Influences of Preparation Parameters of Catalyst Support on the SCR Denitration Activity of Mn-Ce/TiO₂

Abstract:

The catalytic performance of NO removal was studied over Mn-Ce/TiO₂ catalysts prepared by different preparation parameters, such as preparation method, Ce/(Mn+Ce) molar ratio and calcination temperature. It was found that samples prepared by co-precipitation method, which had the largest surface area and highly dispersed active component particles, showed the best denitrification activity. The highest NO conversion of 95% is achieved at the Ce/(Mn+Ce) molar ratio of 15% which is much higher than that of the pure manganese constituent. The increase of calcining temperature favored the crystallization of active components, leading to the decline of catalytic activity.

• Periodical: Key Engineering Materials (Volume 697)
• Pages: 279-283
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.697.279
• Online since: July 2016
• Authors: Yan Xia Wu, Hai Long Liang, Xin Chen, Jie Tang, Yu Feng Chen, Chun Lin Zhao*
• Keywords: Calcination Temperature, Denitration, Low Temperature SCR, Mn-Ce/TiO₂

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