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    Highly scalable ZIF-based mixed-matrix hollow fiber membranes for advanced hydrocarbon separations

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    Type
    Article
    Authors
    Zhang, Chen
    Zhang, Kuang
    Xu, Liren cc
    Labreche, Ying
    Kraftschik, Brian
    Koros, William J.
    KAUST Grant Number
    KUS-I1-011-21
    Date
    2014-05-29
    Online Publication Date
    2014-05-29
    Print Publication Date
    2014-07
    Permanent link to this record
    http://hdl.handle.net/10754/598507
    
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    Abstract
    ZIF-8/6FDA-DAM, a proven mixed-matrix material that demonstrated remarkably enhanced C3H6/C3H8 selectivity in dense film geometry, was extended to scalable hollow fiber geometry in the current work. We successfully formed dual-layer ZIF-8/6FDA-DAM mixed-matrix hollow fiber membranes with ZIF-8 nanoparticle loading up to 30 wt % using the conventional dry-jet/wet-quench fiber spinning technique. The mixed-matrix hollow fibers showed significantly enhanced C3H6/C3H8 selectivity that was consistent with mixed-matrix dense films. Critical variables controlling successful formation of mixed-matrix hollow fiber membranes with desirable morphology and attractive transport properties were discussed. Furthermore, the effects of coating materials on selectivity recovery of partially defective fibers were investigated. To our best knowledge, this is the first article reporting successful formation of high-loading mixed-matrix hollow fiber membranes with significantly enhanced selectivity for separation of condensable olefin/paraffin mixtures. Therefore, it represents a major step in the research area of advanced mixed-matrix membranes. © 2014 American Institute of Chemical Engineers.
    Citation
    Zhang C, Zhang K, Xu L, Labreche Y, Kraftschik B, et al. (2014) Highly scalable ZIF-based mixed-matrix hollow fiber membranes for advanced hydrocarbon separations. AIChE J 60: 2625–2635. Available: http://dx.doi.org/10.1002/aic.14496.
    Sponsors
    This publication is based on work supported by Award No. KUS-I1-011-21, made by King Abdullah University of Science and Technology (KAUST).
    Publisher
    Wiley
    Journal
    AIChE Journal
    DOI
    10.1002/aic.14496
    ae974a485f413a2113503eed53cd6c53
    10.1002/aic.14496
    Scopus Count
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