Fundamental study of NOx removal from diesel exhaust gas by dielectric barrier discharge reactor

被引：32
|
作者：
Tran Quang Vinh [1 ]
Watanabe, Shuya [1 ]
Furuhata, Tomohiko [1 ]
Arai, Masataka [1 ]
机构：
[1] Gunma Univ, Dept Mech Syst Engn, Kiryu, Gunma 3768515, Japan
来源：
JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY | 2012年 / 26卷 / 06期
关键词：
Dielectric barrier discharge; Diesel particulate filter; Non-thermal plasma; NOx; Particulate matter; COMPRESSION IGNITION ENGINES; CORONA DISCHARGE; NITROGEN-OXIDES; REDUCTION; SOOT;
D O I：
10.1007/s12206-012-0402-y
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
Due to increasingly stringent emission legislation, it is essential to find a solution of eliminating nitrogen oxides (NOx) from diesel exhaust gas. Non-thermal plasma (NTP) approach has been studied for years and has shown advantages. In this study, NOx removal from simulated diesel exhaust gas by a dielectric barrier discharge needle-to-cylinder reactor under room temperature condition is presented. The dielectric barrier consists of a diesel particulate filter (DPF) putting in the discharge field. A simulation gas of N-2, NO and O-2 combined with particulate matters (PM) was used as the test gas. PM was loaded from a diffusion flame PM generator. The effect of PM and oxygen fraction in exhaust gas on NOx removal characteristics was investigated experimentally. The results showed that PM promoted NOx removal reactions in the barrier discharge field but its effect was dropped following elapsed time. In addition, for PM composition, soluble organic fractions and sulphate were decreased with NOx removal. Besides, the chemical reaction mechanism inside reactor was discussed.
引用
收藏
页码：1921 / 1928
页数：8
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