Nonthermal plasma (NTP) technology was used to promote the temperature-programmed oxidation (TPO)of particulate matter (PM) over a perovskite type of La0.8K0.2Mn03 catalyst. The ionic wind induced by plasma enhances the quantity of the nitrogen oxides (NOx) adsorbed onto the catalyst surface, and therefore promotes the reactions between the soluble organic fraction (SOF) and NOx, as well as the redox reaction between soot and NOx. Furthermore, the plasma process improved SOF oxidation by enhancing the NO2 amount, which is an indispensable intermediate in SOF oxidation and NOx reduction. It was found that the O radicals originating from the decomposition of O2 advance PM oxidation, and the ignition temperatures of soot can be reduced efficiently by the plasma process. The reactions between PM and NOx, as well as the decomposition of nitrogen monoxide (NO) in plasma, will create N2, and the N2/NO rate (conversion rate of NO into N2) can be promoted markedly by the plasma process.


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    Titel :

    Temperature-programmed oxidation of diesel particulate matter in a hybrid catalysis-plasma reactor


    Beteiligte:
    Lin, He (Autor:in) / Huang, Zhen (Autor:in) / Shangguan, Wenfeng (Autor:in) / Peng, Xiaosheng (Autor:in)


    Erscheinungsdatum :

    2006


    Format / Umfang :

    8 Seiten, 9 Bilder, 23 Quellen


    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




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