Read Books Online and Download eBooks, EPub, PDF, Mobi, Kindle, Text Full Free.
Hydrogen Donor Coal Liquefaction Process
Download Hydrogen Donor Coal Liquefaction Process full books in PDF, epub, and Kindle. Read online Hydrogen Donor Coal Liquefaction Process ebook anywhere anytime directly on your device. Fast Download speed and no annoying ads. We cannot guarantee that every ebooks is available!
Book Synopsis Hydrogen-donor Coal Liquefaction Process by :
Download or read book Hydrogen-donor Coal Liquefaction Process written by and published by . This book was released on 1980 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Improved liquid yields are obtained during the hydrogen-donor solvent liquefaction of coal and similar carbonaceous solids by maintaining a higher concentration of material having hydrogenation catalytic activity in the downstream section of the liquefaction reactor system than in the upstream section of the system.
Download or read book Coal Liquefaction written by and published by . This book was released on 1979 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Coal Liquefaction by : United States. Division of Coal Conversion
Download or read book Coal Liquefaction written by United States. Division of Coal Conversion and published by . This book was released on 1977 with total page 386 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Hydrogen Donor Solvent Coal Liquefaction Process by :
Download or read book Hydrogen Donor Solvent Coal Liquefaction Process written by and published by . This book was released on 1978 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: An indigenous hydrocarbon product stream boiling within a range of from about C.sub. 1 -700.degree. F., preferably C.sub. 1 -400.degree. F., is treated to produce an upgraded hydrocarbon fuel component and a component which can be recycled, with a suitable donor solvent, to a coal liquefaction zone to catalyze the reaction. In accordance therewith, a liquid hydrocarbon fraction with a high end boiling point range up to about 700.degree. F., preferably up to about 400.degree. F., is separated from a coal liquefaction zone effluent, the separated fraction is contacted with an alkaline medium to provide a hydrocarbon phase and an aqueous extract phase, the aqueous phase is neutralized, and contacted with a peroxygen compound to convert indigenous components of the aqueous phase of said hydrocarbon fraction into catalytic components, such that the aqueous stream is suitable for recycle to the coal liquefaction zone. Naturally occurring phenols and alkyl substituted phenols, found in the aqueous phase, are converted, by the addition of hydroxyl constituents to phenols, to dihydroxy benzenes which, as disclosed in copending Application Ser. Nos. 686,813 now U.S. Pat. No. 4,049,536; 686,814 now U.S. Pat. No. 4,049,537; 686,827 now U.S. Pat. No. 4,051,012 and 686,828, K.W. Plumlee et al, filed May 17, 1976, are suitable hydrogen transfer catalysts.
Book Synopsis Coal Liquefaction and Gasification Technologies by : Edward C. Mangold
Download or read book Coal Liquefaction and Gasification Technologies written by Edward C. Mangold and published by Ann Arbor Science Publishers. This book was released on 1982 with total page 296 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Coal Liquefaction by : Darrell Duayne Whitehurst
Download or read book Coal Liquefaction written by Darrell Duayne Whitehurst and published by . This book was released on 1980 with total page 408 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis EDS Coal Liquefaction Process Development: Phase IV by : Exxon Research and Engineering Company
Download or read book EDS Coal Liquefaction Process Development: Phase IV written by Exxon Research and Engineering Company and published by . This book was released on 1978 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Progress in Donor Assisted Coal Liquefaction by :
Download or read book Progress in Donor Assisted Coal Liquefaction written by and published by . This book was released on 1993 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt: The role of hydrogen donor compounds in coal liquefaction has been extensively investigated since the mid 1960's using model compounds and process derived hydrogen donor solvents. Our recent research and that of other investigators have shown that two model compounds in particular have great efficacy in solvating low rank coals. 1,2,3,10b tetrahydrofluoranthene (H4Fl) and 1,2,3,6,7,8 hexahydropyrene (H6Py) have been used to dissolve Wyodak coal to> 95% soluble material as measured by tetrahydrofuran (THF). Although these hydrogen donors are very effective, they may not be found in any significant concentrations in actual liquefaction process recycle solvents. Therefore, studies with process derived recycle materials are necessary to understand donor solvent chemistry. The objective of this paper is to present results of solvent hydrogenation experiments using heavy distillate solvents produced during testing at the Wilsonville Advanced Coal Liquefaction Test Facility. We evaluated the impact of hydrogenation conditions upon hydrogen donor formation in process derived distillates and compared these process derived solvents with the highly effective H4Fl and H6Py donors in coal liquefaction tests. This paper presents data on reaction conditions used for distillate hydrotreating and subsequent coal liquefaction, with an aim toward understanding the relationship between reaction conditions and donor solvent quality in recycle distillates.
Book Synopsis Reaction Engineering in Direct Coal Liquefaction by : Yatish T. Shah
Download or read book Reaction Engineering in Direct Coal Liquefaction written by Yatish T. Shah and published by Addison Wesley Publishing Company. This book was released on 1981 with total page 424 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Coal Liquefaction written by and published by . This book was released on 1976 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Coal Liquefaction Process Streams Characterization and Evaluation: Assessment of Hydroaromatic Content and Hydrogen Donor Ability of Coal Liquefaction Intermediates by Means of Catalytic Dehydrogenation by :
Download or read book Coal Liquefaction Process Streams Characterization and Evaluation: Assessment of Hydroaromatic Content and Hydrogen Donor Ability of Coal Liquefaction Intermediates by Means of Catalytic Dehydrogenation written by and published by . This book was released on 1994 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis General Quantitative Model for Coal Liquefaction Kinetics by :
Download or read book General Quantitative Model for Coal Liquefaction Kinetics written by and published by . This book was released on 1980 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: A mechanism for coal liquefaction, based on the concept of thermal cleavage-hydrogen capping donor complexes, is proposed and the quantitative agreement between the derived rate laws and the kinetic data obtained from fifteen publications is presented. The mechanism provides rate laws which describe the preasphaltene, asphaltene, oil and gas time/yield curves for the coal liquefaction process. A simplistic dissolution model is presented and used to relate the proposed mechanism to the experimentally observed products. Based on the quality of the mechanistic fit to the reported coal liquefaction systems, which cover a diverse range of reaction conditions, coal types and donor solvent compositions, it is proposed that the donor solvent/thermal bond cleavage/hydrogen capping mechanism provides a good, quantitative description of the rate limiting process. Interpretation of the rate constant/temperature dependencies in terms of transition state theory indicates formation of the activated complex can involve either physically or chemically controlled steps. A uniform free energy of activation of 52 kcal was found for the diverse liquefaction systems indicating a common transition state describes the reactions. Thus the proposed mechanism unifies the diverse liquefaction kinetic data by using a set of uniform reaction sequences, which have a common transition state, to describe the conversion chemistry. The mechanism thereby creates a common base for intercomparison, interpretation and evaluation of coal conversion for the broad range of processes currently being investigated in the liquefaction field.
Book Synopsis Coal Liquefaction Process Wherein Jet Fuel, Diesel Fuel And/or ASTM No. 2 Fuel Oil is Recovered by :
Download or read book Coal Liquefaction Process Wherein Jet Fuel, Diesel Fuel And/or ASTM No. 2 Fuel Oil is Recovered written by and published by . This book was released on 1982 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: An improved process for the liquefaction of coal and similar solid carbonaceous materials wherein a hydrogen donor solvent or diluent derived from the solid carbonaceous material is used to form a slurry of the solid carbonaceous material and wherein the naphthenic components from the solvent or diluent fraction are separated and used as jet fuel components. The extraction increases the relative concentration of hydroaromatic (hydrogen donor) components and as a result reduces the gas yield during liquefaction and decreases hydrogen consumption during said liquefaction. The hydrogenation severity can be controlled to increase the yield of naphthenic components and hence the yield of jet fuel and in a preferred embodiment jet fuel yield is maximized while at the same time maintaining solvent balance.
Book Synopsis Comparison of Coal Liquefaction Processes by :
Download or read book Comparison of Coal Liquefaction Processes written by and published by . This book was released on 1978 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Roles of Solvent, Catalyst and Hydrogen Donation in Coal Liquefaction/co-processing Reactions by : Frankie Nathaniel Cassell
Download or read book The Roles of Solvent, Catalyst and Hydrogen Donation in Coal Liquefaction/co-processing Reactions written by Frankie Nathaniel Cassell and published by . This book was released on 1987 with total page 606 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Aspects of the chemistry of hydrogen donor solvent coal liquefaction by : Jan J. de Vlieger
Download or read book Aspects of the chemistry of hydrogen donor solvent coal liquefaction written by Jan J. de Vlieger and published by . This book was released on 1988 with total page 99 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Hydrogen Donor Solven Performance in Coal Liquefaction by : Christopher P. Eppig
Download or read book Hydrogen Donor Solven Performance in Coal Liquefaction written by Christopher P. Eppig and published by . This book was released on 1980 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt:
