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U.S. Department of Energy
Office of Scientific and Technical Information

Process for liquefying coal

Patent ·
OSTI ID:5418544
A process for liquefying coal to produce liquid fuel and pitch-like substances suitable as starting materials for various carbonaceous materials is described, which process comprises incorporating powdery coal with a heavy oil of petroleum series having a high carbon content of at least 0.9 in terms of the atomic ratio C/H in an amount of at least 50 parts by weight per 100 parts of the powdery coal, subjecting the mixture to a heat treatment conducted at 320/sup 0/ to 400/sup 0/C for 0.5 to 10 hours thereby liquefying the coal.
Assignee:
Agency of Industrial Science and Tech.
Patent Number(s):
US 4040941
OSTI ID:
5418544
Country of Publication:
United States
Language:
English

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