Title:
Thermally crosslinked polyimide hollow fiber membranes for natural gas purification

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dc.contributor.advisor Koros, William J.
dc.contributor.author Chen, Chien-Chiang en_US
dc.contributor.committeeMember Fuller, Tom
dc.contributor.committeeMember Griffin, Anselm
dc.contributor.committeeMember Hess, Dennis
dc.contributor.committeeMember Stephen, Miller
dc.contributor.department Chemical Engineering en_US
dc.date.accessioned 2013-01-17T21:46:38Z
dc.date.available 2013-01-17T21:46:38Z
dc.date.issued 2011-10-05 en_US
dc.description.abstract Robust industrially relevant membranes for CO₂ removal from aggressive natural gas feed streams were developed and characterized. Asymmetric hollow fiber membranes with defect-free selective skin layers on an optimized porous support substructure were successfully spun and subsequently stabilized by covalent crosslinking within the economical membrane formation process. Thermal treatment conditions, which promote sufficient crosslinking without introducing defects or undesired substructure resistance, were identified. It was found that crosslinking improves membrane efficiency and plasticization resistance as well as mechanical strength of fibers. The capability to maintain attractive separation performance under realistic operating conditions and durability against deleterious impurities suggests that the crosslinked fibers have great potential for use in diverse aggressive applications, even beyond the CO₂/CH₄ example explored in this work. en_US
dc.description.degree PhD en_US
dc.identifier.uri http://hdl.handle.net/1853/45848
dc.publisher Georgia Institute of Technology en_US
dc.subject Membrane en_US
dc.subject Gas separation en_US
dc.subject Polyimide en_US
dc.subject Crosslinked polymer en_US
dc.subject Natural gas en_US
dc.subject Hollow fiber en_US
dc.subject.lcsh Gases Purification
dc.subject.lcsh Gases Separation
dc.subject.lcsh Separation (Technology)
dc.subject.lcsh Membranes (Technology)
dc.title Thermally crosslinked polyimide hollow fiber membranes for natural gas purification en_US
dc.type Text
dc.type.genre Dissertation
dspace.entity.type Publication
local.contributor.advisor Koros, William J.
local.contributor.corporatename School of Chemical and Biomolecular Engineering
local.contributor.corporatename College of Engineering
relation.isAdvisorOfPublication 0059291f-6b5a-4a6c-a661-eef665ac3a18
relation.isOrgUnitOfPublication 6cfa2dc6-c5bf-4f6b-99a2-57105d8f7a6f
relation.isOrgUnitOfPublication 7c022d60-21d5-497c-b552-95e489a06569
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