Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/90670
Title: Optimization of dual-layer hollow fiber technology for superior gas separation
Authors: Li, Y. 
Chung, T.S. 
Xiao, Y. 
Issue Date: 2009
Source: Li, Y.,Chung, T.S.,Xiao, Y. (2009). Optimization of dual-layer hollow fiber technology for superior gas separation. 8th World Congress of Chemical Engineering: Incorporating the 59th Canadian Chemical Engineering Conference and the 24th Interamerican Congress of Chemical Engineering : nopagegiven-. ScholarBank@NUS Repository.
Abstract: To simultaneously enhance O 2 and CO 2 gas permeance and O 2/N 2 and CO 2/CH 4 selectivity via decoupling, the effects of elongational and shear rates on dense-selective layer and optimizing spinning conditions were studied in dual-layer hollow fiber. The dual-layer polyethersulfone hollow fiber membranes exhibited an O 2/N 2 selectivity of 6.96 and an O 2 permeance of 4.79 GPU. The hollow fibers showed an impressive CO 2/CH 4 selectivily of 49.8 in the mixed gas system considering the intrinsic value of only 32 for polyethersulfone dense films. This gas separation performance demonstrated that the optimization of dual-layer spinning conditions with balanced elongational and shear rates is an effective approach to produce superior hollow fiber membranes for oxygen enrichment and natural gas separation. This is an abstract of a paper presented at the 8th World Congress of Chemical Engineering (Montreal, Quebec, Canada 8/23-27/2009).
Source Title: 8th World Congress of Chemical Engineering: Incorporating the 59th Canadian Chemical Engineering Conference and the 24th Interamerican Congress of Chemical Engineering
URI: http://scholarbank.nus.edu.sg/handle/10635/90670
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