Diesel particulate matter and NOx removals using a pulsed corona surface discharge

被引：28
|
作者：
Yao, S [1 ]
Okumoto, M
Yashima, T
Shimogami, J
Madokoro, K
Suzuki, E
机构：
[1] Res Inst Innovat Technol Earth, Chem Res Grp, Kyoto 6190292, Japan
[2] Kyoto Sangyo Univ, Dept Phys, Kyoto 6038555, Japan
[3] Shinshu Univ, Dept Fine Mat Engn, Ueda, Nagano 3868567, Japan
来源：
AICHE JOURNAL | 2004年 / 50卷 / 03期
关键词：
PM removal; NOx removal; pulsed plasma; corona surface discharge; DBD reactor; kinetic model;
D O I：
10.1002/aic.10066
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
A pulsed corona surface discharge (PCSD) system was established for particulate matter (PM) and NO, removals from a diesel engine. The PCSD was carried out with a dielectric barrier discharge (DBD) reactor and a pulse power supply at atmospheric pressure and room temperature. The DBD reactor consisted mainly of an alumina (Al2O3) tube and a stainless steel rod (cathode) inserted in the alumina tube, and an aluminum coil (anode) wound on the outside surface of the Al2O3 tube. Pulse voltage was applied to the outside Al coil and stainless steel rod. PM was removed at a rate of 89% at maximum with 40% NOx removal. Relations of pulse voltage and frequency to PM and NOx removals were investigated. PM was oxidized by NO2 and other kinds of active oxygen species, such as O and O-3 from plasma discharges. A surface adsorption/desorption and PM oxidation model of PM removal was established. The kinetic equations and their constants were given. (C) 2004 American Institute of Chemical Engineers.
引用
收藏
页码：715 / 721
页数：7
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