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《High Voltage Apparatus》 2010-07
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Activation and Reduction of CH_4 and NO_x in Different Discharge Plasmas

NIU Jin-hai1,ZHANG Zhi-hui2,LIU Dong-ping1 (1. Institute of Optoelectronic Technology,Dalian Nationalities University,Dalian 116600,China; 2. Dalian Railway Medical School,Dalian 116001,China)  
Pure pulsed spark discharge,pulsed streamer discharge(needle to plane,wire to cylinder),and dielectric barrier discharge (DBD,positive pulsed,alternative current)have been investigated in application to CH4 activation and reduction of NOx. Results show that CH4 can be effectively activated in pulsed spark discharge and needle to plane streamer discharge,the maximum value is 100% and 36%,respectively. But large amounts of NOx are generated in the mixtures of N2 and O2 atmosphere,such as NO output is 449 μL/L,when 9.8% O2 added to needle to plane pulsed streamer discharge. In wire to cylinder pulsed streamer discharge,CH4 conversion efficiency is smaller than 3% and the maximum removal efficiency of NO is only 25%. In positive pulsed DBD plasmas,NO and CH4 conversion are 31% and 4.4% at input voltage of 21.6 kV and input power of 6.4 W. In alternative current DBD plasmas,low temperature is beneficial to NO conversion,34.5% of NO is eliminated at 100 ℃ and input power of 6 W. While CH4 conversion is quite lower.
【Fund】: 国家自然科学基金(20803007 10875025);; 辽宁省教育厅高等学校科研项目(2009B049);; 大连民族学院人才引进基金资助项目(20076205)
【CateGory Index】: O539
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Chinese Journal Full-text Database 1 Hits
1 Cheng Guohong, Li Shengli and Zhang Yinghui(Environmental Science and Engineering College of Huazhong Science and Technology University);ACTIVATION OF CH4 AND CATALYTIC REDUCTION OF NOX BY HIGH VOLTAGE PULSE DISCHARGING PLASMA[J];Natural Gas Industry;2004-12
Chinese Journal Full-text Database 1 Hits
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