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The Design of Flow-Through Diesel Oxidation Catalysts
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Abstract
Progress made in reducing engine-out particulate emissions has prompted a revival in the design of flow-through oxidation catalysts for diesel engine applications. Effort in this area has focused primarily in the area of SOF control for the further reduction of particulate emissions. The work reported here covers some of the catalyst design parameters important for SOF and gas phase pollutant control. This is illustrated with both laboratory reactor and engine evaluation data for several formulary and operating parameters. Platinum-based catalysts are shown to be generally the most active, but they require treatments or additives to reduce the inherently high activity of platinum for the oxidation of SO2 present in the exhaust. The effect of additives and their loading on the oxidation activity of Pt/alumina for HC, CO, SOF and SO2 oxidation is discussed in detail and additives are identified which reduce SO2 oxidation with minimal effect on HC, CO or SOF oxidation activity. Aged performance for light duty applications is discussed for the best catalyst formulation that resulted from this work.
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Authors
Citation
Wyatt, M., Manning, W., Roth, S., D'Aniello, M. et al., "The Design of Flow-Through Diesel Oxidation Catalysts," SAE Technical Paper 930130, 1993, https://doi.org/10.4271/930130.Also In
References
- Walsh M. P., “Controlling Motor Vehicle Emissions,” Platinum Metals Rev., 33 (1989), 194.
- Church M. L., Cooper B. J. and Willson P. J., “Catalyst Formulations 1960 to Present,” SAE Paper No. 890815, February, 1989.
- Searles R. A., “Automobile Exhaust Emissions Control. Legislation to Protect the European Environment,” Platinum Metals Rev., 29 (1985), 163.
- Searles R. A., “Car Exhaust Pollution Control,” Platinum Metals Rev., 32 (1988), 123.
- Andrews G. E., Iheozor-Ejiofor I. E. and Pang S. W., “Diesel Particulate SOF Emissions Reduction Using an Exhaust Catalyst,” SAE Paper 870251 (SP-702), 1987.
- Horiuchi M., Saito K. and Ichihara S., “The Effects of Flow-through Type Oxidation Catalysts on the Particulate Reduction of 1990's Diesel Engines,” SAE Paper 900600 (SP-816), 1990.
- Ball D. J. and Stack R. G., “Catalyst Considerations for Diesel Converters, SAE Paper 902110 (SP-839), 1990.
- Zelenka P., Ostgathe K. and Lox E., “Reduction of Diesel Engine Emissions by Using Oxidation Catalysts,” SAE Paper 902111 (SP-839), 1990.
- Lox E. S., Engler B. H. and Koberstein E., “Diesel Emission Control,” in Catalysis and Automotive Pollution Control II, Crucq A., ed., Elsevier, Amsterdam, 1991, p. 291.
- Ball D. J. and Stack R. G., “Catalysts for Diesel Powered Vehicles,” in Catalysis and Automotive Pollution Control II, Crucq A., ed., Elsevier, Amsterdam, 1991, p. 337.
- Arai M., “SOF Reduction and Sulfate Formation Characteristics by Diesel Catalyst,” SAE Paper 910328 (SP-240), 1991.
- Horiuchi M., Saito K. and Ichihara S. “Sulfur Storage and Discharge Behavior on Flow-Through Type Oxidation Catalysts,” SAE Paper 910605 (P-240), 1991.
- Cooper B. J. and Roth S. A., “Flow-through Catalysts for Diesel Engine Emission Control,” Platinum Metals Rev., 35 (1991), 178.
- Khair M. K. and Bykowski B. B., “Design and Development of Catalytic Converters for Diesels,” SAE Paper 921677 (SP-931), 1992.
- Bear F., Fredholm S. C. G. and Andersson E. S., “The Role of the Through Flow Oxidation Catalyst in the Development of a Low Emissions Specification HD Diesel Engine,” SAE Paper 920367 (SO-896), 1992.
- Henk M. G., Williamson W. B. and Silver R. G., “Diesel Catalyst for Low Particulate and Low Sulfate Emissions,” SAE Paper 920368, 1992.
- Beckmann R., Engeler W., Mueller E., Engler B. H., Leyrer J., Lox E. S. and Ostgathe K., “A New Generation of Diesel Oxidation Catalysts,” SAE Paper 922330 (SP-938), 1992.
- Domesle R., Volker H., Koberstein E. and Pietka H-D., “Catalyst for Reducing the Ignition Temperature of Soot,” US Patent No. 4,477,417 (1984).
- Domesle R., Engler B., Koberstein E. and Volker H., “Apparatus for the Purification of Exhaust Gas from Diesel Motors,” US Patent No. 4,900,517 (1990).
- Ciambelli P., Parrella P., and Vaccaro S., “Kinetics of Soot Oxidation on Potassium-Copper-Vanadium Catalyst,” in Catalysis and Automotive Pollution Control II, Crucq A., ed., Elsevier, Amsterdam, 1991, p. 323.
- Saito K., Ueda K., Ikeda K. and Ono T., “Catalyst for Purifying Diesel Exhaust Gases,” European Patent No. 174,495, (1989).
- Domesle R., Engler B., Koberstein E. and Volker H., “Verfahren zur Reinigung der Abgase von Dieselmotoren,” German Patent Application DE 39 40 758 A1 (1989).
- Domesle R., Engler B., Koberstein E. and Volker H., “Process for the Purification of the Exhaust Gases of Diesel Engines,” Canadian Patent Application 2,031,762 (1990).