Use of waste solids from fluidized bed combustion processes...

Details Use of waste solids from fluidized bed combustion processes... Use of waste solids from fluidized bed combustion processes...

B - Operations, Transporting

01

D

23/348

B01D 53/34 (2006.01) B01D 53/50 (2006.01) F23C 10/00 (2006.01) F23J 15/00 (2006.01)

Patent

CA 1263518

THE USE OF WASTE SOLIDS FROM FLUIDIZED BED COMBUSTION PROCESSES FOR ADDITIONAL FLUE GAS DESULFURIZATION. ABSTRACT OF THE DISCLOSURE A process for obtaining additional flue gas desulfurization using waste solids from a fluidized bed combustion system in which sulfurous fuels are burned in a bed of acceptor particles. The process comprises the following steps: (1) withdrawing coarse waste particles from the fluidized bed combustion system; (2) subjecting the coarse waste particles to mechanical grinding means for attriting and disintegrating whereby the waste particles are reduced to a finely divided chemically reactive state; and, (3) injecting the finely divided waste particles into the fluidized bed combustion system whereby additional flue gas desulfurization is achieved.

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