化学学报 ›› 2004, Vol. 62 ›› Issue (18): 1765-1770. 上一篇    下一篇

研究论文

Ru/AlOOH催化剂的制备、表征及其苯选择加氢反应的研究

王建强, 郭平均, 乔明华, 闫世润, 范康年   

  1. 复旦大学化学系, 上海市分子催化与功能材料重点实验室, 上海, 200433
  • 投稿日期:2004-03-22 修回日期:2004-08-13 发布日期:2014-02-17
  • 通讯作者: 范康年,E-mail:mhqiao@fudan.edu.cn;knfan@fudan.edu.cn E-mail:mhqiao@fudan.edu.cn;knfan@fudan.edu.cn
  • 基金资助:
    国家重点基础研究发展"973"规划(No.G2000048009),国家自然科学基金(No.20203004)和上海市科委(No.03QB14004)资助项目

Preparation, Characterization of Ru/AlOOH Catalyst and Its Benzene Partial Hydrogenation Behavior

WANG Jian-Qiang, GUO Ping-Jun, QIAO Ming-Hua, YAN Shi-Run, FAN Kang-Nian   

  1. Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai 200433
  • Received:2004-03-22 Revised:2004-08-13 Published:2014-02-17

采用共沉淀法制备了Ru/A1OOH催化剂,以XRD,TG/DTA,TEM和氮物理吸附等手段对其基本物化性质进行了表征.在苯液相选择加氢制备环己烯的反应中,该催化剂显示了很高的苯选择加氢活性和选择性,环己烯得率可达35.8%,优于原位焙烧上述催化剂或浸渍法制得的Ru/γ-A12O3催化剂.催化剂结构与催化性能的对比研究进一步揭示催化剂的亲水性和孔结构在苯选择加氢反应中的重要作用.

关键词: 苯, 环己烯, 加氢, Ru, 薄水铝石, 孔结构

A novel 4 wt% Ru/AlOOH catalyst was prepared by the coprecipitation method and characterized by XRD, TG/DTA, TEM and nitrogen physisorption. In liquid phase benzene partial hydrogenation, Ru/AlOOH catalyst exhibited much higher cyclohexene selectivity and moderate activity than Ru/γ-Al2O3 catalyst prepared by calcining the titled catalyst or by the wetness impregnation method. It is suggested that the surface hydroxyl groups and the large pores in boehmite be essential for a high yield of cyclohexene.

Key words: benzene, cyclohexene, hydrogenation, Ru,Ru/AlOOH, ore structure