Crosslinkable mixed matrix membranes with surface modified molecular sieves for natural gas purification: I. Preparation and experimental results
dc.contributor.author | Ward, Jason K. | |
dc.contributor.author | Koros, William J. | |
dc.date.accessioned | 2016-02-25T12:58:34Z | |
dc.date.available | 2016-02-25T12:58:34Z | |
dc.date.issued | 2011-07 | |
dc.identifier.citation | Ward 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.issn | 0376-7388 | |
dc.identifier.doi | 10.1016/j.memsci.2011.04.010 | |
dc.identifier.uri | http://hdl.handle.net/10754/597899 | |
dc.description.abstract | Dense 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.sponsorship | The 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.publisher | Elsevier BV | |
dc.subject | Gas separation | |
dc.subject | Mixed matrix | |
dc.subject | Molecular sieve | |
dc.subject | Natural gas | |
dc.subject | Polyimide | |
dc.title | Crosslinkable mixed matrix membranes with surface modified molecular sieves for natural gas purification: I. Preparation and experimental results | |
dc.type | Article | |
dc.identifier.journal | Journal of Membrane Science | |
dc.contributor.institution | Georgia Institute of Technology, Atlanta, United States | |
kaust.grant.number | KUS-I1-011-21 |