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Title: 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:
 [1];  [2];  [3]
  1. (Macungie, PA)
  2. (Bethlehem, PA)
  3. (St. Croix, VI)
Issue Date:
Research Org.:
INTERNATIONAL COAL REFINING CO
OSTI Identifier:
864569
Patent Number(s):
4387015
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; 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}
}

Patent:

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