Unfiltered Diesel Engine Exhaust Treatment by Discharge Plasma: Effect of Soot Oxidation  

作　　者：B.S.Rajanikanth Subhankar Das A.D.Srinivasan 

机构地区：[1]Dept. of High Voltage Engineering, Indian Institute of Science, Bangalore 560012, India,Dept. of High Voltage Engineering, Indian Institute of Science, Bangalore 560012, India,Dept. of High Voltage Engineering, Indian Institute of Science, Bangalore 560012, India

出　　处：《Plasma Science and Technology》2004年第5期2475-2480,共6页等离子体科学和技术（英文版）

摘　　要：A cascaded system of electrical discharges (Non-thermal plasma), catalyst andadsorption process was investigated for the removal of oxides of nitrogen (NO_x) and carbonmonoxide (CO) from a Diesel engine raw exhaust. The three processes were separately studied first,and then 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, thecascaded plasma-adsorbent process exhibits a higher NO_x removal. The experiments were conductedunder no-load. The plasma and adsorbent reactors were kept at room temperature throughout theexperiment while the catalyst reactor was kept at 200℃ / 300℃.A cascaded system of electrical discharges (Non-thermal plasma), catalyst andadsorption process was investigated for the removal of oxides of nitrogen (NO_x) and carbonmonoxide (CO) from a Diesel engine raw exhaust. The three processes were separately studied first,and then 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, thecascaded plasma-adsorbent process exhibits a higher NO_x removal. The experiments were conductedunder no-load. The plasma and adsorbent reactors were kept at room temperature throughout theexperiment while the catalyst reactor was kept at 200℃ / 300℃.

关 键 词：discharge plasma diesel engine exhaust CATALYST ADSORBENT non-thermalplasma 

分 类 号：TK421[动力工程及工程热物理—动力机械及工程]