HYDROCARBON CATALYTICALLY DECOMPOSING CATALYST AND PRODUCTION OF HYDROGEN AND CARBON USING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a catalyst prevented from discharging carbon dioxide to the utmost and capable of producing hydrogen and a carbon material extremely reduced in the content of the catalyst and a method excellent in ion absorbing. releasing characteristic and for producing hydrogen and a carbon material using the catalyst in a catalytic decomposition reaction of hydrocarbon. SOLUTION: The hydrocarbon catalytically decomposing catalyst is constituted of nickel and at least one kind of rare earth oxide and the grade of nickel is >=75 wt.% and <100 wt.% expressed in terms of pure metal. The producing method of hydrogen and carbon is by allowing a gas constituting essentially of hydrocarbon kept at >=450 deg.C and <=600 deg.C to contact with a catalyst layer formed by using the catalyst.