Abstract Understanding the mechanism of carbon oxidation is important for the successful modeling of diesel particulate filter regeneration. Characteristics of soot oxidation were investigated with carbon black (Printex-U). A flow reactor system that could simulate the condition of a diesel particulate filter and diesel exhaust gas was designed. Kinetic constants were derived and the reaction mechanisms were proposed using the experimental results and a simple reaction scheme, which approximated the overall oxidation process in TPO as well as CTO. From the experiments, the apparent activation energy for carbon oxidation with $ NO_{2} $-$ O_{2} $-$ H_{2} $O was determined to be 40±2 kJ/mol, with the first order of carbon in the range of 10∼90% oxidation and a temperature range of 250∼500°C. This value was exceedingly lower than the activation energy of $ NO_{2} $-$ O_{2} $ oxidation, which was 60±3 kJ/mol. When $ NO_{2} $ exists with $ O_{2} $ and $ H_{2} $O, the reaction rate increases in proportion to $ NO_{2} $. It increases nonlinearly with $ O_{2} $ or $ H_{2} $O concentration when the other two oxidants are fixed.


    Access

    Access via TIB

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Measurement of soot oxidation with $ No_{2} $-$ O_{2} $-$ H_{2} $O in a flow reactor simulating diesel engine DPF


    Contributors:
    Jung, J. (author) / Lee, J. H. (author) / Song, S. (author) / Chun, K. M. (author)


    Publication date :

    2008




    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English


    Classification :

    BKL:    55.20$jStraßenfahrzeugtechnik / 55.20 Straßenfahrzeugtechnik



    Measurement of soot oxidation with No2-O2-H2O in a flow reactor simulating diesel engine DPF

    Jung, J. / Lee, J. H. / Song, S. et al. | British Library Online Contents | 2008


    Measurement of soot oxidation with No2-O2-H2O in a flow reactor simulating diesel engine DPF

    Jung, J. / Lee, J. H. / Song, S. et al. | Springer Verlag | 2008


    Quantitative Flow-Reactor Study of Diesel Soot Oxidation Process

    Yezerets, Aleksey / Suresh, Arvind / Eadler, Heather et al. | SAE Technical Papers | 2002


    Quantitative flow-reactor study of diesel soot oxidation process

    Yezerets,A. / Currier,N.W. / Eadler,H. et al. | Automotive engineering | 2001


    Oil soot measurement system for diesel engine

    Kato,N. / Moritsugu,M. / Mizuno,Y. et al. | Automotive engineering | 1998