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Title: Coal liquefaction with preasphaltene recycle

Abstract

A coal liquefaction system is disclosed with a novel preasphaltene recycle from a supercritical extraction unit to the slurry mix tank wherein the recycle stream contains at least 90% preasphaltenes (benzene insoluble, pyridine soluble organics) with other residual materials such as unconverted coal and ash. This subject process results in the production of asphaltene materials which can be subjected to hydrotreating to acquire a substitute for No. 6 fuel oil. The preasphaltene-predominant recycle reduces the hydrogen consumption for a process where asphaltene material is being sought.

Inventors:
 [1];  [1]
  1. (Allentown, PA)
Publication Date:
Research Org.:
INTERNATIONAL COAL REFINING CO
OSTI Identifier:
865971
Patent Number(s):
US 4609455
Assignee:
International Coal Refining Company (Allentown, PA) OSTI
DOE Contract Number:  
AC05-78OR03054
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
coal; liquefaction; preasphaltene; recycle; disclosed; novel; supercritical; extraction; unit; slurry; mix; tank; stream; contains; 90; preasphaltenes; benzene; insoluble; pyridine; soluble; organics; residual; materials; unconverted; ash; subject; process; results; production; asphaltene; subjected; hydrotreating; acquire; substitute; fuel; oil; preasphaltene-predominant; reduces; hydrogen; consumption; material; sought; unconverted coal; recycle stream; stream contains; process results; fuel oil; supercritical extraction; coal liquefaction; slurry mix; soluble organics; hydrogen consumption; traction unit; soluble organic; preasphaltene recycle; /208/

Citation Formats

Weimer, Robert F., and Miller, Robert N. Coal liquefaction with preasphaltene recycle. United States: N. p., 1986. Web.
Weimer, Robert F., & Miller, Robert N. Coal liquefaction with preasphaltene recycle. United States.
Weimer, Robert F., and Miller, Robert N. Wed . "Coal liquefaction with preasphaltene recycle". United States. doi:. https://www.osti.gov/servlets/purl/865971.
@article{osti_865971,
title = {Coal liquefaction with preasphaltene recycle},
author = {Weimer, Robert F. and Miller, Robert N.},
abstractNote = {A coal liquefaction system is disclosed with a novel preasphaltene recycle from a supercritical extraction unit to the slurry mix tank wherein the recycle stream contains at least 90% preasphaltenes (benzene insoluble, pyridine soluble organics) with other residual materials such as unconverted coal and ash. This subject process results in the production of asphaltene materials which can be subjected to hydrotreating to acquire a substitute for No. 6 fuel oil. The preasphaltene-predominant recycle reduces the hydrogen consumption for a process where asphaltene material is being sought.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Wed Jan 01 00:00:00 EST 1986},
month = {Wed Jan 01 00:00:00 EST 1986}
}

Patent:

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