Coal liquefaction product deashing process

Details Coal liquefaction product deashing process Coal liquefaction product deashing process

1977-02-01

1978-06-13

Gantz, Delbert E.

Mineral oils: processes and products

Products and compositions

Lubricating oils

208 8, C10G 108

Patent

active

040947661

ABSTRACT:
Liquefaction of coal is effected by extraction of coal by a distillable solvent in the presence of hydrogen under conditions selected to produce a coal liquefaction product, the major portion of which is distillable. The effluent slurry product is vacuum distilled to recover the distillables including the solvent. The bottoms fraction is subjected to solvent treatment or fractionation to selectively recover the lower molecular weight portion, which portion is hydrogenated to yield distillate fuels. The remainder of the bottoms fraction is used as feed to a gasifier to make a hydrogen-rich gas or a methane-rich gas as desired.

REFERENCES:
patent: 2871181 (1959-01-01), Kulik
patent: 3010893 (1961-11-01), Kulik
patent: 3598718 (1971-08-01), Gleim et al.
patent: 4028219 (1977-06-01), Baldwin et al.

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