Coal liquefaction process

Details Coal liquefaction process Coal liquefaction process

1976-05-17

1977-09-27

Gantz, Delbert E.

Mineral oils: processes and products

Phenolic or toxic oils

C10G 104

Patent

active

040510123

ABSTRACT:
A process for liquefying a particulate coal feed to produce useful petroleum-like liquid products by steps which include: (a) contacting, in a liquefaction zone, said coal feed with a hydrogen donor solvent at temperature and pressure sufficient to hydroconvert and liquefy the coal, (b) separating the product from the liquefaction zone by distillation into fractions inclusive of a liquid solvent fraction which contains at least 30 weight percent, and preferably at least 50 weight percent hydrogen donor compounds, particularly those fractions boiling within about the 350.degree.-850.degree. F. range, and preferably within about the 400.degree.-700.degree. F. range, (c) hydrotreating said liquid solvent fraction in a hydrogenation zone in the presence of a quinone catalyst, and (d) recycling the hydrogenated liquid solvent mixture to said coal liquefaction zone.

REFERENCES:
patent: 3700583 (1972-10-01), Salamony et al.

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