Title :
Pulsed power production of ozone in O2/N2 in a coaxial reactor without dielectric layer
Author :
Samaranayake, W.J.M. ; Miyahara, Y. ; Namihira, T. ; Katsuki, S. ; Hackam, Reuben ; Akiyama, H.
Author_Institution :
Dept. of Electr. & Comput. Eng., Kumamoto Univ., Japan
fDate :
10/1/2001 12:00:00 AM
Abstract :
Very short duration pulsed streamer discharges have been used to produce ozone in a gas mixture of nitrogen and oxygen at atmospheric pressure. The ratio of nitrogen to oxygen in the mixture was varied in the range from 2.5/0.5 to 0.5/2.5, while maintaining a total flow rate of 3 l/min. The production of ozone was found to be higher for a specific mixture ratio of N2/O2 than that in oxygen or in dry air. The production of ozone in O2 was higher than that in dry air. The production yield of ozone (g/kWh) increased with decreasing nitrogen in the O2/N2 mixture. It has been found that the peak of the streamer discharge current decreased with time after application of the pulsed power. This decrease in the current corresponded with the increase in the ozone production and is attributed to the loss of electrons in the discharge current due to their attachment to ozone to form negative ions
Keywords :
discharges (electric); ozone; plasma chemistry; pulsed power technology; O2-N2; O3; coaxial reactor; nitrogen/oxygen gas mixture; nonthermal plasma discharge; ozone production; pulsed power technology; pulsed streamer discharge; yield; Chemical processes; Coaxial components; Dielectrics; Inductors; Nitrogen; Plasma applications; Plasma chemistry; Plasma temperature; Production; Wastewater treatment;
Journal_Title :
Dielectrics and Electrical Insulation, IEEE Transactions on
