GAS SEPARATION BY HIGH-FLUX, ASYMMETRIC HOLLOW-FIBER MEMBRANE

被引:155
作者
PAN, CY
机构
[1] Alberta Research Council, Edmonton,, Alberta, Can, Alberta Research Council, Edmonton, Alberta, Can
关键词
HYDROGEN - Recovery - MATHEMATICAL MODELS - MEMBRANES - SYNTHETIC FIBERS - Applications;
D O I
10.1002/aic.690321212
中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
A mathematical model of multicomponent permeation systems with high-flux, asymmetric hollow-fiber membranes is presented. The model takes into account the permeate pressure variation inside the fiber. In the special case of negligible permeate pressure drop, the model yields a simple analytical solution for membrane area calculation that eliminates the numerical integration step required in existing methods. Laboratory multicomponent permeation experiments have verified the mathematical model and have demonstrated the technical feasibility of using the high-flux asymmetric cellulose acetate hollow fiber for H//2, CO//2, and H//2S separation. For the separation of high-concentration CO//2 or H//2S, the test data show that the permeabilities of the individual components in mixed gas permeation are significantly different from those of pure gases.
引用
收藏
页码:2020 / 2027
页数:8
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