化工进展

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Cu负载型催化剂用于乙醇氨化合成乙腈

曹金朋1,胡云峰1,许 鹏2,崔宝玉3,董 群1   

  1. 1东北石油大学化学化工学院,黑龙江 大庆163318;2大庆炼化公司,黑龙江 大庆163411;3黑龙江省科学院大庆分院,黑龙江 大庆163316
  • 出版日期:2011-05-05 发布日期:2011-05-05

Research on catalysts loaded with Cu for amination of ethanol to acetonitrile

CAO Jinpeng1,HU Yunfeng 1,XU Peng2,CUI Baoyu 3,DONG Qun 1   

  1. 1School of Chemistry and Chemical Engineering,Northeast Petroleum University,Daqing 163318,Heilongjiang,China;2PetroChina Daqing Refining & Chemical Company,Daqing 163411,Heilongjiang,China;3Daqing Branch of Heilongjiang Academy of Sciences,Daqing 163316,Heilongjiang,China
  • Online:2011-05-05 Published:2011-05-05

摘要:

研究了不同载体SAPO-11Montmorillonite-K10γ-Al2O3ZnOMgO负载Cu的催化剂对乙醇氨化合成乙腈反应的影响。结果表明,经还原的Cu起脱氢作用,载体不仅起分散作用而且具有协同催化的作用,其酸碱性对催化结果有显著影响,其中Cu/γ-Al2O3负载型催化剂具有比较理想的催化效果。在此研究基础上,考察了反应条件对Cu/γ-Al2O3催化剂催化性能的影响,筛选出乙醇氨化合成乙腈的适宜反应条件:反应温度290、反应压力0.1 MPa、乙醇重时空速1.0 h1、氨醇摩尔比7.0,在该条件下乙醇转化率99.7%,乙腈选择性达到92.6%

Abstract:

The catalytic performance of SAPO-11montmorillonite-K10γ-Al2O3ZnO and MgO loaded with Cu were studied for amination of ethanol to acetonitrile. The results showed that reduced copper metal had the function of dehydrogenationand carriers not only played a role in the dispersion of copper metal but also had a synergistic effect. The acid-base property of carriers was closely related to catalytic results. Among these catalyststhe ideal catalytic results were obtained over the Cu/γ-Al2O3 catalyst. The influence of reaction conditions was investigatedand the favorable conditions of amination of ethanol to acetonitrile over Cu/γ-Al2O3 were as followsreaction temperature of 290 reaction pressure of 0.1 MPaethanol WHSV of 1.0 h1 and ammonia/ethanol molar ratio of 7.0. The conversion of ethanol and the selectivity to acetonitrile were 99.7% and 92.6% respectively under the reaction conditions.

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