DocumentCode
1121059
Title
NOx removal by a pipe with nozzle-plate electrode corona discharge system
Author
Ohkubo, Toshikazu ; Kanazawa, Seiji ; Nomoto, Yukiharu ; Chang, Jen-Shih ; Adachi, Tokayoshi
Author_Institution
Fac. of Eng., Oita Univ., Japan
Volume
30
Issue
4
fYear
1994
Firstpage
856
Lastpage
861
Abstract
The effects of additional gas composition on the corona discharge characteristics in a pipe with nozzle electrode system and the NOx removal characteristics for flue gases are experimentally investigated. The additional gas consists of a mixture of Na+O2+NH3 and a small amount of Ar or CO2, and is introduced to the flue gas stream from the pipe electrode through the corona discharging zone at the tip of nozzles. The results show that corona discharge characteristics and modes are significantly influenced by the composition of the additional gas mixture. Both NOx reduction rate and energy yield of NOx removal increase with decreasing corona discharge input power. NO reduction rate and energy yield can be optimized by the type of the additional gas mixture and the flow rates
Keywords
air pollution detection and control; corona; electrodes; electrostatic precipitators; nitrogen compounds; nozzles; steam power stations; Ar; CO2; NO; NO reduction rate; NOx reduction rate; NOx removal; Na+O2+NH3; Na-O2-NH3; coal-fired power plants; electrostatic precipitators; energy yield; flow rates; flue gas stream; flue gases; gas mixture; nozzle-plate electrode corona discharge system; pipe; Aerosols; Argon; Chemicals; Corona; Electrodes; Electrostatic precipitators; Flue gases; Industry Applications Society; Plasma temperature; Power engineering and energy;
fLanguage
English
Journal_Title
Industry Applications, IEEE Transactions on
Publisher
ieee
ISSN
0093-9994
Type
jour
DOI
10.1109/28.297900
Filename
297900
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