METHANOL-SYNTHESIS CATALYST, ITS PRODUCTION AND METHANOL SYNTHESIZING METHOD

摘要

PROBLEM TO BE SOLVED: To provide a methanol-synthesis catalyst highly resistant to sulfur and having high activity, a method for producing the catalyst and a methanol synthesizing method using the catalyst. ;SOLUTION: This catalyst is a multifunctional catalyst for synthesizing methanol from hydrogen and carbon dioxide and consists essentially of copper and zinc in 0.5:1 to 10:1, preferably 1:1 to 5:1, weight ratio of copper to zonc, and the catalyst contains 1-70wt.%, preferably 10-60wt.%, ≥1 kind of the oxide of element selected from Groups 5, 6 and 13 as promoter. This methanol- synthesis catalyst is obtained by mixing an aq. soln. of copper, zinc and one kind of promoter respectively as the salts and an aq. alkali-contg. soln. at pH6.7 to 7.6, controlling the mixture to pH 7.7 to 8.6 to obtain a deposit, drying, forming and calcining the deposit. The oxygen absorption of the hydrogen- reduced catalyst is controlled to ≥6.0ml (STP)/g.;COPYRIGHT: (C)1998,JPO