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Title: Hydrogen donor solvent coal liquefaction process

Abstract

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, filedmore » May 17, 1976, are suitable hydrogen transfer catalysts.« less

Inventors:
 [1]
  1. Baytown, TX
Publication Date:
OSTI Identifier:
863060
Patent Number(s):
US 4085033
Assignee:
Exxon Research & Engineering Co. (Linden, NJ)
DOE Contract Number:  
E(49-18)-2353
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
hydrogen; donor; solvent; coal; liquefaction; process; indigenous; hydrocarbon; product; stream; boiling; range; -700; degree; preferably; -400; treated; produce; upgraded; fuel; component; recycled; suitable; zone; catalyze; reaction; accordance; therewith; liquid; fraction; 700; 400; separated; effluent; contacted; alkaline; medium; provide; phase; aqueous; extract; neutralized; peroxygen; compound; convert; components; catalytic; recycle; naturally; occurring; phenols; alkyl; substituted; found; converted; addition; hydroxyl; constituents; dihydroxy; benzenes; disclosed; copending; application; ser; nos; 686; 813; 049; 536; 814; 537; 827; 051; 012; 828; plumlee; filed; 17; 1976; transfer; catalysts; oxygen compound; aqueous stream; alkyl substituted; extract phase; liquid hydrocarbon; hydrogen donor; naturally occurring; donor solvent; liquefaction zone; product stream; hydrocarbon fuel; liquefaction process; coal liquefaction; aqueous phase; hydrocarbon product; application ser; solvent coal; hydrocarbon fraction; hydrogen transfer; fuel component; carbon product; /208/

Citation Formats

Plumlee, Karl W. Hydrogen donor solvent coal liquefaction process. United States: N. p., 1978. Web.
Plumlee, Karl W. Hydrogen donor solvent coal liquefaction process. United States.
Plumlee, Karl W. Sun . "Hydrogen donor solvent coal liquefaction process". United States. https://www.osti.gov/servlets/purl/863060.
@article{osti_863060,
title = {Hydrogen donor solvent coal liquefaction process},
author = {Plumlee, Karl W},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1978},
month = {1}
}

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