Composite metal membrane
First Claim
1. A process for the recovery of hydrogen from a gaseous mixture comprising:
- contacting a hydrogen-containing gaseous mixture with a first side of a nonporous composite metal membrane including a first metal layer selected from the group consisting of Group IVB metals and Group VB metals, said first metal layer sandwiched between two layers of an oriented metal selected from the group consisting of palladium, platinum and alloys thereof; and
,separating hydrogen from a second side of said nonporous composite metal membrane.
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Accused Products
Abstract
A composite metal membrane including a first metal layer of Group IVB met or Group VB metals, the first metal layer sandwiched between two layers of an oriented metal of palladium, platinum or alloys thereof is provided together with a process for the recovery of hydrogen from a gaseous mixture including contacting a hydrogen-containing gaseous mixture with a first side of a nonporous composite metal membrane including a first metal of Group IVB metals or Group VB metals, the first metal layer sandwiched between two layers of an oriented metal of palladium, platinum or alloys thereof, and, separating hydrogen from a second side of the nonporous composite metal membrane.
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Citations
14 Claims
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1. A process for the recovery of hydrogen from a gaseous mixture comprising:
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contacting a hydrogen-containing gaseous mixture with a first side of a nonporous composite metal membrane including a first metal layer selected from the group consisting of Group IVB metals and Group VB metals, said first metal layer sandwiched between two layers of an oriented metal selected from the group consisting of palladium, platinum and alloys thereof; and
,separating hydrogen from a second side of said nonporous composite metal membrane. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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- 8. A composite metal membrane comprising a first metal layer selected from the group consisting of Group IVB metals and Group VB metals, said first metal layer sandwiched between two layers of an oriented metal selected from the group consisting of palladium, platinum and alloys thereof.
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13. A process of forming a composite metal membrane comprising
ion milling an oriented metal film selected from the group consisting of Group IVB metals and Group VB metals to remove surface oxides and surface imperfections from the oriented metal film; - and,
depositing layers of an oriented metal selected from the group consisting of palladium, platinum and alloys thereof upon the ion milled surfaces of said Group IVB or Group VB metal film. - View Dependent Claims (14)
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Specification