Staged temperature coal conversion process

Details Staged temperature coal conversion process Staged temperature coal conversion process

1980-08-25

1982-02-02

Gantz, Delbert E.

Mineral oils: processes and products

Products and compositions

Lubricating oils

208 8LE, C10G 100, C10G 106

Patent

active

043138160

ABSTRACT:
Coal or similar liquefiable carbonaceous solids are converted into lower molecular weight liquids by contacting the feed solids with molecular hydrogen in the absence of externally added hydrocarbon liquids under liquefaction conditions during sequential residence in two or more liquefaction zones arranged in series and operated such that the temperature in each zone increases from the first to the final zone. The effluent from each liquefaction zone is passed to the next succeeding higher temperature zone in the series. No hydrocarbon liquids are added to the first zone in the series and the only liquids present in each succeeding zone of the series are the liquids in the effluent from the preceding zone. Liquid hydrocarbonaceous products are recovered from the effluent withdrawn from the last zone.

REFERENCES:
patent: 3030297 (1962-04-01), Schroeder
patent: 3375175 (1968-03-01), Eddinger et al.
patent: 3488279 (1970-01-01), Schulman
patent: 3692662 (1972-09-01), Wilson et al.
patent: 3966585 (1976-06-01), Gray et al.
patent: 4123347 (1978-10-01), Maa
Bureau of Mines Bulletin 622 Hawk et al. U.S. Dept. of the Interior Bureau of Mines 1965.

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