氮氧化物储存还原反应中还原时间的控制方法

上海交通大学学报（自然版） ›› 2017, Vol. 51 ›› Issue (1): 6-.

氮氧化物储存还原反应中还原时间的控制方法

上海交通大学动力机械与工程教育部重点实验室，上海 200240

出版日期:2017-01-31 发布日期:2017-01-31

Regeneration Period Control in NOx Storage/Reduction Reaction

Key Laboratory of Power Machinery and Engineering of the Ministry of Education, Shanghai Jiao Tong University, Shanghai 200240, China

Online:2017-01-31 Published:2017-01-31

摘要/Abstract

摘要：

摘要：使用H2作为还原剂，采用NOx存储还原循环的试验方法，在石英反应器上研究了还原时间、反应温度和还原剂体积分数对NOx存储还原（NSR）催化剂Pt/Ba/Ce/γAl2O3存储还原特性的影响.结果表明：存在一个最佳还原时间，在此处可取得最高的循环转化率；最佳还原时间与反应温度和还原剂体积分数相关，提高反应温度或者降低还原剂体积分数，最佳还原时间延长.

关键词: 氮氧化物储存还原, 氢气, 最佳还原时间

Abstract:

Abstract： Comprehensive NOx storage/reduction (NSR) experiments were conducted in a quartz flow reactor to investigate the influence of regeneration period, temperature and volume fraction of reductant on NSR performance of Pt/Ba/Ce/γAl2O3 when H2 was used as a reducing agent. It is found that the highest conversion ratio in the optimum regeneration time can be obtained, and it is dependent on the temperature and the volume fraction of the reducing agent. As the temperature increases, the optimum regeneration time increases. As the volume fraction of the reducing agent increases, the optimum regeneration time decreases.

Key words: , NOx storage/reduction (NSR)； hydrogen； optimum regeneration time

中图分类号:

TK 46

邹杉，林达，温亚林，张武高. 氮氧化物储存还原反应中还原时间的控制方法[J]. 上海交通大学学报（自然版）, 2017, 51(1): 6-.

ZOU Shan,LIN Da,WEN Yalin,ZHANG Wugao. Regeneration Period Control in NOx Storage/Reduction Reaction[J]. Journal of Shanghai Jiaotong University, 2017, 51(1): 6-.

参考文献

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