PFBC Demonstration Project: Third quarterly technical progress report 1992, CY 1992

    SciTech Connect

    Not Available

    1992-10-01

    This is the 22nd Technical Progress Report submitted to the Department of Energy in connection with the Cooperative Agreement between the DOE and the Ohio Power Company for the Tidd PFBC Demonstration Plant. This report covers the period from July 1, 1992 to September 30, 1992. The unit was operated for a total of 903 hours (including gas turbine air prewarming). There were 9 gas turbine starts, 11 preheating starts, and 8 operating periods with coal fire. The peak gross output of 59 MWH was achieved for the period of 1600 to 1700 hours on September 23, 1992. The longest coal fire was 422 hourb beginning at 1349 hours on August 9, 1992. Total gross generation was 32,418 MWH, and coal consumption was 15,846 tons. Testing was completed on the gas turbine blade resonance frequency problem. The report showed that a resonant frequency problem existing at high LPT speeds and at a mostly closed guide vane position. An operating curve was developed by ABBC to avoid the points of blade resonance. Monitoring of solid, liquid and gaseous waste streams, as detailed in the operations phase monitoring requirements in the EMP, were performed throughout the quarter.

  8. MHD Integrated Topping Cycle Project. Sixteenth quarterly technical progress report, May 1991--July 1991

    SciTech Connect

    Not Available

    1992-03-01

    The Magnetohydrodynamics (MHD) Integrated Topping Cycle (ITC) Project represents the culmination of the proof-of-concept (POC) development stage in the US Department of Energy (DOE) program to advance MHD technology to early commercial development stage utility power applications. The project is a joint effort, combining the skills of three topping cycle component developers: TRW, Avco/TDS, and Westinghouse. TRW, the prime contractor and system integrator, is responsible for the 50 thermal megawatt (50 MW{sub t}) slagging coal combustion subsystem. Avco/TDS is responsible for the MHD channel subsystem (nozzle, channel, diffuser, and power conditioning circuits), and Westinghouse is responsible for the current consolidation subsystem. The ITC Project will advance the state-of-the-art in MHD power systems with the design, construction, and integrated testing of 50 MW{sub t} power train components which are prototypical of the equipment that will be used in an early commercial scale MHD utility retrofit. Long duration testing of the integrated power train at the Component Development and Integration Facility (CDIF) in Butte, Montana will be performed, so that by the early 1990`s, an engineering data base on the reliability, availability, maintainability and performance of the system will be available to allow scaleup of the prototypical designs to the next development level. This Sixteenth Quarterly Technical Progress Report covers the period May 1, 1991 to July 31, 1991.

  9. EDS coal liquefaction process development. Phase V. Quarterly technical progress report, July 1-September 30, 1980

    SciTech Connect

    1981-02-01

    This report is the tenth Quarterly Technical Progress Report for US Department of Energy Cooperative Agreement No. DE-FC01-77ET10069 (formerly EF-77-A-01-2893) for Exxon Donor Solvent (EDS) Coal Liquefaction Process Development - Phase V. The Laboratory Process Research and Development studies were conducted at various Exxon Research and Engineering Co. (ER and E) facilities: Research and Development Division at Baytown, Texas; Products Research Division at Linden, New Jersey; and the Exxon Research and Development Laboratories at Baton Rouge, Louisiana. The Engineering Research and Development studies were performed at the Synthetic Fuels Engineering and Exxon Engineering Technology Departments of ER and E at Florham Park, New Jersey. The information dealing with the Management, Detailed Engineering, and Procurement activities related to revamp of the FLEXICOKING Prototype Unit was generated at Exxon Company, USA, Houston, Texas, and Exxon Engineering - Project Management Department of ER and E, Florham Park, New Jersey. The information dealing with operation of the 250 T/D Exxon Coal Liquefaction Pilot Plant (ECLP) was generated at Exxon Company, USA, Houston, Texas.

  10. Heterogeneous kinetics of coal gasification. Quarterly technical progress report, 1 April 1983-30 June 1983

    SciTech Connect

    Calo, J.M.; Ganapathi, R.

    1983-01-01

    In the current quarterly technical progress report we present data and results on transient kinetic studies of the steam-char reaction system for activated coconut and lignite chars. These experiments were conducted in a fashion similar to the previous char-CO/sub 2/ studies, under approximately the same experimental conditions. The two principal product species, H/sub 2/ and CO, were monitored using the automatic mass programming system developed especially for this project. In order to perform the steam-char experiments, the original apparatus was modified by the addition of a steam generation/condensate removal system. The steam-char reaction system, being somewhat more complex than the CO/sub 2/-char reaction system, was modeled with a six-parameter, elementary kinetic scheme. The ''effective'' active site concentrations determined from the steam gasification data were of the same order of magnitude, and behaved in a similar fashion, to those obtained for the CO/sub 2/ gasification studies. The implications of this result are briefly discussed. 21 refs., 23 figs., 2 tabs.

  11. EDS coal liquefaction process development: Phase V. Quarterly technical progress report, January 1-March 31, 1984

    SciTech Connect

    1984-07-01

    This report is the twenty-first Quarterly Technical Progress Report for US Department of Energy Cooperative Agreement No. DE-FC05-77ET10069 for EDS Coal Liquefaction Process Development Phase V. A detailed comparison of RCLU, CLPP, and ECLP yields has been initiated. This study builds off previous yield modeling results, which found that RCLU, CLPP, and ECLP yields were generally consistent given the scatter of the data, although some differences were noted. These pilot unit yield differences have now been quantified, and operating/configurational differences which account for some of them have been identified. Preliminary yield comparison results after correcting for these known process differences between the pilot plants indicate that: RCLU and CLPP yields are generally consistent; ECLP's conversion is about 5 lb/100 lb DAF coal lower than RCLU/CLPP at comparable operating conditions; and work has been initiated to define the EDS slurry preheater feed system design (based on slurry distributor manifold guidelines and coking correlation predictions, which influence furnace pass control issues such as slurry flow measurement). EDS hydrotreated naphtha showed a low level of systemic toxicity to rats exposed to the vapor six hours per day, five days per week for thirteen weeks.

  12. Production and screening of carbon products precursors from coal. Quarterly technical report, October 1, 1996--December 31, 1996

    SciTech Connect

    Irwin, C.L.

    1997-02-01

    The technical work during this past quarter has focused on enhancing equipment and instrumentation in the WVU Carbon Products Laboratory. Development work on coal-based precursors for carbon foams, pitches, cokes, and fibers continues. The effects of carbon powders and chopped fibers as additives to the foam precursor are being evaluated. Extensive coordination and technology transfer activities have been undertaken and are described in Section 5 of this report.

  13. Acoustic agglomeration of power plant fly ash: Quarterly technical report, November 5, 1986--February 5, 1987

    SciTech Connect

    Reethof, G.

    1987-03-20

    The objective of this project is to complete the investigations on the use of high intensity acoustic energy to agglomerate micron and submicron sized particulates in fly ash aerosols in order to provide the necessary scientific knowledge and design criteria for the specification of technically and economically viable intermediate flue gas treatment of coal fired power plants. The results of the project are to provide technical and economic information for the better development and evaluation of potential fine particulate control systems. The goals of the proposed work are to further the understanding of certain fundamental processes by means of theoretical and experimental investigations, to include this knowledge in an advanced computerized model of the agglomeration processes. Tests with the two acoustic agglomerators available in Penn State's new High Intensity Acoustics Laboratory will be used to verify the results from the agglomeration simulation. Research work will continue on high power, high efficiency sirens with special emphasis on the nonlinear acoustic phenomena and novel means of significantly increasing siren efficiency. A study will be carried out to evaluate the economics of conventional coal fired power plant clean-up systems using acoustic agglomerators as intermediate flue gas treatment.

  14. Syn-Fuel reciprocating charge pump improvement program. Quarterly technical project report, April-June 1984

    SciTech Connect

    Not Available

    1984-01-01

    Major accomplishments during the second quarter of 1984 were completion of the Diaphragm Separation Seal clear liquid testing, and initiation of Phase III Field Testing. Diaphragm operational testing was conducted on a clear water test loop. The test goals were to ensure; mechanical reliability of the Diaphragm Seal, safe operation with simulated component failure, and proper operation of the Diaphragm Buffer Volume Control System. This latter system is essential in controlling the phasing of the diaphragm with its driving plunger. These tests were completed successfully. All operational problems were solved. However, it must be emphasized that the Diaphragm Seal would be damaged by allowing the pump to operate in a cavitating condition for an extended period of time. A change in the Field Test phase of the program was made regarding choice of field test site. There is no operating Syn-Fuel pilot plant capable of inexpensively producing the slurry stream required for the reciprocating pump testing. The Field Tests will now be conducted by first testing the prototype pump and separation seals in an ambient temperature sand water slurry. This will determine resistence to abrasive wear and determine any operation problems at pressure over a lengthy period of time. After successful conclusion of these tests the pump and seals will be operated with a high temperature oil, but without solids, to identify any problems associated with thermal gradients, thermal shock and differential growth. After successful completion of the high temperature clean oil tests the pump will be deemed ready for in-line installation at a designated Syn-Fuel pilot plant. The above approach avoids the expense and complications of a separate hot slurry test loop. It also reduces risk of operational problems while in-line at the pilot plant. 5 figs.

  15. Stanford Geothermal Program (quarterly technical progress reports, July--September 1990 and October--December 1990)

    SciTech Connect

    Not Available

    1991-02-18

    For the summer quarter, progress is summarized and data are presented on the following: well test analysis of finite-conductivity fractures, theoretical investigation of adsorption phenomena, and optimization of reinjection strategy. For the fall quarter, activity focused on the adsorption and well testing projects. A new project investigating reinjection at the Geysers was initiated. (MHR)

  16. Hybrid 320 Ton Off Highway Haul Truck: Quarterly Technical Status Report 10

    SciTech Connect

    Tim Richter

    2005-05-05

    This tenth quarterly status report for the Hybrid Off Highway Vehicle (OHV) project, DOE Award DE-FC04-2002AL68080 presents the project status at the end of March 2005, and covers activities in the tenth project quarter, January-March 2005.

  17. Quarterly Reporting of Government-Funded Activity to the 2015 National VET Provider Collection. Technical Paper

    ERIC Educational Resources Information Center

    Foley, Paul

    2016-01-01

    The topic of more frequent and timely vocational education and training (VET) data has been an issue of interest for a number of years. Since 2015, the National Centre for Vocational Education Research (NCVER) has collected and reported data on government-funded students and courses on a quarterly basis. These quarterly data submissions are…

  18. Hybrid 320 Ton Off Highway Haul Truck: Quarterly Technical Status Report 9

    SciTech Connect

    Tim Richter

    2005-03-02

    This ninth quarterly status report for the Hybrid Off Highway Vehicle (OHV) project, DOE Award DEFC04- 2002AL68080 presents the project status at the end of December 2004, and covers activities in the ninth project quarter, October - December 2004.

  19. Jointly sponsored research program quarterly technical progress report, January--March 1994

    SciTech Connect

    Not Available

    1994-08-01

    Progress reports are presented for the following tasks: Development and demonstration of a practical electric downhole steam generator for thermal recovery of heavy oil and tar; wetting behavior of selected crude oil/brine/rock systems; coal gasification, power generation, and product market study; impact of leachate from clean coal technology waste on the stability of clay liners; investigation of coprocessing of heavy oil, automobile shredder residue, and coal; injection into coal seams for simultaneous CO{sub 2} mitigation and enhanced recovery of coalbed methane; optimization of carbonizer operations in the FMC coke process; chemical sensor and field screening technology development; demonstration of the Koppelman ``Series C`` Power River Basin coal as feed; remote chemical sensor development; market assessment and technical feasibility study of PFBC ash use; solid-state NMR analysis and interpretation of naturally and artificially matured kerogens; Crow{trademark} field demonstration with Bell Lumber and Pole; ``B`` series pilot plant tests; and in-situ treatment of manufactured gas plant contaminated soils demonstration program.

  20. Tidd PFBC Demonstration Project fourth quarterly technical progress report, CY 1992

    SciTech Connect

    Not Available

    1993-01-01

    This is the 23rd technical progress report submitted to the Department of Energy in connection with the cooperative agreement between the DOE and the Ohio Power Company for the Tidd PFBC Demonstration Plant. This report covers the period from October 1, 1992 to December 31, 1992. Major activities during this period involve: (1) The unit was operated for a total of 714 hours (including gas turbine air prewarming). There were seven gas turbine starts, seven bed preheater starts, and seven operating periods with coal fire. The peak gross output of 64 MWH was achieved for the period of 1000 to 1100 hours on November 23, 1992. The longest coal fire was 285 hours beginning at 1211 hours on November 25, 1992. (2) Total gross generation was 24,643, and coal consumption was 11,900 tons. (3) The hot gas clean up system was commissioned. (4) Active end fluidization system to address sparge duct cracking and deformation problem was jointly initiated by ABB carbon, B&W and AEPSC. (5) All testing continued using Plum Run dolomite. This approach was taken as a conservative means to avoid sintering and unit trips which were encountered during the previous two start-ups in September using limestone and (6) monitoring of solid, liquid and gaseous waste streams, as detailed in the operations phase monitoring requirements in the EMP, were performed.

  1. Tidd PFBC Demonstration Project fourth quarterly technical progress report, CY 1992

    SciTech Connect

    Not Available

    1993-01-01

    This is the 23rd technical progress report submitted to the Department of Energy in connection with the cooperative agreement between the DOE and the Ohio Power Company for the Tidd PFBC Demonstration Plant. This report covers the period from October 1, 1992 to December 31, 1992. Major activities during this period involve: (1) The unit was operated for a total of 714 hours (including gas turbine air prewarming). There were seven gas turbine starts, seven bed preheater starts, and seven operating periods with coal fire. The peak gross output of 64 MWH was achieved for the period of 1000 to 1100 hours on November 23, 1992. The longest coal fire was 285 hours beginning at 1211 hours on November 25, 1992. (2) Total gross generation was 24,643, and coal consumption was 11,900 tons. (3) The hot gas clean up system was commissioned. (4) Active end fluidization system to address sparge duct cracking and deformation problem was jointly initiated by ABB carbon, B W and AEPSC. (5) All testing continued using Plum Run dolomite. This approach was taken as a conservative means to avoid sintering and unit trips which were encountered during the previous two start-ups in September using limestone and (6) monitoring of solid, liquid and gaseous waste streams, as detailed in the operations phase monitoring requirements in the EMP, were performed.

  2. Jointly sponsored research program. Quarterly technical progress report, October--December 1993

    SciTech Connect

    Deans, H.A.

    1994-05-01

    This is a progress report on work performed by Western Research Institute for the U.S. DOE, Morgantown Energy Technology Center in the period October- December 1993. Tasks addressed include: development and demonstration of a practical electric downhole steam generator for thermal recovery of heavy oil and tar; wetting behavior of selected crude oil/brine/rock systems; coal gasification, power generation, and product market study; the impact of leachate from clean coal technology waste on the stability of clay liners; investigation of coprocessing of heavy oil, automobile shredder residue, and coal; injection into coal seams for simultaneous CO{sub 2} mitigation and enhanced recovery of coalbed methane; optimization of carbonizer operations in the FMC coke process; chemical sensor and field screening technology development; demonstration of the koppelman {open_quotes}series c{close_quotes} process using a batch test unit with Powder River Basin coal as feed; remote chemical sensor development; market assessment and technical feasibility study of PFBC ash use; solid-state NMR analysis and interpretation of naturally and artificially matured kerogens; Crow{trademark} field demonstration with bell lumber and pole; {open_quotes}B{close_quotes} series pilot plant tests; in situ treatment of manufactured gas plant contaminated soils demonstration program.

  3. Hanford tank clean up: A guide to understanding the technical issues

    SciTech Connect

    Gephart, R.E.; Lundgren, R.E.

    1995-12-31

    One of the most difficult technical challenges in cleaning up the US Department of Energy`s (DOE) Hanford Site in southeast Washington State will be to process the radioactive and chemically complex waste found in the Site`s 177 underground storage tanks. Solid, liquid, and sludge-like wastes are contained in 149 single- and 28 double-shelled steel tanks. These wastes contain about one half of the curies of radioactivity and mass of hazardous chemicals found on the Hanford Site. Therefore, Hanford cleanup means tank cleanup. Safely removing the waste from the tanks, separating radioactive elements from inert chemicals, and creating a final waste form for disposal will require the use of our nation`s best available technology coupled with scientific advances, and an extraordinary commitment by all involved. The purpose of this guide is to inform the reader about critical issues facing tank cleanup. It is written as an information resource for the general reader as well as the technically trained person wanting to gain a basic understanding about the waste in Hanford`s tanks -- how the waste was created, what is in the waste, how it is stored, and what are the key technical issues facing tank cleanup. Access to information is key to better understanding the issues and more knowledgeably participating in cleanup decisions. This guide provides such information without promoting a given cleanup approach or technology use.

  4. BX in situ oil shale project. Quarterly technical progress report, September 1-November 30, 1981

    SciTech Connect

    Dougan, P.M.

    1981-12-20

    September 1, 1981-November 30, 1981, was the fourth consecutive quarter of superheated steam injection at the BX In Situ Oil Shale Project. During the quarter, 117,520 barrels of water as steam were injected into project injection wells at an average wellhead temperature of 715/sup 0/F and an average wellhead pressure of 1378 PSIG. During the same period, 148,516 barrels of fluid were produced from the project production wells for a produced-to-injected fluid ratio of 1.26 to 1.0. Net oil production for the quarter was 169 barrels.

  5. Identification and Evaluation of Fluvial-Dominated Deltaic Reservoirs. Quarterly technical report, April 1 -June 30, 1997

    SciTech Connect

    Banken, M.K.; Andrews, R.

    1997-09-12

    This document is provided as a Quarterly Technical Progress Report for the program entitled `Identification and Evaluation of Fluvial- Dominated Deltaic (Class 1 Oil) Reservoirs in Oklahoma`, covering the reporting period of April 1 - June 30, 1997. Work is progressing as expected for the project. The FDD computer facility is fully operational. During this quarter, there were 27 industry individuals who used the facility. The Tonkawa Play workshop is scheduled for July 9, 1997 in Norman. The Tonkawa publication and presentation graphics are nearly completed. The Bartlesville workshop is scheduled for October and November, 1997, in three different sites. Text and illustrations for that play are in progress. This project is serving an extremely valuable role in the technology transfer activities for the Oklahoma petroleum industry, with very positive industry feedback.

  6. Micro-agglomerate flotation for deep cleaning of coal. Quarterly progress report, April 1--June 30, 1993

    SciTech Connect

    Chander, S.; Hogg, R.

    1993-07-01

    The goals of this research program are to demonstrate the technical and economic feasibility of a micro-agglomerate flotation process and to establish the essential criteria for reagent selection and system design and operation. The development of practical technologies for the deep cleaning of coal has been seriously hampered by the problems of carrying out efficient coal/mineral separations at the very fine sizes (often finer than 10 {mu}m) needed to achieve adequate liberation of the mineral matter from the coal matrix. It is generally recognized that surface-based separation processes such as froth flotation or selective agglomeration offer considerable potential for such applications but there remain many problems in obtaining the required selectivity with acceptable recovery of combustible matter. In froth flotation, selectivity is substantially reduced at fine sizes due, primarily, to overloading of the froth phase which leads to excessive carryover of water and entrained mineral matter. Oil agglomeration, on the other hand, can provide good selectivity at low levels of oil addition but the agglomerates tend to be too fragile for separation by the screening methods normally used. The addition of larger amounts of oil can yield large, strong agglomerates which are easily separated but the selectivity is reduced and reagent costs can become excessive. We are investigating the use of a hybrid process -- Micro-agglomerate flotation -- which is a combination of oil agglomeration and froth flotation. The basic concept is to use small quantities of oil to promote the formation of dense micro-agglomerates.

  7. Fischer Tropsch synthesis in supercritical fluids. Quarterly technical progress report, July 1, 1995--September 30, 1995

    SciTech Connect

    Akgerman, A.; Bukur, D.B.

    1996-05-01

    Our objective for this quarter was to compare performance of the Ruhrchemie catalyst in different modes of operation: fixed bed reactor (conventional and supercritical mode of operation), and stirred tank slurry reactor. Diffusion coefficients are discussed.

  8. [National Institute for Petroleum and Energy Research] quarterly technical report, October 1--December 31, 1992

    SciTech Connect

    Not Available

    1993-04-01

    Accomplishments for the past quarter are described for the following tasks: chemical flooding--supporting research; gas displacement--supporting research; thermal recovery--supporting research; geoscience technology; resource assessment technology; and microbial technology.

  9. PFBC HGCU Test Facility. Fourth quarterly technical progress report, [October--December 1993

    SciTech Connect

    Not Available

    1994-01-01

    The APF was shut down on September 23, 1993 and no operation was performed during this quarter. This report summarizes inspection, candle reinstallation, retrofit and accelerometer testing conducted during this three month outage.

  10. Toms Creek Integrated Gasification Combined Cycle Demonstration Project. Final quarterly technical progress report for the period ending March 31, 1993

    SciTech Connect

    Feher, G.

    1993-05-24

    This Quarterly Technical Progress Report for the period ending March 31, 1993 summarizes the work done to data by Tampella Power Corporation and Enviropower, Inc. on the integrated combined-cycle power plant project. Efforts were concentrated on the Toms Creek PDS (Preliminary Design and Studies). Tampella Power Corporation`s efforts were concentrated on the Toms Creek Preliminary Process Flow Diagram (PFD) and Piping and Instrument Diagrams (P&IDs). Tampella Power Corporation also prepared Heat and Material Balances (H&MBs) for different site-specific cases.

  11. Bench-scale testing of the micronized magnetite process. Second quarterly technical progress report, October 1994--December 1994

    SciTech Connect

    1995-01-19

    This document contains the Quarterly Technical Progress Report for the Micronized Magnetite Testing Project being performed at PETC`s Process Research Facility (PRF). This second quarterly report covers the period from October, 1994 through December, 1994. The main accomplishments of Custom Coals and the project subcontractors, during this period, included: (1) Submitted all overdue project documents and kept up with routine reporting requirements; (2) Worked with CLI Corporation, the design subcontractor, and completed the circuit design and finalized all design drawings; (3) Specified and procured all of the process equipment for the circuit, as well as a number of ancillary equipment, instruments, and supplies; (4) Assisted Vangura Iron Inc. in detailing and constructing the structural and platework steel; (5) Subcontracted Rizzo & Sons to perform the circuit mechanical and electrical installation, and prepared for January 23rd installation start date; (6) Organized and prepared for coal and magnetite procurement; (7) Specified and organized an operating personnel plan for the commissioning and testing tasks in the project; (8) Assessed analytical challenges for project, and began to research problem areas. This report contains a short discussion of the project description, objectives, budget, schedule, and teaming arrangement. It also includes a detailed discussion of the abovementioned project accomplishments and plans, organized by the various task series within the project work plan. The final section contains an outline of the specific project goals for the next quarterly reporting period.

  12. Advanced liquefaction using coal swelling and catalyst dispersion techniques. Quarterly technical progress report, April--June 1992

    SciTech Connect

    Curtis, C.W.; Gutterman, C.; Chander, S.

    1992-08-26

    Research in this project centers upon developing a new approach to the direct liquefaction of coal to produce an all-distillate product slate at a sizable cost reduction over current technology. The approach integrates all aspects of the coal liquefaction process including coal selection, pretreatment, coal swelling with catalyst impregnation, coal liquefaction experimentation, product recovery with characterization, alternate bottoms processing, and a technical assessment including an economic evaluation. The project is being carried out under contract to the United States Department of Energy. On May 28, 1992, the Department of Energy authorized starting the experimental aspects of this projects; therefore, experimentation at Amoco started late in this quarterly report period. Research contracts with Auburn University, Pennsylvania State University, and Foster Wheeler Development Corporation were signed during June, 1992, so their work was just getting underway. Their work will be summarized in future quarterly reports. A set of coal samples were sent to Hazen Research for beneficiation. The samples were received and have been analyzed. The literature search covering coal swelling has been up-dated, and preliminary coal swelling experiments were carried out. Further swelling experimentation is underway. An up-date of the literature on the liquefaction of coal using dispersed catalysts is nearing completion; it will be included in the next quarterly report.

  13. Micro-agglomerate flotation for deep cleaning of coal. Quarterly progress report, July 1--September 30, 1994

    SciTech Connect

    Chander, S.; Hogg, R.

    1994-10-01

    The goals of this research program are to demonstrate the technical and economic feasibility of a micro-agglomerate flotation process and to establish the essential criteria for reagent selection and system design and operation. We are investigating the use of a hybrid process -- Micro-agglomerate flotation -- which is a combination of oil-agglomeration and froth flotation. The basic concept is to use small quantities of oil to promote the formation of dense micro-agglomerates with minimal entrapment of water and mineral particles, and to use froth flotation to extract these micro-agglomerates from the water/dispersed-mineral phase. Since the floating units are agglomerates (about 30--50 {mu}m in size) rather than individual coal particles (1--10 {mu}m) the problems of froth overload and water/mineral carryover should be significantly alleviated. Micro-agglomerate flotation has considerable potential for the practical deep cleaning of coal on a commercial scale. In principle, it should be possible to achieve both high selectivity and high yield at reasonable cost. The process requires only conventional, off-the-shelf equipment and reagent usage (oil, surfactants, etc.) should be small. There are, however, complications. The process involves at least five phases: two or more solids (coal and mineral), two liquids (oil and water) and one gas (air). It is necessary to maintain precise control over the chemistry of the liquid phases in order to promote the interfacial reactions and interactions between phases necessary to ensure selectivity. The research program has been organized into several specific tasks : interfacial studies; emulsification; agglomerate growth and structure; and agglomerate flotation. Accomplishments are reported.

  14. Development of vanadium-phosphate catalysts for methanol production by selective oxidation of methane. Quarterly technical progress report 4, July--September 1993

    SciTech Connect

    McCormick, R.L.; Jha, M.C.; Streuber, R.D.

    1993-12-07

    This document is the fourth quarterly technical progress report under Contract No. DE-AC22-92PC92110, {open_quotes}Development of Vanadium-Phosphate Catalysts for Methanol Production by Selective Oxidation of Methane.{close_quotes} During this quarter, the authors focused primarily on catalyst activity testing in the microreactor. Additional blank runs using methane and methanol were performed. Initial attempts at preparing a silica supported catalyst are described. These results are discussed in detail and plans for the coming quarter are outlined.

  15. Liquid fossil-fuel technology. Quarterly technical progress report, January-March 1983

    SciTech Connect

    Linville, B.

    1983-07-01

    Accomplishments for the quarter ending March 1983 are presented under the following headings: liquid fossil fuel cycle, processing, utilization, and project integration and technology transfer. Feature articles for this quarter are: (1) abandoned oil field reports issued; (2) oilfield water data bank report published; (3) microbial enhanced recovery report issued; (4) polymer-augmented project could be economic today; (5) carbon dioxide EOR estimates given; (6) BETC passes 65th milestone; and (7) fifty achievements for fifty years (1918-1968). BETC publications are also listed. (ATT)

  16. Management of dry flue gas desulfurization by-products in underground mines. Quarterly technical progress report, April 1995--June 1995

    SciTech Connect

    Chugh, Y.P.; Dutta, D.; Esling, S.

    1995-07-01

    On September 30, 1993, the U.S. Department of Energy-Morgantown Energy Technology Center and Southern Illinois University at Carbondale (SIUC) entered into a cooperative research agreement entitled {open_quotes}Management of Dry Flue Gas Desulfurization By-Products in Underground Mines{close_quotes} (DE-FC21-93MC30252). Under the agreement Southern Illinois University at Carbondale will develop and demonstrate several technologies for the placement of coal combustion residues in abandoned coal mines, and will assess the environmental impact of such underground residues placement. Previous quarterly Technical Progress Reports have set forth the specific objectives of the program, and a discussion of these is not repeated here. Rather, this report discusses the technical progress made during the period April 1 - June 30, 1995. A final topical report on the SEEC, Inc. demonstration of its technology for the transporting of coal combustion residues was completed during the quarter, although final printing of the report was accomplished early in July, 1995. The SEEC technology involves the use of Collapsible Intermodal Containers (CIC`s) developed by SEEC, and the transportation of such containers - filled with fly ash or other coal combustion residues - on rail coal cars or other transportation means. Copies of the final topical report, entitled {open_quotes}The Development and Testing of Collapsible Intermodal Containers for the Handling and Transport of Coal Combustion Residues{close_quotes} were furnished to the Morgantown Energy Technology Center. The Rapid Aging Test colums were placed in operation during the quarter. This test is to determine the long-term reaction of both the pneumatic and hydraulic mixtures to brine as a leaching material, and simulates the conditions that will be encountered in the actual underground placement of the coal combustion residues mixtures. The tests will continue for about one year.

  17. Oxidation of coal and coal pyrite mechanisms and influence on surface characteristics. [Quarterly] technical progress report, April--June 1993

    SciTech Connect

    Doyle, F.M.

    1993-06-30

    The objective of this research is to develop a mechanistic understanding of the oxidation of coal and coal pyrite, and to correlate the intrinsic physical and chemical properties of these minerals, along with changes resulting from oxidation, with those surface properties that influence the behavior in physical cleaning processes. The results will provide fundamental insight into oxidation, in terms of the bulk and surface chemistry, the microstructure, and the semiconductor properties of the pyrite. During the eleventh quarter, dry thermal oxidation tests were done on coal samples from the Pennsylvania State Coal Bank. As-received and oxidized coal samples were studied by ion-exchange methods to determine the carboxylate and phenolic group concentrations. Film flotation tests were done to characterize the flotability of as-received and oxidized coals. In addition, electrokinetic tests were done on different coals, to obtain information pertinent to the selection of flotation reagents. DRIFT analysis was done to characterize the structure of coals.

  18. Amarillo National Resource Center for Plutonium quarterly technical progress report, August 1, 1997--October 31, 1997

    SciTech Connect

    1997-12-31

    This report summarizes activities of the Amarillo National Resource Center for Plutonium during the quarter. The report describes the Electronic Resource Library; DOE support activities; current and future environmental health and safety programs; pollution prevention and pollution avoidance; communication, education, training, and community involvement programs; and nuclear and other material studies, including plutonium storage and disposition studies.

  19. Methyl chloride via oxyhydrochlorination of methane. Quarterly technical progress report No. 6, January--March 1993

    SciTech Connect

    Not Available

    1993-11-01

    The purpose of this contract is to develop a process for converting light alkane gases to methyl chloride via oxyhydrochlorination using highly selective, stable catalysts in fixed-bed reactors designed to remove the large amount of heat generated, so as to control the reaction temperature. Further, the objective is to obtain the engineering data base necessary for developing a commercially feasible process and to evaluate the economics of the process. This document reports significant progress this quarter toward the development of a stable heterogeneous packed bed catalyst for the oxyhydrochlorination of methane. This quarter`s data shows a catalyst which gave an average 18% methane conversion and 78% MeCl selectivity for a 12 day period of time. The PDU (Process Development Unit) design engineering effort made significant progress this quarter. A bid on a modular unit by Xytel Corp. was received and evaluated. The pre-engineering estimate showed that costs were considerably higher than the original project capital estimates. A rigorous effort was made to eliminate all non-essential equipment and scope of work. A reduced scope was agreed upon and in the second round both Xytel and the Dow Corning in-house facilities engineering team were allowed to bid on the package.

  20. Projects at the Western Environmental Technology Office. Quarterly technical progress report, January 1--March 31, 1995

    SciTech Connect

    1995-06-01

    This quarterly report briefly describes recent progress in eight projects. The projects are entitled Biomass Remediation Project; Heavy Metal-Contaminated Soil Project; MHD Shutdown; Mine Waste Technology Program; Plasma Projects; Resource Recovery Project; Spray Casting Project; and Watervliet Arsenal Project.

  1. Educational Technology Program. Quarterly Technical Summary, 1 September Through 30 November 1972.

    ERIC Educational Resources Information Center

    Frick, Frederick C.

    Several on-goint activities were conducted during this quarter. Field trials of the Lincoln Training System-3 (LTS-3) at Keesler Air Force Base were extended to include high-aptitude students previously excluded. Results showed such students scored significantly higher on achievement tests and learned substantially faster when they received LTS…

  2. Educational Technology Program. Quarterly Technical Summary, 1 March through 31 May 1973.

    ERIC Educational Resources Information Center

    Frick, Frederick C.

    During this quarter further investigations of alternative designs for the Lincoln Training System LTS-4 project's features and subsystems continued. Software efforts proceeded concurrently in three areas: 1) system architecture, monitor, and input/output programs; 2) a new version of the Lincoln Terminal Language, LTL-2; and 3) programs to apply…

  3. Educational Technology Program. Quarterly Technical Summary; 1 December 1974 through 28 February 1975.

    ERIC Educational Resources Information Center

    Frick, Frederick C.

    The development of the Lincoln Terminal System (LTS) terminals is described. During the quarter, a decision was made to discontinue work on a cassette-based microfiche storage and retrieval system and to continue work on a carousel-based system. The center has continued its preparation of lessons for use with LTS. Application of LTS to the…

  4. Educational Technology Program. Quarterly Technical Summary, 1 June through 31 August 1971.

    ERIC Educational Resources Information Center

    Frick, Frederick C.

    During the quarter covered by this report, the design of the Lincoln Training System-3 (LTS-3) Terminal System was completed and construction of a prototype unit begun. Four major hardware developments occurred: 1) An Image Systems, Incorporated Model 201 CARD Reader was converted into the LTS-3 audio-visual student terminal; 2) the first of five…

  5. Los Angeles County Juvenile Justice Crime Prevention Act. RAND Quarterly Report, October 2008. Technical Report

    ERIC Educational Resources Information Center

    Fain, Terry; Turner, Susan; Ridgeway, Greg

    2009-01-01

    This document is the second quarterly progress report for the evaluation of Juvenile Justice Crime Prevention Act (JJCPA) programs for the Los Angeles County Probation Department. The report covers the period from July 1, 2008, through September 30, 2008. The intent of the report is to provide Probation and the community-based organizations (CBOs)…

  6. OTEC support services. Quarterly technical progress report No. 17, 15 May 1982-14 August 1982

    SciTech Connect

    1982-08-01

    Progress relative to accomplishments and relative to meetings, conferences, etc. are reported in the areas of OTEC commercialization support, program technical engineering and instrumentation analysis, technical and management services, OTEC system integration, and transmission subsystem considerations. (LEW)

  7. OTEC support services. Quarterly technical progress report No. 19, November 15, 1982-February 14, 1983

    SciTech Connect

    Not Available

    1983-03-01

    Activities relative to accomplishments and to meetings, conferences, etc. are reported in the areas of: OTEC commercialization support, program technical engineering and instrumentation analysis, technical and management services, OTEC systems integration, and transmission subsystem considerations. (LEW)

  8. OTEC support services. Quarterly technical progress report No. 11, 15 November 1980-14 February 1981

    SciTech Connect

    1981-02-01

    Technical engineering and management support services for the Ocean Thermal Energy Conversion Program are listed along with their objectives. Progress is reported on the following: technical assessments, OTEC system integration, environment and siting considerations, and transmission subsystem considerations. (MHR)

  9. OTEC support services. Quarterly technical progress report No. 16, 15 February 1982-14 May 1982

    SciTech Connect

    Not Available

    1982-05-01

    Technical progress is reported in the area of OTEC program survey, analysis, evaluation, and recommendation concerning program performance, including OTEC commercialization support and program technical engineering and instrumentation analysis. Progress is also reported in the areas of program technical monitoring, OTEC system integration, and transmission subsystem considerations. Participation in meetings, conferences, etc. is also reported. (LEW)

  10. OTEC support services. Quarterly technical progress report No. 18, 15 August 1982-14 November 1982

    SciTech Connect

    Not Available

    1982-11-01

    After a brief description of the technical engineering and management support services for the OTEC Program and of the task objectives, technical progress is reported in the areas of: survey, analysis, and evaluation; program technical monitoring; and transmission subsystem subsytem considerations. (LEW)

  11. OTEC support services quarterly technical progress report No. 14, 15 August 1981-14 November 1981

    SciTech Connect

    1981-11-01

    The progress in the areas of system integration, system engineering, and management services is reported. The effort is divided into seven tasks: survey, analysis, and evaluation of technical program status; program technical monitoring; development and implementation of methodology for identification, evaluation, and trade-off for major subsystem configurations; technical assessments; OTEC system integration; environment and siting considerations; and transmission subsystem considerations. (LEW)

  12. Methyl chloride via oxyhydrochlorination of methane. Quarterly technical progress report No. 10, January 1944--March 1994

    SciTech Connect

    1994-08-01

    In work related to the design and construction of the Process Development Unit (PDU) this quarter involved further detail design and a real start to the construction activities. Status updates are given below for each discipline in the Task 2.0 and 3.0 headings. This work is progressing well. with the caveat of several small slips in the scheduling. On the catalyst development front this quarter was extremely productive. Many catalyst screening experiments were completed and they showed that control of the reaction exotherm is going to be quite challenging under PDU conditions. The presence of much more efficient reactor design and the ability to maintain closer to isothermal conditions is expected to give a significant advantage in actual PDU operation. A major concern at the moment is the cost of La in the catalyst being used. An action plan to remedy this is being put together.

  13. [Geothermal system temperature-depth database and model for data analysis]. 5. quarterly technical progress report

    SciTech Connect

    Blackwell, D.D.

    1998-04-25

    During this first quarter of the second year of the contract activity has involved several different tasks. The author has continued to work on three tasks most intensively during this quarter: the task of implementing the data base for geothermal system temperature-depth, the maintenance of the WWW site with the heat flow and gradient data base, and finally the development of a modeling capability for analysis of the geothermal system exploration data. The author has completed the task of developing a data base template for geothermal system temperature-depth data that can be used in conjunction with the regional data base that he had already developed and is now implementing it. Progress is described.

  14. FETC/EPRI Biomass Cofiring Cooperative Agreement. Quarterly technical report, April 1-June 30, 1997

    SciTech Connect

    Hughes, E.; Tillman, D.

    1997-12-01

    The FETC/EPRI Biomass Cofiring Program has accelerated the pace of cofiring development by increasing the testing activities plus the support activities for interpreting test results. Past tests conducted and analyzed include the Allen Fossil Plant and Seward Generating Station programs. On-going tests include the Colbert Fossil Plant precommercial test program, the Greenidge Station commercialization program, and the Blount St. Station switchgrass program. Tests in the formative stages included the NIPSCO cofiring test at Michigan City Generating Station. Analytical activities included modeling and related support functions required to analyze the cofiring test results, and to place those results into context. Among these activities is the fuel availability study in the Pittsburgh, PA area. This study, conducted for Duquesne Light, supports their initial investigation into reburn technology using wood waste as a fuel. This Quarterly Report, covering the third quarter of the FETC/EPRI Biomass Cofiring Program, highlights the progress made on the 16 projects funded under this cooperative agreement.

  15. Wetland treatment of oil and gas well wastewaters. Quarterly technical report, August 25--November 24, 1992

    SciTech Connect

    Kadlec, R.H.; Srinivasan, K.R.

    1992-12-24

    In this quarterly report, results of efforts on Tasks 2 and 3 are presented and discussed. Construction of a laboratory-type wetland (green house) has been begun and this undertaking is described in this report. The literature search has shown that clay amendments to wetlands are beginning to be used in Europe for P removal in agricultural drainage systems. The authors have undertaken similar studies on the use of inexpensive amendments to wetlands such as modified-clays and algae to enhance the performance of a constructed wetland for the treatment of oil and gas well wastewaters. The results from these studies are presented and analyzed in this report. Further, the literature search (nominally completed under Task 1) unearthed more recent studies (some unpublished) and a summary is included in this quarterly report.

  16. Reliability Information Analysis Center 1st Quarter 2007, Technical Area Task (TAT) Report

    DTIC Science & Technology

    2007-02-05

    Propeller Reliability and Maintenance Support 0008 NASA Marshall Space Flight Center Failure Mode & Effects Analysis CONTRACT HC1047-05-D-4005 3...11 7C MSFC, AL 35812 SUBJECT: NASA Marshall Space Flight Center Failure Mode & Effects Analysis Program Quarterly Report under Contract No. HC 1047-05...Block Diagram for NERVA. Reviewed with NASA Marshall and NASA Los Alamos. Failure Modes have been developed and agreed to with NASA. The Failure Modes

  17. SRC-1 solvent-refined coal. Quarterly technical report, January-March 1980

    SciTech Connect

    Not Available

    1980-01-01

    Four papers in this quarterly report have been entered individually into EDB and ERA. They deal with reducing organic solvent losses in the Kerr-McGee solvent deashing process; with the design of heaters for the process (which involved determining the temperature dependence of the enthalpy of the organic solvent, coal and hydrogen mixture); with a review of the carbon dioxide greenhouse effect on global climates; and with a methodology for fractionating and evaluating the coal liquids produced. (LTN)

  18. [Establishment and support of the International Power Institute]. Quarterly technical progress report, October--December, 1997

    SciTech Connect

    Coles, J.E.

    1998-04-02

    This is the quarterly report of the International Power Institute for October--December 1997. The topics of the report include pre-cooperative agreement activities, a discussion of the deputy director position, the IPI brochure, exploration of collaborative arrangements, formation of the IPI advisory board, a review of the advisory board meeting, report of a meeting with African electric utility executives, report of a visit to South Africa to explore a collaborative relationship.

  19. Quarterly Performance/Technical Report of the National Marrow Donor Program

    DTIC Science & Technology

    2011-01-28

    quarter 2011: o KIR-DS, CIBMTR Sample Tracking Application , 09 MRD Study • All Audit Recipient module development milestones are complete...CSS Custom Search Support PSA Public Service Announcement CT Confirmatory Testing PT Proficiency Testing CTA Clinical Trial Application QAMS Quality...the first week of October 2010 with a Recovery Time of 42 hours. Tier 1 is comprised of the following Core Business critical applications and

  20. OTEC support services. Quarterly technical progress report No. 8, February 15-May 14, 1980

    SciTech Connect

    Lipari, M. V.

    1980-05-01

    Technical engineering and management support services provided by the VSE Corporation for the Ocean Thermal Energy Conversion Program of the Ocean Systems Branch, Division of Central Solar Technology are reported. Tasks include: (1) survey, analysis, evaluation, and recommendation concerning program performance; (2) program technical monitoring; (3) development and implementation of methodology to identify and evaluate program alternatives; (4) technical assessments; (5) OTEC system integration; (6) environment and siting considerations; and (7) transmission subsystem considerations. (WHK)

  1. Evaluation of commercially available aqueous batch immersion cleaning products. Technical report

    SciTech Connect

    Bevilacqua, P.; Clark, K.G.

    1996-01-10

    With the production of Class I Ozone Depleting Substances scheduled to cease in January 1996, it has become necessary to identify suitable replacements for chlorofluorocarbon (CFC-113, Freon 113) vapor degreasing operations currently used to clean avionics components in Navy aircraft maintenance facilities. In this study, one potential option, the use of aqueous cleaning agents, was explored. Commercially available industrial aqueous cleaning agents were evaluated for cleaning capability on simulated operational soils and effects on aircraft materials. Two cleaning agents, Armakleen 2001 and Crest ABS 901, were recommended as a result of this work, and a Military Specification was drafted outlining performance requirements.

  2. 500 MW demonstration of advanced wall-fired combustion techniques for the reduction of nitrogen oxide (NO{sub x}) emissions from coal-fired boilers. Technical progress report, second quarter 1994, April 1994--June 1994

    SciTech Connect

    1995-09-01

    This quarterly report discusses the technical progress of an Innovative Clean Coal Technology (ICCT) demonstration of advanced wall-fired combustion techniques for the reduction of nitrogen oxide (NOx) emissions from coal-fired boilers. The project is being conducted at Georgia Power Company`s Plant Hammond Unit 4 located near Rome, Georgia. The primary goal of this project is the characterization of the low NOx combustion equipment through the collection and analysis of long-term emissions data. A target of achieving fifty percent NOx reduction using combustion modifications has been established for the project. The project provides a stepwise retrofit of an advanced overfire air (AOFA) system followed by low NOx burners (LNB). During each test phase of the project, diagnostic, performance, long-term, and verification testing will be performed. These tests are used to quantify the NOx reductions of each technology and evaluate the effects of those reductions on other combustion parameters. Results are described.

  3. Identification and Evaluation of Fluvial-Dominated Deltaic Reservoirs. Quarterly technical report, January 1-March 31, 1997

    SciTech Connect

    Banken, M.K.; Andrews, R.

    1997-09-12

    This document is provided as a Quarterly Technical Progress Report for the program entitled `Identification and Evaluation of Fluvial- Dominated Deltaic (Class 1 Oil) Reservoirs in Oklahoma`, covering the reporting period of January 1 - March 31, 1997. Work is progressing as expected for the project. The FDD computer facility is fully operational. During this quarter, there were 28 industry `visits` to use the facility. The Red Fork Play workshop was completed on March 5 in Norman, and on March 12, 1997 in Bartlesville, with a total of 195 attendees. The Tonkawa Play workshop is scheduled for July 9, 1997 in Norman. The Tonkawa text, figures, maps, and plates are in preparation. The Bartlesville workshop is scheduled for October, 1997, although the exact time and place have yet to be determined. Regional work and field studies for that play are in progress. This project is serving an extremely valuable role in the technology transfer activities for the Oklahoma petroleum industry, with very positive industry feedback.

  4. Coal-fired MHD combustor development project: Phase IIIB. First quarterly technical progress report, 13 January-30 April 1982

    SciTech Connect

    1982-05-20

    The first quarterly technical progress report of the Coal-Fired MHD Combustor Development Project (Phase IIIB) presents the accomplishments during the period 13 January to 30 April, 1982. The scope of work covered by this quarterly report relates to those tasks associated with preparing the TRW 20 MW/sub t/ MHD coal combustor for delivery to AERL for integrated power tests and the work associated with the preliminary design of a 50 MW/sub t/ coal-fired combustor. Progress during this reporting period is described. All new 20 MW/sub t/ hardware was designed and fabricated. Interface coordination meetings were conducted with AERL and DOE. Interface control drawings were completed and a 20 MW/sub t/ coal combustion User's manual was delivered to AERL. The User's manual contained a shipping plan, a crew training plan, an assembly manual, interface documentation and recommended operating procedures. Facility/combustor set-up was completed and the pre-delivery 20 MW/sub t/ coal combustor qualification test series was completed. The 50 MW/sub t/ coal-fired MHD combustor preliminary designs were finalized and the DOE preliminary design review (PDR) was successfully completed.

  5. OTEC support services. Quarterly technical progress report No. 20, 15 February - 14 May 1983

    SciTech Connect

    Not Available

    1983-01-01

    The following task areas are described briefly for the system integration, system engineering, and management services provided for the OTEC program: (1) survey, analysis and evaluation; (2) program technical monitoring; (3) development and implementation of methodology; (4) technical assessment; (5) OTEC systems integration; (6) environment and siting considerations; and (7) transmission subsystem considerations.

