中文摘要：

考察了过渡金属钼作为助催化剂添加到完全液相法制备的CuZnAI浆态催化剂中，对催化剂结构和CO加氢液相反应的产品分布的影响。Mo改性CuZnAl催化剂在250℃，5．0MPa，空速为360mlM（g·h）和V（H2）／V（CO）=1条件下进行活性评价，在500mL浆态床中c0加氢反应120h；并运用XRD，H2-TPR，NH3-TPD和BET对催化剂进行表征。结果表明：完全液相法制备的Mo—CuZnAl催化剂对液相CO加氢反应有良好稳定性；Mo助剂能促进铜氧化物在较低温度还原，增强催化剂表面酸性，在温和条件下提高烃，特别是甲烷的选择性。

英文摘要：

The influence of transition metal molybdenum oxide used as promoter on the structure and product distribution of CuZnA1 catalyst prepared by complete liquid-phase method in CO hydrogenation liquid reaction was investigated. MoO3-modified CuZnA1 catalysts were evaluated under the conditions of 250 ℃, 5.0 MPa, GHSV = 360 mL/（ g· h） and V（ H2 ） ： V（CO） = 1. The CO hydrogenation reaction was conducted for 120 h in a slurry reactor of 500 mL. The MoO3-CuZnA1 catalysts were characterized by powder X-ray diffraction analysis, H2 temperature programmed reduction, NH3 temperature program desorption and Brunauer Emmett Teller surface area characterization method. The results show that the MoO3-modified CuZnA1 catalysts prepared by complete liquid phase method have a good stability for CO hydrogenation at liquid-phase reaction. Molybdenum oxide can promote the reduction of copper oxide at lower temperature and increase the strength and amount of surface acid on the catalysts. Thus, the hydrocarbon selectivity, especially methane selectivity is raised under the mild reaction condition.