Low-Temperature Selective Catalytic Reduction of NO with NH3 over MnOx-CeO2/ZrO2-TiO2 Monolith Catalyst

Abstract

Abstract: The catalysts of MnOx-CeO2/TiO2 (T) and MnOx-CeO2/ZrO2- TiO2 (ZT) were prepared by calcination at different temperatures (500, 600 , 7 00, and 800 ℃). Compared with the T catalysts, ZT catalysts exhibit better low -temperature SCR activity, wider reaction temperature window, and higher NO co nversion. ZT6 (MnOx-CeO2/ZrO2-TiO2 calcined at 600 ℃) showed the best low-temperature SCR activity and favorable stability at high temperature.

Key words: low-temperature selective catalytic reduction, manganese oxide, ceria, zirconium dioxide, titania, composite oxide, monolith catalyst, nitrogen oxide

LI Wei;LIN Tao;ZHANG Qiulin;GONG Maochu;CHEN Yaoqiang*. Low-Temperature Selective Catalytic Reduction of NO with NH3 over MnOx-CeO2/ZrO2-TiO2 Monolith Catalyst[J]. Chinese Journal of Catalysis, 2009, 30(2): 104-110.

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https://www.cjcatal.com/EN/Y2009/V30/I2/104

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Low-Temperature Selective Catalytic Reduction of NO with NH3 over MnOx-CeO2/ZrO2-TiO2 Monolith Catalyst

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