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在低温低压和浆态反应条件下，考察了空速、反应时间、杂质及Ｃｕ－Ｃｒ摩尔比对铜基催化剂催化合成气一步合成甲醇和甲酸甲酯反应的影响。实验结果表明，空速对催化剂活性有较显著的影响；ＣＯ转化率与反应时间无关，但Ｈ２的转化率与反应时间有关。在１５小时之内Ｈ２的转化率随反应时间增加而缓慢增加，此后与反应时间无关。此外，高浓度的杂质使催化剂的活性和寿命下降，而且Ｃｕ／Ｃｒ摩尔比和热处理气氛对催化剂的物相和活性也有显著的影响。
The effects of space velocity, reaction time, impurities and Cu-Cr molar ratio on the reaction of copper-based catalyst for one-step synthesis of methanol and methyl formate from syngas were investigated at low temperature and low pressure. The experimental results show that the space velocity has a significant effect on the catalyst activity. The conversion of CO has nothing to do with the reaction time, but the conversion rate of H2 is related to the reaction time. The conversion rate of H2 increases slowly with the increase of reaction time within 15 hours, and has nothing to do with the reaction time thereafter. In addition, the high concentration of impurities reduces the activity and life of the catalyst, and the Cu / Cr molar ratio and the heat treatment atmosphere also have a significant effect on the catalyst phase and activity.