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Selective reduction of NOx with C3H6 over Cu and Cr promoted CeO2 catalysts

Amin, Norsarahaida and Tan, Eng Fong and Manan, Z. A. (2003) Selective reduction of NOx with C3H6 over Cu and Cr promoted CeO2 catalysts. Applied Catalysis B: Environmental , 43 (1). pp. 57-69. ISSN 0926-3373

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Official URL: http://dx.doi.org/10.1016/S0926-3373(02)00275-8

Abstract

The Cu/CeO2 and Cu/Cr/CeO2 catalysts synthesized using the impregnation method were employed to investigate the selective reduction of NOx with C3H6 at 673.15 K and 1 atm. The activity of CeO2 was greatly induced by loading 4 wt.% of Cu onto the bare support. The presence of C3H6 was a crucial factor for elevating the NOx conversion under lean conditions. The modification of the optimal Cu(4)/CeO2 catalyst with 3 wt.% of Cr steadily improved the performance of the catalysts. Both the optimal Cu(4)/CeO2 and Cu(4)/Cr(3)/CeO2 catalysts were characterized using XRD, SEM and TPR-H2. The co-existence of CuO, Cr2O3 and CuCr2O4 was believed to grant the promising performance of the Cu(4)/Cr(3)/CeO2 catalyst in SCR-HC under net oxidizing conditions

Item Type:Article
Uncontrolled Keywords:Selective reduction of NOx with C3H6, CeO2, Oxygen, Cu, Cr
Subjects:T Technology > TP Chemical technology
Divisions:Chemical and Natural Resources Engineering (Formerly known)
ID Code:7236
Deposited By: Nur Amal Zakiah Shamsudin
Deposited On:02 Jan 2009 00:58
Last Modified:02 Jan 2009 00:58

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