Izvorni znanstveni članak
https://doi.org/10.15255/CABEQ.2014.2117
Esterification of High Free Fatty Acid Rice Bran Oil: Parametric and Kinetic Study
R. Arora
; a)Dr S S Bhatnagar University Institute of Chemical Engineering & Technology, Panjab University, Chandigarh, India; b)Shaheed Bhagat Singh State Technical Campus, Ferozepur, India
A. P. Toor
; a)Dr S S Bhatnagar University Institute of Chemical Engineering & Technology, Panjab University, Chandigarh, India; c)Energy Research Centre, Panjab University, Chandigarh, India
R. K. Wanchoo
; Dr S S Bhatnagar University Institute of Chemical Engineering & Technology, Panjab University, Chandigarh, India
Sažetak
The esterification of free fatty acids (FFA) in rice bran oil (RBO) with methanol in the presence of sulfuric acid as a homogeneous catalyst was studied. The effects of catalyst concentration (0.15 to 1.0 wt%), reaction temperature (318 K to 333 K), and molar ratio of oil to methanol (1:5 to 1:30) on the conversion of FFA were investigated to optimize the conditions for maximum conversion of FFAs. A detailed kinetic study was carried out using second-order pseudo-homogeneous kinetic model. The kinetic parameters were obtained and activation energy was determined from the Arrhenius plot. The
activation energy of 23.21 kJ mol–1 and pre-exponential factor of 32.65 L mol–1 min–1 was obtained under the optimum catalyst concentration of 0.5 wt %, stirring speed of 500 rpm and oil to methanol ratio 1:20.
Ključne riječi
biodiesel; esterification; high free fatty acid oil; homogeneous catalyst; kinetics
Hrčak ID:
150654
URI
Datum izdavanja:
3.1.2016.
Posjeta: 2.582 *