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SCR of NOx by C3H6: comparison between Cu/Cr/CeO2 and Cu/Ag/CeO2 catalysts

Saidina Amin, Nor Aishah and Abdul Manan, Zainuddin and Tan, E. F. (2004) SCR of NOx by C3H6: comparison between Cu/Cr/CeO2 and Cu/Ag/CeO2 catalysts. Journal of Catalysis, 222 . pp. 100-106. ISSN 00219517

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Official URL: http://dx.doi.org/10.1016/j.jcat.2003.10.005

Abstract

The influence of cocations (Cr and Ag) on the activity of Cu/CeO 2 catalysts in the selective reduction of NOx with C 3H6 has been investigated in this study. The reduction of NOx under lean conditions was greatly improved by loading Cr and Ag onto a Cu/CeO2 catalytic system. All the synthesized bimetal catalysts were characterized using XRD and TPR-H2. The better metal-support interaction and metal dispersion shown by Cu/Ag/CeO2 have elevated its performance compared to the Cu/Cr/CeO2 catalyst. By having such salient features, the competitiveness factor (S SCR-HC) assigned by Cu/Ag/CeO2 was generally better than that of the other tested catalysts. The presence of O2 was proven to be a very crucial factor for promoting the selective reduction of NO x with C3H6.

Item Type:Article
Uncontrolled Keywords:selective reduction of NOx with C3H6, CeO2, Cu, Cr, Ag
Subjects:Q Science > QD Chemistry
Divisions:Chemical Engineering
ID Code:12337
Deposited By: Liza Porijo
Deposited On:19 May 2011 06:51
Last Modified:22 Jul 2011 08:17

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