  6. OTEC support services. Quarterly technical progress report No. 21, 15 May-15 August 1983

    SciTech Connect

    Not Available

    1983-09-01

    Progress is reported on the system integration, system engineering, and management services for the OTEC program under the following tasks: (1) survey, analysis, and evaluation; (2) program technical monitoring; (3) development and implementation of methodology; (4) technical assessments; (5) OTEC systems integration; (6) environment and siting considerations; and (7) transmission subsystem considerations.

  7. Development and Evaluation of an Experimental Curriculum for the New Quincy (Mass.) Vocational-Technical School. First Quarterly Technical Report.

    ERIC Educational Resources Information Center

    Morrison, Edward J.

    Technical activity from April 1 through June 30, 1965 was concentrated in behavior analysis and guidance program development. The behavior analysis involved identifying 1,051 jobs as candidates for inclusion in the training program and grouping them into 30 sub-families on the basis of task similarities. Data necessary for decision to include the…

  8. Regulatory and technical reports (abstract index journal): Compilation for third quarter 1994, July--September. Volume 19, Number 3

    SciTech Connect

    1994-12-01

    This compilation consists of bibliographic data and abstracts for the formal regulatory and technical reports issues by the U.S. Nuclear Regulatory Commission (NRC) Staff and its contractors. It is NRC`s intention to publish this compilation quarterly and to cumulate it annually. The main citations and abstracts in this compilation are listed in NUREG number order: NUREG-XXXX, NUREG/CP-XXXX, NUREG/CR-XXXX, and NUREG/IA-XXXX. These precede the following indexes: Secondary Report Number Index, Personal Author Index, Subject Index, NRC Originating Organization Index (Staff Reports), NRC Originating Organization Index (International Agreements), NRC Contract Sponsor Index (Contractor Reports) Contractor Index, International Organization Index, Licensed Facility Index. A detailed explanation of the entries precedes each index.

  9. Regulatory and technical reports (abstract index journal): Compilation for third quarter 1996 July--September. Volume 21, Number 3

    SciTech Connect

    1997-02-01

    This compilation consists of bibliographic data and abstracts for the formal regulatory and technical reports issued by the US Nuclear Regulatory Commission (NRC) Staff and its contractors. It is NRC`s intention to publish this compilation quarterly and to cumulate it annually. The main citations and abstracts in this compilation are listed in NUREG number order: NUREG-XXXX, NUREG/CP-XXXX, NUREG/CR-XXXX, and NUREG/IA-XXXX. These precede the following indexes: secondary report number index; personal author index; subject index; NRC originating organization index (staff reports); NRC originating organization index (international agreements); NRC contract sponsor index (contractor reports); contractor index; international organization index; and licensed facility index. A detailed explanation of the entries precedes each index.

  10. Molecular biological enhancement of coal biodesulfurization. Quarterly technical report, September 1, 1993--November 30, 1993

    SciTech Connect

    Kilbane, J.J. II

    1993-12-31

    IGT has developed a microbial culture of Rhodococcus rhodochrous, designated as IGTS8, that is capable of specifically cleaving carbon-sulfur bonds in a range of organosulfur model compounds and is capable of removing organic sulfur from coal and petroleum without significantly sacrificing the calorific value of the fuel. Although IGTS8 possesses the ability to specifically remove organic sulfur from coal, a major research need is to develop improved strains of microorganisms that possess higher levels of desulfurization activity and therefore will permit more favorable biodesulfurization process conditions: faster rates, more complete removal, and smaller reactor size. strain improvement is the single most important aspect to the development of a practical coal biodesulfurization process and accordingly is the focus of research in this project. During this quarter the promoter probe vectors that were constructed last quarter were found to be unstable in E. coli. Fragments of R. rhodochrous IGTS8 chromosomal DNA were cloned into pRCAT3 and pRCM1 (previously described in final ICCI report 1993). Many derivatives of pRCM1 and pRCAT3 receiving inserts that regulated the expression of chloramphenicol resistance in Rhodococcus rhodochrous IGTS8 proved to be unstable in E. coli frequently yielding plasmids containing deletions. Stable inserts have been observed ranging from 100 bp to 2.0 kb that regulated expression in Rhodococcus rhodochrous IGTS8. Subtractive hybridization studies continue, several candidates have been isolated and are being confirmed for inducible promoters. Primer extension analysis of the Rhodococcus rhodochrous IGTS8 16S RNA promoter region was initiated this quarter.

  11. Nucla circulating atmospheric fluidized bed demonstration project. Quarterly technical progress report, October--December 1990

    SciTech Connect

    Not Available

    1991-01-31

    During the fourth quarter of 1990, steady-state performance testing at the Nucla Circulating Fluidized Bed (CFB) resumed under sponsorship of the US Department of Energy. Co-sponsorship of the Demonstration Test Program by the Electric Power Research Institute (EPRI) was completed on June 15, 1990. From October through December, 1990, Colorado-Ute Electric Association (CUEA) completed a total of 23 steady-state performance tests, 4 dynamic tests, and set operating records during November and December as the result of improved unit operating reliability. Highlight events and achievements during this period of operation are presented.

  12. FETC/EPRI Biomass Cofiring Cooperative Agreement. Quarterly technical report, July 1-September 30, 1997

    SciTech Connect

    Hughes, E.; Tillman, D.

    1997-12-01

    The FETC/EPRI Biomass Cofiring Program has completed one year of activity, accelerating the pace of cofiring development. Cofiring tests were completed at the Seward Generating Station of GPU Genco and at the Michigan City Generating Station of NIPSCO. The NYSEG work at Greenidge Station resulted in a workable, low cost method for injecting biofuels into coal-fired PC boilers. Support studies and modeling continued to provide analytics for the cofiring program. This report summarizes the activities during the fourth quarter of the FETC/EPRI Biomass Cofiring Cooperative Agreement. It focuses upon the results of testing in order to highlight the progress at utilities.

  13. Robotic weld overlay coatings for erosion control. Quarterly technical progress report, April 1993--June 1993

    SciTech Connect

    Levin, B.F.; Dupont, J.N.; Marder, A.R.

    1993-07-20

    Twelve weld overlay hardfacing alloys have been selected for preliminary erosion testing based upon a literature review. Four of the selected coatings were deposited on a 1018 steel substrate using plasma arc welding process. During the past quarter, the remaining eight coatings were deposited in the same manner. Ten samples from each coatings were prepared for erosion testing. Microstructural characterization of each coating is in progress. This progress report describes coating deposition and sample preparation procedures. Relation between coatings hardness and formation of cracks in coatings is discussed.

  14. Novel concepts in electrochemical solar cells. Quarterly technical progress report, December 15, 1980-March 15, 1981

    SciTech Connect

    Not Available

    1981-01-01

    During the past quarter, the following areas were emphasized: (a) characterization of redox couples with very positive potentials in room-temperature AlCl/sub 3/-BPC electrolytes and comparison of the electrochemical behavior of decamethyl ferrocene in these electrolytes with the previously-studied ferrocene/ferricenium ion couple, (b) photoelectrochemical characterization of CdSe thin-film anodes in aqueous polysulfide electrolytes and (c) refinement of the admittance measurement technique for extraction of Mott-Schottky parameters. The results of research in these areas are detailed in turn below.

  15. A study of multistage/multifunction column for fine particle separation. Quarterly technical progress report, January 1, 1996-- March 31, 1996

    SciTech Connect

    Chiang, Shiao-Hung

    1996-04-20

    The overall objective of the proposed research program is to explore the potential application of a new invention involving a multistage column equipped with vortex-inducing loop-flow contactors (hereafter referred to as the multistage column) for fine coal cleaning process. The research work will identify the design parameters and their effects on the performance of the separation process. The results of this study will provide an engineering basis for further development of this technology in coal cleaning and in the general areas of fluid/particle separation. In the last quarter, we investigated the mixing and loop flow (circulation) behaviors around the contactors. In this quarter, the fine coal beneficiation tests were carried out in the multistage column and conventional column.

  16. MIT Clean Energy Prize: Final Technical Report May 12, 2010 - May 11, 2011

    SciTech Connect

    Snyder, Chris; Campbell, Georgina; Salony, Jason; Aulet, Bill

    2011-08-09

    The MIT Clean Energy Prize (MIT CEP) is a venture creation and innovation competition to encourage innovation in the energy space, specifically with regard to clean energy. The Competition invited student teams from any US university to submit student-led ventures that demonstrate a high potential of successfully making clean energy more affordable, with a positive impact on the environment. By focusing on student ventures, the MIT CEP aims to educate the next generation of clean energy entrepreneurs. Teams receive valuable mentoring and hard deadlines that complement the cash prize to accelerate development of ventures. The competition is a year-long educational process that culminates in the selection of five category finalists and a Grand Prize winner and the distribution of cash prizes to each of those teams. Each entry was submitted in one of five clean energy categories: Renewables, Clean Non-Renewables, Energy Efficiency, Transportation, and Deployment.

  17. Advanced reservoir characterization and evaluation of CO{sub 2} gravity drainage in the naturally fractured Spraberry reservoir. Quarterly technical report, April 1, 1996--June 30, 1996

    SciTech Connect

    Schechter, D.

    1996-11-01

    Progress has been made in the area of laboratory analysis of Spraberry oil/brine/rock interactions during this quarter. Water imbibition experiments were conducted under ambient conditions, using cleaned Spraberry cores, synthetic Spraberry reservoir brine, and Spraberry oil. It has been concluded that the Spraberry reservoir cores are weakly water-wet. The average Amott wettability index to water is about 0.55. The average oil recovery due to spontaneous water imbibition is about 50% of original oil in place.

  18. Rheology of coal-water slurries prepared by the HP roll mill grinding of coal. Quarterly technical progress report No. 10, December 1, 1994--February 28, 1995

    SciTech Connect

    Fuerstenau, D.W.

    1995-03-01

    The research during this quarter was, directed towards: (1) systematic study of preparation of coal fines by high-pressure roll mill grinding and by high-pressure roll mill/ball mill hybrid grinding, (2) investigation of the rheological behavior of slurries prepared with fines produced by these techniques, and (3) study of the effect of coal cleaning on both short term and long term slurry rheology. Results are discussed.

  19. Mild coal pretreatment to improve liquefaction reactivity. Quarterly technical progress report, September--November 1991

    SciTech Connect

    Miller, R.L.

    1991-12-31

    This report describes work completed during the fifth quarter of a three year project to study the effects of mild chemical pretreatment on coal dissolution reactivity during low severity liquefaction or coal/oil coprocessing. The overall objective of this research is to elucidate changes in the chemical and physical structure of coal by pretreating with methanol or other simple organic solvent and a trace amount of hydrochloric acid and measure the influence of these changes on coal dissolution reactivity. Work this quarter focused on analytical characterization of untreated and treated Wyodak subbituminous coal and Illinois {number_sign}6 bituminous coal. Mossbauer spectroscopy and x-ray diffraction techniques were used to study the effect of methanol/HCl pretreatment on the composition of each coal`s inorganic phase. Results from these studies indicated that calcite is largely removed during pretreatment, but that other mineral species such as pyrite are unaffected. This finding is significant, since calcite removal appears to directly correlate with low severity liquefaction enhancement. Further work will be performed to study this phenomenon in more detail.

  20. Investigation and demonstration of dry carbon-based sorbent injection for mercury control. Quarterly technical report, April 1--June 30, 1996

    SciTech Connect

    Hunt, T.; Sjostrom, S.; Smith, J.; Chang, R.

    1996-07-27

    The overall objective this two phase program is to investigate the use of dry carbon-based sorbents for mercury control. During Phase 1, a bench-scale field test device that can be configured as an electrostatic precipitator, a pulse-jet baghouse, or a reverse-gas baghouse has been designed and will be integrated with an existing pilot-scale facility at PSCo`s Comanche Station. Up to three candidate sorbents will then be injected into the flue gas stream upstream of the test device to determine the mercury removal efficiency for each sorbent. During the Phase 11 effort, component integration for the most promising dry sorbent technology (technically and economically feasible) shall be tested at the 5000 acfm pilot-scale. An extensive work plan has been developed for the project. Three sorbents will be selected for evaluation at the facility through investigation, presentation, and discussion among team members: PSCO, EPRI, ADA, and DOE. The selected sorbents will be tested in the five primary bench-scale configurations: pulse `et baghouse, TOXECON, reverse-gas baghouse, electrostatic precipitator, and an ESP or fabric filter `with no Comanche ash in the flue gas stream. In the EPRI TOXECON system, mercury sorbents will be injected downstream of a primary particulate control device, and collected in a pulse-jet baghouse operated at air-to-cloth ratios of 12 to 16 ft/min, thus separating the mercury and sorbent from the captured flyash. In the no-ash configuration, an external flyash sample will be injected into a clean gas stream to investigate possible variations in sorbent effectiveness in the presence of different ashes. The use of an existing test facility, a versatile design for the test fixture, and installation of a continuous mercury analyzer will allow for the completion of this ambitious test plan. The primary activity during the quarter was to complete fabrication and installation of the facility.

  1. Decontamination systems information and research program. Quarterly technical progress report, October 1--December 31, 1992

    SciTech Connect

    Not Available

    1993-01-01

    It is estimated that over 3700 hazardous waste sites are under the jurisdiction of the Department of Energy (DOE). These sites were primarily generated from 45 years worth of environmental pollution from the design and manufacture of nuclear materials and weapons, and contain numerous types of wastes including: (1) volatile, low-volatile and nonvolatile organics, (2) radionuclides (e.g., uranium, plutonium and cesium), (3) nonradioactive heavy metals (e.g., chromium, nickel, and lead), and (4) toxic chemicals. These contaminants affect several media including soils (saturated and unsaturated), groundwater, vegetation, and air. Numerous and diverse DOE hazardous waste sites can be enumerated from soils contaminated by organics such as trichloroethylene (TCE) and perchloroethylene (PCE) at the Savannah River site to biota and vegetation contaminated by radionuclides such as radiocesium and radiostrontium at the Oak Ridge site. Over the next 30 years, the Department of Energy (DOE) is committed to bringing all its facilities into compliance with applicable Federal, State, and local environmental laws and regulations. This clean-up task is quite complex involving numerous sites containing various radioactive, organic and inorganic contaminants. To perform this clean-up effort in the most efficient manner at each site will require that DOE managers have access to all available information on pertinent technologies; i.e., to aid in maximum technology transfer. The purpose of this effort is to systematically develop a databast of those currently available and emerging clean-up technologies.

  2. POC-scale testing of an advanced fine coal dewatering equipment/technique. Quarterly technical progress report No. 5, October--December, 1995

    SciTech Connect

    Groppo, J.G.; Parekh, B.K.

    1996-02-01

    Froth flotation technique is an effective and efficient process for recovering of ultra-fine (minus 74{mu}m) clean coal. Economical dewatering of an ultrafine clean coal product to a 20% level moisture will be an important step in successful implementation of the advanced cleaning processes. The main objective of the proposed program is to evaluate a novel surface modification technique, which utilizes the synergistic effect of metal ions-surfactant combination, for dewatering of ultra-fine clean coal on a proof-of-concept scale of 1 to 2 tph. The novel surface modification technique developed at the the University of Kentucky Center for Applied Energy Research will be evaluated using vacuum, centrifuge, and hyperbaric filtration equipment. Dewatering tests will be conducted using the fine clean coal froth produced by the column flotation units at the Powell Mountain Coal Company, Mayflower Preparation Plant in St. Charles, Virginia. The POC-scale studies will be conducted on two different types of clean coal, namely, high sulfur and low sulfur clean coal. Accomplishments for the past quarter are described.

  3. Air Cleaning Devices for HVAC Supply Systems in Schools. Technical Bulletin.

    ERIC Educational Resources Information Center

    Wheeler, Arthur E.

    Guidelines for maintaining indoor air quality in schools with HVAC air cleaning systems are provided in this document. Information is offered on the importance of air cleaning, sources of air contaminants and indoor pollutants, types of air cleaners and particulate filters used in central HVAC systems, vapor and gas removal, and performance…

  4. Clean ferrous casting technology research. Final technical report, September 29, 1993--December 31, 1995

    SciTech Connect

    Piwonka, T.S.

    1996-01-01

    This report details results of a 30-month program to develop methods of making clean ferrous castings, i.e., castings free of inclusions and surface defects. The program was divided into 3 tasks: techniques for producing clean steel castings, electromagnetic removal of inclusions from ferrous melts, and study of causes of metal penetration in sand molds in cast iron.

  5. Dewatering studies of fine clean coal. Technical report, September 1, 1991--November 30, 1991

    SciTech Connect

    Parekh, B.K.

    1991-12-31

    Physical cleaning of ultra-fine coal using an advanced froth flotation technique provides a low ash product, however, the amount of water associated with clean coal is high. Economic removal of water from the froth will be important for commercial applicability of advanced froth flotation processes. The main objective of the present research program is to study and understand the dewatering characteristics of ultra-fine clean coal and to develop the process parameters to effectively reduce the moisture to less than 20 percent in the clean coal product. The research approach under investigation utilizes synergistic effects of metal ions and surfactant to lower the moisture of clean coal using a conventional vacuum dewatering technique. During the last year`s effort, it was reported that a combination of metal ion and surfactant provided a 22 percent moisture filter cake.

  6. Fischer Tropsch synthesis in supercritical fluids. Quarterly technical progress report, October 1, 1993--December 31, 1993

    SciTech Connect

    Akgerman, A.; Bukur, D.B.

    1993-12-31

    Objectives for the first quarter for Task A, Diffusion Coefficients of F-T Products in Supercritical Fluids, were to measure diffusion coefficients of 1-tetradecene in subcritical propane and the diffusion coefficients of 1-octene and 1-tetradecene in subcritical propane and the diffusion coefficients of 1-octene and 1-tetradecene in subcritical and supercritical ethane. We planned to use ethane as a solvent because its lower critical temperature enabled measurements without modification of the existing unit. Our objective was to investigate the behavior of the diffusion coefficients in crossing from subcritical to supercritical conditions. Objectives for Task B, Fischer Tropsch reaction related studies, were: (1) to install and test the temperature probe and the flammable gas detector: (2) to conduct Fischer-Tropsch experiments at baseline conditions and at a high pressure in order to test the newly constructed fixed bed reactor assembly. Accomplishments and problems, are presented.

  7. Pulsed atmospheric fluidized bed combustion. Quarterly technical progress report, July 1992--September 1992

    SciTech Connect

    Not Available

    1992-10-01

    The design of the Pulsed Atmospheric Fluidized Bed Combustor (PAFBC) as described in the Quarterly Report for the period April--June, 1992 was reviewed and minor modifications were included. The most important change made was in the coal/limestone preparation and feed system. Instead of procuring pre-sized coal for testing of the PAFBC, it was decided that the installation of a milling system would permit greater flexibility in the testing with respect to size distributions and combustion characteristics in the pulse combustor and the fluid bed. Particle size separation for pulse combustor and fluid bed will be performed by an air classifier. The modified process flow diagram for the coal/limestone handling system is presented in Figure 1. The modified process flow diagrams of the fluidized bed/steam cycle and ash handling systems are presented in Figures 2 and 3, respectively.

  8. Commercialization of atom interferometers for borehole gravity gradiometry. Quarterly technical progress report, October--December 1992

    SciTech Connect

    Clauser, J.F.

    1993-01-30

    Perform a mathematical analysis of the tomography inversion problem for various configurations of a borehole gravity gradiometer. Our simulations typically call for logging a hole for about 4km of depth. Within the limits imposed by our presumed detector sensitivity, the device appears to be capable of measuring the 0.1 g/cm{sup 3} density in all rings to about 10% accuracy, with the rings extending out to about 500 meters from the hole. At this range, the vertical resolution has dropped to about 50m. Closer to the hole, the resolution improves so that we can determine the density in each of about 400 rings. We anticipate that this most important task (No. l) will be complete within the next quarter.

  9. Mild coal pretreatment to improve liquefaction reactivity. Quarterly technical progress report, June--August 1991

    SciTech Connect

    Miller, R.L.

    1991-12-31

    This report describes work completed during the fourth quarter of a three year project to study the effects of mild chemical pretreatment on coal dissolution reactivity during low severity liquefaction or coal/oil coprocessing. The overall objective of this research is to elucidate changes in the chemical and physical structure of coal by pretreating with methanol or other simple organic solvent and a trace amount of hydrochloric acid and measure the influence of these changes on coal dissolution reactivity. This work is part of a larger effort to develop a new coal liquefaction or coal/oil coprocessing scheme consisting of three main process steps: (1) mile pretreatment of the feed coal to enhance dissolution reactivity and dry the coal, (2) low severity thermal dissolution of the pretreated coal to obtain a very reactive coal-derived residual material amenable to upgrading, and (3) catalytic upgrading of the residual products to distillate liquids.

  10. Development of analytical procedures for coprocessing. Quarterly technical progress report, April 1, 1991--June 30, 1991

    SciTech Connect

    Green, J.B.; Anderson, R.P.

    1991-07-01

    The overall objective of the contract is to improve understanding of the fundamental chemistry of coprocessing. A primary objective is to evaluate methods to distinguish between compound classes originating from coal versus those originating from petroleum resid while a corollary objective is to provide detailed knowledge on the composition of coprocessing products. This and the prior quarterly report summarize work conducted in support of the latter objective in which process development unit samples produced by HRI, Inc. were subjected to detailed analysis. Coprocessing resid samples selected for detailed analysis were made under constant conditions except for variations in coal concentration or in the coal (New Mexico subbituminous or Texas lignite). Separation of the resids into acid, base, saturate, and neutral-aromatic subtractions, separation of the neutral-aromatics by ring number and high temperature gas chromatography were discussed in the previous quarterly. This report includes results of nonaqueous titrations, elemental analyses and infrared spectroscopy. The hydrocarbon skeletons of saturated hydrocarbons in the coprocessing resids appear to be fundamentally different than those of aromatic species. Neutral-aromatic fractions contain minor levels of sulfur compounds, an unknown proportion of ether or other oxygen-containing species, and major concentrations of aromatic hydrocarbons containing from 3 to 7 aromatic rings. Base fractions contain predominantly single nitrogen compounds of azaarene or aminoaromatic type. Aminoaromatics (compounds analogous to aniline) are present in significant amounts in products made from New Mexico subbituminous coal but are nearly absent in the Texas lignite product. Acid fractions contain appreciable quantities of pyrrolic benzologs, but surprisingly low concentrations of compounds with a free OH group.

  11. OTEC support services. Quarterly technical progress report No. 9, 15 May-14 August 1980

    SciTech Connect

    1980-08-01

    System integration, system engineering, and management support services provided by the VSE Corporation for the Ocean Thermal Energy Conversion Program of the Ocean Systems Branch, Division of Central Solar Technology, DOE are described. The services are provided under seven task areas: (1) survey, analysis, evaluation, and recommendation concerning program performance; (2) program technical monitoring; (3) development and implementation of methodology to identify and evaluate program alternatives; (4) technical assignments; (5) OTEC system integration; (6) environment and siting considerations; and (7) transmission subsystem considerations. (WHK)

  12. Clean, premium-quality chars: Demineralized and carbon enriched. Quarterly report, September 1, 1991--Novemer 30, 1991

    SciTech Connect

    Smith, G.V.

    1992-01-03

    The goal of this project is to develop a bench-scale procedure to produce clean, desulfurized, premium-quality chars from the Illinois basin coals. This goal is achieved by utilizing the effective capabilty of smectites in combination with methane to manipulate the char yields. The major objectives are: to determine the optimum water- ground particle size for the maximum reduction of pyrite and minerals by the selective-bitumen agglomeration process; to evaluate the type of smectite and its interlamellar cation which enhances the premium-quality char yields; to find the mode of dispersion of smectites in clean coal which retards the agglomeration of char during mild gasification; to probe the conditions that maximize the desulfurized clean-char yields under a combination of methane+oxygen or helium+oxygen; to characterize and accomplish a material balance of chars, liquids, and gases produced during mild gasification; to identify the conditions which reject dehydrated smectites from char by the gravitational separation technique; and to determine the optimum seeding of chars with polymerized maltene for flammability and transportation.

  13. Bench-scale testing of the micronized magnetite process. Eighth quarterly technical progress report, April--June, 1996

    SciTech Connect

    1996-08-13

    The major focus of the project is to install and test a 500 lbs./hr. fine-coal cleaning circuit at DOE`s Process Research Facility (PRF), located at the Pittsburgh Energy Technology Center (PETC). The circuit will utilize an extremely fine, micron-sized magnetite media and small diameter cyclones to make efficient density separations on minus-28-Mesh coal. The circuit consists of three subcircuits: Classification Circuit; Dense-Medium Cycloning Circuit; and Magnetite Recovery Circuit. The testing scope involves initial closed-loop testing of each subcircuit to optimize the performance of the equipment in each subcircuit (i.e., Component Testing), followed by open-circuit testing of the entire integrated circuit to optimize the process and quantify the process efficiency (i.e., Integrated Testing). This report contains a short discussion of the project description, objectives, budget, schedule, and teaming arrangement. It also includes a detailed discussion of the above mentioned project accomplishments and plans, organized by the various task series within the project work plan. The final section contains an outline of the specific project goals for the next quarterly reporting period.

  14. Bench-scale testing of the micronized magnetite process. Seventh quarterly technical progress report, January--March, 1996

    SciTech Connect

    1996-08-13

    The major focus of the project is to install and test a 500 lbs./hr. fine-coal cleaning circuit at DOE`s Process Research Facility (PRF), located at the Pittsburgh Energy Technology Center (PETC). The circuit will utilize an extremely fine, micron-sized magnetite media and small diameter cyclones to make efficient density separations on minus-28-Mesh coal. The circuit consists of three subcircuits: Classification Circuit; Dense-Medium Cycloning Circuit; and Magnetite Recovery Circuit. The testing scope involves initial closed-loop testing of each subcircuit to optimize the performance of the equipment in each subcircuit (i.e., Component Testing), followed by open-circuit testing of the entire integrated circuit to optimize the process and quantify the process efficiency (i.e., Integrated Testing). This report contains a short discussion of the project description, objectives, budget, schedule, and teaming arrangement. It also includes a detailed discussion of the above mentioned project accomplishments and plans, organized by the various task series within the project work plan. The final section contains an outline of the specific project goals for the next quarterly reporting period.

  15. Bench-scale testing of the micronized magnetite process. Sixth quarterly technical progress report, October--December, 1995

    SciTech Connect

    1996-08-13

    The major focus of the project is to install and test a 500 lbs./hr. fine-coal cleaning circuit at DOE`s Process Research Facility (PRF), located at the Pittsburgh Energy Technology Center (PETC). The circuit will utilize an extremely fine, micron-sized magnetite media and small diameter cyclones to make efficient density separations on minus-28-Mesh coal. The circuit consists of three subcircuits: Classification Circuit; Dense-Medium Cycloning Circuit; and Magnetite Recovery Circuit. The testing scope involves initial closed-loop testing of each subcircuit to optimize the performance of the equipment in each subcircuit (i.e., Component Testing), followed by open-circuit testing of the entire integrated circuit to optimize the process and quantify the process efficiency (i.e., Integrated Testing). This report contains a short discussion of the project description, objectives, budget, schedule, and teaming arrangement. It also includes a detailed discussion of the above mentioned project accomplishments and plans, organized by the various task series within the project work plan. The final section contains an outline of the specific project goals for the next quarterly reporting period.

  16. Decontamination Systems Information and Research Program. Quarterly technical progress report, July 1--September 30, 1993

    SciTech Connect

    Not Available

    1993-10-01

    Progress reports are presented for the following projects: systematic assessment of the state of hazardous waste clean-up technologies; site remediation technologies--drain-enhanced soil flushing (DESF) for organic contaminants removal; excavation systems for hazardous waste sites; chemical destruction of polychlorinated biphenyls; development of organic sensors--monolayer and multilayer self-assembled films for chemical sensors; Winfield Lock and Dam remediation; Winfield cleanup survey; assessment of technologies for hazardous waste site remediation--non-treatment technologies and pilot scale test facility implementation; assessment of environmental remediation storage technology; assessment of environmental remediation excavation technology; assessment of environmental remediation monitoring technology; and remediation of hazardous sites with steam reforming.

  17. Responsive copolymers for enhanced petroleum recovery. Quarterly technical progress report, December 22, 1992--March 21, 1993

    SciTech Connect

    Hester, R.; McCormick, C.

    1993-06-01

    The overall objective of this research is the development of advanced water-soluble copolymers for use in enhanced oil recovery which rely on reversible microheterogeneous associations for mobility control and reservoir conformance. Technical progress is summarized for the following tasks: advanced copolymer synthesis; characterization of molecular structure; and solution rheology.

  18. Technical progress report for the quarter 1 October-31 December 1980

    SciTech Connect

    Not Available

    1981-01-01

    This report describes the technical accomplishments on the commercial nuclear waste management programs and on the geologic disposal of nuclear wastes. The program is organized into eight tasks: systems, waste package, site, repository, regulatory and institutional, test facilities and excavations, land acquisition, and program management. (DLC)

  19. Amarillo National Resource Center for Plutonium. Quarterly technical progress report, May 1--July 31, 1998

    SciTech Connect

    1998-09-01

    Progress is reported on research projects related to the following: Electronic resource library; Environment, safety, and health; Communication, education, training, and community involvement; Nuclear and other materials; and Reporting, evaluation, monitoring, and administration. Technical studies investigate remedial action of high explosives-contaminated lands, radioactive waste management, nondestructive assay methods, and plutonium processing, handling, and storage.

  20. Responsive copolymers for enhanced petroleum recovery. Quarterly technical progress report, September 22, 1992--December 22, 1992

    SciTech Connect

    McCormick, C.; Hester, R.

    1992-12-31

    The overall goal of this research is the development of advanced water-soluble copolymers for use in enhanced oil recovery which rely on reversible microheterogeneous associations for mobility control and reservoir conformance. Technical progress is summarized for the following tasks: advanced copolymer synthesis; characterization of macromolecular structure and properties; and solution rheology in a porous media.

  1. Educational Technology Program. Quarterly Technical Summary, Period Ending 31 May 1970.

    ERIC Educational Resources Information Center

    Frick, Frederick C.

    An overview of the Lincoln Training System (LTS) and descriptions of the hardward and software of the LTS-1 and LTS-2 systems are provided. The overall program seeks to develop, test, and evaluate technical aids to vocational training systems. These are appropriate to this field because the high costs need to be reduced and because there are clear…

  2. A novel carbon-based process for flue gas cleanup. Fifth quarterly technical progress report, July 1--September 30, 1992

    SciTech Connect

    Gangwal, S.K.; Silveston, P.L.

    1992-10-01

    The objective of this project is to demonstrate the preliminary technical and economic feasibility of a novel carbon-based process for removal of at least 95% S0{sub 2} and at least 75 % NO{sub x}, from coal combustion flue gas. In the process, flue gas leaving the electrostatic precipitator (ESP) is passed through a trickle bed of activated carbon catalyst employing a periodic flush of low strength sulfuric acid. The S0{sub 2} is oxidized to S0{sub 3} and removed as medium strength sulfuric acid. The S0{sub 2}-free flue gas is then mixed with NH{sub 3}, and the NO{sub x} in the gas is subjected to selective catalytic reduction (SCR) to N{sub 2} over a fixed bed of activated carbon catalyst. In the previous four quarters, a detailed project management plan was prepared describing the experimental setup, work plan, and test plan. The experimental system was completed for SO{sub 2} conversion at Waterloo and for NO{sub x} conversion at Research Triangle Institute. Shakedown experiments were completed. The NO{sub x} removal performance of two additional modified carbon catalysts (MCCII and MCCIII) was studied. MCCII showed NO{sub 2} removal efficiency which was similar to that observed for MCCI. However, MCCIII was considerably less active for NO{sub x} removal. In the present quarter, further tests of MCCI were performed for SO{sub 2} removal with NO in the feed gas, except the reactor was operated at 130{degrees}C (instead of 80{degrees}C during previous tests). Tests were also performed with MCCII for NO removal with nominally 100 ppm SO{sub 2} in the feed gas.

  3. 76 FR 64010 - Special Rules Governing Certain Information Obtained Under the Clean Air Act: Technical Correction

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-10-17

    ...: Technical Correction AGENCY: Environmental Protection Agency (EPA). ACTION: Direct final rule. SUMMARY: The... technical difficulties and cannot contact you for clarification, the EPA may not be able to consider your... address: GHGReportingRule@epa.gov . For technical information and implementation materials, please go...

  4. Meeting today's challenges to supply tomorrow's energy. Clean fossil energy technical and policy seminar

    SciTech Connect

    2005-07-01

    Papers discussed the coal policy of China, Russia, Indonesia and Vietnam; clean coal technology (small-scale coal power plants, carbon capture and sequestration, new coking process SCOPE21, coal gasification (HyPr-RING), CO{sub 2} reduction technology, Supercritical coal-fired units and CFB boilers, EAGLE project, coal liquefaction), the coal consumer's view of clean fossil energy policy, and natural gas policy and technology. Some of the papers only consist of the presentation overheads/viewgraphs.

  5. Engineering development of advanced physical fine coal cleaning for premium fuel applications. Quarterly progress report No. 10, January--March 1995

    SciTech Connect

    Moro, N.; Shields, G.L.; Smit, F.J.; Jha, M.C.

    1995-04-27

    The primary goal of this project is the engineering development of two advanced physical fine coal cleaning processes, column flotation and selective agglomeration, for premium fuel applications. The project scope includes laboratory research and benchscale testing on six coals to optimize these processes, followed by design, and construction of a 2-t/hr process development unit (PDU). The PDU will then be operated to generate 200 ton lots of each of three project coals, by each process. The project began in October, 1992 and is scheduled for completion by June, 1997. During Quarter 10 (January--March, 1995), preliminary work continued for the Subtask 3.2 in-plant testing of the Microcel{trademark} flotation column at the Lady Dunn Preparation Plant. Towards this end, laboratory flotation testing and refurbishing of the column have been started. The final version of the Subtask 4.2 Advanced Flotation Process Optimization Research topical report was issued, as was a draft version of the Subtask 4.3 report discussing the formulation of coal-water slurry fuels (CWF) from advanced flotation products. A number of product samples from Subtask 4.4 testing were sent to both Combustion Engineering and Penn State for combustion testing. The evaluation of toxic trace element analyses of column flotation products also continued. The detailed design of the 2 t/hr PDU was essentially completed with the approval of various process flow, plant layout, electrical, and vendor equipment drawings. The final version of the Subtask 6.5 -- Selective Agglomeration Bench-Scale Design and Test Plan Report was issued during this reporting quarter. Design and construction of this 25 lb/hr selective agglomeration test unit was completed and preliminary testing started. Construction of the 2 t/hr PDU began following the selection of TIC. The Industrial Company as the construction subcontractor.

  6. Low-cost-silicon-process development. Phase IV: process improvement. Second quarterly technical progress report

    SciTech Connect

    Giraudi, R. V.; Newman, C. G.

    1981-04-01

    A number of promising techniques for improving the overall yield and economics of the tribromosilane based process to produce solar cell grade silicon is investigated. The current work is aimed at the identification of an optimum process and the characterization of that process through mini-plant operation and analysis. The three project tasks include process improvement studies, kinetic studies, and process economic studies. During this second quarter reporting period process improvement studies continued in the mini-plant, focusing on the correlation of current mini-plant yield results with prior laboratory scale work. Silicon bromination in the synthesis unit and tribromosilane purification in the distillation unit proceeded efficiently and without complication during this reporting period. Tribromosilane yields in the synthesis unit were low due to unobtainable higher reaction temperatures. Initial polycrystalline silicon production studies have indicated consistent yields of 85%. The laboratory scale static bulb reactor system was calibrated by observing the decomposition of t-butyl chloride. These results compared very well to results obtained by previous investigators for the same decomposition. Upon the conclusion of the calibration tests, the tribromosilane decomposition rate study was initiated. Two decompositions were completed and it was concluded that the reaction order can not be determined at this time. A free space reactor apparatus was assembled and tribromosilane decompositions, as a function of dilution in argon, was studied.

  7. National Institute for Petroleum and Energy Research quarterly technical report, January 1--March 31, 1993

    SciTech Connect

    Not Available

    1993-06-01

    Accomplishments for the past quarter are briefly described for the following tasks: chemical flooding -- supporting research; gas displacement -- supporting research; thermal recovery -- supporting research; geoscience technology; resource assessment technology; and microbial technology. Chemical flooding covers: surfactant flooding methods; development of improved alkaline flooding methods; mobility control and sweep improvement in chemical flooding; and surfactant-enhanced alkaline flooding field project. Gas displacement covers: gas flooding performance prediction improvement; and mobility control, profile modification and sweep improvement in gas flooding. Thermal recovery includes: thermal processes for light oil recovery; thermal processes for heavy oil recovery; and feasibility study of heavy oil recovery in the mid-continent region -- Oklahoma, Kansas, and Missouri; simulation analysis of steam-foam projects; and field application of foams for oil production symposium. Geoscience technology covers: three-phase relative permeability; and imaging techniques applied to the study of fluids in porous media. Resource assessment technology includes: reservoir assessment and characterization; TORIS research support; upgrade the BPO crude oil analysis data base; and compilation and analysis of outcrop data from the Muddy and Almond Formations. Microbial technology covers development of improved microbial flooding methods; and microbial-enhanced waterflooding field project.

  8. GBRN/DOE Project: Dynamic enhanced recovery technologies. Quarterly technical report, January 1994--March 1994

    SciTech Connect

    Anderson, R.N.

    1994-04-15

    Global Basins Research Network will perform a field demonstration of their ``Dynamic Enhanced Recovery Technology`` to test the concept that the growth faults in EI-330 field are conduits through which producing reservoirs are charged and that enhanced production can be developed by producing directly from the fault zone. The site, operated by Penzoil, is located in 250 feet of water the productive depth intervals include 4000 to 9000 feet. Previous work, which incorporated pressure, temperature, fluid flow, heat flow, seismic, production, and well log data, indicated active fluid flow along fault zones. The field demonstration will be accomplished by drilling and production test of growth fault systems associated with the EI-330 field. The project utilizes advanced 3-D seismic analysis, geochemical studies, structural and stratigraphic reservoir characterization, reservoir simulation, and compact visualization systems. The quarterly progress reports contains accomplishments to date for the following tasks: Management start-up; database management; field and demonstration equipment; reservoir characterization, modeling; geochemistry; and data integration.

  9. Studies of clusters. Fourth quarterly technical progress report, April 1, 1993--June 30, 1993

    SciTech Connect

    Farley, J.W.

    1993-08-01

    Positive cluster ions were produced, and the mass spectrum was measured using a radiofrequency quadrupole mass spectrometer. Mass spectra are attached, showing the cluster ions produced using pure ammonia. They have the general formula (NH {sub 3}){sub n}H {sub m}{sup +}, where n and m are integers. Peaks with different numbers of hydrogens can barely be resolved. This shows that the ion source can produce cluster ions. The development of sensitive laser techniques is necessary for probing the clusters. During this quarter, we succeeded in using a weak diode laser was used to probe a bean of negative molecular ion. The work on the visible absorption spectrum of D{sub 2}O{sup +} continues, and is now in the analysis phase. The work on the infrared vibrational -- rotational spectrum of H{sup 15}NO{sup {minus}} continues. In the second ion beam machine, a complete reworking of the voltages has been completed, and is being reassembled.

  10. Advanced separation technology for flue gas cleanup. Quarterly technical report No. 7, [October--December 1993

    SciTech Connect

    Bhown, A.S.; Alvarado, D.; Stearns, P.; Ventura, S.; Sirkar, K.K.; Majumdar, S.; Bhaumick, D.

    1994-02-01

    During the third quarter of 1993, we continued work on Tasks 2, 3, 4, 5, and 6. In Task 2, we tested the NO{sub x} sorption capacity of Fe(II)-EDTA and five new SRI-synthesized compounds. We also made a comparison of all the tests so far and have selected two compounds as the leading candidates. In Task 3, we electrochemically converted FE(III) phthalocyanine to its Fe(II) analog and synthesized several metal phthalocyanine compounds. In Task 4, we evaluated 200-fiber HFC modules for SO{sub 2} removal with water and solutions of Na{sub 2}SO{sub 3}. We also connected this HFC unit to the liquor regenerating HFC unit described in Task 6. We continue to observe 95--100% SO{sub 2} removal. In Task 5, we calculated the overall mass transfer coefficients of earlier Fe(II)-EDTA runs for scrubbing NO{sub x}. We also obtained a new module from Hoechst-Celanese and began its characterization. In Task 6, we demonstrated that the spent liquor from Task 4 can be regenerated using a second HFC. The spent liquor was regenerating using DMA with initial recovery of SO{sub 2} up to 52%.

  11. Stable carbon isotope analysis of coprocessing materials: Quarterly technical progress report, October 1--December 31, 1988

    SciTech Connect

    Burke, F.P.; Winschel, R.A.; Lancet, M.S.

    1989-03-01

    Consol R and D will develop and demonstrate stable carbon isotope analysis as a method to quantitatively distinguish coal-derived and petroleum-derived carbon in products from coal/petroleum coprocessing. The approach taken will be to develop the method, then demonstrate its application on authentic continuous-unit products. The significance of selective isotopic fractionation will be determined and, if necessary, corrections will be applied to account for it. Precision, accuracy and range of applicability will be defined. The value of accessory analytical techniques will also be assessed. Results achieved this quarter include: feed and product fractions from hydroprocessing bench unit runs at the Kentucky Center for Applied Energy Research (CAER) were received, and samples from a Kentucky tar sand bitumen-only run were analyzed for carbon isotope ratios. Repeat carbon isotope analyses of seven samples from HRI Coprocessing Run 227-53 resulted in improved carbon balances for one run period. Athabasca ASB, Cold Lake ASB and Maya ASB were fractionated by distillation and solubility fractionation to determine the homogeneity of each petroleum with respect to carbon isotope ratios. 9 figs., 2 tabs.

  12. Mild pyrolysis of selectively oxidized coals. [Quarterly] technical report, December 1, 1991--February 29, 1992

    SciTech Connect

    Hippo, E.J.; Palmer, S.R.

    1992-08-01

    The primary objective of this study is to investigate the removal organic sulfur from selectively oxidized Illinois coals using mild thermal/chemical processes. Work completed this quarter primarily concerned establishing the level of selective oxidation required for successful desulfurization in subsequent treatments. Many desulfurization reactions were performed on pretreated as well as unoxidized coal. The results obtained support the following new conclusions: (1) The extent of selective oxidation in the pretreatment step does not effect the level of desulfurization obtained by pyrolysis alone. However this factor was important in the desulfurization obtained with supercritical methanol (SCM)/base. (2) Up to 84% of the sulfur in the IBC 106 coal and 86% of the sulfur in the IBC 106 coal has been removed by combining selective oxidation and SCM/base reactions. (3) Most desulfurizations at 250{degree}C did not produce significant levels of desulfurization. However as the temperature was increased levels of desulfurization increased considerably. (4) Although aqueous base was successful in removing sulfur from both pretreated and untreated samples, the most pronounced desulfurizations were obtained for the untreated samples. This is explained primarily by the dissolution of pyrite in the untreated samples. (5) The best desulfurizations involved SCM and base. Possible synergistic interactions between the methanol and the base are suspected. (6) Overall, selective oxidation pretreatment always led to a lower sulfur product. The severity of desulfurization is reduced by selective oxidation pretreatment.

  13. Biodesulfurization of mild gasification liquid products. [Quarterly] technical report, March 1, 1993--May 31, 1993

    SciTech Connect

    Kilbane, J.J. II

    1993-09-01

    The mild gasification of coal is a promising new technology that can convert coal to multiple products: gas, solid, and liquids. However, the sulfur content and aromaticity of mild gasification liquids limits their usefulness. Biodesulfurization can potentially decrease both sulfur content and aromaticity. The objective of this project is to investigate the feasibility of using biodesulfurization to upgrade the quality of mild gasification liquids. Previously it was shown that the middle distillate (360--440{degrees}F) fraction of liquids derived from the mild gasification of coal could be biodesulfurized. During this quarter it was demonstrated that unfractionated liquids can be biodesulfurized. Moreover, it was demonstrated that lysed cell preparations and freeze-dried cells can be used to biodesulfurize mild coal gasification liquids. The importance of the finding that freeze-dried biocatalysts can be used to biodesulfurize mild coal gasification liquids is that freezedried cells can be produced at one location, stored indefinitely, and then shipped to another location for coal biodesulfurization. Moreover, freeze-dried biocatalysts can be added directly to mild coal gasification liquids with only minimal additions of water so that reactor volumes can be minimized.

  14. National Institute for Petroleum and Energy Research quarterly technical report, January 1--March 31, 1990

    SciTech Connect

    Not Available

    1990-04-19

    Fuels research is discussed in the following areas: (1) Department of Analytical Methodology for Analysis of Heavy Crudes; and (2) thermochemistry and thermophysical properties of organic nitrogen-, and diheteroatom-containing compounds. This quarter for project (1), inspection analysis of five 1000{degree}F+ resids employed in the carbonization study were completed. Also, subfractionation of Cerro Negro neutrals fraction was carried out. Progress on Project 2 consisted of: a thermodynamic analysis for the key hydrogen-consuming steps in the hydrodenitrogenation (HDN) reaction network for quinoline; heat-capacity and enthalpy measurements were completed for the diheteroatom-containing compound, thianthrene. Following completion measurements on thianthrene, the heat capacity of the empty calorimeter was determined, and in another calorimeter, heat-capacity and enthalpy studies were started on benzoxazole. Methods to convert benzoxazole to its low-temperature form were developed, and measurements were completed between 80 and 240 K; and high-temperature heat capacities were determined for phenoxathin and carbazole. 1 ref., 14 figs., 11 tabs.

  15. Development of analytical procedures for coprocessing. Quarterly technical progress report, July 1, 1990--September 30, 1990

    SciTech Connect

    Anderson, R.P.

    1991-05-01

    This is the eighth quarterly report under DOE Contract No. DE-AC22-88PC88810, Development of Analytical Procedures for Coprocessing. The overall objective of the contract is to improve our understanding of the fundamental chemistry of coprocessing. This includes the evaluation of methods to distinguish between compound classes originating from coal versus those originating from petroleum resid. Techniques being evaluated include carbon isotope ratios and the variations in compound classes in response to changes in the coal/resid ratio in the feed. A final objective of this project is to provide detailed knowledge on the composition of coprocessing products. This report reviews the use of isotope ratios to determine the source of compound classes (e.g., acids, bases, neutrals, aromatics, saturates, etc.). Selective isotope fractionation is a complicating factor in the use of carbon isotope ratios to determine the source of coprocessing products. Other researchers have shown that through the use of appropriate correction factors to correct for this isotope selectivity, isotope ratios can be used to quantitatively determine the source of coprocessing fractions obtained by distillation. It is concluded in this report that although isotope ratios may provide qualitative information on the source of coprocessing compound classes, that the high degree of isotope selectivity in compound classes originating from a single feed prohibits the quantitative determination of the origin of such compound classes.

  16. [Dynamic enhanced recovery techniques]. Quarterly technical report, April 1994--June 1994

    SciTech Connect

    Anderson, R.N.

