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Synthesis of ozone at atmospheric pressure by a quenched induction-coupled plasma torch
Journal article   Peer reviewed

Synthesis of ozone at atmospheric pressure by a quenched induction-coupled plasma torch

B C Stratton, R Knight, D R Mikkelsen, A Blutke and J Vavruska
Plasma chemistry and plasma processing, v 19(2), pp 191-216
01 Jun 1999
DOI: https://doi.org/10.1023/A:1021639608291

Abstract

Engineering Engineering, Chemical Physical Sciences Physics Physics, Applied Physics, Fluids & Plasmas Science & Technology Technology
The technical feasibility of using an induction-coupled plasma (ICP) torch to synthesize ozone at atmospheric pressure is explored. Ozone concentrations up to similar to 250 ppm were achieved using a thermal plasma reactor system based on an ICP torch operating at 2.5 MHz and similar to 11 kVA with an argon/oxygen mixture as the plasma-forming gas. The corresponding production rate and yield were similar to 20 g ozone/hr and similar to 2 g ozone/kWh, respectively. A gaseous oxygen quench formed ozone by rapid mixing of molecular oxygen with atomic oxygen produced by the torch. The ozone concentration in the reaction chamber was measured by Fourier Transform infrared (FTIR) spectroscopy over a wide range of experimental conditions and configurations. The geometry of the quench gas flow, the quench flow velocity, and the quench flow rate played important roles in determining the ozone concentration. The ozone concentration was sensitive to the torch RF power, but was insensitive to the torch gas flow rates. These observations are interpreted within the framework of a simple model of ozone synthesis.

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9 citations in Web of Science
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Collaboration types
Domestic collaboration
Web of Science research areas
Engineering, Chemical
Physics, Applied
Physics, Fluids & Plasmas
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