Process and apparatus for upgrading coal using supercritical...

Details Process and apparatus for upgrading coal using supercritical... Process and apparatus for upgrading coal using supercritical...

C - Chemistry, Metallurgy

10

G

C10G 1/04 (2006.01) B01J 19/24 (2006.01)

Patent

CA 2622471

Coal is converted into hydrocarbon compounds using supercritical water. The process involves two stages; a first stage in which carbonaceous material is reacted with supercritical water at above 850K to produce a first supercritical fluid reaction mixture comprising hydrocarbon compounds; and a second stage in which hydrocarbon compounds are extracted from coal mixed with at least a portion of the first supercritical fluid at a temperature within a range of from the supercritical temperature of water to about 695K. Char from the second stage is finely divided and may be either be used outside the process, e.g. in a coal fired power station or a gasifier, or used as at least a portion of the carbonaceous material used in the first stage.

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