한국응용과학기술학회지 (Journal of the Korean Applied Science and Technology)

  • 제26권1호
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  • Pages.1-9
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  • 2009
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  • 1225-9098(pISSN)
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  • 2288-1069(eISSN)
한국응용과학기술학회 (The Korean Society of Applied Science and Technology)
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Biodiesel Refining and Glycerin Recovering Process of Transesterification from Tra Catfish Fat

  • Huong, Le Thi Thanh (Center of Chemical Industry, Ho Chi Minh City University of Industry) ;
  • Tan, Phan Minh (Ho Chi Minh City Department of Science and Technology) ;
  • Hoa, Tran Thi Viet (Faculty of Chemical Engineering, Ho Chi Minh City University of Technique) ;
  • Lee, Soo (Department of Chemical Engineering, Changwon National University)
  • 발행 : 2009.03.30
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초록

Nowadays, Tra catfish fat is given attention as an appropriate material for biodiesel production in Vietnam. The aim of this work is to investigate the optimal conditions of refining biodiesel and recovering glycerin by the transesterification from Tra catfish fat using KOH catalyst. As our results, the yield of transesterification was achieved to 94.17% at $50^{\circ}C$ for 45 min with 6:1 molar ratio of methanol to fat in the presence of 0.8% KOH catalyst, and wherein the biodiesel was refined by washing with distilled water at $70^{\circ}C$ and dried in a microwave oven. The yield of raw glycerin recoveries from the transesterification process was 78.58%. The purity of raw glycerin was 84.14% by the conditions of neutralization state with $H_{3}PO_{4}$ solution (pH = 5), $70^{\circ}C$, and 60 min. Activated carbon (3.0 wt.%) was used for the bleaching process at $80^{\circ}C$ for 20 min. The biodiesel was obtained in accordance with for ASTM D 6751 (biodiesel standard). The ash and water of raw glycerins were 7.32 and 8.01%, respectively, and implied that the raw glycerin is very promising candidate to be used as a raw material for textile and cosmetic industries.

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