Startseite Naturwissenschaften Characterization of Oxygen-Fed Ozonizer Based on Pulsed Streamer Discharge
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Characterization of Oxygen-Fed Ozonizer Based on Pulsed Streamer Discharge

  • Takao Namihira EMAIL logo , Douyan Wang , Takashi Sakugawa , Sunao Katsuki und Hidenori Akiyama
Veröffentlicht/Copyright: 8. Dezember 2016
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Abstract

Recently industrial applications of ozone have increased in widely different areas including oxidation, sterilization, deodorization, bleaching and others. Especially, a demand of movable ozonizer for treatment of diesel exhaust gas has been growing up. Generally, a generation of ozone has been attained using ultra violet irradiation, electrolysis and electrical discharges such as a dielectric barrier discharge, a surface discharge, a pulsed streamer discharge and a superimposed silent and surface discharge. In the present situation, a ozonizer based on a dielectric barrier discharge has been commonly utilized in the world. However, a ozonizer based on a dielectric barrier discharge has disadvantages as a movable ozonizer since a discharge electrode, having a breakable dielectric layer and a sensitive gap separation, does not have enough resistance to vibration stress. In this study, the characteristics of ozonizer based on a pulsed streamer discharge were measured using a magnetic pulse compressor (MPC), which has a maximum output voltage of 60 kV, a maximum pulse repetition rate of 500 pulses per second and a pulse duration of about 130 ns, and discharge reactors with coaxial geometry. For the reactor of pulsed streamer discharges, an anode and a cathode electrodes are made by metallic material and a gap separation between electrodes has a little influence on a discharge condition. Therefore, this type of ozonizer has a merit to apply mobile situation. As the results, the ozonizer based on the pulsed streamer discharges has the better production yield of 150 g/kWh in the concentration range of 10 to 20 g/m3 than dielectric barrier discharge ozonizers.

Received: 2007-2-27
Accepted: 2007-4-30
Published Online: 2016-12-8
Published in Print: 2007-7-1

© 2016 by Walter de Gruyter Berlin/Boston

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