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Performance of a Catalyzed Diesel Particulate Filter System During Soot Accumulation and Regeneration
Technical Paper
2003-01-0047
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
The trapping and regeneration behaviors of a diesel particulate filter (DPF), including particle size, are examined via engine dynamometer testing. The exhaust system consists of two active lean NOx (ALN) catalysts in series followed by a catalyzed DPF. Forced regenerations are accomplished by injecting diesel fuel into the exhaust in front of the ALN catalysts to generate an exotherm sufficient to induce soot oxidation. Results are reported for two diesel fuels, one with 340 ppm sulfur, and the other with 4 ppm sulfur, and as a function of DPF regeneration temperature. The results show the DPF to be very effective at removing particulate matter, >99% efficiency. The <1% of particles that escape trapping exhibit a size distribution very similar to engine out soot. During regeneration, particle emissions remain well below engine out levels for the low sulfur fuel, but exhibit a temporary nucleation mode of about ten times the engine out level for the high sulfur fuel. The regeneration rate increases exponentially with temperature, and the fastest regenerations suffer the lowest fuel economy penalty.
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Guo, G., Xu, N., Laing, P., Hammerle, R. et al., "Performance of a Catalyzed Diesel Particulate Filter System During Soot Accumulation and Regeneration," SAE Technical Paper 2003-01-0047, 2003, https://doi.org/10.4271/2003-01-0047.Also In
Diesel Emission Measurement, Modeling, & Control from the SAE 2003 World Congress on CD-ROM
Number: SP-1754CD; Published: 2003-03-03
Number: SP-1754CD; Published: 2003-03-03
References
- Hammerle, R. H. Ketcher, D. Horrocks, R. “Emission from Current Diesel Vehicles” SAE Paper 942043 1994
- Walsh, M. “Global Trends in Diesel Emissions Control - A 1999 Update” SAE paper 1999-0100107 1999
- Baumgard, K. J. Kittelson, D. B. “The Influence of a Ceramic Particle Trap on the Size Distribution of Diesel Particles” SAE 850009 1985
- Pattas, K. Kyriakis, N. Samaras, Z. Pistikopoulos, P. Ntziachristos, L. “Effect of DPF on Particulate Size Distribution Using an Electrical Low Pressure Impactor” SAE paper 980544 1998
- Khair, M. Lemair, J. Fischer, S. “Achieving Heavy-Duty Diesel NOx/PM Levels Below the EPA 2002 Standards - An Integrated Solution” SAE paper 2000-01-0187 2000
- Chandler G. R. Cooper B. J. Harris J. P. Thoss J. E. Uusimäki A. Walker A. P. Warren J. P. “An Integrated SCR and Continuously Regenerating Trap System to Meet Future NOx and PM Legislation” SAE paper 2000-01-0188 2000
- Konstandopoulos, A. G. Johnson, H. J. “Wall-Flow Particulate Filters-Their Pressure Drop and Collection Efficiency” SAE paper 890405 1989
- Carberry, B. Horrocks, R. Backes, R. Ketcher, D. “A Focus on Current and Future Particulate Aftertreatment Syatems” SAE paper 984263 1998
- Hawker, P. Hüthwohl, G. Henn, J. Koch, W. Lüders, H. Lüers, B. Stommel, P. “Effect of a Continuously Regenerating Diesel Particulate Filter on Non-Regulated Emissions and Particle Size Distribution” SAE paper 980189 1989
- Luder, H. Backes, R. Application for Regeneration of Diesel Particulates Traps by Combining Different Regeneration Systems SAE paper 970470