NDLI: Preparation of hollow fiber composite membrane for carbon dioxide/methane separation via orthogonal experimental design

Content Provider	Springer Nature Link
Author	Li, Hong Bin Shi, Wen Ying Li, Jin Chao Zhang, Yu Feng
Copyright Year	2014
Abstract	Coating active layer on a porous support membrane was an effective method to prepare composite membranes with both high permeability and selectivity for gas separation. However, most of the investigations are focused on the choice and optimization of novel active materials. In this paper, an orthogonal experimental method was used to optimize the structure of the polysulfone (PSF) support membrane. Polyvinylamine (PVAm) and polyvinyl alcohol (PVA) were blended and used as the active materials of hollow fiber composite membranes for the separation of CO$_{2}$/CH$_{4}$. The preparation parameters including additives content (A), polymer content (B), weight-average molecular weight of additives (C) and solvent concentration in bore fluid (D) were investigated. The results of statistical analysis indicated that the effects of these preparation parameters on the permeance and selectivity of CO$_{2}$/CH$_{4}$ both gradually weakened in the order of B, A, C and D. FESEM observation showed that PSF support membrane with the typical double finger-like pore structure could get a high separation factor and high CO$_{2}$ permeance, rather than a single finger-like pore structure on the outer skin. The optimization of preparation parameters was as follows: PSF:PEG-400:DMAC (wt%)=19:5:76 and 10 wt% DMAC in bore fluid. Under the optimal preparation conditions, the resultant composite membrane exhibited a more excellent permselectivity of CO$_{2}$/CH$_{4}$ than commercial Prism membrane under low pressure (≤0.4 MPa).
Starting Page	2553
Ending Page	2563
Page Count	11
File Format	PDF
ISSN	12299197
Journal	Fibers and Polymers
Volume Number	15
Issue Number	12
e-ISSN	18750052
Language	English
Publisher	The Korean Fiber Society
Publisher Date	2015-01-04
Publisher Place	Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Hollow fiber Polysulfone (PSF) Composite membrane CO$_{2}$ separation Orthogonal design Polymer Sciences
Content Type	Text
Resource Type	Article
Subject	Chemistry Chemical Engineering Polymers and Plastics

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