Title :
Reduction of NOx from a combustion flue gas by a corona radical injection method
Author :
Chang, J.S. ; Looy, P.C. ; Pevler, J. ; Yoshioka, T. ; Nagai, K.
Author_Institution :
Dept. of Eng. Phys., McMaster Univ., Hamilton, Ont., Canada
Abstract :
An experimental investigation has been conducted concerning the reduction of NOx from combustion flue gases by means of corona radical injection methods. Corona discharge is generated by sharp hollow electrodes in the edge of the ceramic cylindrical tubes with grounded ring electrode on the surface. Ar-NH3 mixture gas is passed through the hollow electrode and is disassociated to form NHx radicals in the corona discharge zone located in the center of the flue gas flow ducts. It is shown that the reduction rate of NOx increases with increasing corona current, and nonmonotonically depends on the ammonia flow rate
Keywords :
air pollution detection and control; corona; electrodes; nitrogen compounds; thermal power stations; Ar-NH3 mixture gas; NHx; NHx radicals; NOx; ammonia flow rate; ceramic cylindrical tubes; combustion flue gases; corona discharge; corona radical injection methods; flue gas flow ducts; grounded ring electrode; sharp hollow electrodes; Aerosols; Combustion; Corona; Electrodes; Electrons; Flue gases; Global warming; Inductors; Plasmas; Power generation;
Conference_Titel :
Industry Applications Society Annual Meeting, 1993., Conference Record of the 1993 IEEE
Conference_Location :
Toronto, Ont.
Print_ISBN :
0-7803-1462-X
DOI :
10.1109/IAS.1993.299129
