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    Characterization of Thermally Cross-Linkable Hollow Fiber Membranes for Natural Gas Separation

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    Type
    Article
    Authors
    Chen, Chien-Chiang
    Miller, Stephen J.
    Koros, William J.
    KAUST Grant Number
    KUS-I1-011-21
    Date
    2012-02-02
    Online Publication Date
    2012-02-02
    Print Publication Date
    2013-01-23
    Permanent link to this record
    http://hdl.handle.net/10754/597761
    
    Metadata
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    Abstract
    The performance of thermally cross-linkable hollow fiber membranes for CO2/CH4 separation and the membrane stability against CO2 plasticization was investigated. The fiber membranes were thermally cross-linked at various conditions. Cross-linking temperature was found to have a significant effect, while shorter soak time and the presence of trace oxidizer (O2 or N2O) had a negligible effect. The cross-linked fibers were tested using high CO2 content feeds (50-70% CO2) at a variety of feed pressures (up to 1000 psia), temperatures, and permeate pressures (up to 100 psia) to evaluate membrane performance under various realistic operating conditions. The results demonstrated that cross-linking improves membrane selectivity and effectively eliminates swelling-induced hydrocarbon loss at high pressures. Excellent stability under aggressive feeds (with CO2 partial pressure up to 700 psia) suggests that cross-linked hollow fiber membranes have great potential for use in diverse aggressive applications, even beyond the CO2/CH4 example explored in this work. © 2012 American Chemical Society.
    Citation
    Chen C-C, Miller SJ, Koros WJ (2013) Characterization of Thermally Cross-Linkable Hollow Fiber Membranes for Natural Gas Separation. Ind Eng Chem Res 52: 1015–1022. Available: http://dx.doi.org/10.1021/ie2020729.
    Sponsors
    We thank Chevron Energy Technology Company for the financial support and Award KUS-I1-011-21 made by King Abdullah University of Science and Technology (KAUST).
    Publisher
    American Chemical Society (ACS)
    Journal
    Industrial & Engineering Chemistry Research
    DOI
    10.1021/ie2020729
    ae974a485f413a2113503eed53cd6c53
    10.1021/ie2020729
    Scopus Count
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