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Download or read book Exploration Research on Novel Coal Liquefaction Concept written by and published by . This book was released on 1995 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Exploratory Research on Novel Coal Liquefaction Concept. Technical Report written by and published by . This book was released on 1995 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Exploratory Research on Novel Coal Liquefaction Concept written by and published by . This book was released on 1997 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Task 3 experimental tests were concluded this quarter. Second-stage testing of first-stage distilled filtrates and of a Wilsonville resid from Run 263 were completed. The first-stage filtrates were found to have higher reactivity than the Wilsonville material. Task 4 experimental testing was initiated. First-stage microautoclave tests were made at reduced catalyst loading and reduced solvent to coal ratio without negatively affecting coal conversion. Lower severity second-stage catalytic upgrading tests were begun. The single-pass resid conversion obtained in the first completed second-stage test was high (67-69 %).
Download or read book Exploratory Research on Novel Coal Liquefaction Concept - Task 2: Evaluation of Process Steps written by and published by . This book was released on 2001 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: A novel direct coal liquefaction technology is being investigated in a program being conducted by CONSOL Inc. with the University of Kentucky, Center for Applied Energy Research and LDP Associates under DOE Contract DE-AC22-95PC95050. The novel concept consists of a new approach to coal liquefaction chemistry which avoids some of the inherent limitations of current high-temperature thermal liquefaction processes. The chemistry employed is based on hydride ion donation to solubilize coal at temperatures (350-400[degrees]C) significantly lower than those typically used in conventional coal liquefaction. The process concept being explored consists of two reaction stages. In the first stage, the coal is solubilized by hydride ion donation. In the second, the products are catalytically upgraded to acceptable refinery feedstocks. The program explores not only the initial solubilization step, but integration of the subsequent processing steps, including an interstage solids-separation step, to produce distillate products. A unique feature of the process concept is that many of the individual reaction steps can be decoupled, because little recycle around the liquefaction system is expected. This allows for considerable latitude in the process design. Furthermore, this has allowed for each key element in the process to be explored independently in laboratory work conducted under Task 2 of the program.
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ISBN 13 :
Total Pages : 9 pages
Book Rating : 4.:/5 (16 download)
Download or read book Exploratory Research on Novel Coal Liquefaction Concept. Quarterly Report, October 1, 1996--December 31, 1996 written by and published by . This book was released on 1997 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt: A goal of this work was to reduce the cost associated with hydrogen ion reagent À.̀ Microautoclave tests were previously conducted using À/̀dry coal = 1.0. This quarter test were completed using a ratio of 2.0. Conversion was poor at the low ratio. Additional reagents did not improve the conversion.
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ISBN 13 :
Total Pages : 13 pages
Book Rating : 4.:/5 (684 download)
Download or read book Exploratory Research on Novel Coal Liquefaction Concept. [Quarterly Report], January 1--March 31, 1996 written by and published by . This book was released on 1996 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt: Work this quarter concentrated on evaluating the effects of low- severity, first stage reaction conditions on coal conversions, exploring the effect of solvent-to-coal ratio on filtration performance, exploring the effects of pretreatment on dispersed catalysts for hydrotreating tests, and the installation and calibration of a simulated distillation instrument. Additional work included continued review of the technical and patent literature and expansion of the annotated bibliography.
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ISBN 13 :
Total Pages : 6 pages
Book Rating : 4.:/5 (683 download)
Download or read book Exploratory Research on Novel Coal Liquefaction Concept. [Quarterly Report], May 24--September 30, 1995 written by and published by . This book was released on 1995 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt: CONSOL Inc., the University of Kentucky/Center for Applied Energy Research (CAER), and LDP Associates are conducting a three-year research program to explore the technical and economic feasibility of a novel direct coal liquefaction concept. The purpose of this research program is to explore a new approach to direct coal liquefaction in which the primary coal dissolution step is effected by chemical rather than thermal cleavage of bonds in the coal. This is done at a temperature which is significantly lower than that typically used in conventional coal liquefaction. Reaction at this low temperature results in high conversion of the coal to a solubilized form, with little hydrocarbon gas make, and avoids the thermally induced retrograde reactions which are unavoidable in conventional thermal processes. In addition, for low-rank coals, a substantial portion of the oxygen in the coal is removed as CO and CO2 during the dissolution. The higher selectivity to liquid products and rejection of oxygen as carbon oxides should result in improved hydrogen utilization. The basis of the novel concept is the discovery made by CONSOL R & D that certain hydride transfer agents are very active for coal dissolution at temperatures in the range of 350°C. Because of the exploratory nature of the research, the project is divided into sequential tasks that are designed to first evaluate key elements of the process is presented for the following tasks: management plan; evaluation of process steps; engineering and economic study and reporting.
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ISBN 13 :
Total Pages : 12 pages
Book Rating : 4.:/5 (684 download)
Download or read book Exploratory Research on Novel Coal Liquefaction Concept. Progress Report, April 1, 1996--June 30, 1996 written by and published by . This book was released on 1996 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt: Activities this quarter were conducted under Tasks 2, 3, and 5. Task 2 work concentrated on evaluating the effects of low-severity, first-stage reaction conditions on coal conversions of lignite, subbituminous, and bituminous coals. The impact of artificially weathering bituminous coal was investigated. Large quantities of first-stage product were made using the one-liter reactor for subsequent filtration and catalytic upgrading tests. Test conditions and coal conversions for all microautoclave and one-liter tests made this quarter are presented. Filtration tests examined lignite, subbituminous, and bituminous coal products. The effects on resid conversion of second-stage reaction conditions and catalyst recycle were studied. Task 3 work included the successful transfer of first-stage reactor products to a receiver and the design of an interstage filter. Task 5 work included an ongoing review of the technical and patent literature and expansion of the annotated bibliography. Mass and elemental balances were obtained for selected tests.
