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Title: Solvent tailoring in coal liquefaction. Quarterly report, July-September 1983

Abstract

A series of twenty-three aromatic compounds were ranked for their donor solvent efficacy for the dissolution of Western Kentucky No. 9/14 coal. The transfer of hydrogen from the solvent to the coal fragments, as measured by coal conversion, was examined at three levels of available hydrogen. The hydrogen donors are ranked according to their ability to convert coal to THF solubles. Aromatic analogs of the donors showed little ability to convert coal to THF solubles. Factors which influence hydrogen donation include the presence of heteroatoms or substituents both internal and external to the aromatic or hydroaromatic rings, the degree of hydrogenation, the aromaticity or nonaromaticity of the hydroaromatics, and the presence of five-membered rings. A relationship between heats of formation and hydrogen donor ability is shown for hydroaromatics within two ring or three ring homologous series. A model hydrogen acceptor, benzophenone, is also used to rank donors. No correlation exists in the ranking of hydrogen donors by the model acceptor used in this work and in other experimental studies and that obtained by conversion of Western Kentucky coal at typical liquefaction conditions. 24 references.

Authors:
; ; ;
Publication Date:
Research Org.:
Auburn Univ., AL (USA). Coal Conversion Lab.
OSTI Identifier:
7090349
Report Number(s):
DOE/PC/30209-T9
ON: DE84014514
DOE Contract Number:
FG22-80PC30209
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
01 COAL, LIGNITE, AND PEAT; COAL LIQUEFACTION; ORGANIC SOLVENTS; CHEMICAL REACTIONS; COMPARATIVE EVALUATIONS; BENZOPHENONE; COAL; DISSOLUTION; EXPERIMENTAL DATA; HYDROGEN TRANSFER; STRUCTURAL MODELS; CARBONACEOUS MATERIALS; DATA; ENERGY SOURCES; FOSSIL FUELS; FUELS; INFORMATION; KETONES; LIQUEFACTION; MATERIALS; NUMERICAL DATA; ORGANIC COMPOUNDS; SOLVENTS; THERMOCHEMICAL PROCESSES; 010405* - Coal, Lignite, & Peat- Hydrogenation & Liquefaction

Citation Formats

Tarrer, A.R., Curtis, C.W., Guin, J.A., and Williams, D.C.. Solvent tailoring in coal liquefaction. Quarterly report, July-September 1983. United States: N. p., 1983. Web. doi:10.2172/7090349.
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Tarrer, A.R., Curtis, C.W., Guin, J.A., & Williams, D.C.. Solvent tailoring in coal liquefaction. Quarterly report, July-September 1983. United States. doi:10.2172/7090349.
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Tarrer, A.R., Curtis, C.W., Guin, J.A., and Williams, D.C.. Sat . "Solvent tailoring in coal liquefaction. Quarterly report, July-September 1983". United States. doi:10.2172/7090349. https://www.osti.gov/servlets/purl/7090349.
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@article{osti_7090349,
title = {Solvent tailoring in coal liquefaction. Quarterly report, July-September 1983},
author = {Tarrer, A.R. and Curtis, C.W. and Guin, J.A. and Williams, D.C.},
abstractNote = {A series of twenty-three aromatic compounds were ranked for their donor solvent efficacy for the dissolution of Western Kentucky No. 9/14 coal. The transfer of hydrogen from the solvent to the coal fragments, as measured by coal conversion, was examined at three levels of available hydrogen. The hydrogen donors are ranked according to their ability to convert coal to THF solubles. Aromatic analogs of the donors showed little ability to convert coal to THF solubles. Factors which influence hydrogen donation include the presence of heteroatoms or substituents both internal and external to the aromatic or hydroaromatic rings, the degree of hydrogenation, the aromaticity or nonaromaticity of the hydroaromatics, and the presence of five-membered rings. A relationship between heats of formation and hydrogen donor ability is shown for hydroaromatics within two ring or three ring homologous series. A model hydrogen acceptor, benzophenone, is also used to rank donors. No correlation exists in the ranking of hydrogen donors by the model acceptor used in this work and in other experimental studies and that obtained by conversion of Western Kentucky coal at typical liquefaction conditions. 24 references.},
doi = {10.2172/7090349},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Sat Jan 01 00:00:00 EST 1983},
month = {Sat Jan 01 00:00:00 EST 1983}
}
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Technical Report:
View Technical Report (1.31 MB)
DOI:  10.2172/7090349
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