    1994-07-15

    Global Basins Research Network will perform a field demonstration of their ``Dynamic Enhanced Recovery Technology`` to test the concept that the growth of faults in Eugene Island Block 330 (EI-330 field) are conduits through which producing reservoirs are charged and that enhanced production can be developed by producing directly from the fault zone. The site, operated by Penzoil, is located in 250 feet of water and the productive depth intervals include 4000 to 9000 feet. The field demonstration will be accomplished by drilling and production testing of growth fault systems associated with the EI-330 field. The project utilizes advanced 3-D seismic analysis, geochemical studies, structural and stratigraphic reservoir characterization, reservoir simulation, and compact visualization systems. In this quarterly report, progress reports are presented for the following tasks: Task one--management start-up; Task two--database management; Task three--field demonstration experiment; Task four--reservoir characterization; Task five--modeling; Task six--geochemistry; and Task seven--data integration.

  17. Molecular biological enhancement of coal biodesulfurization. [Quarterly] technical report, December 1, 1993--February 28, 1994

    SciTech Connect

    Kilbane, J.J. II

    1994-06-01

    IGT has developed a microbial culture of Rhodococcus rhodochrous, IGTS8, that is capable of specifically cleaving carbon-sulfur bonds in a range of organosulfur model compounds and is capable of removing organic sulfur from coal and petroleum. Although IGTS8 possesses the ability to specifically remove organic sulfur from coal, a major research need is to develop improved strain`s of microorganisms that possess higher levels of desulfurization activity and therefore wall permit more favorable biodesulfurization process conditions: faster rates, mare complete removal, and smaller reactor size. Strain improvement is the single most important aspect to the development of a practical coal biodesulfurization process and accordingly is the focus of research in this project. Several possible strong promoters have been isolated and are in the process of being analyzed. When these promoters have been characterized for inducibility, strength, transcriptional start sites and other physical properties, they will be placed in front of the desulfurization genes and expression will be monitored. Improved promoter probe vectors have been constructed, allowing a conclusive screen of all putative Rhodococcus promoters. With the improved methodologies in the handling of Rhodococcus RNA, we have begun to gauge promoter expression using Northern blots. During this quarter we have constructed and successfully used a promoter probe vector using the {beta}-galactosidane gene from E. coli. A chromosomal promoter library was constructed upstream from the {beta}-galactosidase gene. Over 200 colonies were isolated that yielded {beta}-galactosidase activity.

  18. ERIP invention 637. Technical progress report 2nd quarter, April 1997--June 1997

    SciTech Connect

    Thacker, G.W.

    1997-07-22

    This technical report describes progress in the development of the Pegasus plow, a stalk and root embedding apparatus. Prototype testing is reported, and includes the addition of precision tillage. Disease data, organic matter, and nitrogen levels results are very briefly described. Progress in marketing is also reported. Current marketing issues include test use by cotton and wheat growers, establishment of dealer relationships, incorporation of design modifications, expansion of marketing activities, and expansion of loan and lease program.

  19. In-plant testing of a novel coal cleaning circuit using advanced technologies, Quarterly report, March 1 - May 31, 1996

    SciTech Connect

    Honaker, R.Q.; Reed, S.; Mohanty, M.K.

    1996-12-31

    Research conducted at Southern Illinois University at Carbondale over the past two years has identified highly efficient methods for treating fine coal (i.e., -28 mesh). In this study, a circuit comprised of the three advanced fine coal cleaning technologies is being tested in an operating preparation plant to evaluate circuit performance and to compare the performance with the current technologies used to treat -16 mesh fine coal. The circuit integrated a Floatex hydrosizer, a Falcon concentrator and a Jameson froth flotation cell. The Floatex hydrosizer is being used as a primary cleaner for the nominally -16 mesh Illinois No. 5 fine coal circuit feed. The overflow of the Floatex is screened at 48 mesh using a Sizetec vibratory screen to produce a clean coal product from the screen overflow. The screen overflow is further treated by the Falcon and Jameson Cell. During this reporting period, tests were initiated on the fine coal circuit installed at the Kerr-McGee Galatia preparation plant. The circuit was found to reduce both the ash content and the pyritic sulfur content. Additional in-plant circuitry tests are ongoing.

  20. Advanced emissions control development program. Quarterly technical progress report {number_sign}4, July 1--September 30, 1995

    SciTech Connect

    Farthing, G.A.

    1995-12-31

    Babcock and Wilcox (B and W) is conducting a five-year project aimed at the development of practical, cost-effective strategies for reducing the emissions of hazardous air pollutants (commonly called air toxics) from coal-fired electric utility plants. The need for air toxic emissions controls will likely arise as the US Environmental Protection Agency proceeds with implementation of Title III of the Clean Air Act Amendments of 1990. Data generated during the program will provide utilities with the technical and economic information necessary to reliably evaluate various air toxics emissions compliance options such as fuel switching, coal cleaning, and flue gas treatment. The development work is being carried out using B and W`s new Clean Environment Development Facility (CEDF) wherein air toxics emissions control strategies can be developed under controlled conditions, and with proven predictability to commercial systems. Tests conducted in the CEDF will provide high quality, repeatable, comparable data over a wide range of coal properties, operating conditions, and emissions control systems. The specific objectives of the project are to: (1) measure and understand the production and partitioning of air toxics species for a variety of steam coals, (2) optimize the air toxics removal performance of conventional flue gas cleanup systems (ESPs, baghouses, scrubbers), (3) develop advanced air toxics emissions control concepts, (4) develop and validate air toxics emissions measurement and monitoring techniques, and (5) establish a comprehensive, self-consistent air toxics data library. Development work is currently concentrated on the capture of mercury, fine particulate, and a variety of inorganic species such as the acid gases (hydrogen chloride, hydrogen fluoride, etc.).

  1. I-NERI QUARTERLY TECHNICAL PROGRESS REPORT - JANUARY 1 - MARCH 31, 2005

    SciTech Connect

    Chang Oh

    2005-03-01

    The objective of this Korean/United States/laboratory/university collaboration is to develop new advanced computational methods for safety analysis codes for very-high-temperature gas-cooled reactors (VHTGRs) and numerical and experimental validation of these computer codes. The research will improve two well-respected light water reactor transient response codes (RELAP5/ATHENA and MELCOR) in the modeling of molecular diffusion and chemical equilibrium, and to validate these codes against the VHTGR accident data, i.e., air ingress and others from the literature. The VHTGR is intrinsically safe, has a proliferation-resistant fuel cycle, and many advantages relative to light water reactors (LWRs). This study consists of five tasks for FY-03: (1) development of computational methods for the VHTGR, (2) theoretical modification of aforementioned computer codes for molecular diffusion (RELAP5/ATHENA) and modeling CO and CO{sub 2} equilibrium (MELCOR), (3) development of a state-of-the-art methodology for VHTGR neutronic analysis and calculation of accurate power distributions and decay heat deposition rates, (4) reactor cavity cooling system experiment, and (5) graphite oxidation experiment. First quarter of Year 3: (A) Prof. NO and Kim continued Task 1. We first performed the chemical reaction test for the VELUNA pebble oxidation experiment and then the analysis of the air ingress accident for PBMR 268MWt. In the GAMMA analysis, significant rise in pebble temperature was observed at the bottom of the core due to graphite oxidation. Since the air ingress process depends on the vault conditions, further analysis coupled with more detailed vault or containment modeling would be necessary as a future study. (B) Prof. Park continued Task 2. The experiments for SNU-RCCS were continued to provide the experimental data for the validation of the thermal hydraulic code being developed at KAIST and to evaluate the performance of the system using the experiments and system analysis

  2. MHD Integrated Topping Cycle Project. Fifteenth quarterly technical progress report, February 1991--April 1991

    SciTech Connect

    Not Available

    1992-02-01

    A summary of the work is excerpted here. Final design of an MHD channel for the ITC program POC test has been completed. The channel was designed to be capable of 1.5 MW {sub e} power output and a lifetime of 2000 hours. Emphasis was placed upon durability and reliability. Hence, specific measures were taken to design against channel damage due to electric faults. The life-limiting issues associated with electrochemical corrosion and erosion of gas-side surfaces were addressed by the use of various materials with proven wear characteristics in a coal-fired MHD channel environment. Pitting of prototypical sidewall coupons was observed in the CDIF workhorse testing. The most likely cause of the observed pitting, water leaks resulting from cooling water tube braze failures, has been remedied. New brazing procedures and isolation of the sidebar gas-side material from water contact will prevent sidebar pitting in the prototypical channel. Water-side corrosion tests reported in this quarterly report include the latest results of tungsten-copper elements at controlled pH, heat flux and voltage levels. In the combustion subsystem, efforts continued to focus on understanding and improving the current levels of slag recovery and seed utilization achieved by the combustor. Analytical support was also provided in the areas of slag rejection system operation, precombustor operation, and oil burner design modification. Channel data analysis activities continued in support of prototypical coupon testing at the CDIF. Analyses are presented on channel wall slagging behavior and sidewall voltage distributions.

  3. Direct catalytic decomposition of nitric oxide. Quarterly technical progress report No. 10, January--March 1994

    SciTech Connect

    Flytzani-Stephanopoulos, M.; Sarofim, A.F.; Zhang, Y.; Sun, T.

    1994-06-01

    This project investigates a suitable catalyst system for the direct nitric oxide decomposition in post-combustion gas streams. This process does not use a reductant, such as the ammonia used in the Selective Catalytic Reduction (SCR) of NO{sub x} to nitrogen. Therefore, it is a greatly simplified process basically involving passing the flue gas through a catalytic converter. Catalysts are prepared by incorporating metal cations into zeolite supports according to ion exchange procedures widely used in preparation of metal/zeolite catalysts. Particular emphasis is given in this work on promoted Cu-exchanged zeolites, especially the catalyst systems Mg/Cu-ZSM-5 and Ce/Cu-ZSM-5, which are promising for NO conversion to nitrogen at typical flue gas O{sub 2} and NO levels and over the temperature range of 673--873{degrees}C. The effect of zeolite modification, copper exchange level and catalyst preparation conditions on the catalytic activity are studied in O{sub 2}-free, O{sub 2}-rich gases, as well as wet (2--20% H{sub 2}O) gas streams in a packed-bed microreactor. Characterization of catalysts is performed by XRD, STEM, TEM and ESR. During this quarter it was found that severe steaming (20% H{sub 2}O) of Na-ZSM-5 at temperatures above 600{degrees}C caused partial vitreous glass formation and dealumination. Unpromoted Cu-ZSM-5 catalysts suffer drastic loss of NO decomposition activity in wet gas streams at 500{degrees}C. Activity is partially recovered in dry gas. Copper migration out of the zeolite channels leading to CuO formation has been identified by STEM/EDX. In Ce/Cu-ZSM-5 catalysts the wet gas activity i`s greatly improved. CuO particle formation is less extensive and the dry gas activity is largely recovered upon removal of the water vapor.

  4. Quarterly technical progress report for the period ending June 30, 1984

    SciTech Connect

    Not Available

    1984-10-01

    The Magnetohydrodynamics Program (Component Development and Integration Facility) in Butte, Montana, continued its site preparation for the TRW first-stage combustor installation. In the area of flue gas cleanup, our in-house research program is continuing its investigation into the causes of sorbent attrition in PETC's fluidized-bed copper oxide process for simultaneous SO/sub 2//NO/sub x/ removal. Interwoven with these tests is a series of spray dryer/electrostatic precipitator tests that are being conducted with the cooperation of Wheelabrator-Frye, Inc. This test series was completed this quarter, and the data show that when using a Kentucky coal, Wheelabrator-Frye's electrostatic precipitator provides excellent particulate control efficiency while using a spray dryer for sulfur dioxide removal. A unique project at Carnegie-Mellon University is looking at the concept of integrated environmental control for coal-fired power plants making use of precombustion, combustion, and postcombustion control, including systems for the simultaneous removal of more than one pollutant. The objective of this research is to develop a computer model and assessment for integrated environmental control systems that utilize conventional or advanced systems. The Liquid Phase Methanol Project Development Unit in LaPorte, Texas, was restarted after a successful shakedown run was completed. PETC has recently begun an in-house research project aimed at exploring the basic chemistry of liquefying coal in the presence of water under supercritical conditions. In the Alternative Fuels Technology Program, the Gulf Research and Development Company has completed the preliminary testing phase of its erosion test loop. Their results indicate that when pumping a coal-water slurry fuel through a flow loop, the erosion rate increases as velocity increases, suggesting a well-defined relationship between these two parameters.

  5. Fundamental mechanisms in flue gas conditioning. Quarterly technical progress report, April 1995--June 1995

    SciTech Connect

    Snyder, T.R.; Bush, P.V.

    1995-07-11

    This project is divided into four tasks. We developed our Management Plan in Task 1. Task 2, Evaluation of Mechanisms in FGD Sorbent and Ash Interactions, focused on characteristics of binary mixtures of these distinct powders. Task 3, Evaluation of Mechanisms in Conditioning Agents and Ash, was designed to examine effects of various conditioning agents on fine ash particles to determine mechanisms by which these agents alter physical properties of ash. We began Tasks 2 and 3 with an extensive literature search and assembly of existing theories. We completed this phase of the project with publication of two special Topical Reports. In our literature reviews reported in Topical Reports 1 and 2, we emphasized the roles adsorbed water can have in controlling bulk properties of powders. During the next phase of the project we analyzed a variety of fly ashes and fine powders in the laboratory. The experiments we performed were primarily designed to define the extent to which water affects key properties of ashes, powders, and mixtures of sorbents and ashes. We have recently completed a series of pilot-scale tests designed to determine the effects that adsorbed water has on fabric filtration and electrostatic precipitation of entrained fly ash particles in actual flue gas environments. Under Task 4 we will issue our Final Report that will summarize the results of our laboratory and pilot-scale work and will also include a model of flue gas conditioning. Our efforts during this reporting quarter have been directed toward production of the Draft Final Report and the Flue Gas Conditioning Model. In addition to these efforts, we have prepared a paper for presentation at the Eleventh Annual Coal Preparation, Utilization, and Environmental Control Contractor`s Conference to be held in Pittsburgh in July, 1995.

  6. Methyl chloride via oxyhydrochlorination of methane. Quarterly technical progress report No. 7, April--June 1993

    SciTech Connect

    Not Available

    1994-01-01

    The purpose of this contract is to develop a process for converting light alkane gases to methyl chloride via oxyhydrochlorination using highly selective, stable catalysts in fixed-bed reactors designed to remove the large amount of heat generated, so as to control the reaction temperature. Further, the objective is to obtain the engineering data base necessary for developing a commercially feasible process and to evaluate the economics of the process. Several key technology areas were evaluated this quarter. The catalyst definition effort focused on the determination of the role of the Li and La promoters that have been found to be useful in enhancing Cu based oxyhydrochlorination of methane catalysts. Initial experiments show that the La acts to provide a much more active catalyst than the Cu only case. The role of the Li is ambiguous at this point. The Li enhances the stability of the La promoted catalyst, but gives only marginal improvement by itself This work will be continued, with additional emphasis on the analysis of the catalysts to determine the structural role that the promoters may play. The separation unit operation definition made significant progress by demonstrating in a laboratory system that a process solvent may be used to remove the product CH{sub 3}Cl from the reactor effluent stream. To date the data has been qualitative, but clear. Work will continue to gather the information possible in the laboratory to help with PDU design. An extensive amount of testing was performed on the chosen process solvent, Multitherm. A comprehensive review of all the thermal testing and associated FTIR, UV/VIS, and physical property testing is included in this report. This work shows that Multitherm should give the desired stability and solubility that are necessary to make the separation unit operation successful.

  7. Solvent refined coal (SRC) process. Quarterly technical progress report, January 1980-March 1980. [In process streams

    SciTech Connect

    Not Available

    1981-01-01

    This report summarizes the progress of the Solvent Refined Coal (SRC) project at the SRC Pilot Plant in Fort Lewis, Wahsington, and the Process Development Unit (P-99) in Harmarville, Pennsylvania. After the remaining runs of the slurry preheater survey test program were completed January 14, the Fort Lewis Pilot Plant was shut down to inspect Slurry Preheater B and to insulate the coil for future testing at higher rates of heat flux. Radiographic inspection of the coil showed that the welds at the pressure taps and the immersion thermowells did not meet design specifications. Slurry Preheater A was used during the first 12 days of February while weld repairs and modifications to Slurry Preheater B were completed. Two attempts to complete a material balance run on Powhatan No. 6 Mine coal were attempted but neither was successful. Slurry Preheater B was in service the remainder of the quarter. The start of a series of runs at higher heat flux was delayed because of plugging in both the slurry and the hydrogen flow metering systems. Three baseline runs and three slurry runs of the high heat flux program were completed before the plant was shut down March 12 for repair of the Inert Gas Unit. Attempts to complete a fourth slurry run at high heat flux were unsuccessful because of problems with the coal feed handling and the vortex mix systems. Process Development Unit (P-99) completed three of the four runs designed to study the effect of dissolver L/D ratio. The fourth was under way at the end of the period. SRC yield correlations have been developed that include coal properties as independent variables. A preliminary ranking of coals according to their reactivity in PDU P-99 has been made. Techniques for studying coking phenomenona are now in place.

  8. (Pittsburgh Energy Technology Center): Quarterly technical progress report for the period ending December 31, 1985

    SciTech Connect

    Not Available

    1986-10-01

    Microbial desulfurization is the use of ''bugs'' to remove sulfur from coal. Four projects illustrate the variety of ways in which microbes can be used to desulfurize coal. In the liquefaction program area, a joint effort between PETC and Catalytic, Inc., was established for process-modeling studies of two-stage coal liquefaction experiments at Wilsonville. Researchers at PETC have developed a process model for Integrated Two-Stage Liquefaction and are currently focusing on characterization of an engineering (ASPEN Public) simulator. The goal of this work is to establish realistic process performance indices for different reactor configurations and coal feedstocks based on heat and material balance calculations. In another liquefaction research effort this quarter, Hydrocarbon Research, Inc., started the first bench run under its new contract for research on low-severity, two-stage liquefaction. The run is planned for 29 days and will test nine separate operating conditions. Research in the field of magnetohydrodynamics (MHD) continued at the Avco Everett Research Laboratory (AERL). A significant achievement fiscal year was the first-time operation of the Avco MK VIII channel with the total power controlled and/or consolidated using nonresistive circuitry. An electrostatic precipitator (ESP) was delivered, installed, and tested at the DOE's MHD Coal-Fired Flow Facility at the University of Tennessee Space Institute. Shakedown tests of PETC's Continuous Life-Cycle Copper Oxide Test Facility are complete. This PETC facility will be used to conduct the first integrated process tests of the Fluidized-Bed Copper Oxide Process unit for the control of SO/sub 2/ and NO/sub x/. PETC has recently initiated a project to study the fundamental properties of coal surfaces by measuring the heat of immersion of coal and its associated mineral matter using a Setaram C-80 heat flow calorimeter.

  9. Development of analytical procedures for coprocessing. Quarterly technical progress report, January 1, 1991--March 31, 1991

    SciTech Connect

    Anderson, R.P.

    1991-06-01

    This is the tenth quarterly report under DOE Contract No. DE-AC22-88PC88810, Development of Analytical Procedures for Coprocessing. The overall objective of the contract is to improve understanding of the fundamental chemistry of coprocessing. A primary objective is to evaluate methods to distinguish between compound classes originating from coal versus those originating from petroleum resid while a corollary objective is to provide detailed knowledge on the composition of coprocessing products. This report summarizes work conducted in support of the latter objective in which process development unit samples produced by HRI, Inc. are being subjected to detailed analysis. Coprocessing resid samples selected for detailed analysis were made under constant conditions except for variations in coal concentration or in the coal (New Mexico subbituminous or Texas lignite). The soluble material was separated into strong and weak acids, strong and weak bases, and neutrals. The predominant fraction from the ABN separations was the neutral fraction (67-81%). All of the polar fractions increase with increasing coal concentration. The concentration of saturates in the neutrals is high in a run with 33% subbituminous coal but drops substantially with either increasing coal concentration or the substitution of lignite for subbituminous coal. High temperature gas chromatography showed that both the neutral aromatics fractions and saturates fractions from all of the runs are extremely similar regardless of the coal concentration or coal type. The neutral aromatics fractions were further separated by ring number separation. Chromatograms were again very similar regardless of the initial coal concentration or coal type with most material eluting in the 3-ring to 6-ring region.

  10. Advanced direct liquefaction concepts for PETC generic units. Quarterly technical progress report, October 1993--December 1993

    SciTech Connect

    Not Available

    1994-02-01

    Several promising leads that have developed during the course of this program are being evaluated in this phase of the study. These have been selected from those that can be economically evaluated within the time constraints of the program schedule. A detailed plan for evaluating these approaches was formulated. The individual steps that will be evaluated are: (1) Dewaxing of the distillate recycle solvent stream treating either 25% or 100% of the stream. (2) Hydrotreating the dewaxed distillate streams in a downflow fixed bed reactor. (3) Agglomerating the coal using both the 25% and 100% dewaxed-hydrotreated distillate streams. (4) Liquefying the as-received coal and the agglomerated coals using two different Mo-promoted hematite particulate catalysts. (5) Liquefying two different Mo-Fe impregnated coals. (6) Liquefying the two off-agglomerated, Mo-Fe impregnated coals. The effect of the presence of molybdenum in the 1050{degrees}F{sup +} will be determined by making comparisons in both Mo-containing and Mo-free full range V-131B process solvent. The solvents that will be used in this study are the full-range reconstituted Mo-containing V-131B from Run 262E and a Mo-free V-131B made up of 1050{degrees}F{sup +} bottoms from Run 258K V-131B and V-1074 distillate from Run 262E. The series of experiments are described and a chart has been prepared summarizing this series of runs. The plan requires significant exchange of samples between the different participants in the program with the schedule timed for providing the data for economic evaluation within the next quarterly reporting period.

  11. Electrochemical photovoltaic cells. Project 65021 quarterly technical progress report, October 15, 1979-January 15, 1980

    SciTech Connect

    Ang, P.G.P.; Remick, R.J.; Sammells, A.F.

    1980-03-01

    During the third quarter of this program, liquid junction devices based upon the semiconductors MoSe/sub 2/, MoS/sub 2/, GaAs, and CdSe have been evaluated. Lifetime testing of MoSe/sub 2/ and MoS/sub 2/ materials in acidic halogen electrolytes at constant current densities of 5 mA/cm/sup 2/ have shown excellent stability to date. For MoSe/sub 2/ single crystals in the electrolyte 1M HBr + 1M Br/sub 2/, short-circuit currents of 63 mA/cm/sup 2/ were achieved with a power conversion efficiency of 6.7% for 200 mW/cm/sup 2/ xenon light illumination. Transient potentiostatic measurements made on MoSe/sub 2/ in this electrolyte indicated little diffusion control, with exchange currents being of the order of 1 to 10 mA/cm/sup 2/. Good photoresponse of MoS/sub 2/ has been observed in 1M HBr + 1M Br/sub 2/. The performance of the natural crystal is comparable to the performance of a single-crystal MoS/sub 2/ in this electrolyte. CdSe thermally evaporated onto porous titanium gave efficiencies of about 4% with 100 mW/cm/sup 2/ xenon illumination. Experimental work was initiated on the dye sensitization of Fe/sub 2/O/sub 3/ and TiO/sub 2/ materials. Of the twelve dyes evaluated, little enhancement of the photoresponse of these materials was noted. Solid-state photoelectrochemical cells have been fabricated, based upon LiI. Cells of the configuration - cond. glass CdSe/LiI + PbI/sub 2//LiI/LiI + C + PbI/sub 2//cond. glass - were fabricated. Photoresponses up to 150 mV were observed.

  12. Micro-agglomerate flotation for deep cleaning of coal. Quarterly progress report, October 1--December 30, 1995

    SciTech Connect

    Chandler, S.; Hogg, R.

    1996-04-01

    Goals are to demonstrate the technical and economic feasibility of a micro-agglomerate flotation process (combination of oil-agglomeration and froth flotation) and to establish the essential criteria for reagent selection and system design and operation. The research program was organized into the following tasks: interfacial studies, emulsification, agglomerate growth and structure, and agglomerate flotation. Work on the first two tasks has been completed.

  13. Molecular biological enhancement of coal biodesulfurization. Ninth quarterly technical progress report

    SciTech Connect

    Litchfield, J.H.; Zupancic, T.J.; Baker, B.; Palmer, D.T.; Fry, I.J.; Tranuero, C.G.; Wyza, R.E.; Schweitzer, A.; Conkle, H.N.; Chakravanty, L.; Tuovinen, O.H.

    1991-09-13

    The objective of this project is to produce one or more microorganisms capable of removing the organic and inorganic sulfur in coal. The original specific technical objectives of the project were to: clone and characterize the genes encoding the enzymes of the ``4S`` pathway (sulfoxide/sulfone/sulfonate/sulfate) for release of organic sulfur from coal; return multiple copies of genes to the original host to enhance the biodesulfurization activity of that organism; transfer this pathway into a fast-growing chemolithotropic bacterium; conduct a batch-mode optimization/analysis of scale-up variables.

  14. Molecular biological enhancement of coal biodesulfurization. Third quarterly technical progress report

    SciTech Connect

    Litchfield, J.H.; Fry, I.; Wyza, R.E.; Palmer, D.T.; Zupancic, T.J.; Conkle, H.N.

    1990-03-15

    The objective of this project is to produce one or more microorganisms capable of removing the organic and inorganic sulfur in coal. The original specific technical objectives of the project were to: Clone and characterize the genes encoding the enzymes of the ``4S`` pathway (sulfoxide/sulfone/sulfonate/sulfate) for release of organic sulfur from coal; Return multiple copies of genes to the original host to enhance the biodesulfurization activity of that organism; Transfer this pathway into a fast-growing chemolithotrophic bacterium; Conduct a batch-mode optimization/analysis of scale-up variables.

  15. Molecular biological enhancement of coal biodesulfurization. Fourth quarterly technical progress report

    SciTech Connect

    Litchfield, J.H.; Fry, I.; Wyza, R.E.; Palmer, D.T.; Zupancic, T.J.; Conkle, H.N.

    1990-06-14

    The objective of this project is to produce one or more microorganisms capable of removing the organic and inorganic sulfur in coal. The original specific technical objectives of the project were to: clone and characterize the genes encoding the enzymes of the ``4S`` pathway (sulfoxide/sulfone/sulfonate/sulfate) for release of organic sulfur from coal; return multiple copies of genes to the original host to enhance the biodesulfurization activity of that organism; transfer this pathway into a fast-growing chemolithotropic bacterium; conduct a batch-mode optimization/analysis of scale-up variables.

  16. Micro-agglomerate flotation for deep cleaning of coal. Quarterly progress report, October 1, 1994--December 31, 1994

    SciTech Connect

    Chander, S.; Hogg, R.

    1995-01-01

    The development of practical technologies for the deep cleaning of coal has been seriously hampered by the problems of carrying out efficient coal/mineral separations at the very fine sizes (often finer than 10 mm) needed to achieve adequate liberation of the mineral matter from the coal matrix. It is generally recognized that surface-based separation processes such as froth flotation or selective agglomeration offer considerable potential for such applications but there remain many problems in obtaining the required selectivity with acceptable recovery of combustible matter. In froth flotation, selectivity is substantially reduced at fine sizes due, primarily, to overloading of the froth phase which leads to excessive carryover of water and entrained mineral matter. Oil agglomeration, on the other hand, can provide good selectivity at low levels of oil addition but the agglomerates tend to be too fragile for separation by the screening methods normally used. The addition of larger amounts of oil can yield large, strong agglomerates which are easily separated but the selectivity is reduced and reagent costs can become excessive. We are investigating the use of a hybrid process - micro-agglomerate flotation - which is a combination of oil-agglomeration and froth flotation. The basic concept is to use small quantities of oil to promote the formation of dense micro-agglomerates with minimal entrapment of water and mineral particles, and to use froth flotation to extract these micro-agglomerates from the water/dispersed-mineral phase. Since the floating units are agglomerates (about 30-50 mm in size) rather than individual coal particles (1-10 mm) the problems of froth overload and water/mineral carryover should be significantly alleviated. Micro-agglomerate flotation has considerable potential for the practical deep cleaning of coal on a commercial scale.

  17. Bioconversion of coal derived synthesis gas to liquid fuels. Quarterly technical progress report, 1 April--30 June 1994

    SciTech Connect

    Jain, M.K.; Worden, R.M.; Grethlein, A.

    1994-07-18

    The overall objective of the project is to develop an integrated two-stage fermentation process for conversion of coal-derived synthesis gas to a mixture of alcohols. This is achieved in two steps. In the first step, Butyribacterium methylotrophicum converts carbon monoxide (CO) to butyric and acetic acids. Subsequent fermentation of the acids by Clostridium acetobutylicum leads to the production of butanol and ethanol. The tasks for this quarter were: development/isolation of superior strains for fermentation of syngas; evaluation of bioreactor configuration for improved mass transfer of syngas; recovery of carbon and electrons from H{sub 2}-CO{sub 2}; initiation of pervaporation for recovery of solvents; and selection of solid support material for trickle-bed fermentation. Technical progress included the following. Butyrate production was enhanced during H{sub 2}/CO{sub 2} (50/50) batch fermentation. Isolation of CO-utilizing anaerobic strains is in progress. Pressure (15 psig) fermentation was evaluated as a means of increasing CO availability. Polyurethane foam packing material was selected for trickle bed solid support. Cell recycle fermentation on syngas operated for 3 months. Acetate was the primary product at pH 6.8. Trickle bed and gas lift fermentor designs were modified after initial water testing. Pervaporation system was constructed. No alcohol selectivity was shown with the existing membranes during initial start-up.

  18. Power systems development facility. Quarterly technical progress report, July 1, 1994--September 30, 1994

    SciTech Connect

    1995-07-01

    The objective of this project is to evaluate hot gas particle control technologies using coal-derived gas streams. This will entail the design, construction, installation, and use of a flexible test facility which can operate under realistic gasification and combustion conditions. The major particulate control device issues to be addressed include the integration of the particulate control devices into coal utilization systems, on-line cleaning techniques, chemical and thermal degradation of components, fatigue or structural failures, blinding, collection efficiency as a function of particle size, and scale-up of particulate control systems to commercial size. The conceptual design of the facility was extended to include a within scope, phased expansion of the existing Hot Gas Cleanup Test Facility Cooperative Agreement to also address systems integration issues of hot particulate removal in advanced coal-based power generation systems. This expansion included the consideration of the following modules at the test facility in addition to the original Transport Reactor gas source and Hot Gas Cleanup Units: (1) Carbonizer/Pressurized Circulating Fluidized Bed Gas Source. (2) Hot Gas Cleanup Units to mate to all gas streams. (3) Combustion Gas Turbine. (4) Fuel Cell and associated gas treatment. This expansion to the Hot Gas Cleanup Test Facility is herein referred to as the Power Systems Development Facility (PSDF).

  19. An investigation of the mechanism of IGA/SCC of alloy 600 in corrosion accelerating heated crevice environments. Quarterly Technical Progress Report No. 4 for the period May 1, 2000 through July 31, 2000

    SciTech Connect

    Dr. Jesse Lumsden

    2000-07-31

    OAK-B135 An investigation of the mechanism of IGA/SCC of alloy 600 in corrosion accelerating heated crevice environments. Quarterly Technical Progress Report No. 4 for the period May 1, 2000 through July 31, 2000

  20. Dewatering studies of fine clean coal. Annual technical report, September 1, 1990--August 31, 1991

    SciTech Connect

    Parekh, B.K.

    1991-12-31

    The main objective of the present research program is to study and understand dewatering characteristics of ultrafine clean coal obtained using the advanced column flotation technique from the Kerr-McGee`s Galatia preparation plant fine coal waste stream. It is also the objective of the research program to utilize the basic study results, i.e., surface chemical, particle shape particle size distribution, etc., in developing a cost-effective dewatering method. The ultimate objective is to develop process criteria to obtain a dewatered clean coal product containing less that 20 percent moisture, using the conventional vacuum dewatering equipment. (VC)

  1. Responsive copolymers for enhanced petroleum recovery. Quarterly technical progress report, June 23--September 21, 1994

    SciTech Connect

    McCormick, C.; Hester, R.

    1994-12-31

    Summaries are given on the technical progress on three tasks of this project. Monomer and polymer synthesis discusses the preparation of 1(7-aminoheptyloxymethyl)naphthalene and poly(maleic anhydride-alt-ethyl vinyl ether). Task 2, Characterization of molecular structure, discusses terpolymer solution preparation, UV analysis, fluorescence analysis, low angle laser light scattering, and viscometry. The paper discusses the effects of hydrophobic groups, the effect of pH, the effect of electrolyte addition, and photophysical studies. Task 3, Solution properties, describes the factorial experimental design for characterizing polymer solutions by light scattering, the light scattering test model, orthogonal factorial test design, linear regression in coded space, confidence level for coded space test mode coefficients, coefficients of the real space test model, and surface analysis of the model equations.

  2. Advanced direct liquefaction concepts for PETC generic units. Quarterly technical progress report, April 1994--June 1994

    SciTech Connect

    1994-09-01

    The technical approach of the contract has been expanded to provide additional economic evaluation of related process options. Additional data will be developed in the following areas to facilitate these evaluations. The effect of several modified pretreatments on liquefaction will be investigated. These include catalytic and thermal dewaxing of distillate solvents, the effect that adding light resid to distillate solvent has on hydrotreating and dewaxing, the liquefaction behavior of dense-media separated low-rank coals, and methods of selectively removing oxygen from low-rank coals. Additional chemical, physical, and performance information on improved first-stage catalysts will be developed. Upgrading of ash concentrate to recover catalysts and improve low-rank coals will be assessed. The conversion of residual fractions to distillate by hydropyrolysis will be evaluated. The economic impact of these processes will be determined.

  3. Advanced direct liquefaction concepts for PETC generic units. Quarterly technical progress report, April 1993--June 1993

    SciTech Connect

    Not Available

    1993-08-01

    Section 1 contains a report of the progress by the University of Kentucky Center for Applied Energy Research on the following tasks: laboratory support (liquefaction in dewaxed and hydrotreated dewaxed solvent); CO pretreatment (effect of process variables on CO pretreatment, CO-pretreated product characterization, and liquefaction results); and iron based dispersed catalysts (production, characterization and testing of sulfated hematites and reaction model development). Section 2 contains a progress report by CONSOL, Inc. on the following tasks: laboratory support; pretreatment work on dewaxing; pretreatment work on agglomeration; and economic evaluation. Progress by Sandia National Laboratories is reported in Section 3 on the following: laboratory support (TGA methods) and solvent pretreatment (coker tar hydrogenation and coal liquefaction results). Section 4 gives a preliminary technical assessment by LDP Associates on the following: baseline economic assessment; assessment of improved coal conversion; and fluid coking.

  4. Pipeline gas demonstration plant, Phase I. Quarterly technical progress report for September 1980-November 1980

    SciTech Connect

    Eby, R.J.

    1980-12-01

    Work was performed in the following tasks in Phase I of the Pipeline Gas Demonstration Plant Program: Site Evaluation and Selection; Demonstration Plant Environmental Analysis; Feedstock Plans, Licenses, Permits and Easements; Demonstration Plant Definitive Design; Construction Planning; Economic Reassessment; Technical Support; Long Lead Procurement List; and Project Management. The Preliminary Construction Schedule was delivered to the Government on October 3, 1980, constituting an early delivery of the construction schedule called for in the scope of work for Task VI. The major work activity continues to be the effort in Task VI, Demonstration Plant Definitive Design, with two 30% Design Review meetings being held with the Government. Work in Task VII, Construction Planning, was initiated. Work has progressed satisfactorily in the other tasks in support of the Demonstration Plant Program. A Cost Change Proposal was submitted because of an increase in the scope of work and an extension of the schedule for Phase I to 47 months.

  5. Realizing Clean Energy's Potential: Lessons Learned in the U.S. West (Technical Report)

    SciTech Connect

    Not Available

    2014-05-01

    NREL Analysis Insights connects the dots between NREL studies, pulling big picture insights from a larger body of work. In the premiere issue of our new periodical Analysis Insights, we explore lessons learned from experience in the U.S. West for realizing clean energy's potential.

  6. Advanced technology for ancillary coal cleaning operations. Technical progress report, September--December, 1987

    SciTech Connect

    Not Available

    1994-09-01

    The work under contract number DE-AC22-87PC97881 is devoted to experimental research and development to investigate the feasibility of novel ancillary coal-cleaning technologies that offer a potential for reduced capital and operating costs. The ancilliary operations that are specifically addressed in this work include pulse enhanced drying, fines reconstitution by extrusion, and hydraulic wave comminution.

  7. Advanced technology for ancillary coal cleaning operations. Technical progress report, January 1988--March 1988

    SciTech Connect

    Not Available

    1994-09-01

    The work under contract number DE-AC22-87PC97881 is devoted to experimental research and development to investigate the feasibility of novel ancillary coal-cleaning technologies that offer a potential for reduced capital and operating costs. The ancilliary operations that are specifically addressed in this work include pulse enhanced drying, fines reconstitution by extrusion, and hydraulic wave comminution.

  8. Technical design and assessment of tube equipment using two-phase flow for cleaning and disinfection.

    PubMed

    Reinemann, D J

    1996-12-01

    Most pipeline systems in dairy and food processing plants are cleaned by circulating cleaning solutions under pressure with a liquid pump. The flow of the circulated solutions is single-phase or flooded flow. Milking system pipelines are subject to special requirements which distinguish them from those in dairy and other food processing plants. Milking system pipelines are considerably larger in diameter than product lines in dairy plants because they must carry both milk and air in a stratified flow condition during the milking process. Milking machine Clean-In-Place (CIP) systems have historically used flooded flow to circulate cleaning solutions. The force to move liquid, however, is typically the vacuum provided by the same vacuum pump used during milking, rather than a positive pressure liquid pump. As the size and complexity of milking machines has increased in recent years, flooded flow CIP systems have become inadequate. The amount of water required to fully flood a milking system becomes impractical with very long and/or large diameter pipelines. The power available to achieve adequate flow velocity is also limited. Air admission has been used to produce two-phase (air/water) slug flow and overcome some of the limitations of fully flooded CIP. Cycled air admission can reduce the amount of water required for circulation and increase flow velocities and thus enhance mechanical cleaning action. Cycled air admission has been implemented in the field largely through trial and error methods. There has been a lack of fundamental design information and testing protocols for air-injected milking machine CIP systems. This has resulted in mixed success in the application of air injected systems. This paper summarizes both laboratory and field research conducted at the University of Wisconsin Milking Research and Instruction lab to provide basic information for the design of air injected CIP systems and methods for field assessment of these systems. Just as properly

  9. Clean, premium-quality chars: Demineralized and carbon enriched. Quarterly report, December 1, 1991--February 29, 1992

    SciTech Connect

    Smith, G.V.

    1992-08-01

    The interaction of methane, methane/oxygen, helium, and hydrogen with IBC-102 coal samples ({le} 2mg) has been investigated in a thermogravimetric reactor at 20{degrees}C--650{degrees}C. The results show that the reactive gases are converting some of the mineral matter of the coal into catalysts through chemical reactions (reduction or oxidation). Also, these gases (except He) dissolve in the softened coal. Added clays (kaolinite and Ca-montmorillonite) increase the reactivity of the coal. This higher reactivity may be attributed to the fact that clays may serve as catalysts for methane activation, may prevent the coal agglomeration, and/or may increase the number of active sites for the reaction by modification of the geometric structure of the coal surface. Differential Scanning Calorimetry (DSC) experiments show that clean coal (no mineral matter) devolatilizes at a lower temperature than raw coal. Also, the preoxidation at 150{degrees}C for 50 minutes results in a 13{degrees} lowering of the devolatilization temperature. ISDR-FTIR experiments suggest that phenol groups of the coal play an important role in the cross-linkage of the coal structure when thermally treated.

  10. Micro-agglomerate flotation for deep cleaning of coal. Quarterly progress report, January 1--March 31, 1993

    SciTech Connect

    Chander, S.; Hogg, R.

    1993-04-01

    We are investigating the use of a hybrid process, Micro-agglomerate flotation, which is a combination of oil-agglomeration and froth flotation. The basic concept is to use small quantities of oil to promote the formation of dense micro-agglomerates with minimal entrapment of water and mineral particles, and to use froth flotation to extract these micro-agglomerates from the water/dispersed-mineral phase. Since the floating units are agglomerates (about 30--50 {mu}m in size) rather than individual coal particles (1--10 {mu}m) the problems of froth overload and water/mineral carryover should be significantly alleviated.Micro-agglomerate flotation has considerable potential for the practical deep cleaning of coal on a commercial scale. In principle, it should be possible to achieve both high selectivity and high yield at reasonable cost. The process requires only conventional, off-the-shelf equipment and reagent usage (oil, surfactants, etc.) should be small. There are, however, complications. The process involves at least five phases: two or more solids (coal and mineral), two liquids (oil and water) and one gas (air). It is necessary to maintain precise control over the chemistry of the liquid phases in order to promote the interfacial reactions and interactions between phases necessary to ensure selectivity. Kinetics as well as thermodynamic factors may be critical in determining overall system response.

  11. Micro-agglomerate flotation for deep cleaning of coal. Quarterly progress report, July 1, 1995--September 30, 1995

    SciTech Connect

    Chander, S.; Hogg, R.

    1995-07-01

    The development of practical technologies for the deep cleaning of coal has been seriously hampered by the problems of carrying out efficient coal/mineral separations at the very fine sizes (often finer than 10 mm) needed to achieve adequate liberation of the mineral matter from the coal matrix. It is generally recognized that surface-based separation processes such as froth flotation or selective agglomeration offer considerable potential for such applications but there remain many problems in obtaining the required selectivity with acceptable recovery of combustible matter. In froth flotation, selectivity is substantially reduced at fine sizes due, primarily, to overloading of the froth phase which leads to excessive carryover of water and entrained mineral matter. Oil agglomeration, on the other hand, can provide good selectivity at low levels of oil addition but the agglomerates tend to be too fragile for separation by the screening methods normally used. The addition of larger amounts of oil can yield large, strong agglomerates which are easily separated but the selectivity is reduced and reagent costs can become excessive.

  12. Micro-agglomerate flotation for deep cleaning of coal. Quarterly progress report, September 30--December 31, 1992

    SciTech Connect

    Chander, S.; Hogg, R.

    1993-01-01

    We are investigating the use of a hybrid process - Micro-agglomerate flotation - which is a combination of oil-agglomeration and froth flotation. The basic concept is to use small quantities of oil to promote the formation of dense micro-agglomerates with minimal entrapment of water and mineral particles, and to use froth flotation to extract these micro-agglomerates from the water/dispersed-mineral phase. Since the floating units are agglomerates (about 30--50 {mu}m in size) rather than individual coal particles (1--10 {mu}m) the problems of froth overload and water/mineral carryover should be significantly alleviated. Micro-agglomerate flotation has considerable potential for the practical deep cleaning of coal on a commercial scale. In principle, it should be possible to achieve both high selectivity and high yield at reasonable cost. The process requires only conventional, off-the-shelf equipment and reagent usage (oil, surfactants, etc.) should be small. There are, however, complications. The process involves at least five phases: two or more solids (coal and mineral), two liquids (oil and water) and one gas (air). It is necessary to maintain precise control over the chemistry of the liquid phases in order to promote the interfacial reactions and interactions between phases necessary to ensure selectivity. Kinetics as well as thermodynamic factors may be critical in determining overall system response.

  13. I-NERI Quarterly Technical Report (April 1 to June 30, 2005)

    SciTech Connect

    Chang Oh; Prof. Hee Cheon NO; Prof. John Lee; Prof. William Martin; Prof. James Holloway; Prof. Jong Kim; Prof. Goon Cherl Park

    2005-06-01

    The objective of this Korean/United States/laboratory/university collaboration is to develop new advanced computational methods for safety analysis codes for very-high-temperature gas-cooled reactors (VHTGRs) and numerical and experimental validation of these computer codes. This study consists of five tasks for FY-03: (1) development of computational methods for the VHTGR, (2) theoretical modification of aforementioned computer codes for molecular diffusion (RELAP5/ATHENA) and modeling CO and CO2 equilibrium (MELCOR), (3) development of a state-of-the-art methodology for VHTGR neutronic analysis and calculation of accurate power distributions and decay heat deposition rates, (4) reactor cavity cooling system experiment, and (5) graphite oxidation experiment. Second quarter of Year 3: (A) Prof. NO and Kim continued Task 1. As a further plant application of GAMMA code, we conducted two analyses: IAEA GT-MHR benchmark calculation for LPCC and air ingress analysis for PMR 600MWt. The GAMMA code shows comparable peak fuel temperature trend to those of other country codes. The analysis results for air ingress show much different trend from that of previous PBR analysis: later onset of natural circulation and less significant rise in graphite temperature. (B) Prof. Park continued Task 2. We have designed new separate effect test device having same heat transfer area and different diameter and total number of U-bands of air cooling pipe. New design has smaller pressure drop in the air cooling pipe than the previous one as designed with larger diameter and less number of U-bands. With the device, additional experiments have been performed to obtain temperature distributions of the water tank, the surface and the center of cooling pipe on axis. The results will be used to optimize the design of SNU-RCCS. (C) Prof. NO continued Task 3. The experimental work of air ingress is going on without any concern: With nuclear graphite IG-110, various kinetic parameters and reaction

  14. Dewatering studies of fine clean coal. Final technical report, September 1, 1991--August 31, 1992

    SciTech Connect

    Parekh, B.K.

    1992-12-31

    Physical cleaning of ultra-fine coal using advanced froth flotation technique provides a low ash product; however, the amount of water associated with clean coal is high. Economic removal of water from the froth will be important for commercial applicability of the advanced flotation processes. The main objective of the present research program is to study and understand dewatering characteristics of ultra-fine clean coal and to develop process parameters to effectively reduce the moisture to less than 20 percent in the clean coal product. The research approach utilized synergistic effect of metal ions and surfactant addition to lower the moisture of clean coal using the conventional vacuum dewatering technique. The studies have identified a combinations of metal ions and surfactants in providing a 22 percent moisture filter cake. Surface chemical study indicated a direct correlation between the point-of-zero charge (PZC) of metal ion/fine coal system and lowering of moisture in the filter cake. Adsorption of either metal ions or surfactants alone did not provide a significant reduction of moisture in the filter cake. However, a combination of the two provided a filter cake containing about 22 percent moisture. Filtration tests conducted using a laboratory vacuum drum filter indicated that the results obtained in batch filtration could be reproduced on a continuous filtration unit. FT-IR studies indicated that anionic surfactant and metal ions form complex species which adsorbs on the fine coal and results in improved moisture reduction during filtration. Recommendations are offered for testing this novel dewatering process on a pilot scale at a coal preparation plant in Illinois.

  15. Micro-agglomerate flotation for deep cleaning of coal. Quarterly progress report, July 1-September 30, 1996

    SciTech Connect

    Chander, S.; Hogg, R.

    1996-12-01

    The goals of this research program are to demonstrate the technical and economic feasibility of a micro-agglomerate flotation process and to establish the essential criteria for reagent selection and system design and operation. We are investigating the use of a hybrid process - Micro-agglomerate flotation - which is a combination of oil-agglomeration and froth flotation. The basic concept is to use small quantities of oil to promote the formation of dense micro- agglomerates with minimal entrapment of water and mineral particles, and to use froth flotation to extract these micro-agglomerates from the water/dispersed-mineral phase. Since the floating units are agglomerates (about 30-50 mm in size) rather than individual coal particles (1-10 mm) the problems of froth overload and water/mineral carryover should be significantly alleviated.

