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    Synthesis of ceramic hollow fiber supported zeolitic imidazolate framework-8 (ZIF-8) membranes with high hydrogen permeability

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    Type
    Article
    Authors
    Pan, Yichang
    Wang, Bo
    Lai, Zhiping cc
    KAUST Department
    Advanced Membranes and Porous Materials Research Center
    Biological and Environmental Sciences and Engineering (BESE) Division
    Chemical Engineering Program
    Physical Science and Engineering (PSE) Division
    Date
    2012-12
    Permanent link to this record
    http://hdl.handle.net/10754/562431
    
    Metadata
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    Abstract
    Purification and recovery of hydrogen from hydrocarbons in refinery streams in the petrochemical industry is an emerging research field in the study of membrane gas separation. Hollow fiber membrane modules can be easily implemented into separation processes at the industrial scale. In this report, hollow yttria-stabilized zirconia (YSZ) fiber-supported zeolitic imidazole framework-8 (ZIF-8) membranes were successfully prepared using a mild and environmentally friendly seeded growth method. Our single-component permeation studies demonstrated that the membrane had a very high hydrogen permeance (~15×10 -7mol/m 2sPa) and an ideal selectivity of H 2/C 3H 8 of more than 1000 at room temperature. This high membrane permeability and selectivity caused serious concentration polarization in the separation of H 2/C 3H 8 mixtures, which led to almost 50% drop in both the H 2 permeance and the separation factor. Enhanced mixing on the feed side could reduce the effect of the concentration polarization. Our experimental data also indicated that the membranes had excellent reproducibility and long-term stability, indicating that the hollow fiber-supported ZIF-8 membranes developed in this study have great potential in industry-scale separation of hydrogen. © 2012 Elsevier B.V.
    Citation
    Pan, Y., Wang, B., & Lai, Z. (2012). Synthesis of ceramic hollow fiber supported zeolitic imidazolate framework-8 (ZIF-8) membranes with high hydrogen permeability. Journal of Membrane Science, 421-422, 292–298. doi:10.1016/j.memsci.2012.07.028
    Sponsors
    This work was supported by the faculty research fund from King Abdullah University of Science and Technology (KAUST). Y.C. Pan thanks SABIC for the Post-Doctoral Fellowship (35000000012-04).
    Publisher
    Elsevier BV
    Journal
    Journal of Membrane Science
    DOI
    10.1016/j.memsci.2012.07.028
    ae974a485f413a2113503eed53cd6c53
    10.1016/j.memsci.2012.07.028
    Scopus Count
    Collections
    Articles; Biological and Environmental Science and Engineering (BESE) Division; Advanced Membranes and Porous Materials Research Center; Physical Science and Engineering (PSE) Division; Chemical Engineering Program

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