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- W2614930852 abstract "Abstract This study provided a novel supercritical methanol transesterification process with little amount of CH3ONa catalyst to synthesize biodiesel from soybean oil by response surface technology. The maximum biodiesel yield was 97.42% under the optimal conditions of 250 °C, methanol to oil molar ratio of 23:1, 1.0 wt% CH3ONa and 20 min. Temperature was proved to have the most significant effect on transesterification, followed by methanol to oil molar ratio and catalyst amount. The kinetic model suggested a 1.5th order reaction with the activation energy of 27.06 kJ·mol−1 and the pre-exponential factor of 102.71. The values of thermodynamic parameters including enthalpy, entropy and Gibbs free energy for this process were calculated as 23.15 kJ·mol−1, −0.22 kJ·mol−1·K−1 and 137.43 kJ·mol−1 at 250 °C, respectively. Reduced reaction temperature, catalyst amount, and reaction time are among the advantages of the integrated process for biodiesel production over single supercritical process and conventional catalytic methods." @default.
- W2614930852 created "2017-05-26" @default.
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- W2614930852 date "2017-09-01" @default.
- W2614930852 modified "2023-09-24" @default.
- W2614930852 title "Process optimization, kinetic and thermodynamic studies on biodiesel production by supercritical methanol transesterification with CH3ONa catalyst" @default.
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- W2614930852 doi "https://doi.org/10.1016/j.fuel.2017.05.019" @default.
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