Fluidized bed sulfur dioxide removal

Details Fluidized bed sulfur dioxide removal Fluidized bed sulfur dioxide removal

B - Operations, Transporting

01

D

23/348

B01D 53/34 (2006.01) B01D 53/50 (2006.01)

Patent

CA 1181927

FLUIDIZED BED SULFUR DIOXIDE REMOVAL ABSTRACT Method of stripping SO2 (sulfur dioxide) from flue gases by passing the SO2 containing gas through to a bed of particles to fludize said particles and to form a fluidized bed, injecting a reaction chemical into the bed and reacting it with SO2 in the fluidized bed thereby to form particles of a combined product, combining the particles with other such particles in the fluidized bed to form bigger pellets. While said method is carried out, at least some of the pellets so formed are removed from the bed. In the preferred arrangement the reaction chemicals are injected into the bed in an aqueous medium and gas entering the bed is at a temperature which evaporates the aqueous medium to form a dry combined product.

396727

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