3202 Low Temperature Oxidation of Diesel Soot using Barrier Discharge Plasma and Oxidation Catalyst
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A study of continuous oxidation of diesel soot was carried out using a non-thermal plasma method to develop a new particulate after-treatment system. The work presented focuses on development of a high-frequency dielectric barrier discharge reactor for oxidation of NO to NO_2 in diesel exhaust and low-temperature oxidation of diesel soot with NO_2. Soot oxidation with plasma NO_2 gas begins at temperature of about 260℃ that is 100℃ lower than that of O_2. It is clear that oxidation catalyst such as hematite and palladium promote soot oxidation, and χ-alumina is effective as impregnation materials of catalyst.
