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,)
Hadiyanto, H ( Master Program of Chemical Engineering, Diponegoro University, Jl. Prof. Soedarto, SH, Tembalang, Semarang 50275,)
Sasongko, Setia Budi ( 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.