The SO 2  Resistance Improvement of Mn‐Fe/ZSM‐5 for NH 3 ‐SCR at Low Temperature by Optimizing Synthetic Method | Zendy

Zou Chunlei | Zendy; Wu Xu | Zendy; Meng Hao | Zendy; Du Yali | Zendy; Li Zhe | Zendy

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The SO 2 Resistance Improvement of Mn‐Fe/ZSM‐5 for NH 3 ‐SCR at Low Temperature by Optimizing Synthetic Method

Author(s) -

Zou Chunlei,

Wu Xu,

Meng Hao,

Du Yali,

Li Zhe

Publication year - 2018

Publication title -

chemistryselect

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.437

H-Index - 34

ISSN - 2365-6549

DOI - 10.1002/slct.201801518

Subject(s) - catalysis , zsm 5 , decomposition , chemical vapor deposition , sulfate , inorganic chemistry , precipitation , chemistry , deposition (geology) , nitrogen , ammonium sulfate , zeolite , ammonia , selective catalytic reduction , nuclear chemistry , materials science , organic chemistry , paleontology , physics , sediment , meteorology , biology

Mn‐Fe/ZSM‐5 was prepared via co‐precipitation (CP) and precipitation–chemical vapor deposition (P‐CVD) methods. Catalytic performance investigation showed that Mn‐Fe/ZSM‐5 by P‐CVD method had higher catalytic activity and SO 2 resistance than the ones by CP method for NH 3 ‐SCR at low temperature. Characterization results proved that the amount of ammonium sulfate deposited on the surface of Mn‐Fe/ZSM‐5(P‐CVD) was less than that of Mn‐Fe/ZSM‐5(CP) catalyst. Further investigations revealed that the deposition and decomposition of ammonium sulfate proceeded in a dynamic balance on Mn‐Fe/ZSM‐5(P‐CVD) catalyst, which was crucial for the excellent catalytic performances in the presence of SO 2 and H 2 O.

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