Performance of 6FDA–6FpDA polyimide for propylene/propane separations

Handle URI:
http://hdl.handle.net/10754/599163
Title:
Performance of 6FDA–6FpDA polyimide for propylene/propane separations
Authors:
Das, Mita; Koros, William J.
Abstract:
This work addresses the challenges faced by previous researchers with 6FDA-6FpDA polyimide for propylene/propane separations due to plasticization. A study of film annealing temperature is reported to optimize plasticization suppression in elevated temperature permeation on properly annealed dense films made with high molecular weight polymer. A detailed analysis of pure and mixed gas results using different permeability models is shown in this work. The annealing effects in terms of plasticization suppression and permeability and selectivity changes are discussed in detail. According to our best knowledge, this is for the first time plasticization suppression for propylene/propane has been reported with any polyimide dense film membrane. Results of pure gas sorption experiments using a pressure decay method with un-annealed and annealed films are discussed and used to analyze the permeation data using the dual-mode model. Mixed gas permeation results also are explained with dual mode and bulk flow transport models. © 2010 Elsevier B.V.
Citation:
Das M, Koros WJ (2010) Performance of 6FDA–6FpDA polyimide for propylene/propane separations. Journal of Membrane Science 365: 399–408. Available: http://dx.doi.org/10.1016/j.memsci.2010.09.029.
Publisher:
Elsevier BV
Journal:
Journal of Membrane Science
KAUST Grant Number:
KUS-I1-011-21
Issue Date:
Dec-2010
DOI:
10.1016/j.memsci.2010.09.029
Type:
Article
ISSN:
0376-7388
Sponsors:
The authors acknowledge the financial support of Roberto C. the Goizueta Foundation, the Georgia Research Alliance (Atlanta, GA), UOP (IL) and award no. KUS-I1-011-21 made by King Abdullah University of Science and Technology (KAUST) for this research.
Appears in Collections:
Publications Acknowledging KAUST Support

Full metadata record

DC FieldValue Language
dc.contributor.authorDas, Mitaen
dc.contributor.authorKoros, William J.en
dc.date.accessioned2016-02-25T13:54:04Zen
dc.date.available2016-02-25T13:54:04Zen
dc.date.issued2010-12en
dc.identifier.citationDas M, Koros WJ (2010) Performance of 6FDA–6FpDA polyimide for propylene/propane separations. Journal of Membrane Science 365: 399–408. Available: http://dx.doi.org/10.1016/j.memsci.2010.09.029.en
dc.identifier.issn0376-7388en
dc.identifier.doi10.1016/j.memsci.2010.09.029en
dc.identifier.urihttp://hdl.handle.net/10754/599163en
dc.description.abstractThis work addresses the challenges faced by previous researchers with 6FDA-6FpDA polyimide for propylene/propane separations due to plasticization. A study of film annealing temperature is reported to optimize plasticization suppression in elevated temperature permeation on properly annealed dense films made with high molecular weight polymer. A detailed analysis of pure and mixed gas results using different permeability models is shown in this work. The annealing effects in terms of plasticization suppression and permeability and selectivity changes are discussed in detail. According to our best knowledge, this is for the first time plasticization suppression for propylene/propane has been reported with any polyimide dense film membrane. Results of pure gas sorption experiments using a pressure decay method with un-annealed and annealed films are discussed and used to analyze the permeation data using the dual-mode model. Mixed gas permeation results also are explained with dual mode and bulk flow transport models. © 2010 Elsevier B.V.en
dc.description.sponsorshipThe authors acknowledge the financial support of Roberto C. the Goizueta Foundation, the Georgia Research Alliance (Atlanta, GA), UOP (IL) and award no. KUS-I1-011-21 made by King Abdullah University of Science and Technology (KAUST) for this research.en
dc.publisherElsevier BVen
dc.subjectBulk flow modelen
dc.subjectOlefin-paraffin separationsen
dc.subjectPlasticization suppressionen
dc.subjectPolyimideen
dc.titlePerformance of 6FDA–6FpDA polyimide for propylene/propane separationsen
dc.typeArticleen
dc.identifier.journalJournal of Membrane Scienceen
dc.contributor.institutionGeorgia Institute of Technology, Atlanta, United Statesen
kaust.grant.numberKUS-I1-011-21en
All Items in KAUST are protected by copyright, with all rights reserved, unless otherwise indicated.