NO{sub 2} removal by magnetic field enhanced plasma reactor

Conference · Tue Dec 31 04:00:00 EST 1996

OSTI ID:419806

Ferreira, J L; Monteiro, K M.F.P.; Damasio, H J ^[1]; Kostov, K G ^[2]

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1. Univ. of Brasilia (Brazil). Dept. of Physics
2. Sofia Univ. (Bulgaria). Dept. of General Physics

Large quantities of carbon oxides (CO{sub x}), sulfur oxides (SO{sub x}), and nitride oxides (NO{sub x}) are the main cause for acid rains, photochemical smog and Greenhouse affect. The energetic free electron induced plasma process is one of the most effective methods of reducing SO{sub x}, NO{sub x} and CO{sub 2} from industrial flue gases. This paper describes the development of magnetic field enhanced plasma reactor for dissociation of atmosphere pollutant gases by corona discharge. The reactor consists of two coaxial, specially designed cylindrical electrodes. The inner electrode possesses many sharpened pyramids in order to initiate corona electric discharge. A dielectric barrier (2 mm thick Pyrex glass tube) is positioned between the coaxial electrodes. An a.c. barrier corona discharge at atmospheric pressure is generated by application of high voltage to the inner electrode while the outer electrode is grounded. The discharge current originated from the inner electrode sharp points flows in radial direction through the glass tube wall and terminates to the grounded outer electrode. Discharge by-products of gas mixture N{sub 2} and NO{sub 2} (0.3%) are measured by a mass spectrometer in order to investigate the effect of a surface multidipole magnetic fields on the corona discharge and on the pollutant gas reduction.

• OSTI ID: 419806
• Report Number(s): CONF-960634--
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
54 ENVIRONMENTAL SCIENCES
AIR POLLUTION CONTROL
CHEMICAL REACTORS
CORONA DISCHARGES
DISSOCIATION
FLUE GAS
INDUSTRIAL PLANTS
NITROUS OXIDE
POLLUTION CONTROL EQUIPMENT