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ISBN 13 :
Total Pages : 16 pages
Book Rating : 4.:/5 (684 download)
Download or read book Exploratory Research on Novel Coal Liquefaction Concept. July 1 Through September 30, 1996 written by and published by . This book was released on 1996 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt: Activities this quarter were conducted under Tasks 2, 3, and 5. Task 2 work continued to evaluate the effects of low-severity, first-stage reaction conditions on coal conversions of lignite and subbituminous coal. Solvent type, solvent-to-dry-coal ratio, and substitution of CO and CO/methanol for hydride ion reagents were investigated in microautoclave tests. Large quantities of first-stage product were made using the one-liter reactor for subsequent filtration and catalytic upgrading tests. Filtration was performed on three one- liter autoclave products; each one requiring different filtration conditions. A second-stage catalytic upgrading parametric study was completed. In Task 3, designs were completed for both the large-scale filtration apparatus and the large-scale second-stage catalytic reactor system.
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ISBN 13 :
Total Pages : 11 pages
Book Rating : 4.:/5 (683 download)
Download or read book Exploratory Research on Novel Coal Liquefaction Concept. Technical Progress, October 1--December 31, 1995 written by and published by . This book was released on 1995 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of this coordinated research program is to explore a new approach to direct coal liquefaction in which the primary coal dissolution step is effected by chemical rather than thermal cleavage of bonds in the coal. This is done at a temperature which is significantly lower than that typically used in conventional coal liquefaction. Reaction at this low temperature results in high conversion of the coal to a solubilized form, with little hydrocarbon gas formed, and avoids the thermally induced retrograde reactions which are unavoidable in conventional thermal processes. In addition, for low-rank coals, a substantial portion of the oxygen in the coal is removed as CO and CO2 during the dissolution. The higher selectivity to liquid products and rejection of oxygen as carbon oxides should result in improved hydrogen utilization. The basis of this novel concept is the discovery made by CONSOL R & D that certain hydride transfer agents are very active for coal dissolution at temperatures in the range of 350°C. Activities during this quarter were conducted under Tasks 2 and 5. The Task 2 work was concentrated on evaluating the effects of first-stage reaction variables on coal conversion using the microautoclave, construction of a 1L reactor system for producing large quantities of first-stage reaction products, microfiltration tests with the first-stage products, and trial operation of the second-stage hydrotreater. Task 5 work was concentrated on the literature survey and defining the cost of production of the hydride ion reagent.
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ISBN 13 :
Total Pages : 44 pages
Book Rating : 4.:/5 (727 download)
Download or read book Cooperative Research Program in Coal Liquefaction written by and published by . This book was released on 1992 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt: Research continues on coal liquefaction in the following areas: (1) Iron Based Catalysts for Coal Liquefaction; (2) Exploratory Research on Coal Conversion; (3) Novel Coal Liquefaction Concepts; (4) Novel Catalysts for Coal Liquefaction. (VC).
Download or read book Insaniat written by and published by . This book was released on 1975 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : University of Utah. Department of Mining and Fuels Engineering
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ISBN 13 :
Total Pages : 96 pages
Book Rating : 4.F/5 ( download)
Download or read book Applied research and evaluation of process concepts for liquefaction and gasification of western coals written by University of Utah. Department of Mining and Fuels Engineering and published by . This book was released on 1976 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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ISBN 13 :
Total Pages : 229 pages
Book Rating : 4.:/5 (727 download)
Download or read book Cooperative Research Program in Coal Liquefaction. Quarterly Report, August 1, 1991--October 31, 1991 written by and published by . This book was released on 1991 with total page 229 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Quarterly Report on coal liquefaction research includes discussion in the areas of (1) Iron Based Catalysts for Coal Liquefaction; (2) Exploratory Research on Coal Conversion; (3) Novel Coal Liquefaction Concepts; (4) Novel Catalysts for Coal Liquefaction. (VC).
Author : University of Utah. Department of Mining, Metallurgical, and Fuel Engineering
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ISBN 13 :
Total Pages : 96 pages
Book Rating : 4.:/5 (3 download)
Download or read book Applied research and evaluation of process concepts for liquefaction and gasification of western coals written by University of Utah. Department of Mining, Metallurgical, and Fuel Engineering and published by . This book was released on 1976 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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ISBN 13 :
Total Pages : 44 pages
Book Rating : 4.:/5 (727 download)
Download or read book Cooperative Research Program in Coal Liquefaction. Quarterly Report, November 1, 1991--January 31, 1992 written by and published by . This book was released on 1992 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt: Research continues on coal liquefaction in the following areas: (1) Iron Based Catalysts for Coal Liquefaction; (2) Exploratory Research on Coal Conversion; (3) Novel Coal Liquefaction Concepts; (4) Novel Catalysts for Coal Liquefaction. (VC).
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ISBN 13 :
Total Pages : 922 pages
Book Rating : 4.3/5 (129 download)
Download or read book Energy Research Abstracts written by and published by . This book was released on 1993 with total page 922 pages. Available in PDF, EPUB and Kindle. Book excerpt:
