中文摘要：

采用完全液相法以乙二醇为溶剂和螯合剂制备Cu/Zn/Al催化剂,利用XRD、H2-TPR、NH3-TPD、BET和XPS技术对催化剂进行表征,并以合成气为原料在浆态床反应器中考察了不同乙二醇体积分数的乙二醇溶液对催化剂催化合成气制乙醇性能的影响。结果表明：Cu/Zn/Al催化剂中存在Cu和Cu2O物相;乙二醇的加入可以提高催化剂中Cu2O分散度,增强Cu物种与Zn、Al物种的相互作用,提高Cu物种的还原温度,改变催化剂的织构和表面性质;催化剂制备时加入乙二醇,可以显著增加乙醇的选择性,当乙二醇溶液中乙二醇的体积分数为21.0%时,乙醇的选择性达到10.1%,醇产物中乙醇的质量分数达到18.0%,但是当乙二醇的体积分数继续增大时乙醇选择性开始逐渐降低。

英文摘要：

Cu/Zn/Al catalysts were prepared by complete liquid-phase technology using ethylene glycol（EG） as solvent and chelating agent, and characterized by XRD, H2-TPR, NH3-TPD, BET and XPS. The effects of EG concentration in the EG alcohol solution on the catalytic performances of the prepared catalysts for synthesis of ethanol from syngas were investigated in a slurry-bed reactor. The results showed that Cu and Cu2 O phases were observed in the catalysts. EG used in the process of the catalyst preparation changed the surface property and texture of the catalysts, improved the dispersion of Cu2 O, enhanced the interaction between Cu and Al or Zn species and increased the reduction temperature of Cu species. The addition of EG could markedly increase ethanol selectivity. When EG volume fraction in the alcohol solution for catalyst preparation was 21.0%, ethanol selectivity reached a maximum value of 10.1 % with a mass fraction of ethanol in the alcohol product of 18.0%. When EG concentration increased further, ethanol selectivity decreased.