采用共沉淀法制备了Ru/ZrO2·xH2O催化剂,研究了几种修饰剂对Ru/ZrO2·xH2O催化剂苯选择加氢反应性能的影响.结果表明在催化剂前驱体还原过程中,加入适量的硫酸锌可使环己烯得率达到43.4%;在苯 水反应液中加入适量的甲醇,能够使环己烯得率与未加入时相比增加3%;而一些助催化剂对Ru/ZrO2·xH2O催化剂的选择性影响各不相同. The Ru / ZrO2 · xH2O catalysts were prepared by coprecipitation method and the effects of several modifiers on the selective hydrogenation of benzene over Ru / ZrO2 · xH2O catalysts were investigated. The results showed that during the reduction of catalyst precursors, The yield of cyclohexene can reach 43.4%; adding appropriate amount of methanol into the benzene water reaction solution can increase the yield of cyclohexene by 3% compared with that without cyclohexene addition; while some cocatalysts can effectively reduce the yield of cyclohexene over Ru / ZrO2 · xH2O catalyst The selective impact varies.