  16. TIDD PFBC Demonstration Project. First quarterly technical progress report, CY 1993

    SciTech Connect

    Not Available

    1993-04-01

    This is the 24th Technical Progress Report submitted in connection with the cooperative agreement between the DOE and the Ohio Power Company for the Tidd Pressurized Fluidized Bed Combustion (PFBC) Demonstration Plant. This report covers the period from January 1, 1993 to March 31, 1993. The following activities are reported: The unit was operated for a total of 331 hours (including gas turbine air prewarming). There were three gas turbine starts, five bed preheater starts, and two operating periods with coal fire. The peak gross output of 61 MWH was achieved for the period of 2200 to 2300 hours on January 20, 1993. The longest coal fire was 273 hours beginning at 0605 hours on January 20, 1993; total gross generation was 13,453 MWH, and coal consumption was 6,481 tons; The sorbent fines injection system was installed and is ready for use; A totally new secondary ash removal system was designed; New sparge ducts are being fabricated to replace the existing ducts; The plant was found to be in compliance with applicable Ohio regulation after an EPA inspection; and The unit has been out of service since early February due to the failure of the gas turbine. Replacement parts are being fabricated

  17. Soot formation in synthetic-fuel droplets. Second quarterly technical progress report

    SciTech Connect

    England, G.; Kramlich, J.; Payne, R.

    1981-04-01

    The main objective of this program is to provide detailed information on methods of minimizing soot formation during synthetic liquid fuel combustion under conditions which minimize the formation of nitric oxides. The program comprises two main tasks, Fuel Screening Studies, and Flame Studies. The purpose of the first task is to investigate the impact of fuel properties on particulate production, to establish the importance of droplet size and examine atomizer effects, and to develop techniques for surrogate fuels production. In the second task, fundamental details of soot formation from synfuel droplet combustion will be investigated in variable slip velocity configurations. This report describes technical progress during the second three-month period of program effort (January-March 1981). During this period attention has continued to be focussed on the design, construction and commissioning of experimental systems. The Task 1 tunnel furnace modification was completed and made operational, and some preliminary fuel screening studies were carried out. Similarly, construction of the controlled flow droplet reactor was completed and efforts directed towards the design and testing of diagnostic systems. Details of this work are discussed.

  18. Pipeline gas demonstration plant, Phase I. Quarterly technical progress report, December 1980-February 1981

    SciTech Connect

    Eby, R.J.

    1981-03-01

    Work was performed in the following areas of the Pipeline Gas Demonstration Plant Program: site evaluation and selection; demonstration plant environmental analysis; feedstock plans, licenses, permits and easements; demonstration plant definitive design; construction planning; economic reassessment; technical support; long lead procurement list; and project management. Major work activity continued to be the effort on Demonstration Plant Definitive Design. A Construction Readiness Audit was held on January 14 to 16, 1981 by a Government/Procon team to review the project and assess the readiness of the project to proceed into the construction phase. Documents for the 60% Design Review were prepared for ICGG review and submitted to the Contracting Officer's authorized representative prior to transmittal to the Corps of Engineers for review. The Corps of Engineers conducted a design audit. The primary objective of the audit was to prepare an independent estimate of the work remaining to complete Phase I of the project. Work continued on the production of a single bid package for the Demonstration Plant, suitable for release to a single constructor, and organized so it can be easily broken down into subpackages by construction specialty. A formal audit of the ICGG R/QA Plan and implementation thereof was performed February 11-12, 1981 by the Corps of Engineers. The Contract Deliverable Final Feedstock-Product-Waste Disposal Plan was delivered to the Government on February 25, 1981.

  19. Thermal treatment for chlorine removal from coal. [Quarterly] technical report, March 1, 1992--May 31, 1992

    SciTech Connect

    Muchmore, C.B.; Hesketh, H.E.; Chen, Han Lin

    1992-10-01

    It is the goal of this research to provide the technical basis for development of a process to remove chlorine from coal prior to combustion, based on a thermal treatment process. Under the reaction conditions employed, the behavior of other trace elements of concern will also be evaluated. The recovery of the chlorine removed from the coal as a marketable byproduct, calcium chloride suitable for use as a road deicer, is also being investigated using a novel absorption/crystallization device. A value of 6.29 hr{sup {minus}1} was determined for the dechlorination rate constant of IBC-109 coal at 385{degrees}C, and an activation energy of 34.7 kcal/mol was obtained from an Arrhenius plot over the temperature range of 300--385{degrees}C. A significant removal of chlorine (84.3%) was attained while retaining 92% of the energy of the coal in the solid product by preheating the coal at lower temperatures prior to a six-minute reaction at 385{degrees}C. Volatiles lost during the thermal dechlorination may be recovered for their heating value, and/or as a source of chemical feedstocks; this aspect will require further study, but it appears that the overall energy balance on the system should prove to be favorable. The design of the bench scale fluidized bed thermal dechlorination unit has been completed, and components ordered. Operation of this system should provide the information required for further scale-up of the process.

  20. Pulverized coal firing of aluminum melting furnaces. Quarterly technical progress report, July 1-September 30, 1979

    SciTech Connect

    West, C E

    1980-09-01

    The ultimate objective of this program is the commercial demonstration of an efficient, environmentally acceptable coal firing process suitable for implementation on melting furnaces throughout the aluminum industry. To achieve this goal, the program has been divided into two phases. Phase I has begun with the design and construction of a 350 pound (coal) per hour staged slagging cyclone combustor (SSCC) attached to a 7-ft diameter aluminum melting ladle furnace. Process development will culminate with a 1000 pph prototype SSCC firing a 40,000 pound capacity open hearth melting furnace at the Alcoa Laboratories. Phase II implementation is currently planned for Alcoa's Lafayette, IN, Works, where two of the ingot plant's five open hearth melting furnaces will be converted to utilize coal. In addition to confirmation of data gathered in Phase I, the effect of extended production schedule operation on equipment and efficiencies will be determined. This work would begin in 1982 pursuant to technical and economic evaluation of the process development at that time.

  1. Micro-agglomerate flotation for deep cleaning of coal. Quarterly progress report, January 1, 1995--March 31, 1995

    SciTech Connect

    Chander, S.; Hogg, R.

    1995-04-01

    The development of practical technologies for the deep cleaning of coal has been seriously hampered by the problems of carrying out efficient coal/mineral separations at the very fine sizes (often finer than 10 mm) needed to achieve adequate liberation of the mineral matter from the coal matrix. In froth flotation, selectivity is substantially reduced at fine sizes due, primarily, to overloading of the froth phase which leads to excessive carryover of water and entrained mineral matter. Oil agglomeration, on the other hand, can provide good selectivity at low levels of oil addition but the agglomerates tend to be too fragile for separation by the screening methods normally used. The addition of larger amounts of oil can yield large, strong agglomerates which are easily separated but the selectivity is reduced and reagent costs can become excessive. We are investigating the use of a hybrid process - Micro-agglomerate flotation which is a combination of oil-agglomeration and froth flotation. The basic concept is to use small quantities of oil to promote the formation of dense micro-agglomerates with minimal entrapment of water and mineral particles, and to use froth flotation to extract these micro-agglomerates from the water/dispersed-mineral phase. Since the floating units are agglomerates (about 30-50 mm in size) rather than individual coal particles (1-10 mm) the problems of froth overload and water/mineral carryover should be significantly alleviated. There are, however, complications. The process involves at least five phases: two or more solids (coal and mineral), two liquids (oil and water) and one gas (air). It is necessary to maintain precise control over the chemistry of the liquid phases in order to promote the interfacial reactions and interactions between phases necessary to ensure selectivity. Kinetics as well as thermodynamic factors may be critical in determining overall system response.

  2. POC-scale testing of an advanced fine coal dewatering equipment/technique: Quarterly technical progress report No. 9, October 1996--December 1996

    SciTech Connect

    Tao, D.; Groppo, J.G.; Parekh, B.K.

    1997-01-21

    The advanced fine-coal cleaning techniques such as column flotation, recovers a low-ash ultra-fine size clean-coal product. However, economical dewatering of the clean coal product to less than 20 percent moisture using conventional technology is difficult. This research program objective is to evaluate a novel coal surface modification technique developed at the University of Kentucky Center for Applied Energy Research in conjunction with conventional and advanced dewatering technique at a pilot scale at the Powell Mountain Coal Company`s Mayflower preparation plant located in St. Charles, VA. During this quarter in the laboratory dewatering studies were conducted using copper and aluminum ions showed that for the low sulfur clean coal slurry addition of 0.1 Kg/t of copper ions was effective in lowering the filter cake moisture from 29 percent to 26.3 percent. Addition of 0.3 Kg/t of aluminum ions provided filter cake with 28 percent moisture. For the high sulfur clean coal slurry 0.5 Kg/t of copper and 0.1 Kg/t of aluminum ions reduced cake moisture from 30.5 percent to 28 percent respectively. Combined addition of anionic (10 g/t) and cationic (10 g/t) flocculants was effective in providing a filter cake with 29.8 percent moisture. Addition of flocculants was not effective in centrifuge dewatering. In pilot scale screen bowl centrifuge dewatering studies it was found that the clean coal slurry feed rate of 30 gpm was optimum to the centrifuge, which provided 65 percent solids capture. Addition of anionic or cationic flocculants was not effective in lowering of filter cake moisture, which remained close to 30 percent for both clean coal slurries.

  3. Instrumentation of dynamic gas pulse loading system. Technical progress report, first quarter 1992

    SciTech Connect

    Mohaupt, H.

    1992-04-14

    The overall goal of this work is to further develop and field test a system of stimulating oil and gas wells, which increases the effective radius of the well bore so that more oil can flow into it, by recording pressure during the gas generation phase in real time so that fractures can be induced more predictably in the producing formation. Task 1: Complete the laboratory studies currently underway with the prototype model of the instrumentation currently being studied. Task 2: Perform field tests of the model in the Taft/Bakersfield area, utilizing operations closest to the engineers working on the project, and optimize the unit for various conditions encountered there. Task 3: Perform field test of the model in DGPL jobs which are scheduled in the mid-continent area, and optimize the unit for downhole conditions encountered there. Task 4: Analyze and summarize the results achieved during the complete test series, documenting the steps for usage of downhole instrumentation in the field, and compile data specifying use of the technology by others. Task 5: Prepare final report for DOE, and include also a report on the field tests completed. Describe and estimate the probability of the technology being commercialized and in what time span. The project has made substantial technical progress, though we are running about a month behind schedule. Expenditures are in line with the schedule. Increased widespread interest in the use of DGPL stimulation has kept us very busy. The computer modeling and test instrumentation developed under this program is already being applied to commercial operations.

  4. Appalachian Clean Coal Technology Consortium. Technical progress report, January 1, 1995--March 31, 1995

    SciTech Connect

    Feeley, T.J. III

    1995-06-26

    The Appalachian Clean Coal Technology Consortium (ACCTC) has been established to help U.S. Coal producers, particularly those in the Appalachian region, increase the production of lower-sulfur coal. The cooperative research conducted as part of the consortium activities will help utilities meet the emissions standards established by the 1990 Clean Air Act Amendments, enhance the competitiveness of U.S. coals in the world market, create jobs in economically-depressed coal producing regions, and reduce U.S. dependence on foreign energy supplies. The consortium has three charter members, including Virginia Polytechnic Institute and State University, West Virginia University, and the University of Kentucky. The Consortium also includes industry affiliate members that form an Advisory Committee. Affiliate members currently include AMVEST Minerals; Arch Minerals Corp.; A.T. Massey Coal Co.; Carpco, Inc.; CONSOL Inc.; Cyprus Amax Coal Co.; Pittston Coal Management Co.; and Roberts & Schaefer Company. First year research has focused on fine coal dewatering and modeling.

  5. Appalachian Clean Coal Technology Consortium. Technical progress report, October 10, 1994--December 31, 1994

    SciTech Connect

    Feeley, T.J. III

    1995-06-26

    The Appalachian Clean Coal Technology Consortium (ACCTC) has been established to help U.S. Coal producers, particularly those in the Appalachian region, increase the production of lower-sulfur coal. The cooperative research conducted as part of the consortium activities will help utilities meet the emissions standards established by the 1990 Clean Air Act Amendments, enhance the competitiveness of U.S. coals in the world market, create jobs in economically-depressed coal producing regions, and reduce U.S. dependence on foreign energy supplies. The consortium has three charter members, including Virginia Polytechnic Institute and State University, West Virginia University, and the University of Kentucky. The Consortium also includes industry affiliate members that form an Advisory Committee. Affiliate members currently include AMVEST Minerals; Arch Minerals Corp.; A.T. Massey Coal Co.; Carpco, Inc.; CONSOL Inc.; Cyprus Amax Coal Co.; Pittston Coal Management Co.; and Roberts & Schaefer Company. First year activites are focused on dewatering and modeling of spirals.

  6. Hybrid 240 Ton Off Highway Haul Truck: Quarterly Technical Status Report 19, DOE/AL68080-TSR19

    SciTech Connect

    Tim Richter

    2007-06-30

    This nineteenth quarterly status report for the Hybrid Off Highway Vehicle (OHV) project, DOE Award DE-FC04-02AL68080 presents the project status at the end of June 2007, and covers activities in the nineteenth project quarter, April 2007 – June 2007.

  7. Development of vanidum-phosphate catalysts for methanol production by selective oxidation of methane. Quarterly technical progress report, 1996

    SciTech Connect

    McCormick, R.L.; Alptekin, G.O.

    1996-06-01

    Activities this past quarter, focused on acquisition of kinetic data for oxidation of formaldehyde and methanol on these catalysts. In the next quarter these results will be used to propose a simple reaction network and kinetic model. To date we have completed Task 1: Laboratory Setup and Task 2: Process Variable Study. Activities in the current quarter focused on finalizing these tasks and on Task 3: Promoters and Supports, this task is approximately 50% completed. Task 4: Advanced Catalysts is to be initiated in the next quarter. Specific accomplishments this quarter include: finalizing and calibrating a new reaction product analytical system with markedly improved precision and accuracy relative to older. approaches; development of procedures for accurately feeding formaldehyde to the reactor; examination of formaldehyde and methanol oxidation kinetics over vanadyl pyrophosphate at a range of temperatures; and preliminary studies of methane oxidation over a silica support.

  8. Coal log pipeline research at University of Missouri. Second quarterly technical progress report, 1 April--30 June 1996

    SciTech Connect

    Liu, H.

    1996-06-01

    During this quarter, significant progress has been made in the following, fronts of coal log pipeline research, development and technology transfer: 1. Design of the special 300-ton coal log compaction machine was completed, Furthermore, much progress has been made in the design of the system needed to feed coal into the coal log compaction machine, and the design of the system to remove logs automatically as soon as they are compacted. 2. Coal mixtures containing different amounts of moisture were compacted into 1.91- inch-diameter coal logs rapidly (in 6 seconds). It was found that for the Mettiki coal tested, the optimum moisture is around 8%. Under the test conditions (room temperature and 3% binders), the rapidly compacted coal logs with 8% moisture had less than 4% weight loss in 350 cycles of circulation. 3. Completed evaluation of the effectiveness of using wall lubricants to enhance coal log quality. Both calcium sterarate and MoS{sub 2} were found to be effective. 4. It was found that when the interior of a mold is not cleaned after coal log has been compacted, the coal mixture film clinging to the wall hardens in time and form a hard crust which affects the quality of the next log to be produced. But, if the second log is produced immediately after the first, no hard crust is formed and the quality of the second log, is not affected. 5. Coal logs made with the coal crushed by the Gundlach Company were found to be better than coal logs made with the coal crushed by the CPRC`s hammer mill. 7. A 320-ft-long, 6-inch-diameter coal log pipeline test facility was constructed in Rolla during this period. 8. Completed the simulation of an 8-inch-diameter, 20-mile-long coal log pipeline recirculating loop driven by a pump bypass. 9. Continued improvement was accomplished in the hydraulic model of HCP and CLP to predict pressure drop and capsule velocity for both single capsules and capsule train. Also, work has started to extend the analysis to sloped pipelines.

  9. Clean ferrous casting technology research. Final technical report, September 29, 1993--December 31, 1995

    SciTech Connect

    Bates, C.E.; Griffin, J.; Giese, S.R.; Lane, A.M.

    1996-01-31

    This is the final report covering work performed on research into methods of attaining clean ferrous castings. In this program methods were developed to minimize the formation of inclusions in steel castings by using a variety of techniques which decreased the tendency for inclusions to form during melting, casting and solidification. In a second project, a reaction chamber was built to remove inclusions from molten steel using electromagnetic force. Finally, a thorough investigation of the causes of sand penetration defects in iron castings was completed, and a program developed which predicts the probability of penetration formation and indicates methods for avoiding it.

  10. TECHNICAL APPROACHES TO CHARACTERIZING AND CLEANING UP AUTOMOTIVE REPAIR SITES UNDER THE BROWNFIELDS INITIATIVE

    EPA Science Inventory

    The document provides brownfields planners with an overview of the technical methods that can be used to achieve successful site assessment and cleanup which are two key components of the brownfields redevelopment process. No two brownfields sites are identical and planners will...

  11. TECHNICAL APPROACHES TO CHARACTERIZING AND CLEANING UP METAL FINISHING SITES UNDER THE BROWNFIELDS INITIATIVE

    EPA Science Inventory

    The document provides brownfields planners with an overview of the technical methods that can be used to achieve successful site assessment and cleanup which are two key components of the brownfields redevelopment process. No two brownfields sites are identical and planners will...

  12. TECHNICAL APPROACHES TO CHARACTERIZING AND CLEANING UP IRON AND STEEL MILL SITES UNDER THE BROWNFIELDS INITIATIVE

    EPA Science Inventory

    This document provides brownfields planners with an overview of the technical methods that can be used to achieve successful site assessment and cleanup which are two key components of the brownfields redevelopment process. No two brownfields sites are identical and planners will...

  13. Control of pyrite surface chemistry in physical coal cleaning. Twelfth quarterly technical progress report, June 1, 1992--August 31, 1992

    SciTech Connect

    Yoon, R.H.; Richardson, P.R.

    1992-12-31

    Over the past 10 years, much research has provided convincing evidence that one major difficulty in using froth flotation to separate pyrite from coal is the ``self-induced`` flotation of pyrite. Numerous studies have attempted to identify reactions that occur under moderate oxidizing conditions, which lead to self-induced flotation, and to identify the oxidization products. During the past two report periods, it was established that: (1) freshly fractured pyrite surfaces immediately assume, at fracture, an electrode potential several hundred millivolts more negative than the usual steady state mixed potentials. Within minutes after fracture, the electrodes oxidize and reach higher steady state potentials. It was also shown, by photocurrent measurements, that a negative surface charge (upward band bending) already exists on freshly fractured pyrite, and (2) particle bed electrodes can be used to control the oxidation of pyrite and to precisely determine the electrochemical conditions where flotation occurs, or is depressed. By circulating the solution phase to an ultraviolet spectrometer, soluble products produced on pyrite by oxidation and reduction can be determined, e.g., HS{sup {minus}} was identified as a soluble cathodic reduction product. These and other studies have provided considerable information concerning the anodic oxidation of pyrite. Much less is known about the mechanism and kinetics of oxygen reduction, the other half of the mixed potential reaction. To better understand pyrite oxidation kinetics and determine if oxygen reduction is rate determining, studies have been conducted during this report period on the oxygen reduction reaction with pyrite. In addition, to provide further support that the potential of particle bed electrodes can be controlled, the electro-adsorption and desorption of an organic surfactant was studied.

  14. Pelletizing/reslurrying as a means of distributing and firing clean coal. Final quarterly technical progress report No. 7, Appendices

    SciTech Connect

    Not Available

    1992-06-09

    This volume contains appendices for: atomization test report; cost estimation model--pelletization material balance and equipment selection; cost estimation model--pelletization capital investment estimates; cost estimation--pelletization operating cost estimates; cost estimation model--pellet-CWF formulation material balance and equipment selection; cost estimation model--pellet-CWF capital investment estimates; cost estimation model--pellet-CWF operating cost estimates; and cost estimation model--direct CWF operating cost estimates.

  15. A comparison study of column flotation technologies for cleaning Illinois coal. [Quarterly] technical report, December 1, 1993--February 28, 1994

    SciTech Connect

    Honaker, R.Q.; Paul, B.C.

    1994-06-01

    The objectives of this research project are to optimize the performance of six commercially available column technologies for the treatment of Illinois Basin coal fines and to compare their performance on the basis of the recovery-grade curve and column throughput capacity. A statistically-designed, experimental program will be conducted to optimize the critical operating performance values of each flotation column. During the previous reporting period, construction and installation of the six flotation columns were completed. The flotation feed sample that will be used for the tests in this investigation was collected from a coal preparation plant treating the Illinois No. 5 seam coal. During this reporting period, the flotation feed sample was characterized on a size-by-size basis for its ash, total sulfur, and BTU content. A release analysis was also conducted to obtain the best possible recovery versus product grade curve that can be achieved by a froth flotation process for the treatment of the Illinois No. 5 flotation feed sample. Experiments were initiated on the Jameson Cell. The preliminary results indicate that the Jameson Cell achieves a separation performance that is close to the release data. The experimental program on the Jameson Cell and the other flotation technologies will be performed during the next reporting period.

  16. Build, install and demonstrate a variable stroke pump control and windmill system: 2nd quarterly technical progress report

    SciTech Connect

    Not Available

    1986-12-30

    Most of the time during the second quarter has been spent on the new gear drive. At the end of the 1st quarter the VSM (Variable Stroke Mechanism) was approximately 50% complete. Some work was done the second quarter on the VSM. An all steel mount was nearly completed for the hydraulic cyclinder. The purchased parts to finish the plumbing are on hand, the feedback control chain purchased, and one of the two pulleys was made. A safety device, that could be optional, is being designed and constructed. This addition would prevent damage to the equipment if all of the hydraulic fluid were lost for some reason.

  17. Application of integrated reservoir management and reservoir characterization to optimize infill drilling. Quarterly technical progress report, September 13--December 12, 1996

    SciTech Connect

    1996-12-12

    Eighteen 10-acre infill wells have been drilled and completed as part of the Field Demonstration phase of the project at the North Robertson (Clearfork) Unit (NRU). The fourteen producing wells are pumped-off and producing at stable rates. The four injection wells are completed and have been on injection for three to four weeks. Current Unit production is approximately 3,400 STBO/D, of which approximately 900 STBO/D is being produced from the 10-acre infill wells. A change in the Statement of Work has been approved so that additional 10-acre infill wells can be drilled and/or 20-acre producing wells can be converted to injection during the next quarter as budget constraints and rig availability allow. Technical progress is described for the quarter in many related areas: implementation of the field demonstration; reservoir characterization; reservoir management activities and performance analysis; reservoir simulation; and technology transfer.

  18. Deliberate Science, Continuum Magazine: Clean Energy Innovation at NREL, Winter 2012 (Book)

    SciTech Connect

    Not Available

    2012-02-01

    This quarterly magazine is dedicated to stepping beyond the technical journals to reveal NREL's vital work in a real-world context for our stakeholders. Continuum provides insights into the latest and most impactful clean energy innovations, while spotlighting those talented researchers and unique facilities that make it all happen. This edition focuses on deliberate science.

  19. Microgas dispersion for fine-coal cleaning. Technical progress report, March 1, 1981-August 31, 1981

    SciTech Connect

    Yoon, R.H.; Halsey, G.S.; Sebba, F.

    1981-01-01

    The results of the flotation tests conducted demonstrate that the use of fine colloidal gas aphrons (CGA) bubbles is beneficial for fine coal flotation. As demonstrated with the ultrafine coal sample, the froth products of CGA flotation are almost twice as clean as those of the conventional flotation tests at 70% yield. The kerosene consumption was considerably higher, however, both in conventional and in CGA flotation. Attempts were made to coat the CGA bubbles with a film of kerosene and use them for flotation, hoping that this would reduce the oil consumption. However, no positive results have yet been obtained with this process. Another problem associated with CGA flotation is that the ash content of the froth products is relatively high when using a stable CGA, such as that prepared with Dowfroth M150. On the other hand, when using an unstable CGA, as is the case with MIBC, low ash clean coal products can be obtained, but at the expense of the yield. Two approaches are being investigated to correct this problem. A considerable amount of effort has been made to determine the surface charge of the CGA.

  20. Interaction of highly vibrationally excited molecules with clean metal surfaces. Final technical report

    SciTech Connect

    Wodtke, A.M.; Auerbach, D.J.

    1998-11-01

    The authors present results from a grant funded under the Department of Energy Office of Basic Energy Sciences. A collaboration between Prof. Alec Wodtke of the Department of Chemistry at UCSB and Daniel J. Auerbach of IBM Almaden Research Labs has allowed new experiments on the dynamics of surface chemical reactivity to be successfully executed. High quality data has been generated which provides an excellent test of theoretical models of surface reactivity, a topic of importance to catalysis. The authors have obtained the first experimental measurements on the influence of reactant velocity on the steric effect in a chemical reaction: the dissociative adsorption of hydrogen on copper. They have also designed and built a molecular beam scattering apparatus for the study of highly vibrationally excited molecules and their interactions with clean and oxidized metal surfaces. With this apparatus they have observed the vibrational energy exchange of highly vibrationally excited NO with an oxidized copper surface. Multi-quantum vibrational relaxation was found ({Delta}v = 1-5). Such remarkably strong and efficient vibrational energy transfer represents a qualitatively new phenomenon and is representative of the exciting new behavior that they had hoped might be observable in this project. Evidence of chemical reactivity of vibrationally excited NO on a clean copper surface was also found.

  1. [National Institute for Petroleum and Energy Research] quarterly technical report, October 1--December 31, 1992. Volume 2, Energy production research

    SciTech Connect

    Not Available

    1993-04-01

    Accomplishments for the past quarter are described for the following tasks: chemical flooding--supporting research; gas displacement--supporting research; thermal recovery--supporting research; geoscience technology; resource assessment technology; and microbial technology.

  2. Detoxification and generation of useful products from coal combustion wastes: Quarterly technical report, (October--December 1988)

    SciTech Connect

    Not Available

    1988-01-01

    This quarter, samples of dry fly ash, wet bottom ash, and desulfurization gypsum slurry were provided from an Ohio Edison power plant. Chemical analysis mineralogical examination, and an anion analysis were performed on the samples. 2 figs., 1 tab. (CBS)

  3. Solar production of industrial process steam at the Home Cleaning and Laundry Co. Final technical report

    SciTech Connect

    Not Available

    1984-06-01

    This report presents the results of the operation and performance evaluation period at the Home Laundry Solar Industrial Process Heat Project at Pasadena, California. The installation comprises 6496 ft/sup 2/ (603.5 m/sup 2/) of linear parabolic trough concentrating collectors supplying solar thermal energy for use in laundry and dry cleaning processes. The design phase began in September 1977, and an acceptance test was conducted during the week of April 12, 1982. The plant has been in operation since May 1982, with the 12-month Phase III (operational) period starting in October 1982. The objective of the operational evaluation experiment was to maximize energy delivery to the industrial participant while characterizing system performance. Data were acquired for monthly documentation of system performance, maintenance requirements, and operating costs.

  4. Microgas dispersion for fine-coal cleaning. Technical progress report, September 1, 1980-February 28, 1981

    SciTech Connect

    Yoon, R.H.; Sebba, F.

    1980-01-01

    The purpose of this project is to develop a method of cleaning fine coal by flotation using very small microbubbles now known as Colloidal Gas Aphrons (CGA) and previously known as Microgas Dispersions (MGD). It was thought that MGD was not sufficiently descriptive of the nature of the small bubbles, and hence, the change was made. The objectives of the past six months of investigation were as follows: (1) a fundamental study of the properties of CGA, which involved (i) a study of the stability of the bubbles generated with several frothers that are currently used in the mineral industry, (ii) a study of the charge on the bubbles, and (iii) a microscopic inspection of the bubbles during flotation; (2) a preliminary investigation of the flotation characteristics of coal; and (3) construction of an automatic batch flotation machine, similar to the one described by Miller (1980).

  5. Appalachian Clean Coal Technology Consortium. Technical progress report, January 1--March 31, 1996

    SciTech Connect

    1996-05-23

    The Appalachian Clean Coal Technology Consortium has been established to help U.S. Coal producers, particularly those in the Appalachian region, increase the production of lower-sulfur coal. In keeping with the recommendations of the Advisory Committee, first-year R&D activities are focused on two areas of research: fine coal dewatering and modeling of spirals. The industry representatives to the Consortium identified fine coal dewatering as the most needed area of technology development. Dewatering studies are conducted by Virginia Tech`s Center for Coal and Minerals Processing. A spiral model will be developed by West Virginia University. The research to be performed by the University of Kentucky has recently been defined as: A Study of Novel Approaches for Destabilization of Flotation Froth. Accomplishments to date of these three projects are presented in this report.

  6. Learning the Hang Power Clean: Kinetic, Kinematic, and Technical Changes in Four Weightlifting Naive Athletes.

    PubMed

    Haug, William B; Drinkwater, Eric J; Chapman, Dale W

    2015-07-01

    The investment in learning required to reach benefit with weightlifting training is currently not well understood in elite athletes. The purpose of this investigation was to quantify changes in vertical jump power production and kinematic variables in hang power clean (HPC) performance during the learning process from a naive state in a multiple single-subject research design. Four elite athletes undertook HPC learning for approximately 20-30 minutes twice per week over a 169-day period. Changes in parameters of vertical power production during squat jump (SJ) and countermovement jump (CMJ) were monitored from baseline (day 0) and at 3 additional occasions. Hang power clean movement kinematics and bar path traces were monitored from day 35 and at 3 additional occasions particular to the individual's periodized training plan. Descriptive statistics were reported within athletes as mean ± SD. We observed a 14.1-35.7% (SJ) and a -14.4 to 20.5% (CMJ) gain in peak power across the 4 jump testing occasions with improvements over the first 4 weeks (SJ: 9.2-32.6%; CMJ: -2.91 to 20.79%). Changes in HPC movement kinematics and barbell path traces occurred for each athlete indicating a more rearward-directed center of pressure over the concentric phase, greater double knee bend during the transition phase, decreased maximal plantar flexion, and minimal vertical displacement of body mass with HPC learning. Considering the minimal investment of 4 weeks to achieve increases in vertical power production, the benefits of training with HPC justified the associated time costs for these 4 elite athletes.

  7. Quarterly Technical Progress Report

    SciTech Connect

    Yi Hua Ma

    1998-03-16

    The temperature dependence of the oxygen flux across the BaCe0G03 dense membrane (BCG membrane) tube was investigated. In the temperature range of 688C to 955C, the increase in the oxygen flux with temperature obeyed the Arrhenius law. An increase in the helium sweep flow membrane tube. rate in the tube side resulted in an increase in the oxygen flux through the The oxygen fluxes through the BCG dense membrane tube were measured at different oxygen partial pressures in the shell side. The oxygen flux increased with the oxygen partial pressure in the shell side. The BCG dense membrane was tested in a membrane reactor for the catalytic oxidative coupling of methane. The BCG membrane is not a complete combustion catalyst, and the catalytic activity of the BCG membrane was found to be much higher than the Argonne dense membrane. As the oxygen partial pressure in the shell side increased, the C2 decreased while the C2 yield remained unchanged, indicating that non-selective, reactions still played a significant role in the membrane reactor.

  8. A novel carbon-based process for flue gas cleanup. Third quarterly technical progress report, January 1--March 31, 1992

    SciTech Connect

    Gangwal, S.K.; Silveston, P.L.

    1992-04-01

    The objective of this project is to demonstrate the preliminary technical and economic feasibility of a novel carbon-based process for removal of at least 95% SO{sub 2} and at least 75% NO{sub x} coal combustion flue gas. In the process, flue gas leaving the electrostatic precipitator (ESP) is passed through a trickle bed of achieved carbon catalyst employing a periodic flush of low strength sulfuric acid. The SO{sub 2} is oxidized to SO{sub 3} and removed as medium strength sulfuric acid. The SO{sub 2}-free flue gas is then mixed with NH{sub 3}, and the NO{sub x} in the gas is subjected to selective catalytic reduction (SCR) to N{sub 2} over a fixed bed of activated carbon catalyst. The experimental work is divided between Research Triangle Institute (RTI) and the University of Waterloo (Waterloo). RTI will conduct the NO{sub x} removal studies, whereas Waterloo will conduct the SO{sub 2} removal studies. The ultimate goal of the project is to demonstrate that the process can be reduce the cost of electricity by 20% over conventional SCR/flue gas desulfurization (FGD) processes. In the present quarter, the continuous SO{sub 2} analyzer system at Waterloo was completed. The SO{sub 2} removal factorial experiments were begun Waterloo with the BPL carbon at 21{degrees}C. Also, SO{sub 2} removal was tested on two catalyst at RTI at 80{degrees}C. NO{sub x} conversion was tested on a variety of catalysts at RTI. It was shown that the BPL carbon could remove over 95% SO{sub 2} at 21{degrees}C but would required several beds at space velocity in each bed of abut 1,500 scc/(cc{center_dot}h) to reduce SO{sub 2} from 2,500 ppm to 100 ppm. A modified carbon catalyst tested at RTI showed 99% SO{sub 2} removal at 80{degrees}C at 1,400 scc/(cc{center_dot}h). Also, it was possible to produce nearly 9 normal H{sub 2}SO{sub 4} by periodic flushing of this catalyst. The modified carbon catalyst also demonstrated removal of more than 80% NO{sub x}. 7 refs., 7 figs., 4 tabs.

  9. Production and screening of carbon products precursors from coal. Quarterly technical progress report No. 5, January 1,1996--March 31, 1996

    SciTech Connect

    1996-04-01

    Individual quarterly reports of four industrial participants of this project are included in this report. The technical emphasis continues to be the supply of coal-based feedstocks to the industrial participants. There have been several iterations of samples and feedback to meet feedstock characteristics for a wide variety of carbon products. Technology transfer and marketing of the Carbon Products Consortium (CPC) is a continual effort. Interest in the program and positive results from the research continue to grow. In several aspects, the program is ahead of schedule.

  10. Development of vanadium-phosphate catalysts for methanol production by selective oxidation of methane. Quarterly technical progress report No. 9, April 1995--June 1995

    SciTech Connect

    McCormick, R.L.

    1995-09-14

    This document is the ninth quarterly technical progress report under Contract No. DE-AC22-92PC92110 {open_quotes}Development of Vanadium-Phosphate Catalysts for Methanol Production by Selective Oxidation of Methane{close_quotes}. Activities were focused on fine tuning of the microreactor system by elimination of transport effects and improvements in the analytical system. Process variable studies were conducted on vanadyl pyrophosphate and screening studies were conducted on several modified catalyst. One additional catalyst was prepared and characterization studies continued. These results are reported.

  11. Appalachian Clean Coal Technology Consortium: Technical progress report, October 1--December 31, 1995

    SciTech Connect

    1996-04-23

    In the dewatering project, two different approaches are taken. One approach involves displacing the water on the surface of coal by a hydrophobic substance that can be readily recovered and recycled. This novel concept, referred to as the Hydrophobic Dewatering (HD) process, is based on improved understanding of the surface chemistry of dewatering. The other approach is to use disposable dewatering substances in mechanical dewatering. The objectives of the proposed work are (1) to test the HD process on a variety of coals from the Appalachian coal fields, and (2) to identify suitable dewatering reagents that would enable mechanical dewatering to reduce the moisture to the levels satisfactory to electrical utilities and other coal users. The objective of the spiral separation project is to use computer modeling to develop better, more efficient spiral designs for coal cleaning. The fully-developed model will predict spiral performance based on variations in spiral profile, flow rate, and pitch. Specific goals are to: (1) design spirals capable of making separations at a specific gravity of 1.5, and (2) broaden the size range at which spirals make effective separations.

  12. Development of vanadium-phosphate catalysts for methanol production by selective oxidation of methane. Quarterly technical progress report No. 6, July--September 1994

    SciTech Connect

    McCormick, R.L.

    1995-01-10

    This is the eighth quarterly technical progress report. During this quarter the project was initiated, after transfer via a novation agreement, at the Colorado School of Mines. Project initiation activities have included: set up of catalyst synthesis apparatus; training on x-ray diffraction and FTIR apparatus; set up of catalyst testing reactor; set up of reactor product analytical systems; and set up of method development for measuring catalyst acidity via FTIR. At the end of this quarter significant progress had been made towards completion of these initiation activities. Several catalyst syntheses have been performed and the catalysts characterized by x-ray diffraction and FTIR. The catalyst testing reactor system is operational. Reactor product analysis system is nearing completion. Initiation of this system was delayed by the unavailability of a Valco valve which has just recently arrived. Set up of the in-situ FTIR cell for catalyst acidity studies has begun. In this report the results of several catalyst syntheses are reported along with characterization results. In particular, impregnation of vanadyl pyrophosphate with potassim nitrate dramatically reduced the number of surface hydroxyl groups. Such groups may be important in the non-selective, total oxidation of hydrocarbons. Also, preliminary experimental results on FTIR spectra of adsorbed pyridine are presented. It is shown that pyridine adsorbed on the catalyst surface can be easily observed by the diffuse reflectance IR technique. We plan to apply this technique to measurement of the acid site strength of surfaces modified with promoters.

  13. Develop data management system for assistance in conducting area of reviews in Texas: Quarterly technical report- 10th quarter, January 1-March 31, 1997

    SciTech Connect

    Wrotenbery, L.; Burgess, D. F.; Weitzel, L.; Williams, D.; Morgan, H.; Matthews, J.

    1997-04-15

    The following technical report provides a detailed status report of the DOE grant project entitled `Develop Data Management System for Assistance in Conducting Area of Reviews (AORS) in Texas.` The grant funding allocated is for the purpose of providing the Railroad Commission of Texas (Commission or RRC) with resources and capabilities to conduct AOR and AOR variance analysis statewide.

  14. BX in-situ oil-shale project. Quarterly technical progress report, June 1, 1981-August 31, 1981

    SciTech Connect

    Dougan, P.M.

    1981-09-20

    June 1, 1981-August 31, 1981 was the third consecutive quarter of superheated steam injection at the BX In Situ Oil Shale Project. Injection was continuous except for the period of July 14th to August 1st when the injection was suspended during the drilling of core hole BX-37. During the quarter, 99,760 barrels of water as superheated steam were injected into Project injection wells at an average well head temperature of 752/sup 0/F and an average wellhead pressure of 1312 PSIG. During the same period, 135,469 barrels of fluid were produced from the Project production wells for a produced to injected fluid ratio of 1.36 to 1.0. Net oil production during the quarter was 38 barrels.

  15. Wetland treatment of oil and gas well wastewaters. Quarterly technical report, November 25, 1992--February 24, 1993

    SciTech Connect

    Kadlec, R.H.; Srinivasan, K.R.

    1993-04-02

    During the first quarter of the above contract, all the elements of Task 1 were completed. The first quarterly report presented an overview of a wetland and its increasing use in industrial wastewater treatment. An idealized, reaction engineering description of wetlands was presented to demonstrate how the various processes that occur in a wetland can be modeled. Previous work on the use of wetlands to remove BOD, TSS, Phosphorus and Nitrogen was reviewed. Recent literature on the application of wetland technology to the treatment of petroleum-related wastewater was critically evaluated and an outline of the research plans for the first year was delineated. Further, our literature search (nominally completed under Task 1) unearthed more recent studies (some unpublished) and a summary was included in the second quarterly report. In the second quarterly report, results of our efforts on the construction of a laboratory-type wetland were also reported. Initial studies on the use of wetland amendments such as modified-clays and algae cells were presented and discussed. Adsorption of heavy metal ions, Cu{sup 2+} and Cr(VI) onto soils drawn from the laboratory-type wetland built as a part of this contract has been undertaken and these results are presented and discussed in this quarterly report. A number of studies on the design and preparation of modified-clays for the adsorption of Cr(VI) and {beta}-naphthoic acid (NA) has been carried out during this quarter and these are also described and discussed in this report. The choice of {beta}-naphthoic acid (NA) as an ionogenic organic compound was made on the basis of a recent personal communication to the Project Director that NA is a major contaminant in many oil and gas well wastewaters.

  16. Development and testing of a high efficiency advanced coal combustor Phase III industrial boiler retrofit. Quarterly technical progress report, July 1, 1995--September 30, 1995 No. 16

    SciTech Connect

    Borio, R.W.

    1995-12-15

    The objective of this project is to retrofit a burner, capable of firing microfine coal, to a standard gas/oil designed industrial boiler to assess the technical and economic viability of displacing premium fuels with microfine coal. This report documents the technical aspects of this project during the sixteenth quarter (July `95 through September `95) of the program. The overall program has consisted of five major tasks: (1) A review of current state-of-the-art coal firing system components. (2) Design and experimental testing of a prototype HEACC (High Efficiency Advanced Coal Combustor) burner. (3) Installation and testing of a prototype HEACC system in a commercial retrofit application. (4) Economics evaluation of the HEACC concept for retrofit applications. (5) Long term demonstration under commercial user demand conditions.

  17. Compatibility of refrigerants and lubricants with motor materials. Quarterly technical progress report, April 1, 1992--June 30, 1992

    SciTech Connect

    Doerr, R.; Kujak, S.

    1992-07-23

    During this last quarter, evaluations were complete on the motor materials after 500-hr exposures to refrigerants CFC-123, HFC-134a and HCFC-22 at 90{degrees}C. Materials were also evaluated after exposure to nitrogen at 127{degrees}C to determine effect of the thermal exposure. Other exposures were started during this quarter with refrigerants HCFC-124, HFC-125, HFC-143a, HFC-32 and HFC-152a. One 500 hr exposure is set up per week and one is analyzed the same week. This will enable Trane to complete the 500 hour exposures by the end of the year.

  18. Evaluation of using cyclocranes to support drilling and production of oil and gas in wetland areas. Fifth quarterly technical progress report, Third quarter, 1993

    SciTech Connect

    Eggington, W.J.

    1993-12-31

    The planned program falls under wetlands area research related to drilling, production, and transportation of oil and gas resources. Specifically the planned program addresses an evaluation of using cyclocraft to transport drill rigs, mud, pipes and other materials and equipment in a cost effective and environmentally safe manner to support oil and gas drilling and production operations in wetland areas. The cyclocraft is a proven hybrid aircraft that utilizes aerostatic and aerodynamic lift. This type of aircraft has considerable payload capacity, VTOL capability, high controllability, low operating cost, low downwash and high safety. The benefits of using a cyclocraft to transport drill rigs and materials over environmentally-sensitive surfaces would be significant. The cyclocraft has considerable cost and operational advantages over the helicopter. In 1992, Task 1, Environmental Considerations, and Task 2, Transport Requirements, were completed. In the first two quarters of 1993, Task 3, Parametric Analysis, Task 4, Preliminary Design, and Task 6, Ground Support, were completed. Individual reports containing results obtained from each of these tasks were submitted to DOE. In addition, through June 30, 1993, a Subscale Test Plan was prepared under Task 5, Subscale Tests, and work was initiated on Task 7, Environmental Impacts, Task 8, Development Plan, Task 9, Operating Costs, and Task 10, Technology Transfer.

  19. Evaluation of using cyclocranes to support drilling and production of oil and gas in wetland areas. Fourth quarterly technical progress report, Second quarter, 1993

    SciTech Connect

    Eggington, W.J.

    1993-09-01

    The planned program falls under wetlands area research related to drilling, production, and transportation of oil and gas resources. Specifically the planned program addresses an evaluation of using cyclocraft to transport drill rigs, mud, pipes and other materials and equipment in a cost effective and environmentally safe manner to support oil and gas drilling and production operations in wetland areas. The cyclocraft is a proven hybrid aircraft that utilizes aerostatic and aerodynamic lift. This type of aircraft has considerable payload capacity, VTOL capability, high controllability, low operating cost, low downwash and high safety. The benefits of using a cyclocraft to transport drill rigs and materials over environmentally-sensitive surfaces would be significant. The cyclocraft has considerable cost and operational advantages over the helicopter. The major activity during the second quarter of 1993 was focussed on completion of Task 4, Preliminary Design. The selected design has been designated H.1 Cyclocraft by MRC. Also during the report period, Task 6, Ground Support, was completed and a report containing the results was submitted to DOE. This task addressed the complete H.1 Cyclocraft system, i.e. it included the need personnel, facilities and equipment to support cyclocraft operations in wetland areas.

  20. Oxidation of coal and coal pyrite mechanisms and influence on surface characteristics. Quarterly technical progress report, December 1, 1993--May 31, 1994

    SciTech Connect

    Doyle, F.M.

    1996-01-01

    The objective of this research is to develop a mechanistic understanding of the oxidation of coal and coal pyrite, and to correlate the intrinsic physical and chemical properties of these minerals, along with changes resulting from oxidation, with those surface properties that influence the behavior in physical cleaning processes. The results will provide fundamental insight into oxidation, in term of the bulk and surface chemistry, the microstructure, and the semiconductor properties of the pyrite. During the fourteenth and fifteenth quarters, flotation tests were done on Upper Freeport coal from the Troutville No. 2 Mine, Clearfield County, Pennsylvania and on coal samples from the Pennsylvania State Coal Bank. The influence of electrode potential on the surface properties of coal pyrite was tested using contact angle measurements on polarized Pittsburgh coal pyrite electrode.

  1. Support of enhanced oil recovery to independent producers in Texas. Quarterly technical progress report, July 1, 1995--September 30, 1995

    SciTech Connect

    Fotouh, K.H.

    1995-09-30

    The main objective of this project is to support independent oil producers in Texas and to improve the productivity of marginal wells utilizing enhanced oil recovery techniques. The main task carried out this quarter was the generation of an electronic data base.

  2. Superior catalysts for selective catalytic reduction of nitric oxide. Quarterly technical progress report, January 1, 1995--March 31, 1995

    SciTech Connect

    Li, W.B.; Yang, R.T.

    1995-12-01

    During this quarter, progress was made on the following tasks: TPD techniques were employed to study the reaction mechanism of the selective catalytic reduction of nitrogen oxide with ammonia over iron oxide pillared clay catalyst; and a sulfur dioxide resistant iron oxide/titanium oxide catalyst was developed.

  3. Improvement of storage, handling, and transportability of fine coal. Quarterly technical progress report No. 4, October 1, 1994--December 31, 1994

    SciTech Connect

    1996-08-20

    The objectives of this project are to demonstrate that: The Mulled Coal process, which has been proven to work on a wide range of wet fine coals at bench scale, will work equally well on a continuous basis, producing consistent quality at a convincing rate of production in a commercial coal preparation plant. The wet product from a fine coal cleaning circuit can be converted to a solid fuel form for ease of handling and cost savings in storage and rail car transportation. A wet fine coal product thus converted to a solid fuel form, can be stored, shipped, and burned with conventional fuel handling, transportation, and combustion systems. During this fourth quarter of the contract period, activities were underway under Tasks 2 and 3. Sufficient characterization of the bench-scale testing and pilot-plant testing results enabled the design and procurement activities to move forward. On that basis, activities in the areas of design and procurement that had been initiated during the previous quarter were conducted and completed.

  4. Investigation of mineral transformations and ash deposition during staged combustion. Quarterly technical progress report, January 1, 1996--March 31, 1996

    SciTech Connect

    Harb, J.N.

