Denitration catalyst and method for producing the same

Abstract

There is provided a catalyst that exhibits a high denitration efficiency at a relatively low temperature and does not cause oxidation of SO 2 in a selective catalytic reduction reaction that uses ammonia as a reducing agent. A denitration catalyst contains 3.3 wt % or more of vanadium oxide in terms of vanadium pentoxide and has a BET specific surface area of 10 m 2 /g or more.

1 . A denitration catalyst comprising 3.3 wt % or more of vanadium oxide in terms of vanadium pentoxide, wherein the denitration catalyst has a BET specific surface area of 10 m2/g or more. 
     
     
         2 . The denitration catalyst according to  claim 1 , wherein the denitration catalyst is used for denitration at 200° C. or lower. 
     
     
         3 . The denitration catalyst according to  claim 1 , wherein an amount of NH3 desorbed by NH3-TPD (TPD: temperature programed desorption) is 10.0 mmol/g or more. 
     
     
         4 . A method for producing the denitration catalyst according to  claim 1 , the method comprising a step of thermally decomposing a vanadate at a temperature of 300° C. to 400° C. 
     
     
         5 . A method for producing the denitration catalyst according to  claim 1 , the method comprising a step of dissolving a vanadate in a chelate compound, performing drying, and then performing firing.