Synthesis of Ozone at Atmospheric Pressure by a Quenched Induction-Coupled Plasma Torch

Technical Report · Thu Jan 01 04:00:00 EST 1998

DOI:https://doi.org/10.2172/4522· OSTI ID:4522

Blutke, A ^[1]; Stratton, B C; Mikkelsen, D R; Vavruska, J; Knight, R

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1. Princeton Plasma Physics Laboratory

The technical feasibility of using an induction-coupled plasma (ICP) torch to synthesize ozone at atmospheric pressure is explored. Ozone concentrations up to ~250 ppm were produced using a thermal plasma reactor system based on an ICP torch operating at 2.5 MHz and ~11 kVA with an argon/oxygen mixture as the plasma-forming gas. 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 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.

• Research Organization: Princeton Plasma Physics Laboratory (PPPL), Princeton, NJ
• Sponsoring Organization: USDOE Office of Energy Research (ER)
• DOE Contract Number: AC02-76CH03073
• OSTI ID: 4522
• Report Number(s): PPPL-3281; ON: DE00004522
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
Experimental Data
Feasibility Studies
Ozonization
Plasma