Coal liquefaction quenching process

Patent · Sat Jan 01 00:00:00 EST 1983

OSTI ID:864569

Thorogood, Robert M.; Yeh, Chung-Liang; Donath, Ernest E.

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.

• Research Organization: International Coal Refining Company, Allentown, PA (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC05-78OR03054
• Assignee: International Coal Refining Company (Allentown, PA)
• Patent Number(s): 4,387,015
• Application Number: 06/431511
• OSTI ID: 864569
• Resource Relation: Patent File Date: 1982 Sep 30
• Country of Publication: United States
• Language: English

Related Subjects

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/