Porous Hollow Fiber Supported Dense Membrane For Hydrogen Production, Separation, Or Purification
AssigneeL'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude
InventorsPascal Tessier, Edgar S. Sanders, JR., Pascal J. Tromeur
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Abstract
A dense hydrogen-permeable layer, such as palladium or palladium alloy, is deposited on a porous hollow fiber. A porous hollow fiber is defined as having an inner diameter of approximately 30 microns to approximately 1500 microns and an outer diameter of approximately 100 microns to approximately 2000 microns. This allows an order-of-magnitude increase in the surface per volume ratio in a hydrogen separation or purification module, or a membrane reformer or reactor.
Claims14
A hollow fiber membrane comprising a porous support having an inner diameter of approximately 30 microns to approximately 1500 microns, an outer diameter of approximately 100 microns to approximately 2000 microns, and a hydrogen selective dense layer coated on the outer diameter.
A purification module comprising:
- A casing through which are located a feed gas port, a non-permeate outlet port, and a permeate outlet port;
- and
- a hollow fiber membrane disposed within the casing and comprising a porous support having an inner diameter of approximately 30 microns to approximately 1500 microns, an outer diameter of approximately 100 microns to approximately 2000 microns, and a hydrogen selective dense layer coated on the outer diameter.
Dependencies are inferred from the claim text.