Coal liquefaction

Details Coal liquefaction Coal liquefaction

C - Chemistry, Metallurgy

10

G

196/5.2

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

Patent

CA 1176196

COAL LIQUEFACTION Abstract of the Disclosure In a two-stage liquefaction wherein coal, hydrogen and liquefaction solvent are contacted in a first thermal liquefaction zone, followed by recovery of an essentially ash free liquid and a pumpable stream of insoluble material, which includes 850°F+ liquid, with the essentially ash free liquid then being further upgraded in a second lique- faction zone, the liquefaction solvent for the first stage includes the pumpable stream of insoluble material from the first liquefaction stage, and 850°F+ liquid from the second liquefaction stage.

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