介绍了合成气催化合成甲醇Cu基催化剂的制备方法——沉淀法,并指出在制备过程中为避免催化剂失活应注意的问题。介绍了3种Cu基催化剂的活性中心模型,分别为:Cu0,Cu+及Cu0-Cu+模型。详细介绍了催化剂合成甲醇的反应机理:CO机理,CO2机理和CO与CO2混合反应机理。最后对甲醇合成催化剂制备提出了改进意见。 The preparation method of the catalyst for synthesizing methanol-based Cu based on syngas was introduced, as precipitation method. The problems that should be paid attention to in order to avoid catalyst deactivation were pointed out. The active center models of three kinds of Cu-based catalysts are introduced, which are Cu0, Cu + and Cu0-Cu + respectively. The reaction mechanism of the catalyst for methanol synthesis is introduced in detail: the CO mechanism, the CO2 mechanism and the mixed reaction mechanism of CO and CO2. Finally, the preparation of methanol synthesis catalyst proposed improvements.