Research Status and Prospects of Low Temperature Selective Catalytic Reduction of NOx by MnOx-based Catalysts
XIE Zhibo1,2, SONG Yanjun1,2, LIANG Jinsheng1,2, XUE Gang1,2, MENG Junping1,2, SUN Jianfeng1,2
1 Key Laboratory of Special Functional Materials for Ecological Environment and Information of Ministry of Education, Hebei University of Technology, Tianjin 300130; 2 Institute of Power Source and Ecomaterials Science, Hebei University of Technology, Tianjin 300130
Abstract: Manganese(Mn) based catalysts have relatively high catalytic activity and low cost, which has been widely used in selective catalytic reduction (SCR) technology for the removal of NOx from flue gas. The recent progress on the Mn-based catalysts for low-temperature SCR de-NOx is systematically reviewed. On this basis, Mn-based catalysts are divided into two categories: single MnOx catalysts and Mn-based multi-metal oxide catalysts. According to single MnOx catalysts, the effects of Mn oxidation state, crystallization state, specific surface area and morphology on catalytic activity are systematically analyzed. For multi-metal oxide catalysts, the various facts dominated by the components of catalysts are summarized from four aspects, improving de-NOx efficiency, extending operation temperature range, enhancing N2 selectivity, and improving resistance to SO2 and H2O. Finally, the application prospect of manganese based catalysts are predicted according to the above summary.
解智博, 宋艳军, 梁金生, 薛刚, 孟军平, 孙剑锋. 锰基催化剂低温选择催化还原处理NOx的研究现状与展望*[J]. 《材料导报》期刊社, 2017, 31(11): 38-43.
XIE Zhibo, SONG Yanjun, LIANG Jinsheng, XUE Gang, MENG Junping, SUN Jianfeng. Research Status and Prospects of Low Temperature Selective Catalytic Reduction of NOx by MnOx-based Catalysts. Materials Reports, 2017, 31(11): 38-43.
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