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Approximate solutions for gas separation by hollow fiber membranes have been developedby several investigators.However,there are few reports of experimental verification of the models forhigh stage cut separations.In this work,an approximate mathematical model was developed and wasexperimentally verified for high stage cut air separation.Both countercurrent and cocurrent now pat-terns were used.In addition,the applicability of feed-inside mode for low stage cut air separation byhollow fiber membrane was examined.It was found that feed-inside mods was more advantageousthan feed-outside mode when used for the generation of oxygen-enriched air.
Approximate solutions for gas separation by hollow fiber membranes have been developedby several investigators.However, there are few reports of experimental verification of the models forhigh stage cut separations. In this work, an approximate mathematical model was developed and wasexperimentally verified for high stage cut air separation.Both countercurrent and cocurrent now pat-terns were used. In addition, the applicability of feed-inside mode for low stage cut air separation byhollow fiber membrane was was observed. It was found that the feed-inside mods was more advantage-feed-outside mode when used for the generation of oxygen-enriched air.