采用等体积浸渍法制备不同镍质量分数的Ni/γ-Al₂O₃催化剂，利用XRD、SEM、BET、H₂-TPR和NH₃-TPD等对其进行一系列表征，评价其催化邻苯二甲酸二异壬酯的加氢性能，30% Ni/γ-Al₂O₃表现出优异的催化活性。同时，考察了Ni/γ-Al₂O₃催化剂的焙烧温度和还原温度对邻苯二甲酸二异壬酯加氢的性能影响，结果表明，在催化剂焙烧温度为500℃、还原温度为450℃的最佳条件下，环己烷-1，2-二甲酸二异壬酯的收率为85.74%。对邻苯二甲酸二异壬酯的加氢工艺进行优化，在温度为160℃、压力为7 MPa、空速为0.25 h^-1和氢油比为1 500∶1的条件下，邻苯二甲酸二异壬酯加氢效果最佳，反应的收率高达93.53%。

Ni/γ-Al₂O₃ catalysts with different Ni contents are prepared through equal volume impregnation method,and characterized by XRD,SEM,BET,H₂-TPR and NH₃-TPD.Their catalytic performance for hydrogenation of diisononyl phthalate is evaluated.It is found that 30%Ni/γ-Al₂O₃ shows an excellent catalytic activity.The effects of calcination temperature and reduction temperature of Ni/γ-Al₂O₃ catalyst on its performance in hydrogenation of diisononyl phthalate are investigated.It is shown that the optimal calcination temperature and reduction temperature are 500℃ and 450℃,respectively.Over the catalyst that is prepared under the optimal conditions,the yield of diisononyl cyclohexane 1,2-dicarboxylate can reach 85.74%.The hydrogenation process for diisononyl phthalate is optimized.The hydrogenation effect of diisononyl phthalate reaches the best with a yield as high as 93.53% when the temperature remains at 160℃,pressure is 7 MPa,space velocity is 0.25 h^-1 and the ratio of hydrogen to oil is 1,500∶1.

钱俊峰(1980-),男,博士,副研究员,研究方向为工业催化及化工分离技术,qianjunfeng@cczu.edu.cn