Reverse-selective microporous membrane for gas separation

Ken Ichi Sawamura, Teruaki Izumi, Kiyotoshi Kawasaki, Shintaro Daikohara, Tetsu Ohsuna, Mitsuko Takada, Yasushi Sekine, Eiichi Kikuchi, Masahiko Matsukata

    Research output: Contribution to journalArticle

    8 Citations (Scopus)

    Abstract

    Reverse-selective membranes,through which bigger molecules selectively permeate, are attractive for developing chemical processes utilizing hydrogen because they can maintain the high partial pressure of hydrogen required for their further downstream utilization. Although several of these chemical processes are operated above 473 K, membranes with outstanding reverse-selective separation performance at these temperatures are still to be reported. Herein, we propose a new adsorption-based reverse-selective membrane that utilizes a Na cation occluded in a zeolitic framework. The membrane developed in this work, a compact Na+-exchanged ZSM-5 (NaZSM-5) type zeolite membrane, enables us to selectively permeate and separate bigger polar molecules, such as methanol and water, from a stream containing hydrogen, above 473 K. On the other hand, a Na+-free, H+-exchanged ZSM-5 (HZSM-5) type zeolite membrane did not show separation properties at these temperatures. The microporous zeolite membrane developed in this study can be applied to a variety of chemical reaction systems to minimize energy consumption.

    Original languageEnglish
    Pages (from-to)1070-1077
    Number of pages8
    JournalChemistry - An Asian Journal
    Volume4
    Issue number7
    DOIs
    Publication statusPublished - 2009 Jul 6

    Fingerprint

    Gases
    Membranes
    Chemical Phenomena
    Hydrogen
    Zeolites
    Molecules
    Temperature
    Partial Pressure
    Partial pressure
    Adsorption
    Methanol
    Cations
    Chemical reactions
    Energy utilization
    Water
    ZSM-5 zeolite

    Keywords

    • Gas separation
    • Membranes
    • Microporous materials
    • Transmission electron microscopy
    • Zeolites

    ASJC Scopus subject areas

    • Chemistry(all)

    Cite this

    Sawamura, K. I., Izumi, T., Kawasaki, K., Daikohara, S., Ohsuna, T., Takada, M., ... Matsukata, M. (2009). Reverse-selective microporous membrane for gas separation. Chemistry - An Asian Journal, 4(7), 1070-1077. https://doi.org/10.1002/asia.200900048

    Reverse-selective microporous membrane for gas separation. / Sawamura, Ken Ichi; Izumi, Teruaki; Kawasaki, Kiyotoshi; Daikohara, Shintaro; Ohsuna, Tetsu; Takada, Mitsuko; Sekine, Yasushi; Kikuchi, Eiichi; Matsukata, Masahiko.

    In: Chemistry - An Asian Journal, Vol. 4, No. 7, 06.07.2009, p. 1070-1077.

    Research output: Contribution to journalArticle

    Sawamura, KI, Izumi, T, Kawasaki, K, Daikohara, S, Ohsuna, T, Takada, M, Sekine, Y, Kikuchi, E & Matsukata, M 2009, 'Reverse-selective microporous membrane for gas separation', Chemistry - An Asian Journal, vol. 4, no. 7, pp. 1070-1077. https://doi.org/10.1002/asia.200900048
    Sawamura KI, Izumi T, Kawasaki K, Daikohara S, Ohsuna T, Takada M et al. Reverse-selective microporous membrane for gas separation. Chemistry - An Asian Journal. 2009 Jul 6;4(7):1070-1077. https://doi.org/10.1002/asia.200900048
    Sawamura, Ken Ichi ; Izumi, Teruaki ; Kawasaki, Kiyotoshi ; Daikohara, Shintaro ; Ohsuna, Tetsu ; Takada, Mitsuko ; Sekine, Yasushi ; Kikuchi, Eiichi ; Matsukata, Masahiko. / Reverse-selective microporous membrane for gas separation. In: Chemistry - An Asian Journal. 2009 ; Vol. 4, No. 7. pp. 1070-1077.
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