能源化学(英文版)

能源化学(英文) ›› 2005, Vol. 14 ›› Issue (2): 115-118.

• Articles • 上一篇    下一篇

A Novel Cu-Mo/ZSM-5Catalyst for NOx Catalytic Reduction with Ammonia

Zhe Li, Dang Li,Wei Huang, Kechang Xie   

  1. Key Laboratory of Coal Science and Technology of Ministry of Education and Shanxi Province, College of Chemistry and Chemical Engineering, Taiyuan University of Technology, 030024 Taiyuan, China
  • 出版日期:2005-06-30 发布日期:2005-06-30

A Novel Cu-Mo/ZSM-5Catalyst for NOx Catalytic Reduction with Ammonia

Zhe Li, Dang Li,Wei Huang, Kechang Xie   

  • Online:2005-06-30 Published:2005-06-30

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2294

被引次数

5

摘要： The Cu-Mo/ZSM-5 catalysts with different Cu/Mo ratios were prepared by wet impregnation method, and their catalytic performance for selective catalytic reduction of NOx was studied. The results showed that Cu-Mo/ZSM-5 is a very effective catalyst for NOx catalytic reduction with ammonia, especially when Cu/Mo molar ratio is about 1.5. It not only exhibited the extremely high catalytic activity, but also showed good stability for O2. The bulk phase structure of Cu-Mo/ZSM-5 catalysts was determined by XRD technique, and the results indicated that there is a maximum dispersion for Cu species when Cu/Mo molar ratio is 1.5, and an interaction between Cu and Mo along with HZSM-5 may be present in Cu-Mo/ZSM-5, which may possibly result in a special structure favorable for the catalytic reduction of NOx over Cu-Mo/ZSM-5 catalyst.

关键词: nitrogen oxide, selective catalytic reduction, copper, molybdenum, ZSM-5, catalyst

Abstract: The Cu-Mo/ZSM-5 catalysts with different Cu/Mo ratios were prepared by wet impregnation method, and their catalytic performance for selective catalytic reduction of NOx was studied. The results showed that Cu-Mo/ZSM-5 is a very effective catalyst for NOx catalytic reduction with ammonia, especially when Cu/Mo molar ratio is about 1.5. It not only exhibited the extremely high catalytic activity, but also showed good stability for O2. The bulk phase structure of Cu-Mo/ZSM-5 catalysts was determined by XRD technique, and the results indicated that there is a maximum dispersion for Cu species when Cu/Mo molar ratio is 1.5, and an interaction between Cu and Mo along with HZSM-5 may be present in Cu-Mo/ZSM-5, which may possibly result in a special structure favorable for the catalytic reduction of NOx over Cu-Mo/ZSM-5 catalyst.

Key words: nitrogen oxide, selective catalytic reduction, copper, molybdenum, ZSM-5, catalyst