    1996-05-01

    Progress during the tenth quarter of a three-year study of ash formation and deposition was made in several areas. One of the key contributions this quarter was the development of an algorithm to distinguish between ash particles that are associated with char particles (included) and ash particles which are excluded. This algorithm was used to determine the extent to which pyrite transformations are influenced by whether the pyrite grains are included or excluded. The results indicate that pyrite oxidation is slower for included pyrite grains. Replicate experiments were also performed for the Pittsburgh No. 8 coal (washed) under both staged and conventional conditions. An objective of these experiments was to validate the effect of staged combustion on the size distribution of ash particles as reported for the previous quarter. Analysis of the new samples and repeat analyses of previous samples showed no significant difference in the ash particle size for samples collected at stoichiometric ratios of 0.75 (before the stage) and 1.04. The number of points in the new analyses was considerably higher than in previous analyses, resulting in greater confidence. The similarity in the ash composition for samples collected under staged and conventional conditions was also verified this quarter with replicate samples and analyses. The net result is that staged combustion does not appear to have a significant impact on either ash size or composition for the Pittsburgh No. 8 coal. Finally, numerical simulations of the temperature distribution in the laboratory combustor were performed and evaluated. Also, a paper documenting the classification algorithm developed last quarter was presented at the March ACS meeting in New Orleans and published in the ACS Division of Fuel Chemistry Preprints.

  5. Utility-Scale Future, Continuum Magazine: Clean Energy Innovation at NREL, Spring 2011, Issue 1 Vol. 1

    SciTech Connect

    Not Available

    2011-08-01

    This quarterly magazine is dedicated to stepping beyond the technical journals to reveal NREL's vital work in a real-world context for our stakeholders. Continuum provides insights into the latest and most impactful clean energy innovations, while spotlighting those talented researchers and unique facilities that make it all happen. This edition focuses on creating a utility-scale future.

  6. CO{sub 2} Huff-n-Puff process in a light oil shallow shelf carbonate reservoir. Quarterly technical progress report, 3rd quarter, 1994

    SciTech Connect

    Wehner, S.; Smith, V.; Cole, R.; Brugman, B.; Vogt, J.

    1994-10-18

    The principal objective of the Central Vacuum Unit (CVU) CO{sub 2} Huff-n-Puff (H-n-P) project is to determine the feasibility and practicality of the technology in a waterflooded shallow shelf carbonate environment. The results of parametric simulation of the CO{sub 2} H-n-P process, coupled with the CVU reservoir characterization components will determine if this process is technically and economically feasible for field implementation. The technology transfer objective of the project is to disseminate the knowledge gained through an innovative plan in support of the Department of Energy`s (DOE) objective of increasing domestic oil production and deferring the abandonment of shallow shelf carbonate (SSC) reservoirs. Texaco Exploration and Production Inc`s. (TEPI) long-term plans are to implement a full-scale miscible CO{sub 2} project in the CVU. However, the current market precludes acceleration of such a capital intensive project. The DOE partnership provides some relief to the associated R and D risks, allowing TEPI to evaluate a proven Gulf-coast sandstone technology in a waterflooded carbonate environment. Technical progress is described on the following studies: Porosity and permeability relationships; Initial water saturation and oil-water contact; Geostatistical realization; and Parametric simulation.

  7. CO{sub 2} Hugg-n-Puff process in a light oil shallow shelf carbonate reservoir. Quarterly technical progress report, 2nd quarter 1996

    SciTech Connect

    1996-07-25

    The principal objective of the Central Vacuum Unit (CVU) CO{sub 2} Huff-n-Puff (H-n-P) project is to determine the feasibility and practicality of the technology in a waterflooded shallow shelf carbonate environment. The results of parametric simulation of the CO{sub 2} H-n-P process, coupled with the CVU reservoir characterization components will determine if this process is technically and economically feasible for field implementation. The technology transfer objective of the project is to disseminate the knowledge gained through an innovative plan in support of the Department of Energy`s (DOE) objective of increasing domestic oil production and deferring the abandonment of shallow shelf carbonate (SSC) reservoirs. Tasks associated with this objective are carried out in what is considered a timely effort for near-term goals.

  8. Development of a $10/kW bipolar separator plate. Technical quarterly progress report, July 1--September 30, 1998

    SciTech Connect

    1998-12-31

    The authors have identified a moldable graphite blend separator plate material, have molded complex shape bipolar separator plates, have tested the molded plate properties and function in single fuel cells, and have designed a conceptual rapid manufacturing line. In this quarter, the project received a three-month interim funding period to continue progress while the proposal is in DOE review. Thus, this fourth quarterly report is submitted in place of the originally scheduled final report for this project. All of the objectives of this project have been accomplished. Specifically, the electrical, chemical, and physical properties of the molded separator plates have met or exceeded the DOE specifications. Performance and endurance tests of the molded plates in single cells have shown comparable performance to the state-of-art machined graphite separator plates. The DOE cost target of $10 per kW appears to be achievable with the low cost composite materials.

  9. Magnetic relaxation - coal swelling, extraction, pore size. Quarterly technical progress report, April 1, 1994--June 31, 1994

    SciTech Connect

    Doetschman, D.C.

    1994-08-01

    Work this quarter involved a CW EPR examination of the density separated fractions of the Lewiston-Stockton Argonne Coal and the initiation of EPR studies to probe molecular motion in coal pores. Eighteen densities between 1.24 g/cm{sup 3} and 1.56 g/cm{sup 3} were separated and combined into seven density ranges. Radicals with a narrow EPR line appear only in the samples with densities above 1.48 g/cm{sup 3}.

  10. Effects of surface chemistry on the porous structure of coal. Quarterly technical progress report, April 1996--June 1996

    SciTech Connect

    Anderson, S.A.; Radovic, L.R.; Hatcher, P.G.

    1996-11-01

    Objective is to use {sup 129}Xe NMR to study the microporous structure of coals. During this quarter, we have: performed a presaturation experiment on Wyodak subbituminous coal, monitored the progress of Xe adsorption in an anthracite, focusing on the changes observed in the external-surface adsorbed gas signal, used an echo sequence to obtain {sup 129}Xe NMR spectra of Blind Canyon hvAb coal, and improved and repeated the successive oxygen adsorption and desorption experiment on a microporous carbon.

  11. Investigation of mineral transformations and ash deposition during staged combustion. Quarterly technical progress report, October 1, 1995--December 31, 1995

    SciTech Connect

    Harb, J.N.

    1996-02-07

    Progress during the ninth quarter of a three-year study of ash formation and deposition was made in several areas. One of the key contributions this quarter was the development of an enhanced method for classification of CCSEM data. This classification algorithm permits grouping and comparison of particles previously labeled as ``unclassifiable.`` A second analytical advancement, also made this quarter, provides more detailed information on the distribution of minerals in the coal and the potential for coalescence. This new multiple analysis technique is also applicable to ash and will permit identification of heterogeneous ash particles. Additional analyses of ash samples were also performed and it was found that the firing of Pittsburgh {number_sign}8 under staged combustion conditions yields an ash with a significantly larger particle size distribution than that obtained under conventional firing conditions, but without a significant change in composition. the size difference was noted previously, but the new classification algorithm allowed a detailed comparison of all composition groups, including unclassifiable particles, in the ashes. A mechanistic explanation for this behavior has been developed and is provided in the report. Finally, a paper documenting the new classification algorithm has been prepared and is scheduled for presentation at the March ACS meeting in New Orleans.

  12. CO{sub 2} Huff-n-Puff process in a light oil shallow shelf carbonate reservoir. Quarterly technical progress report, Fourth quarter 1995

    SciTech Connect

    Wehner, S.; Prieditis, J.

    1996-02-05

    The principle objective of the Central Vacuum Unit (CVU) CO{sub 2} Huff-n-Puff (H-n-P) project is to determine the feasibility and practicality of the technology in a waterflooded shallow shelf carbonate environment. The results of parametric simulation of the CO{sub 2} H-n-P process, coupled with the CVU reservoir characterization components will determine if this process is technically and economically feasible for field implementation. The technology transfer objective of the project is to disseminate the knowledge gained through an innovative plan in support of the Department of Energy`s objective of increasing domestic oil production and deferring the abandonment of shallow shelf carbonate (SSC) reservoirs. Texaco Exploration and Production Inc`s. (TEPI) mid-term plans are to implement a full-scale miscible CO{sub 2} project in the CVU. TEPI has concluded all of the Tasks associated with the First Budget Period. The DOE approved the TEPI continuation application. Budget Period No. 2 is now in progress. Initial injection of CO{sub 2} began in November, and after a short shut-in period for the soak, the well was returned to production in late December, 1995.

  13. Development of vanadium-phosphate catalysts for methanol production by selective oxidation of methane. Quarterly technical progress report 3, April--June 1993

    SciTech Connect

    McCormick, R.L.; Jha, M.C.; Streuber, R.D.

    1993-08-20

    This document is the third quarterly technical progress report under Contract No. AC22-92PC92110, ``Development of Vanadium-Phosphate Catalysts for Methanol Production by Selective Oxidation of Methane.`` During this quarter, we have continued to develop methods for catalyst activation by investigating activation in wet gas environments. This procedure leads to the formation of highly crystalline (VO){sub 2}P{sub 2}O{sub 7}, while activation under identical conditions, but with no moisture, leads to a poorly crystalline sample. Published data indicate that the highly crystalline form is representative of commercial butane oxidation catalysts. The main focus of our work during this quarter has been in the area of catalyst testing in the microreactor system. In order to confirm that our microreactor system was providing reliable data, we tested a V{sub 2}O{sub 5}/SiO{sub 2} catalyst at atmospheric pressure and temperatures from 500 to 600{degree}C using 90 to 95 percent CH{sub 4}/O{sub 2}. Several studies of methane oxidation using this catalyst have been published with reasonably good agreement between different research groups. We were not able to reproduce the literature data using steel reactors. However, when the steel reactor was lined with quartz and the postcatalyst reactor volume was minimized by packing with quartz chips, we obtained results which agree closely with those previously published. Using the same quartz reactor and test conditions, we also tested a highly crystalline (wet activated) VPO catalyst.

  14. A study of multi-stage/multi-function column for fine particle separation. Quarterly technical progress report, July 8, 1994--September 30, 1994

    SciTech Connect

    Chiang, Shiao-Hung

    1995-01-20

    The overall objective of the proposed research program is to explore the potential application of a new invention involving a multi-stage column equipped with vortex-inducing loop-flow contactors (hereafter referred to as the multi-stage flotation column) for fine coal cleaning and other solid-solid separations. The research work will identify the design parameters and their effect on the performance of the separation process. The results of this research will provide a basis for further development of the technology. In the past three months, the efforts focused on project planning and design of test equipment. A description of technical progress is presented.

  15. Increasing heavy oil reserves in the Wilmington oil field through advanced reservoir characterization and thermal production technologies. Quarterly technical progress report, March 30, 1995--June 30, 1995

    SciTech Connect

    Clarke, D.; Ershaghi, I.; Davies, D.; Phillips, C.; Mondragon, J.

    1995-07-28

    This is the first quarterly technical progress report for the project. Although the contract was awarded on March 30, 1995 and Pre-Award Approval was given on January 26, 1995, the partners of this project initiated work on October 1, 1994. As such, this progress report summarizes the work performed from project inception. The production and injection data, reservoir engineering data, and digitized and normalized log data were all completed sufficiently by the end of the quarter to start work on the basic reservoir engineering and geologic stochastic models. Basic reservoir engineering analysis began June 1 and will continue to March, 1996. Design work for the 5 observation/core holes, oil finger printing of the cored oil sands, and tracers surveys began in January, 1995. The wells will be drilled from July--August, 1995 and tracer injection work is projected to start in October, 1995. A preliminary deterministic 3-D geologic model was completed in June which is sufficient to start work on the stochastic 3-D geologic model. The four proposed horizontal wells (two injectors and two producers) have been designed, equipment has been ordered, and the wells will be drilled from mid-August through September. Four existing steam injection wells were converted to hot water injection in March, 1995. Initial rates were kept low to minimize operational problems. Injection rates will be increased significantly in July.

  16. Government Information Quarterly. Volume 7, no. 2: National Aeronautics and Space Administration Scientific and Technical Information Programs. Special issue

    NASA Technical Reports Server (NTRS)

    Hernon, Peter (Editor); Mcclure, Charles R. (Editor); Pinelli, Thomas E. (Editor)

    1990-01-01

    NASA scientific and technical information (STI) programs are discussed. Topics include management of information in a research and development agency, the new space and Earth science information systems at NASA's archive, scientific and technical information management, and technology transfer of NASA aerospace technology to other industries.

  17. EDIN-USVI Clean Energy Quarterly: Volume 1 November 2010, Energy Development in Island Nations, U.S. Virgin Islands (Newsletter)

    SciTech Connect

    Not Available

    2010-11-01

    This quarterly newsletter provides timely news and information about the plans and progress of the Energy Development in Island Nations U.S. Virgin Islands pilot project, including significant events and milestones, work undertaken by each of the five working groups, and EDIN-sponsored renewable energy and energy efficiency projects.

  18. EDIN-USVI Clean Energy Quarterly: Volume 1, Issue 2, March 2011, Energy Development in Island Nations, U.S. Virgin Islands (Newsletter)

    SciTech Connect

    Not Available

    2011-03-01

    This quarterly newsletter provides timely news and information about the plans and progress of the Energy Development in Island Nations U.S. Virgin Islands pilot project, including significant events and milestones, work undertaken by each of the five working groups, and project-related renewable energy and energy efficiency projects.

  19. Bench-scale testing of on-line control of column flotation using a novel analyzer. Second quarterly technical progress report, January 1, 1993--March 31, 1993

    SciTech Connect

    Not Available

    1993-04-16

    This document contains the second quarterly technical progress report for PTI`s Bench-Scale Testing Project of a circuit integrating PTI`s KEN-FLOTE{trademark} Column Flotation Technology and PTI`s On-Line Quality Monitor and Control System. The twelve-month project involves installation and testing of a 200--300 lb/hr. bench-scale testing circuit at PETC`s Coal Preparation Process Research Facility (CPPRF) for two bituminous coals (Upper Freeport and Pittsburgh No. 8 Seam Raw Coals). The project schedule timeline by task series for the twelve month project, as it was laid out in the initial Project Work Plan. At the present time, all tasks are progressing according to schedule with the exception of the Task 800 Circuit Testing and Sample Prep and Task 1000 Circuit Decommissioning, which have slipped approximately five weeks due to delays incurred within in the project.

  20. Upgrading mild gasification liquids to produce electrode binder pitch. [Quarterly] technical report, December 1, 1993--February 28, 1994

    SciTech Connect

    Knight, R.A.

    1994-06-01

    The objective of this program is to investigate the production of electrode binder pitch, valued at $250--$300/ton, from mild gasification liquids. The IGT MILDGAS process pyrolyzes coal at 1000{degrees}--1500{degrees}F and, with Illinois coal, the 750{degrees}F+ distillation residue (crude pitch) comprises 40--70% of the MILDGAS liquids, representing up to 20 wt% of maf feed coal. The largest market for pitch made from coal liquids is the aluminum industry, which uses it to make carbon anodes for electrolytic furnaces. In this project, crude MILDGAS pitch is being modified by a flash thermocracking technique to achieve specifications typical of a binder pitch. Last year, a pitch thermocracking unit was constructed for operation at 1200{degrees}--1600{degrees}F. Reactor design features and process conditions are being examined to optimize the properties of the finished pitch. In the current year, improvements to the thermocracker are being made for better gas and pitch flow control, continuous electronic monitoring of feed rate and pressures, and improvements to allow longer tests. Tests are being conducted under both inert and reducing gases. During the current quarter, equipment modifications, calibrations, and shakedown were completed, and thermocracking tests were resumed. One test was completed at 1600{degrees}F in N{sub 2} with a pitch rate of 11 g/min. Data from this and following tests will be presented in the next quarterly report. During the next quarter, thermocracking tests will be completed and selected products (pitch and/or pitch coke) will be submitted to an aluminum company testing lab for production and evaluation of test electrodes.

  1. Development of molten carbonate fuel cell power plant. Quarterly technical progress report, February 1-April 30, 1980

    SciTech Connect

    Peterson, J. R.

    1980-01-01

    Work has been initiated during this first quarter under all four program tasks and by all major participants as described. Task 1.0 activity (establish power plant reference design) concentrated upon definition of user requirements and establishment of power plant subsystem alternatives and characteristics. Task 2.0 work (stack and cell design development and verification) was initiated with a heavy emphasis upon test facilities preparation. A total of 27 laboratory cells were operated during this reporting period and a total of nine cells continued on test at the end of the quarter. Investigation of alternative anode and cathode materials proceeded; a dual-porosity anode was fabricated and tested. Over 10,000 endurance hours on a state-of-the-art cell carried-over from a previous program has been achieved and 1500 hours endurance has been obtained with sheet metal cells. Results presented for electrolyte structure development include comparative data for spray-dried and modified aqueous slurry process powders. Shake-down tests with a rotating disc electrode apparatus for fundamental measurements are described. Concept designs for both prototype and subscale stacks have been identified. Task 3.0 effort (development capability for full-scale stack tests) included preparation of an overall test plan to commercialization for molten carbonate fuel cells and of a functional specification for the tenth-scale stack test facility; drafts of both documents were completed for internal review. Cost-effective manufacturing assessment of available designs and processes was initiated. Task 4.0 work (develop capabilities for operation of stacks on coal-derived gas) included gathering of available contaminants concentration and effects information and preparation of initial projections of contaminant ranges and concentrations. Accomplishments to date and activities planned for the next quarter are described.

  2. Bench-scale testing of on-line control of column flotation using a novel analyzer. Third quarterly technical progress report, April 1, 1993--June 30, 1993

    SciTech Connect

    Not Available

    1993-08-24

    This document contains the third quarterly technical progress report for PTI`s Bench-Scale Testing Project of a circuit integrating PTI`s KEN-FLOTETM Column Flotation Technology and PTI`s On-Line Quality Monitor and Control System. The twelve-month project involves installation and testing of a 200--300 lb/hr. bench-scale flotation circuit at PETC`s Coal Preparation Process Research Facility (CPPRF) for two bituminous coals (Upper Freeport and Pittsburgh No. 8 Seam Raw Coals). Figure 1 contains the project plan, as well as the approach to completing the major tasks within the twelve-month project schedule. The project is broken down into three phases, which include: Phase I -- Preparation: The preparation phase was performed principally at PTI`s Calumet offices from October through December, 1992. It involved building of the equipment and circuitry, as well as some preliminary design and equipment testing; Phase II -- ET Circuit Installation and Testing: This installation and testing phase of the project was performed at PETC`s CPPRF from January through June, 1993, and was the major focus of the project. It involved testing of the continuous 200--300 lb/hr. circuit; and Phase III -- Project Finalization: The project finalization phase is occurring from July through September, 1993, at PTI`s Calumet offices and involves finalizing analytical work and data evaluation, as well as final project reporting. This Third Quarterly Technical Progress Report principally summarizes the results from the benchscale testing with the second coal (Pittsburgh No. 8 Seam Coal), which occurred in April through June, 1993. It also contains preliminary economic evaluations that will go into the Final Report, as well as the plan for the final reporting task.

  3. Bioconversion of coal derived synthesis gas to liquid fuels. Quarterly technical progress report, October 1, 1994--December 27, 1994

    SciTech Connect

    Jain, M.K.; Worden, R.M.; Grethlein, A.

    1995-01-16

    The overall objective of the project is to develop an integrated two-stage fermentation process for conversion of coal-derived synthesis gas to a mixture of alcohols. This is achieved in two steps. In the first step, Butyribacterium methylotrophicum converts carbon monoxide (CO) to butyric and acetic acids. Subsequent fermentation of the acids by Clostridium acetobutylicum leads to the production of butanol and ethanol. The tasks for this quarter were: (1) Development/isolation of superior strains for fermentation of syngas; (2) Evaluation of bioreactor configuration for improved mass transfer of syngas, specifically gas lift; (3) Pervaporation for recovery of solvents; (4) Write and submit final report.

  4. Development and testing of a high efficiency advanced coal combustor phase III industrial boiler retrofit. Quarterly technical progress report No. 9, 1 October 1993--31 December 1993

    SciTech Connect

    Jennings, P.; Borio, R.; McGowan, J.G.

    1994-03-01

    This report documents the technical aspects of this project during the ninth quarter of the program. During this quarter, the natural gas baseline testing at the Penn State demonstration boiler was completed, results were analyzed and are presented here. The burner operates in a stable manner over an 8/1 turndown, however due to baghouse temperature limitations (300{degrees}F for acid dewpoint), the burner is not operated for long periods of time below 75% load. Boiler efficiency averaged 83.1% at the 100 percent load rate while increasing to 83.7% at 75% load. NO{sub x} emissions ranged from a low of 0.17 Lbs/MBtu to a high of 0.24 Lbs/MBtu. After the baseline natural gas testing was completed, work continued on hardware optimization and testing with the goal of increasing carbon conversion efficiency on 100% coal firing from {approx}95% to 98%. Several coal handling and feeding problems were encountered during this quarter and no long term testing was conducted. While resolving these problems several shorter term (less than 6 hour) tests were conducted. These included, 100% coal firing tests, 100% natural gas firing tests, testing of air sparges on coal to simulate more primary air and a series of cofiring tests. For 100% coal firing, the carbon conversion efficiency (CCE) obtained this quarter did not exceed the 95-96% barrier previously reached. NO{sub x} emissions on coal only ranged from {approx} 0.42 to {approx} 0.78 Lbs/MBtu. The burner has not been optimized for low NO{sub x} yet, however, due to the short furnace residence time, meeting the goals of 98% CCE and <0.6 Lbs/MBtu NO{sub x} simultaneously will be difficult. Testing on 100% natural gas in the boiler after coal firing indicated no changes in efficiency due to firing in a `dirty` boiler. The co-firing tests showed that increased levels of natural gas firing proportionately decreased NO{sub x}, SO{sub 2}, and CO.

  5. Advanced emissions control development program. Quarterly technical progress report {number_sign}8, July 1--September 30, 1996

    SciTech Connect

    Evans, A.P.

    1996-12-31

    The objective of this project is to develop practical strategies and systems for the simultaneous control of SO{sub 2}, NO{sub x}, particulate matter, and air toxics emissions from coal-fired boilers in such a way as to keep coal economically and environmentally competitive as a utility boiler fuel. Of particular interest is the control of air toxics emissions through the cost-effective use of conventional flue gas clean-up equipment such as electrostatic precipitators (ESP`s), fabric filters (baghouses), and SO{sub 2} removal systems such as wet scrubbers and various clean coal technologies. This objective will be achieved through extensive development testing in Babcock and Wilcox`s state-of-the-art, 10 MW{sub e} equivalent, Clean Environment Development Facility (CEDF). The project has extended the capabilities of the CEDF to facilitate air toxics emissions control development work on backend flue gas cleanup equipment. Specifically, an ESP, a baghouse, and a wet scrubber for SO{sub 2} (and air toxics) control were added--all designed to yield air toxics emissions data under controlled conditions, and with proven predictability to commercial systems. The specific objectives of the project are to: measure and understand production and partitioning of air toxics species in coal-fired power plant systems; optimize the air toxics removal performance of conventional flue gas cleanup systems; quantify the impacts of coal cleaning on air toxics emissions; identify and/or develop advanced air toxics emissions control concepts; develop and validate air toxics emissions measurement and monitoring techniques; and establish an air toxics data library to facilitate studies of the impacts of coal selection, coal cleaning, and emissions control strategies on the emissions of coal-fired power plants.

  6. Recovery and utilization of gypsum and limestone from scrubber sludge. [Quarterly] technical report, March 1, 1993--May 31, 1993

    SciTech Connect

    Kawatra, S.K.; Eisele, T.C.

    1993-09-01

    Wet flue-gas desulfurization units in coal-fired power plants produce a large amount of sludge which must be disposed of, and which is currently landfilled in most cases. Increasing landfill costs are gradually forcing utilities to find other alternatives. In principle, this sludge can be used to make gypsum (CaSO{sub 4}-2H{sub 2}O) for products such as plaster-of-Paris and wallboard, but only if impurities such as unreacted limestone and soluble salts are removed, and the calcium sulfite (CaSO{sub 3}) is oxidized to calcium sulfate (CaSO{sub 4}). This project is investigating methods for removing the impurities from the sludge so that high-quality, salable gypsum products can be made. Work done in the previous quarter concentrated on developing a low-cost froth flotation process that could remove limestone, unburned carbon, and related contaminants from the sludge while recovering the bulk of the calcium sulfite and gypsum. In the current quarter, experiments to remove impurities from the sludge using a water-only cyclone were conducted. The cyclone has been found to be effective for removing the coarser limestone impurities, as well as removing contaminants such as fine gravel and grinding-ball chips. These results show that the cyclone will be very complementary with froth flotation, which mainly removes the very fine impurities.

  7. Oxidation of phenolics in supercritical water. Combined quarterly technical progress report, December 1, 1995--May 31, 1996

    SciTech Connect

    1996-11-01

    Over the past two quarters, our work has focused on three main areas. The first area of interest involved a reexamination of the rate laws that were formed in past quarters. A possible error was discovered for the analytical methods used in the o-cresol oxidation study and the data were corrected, yielding a new rate equation. The data for hydroxybenzaldehydes were studied again, this time as a system of parallel oxidation and thermolysis reactions. The second area in which progress was made was the study of the thermolysis of nitrophenols and dihydroxybenzenes in supercritical water. These investigations were needed to determine the effect that pyrolysis or hydrolysis had on our previous supercritical water oxidation experiments. Thirdly, we have continued to investigate the use of molecular orbital theory in the determination reactivity indices. A reactivity index, such as the enthalpy of formation, may be used in a structure-reactivity relationship to summarize the kinetics for the oxidation of phenolics in supercritical water. Progress in each of these areas is summarized.

  8. Advanced Emissions Control Development Program. Quarterly Technical Progress Report {number_sign}7 for the period: April 1 to June 30, 1996

    SciTech Connect

    Evans, A.P.

    1996-12-31

    Babcock {ampersand} Wilcox (B{ampersand}W) is conducting a five-year project aimed at the development of practical, cost- effective strategies for reducing the emissions of hazardous air pollutants (commonly called air toxics) from coal-fired electric utility plants. The need for air toxic emissions controls may arise as the U. S. Environmental Protection Agency proceeds with implementation of Title III of the Clean Air Act Amendment (CAAA) of 1990. Data generated during the program will provide utilities with the technical and economic information necessary to reliably evaluate various air toxics emissions compliance options such as fuel switching, coal cleaning, and flue gas treatment. The development work is being carried out using B{ampersand}W`s new Clean Environment Development Facility (CEDF) wherein air toxics emissions control strategies can be developed under controlled conditions, and with proven predictability to commercial systems. Tests conducted in the CEDF provide high quality, repeatable, comparable data over a wide range of coal properties, operating conditions, and emissions control systems. Development work to date has concentrated on the capture of mercury, other trace metals, fine particulate, and the inorganic species hydrogen chloride and hydrogen fluoride.

  9. Advanced sulfur control concepts in hot-gas desulfurization technology. Quarterly technical progress report, July--September 1995

    SciTech Connect

    Harrison, D.P.

    1995-10-01

    Both the Antek total sulfur analyzer and the modifications to the Shimadzu GC-14A gas chromatograph to be used for analysis for SO{sub 2} and H{sub 2}S were delivered during the quarter. Problems were faced during the installation and calibration phases of both instruments. By the end of the quarter we believe that the GC problems have been solved, but problems remain with the Antek analyzer. It appears that too much sulfur (as SO{sub 2}) reaches the UV detector and causes it to become saturated. This shows up as a maximum in the instrument calibration curve. At 200 psia, the capillary flow restrictor allows a total flow rate of about 180 sccm, and the maximum occurs at about 1 % H{sub 2}S in the calibration gas. Reducing the pressure so that the total flow is reduced to about 25 sccm shifts the calibration curve maximum to about 5.7% H{sub 2}S. It appears that we must reduce the total flow rate to the detector or provide additional dilution. This may be accomplished by increasing the resistance of the capillary restrictor, by diverting a portion of the flow leaving the pyrotube to vent, or adding an inert such as N{sub 2} to the gases exiting the pyrotube. We are in contact with Antek representatives about the problem. Both the atmospheric pressure and high pressure electrobalances were used during the quarter to study the regeneration of FeS in atmospheres of O{sub 2}/N{sub 2} or H{sub 2}O/N{sub 2}. In the atmospheric pressure unit the effects of temperature (600 - 800{degrees}C), flow rate (130 - 500 sccm), and reactive gas mol fraction (0.005 to 0.03 O{sub 2} and 0.1 to 0.5 H{sub 2}O) are being studied. Regeneration tests completed to date in the high pressure unit have utilized only O{sub 2}/N. and the parameters studied include temperature (600 - 800{degrees}C), flow rate (500 - 1000 sccm), pressure (1 - 15 atm) ad O{sub 2} mol fraction (0.005 - 0.03).

  10. Superior catalysts for selective catalytic reduction of nitric oxide. Quarterly technical progress report, October 1, 1994--December 31, 1994

    SciTech Connect

    Li, W.B.; Yang, R.T.

    1994-12-31

    During the past quarter, progress was made in three tasks. The poisoning effects of alkali metals (as Na{sub 2}O, K{sub 2}0 and Cs{sub 2}O) on iron oxide pillared clay (Fe-Bentonite) catalyst for selective catalytic reduction (SCR) of NO with NH{sub 3} were investigated. The effects of sulfur dioxide and water vapor on the performance of the high activity catalyst, that is, Ce-doped Fe-Bentonite pillared clay (Ce-Fe-Bentonite) were examined. In addition, an iron ion-exchanged titania pillared clay (Ti-PILC) was prepared and its catalytic activity for the SCR of NO with NH{sub 3} was studied, which showed a high activity and a high S0{sub 2} and H{sub 2}0 resistance at high temperatures (i.e., above 400{degree}C).

  11. Field study of disposed wastes from advanced coal processes. Quarterly technical progress report, October--December 1992

    SciTech Connect

    Not Available

    1992-12-31

    The specific objectives for the reporting period of October, 1992 to December, 1992 were as follows: (1) Finish analyzing leachates from the third annual core samples from the Ohio site, collected in August 1992; (2) Collect and analyze the sixth quarterly water samples from the first Illinois test case in August, 1992. Make field measurements and collect data from the data logger; (3) Begin construction of the second Illinois test case; (4) Continue production of a video presentation on the project; (5) Load all remaining EERC data on the Colorado and Ohio sites into the project database; (6) Finalize plans with METC for continued monitoring at the Colorado and Ohio sites beyond the initial three year period, and (7) Submit and the Final Case Report on the Colorado site to the DOE and EPRI.

  12. Photovoltaic mechanisms in polycrystalline thin film silicon solar cells. Quarterly technical progress report No. 1, July 30-October 31, 1980

    SciTech Connect

    Sopori, B.

    1980-07-30

    Major accomplishments during the first quarter of the contract period are reported. Small area diode fabrication and analysis has been continued. This technique has further been applied to many RTR ribbons. An optical technique for determination of crystallite orientations has been placed in operation. This technique has many distinct advantages. These are: (1) rapid; (2) can be set-up very inexpensively; (3) well suited for polycrystalline substrates of small grain size; and (4) can easily characterize twins. Accuracies obtained with this technique are about the same as that of the Laue technique. A technique to qualitatively evaluate grain boundary activity in unprocessed substrates has been used and valuable results obtained. Further analysis is being done to use this technique for quantitative evaluation. A major study of G.B. orientation effects is underway. Initial results on RTR ribbons have shown a good correlation of G.B. barrier height with misorientation (tilt boundaries).

  13. Vapor pressures and heats of vaporization of primary coal tars. Quarterly technical progress report, July 1 - September 31, 1996

    SciTech Connect

    Suuberg, E.M.; Oja, V.; Lilly, W.D.

    1996-12-31

    The vapor pressure correlations that exist at present for coal tars are very crude and they are not considered reliable to even an order of magnitude. This project seeks to address this important gap in the near term by direct measurement of vapor pressures of coal tar fractions, by application of well-established techniques and modifications thereof. The principal objectives of the program are to: (1) obtain data on the vapor pressures and heats of vaporization of tars from a range of ranks of coal; (2) develop correlations based on a minimum set of conveniently measurable characteristics of the tars; and (3) develop equipment that would allow performing such measurements in a reliable, straightforward fashion. During this quarter we have extended the work on measurements of vapor pressures of coal tars, using the continuous Knudsen effusion technique. These results need further analysis and therefore in this report we describe only the general idea behind the technique, and also show some typical results.

  14. An advanced control system for fine coal flotation. Fifth quarterly technical progress report, October 1, 1996--December 31, 1996

    SciTech Connect

    Adel, G.T.; Luttrell, G.H.

    1997-03-04

    A model-based flotation control scheme is being implemented to achieve optimal performance in the handling and treatment of fine coal. The control scheme monitors flotation performance through on- line analysis of ash content. Then, based on the economic and metallurgical performance of the circuit, variables such as reagent dosage, pulp density and pulp level are adjusted using model-base control algorithms to compensate for feed variations and other process disturbances. Recent developments in sensor technology are being applied for on-line determination of slurry ash content. During the fifth quarter of this project, all work was on hold pending the final novation of the contract to Virginia Polytechnic Institute and State University.

  15. Removal of CO{sub 2} from flue gases by algae. [Quarterly] technical report, March 1, 1993--May 31, 1993

    SciTech Connect

    Akin, C.; Pradhan, S.

    1993-09-01

    The objective of this research program is to determine the feasibility of the alga Botryococcus braunii as a biocatalyst for the photosynthetic conversion of flue gas CO{sub 2} to hydrocarbons. The research program involves the determination of the biocatalytic characteristics of free and immobilized cultures of Botryococcus braunii in bench-scale studies, and the feasibility study and economic analysis of the Botryococcus braunii culture systems for the conversion of flue gas CO{sub 2} to hydrocarbons. The objective of the third quarter of this research program was to determine the growth and hydrogen formation characteristics of free and immobilized cells of Botryococcus braunii in bench-scale photobioreactors. Raceway and inclined surface type bioreactors were used for free cell and immobilized cell studies respectively. The free cell studies with air and CO{sub 2} enriched air [10% (v/v) CO{sub 2} in air] in media with and without NaHCO{sub 3} were conducted.

  16. Integration of advanced geoscience and engineering techniques to quantify interwell heterogeneity. Quarterly technical report, January 1, 1996--March 31, 1996

    SciTech Connect

    Buckley, J.S.; Ouenes, A.

    1996-06-01

    The objective of this project is to integrate advanced geoscience and reservoir engineering concepts with the goal of quantifying the dynamics of fluid-rock and fluid-fluid interactions as they relate to reservoir architecture and lithologic characterization. This interdisciplinary effort will integrate geological and geophysical data with engineering and petrophysical results through reservoir simulation. The essence of the work completed in the first quarter of 1996 is summarized in the following three statements: automatic log digitizing software is superior to hand digitizing; laboratory wettability tests suggest that the reservoir is mixed-wet and results of the non-reactive tracer test were used to revise the mechanics of the wettability test design to include tracer injection below a packer.

  17. Assistance to the states with risk based data management. Quarterly technical progress report, April 1--June 30, 1995

    SciTech Connect

    Paque, M.J.

    1995-07-28

    The Tasks of this project are to: (1) complete implementation of a Risk Based Data Management System (RBDMS) in the States of Alaska, Mississippi, Montana, Nebraska; and (2) conduct Area of Review (AOR) Workshops in the states of California, Oklahoma, Kansas, and Texas. The RBDMS was designed to be a comprehensive database with the ability to expand into multiple areas, including oil and gas production. The database includes comprehensive well information for both producing and injection wells. It includes automated features for performing functions redated to AOR analyses, environmental risk analyses, well evaluation, permit evaluation, compliance monitoring, operator bonding assessments, operational monitoring and tracking, and more. This quarterly report describes the status of the development of the RBDMS project in both stated tasks and proposes further steps in its implementation.

  18. Fine particle clay catalysts for coal liquefaction. Quarterly technical progress report, February 9, 1993--May 8, 1993

    SciTech Connect

    Olson, E.S.

    1995-10-01

    An investigation of new methods for the production and utilization of tetralin-soluble iron oxometallate precursors for coal liquefaction catalysts was continued in this quarter. Further descriptions of the catalytic activities of the sulfided forms were obtained. The hydrogenation activities of catalysts derived from iron oxotitanate and cobalt oxoaluminate were investigated using pyrene as a the test compound, and results were compared with thermal reactions. The hydrogenation activity of iron oxotitanate was superior to other catalysts including iron oxoaluminate. The hydrogenation activity of cobalt oxoaluminate was similar to that of iron oxoaluminate reported in previous quarterly report. The liquefaction of Wyodak subbituminous coal was investigated using in situ sulfided iron oxotitanate catalyst. In order to improve the usefulness of iron oxoaluminate as a liquefaction catalyst, iron oxoaluminate was supported on acid-treated montmorillonite (K-10). Supporting the iron oxoaluminate on an acidic support significantly improved the hydrogenation activity of iron oxoaluminate. The hydrocracking activity was increased by a large factor. Thus the aluminate and titanate structures surrounding the pyrrhotite that forms during sulfidation have a beneficial effect in preventing deactivation of the iron sites, and the presence of the acidic sites in the clay results in effective catalytic synergism between catalyst and support. These clay-supported iron oxometallates are highly promising catalysts for coal liquefaction. Iron oxyhydroxide and triiron supported on acid-treated montmorillonite (K-10) were tested for the liquefaction of ion-exchanged Wyodak (IEW) to minimize effects of the coal mineral matter. Both sulfided catalysts gave very high conversions of coal to THF-soluble and heptane-soluble (oils) products.

  19. Fine particle clay catalysts for coal liquefaction. Quarterly technical progress report, November 9, 1992--February 8, 1993

    SciTech Connect

    Olson, E.S.

    1995-10-01

    The mixed iron/alumina pillared clay catalysts and clay-supported iron catalysts have been shown in previous reports of this project to significantly improve yields of heptane-soluble products obtained in the liquefaction of both as received and acid-exchanged Wyodak subbituminous coal and Blind Canyon bituminous coal. In this quarter, the soluble product (LSW) obtained from the noncatalytic low-severity liquefaction of Wyodak coal was used as a feed to determine the activity of iron based catalysts for the hydrogenation and depolymerization steps. Comparison data for liquefaction of the soluble LSW with other catalysts were desired, and these data were obtained for a dispersed form of iron sulfide, prepared via iron hydroxyoxide (PETC method). The iron oxyhydroxide catalyst was directly precipitated on LSW product using either water or ethanol as the solvent. An insight into the functioning of the mixed iron/alumina pillared clay in coal liquefaction was investigated by preparing and studying an iron oxoaluminate structure. An investigation of new methods for the production of tetralin soluble iron oxometallate catalysts and the determination of their catalytic activities was continued in this quarter. The hydrogenation activity of iron oxoaluminate was investigated using pyrene and 1-methylnaphthalene as the test compounds, and results were compared with thermal reactions. In order to determine the loss of activity, recovered catalyst was recycled a second time for the hydrotreating of pyrene. Reaction of 1-methylnaphthalene with iron oxoaluminate also gave very high conversion to 1- and 5-methyltetralins and small amount of 2- and 6-methyltetralins. Liquefaction of Wyodak subbituminous and Blind Canyon bituminous coal was investigated using an in situ sulfided soluble iron oxoaluminate catalyst.

  20. Nonequilibrium sulfur capture and retention in an air cooled slagging coal combustor. Quarterly technical progress report, 1996

    SciTech Connect

    Zauderer, B.

    1996-11-01

    The objective of this 24 month project is to determine the degree of sulfur retention in slag in a full scale cyclone coal combustor with sulfur capture by calcium oxide sorbent injection into the combustor. This sulfur capture process consists of two steps: Capture of sulfur with calcined calcium oxide followed by impact of the reacted sulfur-calcium particles on the liquid slag lining the combustor. The sulfur bearing slag must be removed within several minutes from the combustor to prevent re-evolution of the sulfur from the slag. To accomplish this requires slag mass flow rates in the range of several 100 lb/hr. To study this two step process in the combustor, two groups of tests are being implemented. In the first group, calcium sulfate in the form of gypsum, or plaster of Paris, was injected in the combustor to determine sulfur evolution from slag. In the second group, the entire process is tested with limestone and/or calcium hydrate injected into the combustor. This entire effort consists of a series of up to 16 parametric tests in a 20 MMtu/hr slagging, air cooled, cyclone combustor. During the present quarterly reporting period ending September 30,1996, three tests in this project were implemented, bringing the total tests to 5. In addition, a total of 10 test days were completed during this quarter on the parallel project that utilizes the same 20 MMtu/hr combustor. The results of that project, especially those related to improved slagging performance, have a direct bearing on this project in assuring proper operation at the high slag flow rates that may be necessary to achieve high sulfur retention in slag.

  1. Microbial strain improvement for organosulfur removal from coal. [Quarterly] technical report, March 1, 1993--May 31, 1993

    SciTech Connect

    Kilbane, J.J. II

    1993-09-01

    IGT has developed a microbial culture Rhodococcus rhodochrous, designated as IGTS8, that is of specifically cleaving carbon-sulfur bonds in a range of organosulfur model compounds and is capable of removing organic sulfur from coal and petroleum without significantly sacrificing the calorific value of the fuel. Although IGTS8 possesses the ability to specifically remove organic sulfur from coal, a major research need is to develop improved strains of microorganisms that possess higher levels of desulfurization activity and therefore permit favorable biodesulfurization process conditions. During the past quarter, promoter probe vectors thought to possess promoter inserts were isolated. Two new promoter probe vectors were constructed: pRCAT2; which is pRAT1 (second quarterly report) with the BamHI site removed, and pRCAT3; which is pRCAT2 with a synthetic oligonucleotide inserted at the HindIII site that will allow a wider range of restriction fragments to be examined for promoter activity including the fragments from the twenty mutants isolated from the Rhodococcus strains exhibiting increased resistance to chloramphenicol. Sequence analysis of six of these mutants has been initiated, computer comparisons made, and base change confirmation is in progress. As research to isolate strong Rhodococcus promoters is the goal, the promoter for the 16S ribosomal RNA structural gene is a good candidate for a strong promoter based on analyses of the 16S RNA gene in other species. Since the sequence of the 16S RNA gene is well conserved among species, straightforward techniques are available to isolate the promoter and such efforts are in progress.

  2. Synthesis of acrylates and methacrlyates from coal-derived syngas. Quarterly technical progress report, January 1, 1995--March 31, 1995

    SciTech Connect

    Tischer, R.E.; Spivey, J.J.

    1995-08-01

    The objective Task 1, Synthesis of Propionates, is to develop the technology for the synthesis of low-cost propionates. These propionates are the basic feedstock for the subsequent reaction with formaldehyde to produce the target molecule, methyl methacrylate (MMA). Eastman has explored several possible routes to the propionates and has concluded that the most promising is the synthesis of propionic anhydride from the reaction of propionic acid from and ethylene (and also hydrogen in some cases). The main advantage of the anhydride over the acid is that its subsequent reaction with formaldehyde does not produce water, which can lead to undesired byproducts. Bechtel is carrying out a cost analysis of the Eastman route to the anhydride to determine if it is potentially competitive with commercially practiced routes to the same molecule. The answer is expected next quarter. The objective Task 2, Condensation Catalysis to develop catalysts for the condensation of the propionate (propionic anhydride is our target molecule) with formaldehyde. This reaction produces methacrylic acid (MAA), which would then be reacted with methanol to produce MMA in the slurry reactor. We have synthesized a wide range of catalysts and the results show that there is substantial byproduct formation, including 3-pentanone and some propionic acid. Our results show the highest yields of MAA using an alkalized alumina (1%Na/{sub y}-AI{sub 2}O{sub 3}). Although the condensation of propionic acid with formaldehyde is well studied in the literature, little is reported on the condensation of the anhydride. Although it is likely that the same general types of acid/base catalysts that promote the acid condensation will also promote that of the anhydride, the strength and balance of the acid and base sites is likely to be different. We plan to explore the relationship of the catalyst properties and MMA yields using the Altamira system, due to be delivered this next quarter.

  3. Development and Evaluation of an Experimental Curriculum for the New Quincy (Mass). Vocational-Technical School. Sixth Quarterly Technical Report, the Development of Learning Units.

    ERIC Educational Resources Information Center

    Morrison, Edward J.; Lecznar, William B.

    Technical activity from July 1 through September 30, 1966 was concentrated on (1) completion of materials, staff training, and implementation arrangements for the junior high guidance program, (2) development of measures for assessing student achievement of instructional objectives, and (3) design of learning units for the curriculum. This report…

  4. Studies of incipient oxidation of pyrite for improved rejection. Technical progress report for the fourth quarter, July 1, 1993--September 30, 1993

    SciTech Connect

    Yoon, R.H.; Richardson, P.E.

    1993-10-01

    One major objective of this work is to determine the Eh-pH conditions under which pyrite is stable and then to determine the mechanism of the initial stages of pyrite oxidation. It is known that moderate oxidation of pyrite produces a hydrophobic surface product. This hydrophobic product makes it extremely difficult to depress pyrite in coal flotation circuits. The eventual objective of this work is to prevent pyrite oxidation in order to better depress pyrite in coal flotation circuits. In this work clean, unoxidized pyrite surfaces are being produced by fracturing pyrite electrodes in an electrochemical cell. It has been shown that by holding the potential at different values during fracture and measuring the current passed at fracture, pyrite oxidation or reduction can be precisely controlled, or prevented. In the previous quarterly report, pyrite oxidation in pH 9.2 buffer solution was discussed. During this report period, the initial stages of pyrite oxidation in pH 4.6 buffer solution were studied, and the results compared with those in pH 9.2 solution. The effect of anodic and cathodic potential limits on the subsequent photocurrent and voltammetry behavior of freshly-fractured pyrite electrodes was also determined.

  5. Superclean coal-water slurry combustion testing in an oil-fired boiler. Quarterly technical progress report, November 15, 1989--February 15, 1990

    SciTech Connect

    Miller, B.G.; Walsh, P.M.; Elston, J.T.; Scaroni, A.W.

    1990-04-06

    The Pennsylvania State University is conducting a superclean coal-water slurry (SCCWS) program for the US Department of Energy (DOE) and the Commonwealth of Pennsylvania with the objective of demonstrating the capability of effectively firing SCCWS in industrial boilers designed for oil. Penn State has entered into a cooperative agreement with DOE to determine if SCCWS (a fuel containing coal with less than 3% ash and 0.9% sulfur) can effectively be burned in oil-designed industrial boilers without adverse impact on boiler rating, maintainability, reliability, and availability. The project will provide information on the design of new systems specifically configured to fire these clean coal-based fuels. The project consists of three phases: (1) design, permitting, and test planning, (2) construction and start up, and (3) operations and disposition. The boiler testing will determine if the SCCWS combustion characteristics, heat release rate, slagging and fouling factors, erosion and corrosion limits, and fuel transport, storage, and handling can be accommodated in an oil-designed boiler. In addition, the proof-of-concept demonstration will generate data to determine how the properties of SCCWS and its parent coal affect boiler performance. Economic factors associated with retrofitting and operating boilers will be identified to assess the viability of future oil-to-coal retrofits. Progress for this quarter is summarized.

