Process for liquefying coal

Details Process for liquefying coal Process for liquefying coal

1976-03-26

1978-09-05

Wolk, Morris O.

Mineral oils: processes and products

Phenolic or toxic oils

201 8, 201 23, C10G 104, C10B 5500

Patent

active

041117867

ABSTRACT:
Process for manufacturing reformed coal which comprises the steps of (a) dispersing coal into a mixed oil which is comprised of a coal oil having a boiling point between about 150.degree. C. and 500.degree. C. and a petroleum oil having a boiling point higher than that of kerosene; (b) subjecting the coal and oil dispersion to hydrogenation conditions sufficient to depolymerize the coal; (c) separating a substantially liquified coal solution from the product of hydrogenation, and (d) distilling the liquified coal solution to recover a reformed coal. Preferably, a portion of the coal oil is recycled from the distillation stage and a portion of the hydrogen needed for hydrogenation is produced from light fractions from the distillation stage.

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Nelson; Petroleum Refinery Engineering 4th Edition, Chapters 5 and 6.

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