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Kinetic model for the esterification of oleic acid catalyzed by zinc acetate in subcritical methanol

Author

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  • Song, Chengcai
  • Qi, Yongqin
  • Deng, Tiansheng
  • Hou, Xianglin
  • Qin, Zhangfeng

Abstract

The esterification of oleic acid in subcritical methanol catalyzed by zinc acetate was investigated in a batch-type autoclave. The effect of reaction conditions such as temperature, pressure, reaction time and molar ratio of oleic acid to methanol on the esterification was examined. The oleic acid conversion reached 95.0% under 220°C and 6.0MPa with the molar ratio of methanol to oleic acid being 4 and 1.0wt% zinc acetate as catalyst. A kinetic model for the esterification was established. By fitting the kinetic model with the experimental results, the reaction order n=2.2 and activation energy Ea=32.62KJ/mol were obtained.

Suggested Citation

  • Song, Chengcai & Qi, Yongqin & Deng, Tiansheng & Hou, Xianglin & Qin, Zhangfeng, 2010. "Kinetic model for the esterification of oleic acid catalyzed by zinc acetate in subcritical methanol," Renewable Energy, Elsevier, vol. 35(3), pages 625-628.
    • Handle: RePEc:eee:renene:v:35:y:2010:i:3:p:625-628
    DOI: 10.1016/j.renene.2009.08.004
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    Cited by:

    1. Talebian-Kiakalaieh, Amin & Amin, Nor Aishah Saidina & Zarei, Alireza & Noshadi, Iman, 2013. "Transesterification of waste cooking oil by heteropoly acid (HPA) catalyst: Optimization and kinetic model," Applied Energy, Elsevier, vol. 102(C), pages 283-292.
    2. Mohammad Fauzi, Ahmad Hafiidz & Amin, Nor Aishah Saidina & Mat, Ramli, 2014. "Esterification of oleic acid to biodiesel using magnetic ionic liquid: Multi-objective optimization and kinetic study," Applied Energy, Elsevier, vol. 114(C), pages 809-818.

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