FER membrane synthesized by a vapor-phase transport method: Its structure and separation characteristics

Norikazu Nishiyama, Takaaki Matsufuji, Korekazu Ueyama, Masahiko Matsukata

    Research output: Contribution to journalArticle

    60 Citations (Scopus)

    Abstract

    The mechanism of formation of ferrierite (FER) membrane on an alumina support by a vapor-phase transport (VPT) method was studied using XRD, SEM, FE-SEM and EDX. The XRD measurement for a FER membrane after the removal of FER particles formed on the support showed that FER was formed in the pores of the alumina support, namely, a FER-alumina composite layer was formed. The FE-SEM image for the cross-sectional view of the FER-alumina composite layer showed that FER nanocrystals of about 50 nm diameter grew in the pores of the alumina support. Pervaporation tests for benzene/p-xylene mixtures were performed at 303 K. Even when the concentration of benzene in the feed solution was extremely small (0.5 mol%), the flux of benzene through the FER membrane was still greater than that of p-xylene. Therefore, a separation factor as high as 600 was obtained in the low feed concentration of benzene. Such a high selectivity for the benzene/p-xylene mixture suggested that the selectivity for the benzene/p-xylene mixture appears at the pore mouths of FER on the feed side of the FER-alumina composite layer.

    Original languageEnglish
    Pages (from-to)293-303
    Number of pages11
    JournalMicroporous Materials
    Volume12
    Issue number4-6
    Publication statusPublished - 1997

    Fingerprint

    Aluminum Oxide
    Benzene
    Alumina
    aluminum oxides
    Vapors
    benzene
    xylene
    Xylene
    vapor phases
    membranes
    Membranes
    porosity
    Scanning electron microscopy
    scanning electron microscopy
    composite materials
    Composite materials
    selectivity
    Pervaporation
    mouth
    Nanocrystals

    Keywords

    • Ferrierite
    • Pervaporation
    • Vapor-phase transport synthesis
    • Zeolitic membrane

    ASJC Scopus subject areas

    • Chemistry(all)
    • Engineering(all)
    • Materials Science(all)

    Cite this

    FER membrane synthesized by a vapor-phase transport method : Its structure and separation characteristics. / Nishiyama, Norikazu; Matsufuji, Takaaki; Ueyama, Korekazu; Matsukata, Masahiko.

    In: Microporous Materials, Vol. 12, No. 4-6, 1997, p. 293-303.

    Research output: Contribution to journalArticle

    Nishiyama, Norikazu ; Matsufuji, Takaaki ; Ueyama, Korekazu ; Matsukata, Masahiko. / FER membrane synthesized by a vapor-phase transport method : Its structure and separation characteristics. In: Microporous Materials. 1997 ; Vol. 12, No. 4-6. pp. 293-303.
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    AU - Matsufuji, Takaaki

    AU - Ueyama, Korekazu

    AU - Matsukata, Masahiko

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