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dc.contributor.authorWard, Jason K.
dc.contributor.authorKoros, William J.
dc.date.accessioned2016-02-25T12:58:34Z
dc.date.available2016-02-25T12:58:34Z
dc.date.issued2011-07
dc.identifier.citationWard JK, Koros WJ (2011) Crosslinkable mixed matrix membranes with surface modified molecular sieves for natural gas purification: I. Preparation and experimental results. Journal of Membrane Science 377: 75–81. Available: http://dx.doi.org/10.1016/j.memsci.2011.04.010.
dc.identifier.issn0376-7388
dc.identifier.doi10.1016/j.memsci.2011.04.010
dc.identifier.urihttp://hdl.handle.net/10754/597899
dc.description.abstractDense film mixed matrix membranes (MMMs) comprised of SSZ-13 dispersed in a crosslinkable polyimide (PDMC) were fabricated and evaluated for carbon dioxide/methane separations. MMMs containing 25% (w/w) as-received (AR) SSZ-13 exhibited a carbon dioxide permeability of 153 Barrers with a carbon dioxide/methane ideal selectivity of 34.7 at 65. psia and 35 °C. This represents a permeability enhancement of 129% and a decline in selectivity of 4.7% over neat PDMC (PCO2=66.9 Barrers, αCO2/CH4=36.4). A sieve surface modification procedure was developed with the aim of improving SSZ-13/PDMC MMM transport properties. MMMs containing 25% (w/w) surface modified (SM) SSZ-13 exhibited a carbon dioxide permeability of 148 Barrers and carbon dioxide/methane selectivity of 38.9 at 65. psia and 35 °C, representing enhancements in both permeability and selectivity of 121% and 6.9%, respectively. Mixed gas permeation analyses of MMMs containing SM-SSZ-13 using a 10% carbon dioxide/90% methane mixture shows that permeability and selectivity enhancements of 47% and 13%, respectively, over neat PDMC are possible at 700. psia and 35 °C. © 2011 Elsevier B.V.
dc.description.sponsorshipThe authors would like to acknowledge funding for this work from ChevronTexaco Energy Technology Company, the National Science Foundation STC-CERSP (CHE-9876674), and King Abdullah University of Science and Technology (KAUST award no. KUS-I1-011-21).
dc.publisherElsevier BV
dc.subjectGas separation
dc.subjectMixed matrix
dc.subjectMolecular sieve
dc.subjectNatural gas
dc.subjectPolyimide
dc.titleCrosslinkable mixed matrix membranes with surface modified molecular sieves for natural gas purification: I. Preparation and experimental results
dc.typeArticle
dc.identifier.journalJournal of Membrane Science
dc.contributor.institutionGeorgia Institute of Technology, Atlanta, United States
kaust.grant.numberKUS-I1-011-21


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