Pressure–vacuum swing permeation: A novel process mode for membrane separation of gases
Separation and Purification Technology（2014）
Abstract
•A novel unsteady-state permeation process for gas separation by membranes was proposed.•Cyclic pressure–vacuum swing for feed pressurization and permeate evacuation to enhance separation.•Enhanced transmembrane pressure difference and the feed to permeate pressure ratio.•Air separation for oxygen enrichment was investigated as a model application.
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Key words
Pressure–vacuum swing,Permeation,Gas separation,Oxygen enrichment
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