Process of feeding coal slurry filtration sludge

Details Process of feeding coal slurry filtration sludge Process of feeding coal slurry filtration sludge

C - Chemistry, Metallurgy

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C10L 9/10 (2006.01) C10L 1/32 (2006.01) F23J 15/00 (2006.01) F23C 11/02 (1990.01)

Patent

CA 2026828

ABSTRACT In a process of feeding coal slurry filtration sludge to be combusted in a fluidized bed reactor, coal slurry filtration sludge is mixed with a fine-grained sorbent for 50x and/or a fine-grained sorbent for moisture in such a manner that 20 to 40% by weight of the coal slurry filtration sludge to be fed and contained in the mixture have a particle size of 5 to 30 mm and the resulting freely flowing product is fed to the fluidized bed. The coal slurry filtration sludge is preferably mixed with limestone as a sorbent for 50xand/or with ash from the fluidized bed as a sorbent for moisture, each of which sorbents has a particle size From 50 to 300 µm. The process can be used to special advantage to feed coal slurry filtration sludge to the combustion chamber of a cir- culating fluidized bed.

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