PERVAPORATION-AIDED ESTERIFICATION OF OLEIC ACID

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概要

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• Esterification of oleic acid with ethanol in the presence of p-toluenesulfonic acid was carried out at temperatures up to 383 K and initial molar ratios of ethanol to oleic acid, m0, up to 6. A kinetic equation having both a term of rate reduction due to water and a m0-dependent rate constant are presented. The esterification, aided with pervaporation through asymmetric polyimide membranes, was carried out at 348 K and 371 K under atmospheric and elevated pressures respectively. Almost complete conversion was attained for m0 of 2 in a short time with a low concentration of the catalyst at 371 K. Only water and ethanol permeated through the membranes. The permeation flux was expressed by the product of the permeability constant, P, and the permeant concentration of the liquid. P depended on the concentration of oleic acid and ethyl oleate at 371 K, but not at 348 K. A model in which the kinetic equation is combined with the permeation flux equation taking both volume change and sampling loss of the reaction mixture into consideration represented the experimental time course of the reaction sufficiently well. The influence of operating parameters on the reaction time required for a conversion of 98% and on the productivity was investigated by simulation from the model.

• 社団法人 化学工学会の論文
• 1993-10-20

著者

• OKAMOTO Ken-ichi

  Department of Chemistry, University of Tsukuba

• TANAKA Kazuhiro

  Department of Neurosurgery, Kobe University Graduate School of Medicine

• 岡本 研

  日本医科大学大学院医科生物化学分野

• 岡本 研

  日本医科大学生化学分子生物学講座(構造生物学・代謝学)

• 田中 一宏

  (株)山口大学大学院理工学研究科環境共生系専攻

• YAMAMOTO Masuji

  Department of Pediatrics, Hyogo Medical University

• KITA Hidetoshi

  Department of Advanced Materials Science and Engineering, Yamaguchi University

• OTOSHI Yoshiharu

  Department of Advanced Materials Science and Engineering, Faculty of Engineering, Yamaguchi Universi

• SEMOTO Toshio

  Department of Advanced Materials Science and Engineering, Faculty of Engineering, Yamaguchi Universi

• YANO Motoharu

  Department of Advanced Materials Science and Engineering, Faculty of Engineering, Yamaguchi Universi

• Yamamoto Masuji

  Department Of Advanced Materials Science And Engineering Faculty Of Engineering Yamaguchi University

• Semoto Toshio

  Department Of Advanced Materials Science And Engineering Faculty Of Engineering Yamaguchi University

• Yano Motoharu

  Department Of Advanced Materials Science And Engineering Faculty Of Engineering Yamaguchi University

• Kita H

  Department Of Advanced Materials Science And Engineering Yamaguchi University

• Kita Hidetoshi

  Department Of Advanced Materials Science And Engineering Faculty Of Engineering Yamaguchi University

• Okamoto Ken-ichi

  Department Of Advanced Materials Science And Engineering Faculty Of Engineering Yamaguchi University

• Okamoto Ken-ichi

  Department Of Advanced Materials Science & Engineering Faculty Of Engineering Yamaguchi Universi

• Tanaka Kazuhiro

  Department Of Neurosurgery Kobe University Graduate School Of Medicine

• Otoshi Yoshiharu

  Department Of Advanced Materials Science And Engineering Faculty Of Engineering Yamaguchi University

• Tanaka Kazuhiro

  Department Of Advanced Materials Science And Engineering Faculty Of Engineering Yamaguchi University

• Kita Hidetoshi

  Department of Advanced Materials Science & Engineering, Faculty of Engineering, Yamaguchi University

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