Coal hydrogenation with selective recycle of liquid to reactor

Details Coal hydrogenation with selective recycle of liquid to reactor Coal hydrogenation with selective recycle of liquid to reactor

1975-11-28

1977-08-30

Davis, C.

Mineral oils: processes and products

Products and compositions

Lubricating oils

C10G 108

Patent

active

040453294

ABSTRACT:
Coal is hydrogenated in an upflow, random motion, gas-liquid-catalyst process in which the heavy liquids (800.degree. F to 1000.degree. F) are recycled to the reactor to optimize production of preferred 400.degree.-800.degree. F boiling range end product liquids.
The optimization is accomplished by not recycling to the reactor any liquid fraction boiling between about 600.degree. and 800.degree. F.

REFERENCES:
patent: 2987465 (1961-06-01), Johanson
patent: 3519553 (1970-07-01), Johanson et al.
patent: 3540995 (1970-11-01), Wolk et al.
patent: 3607719 (1971-09-01), Johnson et al.
patent: 3617474 (1971-11-01), Stotler et al.

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