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Effect of Sn on MnOx–CeO2 catalyst for SCR of NOx by ammonia: Enhancement of activity and remarkable resistance to SO2

Paper ID Volume ID Publish Year Pages File Format Full-Text
49968 46775 2012 4 PDF Available
Title
Effect of Sn on MnOx–CeO2 catalyst for SCR of NOx by ammonia: Enhancement of activity and remarkable resistance to SO2
Abstract

SnO2–MnOx–CeO2 catalysts prepared by a co-precipitation method have been investigated for NH3-SCR reaction. The catalyst with a molar ratio of Sn / (Sn + Mn + Ce) = 0.1 showed complete conversion of NO in a temperature range of 80–230 °C. A remarkably high activity, N2 selectivity and SO2 resistance was obtained at 200–500 °C, attributed to the significantly enhanced Lewis acid sites that are created by surface sulfation during SO2-containing SCR reaction.

Graphical abstractFigure optionsDownload full-size imageDownload as PowerPoint slideHighlights► The SnO2-MnOx-CeO2 catalyst showed 100% conversion of NO at 80–230°C. ► A remarkably high N2 selectivity and SO2 resistance was obtained at 200–500°C. ► The Lewis acid sites are significantly enhanced by SO2 poisoning in SCR reaction.

Keywords
MnOx–CeO2; SnO2; NH3-SCR; Lewis acid site; SO2 resistance
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Effect of Sn on MnOx–CeO2 catalyst for SCR of NOx by ammonia: Enhancement of activity and remarkable resistance to SO2
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 27, 5 October 2012, Pages 54–57
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
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Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
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Any Questions? feel free to contact us