Control of pyrite addition in coal liquefaction process

Details Control of pyrite addition in coal liquefaction process Control of pyrite addition in coal liquefaction process

C - Chemistry, Metallurgy

10

G

196/5.8

C10G 1/06 (2006.01) C10G 1/00 (2006.01) C10G 1/08 (2006.01)

Patent

CA 1159786

CONTROL OF PYRITE ADDITION IN COAL LIQUEFACTION PROCESS Abstract of the Disclosure Pyrite addition to a coal liquefaction process 122, 26) is controlled (118) in inverse proportion to the calcium content of the feed coal to maximize the C5 - 900°F (482°C) liquid yield per unit weight of pyrite added (110). The pyrite addition is controlled in this manner so as to minimize the amount of pyrite used and thus reduce pyrite contribution to the slurry pumping load and disposal problems connected with pyrite produced slag.

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