Plasticization-resistant hollow fiber membranes for CO2/CH4 separation based on a thermally crosslinkable polyimide

Handle URI:
http://hdl.handle.net/10754/599203
Title:
Plasticization-resistant hollow fiber membranes for CO2/CH4 separation based on a thermally crosslinkable polyimide
Authors:
Chen, Chien-Chiang; Qiu, Wulin; Miller, Stephen J.; Koros, William J.
Abstract:
Decarboxylation-induced thermal crosslinking has been demonstrated to be effective for stabilizing membranes against plasticization in dense films. This study extends this promising crosslinking approach from dense films to industrially relevant asymmetric hollow fiber membranes. Crosslinkable asymmetric hollow fiber membranes were spun from a carboxylic acid containing polyimide, 6FDA-DAM:DABA. Dope and spinning conditions were optimized to obtain fibers with a defect-free selective skin layer. It is found that slightly defective fibers suffered severe selectivity loss after thermal crosslinking, suggesting that defect-free property is essential to the performance of the resulting crosslinked hollow fiber membranes. The crosslinked fibers were tested for CO 2/CH 4 separation. The excellent plasticization resistance under high pressure feeds (with highest CO 2 partial pressure of 400psia) suggests that these robust membranes are promising for aggressive natural gas purification. © 2011 Elsevier B.V.
Citation:
Chen C-C, Qiu W, Miller SJ, Koros WJ (2011) Plasticization-resistant hollow fiber membranes for CO2/CH4 separation based on a thermally crosslinkable polyimide. Journal of Membrane Science 382: 212–221. Available: http://dx.doi.org/10.1016/j.memsci.2011.08.015.
Publisher:
Elsevier BV
Journal:
Journal of Membrane Science
KAUST Grant Number:
KUS-I1-011-21
Issue Date:
Oct-2011
DOI:
10.1016/j.memsci.2011.08.015
Type:
Article
ISSN:
0376-7388
Sponsors:
The authors acknowledge the financial support from Chevron Energy Technology Company, United States Department of Energy (Grant DE-FG03-95ER14538) and Award no. KUS-I1-011-21 made by King Abdullah University of Science and Technology (KAUST).
Appears in Collections:
Publications Acknowledging KAUST Support

Full metadata record

DC FieldValue Language
dc.contributor.authorChen, Chien-Chiangen
dc.contributor.authorQiu, Wulinen
dc.contributor.authorMiller, Stephen J.en
dc.contributor.authorKoros, William J.en
dc.date.accessioned2016-02-25T13:54:50Zen
dc.date.available2016-02-25T13:54:50Zen
dc.date.issued2011-10en
dc.identifier.citationChen C-C, Qiu W, Miller SJ, Koros WJ (2011) Plasticization-resistant hollow fiber membranes for CO2/CH4 separation based on a thermally crosslinkable polyimide. Journal of Membrane Science 382: 212–221. Available: http://dx.doi.org/10.1016/j.memsci.2011.08.015.en
dc.identifier.issn0376-7388en
dc.identifier.doi10.1016/j.memsci.2011.08.015en
dc.identifier.urihttp://hdl.handle.net/10754/599203en
dc.description.abstractDecarboxylation-induced thermal crosslinking has been demonstrated to be effective for stabilizing membranes against plasticization in dense films. This study extends this promising crosslinking approach from dense films to industrially relevant asymmetric hollow fiber membranes. Crosslinkable asymmetric hollow fiber membranes were spun from a carboxylic acid containing polyimide, 6FDA-DAM:DABA. Dope and spinning conditions were optimized to obtain fibers with a defect-free selective skin layer. It is found that slightly defective fibers suffered severe selectivity loss after thermal crosslinking, suggesting that defect-free property is essential to the performance of the resulting crosslinked hollow fiber membranes. The crosslinked fibers were tested for CO 2/CH 4 separation. The excellent plasticization resistance under high pressure feeds (with highest CO 2 partial pressure of 400psia) suggests that these robust membranes are promising for aggressive natural gas purification. © 2011 Elsevier B.V.en
dc.description.sponsorshipThe authors acknowledge the financial support from Chevron Energy Technology Company, United States Department of Energy (Grant DE-FG03-95ER14538) and Award no. KUS-I1-011-21 made by King Abdullah University of Science and Technology (KAUST).en
dc.publisherElsevier BVen
dc.subjectAsymmetric hollow fiberen
dc.subjectCrosslinken
dc.subjectDefect-freeen
dc.subjectNatural gasen
dc.subjectPlasticizationen
dc.titlePlasticization-resistant hollow fiber membranes for CO2/CH4 separation based on a thermally crosslinkable polyimideen
dc.typeArticleen
dc.identifier.journalJournal of Membrane Scienceen
dc.contributor.institutionGeorgia Institute of Technology, Atlanta, United Statesen
dc.contributor.institutionChevron, San Ramon, United Statesen
kaust.grant.numberKUS-I1-011-21en
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