Hollow fiber adsorbents for CO2 capture: Kinetic sorption performance

Handle URI:
http://hdl.handle.net/10754/598512
Title:
Hollow fiber adsorbents for CO2 capture: Kinetic sorption performance
Authors:
Lively, Ryan P.; Leta, Daniel P.; DeRites, Bruce A.; Chance, Ronald R.; Koros, William J.
Abstract:
We describe a CO 2 capture platform based on hollow polymeric fibers with sorbent particles embedded in the porous fiber wall for post-combustion CO 2 capture. These fibers are intended for use in a rapid temperature swing adsorption (RTSA) process. The RTSA system utilizes the hollow fiber morphology by flowing cooling water on the bore-side of the fibers during sorption to prevent temperature rise associated with the sorption enthalpy. Steam or hot water is flowed through the bores during desorption to desorb CO 2 rapidly. To minimize material transfer between the bore and the fiber wall, a dense Neoprene ® lumen layer is cast on the bore-side of the fiber wall. In this paper, the key sorption step and associated kinetic resistances for the uncooled fibers are examined and evaluated for this portion of the RTSA process. Chopped fibers in a packed bed, as well as fibers assembled into a parallel flow module, have been tested in a simulated flue gas stream. Kinetic limitations in the hollow fiber modules are largely overcome by increasing the superficial gas velocity and the fiber packing in the module-indicating that film diffusion is the controlling mass transfer limitation in the fiber system. The un-cooled fiber modules lose apparent capacity as superficial velocities are increased, likely indicating non-isothermal operation, whereas the actively-cooled fibers in the packed bed maintain apparent capacity at all flowrates studied. © 2011 Elsevier B.V.
Citation:
Lively RP, Leta DP, DeRites BA, Chance RR, Koros WJ (2011) Hollow fiber adsorbents for CO2 capture: Kinetic sorption performance. Chemical Engineering Journal 171: 801–810. Available: http://dx.doi.org/10.1016/j.cej.2011.01.004.
Publisher:
Elsevier BV
Journal:
Chemical Engineering Journal
Issue Date:
Jul-2011
DOI:
10.1016/j.cej.2011.01.004
Type:
Article
ISSN:
1385-8947
Sponsors:
The authors would like to thank ExxonMobil for funding this research. Dr. William Koros would like to thank King Abdullah University of Science and Technology for supporting his time.
Appears in Collections:
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Full metadata record

DC FieldValue Language
dc.contributor.authorLively, Ryan P.en
dc.contributor.authorLeta, Daniel P.en
dc.contributor.authorDeRites, Bruce A.en
dc.contributor.authorChance, Ronald R.en
dc.contributor.authorKoros, William J.en
dc.date.accessioned2016-02-25T13:31:19Zen
dc.date.available2016-02-25T13:31:19Zen
dc.date.issued2011-07en
dc.identifier.citationLively RP, Leta DP, DeRites BA, Chance RR, Koros WJ (2011) Hollow fiber adsorbents for CO2 capture: Kinetic sorption performance. Chemical Engineering Journal 171: 801–810. Available: http://dx.doi.org/10.1016/j.cej.2011.01.004.en
dc.identifier.issn1385-8947en
dc.identifier.doi10.1016/j.cej.2011.01.004en
dc.identifier.urihttp://hdl.handle.net/10754/598512en
dc.description.abstractWe describe a CO 2 capture platform based on hollow polymeric fibers with sorbent particles embedded in the porous fiber wall for post-combustion CO 2 capture. These fibers are intended for use in a rapid temperature swing adsorption (RTSA) process. The RTSA system utilizes the hollow fiber morphology by flowing cooling water on the bore-side of the fibers during sorption to prevent temperature rise associated with the sorption enthalpy. Steam or hot water is flowed through the bores during desorption to desorb CO 2 rapidly. To minimize material transfer between the bore and the fiber wall, a dense Neoprene ® lumen layer is cast on the bore-side of the fiber wall. In this paper, the key sorption step and associated kinetic resistances for the uncooled fibers are examined and evaluated for this portion of the RTSA process. Chopped fibers in a packed bed, as well as fibers assembled into a parallel flow module, have been tested in a simulated flue gas stream. Kinetic limitations in the hollow fiber modules are largely overcome by increasing the superficial gas velocity and the fiber packing in the module-indicating that film diffusion is the controlling mass transfer limitation in the fiber system. The un-cooled fiber modules lose apparent capacity as superficial velocities are increased, likely indicating non-isothermal operation, whereas the actively-cooled fibers in the packed bed maintain apparent capacity at all flowrates studied. © 2011 Elsevier B.V.en
dc.description.sponsorshipThe authors would like to thank ExxonMobil for funding this research. Dr. William Koros would like to thank King Abdullah University of Science and Technology for supporting his time.en
dc.publisherElsevier BVen
dc.subjectAdsorptionen
dc.subjectFiber sorbentsen
dc.subjectFiber spinningen
dc.subjectLumen layeren
dc.subjectPost-combustion CO 2 captureen
dc.titleHollow fiber adsorbents for CO2 capture: Kinetic sorption performanceen
dc.typeArticleen
dc.identifier.journalChemical Engineering Journalen
dc.contributor.institutionGeorgia Institute of Technology, Atlanta, United Statesen
dc.contributor.institutionExxonMobil, Irving, United Statesen
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