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,)

Journal of Engineering and Technological Sciences
Vol. 47 No. 4 (2015)

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.