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A cascaded system of electrical discharges (Non-thermal plasma), catalyst and ad-sorption process was investigated for the removal of oxides of nitrogen (NO_x) and carbon monoxide(CO) from a Diesel engine raw exhaust. The three processes were separately studied first, andthen the cascaded processes, namely plasma-catalyst and plasma-adsorbent, were investigated. Inthis paper main emphasis was laid on the effect of carbonaceous soot oxidation on the plasmatreatment process. While the cascaded plasma-catalyst process exhibits a higher CO removal,the cascaded plasma-adsorbent process exhibits a higher NO_x removal. The experiments wereconducted under no-load. The plasma and adsorbent reactors were kept at room temperaturethroughout the experiment while the catalyst reactor was kept at 200℃/300℃.
A cascaded system of electrical discharges (Non-thermal plasma), catalyst and ad-sorption process was investigated for the removal of oxides of nitrogen (NO x) and carbon monoxide (CO) from a Diesel engine raw exhaust. first, andthen the cascaded processes, ie plasma-catalyst and plasma-adsorbent, were investigated. While the cascaded plasma-catalyst process exhibits a higher CO removal, The cascaded plasma-adsorbent process exhibits a higher NO_x removal. The experiments wereconducted under no-load. The plasma and adsorbent reactors were kept at room temperaturethroughout the experiment while the catalyst reactor was kept at 200 ° C / 300 ° C.