  6. Oil shale, tar sand, coal research, advanced exploratory process technology, jointly sponsored research. Quarterly technical progress report, January--March 1993

    SciTech Connect

    Not Available

    1993-09-01

    Accomplishments for the past quarter are briefly described for the following areas of research: oil shale; tar sand; coal; advanced exploratory process technology; and jointly sponsored research. Oil shale and tar sand researches cover processing studies. Coal research includes: coal combustion; integrated coal processing concepts; and solid waste management. Advanced exploratory process technology covers: advanced process concepts; advanced mitigation concepts; and oil and gas technology. Jointly sponsored research includes: organic and inorganic hazardous waste stabilization; CROW{sup TM} field demonstration with Bell Lumber and Pole; development and validation of a standard test method for sequential batch extraction fluid; operation and evaluation of the CO{sub 2} HUFF-N-PUFF Process; fly ash binder for unsurfaced road aggregates; solid-state NMR analysis of Mesaverde Group, Greater Green River Basin tight gas sands; characterization of petroleum residue; shallow oil production using horizontal wells with enhanced oil recovery techniques; surface process study for oil recovery using a thermal extraction process; oil field waste cleanup using tank bottom recovery process; remote chemical sensor development; in situ treatment of manufactured gas plant contaminated soils demonstration program; solid-state NMR analysis of naturally and artificially matured kerogens; and development of an effective method for the clean-up of natural gas.

  7. Improvement of storage, handling and transportability of fine coal. Quarterly technical progress report No. 3, July 1, 1994--September 30, 1994

    SciTech Connect

    1996-08-16

    The Mulled Coal process was developed as a means of overcoming the adverse handling characteristics of wet fine coal without thermal drying. The process involves the addition of a low cost, harmless reagent to wet fine coal using off-the-shelf mixing equipment. The objectives of this project are to demonstrate that: The Mulled Coal process, which has been proven to work on a wide range of wet fine coals at bench scale, will work equally well on a continuous basis, producing consistent quality at a convincing rate of production in a commercial coal preparation plant. The wet product from a fine coal cleaning circuit can be converted to a solid fuel form for ease of handling and cost savings in storage and rail car transportation. A wet fine coal product thus converted to a solid fuel form, can be stored, shipped, and burned with conventional fuel handling, transportation, and combustion systems. During this third quarter of the contract period, activities were underway under Tasks 2 and 3. Sufficient characterization of the feedstock coal options at the Chetopa Plant was conducted and mulling characteristics determined to enable a decision to be made regarding the feedstock selection. It was decided that the froth concentrate will be the feedstock wet fine coal used for the project. On that basis, activities in the areas of design and procurement were initiated.

  8. Hydrocarbon-oil encapsulate bubble flotation of fine coal. Technical progress report for the eighth quarter, July 1, 1992--September 30, 1992

    SciTech Connect

    Peng, F.F.

    1995-01-01

    A portion of this reporting period has been consumed in the following tasks: (1) development of air-water-frother sparging system using an assemble of two sets of atomizers; (2) conducting the column flotation tests followed 2{sup 6} {times} 1/4 fractional factorial design; (3) to develop a collector gasifier system for formation of hydrocarbon-oil encapsulated bubbles. To effectively remove sulfur and mineral matters from coal, the coal particles must be ground to minus 75 {mu}m (minus 200 U.S. sieve) or less to liberate the pyrite and mineral matters from the coal matrix. As reported in a previous report (Fifth Quarterly report), in order to effectively reduce ash content in fine clean coal products using a 3-in. flotation column, the height of the column must be increased to increase the depth of the frother and the residence time of coal particles in the flotation column. In this study, a series of column flotation tests were conducted on freshly ground minus 75 {mu}m Upper Freeport seam coal. The flotation column is equipped with froth washing device as well as two sets of atomizers for sparging the air-water and frother mixture. The operation of column flotation involves the multiplicity of control variables. Thus, three phases of work plan were used to minimize the number of tests. In this report, the results of column flotation tests obtained in the third phase of the experiment work are reported. The column flotation is capable of achieving 90 percent or more of combustible recovery and 70 percent or more of ash rejection from the raw coal contained 20 percent or greater ash content. The main objectives of this reporting period are: (1) to establish a test procedure, and to determine the optimal height of flotation column and operating conditions for cleaning minus 75 {mu}m Upper Freeport seam coal, and (2) to extend the test procedure and the operating conditions established to clean various seam coals using a hydrocarbon-oil encapsulated bubble flotation.

  9. Bench-scale testing of on-line control of column flotation using a novel analyzer. Quarterly technical progress report, September 21, 1992--December 31, 1992

    SciTech Connect

    Not Available

    1992-01-22

    This document contains the first quarterly technical progress report for PTI`s Bench-Scale Testing Project of a circuit integrating PTI`s KEN-FLOTETM Column Flotation Technology and PTI`s On-Line Quality Monitor Control System. The twelve-month project will involve installation of a 300 lb/hr. bench-scale testing circuit at PETC`s Coal Preparation Process Research Facility (CPPRF) and testing of two bituminous coals (Upper Freeport and Pittsburgh No. 8 Seam Raw Coals). Figure 1 contains the project plan as well as the approach to completing the major tasks within the twelvemonth project. The project is broken down into three phases, which include: Phase I - Preparation: The preparation phase was performed principally at PTI`s Calumet offices from October through December, 1992. It involved building of the equipment and circuitry, as well as some preliminary design and equipment testing. Phase II - ET Circuit Installation and Testing: This installation and testing phase of the project will be performed at PETC`s CPPRF from January through May, 1993, and will be the major focus of the project. It will involve testing of the continuous 300 lb/hr. circuit. Phase II - Project Finalization: The project finalization phase will occur from June through September, 1993, at PTI`s Calumet offices and will involve finalizing analytical work and data evaluation, as well as final project reporting. This quarterly progress report principally summarizes the results from the Phase I preparation work and the plan for the early portions of the Phase 11 installation and commissioning, which will occur in January and the first week of February, 1993.

  10. Development of vanadium-phosphate catalysts for methanol production by selective oxidation of methane: Quarterly technical progress report 15, October 1-December 31, 1996

    SciTech Connect

    McCormick, R.L., Alptekin, G.O.

    1997-04-02

    This document is the fifteenth quarterly technical progress report under Contract No. DE-AC22-92PC921 `Development of Vanadium- Phosphate Catalysts for Methanol Production by Selective Oxidation of Methane` and covers the period October-December, 1996. Vanadium phosphate, vanadyl pyrophosphate specifically, is used commercially to oxidize butane to maleic anhydride and is one of the few examples of an active and selective oxidation catalyst for alkanes. In this project we are examining this catalyst for the methane oxidation reaction. Initial process variable and kinetic studies indicated that vanadyl pyrophosphate is a reasonably active catalyst below 5000{degrees}C but produces CO as the primary product, no formaldehyde or methanol were observed. A number of approaches for modification of the phosphate catalyst to improve selectivity have been tried during this project. During this quarter we have obtained surface areas of catalysts prepared with modified surface acidity. The results confirm the enhanced activity of two of the modified preparations in methanol conversion (a test reaction for surface acid sites). In previous work we noted no improvement in methane oxidation selectivity for these catalysts. Surface areas, surface analysis by XPS, and bulk analysis by ICP-AA have been obtained for vanadyl pyrophosphate promoted by Cr, Cu, and Fe. These data indicate that roughly one tenth of the surface metal atoms are promoter. A similar analysis was obtained for the bulk. Preliminary examination of binding energies suggests a slightly more reduced surface for the Cr and Fe promoted catalysts which exhibit a significant selectivity to formaldehyde in methane oxidation. A more detailed kinetic model has also been developed to aid in comparing the promoted catalysts and is discussed. Plans for the coming months are outlined.

  11. Treatment of metal-laden hazardous wastes with advanced clean coal technology by-products. Quarterly report, June 30--September 30, 1996

    SciTech Connect

    Cobb, J.T.; Neufeld, R.D.; Blachere, J.R.

    1996-12-31

    During the fourth quarter of Phase 2, work continued on evaluating treatment of the seventh residue of Phase 1, conducting scholarly work, preparing for field work, preparing and delivering presentations, and making additional outside contacts. The work consisted of further testing of the solidification of the seventh hazardous waste--the sandblast residue from paint removal in a building--and examining the microstructure of the products of solidification. There were two treated waste mixtures which demonstrated immediate stabilization, the sandblast residue w/30% spray drier residue (CONSOL) and the sandblast residue w/50% PFBC residue (Tidd).

  12. Design and fabrication of advanced materials from Illinois coal wastes. [Quarterly] technical report, September 1--November 30, 1994

    SciTech Connect

    Malhotra, V.M.; Wright, M.A.

    1994-12-31

    The main goal of this project is to develop a bench-scale procedure to design and fabricate advanced brake and structural composite materials from Illinois coal combustion residues. During the first quarter of the project, the thrust of the work was directed towards setting up the experimental facilities and undertaking preliminary tests to gauge the ability of coal tar derived binder in fabricating the brake skeletons. In addition systematic scanning electron microscopy (SEM), differential scanning calorimetry (DSC), and differential thermal analysis (DTA) were conducted on PCC fly ash (Baldwin), fly ash (ADM), FBC fly ash, FBC spent bed bottom ash, bottom ash (ADM), and scrubber sludge residues to characterize their geometrical shape and thermal stability. The PCC fly ash particles being highly spherical in shape and thermally inert up to 1100{degrees}C will make an excellent raw material for our composites. This is born out by fabricating brake skeletons from PCC fly ash colloids. Unlike the PCC fly ash and FBC fly ash, the scrubber sludge particles are not suitable hosts for our brake lining materials because of a whisker-like particle structure. Six different compositions of various combustion residues were tested in the fabrication of brake skeletons, and our tar derived binder shows great promise in the fabrication of composite materials.

  13. Fine particle clay catalysts for coal liquefaction. Quarterly technical progress report, May 8, 1993--August 8, 1993

    SciTech Connect

    Olson, E.S.

    1995-10-01

    High hydrocracking and liquefaction activity can be achieved with 10 wt.% of sulfided clay-supported iron catalysts. Further tests and demonstrations of this activity were required. Iron hydroxyoxide was generated on acid-treated montmorillonite. The new batch of catalyst exhibited high hydrocracking activity, Three hour tests with the solubilized intermediate from low-severity treatment of Wyodak coal (LSW) gave a high conversion (45%) of the heptane-insoluble LSW intermediate to heptane-soluble products. An investigation of new methods for the production of catalysts from tetralin-soluble iron oxometallates and the determination of their catalytic activities was continued in this quarter. Iron oxotitanate and iron oxoaluminate gave very high conversions of LSW to heptane solubles (61% and 54%, respectively). The high yields of heptane soluble products obtained with these catalysts offers a potential for use in liquefaction stages with solubilized coal, or at least serve as a model for producing active catalysts via mixed metal oxides. Methods for successfully testing dispersed iron catalysts with the low-severity intermediate were also devised. Catalyst recovered from the dispersed iron hydroxyoxide-catalyzed reaction of ion-exchanged Wyodak gave a high conversion (47%) of LSW to heptane solubles.

  14. Molten salt coal gasification process development unit, Phase 2. Quarterly technical progress report No. 1, July-September 1980

    SciTech Connect

    Slater, M.H.

    1980-10-01

    This represents the first quarterly progress report on Phase 2 of the Molten Salt Coal Gasification Process Development Unit (PDU) Program. Phase 1 of this program started in March 1976 and included the design, construction, and initial operation of a PDU to test the Molten Salt Coal Gasification Process. On July 24, 1980, Phase 2 of the program was initiated. It covers a 1-year operations program utilizing the existing PDU and is planned to include five runs with a targeted total operating time of 9 weeks. The primary activities during the period covered by this report related to preparations for PDU Run 6, the initial run of the Phase 2 program. These activities included restaffing the PDU operations group, reactivation of the facility, and effecting plant modifications and improvements based on an evaluation of previous operation experience. The Melt Withdrawal System which had proven unreliable during the previous runs, was completely redesigned; thermal and flow analyses were performed; new components procured; and assembly initiated. Run 6 which is scheduled for the next report period, is aimed primarily at verifying the adequacy of the redesigned Melt Withdrawal System.

  15. Molten Salt Coal Gasification Process Development Unit. Phase 2. Quarterly technical progress report No. 2, October-December 1980

    SciTech Connect

    Slater, M. H.

    1981-01-20

    This represents the second quarterly progress report on Phase 2 of the Molten Salt Coal Gasification Process Development Unit (PDU) Program. Phase 1 of this program started in March 1976 and included the design, construction, and initial operation of the PDU. On June 25, 1980, Phase 2 of the program was initiated. It covers a 1-year operations program utilizing the existing PDU and is planned to include five runs with a targeted total operating time of 9 weeks. During this report period, Run 6, the initial run of the Phase 2 program was completed. The gasification system was operated for a total of 95 h at pressures up to 10 atm. Average product gas HHV values of 100 Btu/scf were recorded during 10-atm operation, while gasifying coal at a rate of 1100 lb/h. The run was terminated when the melt overflow system plugged after 60 continuous hours of overflow. Following this run, melt withdrawal system revisions were made, basically by changing the orifice materials from Monofrax to an 80 Cobalt-20 Chromium alloy. By the end of the report period, the PDU was being prepared for Run 7.

  16. Bioconversion of coal derived synthesis gas to liquid fuels. Final quarterly technical progress report, July 1, 1993--September 30, 1993

    SciTech Connect

    Jain, M.K.; Worden, R.M.; Grethlein, H.

    1993-10-25

    The overall objective of the project is to develop an integrated two stage fermentation process for conversion of coal-derived synthesis gas to a mixture of alcohols. This is achieved in two steps. In the first step, Butyribacterium methylotrophicum converts carbon monoxide (CO) to butyric and acetic acids. Subsequent fermentation of the acids by Clostridium acetobutylicum leads to the production of butanol and ethanol. The tasks for this quarter were: (1) development/isolation of superior strains for fermentation of syngas, (2) optimization of process conditions for fermentation of syngas, (3) evaluation of bioreactor configuration for improved mass transfer of syngas, (4) development of a membrane-based pervaporation system, (5) optimization of process conditions for reducing carbon and electron loss by H{sub 2}-CO{sub 2} fermentation, and (6) synthesis gas fermentation in single-stage by co-culture. Progress is reported in isolation of CO utilizing anaerobic strains; investigating the product profile for the fermentation of syngas by B. methylotrophicum; and determining the effect of carbon monoxide on growth of C. acetobutylicum.

  17. National Institute for Petroleum and Energy Research quarterly technical report, January 1--March 31, 1993. Volume 2, Energy production research

    SciTech Connect

    Not Available

    1993-06-01

    Accomplishments for the past quarter are briefly described for the following tasks: chemical flooding -- supporting research; gas displacement -- supporting research; thermal recovery -- supporting research; geoscience technology; resource assessment technology; and microbial technology. Chemical flooding covers: surfactant flooding methods; development of improved alkaline flooding methods; mobility control and sweep improvement in chemical flooding; and surfactant-enhanced alkaline flooding field project. Gas displacement covers: gas flooding performance prediction improvement; and mobility control, profile modification and sweep improvement in gas flooding. Thermal recovery includes: thermal processes for light oil recovery; thermal processes for heavy oil recovery; and feasibility study of heavy oil recovery in the mid-continent region -- Oklahoma, Kansas, and Missouri; simulation analysis of steam-foam projects; and field application of foams for oil production symposium. Geoscience technology covers: three-phase relative permeability; and imaging techniques applied to the study of fluids in porous media. Resource assessment technology includes: reservoir assessment and characterization; TORIS research support; upgrade the BPO crude oil analysis data base; and compilation and analysis of outcrop data from the Muddy and Almond Formations. Microbial technology covers development of improved microbial flooding methods; and microbial-enhanced waterflooding field project.

  18. Quarterly Technical Progress Report of Radioisotope Power System Materials Production and Technology Program tasks for January 2000 through March 2000

    SciTech Connect

    Moore, J.P.

    2000-08-18

    The Office of Space and Defense Power Systems (OSDPS) of the Department of Energy (DOE) provides radioisotope Power Systems (BPS) for applications where conventional power systems are not feasible. For example, radioisotope thermoelectric generators were supplied by the DOE to the National Aeronautics and Space Administration for deep space missions including the Cassini Mission launched in October of .I 997 to study the planet Saturn. The Oak Ridge National Laboratory (ORNL) has been involved in developing materials and technology and producing components for the DOE for more than three decades. For the Cassini Mission, for example, ORNL was involved in the production of carbon-bonded carbon fiber (CBCF) insulator sets, iridium alloy blanks and foil, and clad vent sets (CVSs) and weld shields (WSs). This quarterly report has been divided into three sections to reflect program guidance from OSDPS for fiscal year (FY) 2000. The first section deals primarily with maintenance of the capability to produce flight quality carbon-bonded carbon fiber (CBCF) insulator sets, iridium alloy blanks and foil, clad vent sets (CVSs), and weld shields (WSs). In all three cases, production maintenance is assured by the manufacture of limited quantities of flight quality (FQ) components. The second section deals with several technology activities to improve the manufacturing processes, characterize materials, or to develop technologies for two new RPS. The last section is dedicated to studies of the potential for the production of 238Pu at OBNL.

  19. Quarterly Technical Progress Report of Radioisotope Power System Materials Production and Technology Program tasks for April 2000 through June 2000

    SciTech Connect

    Moore, J.P.

    2000-10-23

    The Office of Space and Defense Power Systems (OSDPS) of the Department of Energy (DOE) provides Radioisotope Power Systems (RPS) for applications where conventional power systems are not feasible. For example, radioisotope thermoelectric generators were supplied by the DOE to the National Aeronautics and Space Administration for deep space missions including the Cassini Mission launched in October of 1997 to study the planet Saturn. The Oak Ridge National Laboratory (ORNL) has been involved in developing materials and technology and producing components for the DOE for more than three decades. For the Cassini Mission, for example, ORNL was involved in the production of carbon-bonded carbon fiber (CBCF) insulator sets, iridium alloy blanks and foil, and clad vent sets (CVSs) and weld shields (WSs). This quarterly report has been divided into three sections to reflect program guidance from OSDPS for fiscal year (FY) 2000. The first section deals primarily with maintenance of the capability to produce flight quality carbon-bonded carbon fiber (CBCF) insulator sets, iridium alloy blanks and foil, clad vent sets (CVSs), and weld shields (WSs). In all three cases, production maintenance is assured by the manufacture of limited quantities of flight quality (FQ) components. The second section deals with several technology activities to improve the manufacturing processes, characterize materials, or to develop technologies for two new RPS. The last section is dedicated to studies of the potential for the production of 238Pu at ORNL.

  20. (Study of the behavioral and biological effects of high intensity 60 Hz electric fields): Quarterly technical progress report No. 29

    SciTech Connect

    Orr, J.L.

    1989-07-14

    Activities this quarter involved all phases of the project plus a meeting of the Joint Committee in Tokyo. Detailed mapping of the exposure facility is scheduled to be completed during the week of August 14, 1989. Both electric and magnetic fields should be available for tests of the components of the tether and blood sampling system for the neuroendocrine pilot study in September 1989. The groups for the social behavior study are stabilizing appropriately. Details on the formation of the groups and their status has been provided. Dr. Coelho has included information related to aspects of the social experiment ranging from age estimation in baboons through the cardiovascular consequences of psychosocial stress. In addition, a draft manuscript is included on the data from the previous experiments which describes the effects of 30 and 60 kV/m electric fields on the social behavior of baboons. Tests of the blood handling procedures and analysis methods have been completed. With the exception of the catecholamine analyses, the handling procedures and variability in replicate measurements are satisfactory. Logistic and practical considerations now weigh strongly against including the analysis of the blood samples for catecholamines. Preliminary tests indicate that a sampling procedure which will work for the other compounds is probably not satisfactory for the catecholamines.

  1. Superior catalysts for selective catalytic reduction of nitric oxides; Quarterly technical progress report, October 1, 1993--December 31, 1993

    SciTech Connect

    Chen, J.P.; Cheng, L.S.; Kikkinides, E.S.; Yang, R.T.

    1993-12-31

    Work was done in three tasks during the first quarter. In Task 1, a new SCR reactor system has been built, complete with on-line GC and MS analyses. The GC is used to monitor the N{sub 2} product so the NO{sub x} > N{sub 2} conversion can be calculated. The MS is used to analyze the N{sub 2}0 concentration. In addition, a wet analytical technique has been established for SO{sub 3} analysis. The new SCR system and the SO{sub 3} analytical technique have been subjected to shakedown tests with success. Along with the existing SCR reactor system, there are now two systems that are being run independently. In Task 2, a procedure for the synthesis of stable Fe{sub 2}O{sub 3} Pillared clay has been established. Inductive coupled plasma spectrometric analysis (ICP) has been used to analyze the chemical composition of the Fe{sub 2}O{sub 3} Pillared clay. Preliminary results for the SCR activities of the Fe{sub 2}O{sub 3} pillared clay are obtained in Task 3. The results show that the activities are near that of the commercial V{sub 2}O{sub 5}/TiO{sub 2} catalysts. However, the SO{sub 2}-to-SO{sub 3} conversion is substantially lower with the pillared clay catalyst, which could be an important advantage.

  2. Coal combustion: Effect of process conditions on char reactivity. Sixth quarterly technical report, December 1, 1992--March 1, 1993

    SciTech Connect

    Zygourakis, K.

    1993-05-01

    During the past quarter, we developed the image analysis procedure for obtaining the transient swelling patterns of pyrolyzing coal particles. Pyrolysis experiments were videotaped and a sequence of digital images was acquired from each experiment tape at rates of 1.5 to 6 images per second. These digital images were then processed to measure the size and shape of pyrolyzing particles as a function of pyrolysis temperature. A systematic analysis of the transient swelling patterns showed significant differences among runs carried out at different heating rates. At low heating rates (1{degree}C/s), the particles swelled rapidly to their maximum size. This initial swelling was followed by a ``bubbling`` phase during which the particles underwent a rapid sequence of expansions and contractions as bubbles of volatiles grew in the particle interior and broke through their surface. The particle size then decreased to show a small final swelling. At higher heating rates, the particle size decreased significantly during the ``bubbling`` phase and the final swelling was higher. A systematic comparison of particle swelling and devolatilization rates is also presented.

  3. Coal combustion under conditions of blast furnace injection. [Quarterly] technical report, 1 December 1993--28 February 1994

    SciTech Connect

    Crelling, J.C.

    1994-06-01

    A potentially new use for Illinois coal is its use as a fuel injected into a blast furnace to produce molten iron as the first step in steel production. Because of its increasing cost and decreasing availability, metallurgical coke is now being replaced by coal injected at the tuyere area of the furnace where the blast air enters. The purpose of this study is to evaluate the combustion of coal during the blast furnace injection process and to delineate the optimum properties of the feed coal. This proposal is a follow-up to one funded for the 1992--1993 period. It is intended to complete the study already underway with the Armco Inc. Steel Company and to initiate a new cooperative study along somewhat similar lines with the Inland Steel Company. The results of this study will lead to the development of a testing and evaluation protocol that will give a unique and much needed understanding of the behavior of coal in the injection process and prove the potential of Illinois coals for such use. During this quarter a sample of the feed coal that is being used for injection into the No. 7 Blast Furnace of Inland Steel has been analyzed petrographically and compared to both the Herrin No. 6 coal and Armco feed coal. Additional characterization is underway and an advanced program of pyrolysis and reactivity testing has been initiated.

  4. An advanced control system for fine coal flotation. Fourth quarterly technical progress report, July 1, 1996--September 30, 1996

    SciTech Connect

    Adel, G.T.; Luttrell, G.H.

    1997-03-04

    A model-based flotation control scheme is being implemented to achieve optimal performance in the handling and treatment of fine coal. The control scheme monitors flotation performance through on-line analysis of ash content. Then, based on the economic and metallurgical performance of the circuit, variables such as reagent dosage, pulp density and pulp level are adjusted using model-based control algorithms to compensate for feed variations and other process disturbances. Recent developments in sensor technology are being applied for on-line determination of slurry ash content. During the fourth quarter of this project, a final attempt was made to calibrate a video-based ash analyzer for use in this application. It was concluded that the low ash content and the coarse particle size of the flotation tailings slurry at the Maple Meadow plant site made the video-based system unsuitable for this application. Plans are now underway to lease a nuclear-based analyzer as the primary sensor for this project.

  5. Bench-scale testing of the micronized magnetite process. Fourth quarterly technical progress report, April--June 1995

    SciTech Connect

    1995-08-10

    The main accomplishments of Custom Coals and the project subcontractors, during this period, included: continued purchase of small equipment and supplies for the circuit; completed the circuit commissioning task; procured one lot of PennMag Grade-K and one lot Grade-L magnetite; completed work on analytical investigations; completed Classifying Circuit Component Testing on Pittsburgh No. 8 coal; completed the final Heavy-Media cyclone component testing on the Pittsburgh No. 8 seam using Grade-K and Grade-L magnetites; continued QA/QC tests on wet screening, wet splitting, Marcy Balance, and reproducibility checks on component tests and component test samples; and completed the magnetite recovery circuit component testing with and without screens using the Grade-K magnetite and the Pittsburgh No. 8 coal seam. This report contains a short discussion of the project description, objectives, budget, schedule, and teaming arrangement. It also includes a detailed discussion of the above mentioned project accomplishments and plans, organized by the various task series within the project work plan. The final section contains an outline of the specific project goals for the next quarterly reporting period.

  6. Microbial strain improvement for organosulfur removal from coal. [Quarterly] technical report, December 1, 1991--February 29, 1992

    SciTech Connect

    Kilbane, J.J. II

    1992-08-01

    IGT has developed a microbial culture of Rhodococcus rhodochrous, designated as IGTS8, that is capable of specifically cleaving carbon-sulfur bonds in a range of organosulfur model compounds and is capable of removing organic sulfur from coal and petroleum without sacrificing the calorific value of the fuel. Although IGTS8 possesses the ability to specifically remove organic sulfur from coal, a major research need is to develop improved strains of microorganisms that possess higher levels of desulfurization activity and therefore will permit more favorable biodesulfurization process conditions: faster rates, more complete removal, and smaller reactor size. Strain improvement is the single most important aspect to the development of a practical coal desulfurization process and accordingly is the focus of research in this project. During the current quarter improved cloning vectors have been constructed and genomic libraries have been constructed and screened both in Escherichia coli and in Rhodococcus rhodochrous. Desulfurization genes have not yet been identified; however, the construction of additional genomic libraries and the implementation of new strategies for the detection of desulfurization genes are currently in progress.

  7. A coal-fired combustion system for industrial process heating applications. Quarterly technical progress report, April 1993--June 1993

    SciTech Connect

    Not Available

    1993-07-30

    Vortec Corporation`s Phase III development contract DE-AC22-91PC91161 for a ``Coal-Fired Combustion System for Industrial Process Heating Applications`` is project funded under the DOE/PETC advanced combustion program. This advanced combustion system research program is for the development of innovative coal-fired process heaters which can be used for high temperature melting, smelting and waste vitrification processes. The process heater systems to be developed have multiple use applications; however, the Phase III research effort is being focused on the development of a process heater system to be used for producing value added vitrified glass products from boiler/incinerator ashes and industrial wastes. The primary objective of the Phase III project is to develop and integrate all the system components, from fuel through total system controls, and then test the complete system in order to evaluate its potential marketability. During the past quarter, the designs of the remaining major components of the integrated system were completed and the equipment was ordered. DOE has elected to modify the scope of the existing R&D program being conducted under this contract to include testing of a simulated TSCA incinerator ash. The modification will be in the form of an additional Task (Task 8 -- TSCA Ash Testing) to the original Statement of Work.

  8. Development of the Selective Hydrophobic Coagulation process. Seventh quarterly technical progress report, April 1, 1993--June 30, 1993

    SciTech Connect

    Yoon, R.H.; Luttrell, G.H.

    1993-11-01

    A novel technique for selectively coagulating and separating coal from dispersed mineral matter has been developed at Virginia Tech. The process, known as Selective Hydrophobic Coagulation (SHC), has been studied under the sponsorship of the US Department of Energy since 1986 (Contracts DE-AC22-86PC91221 and DE-AC22-90PC90174). The SHC process differs from oil agglomeration, shear flocculation, polymer flocculation, and electrolytic coagulation processes in that it does not require reagents or additives to induce the formation of coagula. Often, simple pH control is all that is required to (i) induce the coagulation of coal particles, and (ii) effectively disperse particles of mineral matter. When the coal is superficially oxidized, a small dosage of reagents may be used to promote coagulation. During the quarter, work was completed on the development of the hydrophobic interaction energy function (Subtask 2.1) and the extended DLVO equation (Subtask 2.2.). Work to predict optimum operating conditions using the extended DLVO equation (Subtask 2.3) is underway. In Task 3 -- Process Development, work was completed on the study to determine the effect of mixing on coagula growth (Subtask 3.2) and on the use of column flotation for the recovery of coal coagula (subtask 3.3.4). Work is underway on the use of the lamella thickener and filter for the recovery of coagula (Subtasks 3.3.1 and 3.3.2).

  9. Development and process evaluation of improved Fischer-Tropsch slurry catalysts. Quarterly technical progress report, 1 July--30 September 1988

    SciTech Connect

    Withers, H.P.; Bukur, D.B.; Rosynek, M.P.

    1988-12-31

    The objective of this contract is to develop a consistent technical data base on the use of iron-based catalysts in Fischer-Tropsch (F-T) synthesis reactions. This data base will be developed to allow the unambiguous comparison of the performance of these catalysts with each other and with state-of-the-art iron catalyst compositions. Particular attention will be devoted to generating reproducible kinetic and selectivity data and to developing reproducible improved catalyst compositions.

  10. Development and process evaluation of improved Fischer-Tropsch slurry catalysts. Quarterly technical progress report, 1 October--31 December 1988

    SciTech Connect

    Withers, H.P.; Bukur, D.B.; Rosynek, M.P.

    1988-12-31

    The objective of this contract is to develop a consistent technical data base on the use of iron-based catalysts in Fischer-Tropsch (FT) synthesis reactions. This data base will be developed to allow the unambiguous comparison of the performance of these catalysts with each other and with state-of-the-art iron catalyst compositions. Particular attention will be devoted to generating reproducible kinetic and selectivity data and to developing reproducible improved catalyst compositions.

  11. Integration of advanced geoscience and engineering techniques to quantify interwell heterogeneity. Quarterly technical report, January 1--March 31, 1994

    SciTech Connect

    Martin, F.D.; Buckley, J.S.; Weiss, W.W.; Ouenes, A.

    1994-12-31

    The objective of this project is to integrate advanced geoscience and reservoir engineering concepts, with the goal of quantifying the dynamics of fluid-rock and fluid-fluid interactions as they relate to reservoir architecture and lithologic characterization. This interdisciplinary effort will integrate geological and geophysical data with engineering and petrophysical results through reservoir simulation. Technical progress is summarized for the following: geological studies; hydrologic and tracer research; and geophysical research.

  12. Treatment of metal-laden hazardous wastes with advanced clean coal technology by-products. Quarterly report, February--May 1995

    SciTech Connect

    1995-07-01

    This report describes the activities of the project team during the reporting period. The principal work has focused upon the laboratory treatment of six wastes with three by-products and the evaluation of the stability of the resulting eighteen materials. Other efforts during the third quarter have been directed toward completion of the collection and analysis of by-products, the identification of a suitable fourth by-product, and the definition of the approach to the solidification tests. The activity on the project during the third quarter of Phase One has fallen into three major areas: acquiring and analyzing by-products; treating hazardous wastes with by-products in the laboratory and analyzing the results; and conducting administrative activities, including public relations and personnel additions. The hazardous wastes that are used include industrial wastewater treatment residue from battery manufacturing plant; contaminated soil from a remediation project conducted at a munitions depot; contaminated soil from a remediation project conducted at an abandoned industrial site; contaminated soil from a remediation project conducted at a former sewage treatment plant; air pollution control dust from basic oxygen furnace steel production; and air pollution control ash from municipal waste incineration.

  13. Development of a gas-promoted oil agglomeration process. Quarterly technical progress report, July 1, 1995--September 30, 1995

    SciTech Connect

    Wheelock, T.D.

    1995-12-31

    The preliminary laboratory-scale development of a gas-promoted, oil agglomeration process for cleaning coal advanced in three major research areas. One area of research resulted in the development of a method for measuring the rate of agglomeration of dilute particle suspensions and using the method to relate the rate of agglomeration of coal particles to various key parameters. A second area of research led to the development of a method for monitoring a batch agglomeration process by measuring changes in agitator torque. With this method it was possible to show that the agglomeration of a concentrated coal particle suspension is triggered by the introduction of a small amount of gas. The method was also used in conjunction with optical microscopy to study the mechanism of agglomeration. A third area of research led to the discovery that highly hydrophobic particles in an aqueous suspension can be agglomerated by air alone.

  14. Development of a gas-promoted oil agglomeration process. [Quarterly] technical progress report, September 1, 1993--November 30, 1993

    SciTech Connect

    Wheelock, T.D.

    1993-12-31

    The overall purpose of this research project is to carry out the preliminary laboratory-scale development of a gas-promoted, oil agglomeration process for cleaning coal using model mixing systems. Previous research showed that having a gas present in an agitated system used for the agglomeration of an aqueous suspension of coal particles with oil would reduce greatly the required mixing shear rate and power input. To take advantage of this discovery, the present research project was initiated. The project will involve building and testing two model mixing systems which differ in scale but are representative of standard industrial mixing systems used for mixing solid particles, liquid, and gas. These systems will be tested by conducting oil agglomeration tests under various conditions and measuring agitator torque and power as well as agglomeration performance. Special attention will be given to the effects produced by having gas present in the system.

  15. Low-rank coal research under the UND/DOE cooperative agreement. Quarterly technical progress report, April 1983-June 1983

    SciTech Connect

    Wiltsee, Jr., G. A.

    1983-01-01

    Progress reports are presented for the following tasks: (1) gasification wastewater treatment and reuse; (2) fine coal cleaning; (3) coal-water slurry preparation; (4) low-rank coal liquefaction; (5) combined flue gas cleanup/simultaneous SO/sub x/-NO/sub x/ control; (6) particulate control and hydrocarbons and trace element emissions from low-rank coals; (7) waste characterization; (8) combustion research and ash fowling; (9) fluidized-bed combustion of low-rank coals; (10) ash and slag characterization; (11) organic structure of coal; (12) distribution of inorganics in low-rank coals; (13) physical properties and moisture of low-rank coals; (14) supercritical solvent extraction; and (15) pyrolysis and devolatilization.

  16. Production of Illinois base compliance coal using enhanced gravity separation. [Quarterly] technical report, September 1--November 30, 1993

    SciTech Connect

    Paul, B.C.; Honaker, R.Q.; Ho, K.

    1993-12-31

    Illinois Basin coal often contains a significant portion of finely dispersed pyrite. Most of the free pyrite particles exist in the fine size fractions, which are generally treated using froth flotation. An inherent problem of the froth flotation process is the inefficient treatment of middling particles containing a small amount of coal on their surface. On the other hand, gravity-based processes can effectively remove middling particles containing only a small amount of coal. Falcon Concentrators Inc. and Knelson Gold Concentrators Inc. have developed full-scale, enhanced gravity separators for the treatment of heavy minerals. This project will evaluate the potential of using these concentrators to de-ash and de-sulfurize Illinois coal fines, thus, producing coal products that meet the requirements for Phase I of the Clean Air Act. Since both continuous separators are commercially available, the results obtained in this investigation should be applicable to industrial operations.

  17. Hot Gas Cleanup Test Facility for gasification and pressurized combustion. Quarterly technical progress report, October 1--December 31, 1991

    SciTech Connect

    Not Available

    1991-12-31

    The objective of this project is to evaluate hot gas particle control technologies using coal-derived gas streams. This will entail the design, construction, installation, and use of a flexible test facility which can operate under realistic gasification and combustion conditions. The major particulate control device issues to be addressed include the integration of the particulate control devices into coal utilization systems, on-line cleaning techniques, chemical and thermal degradation of components, fatigue or structural failures, blinding, collection efficiency as a function of particle size, and scale-up of particulate control systems to commercial size. The major emphasis during this reporting period was finishing the conceptual design for the test facility and discussions on the potential expansion of the test facility. Results are discussed for the following subtasks of conceptual design: design bases; quasifier/combustor and hot stream design; balance of plant designs; and particulate collection.

  18. Advanced Emissions Control Development Program. Quarterly Technical Progress Report {number_sign}6 for the period: January 1 to March 31, 1996

    SciTech Connect

    Farthing, George A.

    1996-12-31

    Babcock {ampersand} Wilcox (B{ampersand}W) is conducting a five-year project aimed at the development of practical, cost-effective strategies for reducing the emissions of hazardous air pollutants (commonly called air toxics) from coal-fired electric utility plants. The need for air toxic emissions controls will likely arise as the U. S. Environmental Protection Agency proceeds with implementation of Title III of the clean Air Act Amendments of 1990. Data generated during the program will provide utilities with the technical and economic information necessary to reliably evaluate various air toxics emissions compliance options such as fuel switching, coal cleaning, and flue gas treatment. The development work is being carried out using B{ampersand}W`s new Clean Environment Development Facility (CEDF) wherein air toxics emissions control strategies can be developed under controlled conditions, and with proven predictability to commercial systems. Tests conducted in the CEDF will provide high quality, repeatable, comparable data over a wide range of coal properties, operating conditions, and emissions control systems. The specific objectives of the project are to: (1) measure and understand the production and partitioning of air toxics species for a variety of steam coals, (2) optimize the air toxics removal performance of conventional flue gas cleanup systems (ESPs, baghouses, scrubbers), (3) develop advanced air toxics emissions control concepts, (4) develop and validate air toxics emissions measurement and monitoring techniques, and (5) establish a comprehensive, self- consistent air toxics data library. Development work is currently concentrated on the capture of mercury, fine particulate, and a variety of inorganic species such as the acid gases (hydrogen chloride, hydrogen fluoride, etc.).

  19. Advanced Emissions Control Development Program. Quarterly Technical Progress Report {number_sign}5 for the period October 1 to December 31, 1995

    SciTech Connect

    Farthing, George A.

    1996-12-31

    Babcock {ampersand} Wilcox (B{ampersand}W) is conducting a five year project aimed at the development of practical, cost- effective strategies for reducing the emissions of hazardous air pollutants (commonly called air toxics) from coal-fired electric utility plants. The need for air toxic emissions controls will likely arise as the U. S. Environmental Protection Agency proceeds with implementation of Title III of the Clean Air Act Amendments of 1990. Data generated during the program will provide utilities with the technical and economic information necessary to reliably evaluate various air toxics emissions compliance options such as fuel switching, coal cleaning, and flue gas treatment. The development work is being carried out using B&W`s new Clean Environment Development Facility (CEDF) wherein air toxics emissions control strategies can be developed under controlled conditions, and with proven predictability to commercial systems. Tests conducted in the CEDF will provide high quality, repeatable, comparable data over a wide range of coal properties, operating conditions, and emissions control systems. The specific objectives of the project are to: (1) measure and understand the production and partitioning of air toxics species for a variety of steam coals, (2) optimize the air toxics removal performance of conventional flue gas cleanup systems (ESPs, baghouses, scrubbers), (3) develop advanced air toxics emissions control concepts, (4) develop and validate air toxics emissions measurement and monitoring techniques, and (5) establish a comprehensive, self-consistent air toxics data library. Development work is currently concentrated on the capture of mercury, fine particulate, and a variety of inorganic species such as the acid gases (hydrogen chloride, hydrogen fluoride, etc.).

  20. Clean, premium-quality chars: Demineralized and carbon enriched. Technical report, December 1, 1992--February 28, 1993

    SciTech Connect

    Smith, G.V.; Malhotra, V.M.; Wiltowski, T.; Myszka, E.; Banerjee, D.

    1993-05-01

    The overall objective of this two-year project is to evaluate methods of preparing demineralized and carbon enriched chars from Illinois Basin coals. There are two processing steps: physical cleaning of the coal and devolatilization under different environments to form chars. Two different techniques were used: BET surface area analyzer and in-situ Diffuse Reflectance FTIR. Experiments were performed with coals IBC-101, 102, and 104 as received and after cleaning. It was found that the cleaning not only removes the minerals but has changed also the porous structure of the coals. DR-FTIR spectrums helped to explain the possible existing chemical bonds in the coal structure as well as their changes during drying and mild pyrolysis.

  1. Fine particle clay catalysts for coal liquefaction. Quarterly technical progress report, February 9, 1992--May 8, 1992

    SciTech Connect

    Olson, E.S.

    1995-10-01

    An investigation of new methods for the production of iron-pillared clay catalysts and clay-supported iron hydroxyoxide catalysts and the determination of their catalytic activities was continued in this quarter. Previous work in this project showed that a catalyst prepared by adding ferric nitrate and ammonia to an acid-washed clay gave an active catalyst following sulfidation. Further testing of this catalyst with a model compound showed that its hydrocracking activity was considerably lower when used in 10% concentration rather than 50%. In contrast, the mixed iron/alumina pillared clay catalysts were still highly effective at 10% concentration and gave good conversions at one and two hour reaction times. An investigation of preparation methods demonstrated that calcination of both the iron hydroxyoxide-impregnated clay and the mixed iron/alumina pillared clays is essential for activity. High activity was obtained for these catalysts only when they were removed from the aqueous media rapidly, dried, and calcined. The use of ferric sulfate to prepare a clay-supported sulfated iron catalyst was attempted, the resulting catalyst was relatively inactive for hydrocracking. Several new catalysts were synthesized with the idea of decreasing the pillar density and thereby increasing the micropore volume. A zirconia-pillared clay with low pillar density was prepared and intercalated with triiron complex. The hydrocracking activity of this catalyst was somewhat lower than that of the mixed alumina/iron-pillared catalyst. Other new catalysts, that were prepared by first pillaring with an organic ammonium pillaring agent, then introducing a lower number of silica or alumina pillars, and finally the iron component, were also tested. The mixed alumina/iron-pillared catalysts was further tested at low concentration for pyrene hydrogenating and hydrocracking activities.

  2. Superior catalysts for selective catalytic reduction of nitric oxide. Quarterly technical progress report, 1 January 1994--31 March 1994

    SciTech Connect

    Chen, J.P.; Cheng, L.S.; Hausladen, M.C.; Kikkinides, E.S.; Yang, R.T.

    1994-05-01

    During the past quarter, progress has been made in four tasks as summarized below: Task 1: A delaminated Fe{sub 2}O{sub 3} pillared clay was synthesized and carefully characterized. The chemical composition was measured by ICP atomic emission spectrometry. The structural changes in the clay as well as the iron oxide particle sizes were characterized by X-ray diffraction techniques. Task 2: The Selective Catalytic Reduction (SCR, i.e., NO reduction with NH{sub 3}) activities of the delaminated pillared clay were tested and compared with four other most active SCR catalysts: a commercial V{sub 2}O{sub 5} + WO{sub 3}/TiO{sub 2} catalyst, a Fe{sub 2}O{sub 3}-pillared clay, and two supported Fe{sub 2}O{sub 3} catalysts (on Al{sub 2}O{sub 3} and TiO{sub 2}). The delaminated Fe{sub 2}O{sub 3} pillared clay exhibited the highest SCR activities. Catalyst stability test showed that the delaminated sample was also stable. Task 3: To further increase the SCR activity of the delaminated pillared clay, Cr{sub 2}O{sub 3} was doped as a promoter by incipient wetness. Task 4: Deactivation effects of SO{sub 2} and H{sub 2}O on the SCR activities of the delaminated Fe{sub 2}O{sub 3} pillared clay were studied, and compared with other SCR catalysts. The delaminated clay catalyst showed the least deactivation.

  3. Near-neutral oxidation of pyrite in coal slurry solids. [Quarterly] technical report, September 1--November 30, 1994

    SciTech Connect

    Frost, J.K.; Dreher, G.B.

    1994-12-31

    In this research project we plan to determine the rate of oxidation of pyrite associated with coaly particles (coal slurry solid) when the pH of the surrounding environment is held at approximately 7.8. Coaly particles that contain pyrite are generated during the preparation of Illinois Basin coal for market. These particles are discharged to an impoundment, which eventually must be reclaimed. The purpose for reclamation is either to prevent the generation of acidic solution as the pyrite in the coal slurry solid reacts with air, or to prevent the migration of the acidic solution to a groundwater aquifer. The reclamation is usually accomplished by covering the impoundment with a four-foot-thick layer of topsoil. One possible alternative method for reclamation of a coal slurry impoundment is to mix in alkaline residue from the fluidized-bed combustion of coal. This codisposal would slow the production of acid and would also neutralize any acid produced. If the codisposal method is found to be environmentally acceptable, it will save the coal mining companies part of their cost of reclamation, and also provide a safe and useful disposal outlet for a portion of the residue that is generated by the fluidized-bed combustion of coal. During this quarter we purchased and set up two automatic titrators, which will be used in determining the rate of pyrite oxidation at nearly neutral pH. The titrators will provide a means for maintaining the pH at the desired level. The rate at which sulfate ion is produced as a result of pyrite oxidation will be used to measure the amount of pyrite oxidized over time.

  4. Studies of incipient oxidation of pyrite for improved rejection. Fifth quarterly technical progress report, October 1, 1993--December 31, 1993

    SciTech Connect

    Yoon, R.H.; Richardson, P.E.

    1993-12-31

    Oxidation of fresh surfaces of coal- and mineral-pyrite has been studied using electrochemical and photoelectrochemical techniques. This work was undertaken to better understand the oxidation processes that cause self-induced flotation of pyrite. Fresh surfaces were created by fracturing pyrite in situ, i.e., in solution. Chronoamperometry was used to determine the potential at which a newly created surface does not show oxidation or reduction currents. The ``stable`` potentials for pyrite are {minus}0.28 V (SHE) at pH 9.2 and 0 V at pH 4.6. Subsequent cyclic voltammograms show the incipient oxidation mechanism that involves the formation of sulfur products, which are believed to be hydrophobic. It is shown that the lower flotation edge of pyrite coincides with its incipient oxidation potential. The photocurrent generated at fractured pyrite surfaces by chopped illumination was used to determine the semiconducting characteristics of the electrodes. The results indicate that a spontaneous depletion layer is formed on the fresh surfaces of n-type pyrite. The depletion layer is attributed to an intrinsic, acceptor-like surface state. Charge storage in this surface state pins the band edges over a wide potential range, accounting for the metallic-like electrochemical behavior that has been reported for pyrite. The existence of an intrinsic surface state is consistent with XPS studies on pyrite surfaces prepared in vacuum, which reveal an FeS-like species in the surface region. During this report period, all of the data previously obtained has been analyzed in an attempt to better understand the mechanism of pyrite flotation with respect to its oxidation. The results of this analysis are included in this quarterly report. In addition, samples of pyrite from seven different sources were obtained. In situ fracture, photoelectrochemical and cyclic voltammetry studies have been conducted on electrodes made from these pyrites.

