中文摘要：

以氨水为铜、锌盐的络合剂,采用完全液相法制备Cu-Zn-Al催化剂,采用XRD、H_2程序升温还原、N_2吸附-脱附和X射线光电子能谱等手段对催化剂进行表征,并采用浆态床反应器评价催化剂的CO加氢性能,考察Cu、Zn前体性质对催化剂结构及性能的影响。结果表明,以Cu（NH3）_4~（2＋）或（和）Zn（NH3）2＋4前体形式制备Cu-Zn-Al催化剂,Cu晶粒尺寸由45.9nm减小到了34.4nm,同时抑制Cu氧化物的还原;表面Cu含量（摩尔分数）由0.73%提高到了2.18%,Al含量（摩尔分数）由11.62%提高到了20.46%,增加了催化剂表面酸强度和酸量,从而提高了催化剂的CO加氢活性,改变了产物分布。

英文摘要：

Cu-Zn-Al slurry catalysts were prepared by complete liquid-phase technology with ammonia water as a complexing agent,and characterized by means of XRD,H2 temperatureprogrammed reduction,N_2adsorption-desorption and X-ray photoelectron spectroscopy.The catalytic performance of the samples for the CO hydrogenation was evaluated in a slurry reactor.The effects of Cu and Zn precursors on the structure and catalytic performance of the prepared Cu-Zn-Al catalyst were investigated.The results indicated that the Cu and Zn precursors with the forms of Cu（NH_3）_4~（2＋）or Zn（NH_3）_4~（2＋）were beneficial to the smaller crystal size of Cu0,which was decreased from 45.9nm to 34.4nm,and could inhabit the reduction of Cu oxides.The surface Cu mole fraction increased from 0.73% to 2.18% and the surface Al mole fraction increased from11.62%to 20.46%,and also the surface acid strength and acid amount were increased.As a result,the CO hydrogenation activity of the Cu-Zn-Al catalyst was enhanced and the distribution of products was changed.