Methanol synthesis from CO2 hydrogenation over Cu/g-Al2O3 catalysts modified by ZnO, ZrO2 and MgO

• Published in: Journal of industrial and engineering chemistry (Seoul, Korea) pp. 261 - 267
• Main Authors: Hong Ren, Cheng-Hua Xu, Hao-Yang Zhao, Ya-Xue Wang, Jie Liu, Jian-Ying Liu
• Format: Journal Article
• Language: English
• Published: 한국공업화학회 01.08.2015
• Subjects: 화학공학
• ISSN: 1226-086X; 1876-794X
• DOI: 10.1016/j.jiec.2015.03.001

Cu/g-Al2O3 catalysts for methanol synthesis from CO2 are prepared and modified by metal oxides viaimpregnation in the present work. Results indicate that promoters modification leads to the formation ofsmall Cu0 particles with a high dispersion, improves catalytic performance of Cu-based catalysts inmethanol synthesis. Moreover, the activation temperature is another important factor on affecting theCu0 dispersion and particle size. The investigation on CO2 hydrogenation shows that methanol is mainlyfrom hydrogenation of activated CO2 with active hydrogen on Cu0 particles, which is inhibited by highreaction temperature due to improvement on reverse water-gas shift reaction and methanation KCI Citation Count: 105