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Advanced Liquefaction Using Coal Swelling And Catalyst Dispersion Techniques
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Book Synopsis Advanced Liquefaction Using Coal Swelling and Catalyst Dispersion Techniques by :
Download or read book Advanced Liquefaction Using Coal Swelling and Catalyst Dispersion Techniques written by and published by . This book was released on 1992 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis Advanced Liquefaction Using Coal Swelling and Catalyst Dispersion Techniques. Quarterly Technical Progress Report, April--June 1992 by :
Download or read book Advanced Liquefaction Using Coal Swelling and Catalyst Dispersion Techniques. Quarterly Technical Progress Report, April--June 1992 written by and published by . This book was released on 1992 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis Advanced Liquefaction Using Coal Swelling and Catalyst Dispersion Techniques. Volume 1, Final Technical Report, October 1, 1991-September 30, 1994 by :
Download or read book Advanced Liquefaction Using Coal Swelling and Catalyst Dispersion Techniques. Volume 1, Final Technical Report, October 1, 1991-September 30, 1994 written by and published by . This book was released on 1994 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Advanced Liquefaction Using Coal Swelling and Catalyst Dispersion Techniques. Quarterly Progress Report, July-September 1993 by :
Download or read book Advanced Liquefaction Using Coal Swelling and Catalyst Dispersion Techniques. Quarterly Progress Report, July-September 1993 written by and published by . This book was released on 1993 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Advanced Liquefaction Using Coal Swelling and Catalyst Dispersion Techniques. Quarterly Technical Progress Report, January--March 1992 by :
Download or read book Advanced Liquefaction Using Coal Swelling and Catalyst Dispersion Techniques. Quarterly Technical Progress Report, January--March 1992 written by and published by . This book was released on 1992 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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 Department of Energy has not yet authorized starting the experimental aspects of this and other similar projects; specifically, approval of the National Environmental Policy Act (NEPA) requirements. A set of coal samples were sent to Hazen Research for beneficiation so that experimentation can get underway after DOE has approved the document.
Book Synopsis Advanced Liquefaction Using Coal Swelling and Catalyst Dispersion Techniques. Volume 2, Appendices. Final Technical Report, October 1, 1991-September 30, 1994 by :
Download or read book Advanced Liquefaction Using Coal Swelling and Catalyst Dispersion Techniques. Volume 2, Appendices. Final Technical Report, October 1, 1991-September 30, 1994 written by and published by . This book was released on 1995 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Advanced Liquefaction Using Coal Swelling and Catalyst Dispersion Techniques. Report No. Q-01, Quarterly Technical Progress Report, October--December 1991 by :
Download or read book Advanced Liquefaction Using Coal Swelling and Catalyst Dispersion Techniques. Report No. Q-01, Quarterly Technical Progress Report, October--December 1991 written by and published by . This book was released on 1991 with total page 35 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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. Work has centered upon obtaining bulk samples of feedstocks for the project, up-dating the background literature, and preparing and testing a computer program to perform material balance calculations for the continuous flow liquefaction unit.
Book Synopsis Advanced Liquefaction Using Coal Swelling and Catalyst Dispersion Techniques. Quarterly Technical Progress Report, October--December 1992 by :
Download or read book Advanced Liquefaction Using Coal Swelling and Catalyst Dispersion Techniques. Quarterly Technical Progress Report, October--December 1992 written by and published by . This book was released on 1992 with total page 61 pages. Available in PDF, EPUB and Kindle. Book excerpt: The evaluation of various catalyst pre or pyrene coal conversion continued. Higher coal conversions were observed for the S02-treated coal than the raw coal, regardless of catalyst type. Coal conversions were highest for Molyvan-L, molybdenum naphthenate, and nickel octoate. A technique to measure the effect of coal swelling and catalyst impregnation upon coal liquefaction has been developed, and experimentation is under way. Reactivity tests have been performed using S02-treated and untreated swelled Black Thunder Coal. Thermal reactions with swelled coals yielded much less coal conversion and pyrene conversion than did the swelled coal reactions with Molyvan-L. The study of bottoms processing consists of coupling solvent deasphalting with delayed coking to maximize the production of coal-derived liquids while rejecting solids within the coke drum. The batch deasphalting screening tests have been completed. While n-butane/pentane solvent blends initially appeared best, pentane alone at 380°F provided an oil yield (63.6 wt%) that was desired for subsequent tests. The production of asphalt for the transport tests is underway. The target deasphalted oil yields are 40, 50 and 60 wt% of feed. This would produce asphalt with ash levels ranging from 20 to 30 wt% with which to run the transport tests.
Book Synopsis Advanced Liquefaction Using Coal Swelling and Catalyst Dispersion Techniques. Quarterly Technical Progress Report No. 7, April 1993--June 1993 by :
Download or read book Advanced Liquefaction Using Coal Swelling and Catalyst Dispersion Techniques. Quarterly Technical Progress Report No. 7, April 1993--June 1993 written by and published by . This book was released on 1994 with total page 103 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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 SO2-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.
