USE OF WASTE SOLIDS FROM FLUIDIZED BED COMBUSTION PROCESSES FOR ADDITIONAL FLUE GAS DESULFURIZATION

摘要

THE USE OF WASTE SOLIDS FROM FLUIDIZEDBED COMBUSTION PROCESSES FOR ADDITIONALFLUE GAS DESULFURIZATION.ABSTRACT OF THE DISCLOSUREA process for obtaining additional flue gasdesulfurization using waste solids from a fluidized bedcombustion system in which sulfurous fuels are burned ina bed of acceptor particles. The process comprises thefollowing steps: (1) withdrawing coarse waste particlesfrom the fluidized bed combustion system; (2) subjectingthe coarse waste particles to mechanical grinding means forattriting and disintegrating whereby the waste particlesare reduced to a finely divided chemically reactive state;and, (3) injecting the finely divided waste particles intothe fluidized bed combustion system whereby additional fluegas desulfurization is achieved.