MATHEMATICAL AND EXPERIMENTAL-ANALYSIS OF AIR SEPARATION BY HOLLOW-FIBER MEMBRANES

Approximate solutions for gas separation by hollow fiber membranes hav e been developed by several investigators. However, there are few repo rts of experimental verification of the models for high stage cut sepa rations. In this work, an approximate mathematical model was developed and was experimentally verified for high stage cut air separation. Bo th countercurrent and cocurrent now patterns were used. In addition, t he applicability of feed-inside mode for low stage cut air separation by hollow fiber membrane was examined. It was found that feed-inside m ods was more advantageous than feed-outside mode when used for the gen eration of oxygen-enriched air.