Energy Consumption Analysis and OH Radical Detection of NO Conversion Process From Flue Gas Using Pulsed Corona Discharge

Author

Lei Zhao ; Zhong-Yang Luo ; Jian-Ping Jiang ; Dong Zhou ; Xiang Gao ; Ke-Fa Cen

Author_Institution

State Key Lab. of Energy Utilization, Zhejiang Univ., Hangzhou, China

Volume

42

Issue

1

fYear

2014

fDate

Jan. 2014

Firstpage

105

Lastpage

113

Abstract

Pulsed corona discharge has been proved to be effective in the treatment of gas pollutions ejected from flue gas. In this paper, chemical characteristics of pulsed corona discharge plasma and its application of nitric oxide (NO) conversion process are investigated with different gas mixtures. The NO conversion efficiency increases with the increasing oxygen concentration and relative humidity, which can be achieved up to 98.3% when oxygen concentration is 21.3%, while the single pulse energy is only 0.29 J. Possible reaction pathways of the NO conversion process in the plasma generated by different gases are also proposed. In the pulse corona discharge, the NO conversion process is mainly governed by reactions with oxygen-derived radicals. OH radical is considered to be the most important radical in NO oxidation process in H₂O/N₂ mixture. However, it has a little influence on NO conversion in rich oxygen atmosphere.

Keywords

corona; energy consumption; flue gases; gas mixtures; nitrogen compounds; plasma chemistry; plasma diagnostics; NO; chemical characteristics; energy 0.29 J; energy consumption analysis; flue gas; gas mixtures; gas pollution treatment; nitric oxide conversion process; oxidation; oxygen concentration; oxygen-derived radicals; plasma generation; pulsed corona discharge plasma; radical detection; relative humidity; single pulse energy; spectroscopic method; water-nitrogen mixture; Corona; Discharges (electric); Electrodes; Energy consumption; Inductors; Plasmas; Water; Energy consumption; OH radical; nitric oxide (NO) conversion efficiency; single pulse energy;

fLanguage

English

Journal_Title

Plasma Science, IEEE Transactions on

Publisher

ieee

ISSN

0093-3813

Type

jour

DOI

10.1109/TPS.2013.2290131

Filename

6672031