修饰剂对Ru/ZrO_2·xH_2O催化剂苯选择加氢反应的影响  

The Effect of Modifiers on Benzene Selective Hydrogenation over Ru/ZrO_2·xH_2O

作　　者：王建强[1] 郭平均[1] 乔明华[1] 范康年[1] 

机构地区：[1]复旦大学化学系上海市分子催化和创新材料重点实验室,上海200433

出　　处：《复旦学报（自然科学版）》2004年第4期610-614,共5页Journal of Fudan University：Natural Science

基　　金："973"国家重点基础研究发展规划资助项目(G2000048009);国家自然学基金资助项目(20073008);上海市自然科学基金资助项目(02ZA14006)

摘　　要：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.Based on the Ru/ZrO_2·xH_2O catalyst prepared by the coprecipitation method, the influences of some inorganic and organic modifiers on benzene selective hydrogenation have been studied. It is found that the presence of zinc sulfate during catalyst reduction drastically improves the cyclohexene yield to 43.4%. The addition of a suitable amount of methanol in the benzene-water system can moderately increase cyclohexene yield. While the promoting effect of the inorganic promoters such as zinc, chromium and cobalt is minimal.

关 键 词：修饰剂 苯 环已烯 钌 氧化锆 添加剂 加氢反应 

分 类 号：O643.36[理学—物理化学]