Dead end membrane gas separation process
AssigneeAir Liquide Advanced Technologies U.S. LLC
InventorsYong Ding, Benjamin Bikson
Life of this patent
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Abstract
A feed fluid mixture including at least one condensable component and at least one non-condensable component is separated into a gaseous permeate and an at least partially liquid retentate with a gas separation membrane through simultaneous condensation of at least one of said at least one condensable component on a retentate side of the membrane and permeation of at least one of said at least one non-condensable component through the membrane.
Claims39
A method of separating components of fluid mixtures to yield a product permeate gas and an at least partially liquid product retentate, comprising the steps of:
- feeding a fluid mixture feed stream containing at least one condensable gas component and at least one non-condensable gas component to a gas separation module containing at least one gas separation membrane;
- withdrawing a permeate gas product stream from said gas separation module enriched in said at least one non-condensable gas component in comparison to the feed fluid mixture stream, thereby leaving a retentate that deficient in said at least one condensable gas component in comparison to the feed, the retentate being either wholly or partially liquid, said permeate gas product stream being at a pressure of at least 3 atm lower than that of said feed fluid mixture, wherein the liquid portion of the retentate comprises said at least one condensable gas component in condensed form;
- and
- from the retentate in the gas separation module, withdrawing a liquid retentate product stream that is enriched in said at least one condensable component in comparison to the feed fluid mixture stream.
Dependencies are inferred from the claim text.