Oxidation of nitric oxide in a two-stage chemical scrubber using dc corona discharge.
The dc corona was studied as an alternative for NO oxidation in a two-stage chemical scrubber. The dc corona plasma reactor completely oxidized 150ppm of NO to NO2 in an air stream. The NO2 was further oxidized at a higher voltage. For some cases, the NO2 in the effluents of the plasma reactor was absorbed quantitatively by a caustic sodium sulfite aqueous solution in a 2l bubble column gas absorber. The outlet concentrations of both NO and NO2 from the plasma-scrubber combination system (corona-induced chemical scrubber) were below the detection limit of the chemiluminescent NOx analyzer.
Yang
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Beltran Associates, Inc., 1133 East 35th Street, Brooklyn, NY 11210, USA. yang1987@aol.com
Chen
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D000393:Air Pollutants / Q000737:chemistry; D000397:Air Pollution / Q000517:prevention & control*; D009569:Nitric Oxide / Q000737:chemistry*; D010084:Oxidation-Reduction; D012037:Refuse Disposal / Q000379:methods*; D055672:Static Electricity; D013447:Sulfites / Q000737:chemistry; D018505:Waste Management / Q000295:instrumentation*
D000393:Air Pollutants; D013447:Sulfites; D009569:Nitric Oxide; C025026:sodium sulfite