EP0194483A1
Expired / Lapsed
EP
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Method for gas separation
Assignee: Air Products and Chemicals Inc
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Filing: 1986-02-20
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Granted: —
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Expires: 2006-02-20
Abstract
Abstract A process for separating a gas from a mixture of gases comprises passing the gas mixture over a membrane, selectively permeable by the gas being separated, owing to one or more reversible reactions between a continuous layer of active molten material, immobilized in a thin, rigid, porous, inert support therefor, and the gas being separated.
Inventors
- 👤 Guido Peter Pez
- 👤 Richard Trotter Carlin
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-29 19:13
CPC Classifications
B; B01; B01D; B01D61/00; B01D61/38; B01D53/00; B01D53/02; B01D53/22; B01D53/228; B01D63/00; B01D63/02; B01D63/08; B01D63/10; B01D69/00; B01D69/10; B01D69/106; B01D69/107; B01D69/108; B01D2257/00; B01D2257/10; B01D2257/104; Y; Y02; Y02C; Y02C20/00; Y02C20/40
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
56 words
A process for separating a gas from at least one other gas in a mixture, comprising passing the gas mixture over a membrane selectively permeable to the gas being separated, which membrane comprises a thin, porous inert support in which an active material is immobilized within the pores and the active material is a molten salt.
Claim 2
Dependent Claim
56 words
A process for separating a gas from at least one other gas in a mixture, comprising passing the gas mixture over a membrane selectively permeable to the gas being separated, which membrane comprises a thin, porous inert support in which an active material is immobilized within the pores and the active material is a molten salt.
Claim 3
Dependent Claim
23 words
The process of Claim 1 wherein the molten salt is capable of undergoing one or more reversible reactions, with the gas being separated.
Claim 4
Dependent Claim
15 words
The process of Claim 2, wherein the reversible reaction is formation of a coordination complex.
Claim 5
Dependent Claim
14 words
The process of Claim 2, wherein the reversible reaction is an acid base reaction.
Claim 6
Dependent Claim
16 words
The process of Claim 2, wherein the reversible reaction is formation of an organic chemical compound.
Claim 7
Dependent Claim
13 words
The process of Claim 2 wherein the reversible reaction is an oxidation-reduction reaction.
Claim 8
Dependent Claim
25 words
The process of Claim 1, wherein the membrane is contained within a module of hollow fibers, a spiral winding or a series of flat plates.
Claim 9
Dependent Claim
31 words
The process of Claim 1, wherein the reversible oxidation-reduction reaction is nitrate-nitrite interconversion, oxygen is the gas being separated and the active material in the membrane is molten alkali metal nitrate.
Claim 10
Dependent Claim
27 words
The process of Claim 1, wherein the porous membrane containing the molten salt is supported on a macroporous support composed of ceramic, glass, metallic or polymeric material.
Claim 11
Dependent Claim
17 words
The process of Claim 1, including removing gas passing through the membrane by.a stream of sweep gas.
Claim 12
Dependent Claim
15 words
The process of Claim 1, including removing gas passing through the membrane using a compressor.
References Cited (Backward Citations)
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