An apparatus for flue gas desulfurization by the wet method same circulating tank for use in said apparatus,

摘要

An apparatus for wet process flue gas desulfurization having overcome drawbacks of the prior art, without providing no particular means for the absorption tower and capable of omitting means for neutralization and oxidation is provided, which apparatus is directed to the one wherein SOx in an exhaust gas is removed with a calcium absorbent and gypsum is recovered as by-product, and characterized by incorporating a dust-removing part into a conventional absorption tower and also devising the part so as to impart thereto a function of neutralizing unreacted limestone and also a function of oxidation, that is characterized by providing the respective means for gas cooling, dust-removal, absorption and removal of SOx and removal of entrained mist, within a same apparatus.