Abstract: A series of catalysts for methanol synthesis were prepared by vacuum freeze drying. Catalytic properties of catalysts were investigated with XRD，H2-TPR，CO2-TPD，TEM，EDAX，and BET and evaluation of catalytic activity was conducted in a micro fixed-bed reactor. The results showed that the catalysts for methanol synthesis prepared by vacuum freeze drying had high specific surface area，high activity and high selectivity.

Key words: methanol, carbon dioxide, catalyst, vacuum freeze drying, methanol, carbon dioxide, catalyst, vacuum freeze drying

摘要： 采用真空冷冻干燥法制备了一系列CuO-ZnO-ZrO2甲醇合成催化剂，在微型固定床反应器上考察了其对CO2加氢合成甲醇的催化性能及影响，并用XRD、H2-TPR、CO2-TPD、TEM、EDAX、BET等手段进行了表征。研究结果表明，采用真空冷冻干燥法能够制备出高比表面积、高活性、高选择性的甲醇合成催化剂CuO-ZnO-ZrO2。

关键词: 甲醇, 二氧化碳, 催化剂, 真空冷冻干燥法, 甲醇, 二氧化碳, 催化剂, 真空冷冻干燥法