Regeneration of Used Frying Oil Using Membrane Process

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  • 膜分離法を用いた廃食用油再生技術の開発
  • マク ブンリホウ オ モチイタ ハイショクヨウアブラ サイセイ ギジュツ ノ カイハツ

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Abstract

Regeneration technology of used frying oil has been developed using hydrophobic nonporous denser membrane. A percentage improvement of total polar materials was 52-61% by the membrane process. The membrane process was found to be effective for improving the overall quality of used frying oil compared to the conventional adsorption process using magnesium oxide or activated clay. By combining membrane and adsorption processes, it was effective in reducing FFA and oxidation products, that is, the quality of used frying oil could be improved to the level of fresh oil. By characterizing the liquid separation mechanism of the membrane, we indicate that the membrane process could be applied not only to the regeneration of used frying oil but also to the separation for various oil and fat industry.

Journal

  • Oleoscience

    Oleoscience 6 (10), 484-492, 2006

    Japan Oil Chemists' Society

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