Analysis of soybean biodiesel additive with different formulations of oils and fats

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• 作者：Ana Flávia Félix Farias…
• 关键词：Soybean biodiesel ; Additive ; Oil formulations ; Oxidative stability
• 刊名：Journal of Thermal Analysis and Calorimetry
• 出版年：2016
• 出版时间：March 2016
• 年：2016
• 卷：123
• 期：3
• 页码：2121-2127
• 全文大小：594 KB
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• 作者单位：Ana Flávia Félix Farias (1)
  Marta Maria da Conceição (2)
  Eduardo Homem Siqueira Cavalcanti (3)
  Marco Aurélio Rodrigues Melo (1)
  Ieda Maria Garcia dos Santos (1)
  Antônio Gouveia de Souza (1)
  
  1. LACOM, Chemistry Department, CCEN, Federal University of Paraiba, Campus I, João Pessoa, PB, CEP 58059-900, Brazil
  2. Center of Technology and Regional Development, CTDR, IDEP, Federal University of Paraiba, Mangabeira VII, João Pessoa, PB, CEP 58055-000, Brazil
  3. Institute National of Technology, Rio de Janeiro, RJ, CEP 20081-312, Brazil
  
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Chemistry
  Sciences
  Polymer Sciences
  Physical Chemistry
  Inorganic Chemistry
  Measurement Science and Instrumentation
  
• 出版者：Akad茅miai Kiad贸, co-published with Springer Science+Business Media B.V., Formerly Kluwer Academic
• ISSN：1572-8943

文摘

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 °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.