An improved metal gas separation membrane for separating hydrogen from a gas steam includes a quantity of metal particles that are bonded together to form a porous body. The porous body may have a porosity that increases from a first surface to an opposite second surface and may additionally include
An improved metal gas separation membrane for separating hydrogen from a gas steam includes a quantity of metal particles that are bonded together to form a porous body. The porous body may have a porosity that increases from a first surface to an opposite second surface and may additionally include a coating of ceramic particles on the first surface. The metal gas separation membrane may include a coating of a dense precious metal applied thereto that is permeable by hydrogen via chemisorption-dissociation-diffusion. The porous body may include a catalytic enhancement. Also disclosed are three gas separation modules that employ the metal gas separation membrane disposed within a core of the gas separation module for separating hydrogen from a gas stream. The gas separation membranes are each supported on a first mounting member and a second mounting member. The gas separation modules may also include a catalytic enhancement.
대표청구항▼
1. A gas separation module for separating a permeation gas from a feed gas stream, the gas separation module comprising:at least a first gas separation membrane; a housing having a core and including a first mounting member and a second mounting member; the at least first gas separation membrane bei
1. A gas separation module for separating a permeation gas from a feed gas stream, the gas separation module comprising:at least a first gas separation membrane; a housing having a core and including a first mounting member and a second mounting member; the at least first gas separation membrane being supported by the first and second mounting members and being disposed substantially within the core of the housing; the at least first gas separation membrane including an elongated porous body of metal particles compacted and bonded together and a chemisorption-dissociation-diffusion coating, the porous body being formed with an elongated void, the metal particles including a quantity of at least one of metal fibers and metal powder; the porous body having a first surface and a second surface opposite one another, one of the first surface and the second surface being defined by the void of the porous body; the at least first gas separation membrane having an interior and an exterior, the interior being defined by the void of the porous body, the exterior being opposite the interior; the porosity of the porous body increasing from the first surface to the second surface; and the gas separation membrane being structured to receive the feed gas stream against one of the first and second surfaces and to permeate a quantity of the permeation gas out of the other of the first and second surfaces. 2. A gas separation module for separating a permeation gas from a feed gas stream, the gas separation module comprising:at least a first gas separation membrane; a housing having a core and including a first mounting member and a second mounting member; the at least first gas separation membrane being supported by the first and second mounting members and being disposed substantially within the core of the housing; the at least first gas separation membrane including an elongated porous body of metal particles compacted and bonded together, the porous body being formed with an elongated void, the metal particles including a quantity of at least one of metal fibers and metal powder; the porous body having a first surface and a second surface opposite one another, one of the first surface and the second surface being defined by the void of the porous body; the at least first gas separation membrane having an interior and an exterior, the interior being defined by the void of the porous body, the exterior being opposite the interior; the porosity of the porous body increasing from the first surface to the second surface; the gas separation membrane being structured to receive the feed gas stream against one of the first and second surfaces and to permeate a quantity of the permeation gas out of the other of the first and second surfaces; and in which the gas separation membrane is structured to receive the feed gas stream against the first surface and to permeate the quantity of the permeation gas out of the second surface, and in which the gas separation module includes a catalytic enhancement disposed to the exterior of the at least first gas separation membrane, the catalytic enhancement including a quantity of catalytic materials supported on a scaffold apparatus disposed to the exterior of the at least first gas separation membrane, and the scaffold apparatus being one of metal fibers and chemical vapor infiltration silicon carbide reticulated foam. 3. The gas separation module as set forth in claim 2, in which the housing includes a permeate gas outlet, and in which the at least first gas separation membrane has a first end and a second end, the first end being closed, and the second end being in fluid communication with the permeate gas outlet.4. The gas separation module as set forth in claim 3, in which the catalytic enhancement is disposed between the first and second mounting members, and in which the housing includes a feed gas inlet and a retentate gas outlet, the feed gas inlet being in flow communication with the retentate gas outlet