  5. Fine particle clay catalysts for coal liquefaction. Quarterly technical progress report, November 9, 1991--February 8, 1992

    SciTech Connect

    Olson, E.S.

    1995-10-01

    The investigation of methods for the production and testing of iron-pillared clay catalysts was continued in this quarter. The surface area of the mixed alumina/iron pillared clay catalyst decreased to 51 m{sup 2}/g on sulfidation. Thus the stability of the alumina pillars during the sulfidation and thermal treatments prevented the total collapse that occurred in the case of the iron-pillared clays. Previously the mixed alumina/iron pillared clays were tested for hydrocracking activities with bibenzyl. This testing was extended to a determination of activity with a second model compound substrate (pyrene), representative of the polynuclear aromatic systems present in coal. Testing of the mixed alumina/iron-pillared catalysts with 1-methylnaphthalene gave interesting results that demonstrate shape selectivity. The clay-supported iron hydroxyoxide catalysts prepared by impregnation of iron species on acidic clays were further investigated. Sulfidation of these catalysts using the carbon disulfide in situ method gave hydrocracking activities with bibenzyl that were somewhat less than those obtained by presulfidation with H{sub 2}/H{sub 2}S mixtures. Liquefaction of Wyodak subbituminous coal was very successful with the iron impregnated clay catalyst, giving a highly soluble product. High conversions were also obtained with the mixed alumina/iron-pillared clay catalyst, but the yield of oil-solubles was considerably lower. Several new catalysts were synthesized with the idea of decreasing the pillar density and thereby increasing the micropore volume. These catalysts were prepared by first pillaring with an organic ammonium pillaring agent, then introducing a lower number of silica or alumina pillars. Finally the iron component was added either before or after thermal removal of organic pillars.

  6. Controlling incipient oxidation of pyrite for improved rejection. Technical progress report for the ninth quarter, October 1--December 31, 1994

    SciTech Connect

    Yoon, R.H.; Richardson, P.E.

    1995-07-01

    The major objectives of this work are (1) to determine the Eh-pH conditions under which pyrite is stable, (2) to determine the mechanism of the initial stages of pyrite oxidation, and (3) to determine if the semi-conducting properties of pyrite effects its oxidation behavior. It is known that moderate oxidation of pyrite produces a hydrophobic surface product. This hydrophobic product makes it extremely difficult to depress pyrite in coal flotation circuits. The eventual objective of this work is to prevent pyrite oxidation in order to better depress pyrite in coal flotation circuits. It has been shown that by holding the potential of pyrite at its stable potential during fracture, pyrite undergoes neither oxidation nor reduction. It has also been found that fresh pyrite surfaces created by fracture in an electrochemical begin to oxidize at potentials that are about 200 mV more negative than the potentials reported in the literature for pyrite oxidation. This report period, electrochemical impedance spectroscopy (EIS) studies were continued. As discussed in the seventh quarterly progress report, the impedance of pyrite does not show the characteristics expected for either semi-conducting or metallic electrodes. Additional studies were conducted to confirm the anomalous impedance behavior. For this purpose, freshly fractured surfaces were progressively polished on 600 and 1,200 grit silicon carbide paper, and with 0.3 {micro} {alpha}-alumina and 0.05 {micro} {gamma}-alumina micropolish. Polishing is known to introduce defects in the lattice structure of semi-conducting electrodes and it was anticipated that the defects would effect the interfacial capacitance.

  7. Fine particle clay catalysts for coal liquefaction. Quarterly technical progress report, May 9, 1992--August 8, 1992

    SciTech Connect

    Olson, E.S.

    1995-10-01

    An investigation of new methods for the production of mixed pillared clay catalysts and clay-supported catalysts and determination of their catalytic activities were continued in this quarter. To demonstrate the reproducibility of the preparative method for high activity iron/alumina-pillared montmorillonite catalysts, a new batch of the catalyst was prepared and tested for hydrocracking activity with bibenzyl. This preparation gave conversion and product distribution similar to that reported previously. The mixed iron/alumina-pillared clay was also prepared using a pillaring solution that was aged for longer period of time. To determine the importance of the type of pillaring support in hydrocracking activity, iron/zirconia-pillared montmorillonite was prepared using the same technique as that for iron/alumina-pillared montmorillonite. The reaction of bibenzyl with the sulfided iron/zirconia-pillared catalyst gave a lower hydrocracking conversion than the iron/alumina-pillared catalyst. Addition of a second catalytic metal to the clay support was attempted to determine if a synergistic effect could improve liquefaction. Ferric nitrate and stannous chloride were added to the clay, but the resulting catalyst was relatively poor for hydrocracking and hydrogenation compared with ferric nitrate supported on the clay. New disposable iron catalysts with high acidity and surface area are desired for coal liquefaction. Synthetic iron aluminosilicates were prepared by methods similar to those used for the nickel-substituted synthetic mica montmorillonite (NiSMM) catalysts, which are very effective for hydrogenation and reforming of hydrocarbons. The iron aluminosilicate catalysts were tested for hydrocracking and hydrogenation of bibenzyl, naphthalene and pyrene. Pyrene hydrogenation was effectively catalyzed by the sulfided synthetic iron catalyst.

  8. A characterization and evaluation of coal liquefaction process streams. Quarterly technical progress report, October 1--December 31, 1994

    SciTech Connect

    Robbins, G.A.; Brandes, S.D.; Winschel, R.A.; Burke, F.P.

    1995-05-01

    The objectives of this project are to support the DOE direct coal liquefaction process development program and to improve the useful application of analytical chemistry to direct coal liquefaction process development. Independent analyses by well-established methods will be obtained of samples produced in direct coal liquefaction processes under evaluation by DOE. Additionally, analytical instruments and techniques which are currently underutilized for the purpose of examining coal-derived samples will be evaluated. The data obtained from this study will be used to help guide current process development and to develop an improved data base on coal and coal liquids properties. A sample bank will be established and maintained for use in this project and will be available for use by other researchers. The reactivity of the non-distillable resids toward hydrocracking at liquefaction conditions (i.e., resid reactivity) will be examined. From the literature and data experimentally obtained, a mathematical kinetic model of resid conversion will be constructed. It is anticipated that such a model will provide insights useful for improving process performance and thus the economics of direct coal liquefaction. During this quarter, analyses were completed on 65 process samples from representative periods of HRI Run POC-2 in which coal, coal/plastics, and coal/rubber were the feedstocks. A sample of the oil phase of the oil/water separator from HRI Run POC-1 was analyzed to determine the types and concentrations of phenolic compounds. Chemical analyses and microautoclave tests were performed to monitor the oxidation and measure the reactivity of the standard coal (Old Ben Mine No. 1) which has been used for the last six years to determine solvent quality of process oils analyzed in this and previous DOE contracts.

  9. A characterization and evaluation of coal liquefaction process streams. Quarterly technical progress report, July 1--September 30, 1995

    SciTech Connect

    Robbins, G.A.; Brandes, S.D.; Winschel, R.A.; Burke, F.P.

    1995-12-01

    The objectives of this project are to support the DOE direct coal liquefaction process development program and to improve the useful application of analytical chemistry to direct coal liquefaction process development. Independent analyses by well-established methods will be obtained of samples produced in direct coal liquefaction processes under evaluation by DOE. Additionally, analytical instruments and techniques which are currently underutilized for the purpose of examining coal-derived samples will be evaluated. The data obtained from this study will be used to help guide current process development and to develop an improved data base on coal and coal liquids properties. A sample bank will be established and maintained for use in this project and will be available for use by other researchers. The reactivity of the non-distillable resids toward hydrocracking at liquefaction conditions (i.e., resid reactivity) will be examined. From the literature and data experimentally obtained, a mathematical kinetic model of resid conversion will be constructed. It is anticipated that such a model will provide insights useful for improving process performance and thus the economics of direct coal liquefaction. Some of the contract activities for this quarter are: We completed many of the analyses on the 81 samples received from HTI bench-scale run CMSL-9, in which coal, coal/mixed plastics, and coal/high density polyethylene were fed; Liquid chromatographic separations of the 15 samples in the University of Delaware sample set were completed; and WRI completed CP/MAS {sup 13}C-NMR analyses on the Delaware sample set.

  10. Transition metal catalysis of hydrogen shuttling in coal liquefaction. Quarterly technical progress report, September 1, 1985-November 30, 1985

    SciTech Connect

    Eisch, J.J.

    1986-01-01

    The ultimate objective of this research is to uncover new catalytic processes for the liquefaction of coal and for upgrading coal-derived fuels by removing undesirable organosulfur, organonitrogen and organooxygen constituents. Basic to both the liquefaction of coal and the purification of coal liquids is the transfer of hydrogen from such sources as dihydrogen, metal hydrides or partially reduced aromatic hydrocarbons to the extensive aromatic rings in coal itself or to aromatic sulfides, amines and ethers. Accordingly, this study is exploring how such crucial hydrogen-transfer processes might be catalyzed by soluble, low-valent transition metal complexes under moderate conditions of temperature and pressure. During the fifth quarter of this three-year grant the following phases of this study received particular attention: (a) the principal investigator completed his three-month period as visiting scientist at Cornell University, October 1 to December 31, 1985, with Professor Roald Hoffmann on the topic of Extended Hueckel Molecular Orbital calculations of organometallic structure; (b) final gas evolution studies between LiAlH/sub 4/ and bipyridyl(1,5-cyclooctadiene) nickel have been made and the related manuscript written for publication; (c) gas evolution studies between diisobutylaluminum hydride and phosphine complexes of Pt(0) and Ni(0) have been undertaken, as part of our trying to understand how powerful reducing agents can be generated from such combinations; (d) hydrogen shuttling studies continue between dihydroaromatic hydrocarbons and Ni(0) complexes; (e) studies on the cleavage of benzylic C-C bonds by Ni(0) and Cr(0) complexes are being intensified; and (f) attempts are being made to isolate crystalline samples of several organonickel intermediates in the foregoing cleavage reactions, so that x-ray structure determinations can be carried out.

  11. A coal-fired combustion system for industrial process heating applications. Quarterly technical progress report, July 1993--September 1993

    SciTech Connect

    Not Available

    1993-10-30

    This advanced combustion system research program is for the development of innovative coal-fired process heaters which can be used for high temperature melting, smelting and waste vitrification processes. The process heater systems to be developed have multiple use applications; however, the Phase 3 research effort is being focused on the development of a process heater system to be used for producing value added vitrified glass products from boiler/incinerator ashes and industrial wastes. The primary objective of the Phase 3 project is to develop and integrate all the system components, from fuel through total system controls, and then test the complete system in order to evaluate its potential marketability. During the past quarter, the major effort was completing some of the system modification installation designs, completing industry funded testing, developing a surrogate TSCA ash composition, and completing the TSCA ash Test Plan. The installation designs will be used for the equipment modifications planned for the end of CY 93. The industry funded testing consisted of vitrifying Spent Aluminum Potliner (SPL) which is a listed hazardous waste. This testing has verified that SPL can be vitrified into a safe, recyclable glass product. Some results from this testing are provided in Section 2.2.1. The surrogate TSCA ash composition was developed with input from various DOE laboratories and subcontractors. The surrogate ash consists of a mixture of MSW fly ash and bottom ash spiked with heavy metal contaminants. The levels of metal additives are sufficient to ascertain the partitioning of the contaminants between the glass and effluent flow streams. Details of the surrogate composition and the planned testing is provided in Section 4.2.2.

  12. Particulate hot gas stream cleanup technical issues: Task 1.0, Assessment of ash characteristics. Quarterly report, October-- December 1994

    SciTech Connect

    1995-03-01

    This is the first in a series of quarterly reports describing the activities performed under Task 1. The analyses of Hot Gas Stream Cleanup (HGCU) ashes and descriptions of filter performance presented in this report were designed to address the problems with filter operation that are apparently linked to the characteristics of the collected ash. This task is designed to generate a data base of the key characteristics of ashes collected from operating advanced particle filters (APF`s) and to relate these ash properties to the operation and performance of these filters and their components. Observations of the filter assembly during site visits to the Tidd Demonstration Plant APF have led to the conclusion that that tenacious ash deposits that form in the APF apparently induce stresses that result in bent and/or broken ceramic candle filter elements. A site visit, was made to the Tidd APF on October 27, 1994 to collect ash samples from various locations in the filter vessel and to document the condition of the APF. A variety of laboratory analyses were performed on ash samples collected during this site visit to assess whether recent attempts to introduce larger particles into the ash deposits by derating the cyclone upstream of the APF have been successful. Some particles larger than 45 Jim were identified in various ash samples from the APF, but they account for less than 5 % of the mass of the ash. Although Scanning Electron Microscope EDX spectra and elemental maps lack the resolution to identify the bonds between particles in the ash agglomerates found in the APF, an excellent stereographic image of the structure of an ash nodule collected from the APF was generated with the Scanning Electron Microscope. The stereographic image was very enlightening as to the structure of the nodule.

  13. Vhf EPR quantitation and speciation of organic sulfur in coal. [Quarterly] technical report, December 1, 1993--February 28, 1994

    SciTech Connect

    Clarkson, R.B.; Belford, R.I.

    1994-06-01

    The existence of free electrons in coals` natural site offers a great attraction for Electron Paramagnetic Resonance (EPR) analysis to aid in the study of the structure and composition of coal. This direct and non-destructive approach to coal analysis has been hindered by the problem of resolution using the conventional 9.5 GHz EPR spectrometers. In the past few years, we have developed techniques including W-band Very High Frequency EPR spectroscopy as a means of determining the quantity and structure of organic sulfur in native and desulfurized coals. The state of the art 95 GHz (W-band) EPR spectrometer which we have constructed shows a well resolved spectrum including the interaction between unpaired electrons and the heteroatom like sulfur. The spectra also provide quantitative as well as qualitative information regarding different sulfur species. In collaboration with researchers at the University of Kentucky, we are also analyzing the result of desulfurization techniques on the presence of various sulfur species in coal. In the past, we have tried to synthesize various model compounds comparing their W-band spectra with other models, the predictions of theoretical models, and with the W-band spectra of coal specimens. In this quarter, we have been concentrating our efforts on developing a new standard protocol in handling and preparing the coal samples for EPR measurements to provide a quantitative comparison between the EPR spectra of coal in the natural state and desulfurized. Ten coal samples, both native and desulfurized, have been provided to us. These samples have been run in both laboratories. The simulation of coal EPR spectra has been carried out using several mathematical models. EPR results now are being compared with XANES data.

  14. Low-rank coal research under the UND/DOE cooperative agreement. Quarterly technical progress report, July-September 1983

    SciTech Connect

    Wiltsee, G.A. Jr.

    1983-01-01

    Two long gasification tests were accomplished (66 and 72 hours of slagging operation) this quarter, and the balance of the wastewater needed for the second cooling tower (CT) test (approx. 11,000 gallons) was generated. Eleven thousand gallons of slagging fixed-bed gasifier (SFBG) wastewater were solvent extracted and ammonia stripped (AS) to nominal levels of 160 mg/1 phenol and 600 mg/1 NH/sub 3/. This wastewater is being further treated by activated sludge (AS) and granular activated carbon (GAC) processing to prepare a high quality makeup for the second CT test. Phenol mass balances indicated that > 90 pct of the phenol was stripped from the tower, indicating that previous assumptions of high levels of biodegradation were erroneous. Over 80 pct of the ammonia and about 25 pct of the methanol were also stripped. Data collected during steady state operation of the bench-scale rotating biological contractor indicate complete removal of phenolics and alcohols, and 94 pct removal of BOD. Nitrification also occurred in this unit, with over 30 pct removal of ammonia. Problems due to individual bacteria, present in the biotreated wastewater, passing through the multi-media filter and thus decreasing the carbon adsorption efficiency of the GAC system, have resulted in lower treatment rates than originally anticipated. As a result, to achieve the desired treatment, the contact time of the wastewater with the carbon in the granular activated carbon system has been increased. Since this has decreased the treatment rate, a larger carbon adsorption system has been designed and is presently being constructed.

  15. Responsive copolymers for enhanced petroleum recovery. Quarterly technical progress report, June 22, 1993 through September 22, 1993

    SciTech Connect

    McCormick, C.; Hester, R.

    1993-12-01

    This report summarizes technical progress on advanced copolymer synthesis and characterization of the molecular structure of copolymers to be used to enhanced recovery of petroleum. Polymers examined are acrylamide/acrylamido-3-methylbutanoic acid/N-(4-butyl)phenylacrylamide (AM/AMBA/BPAM) terpolymers, sodium 2-(acrylamido)-2-methylpropanesulfonate and (2-(acrylamido)-2-methylpropyl)trimethylammonium chloride (NaAMPS/AMPTAC) copolymers, AM/NaAMPS/AMPTAC terpolymers, and AM/APS (APS is 2-(1-pyrenylsulfonamido) ethyl acrylamide) copolymers. Polymer associative behavior and polymer solution behavior is characterized.

  16. Production and screening of carbon products precursors from coal. Quarterly technical progress report and key personnel staffing report No. 6, April 1, 1996--June 30, 1996

    SciTech Connect

    1996-07-01

    The main goal of this program is to demonstrate the utility of coal extracts from the West Virginia University (WVU) extraction process as suitable base raw materials for the carbon products encompassed by the Carbon Products Consortium (CPC) team. This quarterly report covers activities during the period from April 1, 1996 through June 30, 1996. The first year of the project ended in February, 1996; however, the WVU research effort has continued on a no-cost extension of the original contract. Samples have been supplied to CPC participants so they could conduct their portions of the project as contracted through ORNL. Progress reports are presented for the following tasks: project planning and administration; consortium administration and reporting; coal extraction; technical/economic evaluation of WVU extraction process; and technology transfer. Previous work has shown that the WVU coal extraction process coupled with hydrotreatment, does have the potential for producing suitable base raw materials for carbon products. Current effort, therefore, involved the screening and evaluation of extracts produced by the WVU Group and recommending appropriate materials for scaleup for subsequent evaluation by Consortium Team members. As part of this program, the activation of the coal extraction residues was investigated for the purpose of producing a useful active carbon. A further task, which was started towards the end of the program, was to fabricate a small graphite artifact using Coke derived from coal extract as the filler and the coal extract itself as a binder. The results of these studies are summarized in this report.

  17. Development and testing of industrial scale, coal fired combustion system, Phase 3. Second quarterly technical progress report, April 1, 1992--June 30, 1992

    SciTech Connect

    Zauderer, B.

    1992-07-10

    In the second quarter of calendar year 1992, work continued on Task 1.1. ``DESIGN MODIFICATIONS TO THE 20 MMBTU/HR AIR COOLED COMBUSTOR AND BOILER COMPONENTS``. This consisted of specifying and designing the changes needed to prepare the 20 MMBtu/hr air cooled combustor at the Tampella boiler house site in Williamsport, PA. In depth review of the technical status of the combustor showed that no major design changes were necessary in order to implement the effort of task 2 testing and part of the task 3 testing. Among the major planned changes eliminated were replacement of the inlet swirl air flow section of the combustor. The major changes undertaken were to improve the coal and sorbent injection into the combustor; refurbishing various components and controls systems such as the stack particle scrubber and temperature probes; automating key elements of the combustor, such as the slag tap, upgrading the computer control and automatic data acquisition; and upgrading the long duration capability of the exit nozzle. To support this effort advanced analytical modeling was used to provide guidance for the design changes. A multi-dimensional computer code was used to analyze the combustor performance for different combustor stoichiometries and geometry. A heat transfer analysis of the exit nozzle was performed to determine the best method of adding cooling capacity to the exit nozzle to allow its use for multi-day, round-the-clock coal testing.

  18. Development of vanadium-phosphate catalysts for methanol production by selective oxidation of methane. Quarterly technical progress report 10, July 1, 1995--September 31, 1995

    SciTech Connect

    McCormick, R.L.

    1995-12-07

    This document is the tenth quarterly technical progress report under Contract No. DE-AC22-92PC92110 {open_quotes}Development of Vanadium-Phosphate Catalysts for Methanol Production by Selective Oxidation of Methane{close_quotes}. Activities focused on testing of additional modified and promoted catalysts and characterization of these materials. Attempts at improving the sensitivity of our GC based analytical systems were also made with some success. Methanol oxidation studies were initiated. These results are reported. Specific accomplishments include: (1) Methane oxidation testing of a suite of catalysts promoted with most of the first row transition metals was completed. Several of these materials produced low, difficult to quantify yields of formaldehyde. (2) Characterization of these materials by XRD and FTIR was performed with the goal of correlating activity and selectivity with catalyst properties. (3) We began to characterize catalysts prepared via modified synthesis methods designed to enhance acidity using TGA measurements of acetonitrile chemisorption and methanol dehydration to dimethyl ether as a test reaction. (4) A catalyst prepared in the presence of naphthalene methanol as a structural disrupter was tested for activity in methane oxidation. It was found that this material produced low yields of formaldehyde which were difficult to quantify. (5) Preparation of catalysts with no Bronsted acid sites. This was accomplished by replacement of exchangeable protons with potassium, and (6) Methanol oxidation studies were initiated to provide an indication of catalyst activity for decomposition of this desired product and as a method of characterizing the catalyst surface.

  19. Development of vanadium-phosphate catalysts for methanol production by selective oxidation of methane. Quarterly technical progress report No. 13, April 1996--June 1996

    SciTech Connect

    McCormick, R.L.; Alptekin, G.O.

    1996-07-30

    This document is the thirteenth quarterly technical progress report under Contract No. DE-AC22-92PC92110 {open_quotes}Development of Vanadium-Phosphate Catalysts for Methanol Production by Selective Oxidation of Methane{close_quotes} and covers the period April-June 1996. The basic premise of this project is that vanadyl pyrophosphate (VPO), a catalyst used commercially in the selective oxidation of butane to maleic anhydride, can be developed as a catalyst for selective methane oxidation. Data supporting this idea include published reports indicating moderate to high selectivity in oxidation of ethane, propane, and pentane, as well as butane. Methane oxidation is a much more difficult reaction to catalyze than that of other alkanes and it is expected that considerable modification of vanadyl pyrophosphate will be required for this application. It is well known that VPO can be modified extensively with a large number of different promoters and in particular that promoters can enhance selectivity and lower the temperature required for butane conversion.

  20. Development of a gas-promoted oil agglomeration process. Quarterly technical progress report, October 1--December 31, 1995

    SciTech Connect

    Wheelock, T.D.

    1996-07-01

    The overall purpose of this research project is to carry out the preliminary laboratory-scale development of a gas-promoted, oil agglomeration process for cleaning coal using model mixing systems. Specific objectives include determining the nature of the gas promotion mechanism, the effects of hydrodynamic factors and key parameters on process performance, and a suitable basis for size scale-up of the mixing system. An investigation of the phenomena which occur during the oil agglomeration of coal particle suspensions showed that the process of agglomeration involves several step which can be identified by changes in agitator torque and by application of optical microscopy. During one of these steps, aggregation of hydrophobic particles and microflocs takes place on the surface of gas bubbles dispersed in the suspension with the result that large flocs or flakes are produced which subsequently evolve into agglomerates. The time required to produce spherical agglomerates appears to be a function of the power input per unit volume with the time decreasing as the power input increases.

  1. Evaluation of hyperbaric filtration for fine coal dewatering. Tenth quarterly technical progress report, January 1, 1995--March 31, 1995

    SciTech Connect

    Parekh, B.K.; Leonard, J.W.; Hogg, R.; Fonseca, A.

    1995-09-01

    The main objectives of the project are to investigate the fundamental aspects of particle-liquid interaction in fine coal dewatering, to conduct laboratory and pilot plant studies on the applicability of hyperbaric filter systems and to develop process conditions for dewatering of fine clean coal to less than 20 percent moisture. The program consist of three phases: Phase I, model development; Phase II, laboratory studies; and Phase III, field testing. The Pennsylvania State University is leading efforts in Phase I, the University of Kentucky in Phase II, and Consol Inc. in Phase III of the program. All three organizations are involved in-all the three phases of the program. The Pennsylvania State University is developing a theoretical model for hyperbaric filtration systems, whereas the University of Kentucky is conducting experimental studies to investigate fundamental aspects of particle-liquid interaction and application of high pressure filter in fine coal dewatering. The optimum filtration conditions identified in Phase I and II will be tested in a Consol Inc. coal preparation plant using an Andritz Ruthner portable hyperbaric filtration unit. Accomplishments are discussed for all three phases of study.

  2. Evaluation of hyperbaric filtration for fine coal dewatering. Ninth quarterly technical progress report, October 1--December 31, 1994

    SciTech Connect

    Parekh, B.K.; Leonard, J.W.; Hogg, R.; Fonesca, A.

    1995-04-01

    The main objectives of the project are to investigate the fundamental aspects of particle-liquid interaction in fine coal dewatering, to conduct laboratory and pilot plant studies on the applicability of hyperbaric filter systems and to develop process conditions for dewatering of fine clean coal to less than 20% moisture. The program consists of three phases, namely: model development; laboratory studies; and field testing. The Pennsylvania State University is leading efforts in Phase 1, the University of Kentucky in Phase 2, and Consol Inc. in Phase 3 of the program. The Pennsylvania State University is developing a theoretical model for hyperbaric filtration systems, whereas the University of Kentucky is conducting experimental studies to investigate fundamental aspects of particle-liquid interaction and application of high pressure filter in fine coal dewatering. The optimum filtration conditions identified in Phase 1 and 2 will be tested in a Consol Inc. coal preparation plant using an Andritz Ruthner portable hyperbaric filtration unit. Results to date from all three phases are discussed.

  3. Bench-scale testing of the micronized magnetite process. Fifth quarterly technical progress report, July 1995--September 1995

    SciTech Connect

    1995-10-11

    The major focus of the project, which is scheduled to occur through January 1996, will be to install and test a 500{number_sign}/hr. fine coal-cleaning circuit at DOE`s Process Research Facility (PRF), located at the Pittsburgh Energy Technology Center (PETC). The circuit will utilize an extremely fine, micron-sized magnetite media and small diameter cyclones to make efficient density separations on minus-28-Mesh coal. The main accomplishments of Custom Coals and the project subcontractors, during this period, included: continued purchasing small equipment and supplies for the circuit; procured a 46-ton sample of Lower Kittanning ``B`` Seam coal; completed eight primary integrated tests (PIT {number_sign}1--{number_sign}8) using the Pittsburgh No. 8 seam and the Grade-K and Grade-L magnetites; completed classifying cyclone tests using the Pittsburgh No. 8 and Lower Kittanning seams using a larger (0.5 inch) apex; completed data analysis on the four Grade-K magnetite ``closed-loop`` heavy-media cyclone tests; obtained a finer third grade of magnetite (Grade-M) with a MVD of approximately 3 microns; presented paper on the Micro- Mag project at the Coal Preparation, Utilization and Environmental Control Contractors Conference and a Poster Board Paper on the Micro- Mag Project at the Pittsburgh Coal Conference; and developed a method to modify all 5 Micro-Mag magnetic separators to approximately one third of their present size to better approximate commercial operation.

  4. Improvement of storage, handling, and transportability of fine coal. Quarterly technical progress report number 8, October 1--December 31, 1995

    SciTech Connect

    1996-03-15

    The Mulled Coal process was developed as a means of overcoming the adverse handling characteristics of wet fine coal without thermal drying. The process involves the addition of a low cost, harmless reagent to wet fine coal using off-the-shelf mixing equipment. Based on laboratory- and bench-scale testing, Mulled coal can be stored, shipped, and burned without causing any of the plugging, pasting, carryback and freezing problems normally associated with wet coal. On the other hand, Mulled Coal does not cause the fugitive and airborne dust problems normally associated with thermally dried coal. The objectives of this project are to demonstrate that: the Mulled Coal process, which has been proved to work on a wide range of wet fine coals at bench scale, will work equally well on a continuous basis, producing consistent quality, and at a convincing rate of production in a commercial coal preparation plant; the wet product from a fine coal cleaning circuit can be converted to a solid fuel form for ease of handling and cost savings in storage and rail car transportation; and a wet fine coal product thus converted to a solid fuel form, can be stored, shipped, and burned with conventional fuel handling, transportation, and combustion systems.

  5. Bench-scale demonstration of hot-gas desulfurization technology. Quarterly technical progress report, July 1, 1993--September 30, 1993

    SciTech Connect

    Not Available

    1993-12-31

    The US Department of Energy (DOE), Morgantown Energy Technology Center (METC), is sponsoring research in advanced methods for controlling contaminants in hot coal gasifier gas (coal gas) streams of integrated gasification combined-cycle (IGCC) power systems. The programs focus on hot-gas particulate removal and desulfurization technologies that match or nearly match the temperatures and pressures of the gasifier, cleanup system, and power generator. The purpose is to eliminate the need for expensive heat recovery equipment, reduce efficiency losses due to quenching, and minimize wastewater treatment costs. Hot-gas desulfurization research has focused on regenerable mixed-metal oxide sorbents which can reduce the sulfur in coal gas to less than 20 ppmv and can be regenerated in a cyclic manner with air for multicycle operation. Zinc titanate (Zn{sub 2}TiO{sub 4} or ZnTiO{sub 3}), formed by a solid-state reaction of zinc oxide (ZnO) and titanium dioxide (TiO{sub 2}), is currently the leading sorbent. The sulfidation/regeneration cycle can be carried out in fixed-bed, moving-bed, or fluidized-bed reactor configuration, and all three types of reactors are slated for demonstration in the DOE Clean Coal Technology program. The fluidized-bed reactor configuration is most attractive because of several potential advantages including faster kinetics and the ability to handle the highly exothermic regeneration to produce a regeneration offgas containing a constant concentration of SO{sub 2}.

  6. Sour gas plant subsurface remediation technology research and demonstration project. Quarterly technical progress report, January 1, 1994--March 31, 1994

    SciTech Connect

    Stepan, D.J.; Kuehnel, V.

    1994-04-01

    Recognizing the potential impacts of sour gas plant operations on the subsurface environment, the Canadian Association of Petroleum Producers (CAPP), formerly the Canadian Petroleum Association (CPA), and Environment Canada initiated a multiphase study focusing on research related to the development and demonstration of remedial technologies for soil and groundwater contamination at these facilities. The first phase of the project was completed in 1990, and consisted of a comprehensive review of all soil and groundwater monitoring data submitted to Alberta Environment by sour gas plants in accordance with the Clean Water Act (1980). That review indicated that all but one of the 45 sour gas plants for which data were available exhibited some form of impact on soil and groundwater quality. The study identified the most frequently occurring contamination situations at the sites and classified them by source, type of contaminant, and the hydrogeological characteristics of the contaminated setting. The project steering committee subsequently selected the Strachan Gas Plant, located near Rocky Mountain House, Alberta, Canada, as a field research and remediation technology demonstration site. Research to be performed under this agreement is for activities in the areas of soil vapor extraction (SVE), bioventing, and bioremediation, all focusing on residual contamination in the unsaturated, or vadose, zone at the site, as well as evaluations of biological treatment of groundwater and ex situ soil remediation using solvent extraction in conjunction with photooxidation, solvent extraction in conjunction with microwave irradiation, and low-temperature thermal desorption.

  7. Refining and end use study of coal liquids. Second quarter 1995 technical progress report, April--June 1995

    SciTech Connect

    1995-12-01

    Bechtel, with Southwest Research Institute, Amoco Oil R&D, and the M.W. Kellogg Co. as subcontractors, initiated a study on November 1, 1993, for the U.S. Department of Energy`s (DOE`s) Pittsburgh Energy Technology Center (PETC) to determine the most cost effective and suitable combination of existing petroleum refinery processes needed to make specification transportation fuels or blending stocks, from direct and indirect coal liquefaction product liquids. This 47-month study, with an approved budget of $4.4 million dollars, is being performed under DOE Contract Number DE-AC22-93PC91029. A key objective is to determine the most desirable ways of integrating coal liquefaction liquids into existing petroleum refineries to produce transportation fuels meeting current and future, e.g. year 2000, Clean Air Act Amendment (CAAA) standards. An integral part of the above objectives is to test the fuels or blends produced and compare them with established ASTM fuels. The comparison will include engine tests to ascertain compliance of the fuels produced with CAAA and other applicable fuel quality and performance standards. The final part of the project includes a detailed economic evaluation of the cost of processing the coal liquids to their optimum products.

  8. Development of a video-based slurry sensor for on-line ash analysis. Fifth quarterly technical progress report, October 1, 1995--December 31, 1995

    SciTech Connect

    Adel, G.T.; Luttrell, G.H.

    1996-01-29

    Automatic control of fine coal cleaning circuits has traditionally been limited by the lack of sensors for on-line ash analysis. Although several nuclear-based analyzers are available, none have seen widespread acceptance. This is largely due to the fact that nuclear sensors are expensive and tend to be influenced by changes in seam type and pyrite content. Recently, researchers at VPI&SU have developed an optical sensor for phosphate analysis. The sensor uses image processing technology to analyze video images of phosphate ore. It is currently being used by PCS Phosphate for off-line analysis of dry flotation concentrate. The primary advantages of optical sensors over nuclear sensors are that hey are significantly cheaper, are not subject to measurement variations due to changes in high atomic number materials, are inherently safer and require no special radiation permitting. The purpose of this work is to apply the knowledge gained in the development of an optical phosphate analyzer to the development of an on-line ash analyzer for fine coal slurries. During the past quarter, the current prototype of the on-line optical ash analyzer was subjected to extensive testing at the Middlefork coal preparation plant. Initial work focused on obtaining correlations between ash content and mean gray level, while developmental work on the more comprehensive neural network calibration approach continued. Test work to date shows a promising trend in the correlation between ash content and mean gray level. Unfortunately, data scatter remains significant. Recent tests seem to eliminate variations in percent solids, particle size distribution, measurement angle and light setting as causes for the data scatter; however, equipment warm-up time and number of images taken per measurement appear to have a significant impact on the gray-level values obtained. 8 figs., 8 tabs.

  9. Materials Compatibility and Lubricants Research on CFC-refrigerant substitutes. Quarterly MCLR Program technical progress report, July 1--September 30, 1995

    SciTech Connect

    Szymurski, S.R.; Hourahan, G.C.; Godwin, D.S.; Amrane, K.

    1995-10-01

    The Materials Compatibility and Lubricants Research (MCLR) program supports critical research to accelerate the introduction of CFC and HCFC refrigerant substitutes. The MCLR program addresses refrigerant and lubricant properties and materials compatibility. The primary elements of the work include data collection and dissemination, materials compatibility testing, and methods development. This report summarizes the research conducted during the third quarter of calendar year 1995 on the following projects: Thermophysical properties of HCFC alternatives; Compatibility of manufacturing process fluids with HFC refrigerants and ester lubricants; Compatibility of motor materials used in air-conditioning for retrofits with alternative refrigerants and lubricants; Compatibility of lubricant additives with HFC refrigerants and synthetic lubricants; Products of motor burnouts; Accelerated test methods for predicting the life of motor materials exposed to refrigerant-lubricant mixtures; Investigation of flushing and clean-out methods; Investigation into the fractionation of refrigerant blends; Lean flammability limits as a fundamental refrigerant property; Effect of selected contaminants in AC and R equipment; Study of foaming characteristics; Study of lubricant circulation in systems; Evaluation of HFC-245ca for commercial use in low pressure chillers; Infrared analysis of refrigerant mixtures; Refrigerant database; Refrigerant toxicity survey; Thermophysical properties of HFC-32, HFC-123, HCFC-124 and HFC-125; Thermophysical properties of HFC-143a and HFC-152a; Theoretical evaluations of R-22 alternative fluids; Chemical and thermal stability of refrigerant-lubricant mixtures with metals; Miscibility of lubricants with refrigerants; Viscosity, solubility and density measurements of refrigerant-lubricant mixtures; Electrohydrodynamic enhancement of pool and in-tube boiling of alternative refrigerants; Accelerated screening methods; and more.

  10. Development of a video-based slurry sensor for on-line ash analysis. Fourth quarter technical progress report, July 1--September 30, 1995

    SciTech Connect

    Adel, G.T.; Luttrell, G.H.

    1995-10-20

    Automatic control of fine coal cleaning circuits has traditionally been limited by the lack of sensors for on-line ash analysis. Although several nuclear-based analyzers are available, none have seen widespread acceptance. This is largely due to the fact that nuclear sensors are expensive and tend to be influenced by changes in seam type and pyrite content. Recently, researchers at VPI and SU have developed an optical sensor for phosphate analysis. The sensor uses image processing technology to analyze video images of phosphate ore. It is currently being used by Texasgulf for off-line analysis of dry flotation concentrates. The primary advantages of optical sensors over nuclear sensors are that they are significantly cheaper, are not subject to measurement variations due to changes in high atomic number minerals, are inherently safer and require no special radiation permitting. The purpose of this work is to apply the knowledge gained in the development of an optical phosphate analyzer to the development of an on-line ash analyzer for fine coal slurries. During the past quarter, a study was conducted to determine if monochromatic illumination could be used as a means of enhancing the differences observed between coal and mineral matter under reflected light. After extensive testing, monochromatic illumination was found to provide no advantages over white light. In fact, white light appeared to provide slightly better resolution of ash content. Initial testing of the sample presentation system at the plant site indicated that froth formation in the sample tube was indeed a problem as predicted by Pittston representatives. A slight modification in the design of the tube and a modification in the time required to bring the slurry level into the focal plane of the camera were found to eliminate the frothing problem.

  11. Advanced direct liquefaction concepts for PETC generic units, Phase 2. Quarterly technical progress report, January--March 1996

    SciTech Connect

    1996-05-01

    The aims of this research program are to advance to bench-scale testing, concepts that have the potential for making net reductions in direct coal liquefaction process costs. The research involves a teaming arrangement between the University of Kentucky Center for Applied Energy Research (CAER), Consolidation Coal Company (CONSOL), Sandia National Laboratories (SNL), and LDP Associates. Progress reports are presented for: Task 2.1.1 development of a catalyst screening test (UK/CAER); Task 2.1.2 activation of impregnated catalysts (UK/CAER); Task 2.2 laboratory support (CONSOL); Task 3 continuous operations/parametric studies (Hydrocarbon Technologies, Inc.) and; Task 4.4 conceptual design, preliminary technical assessment (LDP Associates).

  12. Engineering Development of Slurry Bubble Column Reactor (SBCR) Technology: Final quarterly technical progress no. 2, 1 July - 30 September 1995

    SciTech Connect

    Toseland, B.A.; Tischer, R.E.

    1997-12-31

    The major technical objectives of this program are threefold: (1) to develop the design tools and a fundamental understanding of the fluid dynamics of a slurry bubble column reactor to maximize reactor productivity, (2) to develop the mathematical reactor design models and gain an understanding of the hydrodynamic fundamentals under industrially relevant process conditions, and (3) to develop an understanding of the hydrodynamics and their interaction with the chemistries occurring in the bubble column reactor. Successful completion of these objectives will permit more efficient usage of the reactor column and tighter design criteria, increase overall reactor efficiency, and ensure a design that leads to stable reactor behavior when scaling up to large diameter reactors.

  13. Synthesis of oxygenate products for high volume fuels applications. Quarterly technical progress report, November 1, 1994--January 31, 1995

    SciTech Connect

    1995-03-08

    The objective of this project is to develop high yield syntheses of oxygenate products that are liquid at room temperature using as starting materials dimethy ether (DME) or methanol. The identified products include: Dimethyl Carbonate (DMC), 1,1-Dimethoxyethane (DMOE), C{sub 2}{sup +} Alcohols/Ethers (C{sub 2}AE). The technical strategy is outlined below: (A) Synthesis of DMC via oxidative carbonylation of DME instead of methanol. Since this synthesis would not co-produce water as a byproduct, there is a potential for very high DME conversions in contrast to the low (ca 20%) conversions obtained in conventional plants. Technical emphasis will be placed on development of a supported copper catalyst with a capability for cleavage of DME into its chemisorbed organic moieties. (B) Synthesis of 1,1-dimethoxymethane (DMOE) from acetylene/CO/H{sub 2} process streams obtained from commercial methane oxidative pyrolysis processes. In the overall processing scheme the syngas would be converted to DME. The wet acetylene stream would be partially condensed to retain an equivalent of water and then condensed with DME to produce EMOE. (C) Direct conversion of DME or DME/methanol to ethanol/propanol or their methyl ethers. Under the influence of functionalized alcohol condensation catalysts developed exclusively at Amoco it should be possible to achieve direct conversion of dimethyl ether (or methanol) to ethanol/propanol and/or the methyl ethers of these alcohols. Although this reaction is not currently known, a combination of key catalyst components from identified systems should result in a DME conversion catalyst to C{sub 2}+ oxygenates. (D) Reaction of DME or acetylene with synthesis gas (CO/H{sub 2}) or methanol. A variety of catalysts will be tested for conversion of acetylene/CO/H{sub 2} or acetylene/methanol to propylene and conversion of DME/CO/H{sub 2} or DME/methanol to dimenthyoxymethane (DMM) and/or other oxygenates.

  14. Instrumental methods of analysis of sulfur compounds in synfuel process streams. Quarterly technical progress report, October-December 1983

    SciTech Connect

    Jordan, J.; Sexton, E.; Talbott, J.; Yakupkovic, J.

    1984-01-01

    Task 1. Methods development for the speciation of the polysulfides. The contributions of this project to the electrochemical analysis of sulfides and polysulfides are reviewed and summarized. Electrochemical reduction at the dropping mercury electrode (DME) is the method of choice for the determination of polysulfidic sulfur. Total sulfidic sulfur can conveniently be quantitated in mixtures of sulfides and polysulfides, by measuring diffusion currents engendered by the anodic depolarization of the DME in the presence of the moieties HS/sup -/ and S/sub x//sup 2 -/. Task 2. Methods development for the speciation of dithionite and polythionates. In a solvent consisting of 40% ethanol-60% water, electrocapillary curves substantiated the adsorption of ethanol at the dropping mercury electrode. The potentials where adsorption occurred paralleled a shift of 1 volt in the polarographic half potential of the reaction: S/sub 4/O/sub 6//sup 2 -/ + 2e = 2S/sub 2/O/sub 3//sup 2 -/. Task 3. Total accounting of the sulfur balance in representative samples of synfuel process streams. Two H-Coal liquefaction sour water samples were analyzed representing different stages in the PETC clean-up procedures. One specimen was a sample stripped of H/sub 2/S and ammonia; the other, resulting from a different batch, was stripped and subsequently extracted with methyl isobutyl ketone. The stripped effluent contained less than 0.001 M concentrations of sulfide, polysulfide, thiosulfate, and sulfate. On the other hand, sulfate accounted for 90% of the total sulfur present in the stripped and extracted sample; the remainder consisted of sulfidic and polysulfidic sulfur as well as thiosulfate. 13 references, 2 figures, 3 tables.

  15. Studies of incipient oxidation of pyrite for improved rejection. Seventh quarterly technical progress report, April 1, 1994--June 30, 1994

    SciTech Connect

    Yoon, R.H.; Richardson, P.E.

    1994-10-01

    The major objectives of this work are (i) to determine the Eh-pH conditions under which pyrite is stable, (ii) to determine the mechanism of the initial stages of pyrite oxidation, and (iii) to determine if the semiconducting properties of pyrite effects its oxidation behavior. It is known that moderate oxidation of pyrite produces a hydrophobic surface product. This hydrophobic product makes it extremely difficult to depress pyrite in coal flotation circuits. The eventual objective of this work is to prevent pyrite oxidation in order to better depress pyrite in coal flotation circuits. In this work clean, unoxidized pyrite surfaces are being produced by fracturing pyrite electrodes in an electrochemical cell. It has been shown that by holding the potential at different values during fracture and measuring the current passed at fracture, pyrite oxidation or reduction can be precisely controlled, or prevented. It has also been found that fresh pyrite surfaces created by fracture in an electrochemical cell begin to oxidize at potentials that are about 200 mV more negative than the potentials reported in the literature for pyrite oxidation. This is attributed to the fact that most work on pyrite has employed polished electrodes that have pre-existing oxidation products on the surface. Electrochemical reduction and oxidation of these pre-existing products essentially mask the oxidation of pyrite itself. In addition, photocurrent measurements show that freshly fractured pyrite surfaces are charged negatively. This negative charge is believed to result from an intrinsic, acceptor-like surface state. This report period, electrochemical impedance spectroscopy (EIS) has been conducted on pyrite from different sources. In addition, EIS studies have been conducted on an electrode that was first fractured in situ and then polished.

  16. Controlling of incipient oxidation of pyrite for improved rejection. Sixth quarterly technical progress report, January 1, 1994--March 31, 1994

    SciTech Connect

    Yoon, R.H.; Richardson, P.E.

    1994-07-01

    The major objectives of this work are (1) to determine the Eh-pH conditions under which pyrite is stable, (2) to determine the mechanism of the initial stages of pyrite oxidation, and (3) to determine if the semiconducting properties of pyrite affect its oxidation behavior. It is known that moderate oxidation of pyrite produces a hydrophobic surface product. This hydrophobic product makes it extremely difficult to depress pyrite in coal flotation circuits. The eventual objective of this work is to prevent pyrite oxidation in order to better depress pyrite in coal flotation circuits. In this work clean, unoxidized pyrite surfaces are being produced by fracturing pyrite electrodes in an electrochemical cell. It has been shown that by holding the potential at different values during fracture and measuring the current passed at fracture, pyrite oxidation or reduction can be precisely controlled, or prevented. It has also been found that fresh pyrite surfaces, created by fracture in an electrochemical cell, begin to oxidize at potentials that are about 200 mV more negative than the potentials reported in the literature for pyrite oxidation. This is attributed to the fact that most work on pyrite has employed polished electrodes that have preexisting oxidation products on the surface. Electrochemical reduction and oxidation of these preexisting products essentially mask the oxidation of pyrite itselL In addition, photocurrent measurements show that freshly-fractured pyrite surfaces are charged negatively. This negative charge is believed to result from an intrinsic, acceptor-like surface state. This report period, voltammetric and photocurrent studies have been carried out as a function of pH and the photoresponse of pyrites from different sources have been determined.

  17. Controlling incipient oxidation of pyrite for improved rejection. Eighth quarterly technical progress report, July 1, 1994--September 30, 1994

    SciTech Connect

    Yoon, R.H.; Richardson, P.E.

    1994-12-31

    The major objectives of this work are (1) to determine the Eh-pH conditions under which pyrite is stable, (2) to determine the mechanism of the initial stages of pyrite oxidation and (3) to determine if the semi-conducting properties of pyrite effects its oxidation behavior. It is known that moderate oxidation of pyrite produces a hydrophobic surface product. This hydrophobic product makes it extremely difficult to depress pyrite in coal flotation circuits. The eventual objective of this work is to prevent pyrite oxidation in order to better depress pyrite in coal flotation circuits. In this work clean, unoxidized pyrite surfaces are being produced by fracturing pyrite electrodes in an electrochemical cell. It has been shown that pyrite assumes a unique potential referred to as the ``stable potential`` at the instance it is fractured and that this potential is several hundred millivolts more negative than the steady state mixed potential of pyrite. It has also been shown that by holding the potential of pyrite at its stable potential during fracture, pyrite undergoes neither oxidation nor reduction. It has also been found that fresh pyrite surfaces created by fracture in an electrochemical begin to oxidize at potentials that are about 200 mV more negative than the potentials reported in the literature for pyrite oxidation. This is attributed to the fact that most work on pyrite has employed polished electrodes that have pre-existing oxidation products on the surface. The existence of a pH dependent stable potential for freshly fractured pyrite electrodes was based on studies conducted mainly on pyrite from Peru.

