MFI zeolite membranes from a- and randomly oriented monolayers |
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| Authors: | Jungkyu Choi Shubhajit Ghosh Lisa King Michael Tsapatsis |
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| Institution: | (1) Department of Chemical Engineering and Materials Science, University of Minnesota, 151 Amundson Hall, 421 Washington Ave. SE, Minneapolis, MN 55455, USA;(2) UOP LLC, 25 E. Algonquin Rd, Des Plaines, IL, 60017-5017 |
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| Abstract: | c-Oriented columnar MFI films made by secondary growth of randomly oriented seed monolayers, deposited using sonication-assisted
covalent attachment, exhibit n-hexane/2,2-dimethylbutane separation factor of up to 104, n-/i-butane separation factor of up to 50, and p-/o-xylene separation factor of up to 2. A MFI film from a-oriented seed layer shows lower separation factors for the linear vs. branched isomers but higher separation factor for p-/o-xylene. |
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| Keywords: | Zeolite MFI Preferred orientation Butane Hexane Xylene Permeation Separation |
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