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Kinetics of palm oil transesterification in a batch reactor

  • Published:
Journal of the American Oil Chemists' Society

Abstract

Methyl esters were produced by transesterification of palm oil with methanol in the presence of a catalyst (KOH). The rate of transesterification in a batch reactor increased with temperature up to 60°C. Higher temperatures did not reduce the time to reach maximal conversion. The conversion of triglycerides (TG), diglycerides (DG), and monoglycerides (MG) appeared to be second order up to 30 min of reaction time. Reaction rate constants for TG, DG, and MG hydrolysis reactions were 0.018–0.191 (wt%·min)−1, and were higher at higher temperatures and higher for the MG reaction than for TG hydrolysis. Activation energies were 14.7, 14.2, and 6.4 kcal/mol for the TG, DG, and MG hydrolysis reactions, respectively. The optimal catalyst concentration was 1% KOH.

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References

  1. Muniyappa, P.R., S.C. Brammer, and H. Noureddini, Improved Conversion of Plant Oils and Animal Fats into Biodiesel and Co-product, Bioresour. Technol. 56:19–24 (1996).

    Article  CAS  Google Scholar 

  2. Sridharan, R., and I.M. Mathai, Transesterification Reactions, J. Sci. Ind. Res. 33:178–187 (1974).

    CAS  Google Scholar 

  3. Freedman, B., R.O. Butterfield, and E.H. Pryde, Transesterification Kinetics of Soybean Oil, J. Am. Oil Chem. Soc. 63:1375–1380 (1986).

    CAS  Google Scholar 

  4. Noureddini, H., and D. Zhu, Kinetics of Transesterification of Soybean Oil, 74:1457–1463 (1997).

    CAS  Google Scholar 

  5. Freedman, B., E.H. Pryde, and T.L. Mounts, Variables Affecting the Yield of Fatty Esters from Transesterified Vegetable Oil, 61:1638–1643 (1984).

    CAS  Google Scholar 

  6. Isigigur, A., F. Karaosmanoglu, and H.A. Aksoy, Methyl Ester from Safflower Seed Oil of Turkish Origin as a Biofuel for Diesel Engines, Appl. Biochem. Biotechnol. 45/46:103–112 (1994).

    Article  Google Scholar 

  7. Ahn, E., M. Koncar, M. Mittelbach, and R. Marr, A Low-waste Process for the Production of Biodiesel, Sep. Sci. Technol. 30: 2021–2033 (1995).

    CAS  Google Scholar 

  8. Darnoko, D., M. Cheryan, and E.G. Perkins, Simultaneous Analysis of Vegetable Oil Transesterification Products by Gel Permeation Chromatography, J. Liq. Chrom. 23:2327–2335 (2000).

    Article  CAS  Google Scholar 

  9. Official and Tentative Methods, 3rd edn., American Oil Chemists’ Society, Champaign, 1985, Method Ce 1-62.

  10. Freedman, B., W.F. Kwolek, and E.H. Pryde, Quantitation in the Analysis of Transesterified Soybean Oil by Capillary Gas Chromatography, J. Am. Oil Chem. Soc. 63:1370–1375 (1986).

    CAS  Google Scholar 

  11. Darnoko, D., Continuous Production of Methyl Esters from Palm Oil and Recovery of Beta-Carotene by Membrane Technology, Ph.D. Thesis, University of Illinois, Urbana, 1999.

    Google Scholar 

  12. Dandik, L., and H.A. Aksoy, The Kinetics of Hydrolysis of Nigella sativa (black cumin) Seed Oil Catalyzed by Native Lipase in Ground Seed, J. Am. Oil Chem. Soc. 69:1239–1241 (1992).

    CAS  Google Scholar 

  13. Smith, J.M., Chemical Engineering Kinetics, 3rd edn., McGraw-Hill Publishing Co., New York, 1981.

    Google Scholar 

  14. Boocock, G.B., S.K. Konar, V. Mao, C. Lee, and S. Buligan, Fast Formation of High-Purity Methyl Esters from Vegetable Oils. J. Am. Oil Chem. Soc. 75:1167–1172 (1998).

    CAS  Google Scholar 

  15. Fillieres, R., B. Benjelloun-Mlayah, and M. Delmas, Ethanolysis of Rapeseed Oil: Quantitation of Ethyl Esters, Mono-, Di-, and Triglycerides and Glycerol by High-Performance Size-Exclusion Chromatography, 72:427–432 (1995).

    CAS  Google Scholar 

  16. Vicente, G., A. Coteron, M. Martinez, and J. Aracil, Application of the Factorial Design of Experiments and Response Surface Methodology to Optimize Biodiesel Production, Ind. Crops Prod. 8:29–35 (1998).

    Article  CAS  Google Scholar 

  17. Maycock, J.H., Extraction of Crude Palm Oil, in Palm Oil, edited by F.D. Gunstone, Crit. Rep. Appl. Chem., John Wiley & Sons, New York, Vol. 15, 1987, pp. 29–38.

    Google Scholar 

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Correspondence to Munir Cheryan.

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Darnoko, D., Cheryan, M. Kinetics of palm oil transesterification in a batch reactor. J Amer Oil Chem Soc 77, 1263–1267 (2000). https://doi.org/10.1007/s11746-000-0198-y

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  • DOI: https://doi.org/10.1007/s11746-000-0198-y

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