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The SO2 Resistance Improvement of Mn‐Fe/ZSM‐5 for NH3‐SCR at Low Temperature by Optimizing Synthetic Method
ChemistrySelect ( IF 1.9 ) Pub Date : 2018-12-07 , DOI: 10.1002/slct.201801518 Chunlei Zou 1 , Xu Wu 1 , Hao Meng 1 , Yali Du 2 , Zhe Li 1
ChemistrySelect ( IF 1.9 ) Pub Date : 2018-12-07 , DOI: 10.1002/slct.201801518 Chunlei Zou 1 , Xu Wu 1 , Hao Meng 1 , Yali Du 2 , Zhe Li 1
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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 SO2 resistance than the ones by CP method for NH3‐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 SO2 and H2O.
中文翻译：
通过优化合成方法提高NH3-SCR的Mn-Fe / ZSM-5低温下对SO2的耐受性
Mn-Fe / ZSM-5是通过共沉淀（CP）和沉淀化学气相沉积（P-CVD）方法制备的。催化性能研究表明，在低温下，P-CVD法制得的Mn-Fe / ZSM-5比CP法制得的Mn 3 -SCR具有更高的催化活性和SO 2耐性。表征结果表明，沉积在Mn-Fe / ZSM-5（P-CVD）表面的硫酸铵量少于Mn-Fe / ZSM-5（CP）催化剂。进一步的研究表明，硫酸铵的沉积和分解在Mn‐Fe / ZSM‐5（P‐CVD）催化剂上实现了动态平衡，这对于存在SO 2和H 2 O时的出色催化性能至关重要。
更新日期：2018-12-07
中文翻译：
通过优化合成方法提高NH3-SCR的Mn-Fe / ZSM-5低温下对SO2的耐受性
Mn-Fe / ZSM-5是通过共沉淀（CP）和沉淀化学气相沉积（P-CVD）方法制备的。催化性能研究表明，在低温下，P-CVD法制得的Mn-Fe / ZSM-5比CP法制得的Mn 3 -SCR具有更高的催化活性和SO 2耐性。表征结果表明，沉积在Mn-Fe / ZSM-5（P-CVD）表面的硫酸铵量少于Mn-Fe / ZSM-5（CP）催化剂。进一步的研究表明，硫酸铵的沉积和分解在Mn‐Fe / ZSM‐5（P‐CVD）催化剂上实现了动态平衡，这对于存在SO 2和H 2 O时的出色催化性能至关重要。
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