A Study of the Reaction Characteristics on Hydrocarbon Selective Catalytic Reduction of NOx Over Various Noble Metal Catalysts 


Vol. 17,  No. 3, pp. 225-230, Sep.  2011


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  Abstract

Characteristics of hydrocarbon selective catalytic reduction of NOx using various noble metal catalysts were investigated. The best active metal is Pt, supports are CeO2 and TiO2 by strong interactions between active metals, and 55% of conversion rate of NOx is shown. Pd, Rh and Ag catalysts presented a conversion of less than 20% as active metals, and supports also showed the poor activity compared to SiO2 and ZrO2. Experiments were performed with different types of reducing agents, amount, concentration of oxygen and space velocity in order to investigate the performance of catalysts according to operating conditions. The results confirm that the methane is better than propane as a reducing agent, and as the ratio of methane/nitrogen oxide increases, the catalytic activity increased, as the concentration of oxygen increases and space velocity decreases, the performance of catalysts increased.

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  Cite this article

[IEEE Style]

K. SS, J. DH, H. SC, "A Study of the Reaction Characteristics on Hydrocarbon Selective Catalytic Reduction of NOx Over Various Noble Metal Catalysts," Clean Technology, vol. 17, no. 3, pp. 225-230, 2011. DOI: .

[ACM Style]

Kim SS, Jang DH, and Hong SC. 2011. A Study of the Reaction Characteristics on Hydrocarbon Selective Catalytic Reduction of NOx Over Various Noble Metal Catalysts. Clean Technology, 17, 3, (2011), 225-230. DOI: .

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pISSN : 1598 - 9712
eISSN : 2288 - 0690

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