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Sulfur Tolerance of Selective Partial Oxidation of NO to NO2 in a Plasma
Technical Paper
1999-01-3687
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Several catalytic aftertreatment technologies rely on the conversion of NO to NO2 to achieve efficient reduction of NOx and particulates in diesel exhaust. These technologies include the use of selective catalytic reduction of NOx with hydrocarbons, NOx adsorption, and continuously regenerated particulate trapping. These technologies require low sulfur fuel because the catalyst component that is active in converting NO to NO2 is also active in converting SO2 to SO3. The SO3 leads to increase in particulates and/or poison active sites on the catalyst. A non-thermal plasma can be used for the selective partial oxidation of NO to NO2 in the gas-phase under diesel engine exhaust conditions. This paper discusses how a non-thermal plasma can efficiently oxidize NO to NO2 without oxidizing SO2 to SO3.
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Penetrante, B., Brusasco, R., Merritt, B., and Vogtlin, G., "Sulfur Tolerance of Selective Partial Oxidation of NO to NO2 in a Plasma," SAE Technical Paper 1999-01-3687, 1999, https://doi.org/10.4271/1999-01-3687.Also In
Non-Thermal Plasma for Exhaust Emission Control: Nox, Hc, and Particulates
Number: SP-1483; Published: 1999-10-25
Number: SP-1483; Published: 1999-10-25
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