Process for gasification of coal to maximize coal...

Details Process for gasification of coal to maximize coal... Process for gasification of coal to maximize coal...

C - Chemistry, Metallurgy

10

J

48/40

C10J 3/16 (2006.01) C10J 3/46 (2006.01) F02C 3/28 (2006.01)

Patent

CA 1151428

ABSTRACT Coarse, graded coal is fed to a pressurized relatively fixed bed, non-slagging gasifier from which crude gas is recovered. Fine coal is slurried in an aqueous mixture comprising the discharge from the relatively fixed bed gasifier, which discharge is composed of hydrocarbons, phenolic water and other liquids as major components and additional makeup water, if required, and the slurry is fed to a slagging, pressurized entrained flow gasifier from which additional crude gas is recovered. The two streams of gas are cleaned and then used to meet a variety of demands, including, but not limited to, gas turbine generation of electric power, manufacture of synthetic natural gas and manufacture of methanol.

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