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Investigation of the Aging Behavior of Oxidation Catalysts Developed for Active DPF Regeneration Systems
Technical Paper
2005-01-1759
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
The combustion efficiencies of diesel oxidation catalysts (DOC) targeted for use in the heat-up role of active diesel particulate filter (DPF) systems are investigated. Light-off tests using synthetic gases and fuel injection studies on light and heavy duty engines, both before and after thermal aging, are carried out. These evaluations are used to demonstrate differences in activity between closely related Pt-only and Pt/Pd formulations. Post-mortem analyses are conducted to determine the basis for the performance differences observed during the fuel injection studies. These analyses include measurement of the accumulation of carbonaceous compounds on catalyst surfaces which are associated with incomplete combustion of the injected fuel. Aging cycles developed for DOC+DPF systems incorporating heat-up by in-exhaust fuel injection on heavy-duty diesel engines are presented. The impact of these aging cycles on the performance of a Pt/Pd catalyst are summarized.
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Nakane, T., Ikeda, M., Hori, M., Bailey, O. et al., "Investigation of the Aging Behavior of Oxidation Catalysts Developed for Active DPF Regeneration Systems," SAE Technical Paper 2005-01-1759, 2005, https://doi.org/10.4271/2005-01-1759.Also In
Diesel Exhaust Emission Control and Modeling on CD-ROM from the SAE 2005 World Congress
Number: SP-1981CD; Published: 2005-04-11
Number: SP-1981CD; Published: 2005-04-11
References
- http://www.dieselnet.com/standards.html
- Jeuland N et al “Performance and Durability of DPF Tested on a Fleet of Peugeot 607 Taxis: Final results” SAE Paper 2004-01-0073
- Toorisaka H. et al “DPR Developed for Extremely Low PM Emissions in Production Commercial Vehicles” SAE Paper 2004-01-0824
- Mayer A. et. al “Reliability of DPF-Systems: Experiences with 6000 Applications of the Swiss Retrofit Fleet” SAE Paper 2004-01-0076
- Cooper B.J. et. al. “Role of NO in Diesel Particulate Emission Control” SAE Paper 890404
- Gieshoff J. et. al “Regeneration of catalytic diesel particulate filters” SAE Paper 2001-01-0907
- Salvat O. et. al Passenger Car Serial Application of Particulate Filter System on a Common Rail Direct Injection Diesel Engine SAE Paper 2000-01-0473
- Hiranuma S. et. al. Development of DPF system for Commercial Vehicle SAE Paper 2003-01-3182