中文摘要：

采用浸渍法制备Ni／γAl2O3催化剂，考察了催化剂中活性金属含量、焙烧温度、反应温度、反应空速、助剂（钇或锂）对乙酸蒸汽重整制氢反应的影响。研究结果表明，在镍质量含量为12％，焙烧温度为800℃，反应温度为600℃，质量空速为3．0h^-1时，Ni/γAl2O3表现出较好的催化活性；添加助剂钇和锂的催化剂上重整反应氢选择性降低，乙酸转化率升高；添加碱金属锂的催化剂抗积碳性能明显提高，这表明在生物质油蒸汽重整制氢反应中添加碱金属助剂对提高Ni/γAl2O3催化剂的抗积碳性能有很大作用。

英文摘要：

The research on steam reforming of acetic acid over Ni/7-Al2O3 catalysts for hydrogen production had been carried out. The effects of Ni content, calcination temperature, reaction temperature, weight hourly space velocity and promotors （Lithium and Yttrium） were tested. The results showed that at CNi=12%, Tcal=1073 K, Treac=873 K, nWHSV= 3.0 h^-1, the Ni/γ-Al2O3 catalyst exhibits high activity and selectivity. The addition of 2% lithium or yttrium promotors does not affect the selectivity of Ni/γ-Al2O3 for H2 production, just increase the conversion of acetic acid to other products. The addition of lithium improves the anti-carbon-deposition performance of the catalyst significantly.