A Novel Catalytic Activity of Ce-Zr-Mn-OX Mixed Oxides for Low Temperature Selective Catalytic Reduction of NO with NH3

Qiu Lin Zhang; Zhong Xian Song; Ping Ning; Jun Jie Gu

doi:10.4028/www.scientific.net/AMR.864-867.635

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 864-867A Novel Catalytic Activity of Ce-Zr-Mn-OX Mixed...

A Novel Catalytic Activity of Ce-Zr-Mn-OX Mixed Oxides for Low Temperature Selective Catalytic Reduction of NO with NH₃

Abstract:

A Ce-Zr-Mn-O_x (CZM) catalyst has been discovered for selective catalytic reduction of NO_x with NH₃ in the presence of O₂. In this paper, The catalysts of CZM with 10~50 wt% MnO₂content and Ce-Zr-O₂(CZ) catalyst are prepared by hydrothermal synthesis method. The catalytic activity of CZM catalysts at different temperatures, different space velocities and different ratios of NH₃/NO are studied. The results show that the catalyst of CZM with 40 wt% MnO₂content yields higher NO conversion at low temperature than others. This catalyst shows nearly 90% NO_x conversion in a temperature range of 150°C~250 °C at a space velocity of 53000 h^-1 .

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Periodical:

Advanced Materials Research (Volumes 864-867)

Pages:

635-639

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.864-867.635

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Online since:

December 2013

Authors:

Qiu Lin Zhang*, Zhong Xian Song, Ping Ning, Jun Jie Gu

Keywords:

Ce-Zr-Mn-O_X Catalyst, Hydrothermal Synthesis Method, Selective Catalytic Reduction (SCR)

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