Epoxidation of methyl esters derived from Jatropha oil: An optimization study


  • M. Mushtaq Chemical Engineering Department, Universiti Technologi PETRONAS
  • Isa M. Tan Chemical Engineering Department, Universiti Technologi PETRONAS
  • M. Nadeem Subsurface Technology, PETRONAS Research Sdn. Bhd (PRSB)
  • C. Devi Chemical Engineering Department, Universiti Technologi PETRONAS
  • S. Y. C. Lee Chemical Engineering Department, Universiti Technologi PETRONAS
  • M. Sagir Chemical Engineering Department, Universiti Technologi PETRONAS
  • U. Rashid Institute of Advanced Technology, Universiti Putra Malaysia




Characterization, Epoxidised Jatropha oil, Optimization, Response surface methodology


The optimization of the epoxidation reaction of methyl esters obtained from Jatropha oil was appraised. Response surface methodology (RSM) based on a central composite rotatable design (CCRD) was employed for the experimental design. Four reaction variables namely hydrogen peroxide/ C=C mole ratio, formic acid/C=C mole ratio, reaction temperature and reaction time were evaluated. The optimum epoxidation conditions calculated by the quadratic model were 3.12 moles of hydrogen peroxide/C=C moles, 0.96 moles of formic acid/C=C moles, a reaction temperature of 70.0 °C and a reaction time of 277 minutes. A reaction optimized by the proposed process parameters provided a yield of 92.89 ± 1.29 wt.% with relatively improved reaction time. Hydrogen peroxide concentration and reaction temperature were found to be the most significant variables while reaction temperature and hydrogen peroxide showed strong interactions. The epoxidized methyl esters were analyzed using FT-IR, 1H NMR and 13C NMR techniques. This study suggested relatively higher molar ratio of formic acid required than was proposed in the literature.


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How to Cite

Mushtaq M, Tan IM, Nadeem M, Devi C, Lee SYC, Sagir M, Rashid U. Epoxidation of methyl esters derived from Jatropha oil: An optimization study. grasasaceites [Internet]. 2013Mar.30 [cited 2021Sep.19];64(1):103-14. Available from: https://grasasyaceites.revistas.csic.es/index.php/grasasyaceites/article/view/1414