Acid exhaust gas treatment agent, acid exhaust gas treatment method and acid exhaust gas treatment facility

摘要

The present invention is an acidic exhaust gas treatment agent that can increase the removal efficiency of nitrogen monoxide than in the prior art, acidic exhaust gas treatment, in treating acidic exhaust gas generated from combustion facilities such as thermal power plants or incineration facilities using layered double hydroxide A method and an acid exhaust gas treatment facility are provided. The acidic exhaust gas treatment method of the present invention is obtained by using an acidic exhaust gas treatment agent containing a complex product of at least one of a manganese oxide and a permanganic acid compound of an Mg-Al-based layered double hydroxide, wherein the acidic exhaust gas treatment agent a step (1) of making the acidic exhaust gas contact with the acid exhaust gas to adsorb an acidic substance in the acidic exhaust gas; The process (2) of regenerating a processing agent and the process (3) of recovering|recovering the acidic substance desorbed from the said acidic exhaust gas processing agent in the said process (2) are included.