Pipeline liquefaction of coal and other carbonaceous material

Details Pipeline liquefaction of coal and other carbonaceous material Pipeline liquefaction of coal and other carbonaceous material

C - Chemistry, Metallurgy

10

G

196/5.8

C10G 1/00 (2006.01)

Patent

CA 1129360

ABSTRACT OF THE DISCLOSURE A method and apparatus are disclosed for the simultaneous liquefaction and transportation of coal in a pipeline. The initial section of the pipeline is utilized as a reaction vessel for the liquefaction of particulate coal by reaction with hydrogen under elevated temperature and pressure, the particulate coal being introduced in the form of an oil-based slurry. A portion of liquefied or partially liquefied coal is recycled from a point downstream in said pipeline to the feed-in region to form a part or all of the oil carrier of said slurry. The remainder of the coal-containing reaction mixture is fed on through the pipeline while allowing liquefaction to continue to completion with progressive let-down of pressure to normal pipeline operating pressures.

348025

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