| 摘要 |
PURPOSE: To purify a combustion waste gas containing dust, sulfur oxides and nitrogen oxides in dry state. CONSTITUTION: Ammonia B is added to the combustion waste gas A, and the mixed gas is introduced to a manganese ore moving bed 2 filled with the manganese ore having a grain size range of >=3mm and <=20mm to be subjected to coarse dust-removal and a contact desulfurization.denitrification with ammonia. Then, the combustion waste gas A is introduced to a sintered ore moving bed 3 filled with the sintered ore having a grain size range of >=1mm and <=5mm to undergo dust removing. Therefore, the dust removing, desulfurization and denitrification of the combustion waste gas high in performance, high in efficiency, low in cost and being is compact is realized. |
