Development of Ethanol/Water Gating Membranes for Ethanol Fermentation Process

Teruhiko Kai; Akihiko Tomita; Yoshikazu Ito; Mikihiro Nomura; Hiromitsu Takaba; Touru Ishikawa; Mitsutaka Kawamura; Shin-ichi Nakao

doi:10.11491/apcche.2004.0.214.0

Asian Pacific Confederation of Chemical Engineers congress program and abstracts

Session ID : 2F-02

DOI https://doi.org/10.11491/apcche.2004.0.214.0

Conference information

Host: The Society of Chemical Engineers, Japan

Development of Ethanol/Water Gating Membranes for Ethanol Fermentation Process

Teruhiko Kai, Akihiko Tomita, Yoshikazu Ito, Mikihiro Nomura, Hiromitsu Takaba, Touru Ishikawa, Mitsutaka Kawamura, Shin-ichi Nakao

Author information

Teruhiko Kai
Department of Chemical System Engineering, The University of Tokyo, Japan
Akihiko Tomita
Department of Environmental Chemical Engineering, Kogakuin University, Japan
Yoshikazu Ito
Department of Chemical System Engineering, The University of Tokyo, Japan
Mikihiro Nomura
Department of Chemical System Engineering, The University of Tokyo, Japan
Hiromitsu Takaba
Department of Chemical System Engineering, The University of Tokyo, Japan
Touru Ishikawa
Department of Environmental Chemical Engineering, Kogakuin University, Japan
Mitsutaka Kawamura
Department of Environmental Chemical Engineering, Kogakuin University, Japan
Shin-ichi Nakao
Department of Chemical System Engineering, The University of Tokyo, Japan

Keywords: fermentation, ethanol concentration, plasma graft filling polymerization, poly- n-isopropylacrylamide-co- n-isopropylmethacrylamide grafted membrane

CONFERENCE PROCEEDINGS FREE ACCESS

Details

Abstract

We have prepared gating membranes that are sensitive to ethanol concentration using a plasma graft filling polymerization technique. poly- n-isopropylacrylamide-co- n-isopropylmethacrylamide (poly-NIPAM-co-NIPMAM) were grafted onto porous polyethylene (PE) substrates, and their gating response to the ethanol concentration in the feed was investigated. A copolymer of NIPAM and NIPMAM-grafted porous polyethylene membranes prepared from a monomer solution that contained 60 mol% of NIPMAM exhibited large changes in flux (from almost zero up to about 100 kg/m²/h) at around 8 wt% of ethanol in the feed. The membranes that we have developed would be applicable to ethanol production by a biomass fermentation process accompanied by a purification stage using membranes, where it is important to control the ethanol concentration in the fermentation tank for efficient production.

Corresponding author

Register with J-STAGE for free!