Title: Process for the production of hydrocarbons from coal

Abstract: Coal is liquefied by treatment with a hydrogen-donor solvent and gaseous hydrogen, a heavy bottoms product boiling primarily in excess of about 1000.degree. F. is recovered, and this bottoms product is then pyrolyzed with fresh coal to produce surprisingly high yields of liquid product. The coke formed during the pyrolysis step may be gasified to generate hydrogen for use in the liquefaction operation and additional gas which can be employed as a fuel or upgraded for other uses.

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Inventors: Lang, Robert J. (Baytown, TX, US)

Application Number: 694410
Filing Date: 1976-06-09
Publication_date: 1978-02-21
Assignee: Exxon Research & Engineering Co. (Linden, NJ)
Primary Class(es): 48/210 48/197R, 201/20, 208/127, 208/400, 208/414, 252/373
Other Classes:
US Patent Ref:

3841991

Oct, 1974

Cohen et al.

208/8.

Other Refs:
Primary Examiner: Gantz, Delbert E.
Assistant Examiner: Hellwege, James W.
Attorney: Reed; James E.