Membrane separation of ethanol from bio-ethanol containing gasoline

Akihiro Yamasaki, Yohei Ueda, Naoki Takahashi, Yuka Sakai, Shigeo Satokawa, Atsushi Iizuka

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Abstract

    Polymeric membranes for enriching ethanol from bio-ethanol containing gasoline (BEG) have been developed for the on-board separation process. Poly (vinyl alcohol) (PVA)-base membranes with controlled hydrophilicity were prepared and their separation performances were examined based on the pervaporation experimental studies. The hydrophilicity of the PVA-based membranes was controlled by changing the degree of saponification (the fraction of hydroxyl groups). The PVA-based membranes showed high selectivity for ethanol, of which the concentration in the permeate side was higher than 90% for a wide range of the feed composition studied. Increasing the hydrophilicity of the membranes increased the ethanol selectivity over a model hydrocarbon (n-heptane), and the flux decreased. The highest flux observed was as high as 100 g/m 2/h. The results suggest that the membranes can be applicable for the separation processes of ethanol from BEG.

    Original languageEnglish
    Title of host publication11AIChE - 2011 AIChE Annual Meeting, Conference Proceedings
    Publication statusPublished - 2011
    Event2011 AIChE Annual Meeting, 11AIChE - Minneapolis, MN, United States
    Duration: 2011 Oct 162011 Oct 21

    Publication series

    Name11AIChE - 2011 AIChE Annual Meeting, Conference Proceedings

    Other

    Other2011 AIChE Annual Meeting, 11AIChE
    CountryUnited States
    CityMinneapolis, MN
    Period11/10/1611/10/21

    ASJC Scopus subject areas

    • Chemical Engineering(all)

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  • Cite this

    Yamasaki, A., Ueda, Y., Takahashi, N., Sakai, Y., Satokawa, S., & Iizuka, A. (2011). Membrane separation of ethanol from bio-ethanol containing gasoline. In 11AIChE - 2011 AIChE Annual Meeting, Conference Proceedings (11AIChE - 2011 AIChE Annual Meeting, Conference Proceedings).