EP0362898A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Apparatus and method for separating gases
Assignee: Yeda Research and Development Co Ltd
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Filing: 1989-10-09
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Granted: —
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Expires: 2009-10-09
Abstract
Abstract The invention relates to a new method for the separation of gaseous paramagnetic species from diamagnetic or weakly paramagnetic gaseous species by contacting the mixture of such species with a high Tc superconductive material in permeable form, so that one of the species is enriched respective of the other one by permeation through such porous barrier. There is further provided a system for carrying out such an enrichment process.
Inventors
- 👤 Shymon Reich
- 👤 Israel Cabasso
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-27 07:19
CPC Classifications
B; B01; B01D; B01D71/00; B01D71/02; B01D71/024; B01D71/0271; B01D53/00; B01D53/22; B01D53/228; Y; Y10; Y10S; Y10S505/00; Y10S505/70; Y10S505/701
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
43 words
A system for the separation of strongly paramagnetic molecules, ions, or radicals from diamagnetic or weakly paramagnetic molecules, ions or radicals comprising a permeable high Tc superconductor in gas-permeable form, and means for passing the gaseous mixture or part thereof through such superconductor.
Claim 2
Independent Claim
43 words
A system for the separation of strongly paramagnetic molecules, ions, or radicals from diamagnetic or weakly paramagnetic molecules, ions or radicals comprising a permeable high Tc superconductor in gas-permeable form, and means for passing the gaseous mixture or part thereof through such superconductor.
Claim 3
Dependent Claim
18 words
A system according to claim 1 or 2, wherein the high Tc superconductor is of the perovskite type.
Claim 4
Dependent Claim
47 words
A system according to claim 1, wherein the superconductor is a ceramic material in the form of a pellet, a membrane, a hollow fiber, a layer supported by a membrane or a ceramic powder of the µm size range, a superconducting powder embedded in a polymer membrane.
Claim 5
Independent Claim
67 words
A system according to any one of claims 1 to 3, where the superconductor is selected from copper oxide type materials such as : Tl₂Ba₂CuO₆ Tc = 80 K Bi₂Cu₁Sr₂Cu₂O 8+δ Tc = 85 K YBa₂Cu₃O 7-δ Tc = 92 K Tl₂Ca₁Ba₂Cu₂O₈ Tc = 105 K Tl₂Ca₂Ba₂Cu₃O₁₀ Tc = 125 K Bi 1.8 Pb 0.2 Ca₂Sr₂Cu₃O x , Tc = 111 (x = 3 to approx. 15)
Claim 6
Independent Claim
60 words
A system according to any one of claims 1 to 4, wherein a stream of air is contacted with a surface of a superconductive material, means are provided for collecting separately the gaseous species permeating through such medium and for collecting the gaseous species reflected from such surface, means being provided for the cooling of the superconductor to below Tc.
Claim 7
Independent Claim
55 words
A method for the separation of gaseous consists of paramagnetic molecules, ions or radicals from diamagnetic or weakly paramagnetic molecules which entails contacting such a mixture with a high Tc superconductive permeable material in a manner such that an enrichment of one of said molecules, ions or radicals occurs by permeation through said permeable material.
Claim 8
Independent Claim
55 words
A method for the separation of gaseous consists of paramagnetic molecules, ions or radicals from diamagnetic or weakly paramagnetic molecules which entails contacting such a mixture with a high Tc superconductive permeable material in a manner such that an enrichment of one of said molecules, ions or radicals occurs by permeation through said permeable material.
Claim 9
Dependent Claim
32 words
The method of claim 6, wherein said superconductor is a porous ceramic in pellet or powder form, a hollow fiber, or a ceramic film or powder supported by a suitable permeable support.
Claim 10
Dependent Claim
61 words
The method of claim 6 or 7, wherein said material is ceramic selected from the copper oxide family as the materials listed below Tl₂Ba₂CuO₆ Tc = 80 K Bi₂Cu₁Sr₂Cu₂O 8+x Tc = 85 K YBa₂Cu₃O 7-x Tc = 92 K TL₂Ca₁Ba₂Cu₂O₈ Tc = 105 K Tl₂Ca₂Ba₂Cu₃O₁₀ Tc = 125 K Bi 1.8 Pb 0.2 Ca₂Sr₂Cu₃O x , Tc = 111 K
Claim 11
Independent Claim
18 words
The method of any one of claims 6 to 8, wherein said gaseous material separated is oxygen/nitrogen mixture
Claim 12
Independent Claim
46 words
A method according to any one of claims 6 to 9, where the superconductive semi-permeable material is exposed to periodical cycles below Tc and near/or above Tc perferentially permeating in the former the diamagnetic molecules and realeasing enriched pulse of the paramagentic component in the latter.
Claim 13
Independent Claim
37 words
A method according to any one of claims 6 to 10 where the superconductor semi-permeable material is exposed periodically to external magentic field large enough to quench the selectivity releasing thus a pulse enriched with paramagnetic molecules.
Claim 14
Dependent Claim
17 words
Method according to any one of claims 8 to 11, where O₂/N₂ or air mixtures are used.
References Cited (Backward Citations)
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