Title :
DC corona for NOx oxidation
Author :
Yang, Chen-Lu ; Yamamoto, Toshiaki
Author_Institution :
Beltran Assoc. Inc., Brooklyn, NY, USA
Abstract :
A DC corona plasma reactor was evaluated for its ability of oxidizing nitric oxide (NO) by nonthermal plasma discharge. The plasma reactor completely oxidizes 140 ppm of NO to NO/sub 2/ in an air stream at a voltage of 9 kV. The NO/sub 2/ is further oxidized to nitrate at a higher voltage. For some cases, the NO/sub 2/ in effluents of the plasma reactor is removed quantitatively by a caustic sodium sulfite aqueous scrubbing. The outlet concentrations of both NO and NO/sub 2/ from the plasma-scrubber combination system (corona-induced chemical scrubber) are beyond the detection limit of a chemiluminescent NO/sub x/ analyzer.
Keywords :
air pollution control; corona; discharges (electric); electrostatic devices; nitrogen compounds; oxidation; plasma materials processing; 9 kV; DC corona plasma reactor; NO; NO/sub 2/; NO/sub x/ oxidation; air emissions control; air stream; caustic sodium sulfite aqueous scrubbing; corona-induced chemical scrubber; effluents; nonthermal plasma discharge; plasma-scrubber combination system; Absorption; Chemicals; Corona; Electrodes; Flue gases; Inductors; Nitrogen; Oxidation; Plasma applications; Plasma chemistry;
Conference_Titel :
Industry Applications Conference, 1998. Thirty-Third IAS Annual Meeting. The 1998 IEEE
Conference_Location :
St. Louis, MO, USA
Print_ISBN :
0-7803-4943-1
DOI :
10.1109/IAS.1998.729811
