Experimental Study on NO Pre-Oxidation in C3H6/NO/N2/O2 Mixture by Non-Thermal Plasma

Xiao Hua Li; Xing Wei; Yi Xi Cai; Wen He Han; Kang Hua Li

doi:10.4028/www.scientific.net/AMR.712-715.590

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 712-715Experimental Study on NO Pre-Oxidation in...

Experimental Study on NO Pre-Oxidation in C₃H₆/NO/N₂/O₂ Mixture by Non-Thermal Plasma

Abstract:

By using self-designed non-thermal plasma reactor, the influences of discharge power, initial concentration of C₃H₆ and O₂ concentration on NO pro-oxidation in C₃H₆/NO/N₂/O₂ mixture were studied. The obtained results indicate that with the increasing of discharge power, NO₂/NO_x ratio grows firstly and then decreases after reaching a peak value, while NO_x conversion efficiency and N₂O concentration gradually rise. Increasing initial concentration of C₃H₆ or O₂ concentration would help to enhance NO oxidation efficiency. With the same discharge power, NO_x conversion efficiency grows with the increasing of C₃H₆ initial concentration while reduces with the increasing of O₂ concentration. Controlling the concentration of C₃H₆ and O₂ in exhaust gas can lead the NO₂/NO_x ratio to reach 50%, which is benefit to NO_x conversion with SCR system.

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Periodical:

Advanced Materials Research (Volumes 712-715)

Pages:

590-596

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.712-715.590

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Online since:

June 2013

Authors:

Xiao Hua Li, Xing Wei, Yi Xi Cai, Wen He Han, Kang Hua Li

Keywords:

NO₂/NO_x Ratio, Non-Thermal Plasma, NO_x Conversion Efficiency, Pre-Oxidation

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