Clean type hydrocarbon steam pre-conversion catalyst and preparation method thereof

The invention relates to a preparation method of a catalyst, and in particular relates to a clean type hydrocarbon steam pre-conversion catalyst and a preparation method thereof. The catalyst takes mixed oxide of aluminum oxide and titanium dioxide as carriers, one or more of lanthanum oxide, cerium protoxide and magnesium oxide in any proportion as an accelerant, and nickel oxide as an active component, wherein a precursor of lanthanum oxide, cerium protoxide, magnesium oxide or nickel oxide is a nonnitrogenous salt or compound, preferably corresponding acetate and oxalate. The prepared clean type hydrocarbon steam pre-conversion catalyst has the characteristics of being high in mechanical strength, good in activity, good in strength stability, structure stability, activity stability and the like, all materialization properties can achieve industrial use requirements, no pollutant gas such as nitrogen oxide is emitted in a preparation process, the pollution problem in the production process of the catalyst can be solved, and the cleanness of the gaseous hydrocarbon steam pre-conversion catalyst in the preparation process can be realized.