Coal liquefaction process

C - Chemistry – Metallurgy – 10 – G

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196/5.2

C10G 1/04 (2006.01) C10G 1/06 (2006.01) C10G 45/00 (2006.01)

Patent

CA 1079662

ABSTRACT OF DISCLOSURE 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 350-850°F. range, and preferably within about the 400-700°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.

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