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CSR-deNOx with CO over Supported Pd Catalysts under Lean Conditions

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Abstract:

The catalytic selective reduction of NOx with CO over Pd/Al2O3 and Pd/TiO2/Al2O3 under lean conditions (called SCR-deNOx in simple way) was studied here. The performance of the catalysts with different Pd loadings for deNOx was investigated. The results showed that the 2.0 wt.% Pd/TiO2/Al2O3 and 1.5 wt.% Pd/Al2O3 catalysts displayed optimum deNOx activities of 46% and 20% at 200°C, respectively. TEM, XRD, XPS and SEM were utilized to characterize the catalysts. Metallic palladium is thought to be the active site which highly dispersed on the catalyst supports. The synergy between TiO2 and Al2O3 or Pd is thought to be the reason for the obvious improvement in deNOx process.

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Periodical:

Applied Mechanics and Materials (Volumes 675-677)

Pages:

145-148

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.675-677.145

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Online since:

October 2014

Authors:

Ying Hua Li, Lu Bai, Fei Zhao, Ji Ying Zou, Hui Liu, Yu Zhang*

Keywords:

Carbon Monoxide, Characterization, CSR-deNOx, Pd Catalysts

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© 2014 Trans Tech Publications Ltd. All Rights Reserved

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