| 摘要 |
PROBLEM TO BE SOLVED: To obtain methanol from carbon monoxide, carbon dioxide and hydrogen under mild conditions in high space velocity and selectivity by using a catalyst comprising palladium prepared from an organic fatty acid palladium salt and a zinc compound. SOLUTION: Carbon monoxide is reacted with carbon dioxide and hydrogen in the presence of a catalyst (preferably having 0.5-10wt.% palladium content) comprising palladium prepared from an organic fatty acid palladium salt (preferably palladium acetate) and a zinc compound (e.g. zinc nitrate). The catalyst is preferably prepared by an impregnation method, e.g. a method dissolving the organic fatty acid palladium salt into a dispersing medium and supporting the compound on the zinc compound. The catalyst is as necessary, preferably subjected to treatments such as baking, reduction, etc. Furthermore, the reaction is preferably carried out at 250-350 deg.C under 40-100atm in 10<3> to 5×10<4> hr<-1> gas space velocity at (1/10) to (10/1) molar ratio of hydrogen/carbon monoxide and carbon dioxide. |
