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Catalyzed Diesel Particulate Filter Performance in A Light-Duty Vehicle
Technical Paper
2000-01-2848
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Light-duty chassis dynamometer driving cycle tests were conducted on a Mercedes A170 diesel vehicle with various sulfur-level fuels and exhaust emission control systems. Triplicate runs of a modified light-duty federal test procedure (FTP), US06 cycle, and SCO3 cycle were conducted with each exhaust configuration and fuel. Ultra-low sulfur (3-ppm) diesel fuel was doped to 30- and 150-ppm sulfur so ppm sulfur so that all other fuel properties remained the same. The fuels used in these experiments met the specifications of the fuels from the DECSE (Diesel Emission Control Sulfur Effects) program.
Although the Mercedes A170 vehicle is not available in the United States, its emissions in the as tested condition fell within the U.S. Tier 1 full useful life standards with the OEM catalysts installed. Tests with the OEM catalysts removed showed that the OEM catalysts reduced PM emissions from the engine-out condition by 30-40% but had negligible effects on NOx emissions. Fuel sulfur level had very little effect on the OEM catalyst performance.
A prototype catalyzed diesel particulate filter (CDPF) mounted in an underfloor configuration reduced particulate matter emissions by more than 90% compared to the factory emissions control system. The results show that the CDPF did not promote any significant amounts of SO2-to-sulfate conversion during these light-duty drive cycles.
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Sluder, C. and West, B., "Catalyzed Diesel Particulate Filter Performance in A Light-Duty Vehicle," SAE Technical Paper 2000-01-2848, 2000, https://doi.org/10.4271/2000-01-2848.Also In
References
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