Process for coal liquefaction employing a superior coal liquefac

Details Process for coal liquefaction employing a superior coal liquefac Process for coal liquefaction employing a superior coal liquefac

1982-01-11

1983-09-20

Gantz, Delbert E.

Mineral oils: processes and products

Products and compositions

Lubricating oils

208 8LE, C10G 106, C10G 100

Patent

active

044054378

ABSTRACT:
A process for liquefying coal utilizing an indigenously derived solvent enriched in basic nitrogen heterocyclic compounds. Particulate coal is slurried with an aromatic hydrocarbon distillate start-up solvent. The slurry is reacted under predetermined conditions in a liquefaction reactor to form distillable and substantially nondistillable coal products. The distillables are removed and the nondistillable coal products are fractionated to produce a fraction enriched in basic nitrogen heterocyclic compounds. A portion of this fraction is recycled together with the distillable solvent to the coal liquefaction reactor. The blended solvent is slurried with coal and upon treatment in the liquefaction reactor converts the coal to distillate and soluble coal products in a higher yield than possible in a process not employing a solvent enriched in basic nitrogen heterocyclic compounds.

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patent: 4300994 (1981-11-01), Liotta

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