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:
-
- Allentown, PA
- Issue Date:
- Research Org.:
- INTERNATIONAL COAL REFINING CO
- OSTI Identifier:
- 865971
- Patent Number(s):
- 4609455
- Assignee:
- International Coal Refining Company (Allentown, PA)
- Patent Classifications (CPCs):
-
C - CHEMISTRY C10 - PETROLEUM, GAS OR COKE INDUSTRIES C10G - CRACKING HYDROCARBON OILS
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10S - TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- 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. 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}
}
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