  18. Bench-scale demonstration of hot-gas desulfurization technology. Quarterly technical progress report, October 1--December 31, 1993

    SciTech Connect

    Not Available

    1994-04-01

    Research Triangle Institute (RTI) with DOE/METC sponsorship has been developing zinc titanate sorbent technology since 1986. In addition, RTI has been developing the Direct Sulfur Recovery Process (DSRP) with DOE/METC sponsorship since 1988. Fluidized-bed zinc titanate desulfurization coupled to the DSRP is currently the most advanced and attractive technology for sulfur removal/recovery for IGCC systems, and it has recently been proposed in a Clean Coal Technology project. The goal of this project is to continue further development of the zinc titanate desulfurization and DSRP technologies by: scaling up the zinc titanate reactor system; developing an integrated skid-mounted zinc titanate desulfurization-DSRP reactor system; testing the integrated system over an extended period with real coal-gas from an operating gasifier to quantify the degradative effect, if any, of the trace contaminants present in coal gas; developing an engineering database suitable for system scaleup; and designing, fabricating and commissioning a larger DSRP reactor system capable of operating on a six-fold greater volume of gas than the DSRP reactor used in the bench-scale field test. During this reporting period the Construction Permit Application was completed and approved by the Process Safety Committee, and a final revised Application has been submitted to DOE/METC. A draft Test Plan for the field test was formulated. Finally, progress was made in the reactor system fabrication with the submission of purchase orders for nearly all major equipment, and with the final design of the trailer (mobile laboratory).

  19. Projects at the Western Environmental Technology Office. Quarterly technical progress report, July 1, 1995--September 30, 1995

    SciTech Connect

    1996-01-01

    The goal of this project is to demonstrate the technical and economic feasibility of commercializing a biotechnology that uses plants to remediate soils, sediments, surface waters, and groundwaters contaminated by heavy metals and radionuclides. This technology, known as phytoremediation, is particularly suited to remediation of soils or water where low levels of contaminants are widespread. Project objectives are to provide an accurate estimate of the capability and rate of phytoremediation for removal of contaminants of concern from soils and groundwaters at Department of Energy (DOE) sites and to develop data suitable for engineering design and economic feasibility evaluations, including methods for destruction or final disposition of plants containing contaminants of concern. The bioremediation systems being evaluated could be less expensive than soil removal and treatment systems, given the areal extent and topography of sites under consideration and the investment of energy and money in soil-moving and -treating processes. In situ technology may receive regulatory acceptance more easily than ex situ treatments requiring excavation, processing, and replacement of surface soils. In addition, phytoremediation may be viable for cleanup of contaminated waters, either as the primary treatment or the final polishing stage, depending on the contaminant concentrations and process economics considerations.

  20. Advanced liquefaction using coal swelling and catalyst dispersion techniques. Quarterly technical progress report No. 7, April 1993--June 1993

    SciTech Connect

    Curtis, C.W.; Chander, S.; Gutterman, C.

    1994-09-01

    The overall objective of this project is to develop a new approach for the direct liquefaction of coal to produce an all-distillate product slate at a sizable cost reduction over current technology. The approach integrates coal selection, pretreatment, coal swelling with catalyst impregnation, liquefaction, product recovery with characterization, alternate bottoms processing, and carrying out a technical assessment including an economic evaluation. The project is being carried out under contract to the United States Department of Energy. All three coals used in this study (Black Thunder, Burning Star bituminous, and Martin Lake lignite) are effectively swelled by a number of solvents. The most effective solvents are those having hetero-functionality. In addition, a synergistic effect has been demonstrated, in which solvent blends are more effective for coal swelling than the pure solvents alone. Therefore, it will be necessary to use only low levels of swelling agents and yet promote the impregnation of catalyst precursors. The rate of the impregnation of catalyst precursors into swollen coal increases greatly as the effectiveness of the solvent to swell the coal increases. This effect is also demonstrated by improved catalyst precursor impregnation with increased contact temperature. Laboratory- and bench-scale liquefaction experimentation is underway using swelled and catalyst impregnated coal samples. Higher coal conversions were observed for the SO{sub 2}-treated coal than the raw coal, regardless of catalyst type. Conversions of swelled coal were highest when Molyvan-L, molybdenum naphthenate, and nickel octoate, respectively, were added to the liquefaction solvent.

  1. Advanced direct liquefaction concepts for PETC generic units, Phase 2. Quarterly technical progress report for period October--December 1995

    SciTech Connect

    1996-02-01

    Progress reports are presented for: Task 1 management plan; Task 2.1 laboratory support (University of Kentucky/Center for Applied Energy Research); Task 3 continuous operations/parametric studies (Hydrocarbon Technologies, Inc.); Task 4.1 process modeling; and Task 4.4 preliminary technical assessment (LDP Associates). Some of the high points for this period are: the activity of the base catalyst prepared by pressure filtration of the Wilsonville Run 262E V-1082 ashy resid was determined and compared with the conversion of coal in the absence of any added catalyst; this material was found to contain 740 mg Mo/kg; in the catalyst screening test, the pressure filtered solids that had been added to the reaction mixture to a level equivalent to the solids contained in Wilsonville Run 263J gave coal conversion of 98.2% with a resid conversion of 24%; and the effect of presulfiding conditions on activating a Mo-impregnated coal with different H{sub 2}S/H{sub 2} mixtures at different temperatures and reaction times was investigated.

  2. Development of enhanced sulfur rejection processes. Second quarterly technical progress report, January 1, 1993--March 31, 1993

    SciTech Connect

    Yoon, R.H.; Luttrell, G.; Adel, G.; Richardson, P.E.

    1993-06-14

    Research at Virginia Tech led to the development of two complementary concepts for improving the removal of inorganic sulfur from many eastern US coals. These concepts are referred to as Electrochemically Enhanced Sulfur Rejection (EESR) and Polymer Enhanced Sulfur Rejection (PESR). The EESR process uses electrochemical techniques to suppress the formation of hydrophobic oxidation products believed to be responsible for the floatability of coal pyrite. The PESR process uses polymeric reagents that react with pyrite and convert floatable middlings, i.e., composite particles composed of pyrite with coal inclusions, into hydrophilic particles. These new pyritic-sulfur rejection processes do not require significant modifications to existing coal preparation facilities, thereby enhancing their adoptability by the coal industry. It is believed that these processes can be used simultaneously to maximize the rejection of both well-liberated pyrite and composite coal-pyrite particles. The technical research was initiated on October 1, 1992, and a detailed work plan and work schedule were developed. During this reporting period, research was conducted to evaluate the liberation characteristics of various pyrite samples, to determine the electrochemical reactions that influence the hydrophobicity of pyrite, and to examine the potential use of electrochemical methods for controlling the flotation and depression of pyrite.

  3. Improvement of hydrogen solubility and entrainment in hydrocracker feedstocks. Quarterly technical report, January 1, 1995--March 31, 1995

    SciTech Connect

    Kabadi, V.N.

    1995-07-01

    The objective of this project is to determine the conditions for the hydrogen-heavy oil feed preparation so as to optimize the yield of hydrocracking reactions. Proper contacting of hydrogen with heavy oil on the catalytic bed is necessary to improve the yields of the hydrocracking reactions. It is most desirable to have the necessary amount of hydrogen available either in the dissolved or in entrained state, so that hydrogen diffusion to the reaction site does not provide rate controlling resistance to the overall rates of hydrocracking reactions. This project proposes to measure solubility and entrainment data for hydrogen in heavy oils at conditions such as in hydrocrackers, and investigate the improvement of these properties by usage of appropriate additives. Specifically, measurements will be carried out at temperatures up to 300{degrees}C and pressures up to 120 atmospheres. Correlations for solubility and entrainment kinetics will be developed from the measured data, and a method for estimating yield of hydrocracking reactions using these correlations will be suggested. Exxon Research and Engineering Company will serve as private sector collaborator providing A&T with test samples and some technical expertise that will assure successful completion of the project. Results are presented for solubility of hydrogen in hydrocarbons and in heavy petroleum fractions. Comparison with experimental data shows good agreements. It is also demonstrated that the model is easily applied to compute solubility of hydrogen in heavy petroleum fractions with fair degree of accuracy. Detailed results are presented.

  4. Advanced liquefaction using coal swelling and catalyst dispersion techniques. Quarterly technical progress report, January--March 1993

    SciTech Connect

    Curtis, C.W.; Gutterman, C.; Chander, S.

    1993-09-01

    The overall objective of this project is to develop a new approach for the direct liquefaction of coal to produce an all-distillate product slate at a sizable cost reduction over current technology. The approach integrates coal selection, pretreatment, coal swelling with catalyst impregnation, liquefaction, product recovery with characterization, alternate bottoms processing, and carrying out a technical assessment including an economic evaluation. The primary coal of this program, Black Thunder subbituminous coal, can be effectively beneficiated to about 4 wt% ash using aqueous sulfurous acid pretreatment. This treated coal can be further beneficiated to about 2 wt% ash using commercially available procedures. All three coals used in this study (Black Thunder, Burning Star bituminous, and Martin Lake lignite) are effectively swelled by a number of solvents. The most effective solvents are those having hetero-functionality. In addition, a synergistic effect has been demonstrated, in which solvent blends are more effective for coal swelling than the pure solvents alone. Therefore, it will be necessary to use only low levels of swelling agents and yet promote the impregnation of catalyst precursors. The rate of the impregnation of catalyst precursors into swollen coal increases greatly as the effectiveness of the solvent to swell the coal increases.

  5. Advanced turbine design for coal-fueled engines. Quarterly technical report, [July 1, 1989--September 30, 1989

    SciTech Connect

    Not Available

    1989-12-31

    Coal-fueled gas turbines require the development of a number of new technologies which are being identified by METC and its Heat Engines Contractors. Three significant problems, that were Identified early in the development of coal-fueled engines, are the rapid wear of the turbine airfoils due to particulate erosion, the accumulation of deposits on portions of the airfoil surfaces due to slag deposition and the rapid corrosion of airfoils after the breakdown of surface coatings. The technology development study contained in this program is focused on improving the durability of the turbine through the development of erosion and deposition resistant airfoils and turbine operating conditions. The baseline turbine meanline design vas modified to prevent a local shock on the suction side of the rotor airfoil. New particle dimensionless parameters to be varied were determined. Three first-stage turbine meanline designs have been completed. The design of nev turbine airfoil shapes has been initiated. The calculation of particle trajectories has been completed for the baseline turbine vane and blade airfoils. The erosion model described in the previous technical report vas incorporated in the Post Processing Trajectory Analysis Code.

  6. Use of injection wells for refinery waste disposal. Quarterly technical report, January 1, 1997--March 31, 1997

    SciTech Connect

    Paque, M.

    1997-04-30

    The Ground Water Protection Council (GWPC) has had initial discussions with the American Petroleum Institute staff and several major oil companies concerning a project that would address several technical and regulatory issues related to the use of injection wells at refineries. All parties believe that this project has significant potential to save millions of dollars in operational costs by streamlining and improving both state and federal regulations which are now overly redundant and not risk-based. As currently regulated by the United States Environmental Protection Agency (USEPA), injection wells used for refinery related disposal are typically classified as either Class I hazardous or non-hazardous, depending on RCRA classification. The expense of acquiring an operating permit for these types of wells is very high and they have substantially more operational expenses than a typical Class II injection well. The combination of permitting requirements (including a {open_quotes}no-migration{close_quotes} petition), stringent construction requirements, and intensive monitoring and reporting requirements often make these wells uneconomical for otherwise legitimate waste disposal purposes.

  7. Studies of granular flow down an inclined chute. Quarterly technical progress report, 13 June 1992--12 September 1992

    SciTech Connect

    Hanes, D.M.

    1992-12-01

    The driving force for the granular flow in the experimental region is gravity. The vehicle which re-circulates this flow is an 46 cm Corra-Trough belt conveyor manufactured by Buck-El, Inc. A drawing of this conveyor is shown in Figure 3. Entrance and exit chambers were designed to route the flow between the chute and the conveyor. Both devices had to be flexible because the position of the chute relative to the conveyor changes each time the angle of the chute is changed. Finally, to control the entering flow more accurately, an adjustable gate apparatus was constructed. The first step in setting up the chute is angle adjustment. The granular material used in the experiments described in this report are technical quality glass spheres, three millimeters in diameter. These beads are produced by Cataphote, Inc. Cataphote lists the tolerances for the 3mm spheres at {plus_minus}0.2 mm. The average mass of a single bead was measured to be 0.034 g which gives an average measured specific gravity of the glass at 2.42 g/cm{sup 3}.

  8. Improved secondary recovery demonstration for the Sooner Unit. Quarterly technical report, January 1, 1995--March 31, 1995

    SciTech Connect

    1995-05-08

    The objective of this project is to demonstrate the effectiveness of geologically targeted infill drilling and improved reservoir management to obtain maximum oil recovery from the Sooner Unit in the Denver-Julesburg (D-J) Basin. The Sooner Unit Field is located about 100 miles northeast from Denver, Colorado and produces from the fluvial-deltaic Cretaceous {open_quotes}D{close_quotes} Sand formation at an average depth of 6,200 ft. The first phase of the project will involve multi-disciplinary reservoir characterization and recovery identification in which high-density 3-D seismic. detailed stratigraphy and engineering analysis will be used to identify optimum infill well sites and production/withdrawal schedules. One well will be drilled during this phase to obtain data pertinent to seismic activities. The second phase will involve implementation of the selected technologies by drilling geologically targeted infill wells and establishing production/injection schedules. Evaluation of results from the second phase will be performed using reservoir simulation. transient well tests and careful production tests of producing wells. The objective will be to compare the prediction of ultimate recovery resulting from the implementation of these technologies with that which would have occurred in the absence of these technologies. The third phase of the project will involve technology transfer through a series of technical papers and presentations of a short course. Emphasis will be on the economics of the project and implemented technologies. Small to medium sized independents will be targeted. The success of this project and effective technology transfer should prompt-re-appraisal of older waterflood projects and implementation of new projects in oil provinces such as the D-J Basin.

  9. Coal-fired combustion system for industrial process heating applications. Quarterly technical progress report, April 1995--June 1995

    SciTech Connect

    1995-08-01

    PETC has implemented a number of advanced combustion research projects that will lead to the establishment of a broad, commercially acceptable engineering data base for the advancement of coal as the fuel of choice for boilers, furnaces, and process heaters. This includes new installations and those existing installations that were originally designed for oil or gas firing. The data generated by these projects must be sufficient for private-sector decisions on the feasibility of using coal as the fuel of choice. This work should also provide incentives for the private sector to continue and expand the development, demonstration, and application of these combustion systems. Vortec Corporation`s Coal-Fired Combustion System for Industrial Process Heating Applications is being developed under contract DE-AC22-91PC91161 as part of this DOE development program. The current contract represents the third phase of a three-phase development program. Phase I of the program addressed the technical and economic feasibility of the process, and was initiated in 1987 and completed 1989. Phase II was initiated in 1989 and completed in 1990. During Phase II of the development, design improvements were made to critical components and the test program addressed the performance of the process using several different feedstocks. Phase III of the program was initiated September 1991 and is scheduled for completion in 1994. The Phase III research effort is being focused on the development of a process heater system to be used for producing value-added vitrified glass products from boiler/incinerator ashes and selected industrial wastes.

  10. Coal-sand attrition system and its` importance in fine coal cleaning. Fifth quarterly report, August 31, 1992--November 30, 1992

    SciTech Connect

    Mehta, R.K.; Schultz, C.W.

    1993-01-07

    The optimal conditions found for both the median size and specific energy for a particular system differ from one another. The fact that the surfaces from which these conditions are estimated are saddle or minimax further complicate the issue as these are characterized by a range of optimum conditions. However, there is no doubt that the conditions which are suitable for optimizing the product particle size may not necessarily be good for the specific energy. Depending on the objective, either the product size or the specific energy may be optimized. Besides, it seems that when the product particle size is optimized, the specific energy is simultaneously constrained. In this manner, a better estimate of the required energy consumption can be obtained for scale-up purposes. When the results in Table 3 are compared with those of the other three coals given in quarterly report numbers 3 and 4, a trend/pattern is observed. For the four coals involved in this work, the degree of fineness of the product particle size depicted by either the median size or d{sub 90} after wet stirred milling, correlates with the hardness or HGI. In other words, the higher the Hardgrove Index, the finer the product particle size. The specific energy in contrast, does not tend to correlate with the hardness or HGI of the coal. Rather, the softer coal, depending on the properties of the associated impurities appears to consume more power. While this may initially appear to be a great surprise, the reasons for it are rather easy to grasp. In order to do this, one needs to look into such things as the properties/characteristics of the respective coal/impurities, the grinding environment, the mechanism of particle breakage in the mill, and how the grinding force is transmitted to the media.

  11. Clean, premium-quality chars: Demineralized and carbon enriched. Final technical report, September 1, 1991--August 31, 1992

    SciTech Connect

    Smith, G.V.; Malhotra, V.M.; Wiltowski, T.

    1992-12-31

    The overall objective of this two-year project is to evaluate methods of preparing demineralized and carbon enriched chars from Minois Basin coal. There are two processing steps: physical cleaning of the coal and devolatilization of coal under different environments (He, H{sub 2}, He/O{sub 2}, CH{sub 4}, and CH{sub 4}/O{sub 2}) to form chars. Also, as-received and clean coal samples were mixed with hectorite, Ca-montmorillonite, and kaolinite to evaluate the potential effects of these clays on chars yield and agglomeration during devolatilization processes. Three different techniques were used: thermogravimetric analysis, differential thermogravimetric analysis, differential scanning calorimetry (DSC), and in-situ diffuse reflectance FTIR (ISDR-FTIR). Thermogravimetric measurements showed that reactive gases (except He) dissolve in the softened coal. Also, these gases convert some of the coal mineral matter into catalyst by chemical reduction and oxidation. Coal reactivity increases by adding clays because they may be catalyst for methane activation, may prevent coal agglomeration, and may modify the geometric structure of the coal surface. DSC measurements show that clean coal devolatilizes at a lower temperature than as-received sample and preoxidation lowers the devolatilization temperature. Additionally, kaolinite addition increase yields of chars from IBC-102 coal in He. In-situ diffuse reflectance FTIR experiments show that thermal decomposition of coal either increases -CH{sub 3}, content in char or alters the physical structure of -CH{sub 3}. Also, phenol groups of the coal play an important role in cross-linkage the coal structure when coal is thermally treated.

  12. Gasification: redefining clean energy

    SciTech Connect

    2008-05-15

    This booklet gives a comprehensive overview of how gasification is redefining clean energy, now and in the future. It informs the general public about gasification in a straight-forward, non-technical manner.

  13. Computational modeling and experimental studies on NO{sub x} reduction under pulverized coal combustion conditions. Third quarterly technical progress report, July 1, 1995--September 30, 1995

    SciTech Connect

    Kumpaty, S.K.; Subramanian, K.

    1995-12-31

    An experimental plan outlining the first year`s activity was sent to Dr. Lori Gould, Project Officer/Contracting Officer`s Technical Representative on April 24, 1995. An approval was received with some questions on June 15, 1995. However, with some foresight of the director of the in-house combustion group of the PETC, Dr. Ekmann, a tentative hold-off on the purchase of the equipment was requested by the project officer on June 29, 1995. Enclosed with that request were some of Dr. Ekmann`s concerns. The research team spent the month of July in study of pertinent literature as well as in the preparation of the responses to Dr. Gould`s comments and Dr. Ekmann`s concerns. These responses included the choice of the reactor, reactor design, rate of gas heating, detailed test matrix and answers to host of other comments. Upon review of the above information submitted on July 24, 1995 by the Rust research team, the project officer called for a conference call on September 6, 1995 which involved the PI (Dr. Kumpaty), the research consultant (Mr. Subramanian), Dr. Gould and Dr. Ekmann. Dr. Ekmann insisted that further calculations be made on the rate of gas heating without taking radiation into account. Accordingly, calculations pertaining to the rate of gas heating based on convection were performed and submitted to Dr. Ekmann on September 13, 1995. This report contains the information emerged through the dialogue between the Rust College research team and the PETC represented by Dr. Gould and Dr. Ekmann during this quarter.

  14. Pyrite surface characterization and control for advanced fine coal desulfurization technologies. Ninth quarterly technical progress report, September 1, 1992-- December 31, 1992

    SciTech Connect

    Wang, X.H.; Leonard, J.W.; Parekh, B.K.; Jiang, C.L.

    1992-12-31

    This is the 9th quarterly technical progress report for the project entitled ``Pyrite surface characterization and control for advanced fine coal desulfurization technologies``, DE-FG22-90PC90295. The work presented in this report was performed from September 1, 1992 to November 31, 1992. The objective of the project is to conduct extensive fundamental studies on the surface chemistry of pyrite oxidation and flotation and to understand how the alteration of the coal-pyrite surface affects the efficiency of pyrite rejection in coal flotation. During this reporting period, the surface oxidation of pyrite in various electrolytes was investigated. It has been demonstrated, for the first time, that borate, a pH buffer and electrolyte used by many previous investigators in studying sulfide mineral oxidation, actively participates in the surface oxidation of pyrite. In borate solutions, the surface oxidation of pyrite is tronly enhanced. The anodic oxidation potential of pyrite is lowered by more than 0.4 volts. The initial reaction of the borate enhanced pyrite oxidation can be described by:FeS{sub 2} + B(OH){sub 4}{sup =} ------> [S{sub 2}Fe-B(OH){sub 4}]{sub surf} + e. This reaction is irreversible and is controlled by the mass-transfer of borate species from the solution to the surface. It has been shown that the above reaction inhibits the adsorption of xanthate on pyrite. Comparative studies have been made with other sulfide minerals. The solution chemistry of the iron-borate systems have been studied to understand the electrochemical results.

  15. Development and testing of a commercial-scale coal-fired combustion system: Phase 2, Quarterly technical progress report No. 7, April 1, 1992--June 20, 1992

    SciTech Connect

    Litka, A.F.; Breault, R.W.

    1992-08-01

    The objective of this program is to demonstrate the technical and economic viability of a coal-fired combustion system for the commercial sector. The commercial-scale coal-water slurry (CWS) fired space heating system will be a scale-up of a CWS-fired residential warm-air heating system developed by Tecogen Inc. under contract to the Department of Energy (DOE), Pittsburgh Energy Technology Center. This system included a patented nonslagging combustor known as IRIS, for Inertial Reactor with Internal Separation. This combustion technology, which has demonstrated high combustion efficiency using CWS fuels at input rates of 100,000 Btu/hr. will be scaled to operate at 2 to 5 million Btu/hr. Along with the necessary fuel storage and delivery, heat recovery, and control equipment, the system will include pollution control devices to meet targeted values of NO{sub x}, SO{sub 2}, and particulate emissions. In general, the system will be designed to match the reliability, safety, turndown, and ignition performance of gas or oil-fired systems. This report documents the work carried out in the seventh quarter of the program. During this period, proof-of-concept tests aimed at eliminating ash accumulation in the combustor and boiler were conducted. A compressed air soot blower system was installed on the boiler and combustor design changes implemented to reduced direct impingement of slurry on the upper chamber partition. As part of this testing, emission performance goals using Kentucky Hazard Prince Mine coal water slurry were met. Also, during this period the automatic control system for the system was installed and operation with this system was implemented.

  16. CO{sub 2} Huff-n-Puff process in a light oil shallow shelf carbonate reservoir. Quarterly technical progress report, October--December 1996

    SciTech Connect

    Wehner, S.; Prieditis, J.

    1996-12-31

    The principal objective of the Central Vacuum Unit (CVU) CO{sub 2} Huff-n-Puff (H-n-P) project is to determine the feasibility and practicality of the technology in a waterflooded shallow shelf carbonate environment. The results of parametric simulation of the CO{sub 2} H-n-P process, coupled with the CVU reservoir characterization components will be used to determine if this process is technically and economically feasible for field implementation. The technology transfer objective of the project is to disseminate the knowledge gained through an innovative plan in support of the Department of energy`s (DOE) objective of increasing domestic oil production and deferring the abandonment of shallow shelf carbonate reservoirs. Texaco Exploration and Production Inc`s. (TEPI) mid-term plans are to implement a full-scale miscible CO{sub 2} project in the CVU. TEPI concluded all of the tasks associated with the First Budget Period by October, 1995. The DOE approved the TEPI continuation application. Budget Period No. 2 is in progress. Initial injection of CO{sub 2} began in November, and after a short shut-in period for the soak, the well was returned to production in late December, 1995. This report, covers TEPI`s efforts at history matching the results of the field demonstration. Costs and economics of the work are presented. The majority of effort during the fourth quarter has revolved around the selection of a new project site and refinement of the demonstration design and well selection.

  17. Clean, premium-quality chars: Demineralized and carbon enriched. Final technical report, 1 September, 1992--31 August, 1993

    SciTech Connect

    Smith, G.V.; Malhotra, V.M.; Wiltowski, T.

    1993-12-31

    The overall objective of this two-year project was to evaluate methods of preparing demineralized and carbon enriched chars from Illinois Basin coals. The two processing steps, physical cleaning and devolatilization under different environments, led to the following results. Cleaning coal incompletely removes mineral matter which decreases catalytic activity and increases micropore structure. Water forms hydrogen bonds to oxygen functional groups in coal, and during drying, coals undergo structural changes which affect mild gasification. When methane reacts wit coal, devolatilization and carbon deposition occur, the rates of which depend on temperature and amount of ash. Thermal decomposition of IBC-101 coal starts at 300 C, which is much lower than previously believed, but maximum yields of liquids occur at 500 C for IBC-101 coal and at 550 C for IBC-102 coal. Aliphatic-to-aromatic ratios increase with increasing pyrolysis temperatures to 300 C and then decrease; therefore, liquids formed during gasification of 550 C or higher contain mainly aromatic compounds. Btu values of chars are higher after methane treatment than after helium treatment.

  18. Development of an advanced, continuous mild gasification process for the production of co-products. Quarterly technical progress report, April--June 1992

    SciTech Connect

    Runge, B.D.; Ness, R.O. Jr.; Sharp, L.L.; Shockey, R.E.

    1992-07-01

    The char produced in the 100-lb/hr process development unit has been magnetically cleaned by AMAX and returned to the Energy and Environmental Research Center (EERC). The final calcining step of the process is currently being performed in the 4-lb/hr continuous fluidized-bed reactor (CFBR). The liquid products generated by the PDU have been collected and split into usable fractions and fractions to be discarded. Samples of the coal-derived liquids have been sent to Merichem Corporation of Houston and Koppers Industries of Pittsburgh for determination of their usefulness as chemical feedstock for the production of cresylic acids and anode-grade-binder pitch. The technical and economic assessment performed by Xbi and J.E Sinor Consultants has been completed. The briquette testing being conducted at the EERC has produced high quality briquettes using a number of binder agents. The next step in the test matrix will include the use of coal-derived liquids from the PDU as the binder. An additional coal has been added to the mild gasification test matrix. AMAX recently acquired two eastern low-sulfur bituminous coals and suggested that a limited test schedule be conducted to determine the suitability of these coals for the mild gasification process. The sulfur levels in the raw coals are below the target levels suggested by the steel industry for metallurgical coke use. To date, it has not been possible to reach these goals using the high-sulfur Illinois Basin coals tested.

  19. Improvement of storage, handling, and transportability of fine coal. Quarterly technical progress report No. 5, January 1, 1995--March 31, 1995

    SciTech Connect

    1996-08-21

    The Mulled Coal process was developed as a means of overcoming the adverse handling characteristics of wet fine coal without thermal drying. The process involves the addition of a low cost, harmless reagent to wet fine coal using off-the-shelf mixing equipment. Based on laboratory- and bench-scale testing, Mulled Coal can be stored, shipped, and burned without causing any of the plugging, pasting, carryback and freezing problems normally associated with wet coal. The objectives of this project are to demonstrate that: the Mulled Coal process, which has been proven to work on a wide range of wet fine coals at bench scale, will work equally well on a continuous basis, producing consistent quality at a convincing rate of production in a commercial coal preparation plant; the wet product from a fine coal cleaning circuit can be converted to a solid fuel form for ease of handling and cost savings in storage and rail car transportation; and a wet fine coal product thus converted to a solid fuel form, can be stored, shipped, and burned with conventional fuel handling, transportation, and combustion systems. During this reporting period, virtually all of the technical activities and progress was made in the areas of circuit installation and startup operations. Work in these activity areas are described.

  20. Three-dimensional structure of flow in coal-cleaning cyclones: Final technical report, September 1, 1985-December 31, 1987

    SciTech Connect

    Hwang, C.C.; Chiu, C.L.

    1988-03-30

    The objectives of this study were: (1) to utilize experimental data regarding the flow in cyclone, to develop mathematical models for simulating fluid flows in cyclones under different design and operational conditions; and (2) to simulate the motion of solid particles in the flow fields simulated. The mathematical models developed were tested on a cyclone. Computed fluid flows were very close to the measured, under the same operational conditions. Three dimensional trajectories of solid particles entering the cyclone were then simulated and plotted. These results were used in the analysis of separating efficiency. By testing the effects of any adjustments in the design, operational conditions, and fluid properties, the techniques developed can be instrumental in improving the performance of coal cleaning cyclones. 29 refs., 9 figs., 1 tab.

  1. Application of integrated reservoir management and reservoir characterization to optimize infill drilling. Quarterly technical progress report, September 13, 1995--December 12, 1995

    SciTech Connect

    1995-12-12

    The main emphasis this quarter was on the geostatistics and reservoir simulation. Assimilation of data with the geostatistics was conducted to determine the specific well locations for the demonstration program. Reservoir characterization and performance information is also included.

  2. Potential for thermal coal and Clean Coal Technology (CCT) in the Asia-Pacific. Final technical report

    SciTech Connect

    Johnson, C.J.; Long, S.

    1991-11-22

    The Coal Project was able to make considerable progress in understanding the evolving energy situation in Asia and the future role of coal and Clean Coal Technologies. It is clear that there will be major growth in consumption of coal in Asia over the next two decades -- we estimate an increase of 1.2 billion metric tons. Second, all governments are concerned about the environmental impacts of increased coal use, however enforcement of regulations appears to be quite variable among Asian countries. There is general caution of the part of Asian utilities with respect to the introduction of CCT`s. However, there appears to be potential for introduction of CCT`s in a few countries by the turn of the century. It is important to emphasize that it will be a long term effort to succeed in getting CCT`s introduced to Asia. The Coal Project recommends that the US CCT program be expanded to allow the early introduction of CCT`s in a number of countries.

  3. Quarterly Performance/Technical Report

    DTIC Science & Technology

    2006-06-30

    Washington 6. Durham, NC-Duke University Medical Center 7. Philadelphia, PA-University of Pennsylvania Medical Center 8. NY, NY-Memorial Sloan -Kettering...Minnesota BMT Program 12. Denver, CO-Presbyterian/St. Lukes Medical Center The NMDP continues to work with the remaining three centers that have not...for this trial is Dr. Juliet Barker of Sloan -Kettering Cancer Center. A protocol team was established with bi-monthly conference calls to develop the

  4. The economical production of alcohol fuels from coal-derived synthesis gas. Quarterly technical progress report No. 5, October 1, 1992--December 31, 1992

    SciTech Connect

    Not Available

    1993-01-01

    Two base case flow sheets have now been prepared. In the first, which was originally presented in TPR4, a Texaco gasifier is used. Natural gas is also burned in sufficient quantity to increase the hydrogen to carbon monoxide ratio of the synthesis gas to the required value of 1. 1 for alcohol synthesis. Acid gas clean up and sulfur removal are accomplished using the Rectisol process followed by the Claus and Beavon processes. About 10% of the synthesis gas is sent to a power generation unit in order to produce electric power, with the remaining 90% used for alcohol synthesis. For this process, the estimated installed cost is $474.2 mm. The estimated annual operating costs are $64.5 MM. At a price of alcohol fuels in the vicinity of $1. 00/gal, the pay back period for construction of this plant is about four years. The details of this case, called Base Case 1, are presented in Appendix 1. The second base case, called Base Case 2, also has a detailed description and explanation in Appendix 1. In Base Case 2, a Lurgi Gasifier is used. The motivation for using a Lurgi Gasifier is that it runs at a lower temperature and pressure and, therefore, produces by-products such as coal liquids which can be sold. Based upon the economics of joint production, discussed in Technical Progress Report 4, this is a necessity. Since synthesis gas from natural gas is always less expensive to produce than from coal, then alcohol fuels will always be less expensive to produce from natural gas than from coal. Therefore, the only way to make coal- derived alcohol fuels economically competitive is to decrease the cost of production of coal-derived synthesis gas. one method for accomplishing this is to sell the by-products from the gasification step. The details of this strategy are discussed in Appendix 3.

  5. A comparison study of column flotation technologies for cleaning Illinois coal. Final technical report, September 1, 1993--November 30, 1994

    SciTech Connect

    Honaker, R.Q.; Paul, B.C.

    1994-12-31

    Six commercially-available column technologies were compared on the basis of their separation performance, throughput capacity and operational characteristics for treating Illinois Basin coal fines. The flotation column technologies included in this study were the Jameson Cell, Flotaire, Turboair, Packed-Column, Microcel and the Canadian Column. The coal samples treated in this study were a {minus}100 mesh flotation feed slurry, a {minus}40 mesh coal, and a refuse pond coal sample. This investigation found that the Packed Column, Jameson Cell, and Microcel are the best flotation columns for cleaning the Illinois Basin coals treated in this study. The Packed-Column was found to provide superior selectivity, although requiring the highest amount of air and frother concentration. The superior performance is believed to be related to the extensive reflux action and selective detachment mechanism that are more prevalent in the Packed-Column due to its unique ability to support a full froth column. Among the conventional open columns, the Microcel provided the best selectivity, most likely due to its lower aeration requirement which results in a more plug-flow environment within the cell. Both the Packed-Column and the Microcel appeared to have nearly equal throughput capacities. The Jameson Cell, which also has a relatively high throughput capacity, was found to require the least amount of frother while supplying a self-inducing air system. Another important finding of this investigation is that the traditional release analysis procedure is inadequate for predicting the optimum performance of advanced froth flotation processes and, thus, requires further investigation.

  6. Pelletizing/reslurrying as a means of distributing and firing clean coal. Final quarterly technical progress report No. 6, October 1, 1991--December 31, 1991

    SciTech Connect

    Conkle, H.N.

    1992-03-17

    The objective of this study is to develop technology that permits the practical and economic preparation, storage, handling, and transportation of coal pellets, which can be reslurried into Coal water fuels (CWF) suitable for firing in small- and medium-size commercial and industrial boilers, furnaces, and engines. The project includes preparing coal pellets and capsules from wet filter cake that can be economically stored, handled, transported, and reslurried into a CWF that can be suitably atomized and fired at the user site. The wet cakes studied were prepared from ultra-fine (95% -325 mesh) coal beneficiated by advanced froth-flotation techniques. The coals studied included two eastern bituminous coals, one from Virginia (Elkhorn) and one from Illinois (Illinois No. 6) and one western bituminous coal from Utah (Sky Line coal).

  7. Pelletizing/reslurrying as a means of distributing and firing clean coal. Final quarterly technical progress report No. 4, April 1, 1991--June 30, 1991

    SciTech Connect

    Conkle, H.N.; Raghavan, J.K.; Smit, F.J.; Jha, M.C.

    1991-09-20

    The objective of this study is to develop technology that permits the practical and economic preparation, storage, handling, and transportation of coal pellets, which can be formulated into Coal-Water Fuels (CWFs) suitable for firing in small- and medium-size commercial and industrial boilers, furnaces, and engines.

  8. Engineering development of advanced physical fine coal cleaning technolgies: Froth flotation. Quarterly technical progress report No. 10, January 1, 1991--March 31, 1991

    SciTech Connect

    Not Available

    1991-12-31

    The Task 6 effort involves three main elements including column cell development, flotation circuit testing and flotation cell modeling. The work outlined is to research column designs and operation parameters in developing an optimized column flotation cell (OCFC) to meet the overall program objectives. Any design parameters that were not evaluated as part of the optimized column development work will be reviewed and tested so as to incorporate all possible scenarios in presenting DOE with the best available flotation process for use in the 2 to 3 ton per hour POC. Following development of the OCFC, various flotation circuit configurations will be evaluated determine the ``best`` circuit design for the 2 to 3 ton per hour POC. Single and multiple stage flotation, grab and run, rougher/scavenger/cleaner, etc., test circuits will be tested as part of this effort. Upon completion of this test work, the ``best`` possible flotation cell will have been tested in a number of possible flotation circuit designs to possibly provide the ``best`` flotation approach in meeting the design criteria. In conjunction with the flotation test effort, model development work will be conducted to provide a tool in evaluating the various flotation circuit configurations and in predicting flotation performance. The model will be useful in selecting operating conditions in the POC and in evaluating the performance of the POC.

  9. Engineering development of advanced physical fine coal cleaning technologies: Froth flotation. Quarterly technical progress report No. 9, October 1, 1990--December 31, 1990

    SciTech Connect

    Not Available

    1992-12-31

    The Task 6 effort involves three main elements including column cell development, flotation circuit testing and flotation cell modeling. The work outlined is to research column designs and operation parameters in developing an optimized column flotation cell (OCFC) to meet the overall program objectives. The test results obtained through this effort will be evaluated against the results obtained from the round-robin test program in Task 5. Any design parameters or operating conditions that are unique with the round-robin test winner that were not evaluated as part of the optimized column developments work will be reviewed and tested so as to incorporate all possible scenarios in presenting DOE with the best available flotation process for use in the 2 to 3 ton per hour POC. Following development of the OCFC, various flotation circuit configurations will be evaluated determine the ``best`` circuit design for the 2 to 3 ton per hour POC. Single and multiple stage flotation, grab and run,rougher/scavenger/cleaner, etc., test circuits will be tested as part of this effort. Upon completion of this test work, the ``best`` possible flotation cell will have been tested in a number of possible flotation circuit designs to possibly provide the ``best`` flotation approach in meeting the design criteria. In conjunction with the flotation test effort, model development work will be conducted to provide a tool in evaluating the various flotation circuit configurations and in predicting flotation performance. The model will be useful in selecting operating conditions in the POC and in evaluating the performance of the POC.

  10. Engineering development of advanced physical fine coal cleaning technologies: Froth flotation. Quarterly technical progress report No. 13, October 1, 1991--December 31, 1991

    SciTech Connect

    Not Available

    1993-02-12

    Work completed produced the criteria for additional engineering analysis, computation and detailed experimental benchscale testing for areas of uncertainty. The engineering analysis, computation, bench-scale testing and component development was formulated to produce necessary design information to define a commercially operating system. In order to produce the required information by means of bench-scale testing and component development, a uniform coal sample was procured. After agreement with DOE, a selected sample of coal from those previously listed was secured. The test plan was developed in two parts. The first part listed procedures for engineering and computational analyses of those deficiencies previously identified that could be solved without bench scale testing. Likewise, the second part prepared procedures for bench-scale testing and component development for those deficiencies previously identified in Task 3.

  11. Pelletizing/reslurrying as a means of distributing and firing clean coal. Final quarterly technical progress report No. 5, July 1, 1991--September 30, 1991

    SciTech Connect

    Conkle, H.N.; Raghavan, J.K.; Smit, F.J.; Jha, M.C.

    1991-11-21

    The objective of this study is to develop technology that permits the practical and economic preparation, storage, handling, and transportation of coal pellets, which can be reslurried into Coal water fuels (CWF) suitable for firing in small- and medium-size commercial and industrial boilers, furnaces, and engines. The project includes preparing coal pellets and capsules from wet filter cake that can be economically stored, handled, transported, and reslurried into a CWF that can be suitably atomized and fired at the user site. The wet cakes studied were prepared from ultra-fine (95% -325 mesh) coal beneficiated by advanced froth-flotation techniques. The coals studied included two eastern bituminous coals, one from Virginia (Elkhorn) and one from Illinois (Illinois No. 6) and one western bituminous coal from Utah (Sky Line coal).

  12. Engineering development of advanced physical fine coal cleaning technologies: Froth flotation. Quarterly technical progress report No. 14, January 1, 1992--March 31, 1992

    SciTech Connect

    Not Available

    1992-12-31

    In order to develop additional confidence in the conceptual design of the advanced froth flotation circuit, a 2-3 TPH Proof-of-Concept (POC) facility was necessary. During operation of this facility, the ICF KE team will demonstrate the ability of the conceptual flowsheets to meet the program goals of maximum pyritic sulfur reduction coupled with maximum energy recovery on three DOE specified coals. The POC circuit was designed to be integrated into the Ohio Coal Development`s facility near Beverly, Ohio. OCDO`s facility will provide the precleaning unit operations and ICF KE will add the advanced froth flotation circuitry. The work in this task will include the POC conceptual design, flowsheet development, equipment list, fabrication and construction drawings, procurement specifications and bid packages and a facilities.

  13. A study of multistage/multifunction column for fine particle separation. Quarterly technical progress report, October 1, 1994--December 31, 1994

    SciTech Connect

    Chiang, Shiao-Hung

    1995-02-10

    The overall objective of the proposed research program is to explore the potential application of a new a multistage column equipped with vortex-inducing loop-flow contactors (hereafter referred to as the multistage flotation column) for flotation processes using gaseous-CO{sub 2}. The research work will identify the design parameters and their effect on the performance of the separation process. The results of this study will provide a basis for further development of this technology. In the last quarter, the authors completed Task 1 (Project Planning) and performed equipment design. In this quarter, the authors have started to construct the new column for hydrodynamic tests and expect to complete the installation work in the next quarter. The shake-down test is scheduled for March 1995.

  14. Computational Modeling and Experimental Studies on NO(x) Reduction Under Pulveerized Coal Combustion Conditions. Quarterly technical progress report, July 1 - September 30, 1997

    SciTech Connect

    Kumpaty, S.K.; Subramanian, K.; Darboe, A.; Kumpati, S.K.

    1997-12-31

    Several experiments were conducted during this quarter to study the NO{sub x} reduction effectiveness of lignite coal, activated carbon and catalytic sites such as calcium sulfide and calcium carbide. While some of the coals/chemicals could be fed easily, some needed the mixing with silica gel to result in a uniform flow through the feeder. Several trial runs were performed to ensure proper feeding of the material before conducting the actual experiment to record NO{sub x} reduction. The experimental approach has been the same as presented in the past two quarterly reports with the coal reburning experiments. Partial reduction is achieved through methane addition for SR2=0.95 conditions and then coal or the catalyst is introduced to see if there is further reduction. Presented below are the results of the experiments conducted during this quarter.

  15. A study of multistage/multifunction column for fine particle separation. Quarterly technical progress report, January 1, 1995-- March 31, 1995

    SciTech Connect

    Chiang, Shiao-Hung; Lai, R.W.

    1995-04-20

    The overall objective of the proposed research program is to explore the potential application of a new invention involving a multistage column equipped with vortex-inducing loopflow contactors (hereafter referred to as the multistage flotation column) for flotation process. The research work will identify the design parameters and their effects on the performance of the separation process. The results of this study will provide a basis for further development of this technology. In the last quarter, we completed equipment design and started to construct the new column for hydrodynamic tests. In this quarter, Task 2 (Equipment Design and Construction) was completed, and the experimental work mainly focused on gas holdup measurement.

  16. Efficient ultrasonic grinding: a new technology for micron-sized coal. Quarterly technical progress report No. 3, March 16, 1980-June 15, 1980

    SciTech Connect

    Tarpley, W.B. Jr.; Howard, P.L.; Moulder, G.R.

    1980-07-01

    During the third quarter, work focused on design and development of the dual roller comminution apparatus, based on operation and evaluation of the cylinder segment test apparatus. Tests of the dual roller will be conducted during the next quarter. Determinations of the degree of preferential liberation of pyrite and ash inclusions were conducted with results that clearly demonstrate this ultrasonic effect. In preliminary tests, 67% of the pyrite and at least 21% of the ash inclusions were liberated and were amenable to settling collection in the -10 micron size range. Larger scale testing is being conducted to expand the data base and better quantify the degree of preferential liberation.

  17. Plasma Cleaning

    NASA Technical Reports Server (NTRS)

    Hintze, Paul E.

    2016-01-01

    NASA's Kennedy Space Center has developed two solvent-free precision cleaning techniques: plasma cleaning and supercritical carbon dioxide (SCCO2), that has equal performance, cost parity, and no environmental liability, as compared to existing solvent cleaning methods.

  18. Development of a synthetic fuel reciprocating charge pump. Quarterly technical progress report for the period of: 1 January 1987--31 March 1987

    SciTech Connect

    Bonney, G.E.

    1987-12-31

    This report covers the third quarter of the third phase of the reciprocating charge pump improvement program. The program was begun in 1982 for the purpose of improving the operating life of packings and plungers used in 300 psig, 300F coal/solvent slurry pumps employed in synthetic fuel generating plants. The testing to be performed during this phase has been modified since the last quarterly report. This test measured the effects of slurry migration past the floating piston seal and the time to wear the packing and plunger beyond the acceptable limit. Table 1 summarizes all testing to date, 456 hours total at this time with 72 hours on 35% slurry. It denotes the valve problems seen with rapid pressure decay when pumping slurry. Throughout this time, 33 specific and different equipment failures and operation problems occurred that delayed the testing.

  19. Post waterflood CO2 miscible flood in light oil fluvial - dominated deltaic reservoirs. Technical progress report, October 1, 1994--December 30, 1994. 1st Quarter, fiscal year 1995

    SciTech Connect

    1994-01-15

    Production is averaging about 450 BOPD for the quarter. The fluctuation was primarily due to a temporary shutdown of CO{sub 2} delivery and maturing of the first WAG cycle. CO{sub 2} and water injection were reversed again in order to optimize changing yields and water cuts in the producing wells. Measured BHP was close to the anticipated value. A limited CO{sub 2} volume of 120 MMCF was injected to stimulate well Kuhn No. 6 to test the Huff-Puff process, since the well did not respond to CO{sub 2} injection from the main reservoir. The well will be placed on February 1, 1995. Total CO{sub 2} injection averaged this quarter about 8.8 MMCFD, including 3.6 MMCFD purchased CO{sub 2} from Cardox. The stratigraphy of the sand deposits is also discussed.

  20. Low cost hydrogen/novel membrane technology for hydrogen separation from synthesis gas, Phase 1. Quarterly technical progress report for the period ending March 31, 1986

    SciTech Connect

    Not Available

    1986-12-31

    The goal of this program is to develop polymer membranes useful in the preparation of hydrogen from coal-derived synthesis gas. During this quarter the first experiment were aimed at developing high performance composite membranes for the separation of hydrogen from nitrogen and carbon monoxide. Three polymers have been selected as materials for these membranes: polyetherimide cellulose acetate and ethylcellulose. This quarter the investigators worked on polyetherimide and cellulose acetate membranes. The overall structure of these membranes is shown schematically in Figure 1. As shown, a microporous support membrane is first coated with a high flux intermediate layer then with an ultrathin permselective layer and finally, if necessary, a thin protective high flux layer. 1 fig., 4 tabs.