EP0160964A2
Expired / Lapsed
EP
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Method for producing an ozone gas and apparatus for producing the same
Assignee: Niterra Co Ltd
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Filing: 1985-05-07
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Granted: —
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Expires: 2005-05-07
Abstract
Abstract A method for producing an ozone gas and an apparatus for producing the same are disclosed, in which a gas to be ozonized is fed to an ozonizer having a dielectric interposed between a pair of electrodes which are respectively connected to a high-frequency high-voltage power supply and thereby an ozone gas can be produced efficiently. The density of the gas to be ozonized which is fed to a silent discharge generating region in the ozonizer is made higher than the density of the same gas in the standard state. To that end, the temperature at the silent discharge generating region is lowered, and/or the pressure at the same region is increased.
Inventors
- 👤 Senichi Prof. Masuda
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-31 05:21
CPC Classifications
H; H01; H01T; H01T19/00; C; C01; C01B; C01B13/00; C01B13/10; C01B13/11; C01B2201/00; C01B2201/10; C01B2201/14; C01B2201/70; C01B2201/74
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
60 words
A method for producing an ozone gas, characterized in that ozonization is effected while a density of a gas to be ozonized in a silent discharge generating region of an electric field device in which a dielectric is disposed between a pair of electrodes, is kept higher than the density of said gas to be ozonized in the standard state.
Claim 2
Independent Claim
60 words
A method for producing an ozone gas, characterized in that ozonization is effected while a density of a gas to be ozonized in a silent discharge generating region of an electric field device in which a dielectric is disposed between a pair of electrodes, is kept higher than the density of said gas to be ozonized in the standard state.
Claim 3
Dependent Claim
41 words
A method for producing an ozone gas as claimed in claim 1, characterized in that the gas to be ozonized having the higher density is obtained by maintaining said gas at a lower temperature than the temperature in the standard state.
Claim 4
Dependent Claim
41 words
A method for producing an ozone gas as claimed in claim 1, characterized in that the gas to be ozonized having the higher density is obtained by maintaining said gas at a higher pressure than the pressure in the standard state.
Claim 5
Dependent Claim
49 words
A method für producing an ozone gas as claimed in claim 1, characterized in that the gas to be ozonized having the higher density is obtained by maintaining said gas at a lower temperature and at a higher pressure than the temperature and pressure, respectively, in the standard state.
Claim 6
Dependent Claim
22 words
A method for producing an ozone gas as claimed in claim 1, characterized in that the gas to be ozonized is air.
Claim 7
Dependent Claim
24 words
A method for producing an ozone gas as claimed in claim 1, characterized in that the gas to be ozonized is an oxygen gas.
Claim 8
Dependent Claim
63 words
A method for producing an ozone gas as claimed in claim 1, in which feeding of the gas to be ozonized having the higher density into the silent discharge generating region of the electric field device consists of the steps of directly dropping down liquid oxygen to the interior cf the inlet of said electric field device, and feeding an evaporated oxygen gas.
Claim 9
Dependent Claim
62 words
A method for producing an ozone gas as claimed in claim 1, characterized in that feeding of the gas to be ozonized having the higher density into the silent discharge generating region of the electric field device consists of the steps of directly dropping down liquid air to the interior of the inlet of said electric field device, and feeding evaporated air.
Claim 10
Dependent Claim
65 words
A method for producing an ozone gas as claimed in claim 1, characterized in that feeding of the gas to be ozonized having the higher density into the silent discharge generating region of the electric field device consists of the step of forcibly cooling the gas to be ozonized in the silent discharge generating region from the outside and/or inside of the electric field device.
Claim 11
Dependent Claim
32 words
A method for producing an ozone gas as claimed in claim 1, characterized in that one of the pair of electrodes consists of linear electrodes and the other is a two-dimensional electrode.
Claim 12
Dependent Claim
24 words
A method for producing an ozone gas as claimed in claim 1, characterized in that both of the pair of electrodes are two-dimensional electrodes.
Claim 13
Dependent Claim
53 words
An ozonizer comprising an electric field device in which a dielectric is disposed between a pair of electrodes, and density increasing means for increasing a density of a gas to be ozonized in a silent discharge generating region of said electric field device to a higher density than that in the standard state.
Claim 14
Dependent Claim
53 words
An ozonizer comprising an electric field device in which a dielectric is disposed between a pair of electrodes, and density increasing means for increasing a density of a gas to be ozonized in a silent discharge generating region of said electric field device to a higher density than that in the standard state.
Claim 15
Dependent Claim
24 words
An ozonizer as claimed in claim 12, characterized in that said density increasing means is a cooling device for the gas to be ozonized.
Claim 16
Dependent Claim
31 words
An ozonizer as claimed in claim 13, characterized in that said cooling device for the gas to be ozonized is provided on the outside and/or inside of the electric field device.
Claim 17
Dependent Claim
34 words
An ozonizer as claimed in claim 13, characterized in that said cooling device for the gas to be ozonized is provided on the outside of a feed pipe of the gas to be ozonized.
Claim 18
Dependent Claim
29 words
An ozonizer as claimed in claim 13, characterized in that said cooling device for the gas to be ozonized relies upon utilization of latent heat of a liquefied gas.
Claim 19
Dependent Claim
24 words
An ozonizer as claimed in claim 12, characterized in that said density increasing means in a pressurizing device for the gas to be ozonized.
Claim 20
Dependent Claim
38 words
An ozonizer as claimed in claim 12, characterized in that said density increasing means makes use of cooling by evaporation of liquid air, and low-temperature air produced by the evaporation is used as the gas to be ozonized.
Claim 21
Dependent Claim
35 words
An ozonizer as claimed in claim 12, characterized in that said density increasing means makes use of cooling by evaporation of liquid oxygen produced by the evaporation is used as the gas to be ozonized.
Claim 22
Dependent Claim
24 words
An ozonizer as claimed in claim 12, characterized in that said density increasing means consists of both a cooling device and a pressurizing device.
Claim 23
Dependent Claim
27 words
An ozonizer as claimed in claim 12, characterized in that one of the pair of electrodes consists of linear electrodes and the other is a two-dimensional electrode.
Claim 24
Dependent Claim
19 words
An ozonizer as claimed in claim 12, characterized in that both of the pair of electrodes are two-dimensional electrodes.
References Cited (Backward Citations)
No citation records indexed.
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