Coal liquefaction quenching process

Details Coal liquefaction quenching process Coal liquefaction quenching process

1982-09-30

1983-06-07

Gantz, Delbert E.

Mineral oils: processes and products

Phenolic or toxic oils

208 10, 208 48Q, C10G 100, C10G 106

Patent

active

043870155

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.

REFERENCES:
patent: 2928886 (1960-03-01), Nisbet et al.
patent: 3429942 (1969-02-01), Nelson et al.
patent: 4150716 (1979-04-01), Ozaki et al.
patent: 4216074 (1980-08-01), Simone

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