Composite hydrogen separation element and module
First Claim
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1. A process for the separation of hydrogen from other gases comprising:
- (a) providing a feed gas comprising a mixture of gases containing hydrogen;
(b) providing a hydrogen separation element which, after fabrication, comprises a nonporous hydrogen-permeable coating metal layer supported by a rigid ceramic, carbon, or metal support matrix, and a porous intermediate layer between said coating metal layer and said support matrix, wherein, at a temperature of from about 200°
C. to about 1000°
C.,said intermediate layer does not chemically react with hydrogen or with said coating metal layer or with said support matrix to form a hydrogen-impermeable layer, and said support matrix does not react with hydrogen or with said intermeiate layer to substantially reduce the tensile strength of said support matrix,and wherein each of said coating metal layer, said support matrix and said inter mediate layer are planar and have at least one common axis hole therethrough in alignment along a common axis and having a gas-tight gasket about the periphery of said at least one hole of said coating metal layer;
(c) contacting said feed gas with said hydrogen separation element to form a hydrogen permeate stream; and
(d) collecting said hydrogen permeate stream.
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Abstract
There are disclosed improvements in multicomponent composite metal membranes useful for the separation of hydrogen, the improvements comprising the provision of at least one common-axis hole through all components of the composite membrane and the provision of a gas-tight seal around the periphery of the hole or holes through a coating metal layer of the membrane.
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Citations
43 Claims
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1. A process for the separation of hydrogen from other gases comprising:
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(a) providing a feed gas comprising a mixture of gases containing hydrogen; (b) providing a hydrogen separation element which, after fabrication, comprises a nonporous hydrogen-permeable coating metal layer supported by a rigid ceramic, carbon, or metal support matrix, and a porous intermediate layer between said coating metal layer and said support matrix, wherein, at a temperature of from about 200°
C. to about 1000°
C.,said intermediate layer does not chemically react with hydrogen or with said coating metal layer or with said support matrix to form a hydrogen-impermeable layer, and said support matrix does not react with hydrogen or with said intermeiate layer to substantially reduce the tensile strength of said support matrix, and wherein each of said coating metal layer, said support matrix and said inter mediate layer are planar and have at least one common axis hole therethrough in alignment along a common axis and having a gas-tight gasket about the periphery of said at least one hole of said coating metal layer; (c) contacting said feed gas with said hydrogen separation element to form a hydrogen permeate stream; and (d) collecting said hydrogen permeate stream. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A hydrogen separation module comprising a housing that has at least one feed inlet, at least one permeate outlet, at least one raffinate outlet and at least one hydrogen separation element which, after fabrication, comprises a nonporous hydrogen-permeable coating metal layer supported by a rigid ceramic, carbon, or metal support matrix, and a porous intermediate layer between said coating metal layer and said support matrix, wherein, at a temperature of from about 200°
- C. to about 1000°
C.,said intermediate layer does not chemically react with hydrogen or with said coating metal layer or with said support matrix to form a hydrogen-impermeable layer, and said support matrix does not react with hydrogen or with said intermediate layer to substantially reduce the tensile strength of said support matrix, and wherein each of said coating metal layer, said support matrix and said intermediate layer are planar and have at least one common axis hole therethrough in alignment along a common axis and having a gas-tight gasket about the periphery of said at least one hole of said coating metal layer. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42)
- C. to about 1000°
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43. A hydrogen separation element which, after fabrication, comprises a nonporous hydrogen-permeable coating metal layer supported by a rigid ceramic, carbon, or metal support matrix, and a porous intermediate layer between said coating metal layer and said support matrix, wherein, at a temperature of from about 200°
- C. to about 1000°
C.said intermediate layer does not chemically react with hydrogen or with said coating metal layer or with said support matrix to form a hydrogen-impermeable layer, and said support matrix does not react with hydrogen or with said intermediate layer to substantially reduce the tensile strength of said support matrix, and wherein each of said coating metal layer, said support matrix and said intermediate layer are planar and have at least one common axis hole therethrough in alignment along a common axis and having a gas-tight seal about the periphery of said at least one hole of said coating metal layer.
- C. to about 1000°
Specification