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化学学报
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化学学报 ›› 2007, Vol. 65 ›› Issue (14): 1338-1342. 上一篇    下一篇

研究论文

RuB-PVP胶态催化剂的制备及苯选择加氢性能研究

卜娟1, 王建强1, 乔明华*,1, 闫世润1, 李和兴2, 范康年*,1   

  1. (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)
    (2上海师范大学化学系 上海 200234)
  • 投稿日期:2006-03-10 修回日期:2007-03-01 发布日期:2007-07-28
  • 通讯作者: 乔明华

RuB-PVP Colloidal Catalysts: Preparation and Catalytic Performance in Selective Hydrogenation of Benzene to Cyclohexene

BU Juan1; WANG Jian-Qiang1; QIAO Ming-Hua*,1; YAN Shi-Run1; LI He-Xing2; FAN Kang-Nian*,1   

  1. (1 Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai 200433)
    (2 Department of Chemistry, Shanghai Normal University, Shanghai 200234)
  • Received:2006-03-10 Revised:2007-03-01 Published:2007-07-28
  • Contact: QIAO Ming-Hua

PDF

798

被引次数

31 | 11

系统研究了制备时间、Ru/PVP(聚乙烯吡咯烷酮)比及钌浓度对PVP稳定的RuB胶态催化剂粒径及分布的影响; 制备了粒径在1.3～3.9 nm的RuB-PVP催化剂, 研究了不同粒径的催化剂对苯选择加氢反应的影响. 结果表明RuB粒径越小, 催化剂的苯选择加氢性能越好. 在粒径为1.3 nm的RuB-PVP催化剂上, 环己烯得率达到16.8%. 在无机添加剂ZnSO4的存在下, 环己烯得率可进一步提高至23.2%. 在相同实验条件下, 无PVP稳定的RuB催化剂上的苯选择加氢性能则远低于RuB-PVP胶态催化剂.

关键词: RuB, PVP, 苯, 环己烯, 选择加氢

A series of polyvinylpyrrolidone (PVP)-stabilized RuB colloidal catalysts have been successfully prepared with the diameters of RuB in the range of 1.3～3.9 nm with narrow size distribution. In benzene selective hydrogenation, it was found that the RuB-PVP catalyst with smaller particle size exhibited higher activity and selectivity. Moreover, the RuB-PVP catalysts have much better performance than the RuB catalyst without the stabilization of PVP under the same reaction condition.

Key words: RuB, PVP, benzene, cyclohexene, selective hydrogenation