Coal liquefaction quenching process
Abstract
There is described an improved coal liquefaction quenching process which prevents the formation of coke with a minimum reduction of thermal efficiency of the coal liquefaction process. In the process, the rapid cooling of the liquid/solid products of the coal liquefaction reaction is performed without the cooling of the associated vapor stream to thereby prevent formation of coke and the occurrence of retrograde reactions. The rapid cooling is achieved by recycling a subcooled portion of the liquid/solid mixture to the lower section of a phase separator that separates the vapor from the liquid/solid products leaving the coal reactor.
- Inventors:
- Issue Date:
- Research Org.:
- International Coal Refining Company, Allentown, PA (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 864569
- Patent Number(s):
- 4387015
- Application Number:
- 06/431511
- Assignee:
- International Coal Refining Company (Allentown, PA)
- Patent Classifications (CPCs):
-
C - CHEMISTRY C10 - PETROLEUM, GAS OR COKE INDUSTRIES C10G - CRACKING HYDROCARBON OILS
- DOE Contract Number:
- AC05-78OR03054
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 1982 Sep 30
- Country of Publication:
- United States
- Language:
- English
- Subject:
- coal; liquefaction; quenching; process; described; improved; prevents; formation; coke; minimum; reduction; thermal; efficiency; rapid; cooling; liquid; solid; products; reaction; performed; associated; vapor; stream; prevent; occurrence; retrograde; reactions; achieved; recycling; subcooled; portion; mixture; section; phase; separator; separates; leaving; reactor; solid products; thermal efficiency; rapid cooling; liquefaction process; coal liquefaction; vapor stream; solid product; solid mixture; improved coal; prevent formation; quenching process; coal reactor; liquefaction quenching; /208/
Citation Formats
Thorogood, Robert M., Yeh, Chung-Liang, and Donath, Ernest E. Coal liquefaction quenching process. United States: N. p., 1983.
Web.
Thorogood, Robert M., Yeh, Chung-Liang, & Donath, Ernest E. Coal liquefaction quenching process. United States.
Thorogood, Robert M., Yeh, Chung-Liang, and Donath, Ernest E. Sat .
"Coal liquefaction quenching process". United States. https://www.osti.gov/servlets/purl/864569.
@article{osti_864569,
title = {Coal liquefaction quenching process},
author = {Thorogood, Robert M. and Yeh, Chung-Liang and Donath, Ernest E.},
abstractNote = {There is described an improved coal liquefaction quenching process which prevents the formation of coke with a minimum reduction of thermal efficiency of the coal liquefaction process. In the process, the rapid cooling of the liquid/solid products of the coal liquefaction reaction is performed without the cooling of the associated vapor stream to thereby prevent formation of coke and the occurrence of retrograde reactions. The rapid cooling is achieved by recycling a subcooled portion of the liquid/solid mixture to the lower section of a phase separator that separates the vapor from the liquid/solid products leaving the coal reactor.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1983},
month = {1}
}
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