Coal depolymerization and hydroprocessing

Details Coal depolymerization and hydroprocessing Coal depolymerization and hydroprocessing

1992-08-04

1994-03-15

Breneman, R. Bruce

Mineral oils: processes and products

By treatment of solid mineral, e.g., coal liquefaction, etc.

208420, 208421, 208422, 208424, 208428, 208435, C10G 100, C10G 106, C10G 108

Patent

active

052943496

ABSTRACT:
A process for hydroprocessing coal to hydrocarbon oils wherein coal is depolymerized at low temperatures by contacting finely divided coal with a hard acid and soft base. The depolymerized coal is then hydroprocessed to hydrocarbon oils by forming a mixture with a coal conversion catalyst or precursor thereof, and hydroprocessing the mixture at temperatures of from 250.degree. to 550.degree. C. and hydrogen partial pressures of from 2100 to 35000 kPa.

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