| 摘要 |
Provided are a method for purifying an exhaust gas capable of performing a stable exhaust gas treatment consistently, and a device therefor. The exhaust gas purification method contains: subjecting a combustion exhaust gas containing NOx and SOx to a treatment for adsorbing and removing SOx with an SOx adsorbent; then adding a denitration reducing agent to the treated gas; and performing a denitration treatment with a denitration catalyst, in which plural SOx adsorption columns (7) and (8) for adsorbing and removing SOx with an SOx adsorbent are provided, and adsorption of SOx is performed in a part of the units, during which regeneration of the SOx adsorbent is performed in the other of the units, thereby performing adsorption of SOx and regeneration of the SOx adsorbent alternately. |
