Catalytic Activity for Methanol Synthesis of Zinc Oxide-Chromium Oxide-Copper Oxide Catalysts and its Structural Dependency

Abstract

Abstract A preparative procedure in which copper oxide is introduced into the catalyst by a different way from the usual ones has presented the catalyst of high catalytic activity for the methanol synthesis. The catalyst owes its high catalytic activity to three structural factors, namely, a high catalyst bed density, a larger extent of specific surface area, and a great amount of oxygen loosely bond in catalyst oxides, among which the first factor plays the most important role. The last is effective in improving the specific catalytic activity based on unit surface area, and is in a close relation to the two states, A and B, of different catalytic activities.