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Separation and Purification of Bio Gas by Hollow Fiber Gas Separation Membrane Module  

Koh, Hyung-Chul (School of Materials Science and Engineering, Enginnering Research Institute, Gyeongsang National University)
Ha, Seong-Yong (Airrane Co. Ltd.)
Woo, Seung-Moon (School of Materials Science and Engineering, Enginnering Research Institute, Gyeongsang National University)
Nam, Sang-Yong (School of Materials Science and Engineering, Enginnering Research Institute, Gyeongsang National University)
Lee, Byung-Seong (Airrane Co. Ltd.)
Lee, Chung-Seop (Airrane Co. Ltd.)
Choi, Whee-Moon (Environmental Engineering, School of Engineering, Ajou University)
Publication Information
Membrane Journal / v.21, no.2, 2011 , pp. 177-192 More about this Journal
Abstract
Hollow fiber membrane using CTA polymers were prepared by the phase separation method for the separation and purification of biogas and the hollow fiber gas separation membrane modules with the effective surface area of 0.17 $m^2$ were prepared. The pure gas permeation properties of membrane modules for methane, oxygen and carbon dioxide were measured. The permeance of $CO_2$ and $CH_4$were 0.46 GPU and 18.52 GPU, respectively, therefore, the high $CO_2$/$CH_4$ selectivity of 40.4 was obtained. The separation and purification test for 4 different simulated mixed gases were carried out after the pure gas test and the gas concentration and flux of the permeate at the various stage-cut were measured from the 1 stage, 2 stage, and 3 stage cascade of membrane modules. In the 1 stage test, the concentration of $CH_4$ increased as the increase of the stage-cut, while the $CH_4$ recovery efficiency ratio decreased. In the 2 stage test, the $CH_4$ recovery efficiency ratio increased compared to the 1 stage. The 3 stage test was employed to reduce the loss of $CH_4$ in biogas and the result showed less than 5% of $CH_4$ recovery loss.
Keywords
cellulose triacetate; hollow fiber; gas separation; biogas; methane; carbon dioxide;
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Times Cited By KSCI : 3  (Citation Analysis)
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