Kinetic Study on Ultrasound Assisted Biodiesel Production from Waste Cooking Oil


  • Widayat Widayat Master Program of Chemical Engineering, Diponegoro University, Jl. Prof. Soedarto, SH, Tembalang, Semarang 50275,
  • Haris Nu'man Aulia Master Program of Chemical Engineering, Diponegoro University, Jl. Prof. Soedarto, SH, Tembalang, Semarang 50275,
  • H Hadiyanto Master Program of Chemical Engineering, Diponegoro University, Jl. Prof. Soedarto, SH, Tembalang, Semarang 50275,
  • Setia Budi Sasongko Master Program of Chemical Engineering, Diponegoro University, Jl. Prof. Soedarto, SH, Tembalang, Semarang 50275,



The objective of this research was to study a kinetic model of biodiesel production from waste cooking oil assisted by ultrasound power. The model considered the biodiesel production process as a 2nd order reversible reaction, while its kinetic parameters were estimated using MATLAB, based on data extracted from Hingu, et al. [1]. The data represented experiments under low-frequency ultrasonic wave (20 kHz) and variations of temperature, power, catalyst concentration, and alcohol-oil molar ratio. Statistical analysis showed that the proposed model fits well to the experimental data with a determination coefficient (R2) higher than 0.9.


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