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Optimization of Membrane Separation System for Carbon Dioxide Recovery from Combustion Gases  

Han, Myungwan (Department of Chemical Engineering, Chungnam National University)
Kim, Miyoung (Department of Chemical Engineering, Chungnam National University)
Kim, Beom-Sik (Chemical Process and Engineering Center, KRICT)
Publication Information
Korean Chemical Engineering Research / v.43, no.2, 2005 , pp. 222-229 More about this Journal
Abstract
Five stage enriching membrane system for separating combustion gas (air 90%, $CO_2$ 10%) was proposed and simulated by using Aspen plus and Excel. The system recovers 90% $CO_2$ of the combustion gas and the purity of $CO_2$ recovered was more than 99%. Optimization yields a reduction in membrane area as well as operating and capital cost. Retentate concentration and permeate pressure of each stage were chosen as optimization variables. By analyzing the optimization results, we derived several design guide lines for the enriching membrane system.
Keywords
Optimization; Membrane; Combustion Gas; Separation System; Multi-Stage Enricher;
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