Method for the treatment of exhaust gases
AssigneeMitsubishi Jukogyo Kabushiki Kaisha
InventorsNaoharu Shinoda, Atsushi Tatani, Kenji Inoue, Susumu Okino
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Abstract
A method for the wet treatment of combustion exhaust gases comprising SO.sub.2 and HCl, the method comprising detecting an amount of HCl in the exhaust gas and feeding, to an exhaust gas treating tower, a sodium salt in an amount corresponding to at least the detected amount of HCl so that all the HCl is able to be converted into NaCl in the exhaust gas treating tower, along with CaCO.sub.3 or Ca(OH).sub.2 used as an SO.sub.2 absorbent.
Claims2
A method for the wet treatment of a combustion exhaust gas comprising SO.sub.2 and HCl, the method comprising detecting an amount of HCl in the exhaust gas, and feeding, to a circulating slurry in an exhaust gas treating tower, (a) a sodium salt in an amount corresponding to at least the detected amount of HCl so that all the HCl is able to be converted into NaCl in the exhaust gas treating tower and (b) CaCO.sub.3 or Ca(OH).sub.2 serving as an absorbent for SO.sub.2.
Dependencies are inferred from the claim text.