催化学报

催化学报 ›› 2011, Vol. 32 ›› Issue (1): 51-59.DOI: 10.1016/S1872-2067(10)60159-3

• 研究论文 • 上一篇    下一篇

Deactivation Modes of Solid Catalysts with Different Active Sites

K. KUMBILIEVA1,*, L. PETROV2   

  1. 1Institute of Catalysis, Bulgarian Academy of Sciences, Sofia, Bulgaria; 2SABIC Chair in Catalysis, King Abdulaziz University, Jeddah, Kingdom of Saudi Arabia
  • 收稿日期:2010-06-13 修回日期:2010-08-25 出版日期:2011-01-13 发布日期:2014-05-22

Deactivation Modes of Solid Catalysts with Different Active Sites

K. KUMBILIEVA1,*, L. PETROV2   

  1. 1Institute of Catalysis, Bulgarian Academy of Sciences, Sofia, Bulgaria; 2SABIC Chair in Catalysis, King Abdulaziz University, Jeddah, Kingdom of Saudi Arabia
  • Received:2010-06-13 Revised:2010-08-25 Online:2011-01-13 Published:2014-05-22

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摘要： An approach is suggested to distinguish different types of active sites responsible for different reactions on bifunctional catalysts. The model assumes a non-uniform vulnerability of active sites that depends on their location. Problems on the relationship between the dispersion of the active phase and selectivity are discussed. The effect of coke formation on the activity change of different sites is analyzed.

关键词: solid catalyst, deactivation mode, bifunctional catalyst, active site

Abstract: An approach is suggested to distinguish different types of active sites responsible for different reactions on bifunctional catalysts. The model assumes a non-uniform vulnerability of active sites that depends on their location. Problems on the relationship between the dispersion of the active phase and selectivity are discussed. The effect of coke formation on the activity change of different sites is analyzed.

Key words: solid catalyst, deactivation mode, bifunctional catalyst, active site