Book Synopsis Advanced Liquefaction Using Coal Swelling and Catalyst Dispersion Techniques. Quarterly Technical Progress Report, January--March 1993 by :
Download or read book Advanced Liquefaction Using Coal Swelling and Catalyst Dispersion Techniques. Quarterly Technical Progress Report, January--March 1993 written by and published by . This book was released on 1993 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis Advanced Liquefaction Using Coal Swelling and Catalyst Dispersion Techniques. Quarterly Technical Progress Report, July--September 1992 by :
Download or read book Advanced Liquefaction Using Coal Swelling and Catalyst Dispersion Techniques. Quarterly Technical Progress Report, July--September 1992 written by and published by . This book was released on 1992 with total page 145 pages. Available in PDF, EPUB and Kindle. Book excerpt: The experimental study of coal swelling ratios have been determined with a wide variety of solvents. Only marginal levels of coal swelling were observed for the hydrocarbon solvents, but high levels were found with solvents having heteroatom functionality. Blends were superior to pure solvents. The activity of various catalyst precursors for pyrene hydrogenation and coal conversion was measured. Higher coal conversions were observed for the S02-treated coal than the raw coal, regardless of catalyst type. Coal conversions were highest for Molyvan-L, molybdenum naphthenate, and nickel octoate, respectively. Bottoms processing consists of a combination of the ASCOT process coupling solvent deasphalting with delayed coking. Initial results indicate that a blend of butane and pentane used near the critical temperature of butane is the best solvent blend for producing a yield/temperature relationship of proper sensitivity and yet retaining an asphalt phase of reasonable viscosity. The literature concerning coal swelling, both alone and in combination with coal liquefaction, and the use of dispersed or unsupported catalysts in coal liquefaction has been updated.
Download or read book Energy Research Abstracts written by and published by . This book was released on 1994-11 with total page 486 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Government Reports Announcements & Index by :
Download or read book Government Reports Announcements & Index written by and published by . This book was released on 1995-12 with total page 1578 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Government Reports Annual Index by :
Download or read book Government Reports Annual Index written by and published by . This book was released on 1994 with total page 1224 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Advanced Coal Liquefaction Research and Development Facility, Wilsonville, Alabama. Run 262 with Black Thunder Subbituminous Coal by :
Download or read book Advanced Coal Liquefaction Research and Development Facility, Wilsonville, Alabama. Run 262 with Black Thunder Subbituminous Coal written by and published by . This book was released on 1992 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report presents the results of Run 262 performed at the Advanced Coal Liquefaction R & D Facility in Wilsonville, Alabama. The run started on July 10, 1991 and continued until September 30, 1991, operating in the Close-Coupled Integrated Two-Stage Liquefaction mode processing Black Thunder Mine subbituminous coal (Wyodak-Anderson seam from Wyoming Powder River Basin). A dispersed molybdenum catalyst was evaluated for its performance. The effect of the dispersed catalyst on eliminating solids buildup was also evaluated. Half volume reactors were used with supported Criterion 324 1/16'' catalyst in the second stage at a catalyst replacement rate of 3 lb/ton of MF coal. The hybrid dispersed plus supported catalyst system was tested for the effect of space velocity, second stage temperature, and molybdenum concentration. The supported catalyst was removed from the second stage for one test period to see the performance of slurry reactors. Iron oxide was used as slurry catalyst at a rate of 2 wt % MF coal throughout the run (dimethyl disulfide (DMDS) was used as the sulfiding agent). The close-coupled reactor unit was on-stream for 1271.2 hours for an on-stream factor of 89.8% and the ROSE-SR unit was on-feed for 1101.6 hours for an on-stream factor of 90.3% for the entire run.
Book Synopsis Integrated Two-stage Coal Liquefaction Batch Catalyst Operations by :
Download or read book Integrated Two-stage Coal Liquefaction Batch Catalyst Operations written by and published by . This book was released on 1986 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Advanced Progress Concepts for Direct Coal Liquefaction by :
Download or read book Advanced Progress Concepts for Direct Coal Liquefaction written by and published by . This book was released on 1995 with total page 25 pages. Available in PDF, EPUB and Kindle. Book excerpt: Given the low cost of petroleum crude, direct coal liquefaction is still not an economically viable process. The DOE objectives are to further reduce the cost of coal liquefaction to a more competitive level. In this project the primary focus is on the use of low-rank coal feedstocks. A particular strength is the use of process-derived liquids rather than model compound solvents. The original concepts are illustrated in Figure 1, where they are shown on a schematic of the Wilsonville pilot plant operation. Wilsonville operating data have been used to define a base case scenario using run {number_sign}263J, and Wilsonville process materials have been used in experimental work. The CAER has investigated: low severity CO pretreatment of coal for oxygen rejection, increasing coal reactivity and mg inhibiting the propensity for regressive reactions; the application of more active. Low-cost Fe and Mo dispersed catalysts; and the possible use of fluid coking for solids rejection and to generate an overhead product for recycle. CONSOL has investigated: oil agglomeration for coal ash rejection, for the possible rejection of ash in the recycled resid, and for catalyst addition and recovery; and distillate dewaxing to remove naphthenes and paraffins, and to generate an improved quality feed for recycle distillate hydrogenation. At Sandia, research has been concerned with the production of active hydrogen donor distillate solvent fractions produced by the hydrogenation of dewaxed distillates and by fluid coking via low severity reaction with H2/CO/H2O mixtures using hydrous metal oxide and other catalysts.
