Kinetic Model for Soybean Oil Hydrogenation Using Loop Reactor.

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概要

• 論文の詳細を見る

• A kinetic model including isomerization of fatty acids for soybean oil hydrogenation considering the adsorption of fatty acids on the catalyst surface affecting the hydrogenation rate has been evaluated in this study. The hydrogenation of soybean oil was conducted in a 12 <I>l</I> loop reactor equipped with a venturi nozzle. A reduced nickel catalyst was adopted. The hydrogenation experiment was carried out an experimental design with respect to reaction temperature, flow rate of catalyst-oil mixture, hydrogen pressure and reaction time. Adsorption of fatty acids including <I>trans</I>-acids on the surface of the reduced nickel catalyst significantly affected the reaction rate of the hydrogenation. The adsorption equilibrium coefficients of linolenic and linoleic acids were much greater than those of oleic and elaidic acids, which indicated that the former acids were hydrogenated faster than the latter acids. The time course of fatty acid concentration calculated from the hydrogenation rate constant derived from the kinetic model proposed in this study was in good agreement with those obtained from experiments. The kinetic model explained the hydrogenation totally with consideration of <I>trans</I>-acid formation.

• 社団法人 日本食品科学工学会の論文

著者

• Konishi Hiroaki

  Research Institute Nippon Menard Cosmetic Co. Ltd

• CHIBA Tadatoshi

  Faculty of Engineering, Hokkaido University

• Sanada Yuzo

  Faculty of Engineering, Hokkaido University

• KAWANARI Masami

  Research & Development Division, Snow Brand Milk Products Co., Ltd.

• TAKEYA Koji

  Inspection Center, Snow Brand Milk Products Co., Ltd.

• KONISHI Hiroaki

  Research & Development Division, Snow Brand Milk Products Co., Ltd.

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