Low-temperature selective catalytic reduction of NO with NH3 based on MnOx-CeOx/ACFN |
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Authors: | Boxiong SHEN Ting LIU Zhanliang SHI Jianwei SHI Tingting YANG Ning ZHAO |
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Affiliation: | (1) College of Environmental Science and Engineering, Nankai University, Tianjin, 300071, China |
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Abstract: | MnO
x
-CeO
x
/ACFN were prepared by the impregnation method and used as catalyst for selective catalytic reduction of NO with NH3 at 80°C-150°C.
The catalyst was characterized by N2-BET, scanning electron microscopy (SEM) and Fourier transform infrared spectroscopy (FT-IR). The fraction of the mesopore
and the oxygen functional groups on the surface of activated carbon fiber (ACF) increased after the treatment with nitric
acid, which was favorable to improve the catalytic activities of MnO
x
-CeO
x
/ACFN. The experimental results show that the conversion of NO is nearly 100% in the range 100°C-150°C under the optimal preparation
conditions of MnO
x
-CeO
x
/ACFN. In addition, the effects of a series of performance parameters, including initial NH3 concentration, NO concentration and O2 concentration, on the conversion of NO were studied.
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Translated from Chemical Industry and Engineering Progress, 2007, 27(1): 87–91 译自: 化工进展] |
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Keywords: | low-temperature SCR MnO x -CeO x /ACFN NO conversion mesopore fraction oxygen functional group |
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