Co2 desorption catalyst

Abstract

This invention provides a CO 2 desorption catalyst that has an excellent CO 2 desorption activity and that can be used to replace metal filler. This invention provides a CO 2 desorption catalyst comprising an inorganic powder or inorganic powder compact, the inorganic powder or inorganic powder compact having a BET specific surface area of 7 m 2 /g or m

1 .- 10 . (canceled) 
     
     
         11 . A CO 2  desorption catalyst comprising an inorganic powder or inorganic powder compact,
 the inorganic powder or inorganic powder compact having a BET specific surface area of 7 m 2 /g or more.   
     
     
         12 . The CO 2  desorption catalyst according to  claim 11 , wherein the inorganic powder or inorganic powder compact is at least one member selected from the group consisting of BN, metal oxides, metals, and clay minerals. 
     
     
         13 . The CO 2  desorption catalyst according to  claim 11 , wherein the inorganic powder or inorganic powder compact is at least one member selected from the group consisting of BN, Ga 2 O 3 , Al 2 O 3 , SiO 2 , CuO, ZnO, Pd, Fe, Co, Ag, Ni, Pt, Cr, and zeolites. 
     
     
         14 . The CO 2  desorption catalyst according to  claim 11 , wherein the inorganic powder or inorganic powder compact is at least one member selected from the group consisting of BN, Ga 2 O 3 , Al 2 O 3 , Pd, Fe, and zeolites. 
     
     
         15 . The CO 2  desorption catalyst according to  claims 11 , wherein the inorganic powder or inorganic powder compact is at least one member selected from the group consisting of BN and Al 2 O 3 . 
     
     
         16 . The CO 2  desorption catalyst according to  claim 15 , wherein at least one metal selected from the group consisting of Pd, Fe, Co, Ag, Ni, and Pt is supported on the catalyst. 
     
     
         17 . A CO 2  desorption device including:
 a CO 2  absorption tower for absorbing and removing CO 2  from exhaust gas by using an absorbing solution; and   a regeneration tower for regenerating the absorbing solution containing absorbed CO 2 ,   wherein the regeneration tower contains the CO 2  desorption catalyst of  claim 11 .   
     
     
         18 . A method for desorbing CO 2 ,
 the method comprising the step of regenerating an absorbing solution containing absorbed CO 2 ,   wherein the regeneration step brings the absorbing solution containing absorbed CO 2  into contact with the CO 2  desorption catalyst of  claim 11 .   
     
     
         19 . Use of an inorganic powder or inorganic powder compact having a BET specific surface area of 7 m 2 /g or more, as a catalyst for desorbing CO 2 . 
     
     
         20 . A method for using an inorganic powder or inorganic powder compact having a BET specific surface area of 7 m 2 /g or more, as a catalyst for desorbing CO 2 .