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US 7,067,102 B1Granted
Method and apparatus for producing ozone
AssigneePotchefstroom University for Christian Higher Education
InventorBarend Visser
Life of this patent
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Abstract
A method of producing ozone comprises the steps of generating intermittent bursts of corona discharge in an electrode region 20.2, and passing oxygen-containing fluid through the region, thereby to cause ionization of the oxygen. The electrode is energized by a train of voltage pulses. Each pulse has a rise time of better than 2 kV/100 ns.
Claims15
A method of producing ozone comprising the steps of:
- passing a gas comprising oxygen through an electrode region;
- generating intermittent busts of corona discharge in the electrode region by energizing an electrode in the region with intermittent voltage pulses sufficient to cause an electric field in the electrode region to change at a rate faster than 10 kV/mm/10 ns.
Apparatus for producing ozone comprising:
- a housing defining a passage for a fluid comprising oxygen;
- first and second electrodes disposed adjacent the passage;
- and
- a voltage pulse generating circuit for generating a switched voltage which is applied to the electrodes to energize the electrodes;
- wherein the voltage pulse generating circuit comprises a field effect transistor (FET) connected to an output circuit which is connected to the electrodes and a switch circuit for the FET, the switch circuit comprising a charge storage device and a switching device, the switching device switch circuit being connected to a gate of the FET.
2 more elements
Dependencies are inferred from the claim text.