Study of Geometry Structure on a Wire-Plate Pulsed Corona Discharge Reactor

• Published in: IEEE transactions on plasma science Vol. 40; no. 3; pp. 802 - 810
• Main Authors: Zhao, Lei, Luo, Zhong-Yang, Xuan, Jian-Yong, Jiang, Jian-Ping, Gao, Xiang, Cen, Ke-Fa
• Format: Journal Article
• Language: English
• Published: New York IEEE 01-03-2012; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Cathodes; Corona; Discharges; Energy transmission efficiency; Inductors; Nitric oxide; Oxidation; oxidation efficiency; Plasma; Plasmas; pulsed corona discharge; Reactors; streamer; Wire; Wires
• ISSN: 0093-3813; 1939-9375
• DOI: 10.1109/TPS.2011.2181538

The wire-plate pulsed corona discharge reactor has been regarded as the plasma reactor with highest efficiency for controlling pollutants such as NO and SO 2 in flue gas with high-voltage and short-duration positive pulsed corona discharge. A laboratory-scale pulsed corona discharge reactor with wire-plate electrode configuration is established for optimizing the geometry structure of the wire-plate plasma reactor. In this paper, three different methods are used to optimize the wire-to-wire distance and wire-to-plate distance of the plasma reactor. There are experiments with different conditions including various electrical parameters, streamer parameters, and NO oxidation efficiency. The same results are obtained from all the three experiments. The results indicate that short wire-to-plate distance should be adopted to increase the input energy of the plasma reactor but not too short to cause spark discharge in the reactor. Moreover, the wire-to-wire distance should be at least twice as large as wire-to-plate distance, to reduce the interferences between adjacent wire electrodes.