Coal liquefaction process

Details Coal liquefaction process Coal liquefaction process

1978-08-21

1981-02-24

Gantz, Delbert E.

Mineral oils: processes and products

Phenolic or toxic oils

208 8R, 208 10, 201 9, 201 23, C10G 100, C10G 106, C10B 5708, C10B 5300

Patent

active

042526337

ABSTRACT:
An integrated coal pretreatment, liquefaction and gasification process is provided in which particulate coal is contacted with a vapor phase hydrogen donor solvent to swell the coal particles. The swollen coal particles are subjected to coal liquefaction conditions at relatively low temperatures. The solid residue of the coal liquefaction stage is subjected to pyrolysis conditions at relatively high temperatures to produce an additional amount of hydrocarbonaceous oil. The solid residue of the pyrolysis stage is gasified by treatment with steam and a molecular oxygen-containing gas to produce a hydrogen-containing gas.

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patent: 4075079 (1978-02-01), Lang
patent: 4082643 (1978-04-01), Gotsis et al.
patent: 4090942 (1978-05-01), Reuther et al.

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