张文博, 陈佳玲, 郭立, 郑伟, 王光华, 郑申棵, 吴晓琴. 金属负载型分子筛催化剂的NH3-SCR机理研究进展[J]. 燃料化学学报(中英文), 2021, 49(9): 1294-1315. DOI: 10.1016/S1872-5813(21)60080-4
引用本文: 张文博, 陈佳玲, 郭立, 郑伟, 王光华, 郑申棵, 吴晓琴. 金属负载型分子筛催化剂的NH3-SCR机理研究进展[J]. 燃料化学学报(中英文), 2021, 49(9): 1294-1315. DOI: 10.1016/S1872-5813(21)60080-4
ZHANG Wen-bo, CHEN Jia-ling, GUO Li, ZHENG Wei, WANG Guang-hua, ZHENG Shen-ke, WU Xiao-qin. Research progress on NH3-SCR mechanism of metal-supported zeolite catalysts[J]. Journal of Fuel Chemistry and Technology, 2021, 49(9): 1294-1315. DOI: 10.1016/S1872-5813(21)60080-4
Citation: ZHANG Wen-bo, CHEN Jia-ling, GUO Li, ZHENG Wei, WANG Guang-hua, ZHENG Shen-ke, WU Xiao-qin. Research progress on NH3-SCR mechanism of metal-supported zeolite catalysts[J]. Journal of Fuel Chemistry and Technology, 2021, 49(9): 1294-1315. DOI: 10.1016/S1872-5813(21)60080-4

金属负载型分子筛催化剂的NH3-SCR机理研究进展

Research progress on NH3-SCR mechanism of metal-supported zeolite catalysts

  • 摘要: 在NH3选择性催化还原(NH3-SCR)反应中,由于具有宽温度窗口和良好的水热稳定性,金属负载型分子筛是具有广泛应用潜力的脱硝催化剂。本文综述了Cu基和Fe基分子筛催化剂在NH3-SCR领域的研究进展,总结了催化剂的结构特征和NH3-SCR性能指标,并对相应的金属活性位点和反应机理进行了归纳。此外,系统介绍了密度泛函理论(DFT)计算在NH3-SCR反应机理中的应用及反应动力学的研究方法,并对比了不同催化剂体系下的表观动力学参数,为进一步研究金属负载型分子筛催化剂的NH3-SCR反应机理提供方法与思路。

     

    Abstract: Metal-supported zeolite catalysts have been widely used in the NH3 selective catalytic reduction (NH3-SCR) reactions due to their wide temperature window and good hydrothermal stability. In this review, the research progress in the structural characteristics, catalytic performance and reaction mechanism of Cu- and Fe-based zeolite catalysts in NH3-SCR was summarized. In addition, the application of density functional theory (DFT) calculation in clarifying the reaction mechanism of NH3-SCR was introduced. Finally, the reaction kinetics and the apparent kinetic parameters of different metal-based zeolite catalysts in NH3-SCR were compared and discussed. We hope this review could provide new ideas for the study of NH3-SCR reaction mechanism over metal-supported zeolite catalysts.

     

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