To reduce NOx and Particulate Matter (PM) emissions from a heavy-duty diesel engine, the effects of urea selective catalytic reduction (SCR) systems were studied. Proto type urea SCR system was composed of NO oxidation catalyst, SCR catalyst and ammonia (NH3) reduction catalyst. The NOx reduction performance of urea SCR system was improved by a new zeolite type catalyst and mixer for urea distribution at the steady state operating conditions. NOx and PM reduction performance of the urea SCR system with DPF was evaluated over JE05 mode of Japan. The NOx reduction efficiency of the urea SCR catalyst system was 72% at JE05 mode. The PM reduction efficiency of the urea SCR catalyst system with DPF was 93% at JE05 mode. Several kinds of un-regulated matters were detected including NH3 and N2O leak from the exhaust gas. It is necessary to have further study for detailed measurements for un-regulated emissions from urea solution.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    The Study of NOx and PM Reduction Using Urea Selective Catalytic Reduction System for Heavy Duty Diesel Engine


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    SAE World Congress & Exhibition ; 2007



    Publication date :

    2007-04-16




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    The Study of NOx and PM Reduction Using Urea Selective Catalytic Reduction System for Heavy Duty Diesel Engine

    Hosoya, M. / Kawada, Y. / Sato, S. et al. | British Library Conference Proceedings | 2007



    study on the NOx Reduction of Urea-Selective Catalytic Reduction(SCR) System in a Heavy-Duty Diesel Engine

    Kang, H. / Cho, I. / Lee, W. et al. | British Library Conference Proceedings | 2007


    A Study on the NOx Reduction of Urea-Selective Catalytic Reduction(SCR) System in a Heavy-Duty Diesel Engine

    Cho, I. / Lee, S. / Kang, H. et al. | British Library Conference Proceedings | 2007


    A Study on the NOx Reduction of Urea-Selective Catalytic Reduction(SCR) System in a Heavy-Duty Diesel Engine

    Baik, Doo Sung / Kang, Hoin / Lee, Seangwock et al. | SAE Technical Papers | 2007