Regeneration and sulfur poisoning behavior of In/H-BEA catalyst for NO_x reduction by CH₄

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• 作者：Hua Pan ; Yanfei Jian ; Yanke Yu ; ^{yankeyu@xjtu.edu.cn} ; Chi He ; ^{chi_he@xjtu.edu.cn} ; Zhenxing Shen ; Hongxia Liu
• 关键词：Sulfur poisoning ; Regeneration ; In/H-BEA ; NOx reduction by CH4 ; Hydrogen reduction
• 刊名：Applied Surface Science
• 出版年：2017
• 出版时间：15 April 2017
• 年：2017
• 卷：401
• 期：Complete
• 页码：120-126
• 全文大小：2426 K
• 卷排序：401

文摘

Sulfur poisoning mechanism of In/H-BEA was investigated for CH4-SCR by in situ DRIFT. H2 reduction could reduce In2(SO4)3 to InO+ via In2(SO4)3 → In2O3 → In(OH)2+ → InO+. The optimal regeneration parameters of H2 reduction was 400 °C and 60 min.