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高等学校化学研究 ›› 2011, Vol. 27 ›› Issue (5): 866-869.

• Articles • 上一篇    下一篇

Propylene Epoxidation by Dioxygen over Catalyst Copper-loaded TiO2

JIN Qiang-wei1, WANG Kai-xue1, WANG Jian-qiang2, LI Xiao-bei1 and CHEN Jie-sheng1*   

  1. 1. School of Chemistry and Chemical Engineering, Shanghai Jiaotong University, Shanghai 200240, P. R. China;
    2. Shanghai Synchrotron Radiation Facility, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201204, P. R. China
  • 收稿日期:2010-12-27 修回日期:2011-04-12 出版日期:2011-09-25 发布日期:2011-09-06
  • 通讯作者: CHEN Jie-sheng E-mail:chemcj@sjtu.edu.cn
  • 基金资助:

    Supported by the National Basic Research Program of China(No.2007CB613303) and the National Natural Science Foundation of China(No.20731003).

Propylene Epoxidation by Dioxygen over Catalyst Copper-loaded TiO2

JIN Qiang-wei1, WANG Kai-xue1, WANG Jian-qiang2, LI Xiao-bei1 and CHEN Jie-sheng1*   

  1. 1. School of Chemistry and Chemical Engineering, Shanghai Jiaotong University, Shanghai 200240, P. R. China;
    2. Shanghai Synchrotron Radiation Facility, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201204, P. R. China
  • Received:2010-12-27 Revised:2011-04-12 Online:2011-09-25 Published:2011-09-06
  • Contact: CHEN Jie-sheng E-mail:chemcj@sjtu.edu.cn
  • Supported by:

    Supported by the National Basic Research Program of China(No.2007CB613303) and the National Natural Science Foundation of China(No.20731003).

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摘要： A copper-TiO2 based catalyst(Cu-OH-Cl-TiO2) was prepared through a slurry impregnation approach and the catalyst was found to be active and selective for the epoxidation of propylene by dioxygen. With a feed gas of  10% C3H6, 10% O2 and 80% N2 at a gas hourly space velocity(GHSV) of 4000 h–1, a propylene conversion of 4.8% and a propylene oxide(PO) selectivity of 38.9% were achieved over the obtained Cu-OH-Cl-TiO2 catalyst at a reaction temperature of 500 K. It revealed that Cu2+ provided by crystalline Cu2(OH)3Cl plays a key role in catalytic conversion of propylene to PO.

关键词: Propylene epoxidation, Selectivity, Cu-OH-Cl-TiO2, Dioxygen

Abstract: A copper-TiO2 based catalyst(Cu-OH-Cl-TiO2) was prepared through a slurry impregnation approach and the catalyst was found to be active and selective for the epoxidation of propylene by dioxygen. With a feed gas of  10% C3H6, 10% O2 and 80% N2 at a gas hourly space velocity(GHSV) of 4000 h–1, a propylene conversion of 4.8% and a propylene oxide(PO) selectivity of 38.9% were achieved over the obtained Cu-OH-Cl-TiO2 catalyst at a reaction temperature of 500 K. It revealed that Cu2+ provided by crystalline Cu2(OH)3Cl plays a key role in catalytic conversion of propylene to PO.

Key words: Propylene epoxidation, Selectivity, Cu-OH-Cl-TiO2, Dioxygen