催化学报

催化学报 ›› 2008, Vol. 29 ›› Issue (10): 1058-1066.

• 综述 • 上一篇    

等离子体处理制备对甲烷重整Ni基催化剂抗积炭性能的改进

张月萍1,祝新利2,潘云翔2,刘昌俊2   

  1. 1 天津大学化学系, 天津 300072; 2 天津大学化工学院, 天津 300072
  • 收稿日期:2008-10-25 出版日期:2008-10-25 发布日期:2008-10-25

Improvement of Coke Resistance Performance of Ni-Based Catalysts in Methane Reforming via Glow Discharge Plasma Treatment

ZHANG Yueping1, ZHU Xinli2, PAN Yunxiang2, LIU Changjun2*   

  1. 1 Department of Chemistry, Tianjin University, Tianjin 300072, China; 2 School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
  • Received:2008-10-25 Online:2008-10-25 Published:2008-10-25

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摘要： 对于甲烷重整反应, Ni基催化剂具有与贵金属催化剂相当的活性,但其易于积炭失活. 本文总结了辉光放电等离子体处理制备CO2甲烷重整Ni催化剂以提高催化剂抗积炭性能的研究进展. 比较表明,辉光放电等离子体处理制备的Ni催化剂, Ni颗粒较小,分散性更好,密集平面增加,且Ni活性组分与载体相互作用加强. 这些变化导致Ni催化剂抗积炭性能改善.

关键词: 甲烷, 二氧化碳, 重整, 镍催化剂, 积炭

Abstract: The glow discharge plasma treatment of Ni catalysts followed by calcination ther mally leads to a significant improvement in the coke resistance. Such plasma-tr eated catalyst contains high concentration of close packed plane with improved N i dispersion and enhanced Ni-alumina interaction, which lead to high catalytic activity and excellent resistance to formation of filamentous carbon and encapsu lating carbon.

Key words: methane, carbon dioxide, reforming, nickel catalyst, coke