through the catalytic enhancement.5. The gas separation module as set forth in claim 2, in which the at least first gas separation membrane includes chemisorption-dissociation-diffusion coating disposed on the first surface, the gas separation membrane being structured to receive the feed gas stream against the chemisorption-dissociation-diffusion coating and to permeate the quantity of the permeation gas out of the second surface.6. A gas separation module for separating a permeation gas from a feed gas stream, the gas separation module comprising:at least a first gas separation membrane; a housing having a core and including a first mounting member and a second mounting member; the at least first gas separation membrane being supported by the first and second mounting members and being disposed substantially within the core of the housing; the at least first gas separation membrane including an elongated porous body of metal particles compacted and bonded together, the porous body being formed with an elongated void, the metal particles including a quantity of at least one of metal fibers and metal powder; the porous body having a first surface and a second surface opposite one another, one of the first surface and the second surface being defined by the void of the porous body; the at least first gas separation membrane having an interior and an exterior, the interior being defined by the void of the porous body, the exterior being opposite the interior; the porosity of the porous body increasing from the first surface to the second surface; the gas separation membrane being structured to receive the feed gas stream against one of the first and second surfaces and to permeate a quantity of the permeation gas out of the other of the first and second surfaces; and in which the gas separation membrane is structured to receive the feed gas stream against the second surface and to permeate the quantity of the permeation gas out of the first surface, and in which the gas separation module includes a catalytic enhancement, the catalytic enhancement including catalytic material incorporated into the porous body. 7. The gas separation module as set forth in claim 6, in which the housing includes a feed gas inlet and a retentate gas outlet, the feed gas inlet being in flow communication with the retentate gas outlet through the catalytic enhancement.8. The gas separation module as set forth in claim 6, in which the housing includes a feed gas inlet and a retentate gas outlet, the at least first gas separation membrane having a first end and a second end, the feed gas inlet being in fluid communication with the retentate gas outlet through the first and second ends, the housing further including a permeate gas manifold and a permeate gas outlet, the permeate gas manifold being defined between the first and second mounting members, and the permeate gas outlet being in fluid communication with the exterior of the at least first gas separation membrane through the permeate gas manifold.9. The gas separation module as set forth in claim 8, in which the at least first gas separation membrane includes a chemisorption-dissociation-diffusion coating disposed on the first surface, the gas separation membrane being structured to receive the feed gas stream against the second surface and to permeate the quantity of the permeation gas out of the chemisorption-dissociation-diffusion coating.10. The gas separation module as set forth in claim 9, in which the at least first gas separation membrane includes a support member disposed against the chemisorption-dissociation-diffusion coating.11. A gas separation module for separating a permeation gas from a feed gas stream, the gas separation module comprising:a gas separation membrane having a generally elongated porous body of dense metal particles, the porous body having a first surface and a second surface and a void formed between the first and second surfaces; and a housing having a core and including a mounting member, the gas separation membrane being supported by the mounting member and disposed substantially within the core; and the spacing between certain metal particles being larger than the spacing between other metal particles. 12. The gas separation module as set forth in claim 11, wherein the gas separation membrane is structured to receive the feed gas stream against one of the first and second surfaces and to permeate a quantity of the permeation gas out of the other of the first and second surfaces.13. The gas separation module as set forth in claim 11, wherein the gas separation membrane has an interior and an exterior, the interior being defined by the void of the porous body, and the exterior being generally opposite the interior.14. The gas separation module as set forth in claim 11, wherein the density of the metal particles is achieved by compressing and bonding the metal particles.15. The gas separation module as set forth in claim 11, wherein the metal particles are selected from the group consisting of metal fibers and metal powders.16. The gas separation module as set forth in claim 11, wherein the porosity of the porous body increases from the first surface to the second surface.17. The gas separation module as set forth in claim 11, wherein the metal particles are configured in a variety of sizes.18. The gas separation module as set forth in claim 11, wherein the gas separation membrane has a hollow, generally cylindrical configuration.
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