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dc.contributor.authorLively, Ryan P.
dc.contributor.authorDose, Michelle E.
dc.contributor.authorXu, Liren
dc.contributor.authorVaughn, Justin T.
dc.contributor.authorJohnson, J.R.
dc.contributor.authorThompson, Joshua A.
dc.contributor.authorZhang, Ke
dc.contributor.authorLydon, Megan E.
dc.contributor.authorLee, Jong-Suk
dc.contributor.authorLiu, Lu
dc.contributor.authorHu, Zushou
dc.contributor.authorKarvan, Oĝuz
dc.contributor.authorRealff, Matthew J.
dc.contributor.authorKoros, William J.
dc.date.accessioned2016-02-25T12:29:49Z
dc.date.available2016-02-25T12:29:49Z
dc.date.issued2012-12
dc.identifier.citationLively RP, Dose ME, Xu L, Vaughn JT, Johnson JR, et al. (2012) A high-flux polyimide hollow fiber membrane to minimize footprint and energy penalty for CO2 recovery from flue gas. Journal of Membrane Science 423-424: 302–313. Available: http://dx.doi.org/10.1016/j.memsci.2012.08.026.
dc.identifier.issn0376-7388
dc.identifier.doi10.1016/j.memsci.2012.08.026
dc.identifier.urihttp://hdl.handle.net/10754/597285
dc.description.abstractUsing a process-guided approach, a new 6FDA-based polyimide - 6FDA-DAM:DABA(4:1) - has been developed in the form of hollow fiber membranes for CO 2 recovery from post-combustion flue gas streams. Dense film studies on this polymer reveal a CO 2 permeability of 224 Barrers at 40°C at a CO 2 feed pressure of 10psia. The dense films exhibit an ideal CO 2/N 2 permselectivity of 20 at 40°C, which permits their use in a two-step counter-flow/sweep membrane process. Dry-jet, wet-quench, non-solvent-induced phase inversion spinning was used to create defect-free hollow fibers from 6FDA-DAM:DABA(4:1). Membranes with defect-free skin layers, approximately 415nm thick, were obtained with a pure CO 2 permeance of 520GPU at 30°C and an ideal CO 2/N 2 permselectivity of 24. Mixed gas permeation and wet gas permeation are presented for the fibers. The CO 2 permeance in the fibers was reduced by approximately a factor of 2 in feeds with 80% humidity. As a proof-of-concept path forward to increase CO 2 flux, we incorporated microporous ZIF-8 fillers into 6FDA-DAM:DABA(4:1) dense films. Our 6FDA-DAM:DABA(4:1)/ZIF-8 dense film composites (20wt% ZIF-8) had a CO 2 permeability of 550 Barrers and a CO 2/N 2 selectivity of 19 at 35°C. Good adhesion between the ZIF and the 6FDA-DAM:DABA(4:1) matrix was observed. CO 2 capture costs of $27/ton of CO 2 using the current, "non-optimized" membrane are estimated using a custom counterflow membrane model. Hollow fiber membrane modules were estimated to have order-of-magnitude reductions in system footprint relative to spiral-wound modules, thereby making them attractive in current space-constrained coal-fired power stations. © 2012 Elsevier B.V.
dc.description.sponsorshipW.J. Koros thanks Award no. KUS-I1-011-21 made by the King Abdullah University of Science and Technology (KAUST) for financial support.
dc.publisherElsevier BV
dc.subjectCO 2 capture
dc.subjectHollow fiber membranes
dc.subjectMixed matrix membranes
dc.subjectSystem footprint
dc.subjectZeolitic imidazolate frameworks
dc.titleA high-flux polyimide hollow fiber membrane to minimize footprint and energy penalty for CO2 recovery from flue gas
dc.typeArticle
dc.identifier.journalJournal of Membrane Science
dc.contributor.institutionAlgenol Biofuels, , United States
dc.contributor.institutionGeorgia Institute of Technology, Atlanta, United States
kaust.grant.numberKUS-I1-011-21


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