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Transesterification Kinetics of Waste Vegetable Oil in Supercritical Alcohols

Author

Listed:
  • Nawaraj Sanjel

    (Department of Environmental Engineering, Kongju National University, 1223-24 Cheonan-Daero, Subuk, Cheonan, Chungnam 330-717, Korea)

  • Jae Hoi Gu

    (Plant Engineering Center, Institute for Advanced Engineering, San 5, Woncheon-dong, Suwon, Kyonggi 443-749, Korea)

  • Sea Cheon Oh

    (Department of Environmental Engineering, Kongju National University, 1223-24 Cheonan-Daero, Subuk, Cheonan, Chungnam 330-717, Korea)

Abstract

The kinetic analysis method using the non-isothermal technique was proposed to determine the kinetic parameters for the transesterification reaction of waste vegetable oil (WVO) in supercritical alcohols. To investigate the transesterification of WVO, experiments have been carried out with WVO and alcohols at three molar ratios of 1:6, 1:12 and 1:18 for both supercritical ethanol (SCE) and supercritical methanol (SCM) at temperatures between 210 °C and 350 °C in a 25 mL batch reactor. The products were analyzed by gas chromatography mass spectrometry (GC-MS). To verify the effectiveness of the proposed kinetic analysis method, the experimental values were compared with the values calculated using the kinetic parameters obtained from this work. It was found that the proposed kinetic analysis method gave reliable kinetic parameters for the transesterification of WVO in supercritical alcohols. It was also seen that SCM was a better solvent than SCE for the transesterification of WVO.

Suggested Citation

  • Nawaraj Sanjel & Jae Hoi Gu & Sea Cheon Oh, 2014. "Transesterification Kinetics of Waste Vegetable Oil in Supercritical Alcohols," Energies, MDPI, vol. 7(4), pages 1-12, April.
    • Handle: RePEc:gam:jeners:v:7:y:2014:i:4:p:2095-2106:d:34612
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    References listed on IDEAS

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    1. Jeeban Poudel & Sea Cheon Oh, 2012. "Degradation Characteristics of Wood Using Supercritical Alcohols," Energies, MDPI, vol. 5(12), pages 1-15, November.
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    Cited by:

    1. Jeeban Poudel & Sujeeta Karki & Nawaraj Sanjel & Malesh Shah & Sea Cheon Oh, 2017. "Comparison of Biodiesel Obtained from Virgin Cooking Oil and Waste Cooking Oil Using Supercritical and Catalytic Transesterification," Energies, MDPI, vol. 10(4), pages 1-14, April.
    2. Jeeban Poudel & Malesh Shah & Sujeeta Karki & Sea Cheon Oh, 2017. "Qualitative Analysis of Transesterification of Waste Pig Fat in Supercritical Alcohols," Energies, MDPI, vol. 10(3), pages 1-13, February.

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    1. Jeeban Poudel & Malesh Shah & Sujeeta Karki & Sea Cheon Oh, 2017. "Qualitative Analysis of Transesterification of Waste Pig Fat in Supercritical Alcohols," Energies, MDPI, vol. 10(3), pages 1-13, February.

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