TY - JOUR AB - In Brazil the soybean oil is most utilized for biodiesel production due to its high production. Nevertheless, this feedstock presents low oxidative stability. This work aimed to evaluate the application of castor oil, babassu oil and beef tallow in soybean oil as an additive (< 5 %) to improve thermal and oxidative stability of ethyl soybean biodiesel. The characterizations realized were gas chromatography, kinematic viscosity, thermal analysis and Rancimat. In the binary and ternary formulations were added 2-4 % (w/w) babassu oil, castor oil or beef tallow in soybean oil for promoting ethyl transesterification. Content of ester agrees with Brazilian biodiesel specification, except to soybean biodiesel with 2 % beef tallow (87.2 %). The increase in content of beef tallow in soybean oil for biodiesel synthesis led to an increase in the cloud point and pour point, mainly soybean biodiesel with addition of 4 % beef tallow. In relation to the kinematic viscosity all biodiesel formulations were in agreement with the Technical Regulation established by ANP 3/2014, except for soybean biodiesel with addition of 4 % beef tallow. Thermogravimetric curves indicated that 4 % ternary formulation was the most stable (245 A degrees C). In relation to oxidative stability, the most stable were soybean biodiesel with 2 and 4 % beef tallow and 4 % ternary formulation. Considering thermal, oxidative and flow properties, it is suggested that 4 % ternary formulation (soybean oil additive with 2 % babassu oil and 2 % castor oil) is the most appropriate for production of biodiesel. AD - Univ Fed Paraiba, Dept Chem, LACOM, CCEN, Campus 1, BR-58059900 Joao Pessoa, Paraiba, Brazil AN - WOS:000371159900041 AU - Farias, A. F. F. AU - da Conceicao, M. M. AU - Cavalcanti, E. H. S. AU - Melo, M. A. R. AU - dos Santos, I. M. G. AU - de Souza, A. G. DA - Mar DO - 10.1007/s10973-015-4772-0 IS - 3 J2 - J Therm Anal Calorim KW - soybean biodiesel LA - English N1 - Df2gf PY - 2016 SN - 1388-6150 SP - 2121-2127 ST - Analysis of soybean biodiesel additive with different formulations of oils and fats T2 - Journal of Thermal Analysis and Calorimetry TI - Analysis of soybean biodiesel additive with different formulations of oils and fats UR - ://WOS:000371159900041 VL - 123 ID - 12440 ER -