CATALYST FOR DIRECT DECOMPOSITION OF LOWER HYDROCARBON

摘要

PROBLEM TO BE SOLVED: To provide a catalyst for direct decomposition of lower hydrocarbon which is friendly to environment and is economical.

SOLUTION: The catalyst for direct decomposition of lower hydrocarbon is prepared by depositing iron on a surface of a carrier consisting essentially of silica (SiO2) via covering of non-ferrous metal oxide. For example, after the carrier consisting essentially of silica is impregnated with a non-ferrous metal salt solution and then is dried and calcined, the carrier is impregnated with the mixed solution of the non-ferrous metal salt and an iron salt and then is dried and calcined. Preferably the non-ferrous metal oxide is alumina (Al2O3). More preferably foamed glass is used as the carrier consisting essentially of silica. The foamed glass can be obtained as a bulk phase porous body, for example, by adding a foaming agent to pulverized matter of waste glass and performing melting and foaming. The foamed glass having higher ratio of continuous air pores compared to closed cells is desirable.

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