Promotional Mechanism of Sulfation on Selective Catalytic Reduction of NOx by Methane Over In/SO42–/TiO2

Chinese Journal of Catalysis ›› 2009, Vol. 30 ›› Issue (5): 459-464.

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Promotional Mechanism of Sulfation on Selective Catalytic Reduction of NOx by Methane Over In/SO42–/TiO2

JING Guohua1, 2, LI Junhua1,*, YANG Dong1, HAO Jiming1

1Department of Environmental Science and Engineering, Tsinghua University, Beijing 100084, China 2Department of Environmental Science and Engineering, Huaqiao University, Xiamen 361021, Fujian, China

Received:2009-05-25 Online:2009-05-25 Published:2013-02-05

Abstract

Abstract: The catalytic performance and the promotional mechanism of sulfation on selective catalytic reduction of NO by CH4 over sulfated titanium-loaded In (In/STi) were investigated. An enhancement of catalytic activity was obtained over the In/STi catalysts. The distinguish reaction intermediates of CH4-SCR of NO over the sulfated and unsulfated catalysts were revealed by DRIFTS analysis.

Key words: methane, selective catalytic reduction, nitric oxide, solid super acid, sulfation, titanic oxide

JING Guohua;;LI Junhua;*;YANG Dong;HAO Jiming. Promotional Mechanism of Sulfation on Selective Catalytic Reduction of NOx by Methane Over In/SO42–/TiO2[J]. Chinese Journal of Catalysis, 2009, 30(5): 459-464.

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Promotional Mechanism of Sulfation on Selective Catalytic Reduction of NOx by Methane Over In/SO42–/TiO2

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