Kinetic study on potassium poisoning of V2O5/TiO2 catalysts for selective catalytic reduction of NO in flue gas

被引：0
|
作者：
Jiang, Ye [1 ]
Zhang, Yongxin [2 ]
Wu, Weihong [2 ]
Gao, Xiang [2 ]
机构：
[1] College of Pipeline and Civil Engineering, China University of Petroleum, Qingdao,Shandong Province,266580, China
[2] State Key Laboratory of Clean Energy Utilization (Zhejiang University), Hangzhou,Zhejiang Province,310027, China
来源：
Zhongguo Dianji Gongcheng Xuebao/Proceedings of the Chinese Society of Electrical Engineering | 2014年 / 34卷 / 23期
关键词：
Eley-Rideal mechanism - Kinetic equations - Kinetic modeling - Operating results - Potassium poisoning - Selective catalytic reduction of NO - Simulated results - V2O5/TiO2;
D O I：
10.13334/j.0258-8013.pcsee.2014.23.009
中图分类号：
学科分类号：
摘要：
Based on a model of progressive shell poisoning for a single catalyst particle and Eley-Rideal mechanism of selective catalytic reduction (SCR) reaction, the K-poisoning kinetics of granular V2O5/TiO2 catalysts was studied and their K-poisoning kinetic equation was established. Combining the retention activity of the catalysts from the model simulation with that from the experiments, the relation between K loadings over the catalysts and reaction time was established. The combined effect of K concentration in flue gas and K-poisoning reaction rate constant of the catalysts on the retention activity of the catalysts was simulated based on the established model. The simulated results are in good agreement with the reported operating results of catalysts. This indicates that the established kinetic model on K-poisoning for V2O5/TiO2 catalysts is rational. © 2014 Chinese Society for Electrical Engineering.
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页码：3899 / 3906
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