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Advanced Liquefaction Using Coal Swelling And Catalyst Dispersion Techniques Quarterly Technical Progress Report April June 1992
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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 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, 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. 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, 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.
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.
Download or read book Energy Research Abstracts written by and published by . This book was released on 1994-02 with total page 484 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 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. 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. 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. 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 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 1148 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 1993 with total page 714 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Advanced Coal Liquefaction. Quarterly Technical Progress Report, April 1, 1995-June 30, 1995 by :
Download or read book Advanced Coal Liquefaction. Quarterly Technical Progress Report, April 1, 1995-June 30, 1995 written by and published by . This book was released on 1996 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Catalyst Dispersion and Activity Under Conditions of Temperature- Staged Liquefaction. Technical Progress Report, January--March 1992 by :
Download or read book Catalyst Dispersion and Activity Under Conditions of Temperature- Staged Liquefaction. Technical Progress Report, January--March 1992 written by and published by . This book was released on 1992 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt: Two coals, a Texas subbituminous C and a Utah high volatile A bituminous, were used to examine the effects of solvent swelling and catalyst impregnation on liquefaction conversion behavior in temperature staged reactions for 30 minutes each at 275° and 425°C in H2 and 95:5 H2:H2S atmospheres. Methanol, pyridine, tetrahydrofuran, and tetrabutylammonium hydroxide were used as swelling agents. Molybdenum-based catalyst precursors were ammonium tetrathiomolybdate, molybdenum trisulfide, molybdenum hexacarbonyl, and bis(tricarbonylcyclopentadienyl-molybdenum). Ferrous sulfate and bis(dicarbonylcyclo-pentadienyliron) served as iron-based catalyst precursors. In addition, ion exchange was used for loading iron onto the subbituminous coal. For most experiments, liquefaction in H2:H2S was superior to that in H2, regardless of the catalyst precursor. The benefit of the H2S was greater for the subbituminous, presumably because of its higher iron content relative to the hvab coal. Tetrabutylammonium hydroxide was the only swelling agent to enhance conversion of the hvab coal significantly; it also caused a remarkable increase in conversion of the subbituminous coal. The combined application of solvent swelling and catalyst impregnation also improves liquefaction, mainly through increased oil yields from the hvab coal and increased asphaltenes from the subbituminous. A remarkable effect from use of ammonium tetrathiomolybdate as a catalyst precursor is substantial increase in pristane and phytane yields. Our findings suggest that these compounds are, at least in part, bound to the coal matrix.
Book Synopsis Advanced Coal Liquefaction Catalyst Development. Quarterly Progress Report by :
Download or read book Advanced Coal Liquefaction Catalyst Development. Quarterly Progress Report written by and published by . This book was released on 1983 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Coal liquefaction results with and without Amocat catalysts at various conditions (especially with respect to variations of hydrogen pressure and organic solvent) are reported. (LTN).
