Diesel particle emission reduction by a particle oxidation catalyst

K. Lehtoranta, P. Matilainen, T. J.J. Kinnunen, J. Heikkilä, T. Rönkkö, Jorma Keskinen, T. Murtonen

    Research output: Contribution to journalArticleScientificpeer-review

    18 Citations (Scopus)


    State-of-art light duty diesel vehicles and heavy duty diesel engines are utilized in studying the effect of a novel particle oxidation catalyst (POC ®) on particle emission. In addition to the regulated particulate matter (PM) emission measurement, a real time mass emission and particle number size distribution measurements are utilized in testing. The results show that the particle oxidation catalyst can have a significant decreasing effect on the diesel exhaust particle emissions. For example, in light duty applications PM reductions of 55-61% were achieved over the New European Driving Cycle (NEDC) when using a POC of same size as the engine volume. The usage of a DOC in combination with the POC ensures proper regeneration of the POC substrate. The size distribution measurements revealed that the particle number collection efficiency for smaller particles i.e. the nanoparticles was very high, being close to 100 %.

    Original languageEnglish
    Number of pages10
    JournalSAE Technical Paper Series
    Issue number2009-01-2705
    Publication statusPublished - 1 Dec 2009
    MoE publication typeA1 Journal article-refereed
    EventSAE 2009 Powertrains Fuels and Lubricants Meeting, FFL 2009 - San Antonio, TX, United States
    Duration: 2 Nov 20092 Nov 2009


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