Unraveling the nature of sulfur poisoning on Cu/SSZ-13 as a selective reduction catalyst

Chen Wang,Zexiang Chen,Jun Wang,Jianqiang Wang,Meiqing Shen

Journal of the Taiwan Institute of Chemical Engineers（2021）

引用 17|浏览3

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摘要

•Sulfur species inactivate Cu ions and lead to inferior SCR activity below 400 °C;•Copper bisulfate and ammonium bisulfate can be inter-transformed;•NO+O2 convert ammonium bisulfate to copper bisulfate, which is difficult in recovery;•NH3 adsorption helps to decompose sulfate species and recover SCR activity easily.

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关键词

Cu/SSZ-13 catalyst,Selective catalytic reduction,Sulfur poisoning,Ammonium bisulfate,Copper bisulfate

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