Catalyst for production of hydrogen and process for producing hydrogen using the catalyst, and catalyst for combustion of ammonia, process for producing the catalyst and process for combusting ammonia using the catalyst

Abstract

Disclosed is a catalyst which can be used in the process for producing hydrogen by decomposing ammonia, can generate heat efficiently in the interior of a reactor without requiring excessive heating the reactor externally, and can decompose ammonia efficiently and steadily by utilizing the heat to produce hydrogen. Also disclosed is a technique for producing hydrogen by decomposing ammonia efficiently utilizing the catalyst. Specifically disclosed is a catalyst for use in the production of hydrogen, which is characterized by comprising an ammonia-combusting catalytic component and an ammonia-decomposing catalytic component. Also specifically disclosed is a catalyst for use in the production of hydrogen, which is characterized by comprising at least one metal element selected from the group consisting of cobalt, iron, nickel and molybdenum.

1 - 33 . (canceled) 
     
     
         34 . A catalyst for production of hydrogen, which is a catalyst used for obtaining hydrogen from a gas containing ammonia and oxygen, comprising at least one metal element selected from the group consisting of cobalt, iron, nickel and molybdenum. 
     
     
         35 . The catalyst for production of hydrogen according to  claim 34 , further comprising an alkali metal, an alkaline earth metal or a rare earth element as D″ component. 
     
     
         36 . The catalyst for production of hydrogen according to  claim 34 , further comprising at least one metal oxide selected from the group consisting of alumina, silica, zirconia, titania, ceria, lanthanum oxide, magnesium oxide, calcium oxide, barium oxide and strontium oxide as E″ component. 
     
     
         37 . A process for producing hydrogen from a gas containing ammonia and oxygen by using the catalyst for production of hydrogen according to  claim 34 . 
     
     
         38 . The process for producing hydrogen according to  claim 37 , wherein 0.05 mol or more and less than 0.75 mol of oxygen is added to 1 mol of ammonia.