催化学报

催化学报 ›› 2006, Vol. 27 ›› Issue (7): 559-561.

• 研究快讯 • 上一篇    下一篇

利用乙醇重整制氢进行硝基苯原位液相加氢合成苯胺

杨建峰,孙军庆,李小年,严新焕   

  1. 浙江工业大学绿色化学合成技术国家重点实验室培育基地, 浙江杭州 310014
  • 收稿日期:2006-07-25 出版日期:2006-07-25 发布日期:2006-07-25

Liquid-Phase Hydrogenation of Nitrobenzene to Aniline Using Solvent Hydrogen from Ethanol Reforming

YANG Jianfeng, SUN Junqing, LI Xiaonian, YAN Xinhuan*   

  1. State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology, Zhejiang University of Technology, Hangzhou 310014, Zhejiang, China
  • Received:2006-07-25 Online:2006-07-25 Published:2006-07-25

PDF

1269

被引次数

53

摘要： 利用乙醇液相催化重整制得的氢直接进行硝基苯原位液相加氢合成苯胺. 考察了不同催化剂、反应温度及反应时间等因素的影响. 在以Pt/Al2O3为催化剂,反应温度220 ℃和反应时间3 h的条件下,硝基苯的转化率可达99.3%, 苯胺的选择性为99.8%, 催化剂表现出较高的加氢活性和选择性.

关键词: 硝基苯, 加氢, 苯胺, 乙醇, 溶剂氢

Abstract: Hydrogen was produced by the liquid-phase reforming of ethanol and used directly for the hydrogenation of nitrobenzene to aniline. The reaction was remarkably affected by the catalysts and experimental parameters, such as reaction time and reaction temperature. The most favorable activity and selectivity were obtained when Pt/Al2O3 was used as the catalyst at 220 ℃ for 3 h. The highest conversion of nitrobenzene reached 99.3% and the selectivity for aniline was as high as 99.8%. The results demonstrated that it is capable for the hydrogention of nitrobenzene to produce aniline using solvent hydrogen from the liquid-phase reforming of ethanol without the use of additional molecular hydrogen.

Key words: nitrobenzene, hydrogenation, aniline, ethanol, solvent hydrogen