期刊
CATALYSIS COMMUNICATIONS
卷 50, 期 -, 页码 83-86出版社
ELSEVIER
DOI: 10.1016/j.catcom.2014.03.008
关键词
SO42-/AC catalyst; SO2; H2O; Oxygen-containing functional group; Carbon
资金
- National Natural Science Foundation of China [21177136, 21106174, 21103218]
- Strategic Priority Research Program of the Chinese Academy of Sciences [XDA07030300]
- international cooperation of Shanxi Province [2012081019]
The selective catalytic reduction (SCR) of NO with NH3 at low temperature over a novel SO42-/AC catalyst (activated coke supported sulfate acid) was investigated especially in the presence of SO2 and H2O. A higher SCR activity and stability were attributed to the cooperation of the oxygen-containing function group and carbon. SO2 promoted SCR activity, which was due to the formation of H2SO4 on the catalyst surface and adsorbed more NH3. The capillary condensation of H2O in the micropores of the catalyst inhibited SCR activity and the reaction of adsorbed NH3 and NO. (C) 2014 Elsevier B.V. All rights reserved.
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