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


    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


    Other2011 AIChE Annual Meeting, 11AIChE
    Country/TerritoryUnited States
    CityMinneapolis, MN

    ASJC Scopus subject areas

    • Chemical Engineering(all)


    Dive into the research topics of 'Membrane separation of ethanol from bio-ethanol containing gasoline'. Together they form a unique fingerprint.

    Cite this