Effect of Sulfation on the Selective Catalytic Reduction of NO with NH3 Over γ-Fe2O3

Because the site for NH 3 adsorption and the active site for NH 3 oxidization were separated after the sulfation, both the SCR reaction and the catalytic oxidization of NH 3 to NO over γ-Fe 2 O 3 were restrained after the sulfation. As a result, the operation temperature window of γ-Fe 2 O 3 for the...

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Veröffentlicht in:	Catalysis letters 2014-04, Vol.144 (4), p.578-584
Hauptverfasser:	Huang, Haili, Lan, Yi, Shan, Wenpo, Qi, Feihong, Xiong, Shangcao, Liao, Yong, Fu, Yuwu, Yang, Shijian
Format:	Artikel
Sprache:	eng
Schlagworte:	Ammonia Catalysis Chemistry Chemistry and Materials Science Exact sciences and technology General and physical chemistry Industrial Chemistry/Chemical Engineering Organometallic Chemistry Physical Chemistry Selective catalytic reduction Sulfation Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry
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Zusammenfassung:	Because the site for NH 3 adsorption and the active site for NH 3 oxidization were separated after the sulfation, both the SCR reaction and the catalytic oxidization of NH 3 to NO over γ-Fe 2 O 3 were restrained after the sulfation. As a result, the operation temperature window of γ-Fe 2 O 3 for the SCR reaction shifted about 100 °C to higher temperature after the sulfation. Graphical Abstract
ISSN:	1011-372X 1572-879X
DOI:	10.1007/s10562-013-1174-4