Journal of Fundamentals of Renewable Energy and Applications
Open Access
ISSN: 2090-4541
+44 1300 500008
ISSN: 2090-4541
+44 1300 500008
Mancini M, Coelho A, Rossi J S, Guebara P F, Perrone O M, Passerine B F G and Boscolo M
Posters-Accepted Abstracts: J Fundam Renewable Energy Appl
Different aspects of the inclusion of gallium hydrotalcite were exploited in this work to produce heterogeneous catalysts
for ethyl biodiesel synthesis with soybean oil. The synthesis of porous mixed metal oxide (PMO), derived from layered
double hydroxides (LDH) hydrotalcite type with the general formula Mg6Al2 (CO3) (OH)16 . 4H2O the ratios of M+2 / M+3
equal to 3: 1; 4: 1 and 5: 1 by the method of co-precipitation and containing Ga3+ in replacement of Al3+ in 50 and 100% ratios
was performed in order to study their structural and catalytic properties of soybean oil transesterification with ethanol .The
reactions were processed at 120°C (12h) in the molar ratio of oil / ethanol 1:20 with 20% (w/w) of catalyst in relation to the oil.
HDL’s respective samples PMO’s were characterized by BET; TG; CO2 adsorption; Zeta potential; XRD and FTIR-ATR. The
catalytic activity was determined by GC-FID. Catalysts with higher ratio M+2 / M+3 were more effective in biodiesel conversion
and the highest yield was 84.8% for the system 4: 1 (MgAl). Catalysts containing 50% Ga yielded 76.3% conversion, where as
complete substitution of Al by Ga gave only 11.9% conversion.
Mancini M is a Master’s student from São Paulo State University. He works in Bioenergy and Bioprocess line research in laboratory Sucrochemistry and Analytical
Chemistry at IBILCE-UNESP with basic heterogeneous catalysts doped with metals for the conversion of soybean oil to ethyl biodiesel.