Bimetal composite SCO denitration catalyst as well as preparation method and application thereof

Abstract

The invention discloses a bimetallic composite SCO denitration catalyst and a preparation method and application thereof, and the preparation method comprises the following steps: 1) mixing a manganese-containing metal salt, an iron-containing metal salt and a solvent to obtain a first mixture; adding ammonia water into the first mixture until the pH value is 8-10 to obtain a second mixture; wherein the molar ratio of the manganese element in the manganese-containing metal salt to the iron element in the iron-containing metal salt is (0.5-1): (0.2-1); 2) adding a carrier into the second mixture to obtain a third mixture; carrying out wet ball milling on the obtained third mixture to obtain a catalyst precursor; and 3) drying and calcining the catalyst precursor to obtain the bimetallic composite SCO denitration catalyst. According to the preparation method disclosed by the invention, the bimetallic composite SCO denitration catalyst with relatively good low-temperature catalytic oxidation activity and sulfur-resistant activity can be obtained, and the technological process of the preparation method is relatively short.