Research of SO2 Resistance of MnOx Catalyst Modified by Ce for Low Temperature SCR with NH3

Abstract:

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Two catalysts, MnOx and ceria modified MnOx were prepared by deposition-precipitation method and used for low-temperature selective catalytic reduction (SCR) with NH3 in the presence of SO2. The catalysts were characterized by X-ray diffraction (XRD), surface area measurement (BET) and thermal gravimetry analysis(TG). The deactivation of MnOx and MnOx-CeO2 by SO2 was observed during SCR process. It was found that the resistance to SO2 could be greatly enhanced for Ce modified MnOx. It was because that the formation of Mn(SO4)x was prevented and the depositions of (NH4)2SO4 and NH4HSO 4 were significantly inhibited with the doping of ceria.

Info:

Periodical:

Advanced Materials Research (Volumes 356-360)

Edited by:

Hexing Li, Qunjie Xu and Daquan Zhang

Pages:

529-532

DOI:

10.4028/www.scientific.net/AMR.356-360.529

Citation:

Y. Wang et al., "Research of SO2 Resistance of MnOx Catalyst Modified by Ce for Low Temperature SCR with NH3", Advanced Materials Research, Vols. 356-360, pp. 529-532, 2012

Online since:

October 2011

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Price:

$35.00

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