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The Design of Flow-Through Diesel Oxidation Catalysts
ISSN: 0148-7191, e-ISSN: 2688-3627
Published March 01, 1993 by SAE International in United States
Annotation ability available
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.
|Technical Paper||A New Generation of Diesel Oxidation Catalysts|
|Technical Paper||Diesel Catalysts for Low Particulate and Low Sulfate Emissions|
|Technical Paper||A Base Metal Oxide Catalyst for Reduction ofDiesel Particulates|
CitationWyatt, 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.
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