Thermal behavior study of biodiesel standard reference materials |
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| Authors: | Eveline De Robertis Gabriela F Moreira Raigna A Silva Carlos A Achete |
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| Institution: | 1.Divis?o de Metrologia de Materiais,Instituto Nacional de Metrologia, Normaliza??o e Qualidade Industrial,Duque de Caxias,Brazil;2.Instituto de Física,Universidade Federal de Uberlandia,Uberlandia,Brazil;3.COPPE, Programa de Engenharia Metalúrgica e de Materiais, UFRJ,Rio de Janeiro,Brazil |
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| Abstract: | Quality control of fuel-related properties of biodiesel, such as thermal stability, is needed to obtain consistent engine
performance by fuel users, since biodiesel is susceptible to auto-oxidation when exposed to air, light, and temperature during
storage. In this work two pure standard reference materials of biodiesels produced from soy oil and animal feedstocks were
studied. Differential scanning calorimetry and thermogravimetry measurements were performed and the analysis of the results
revealed small temperature variations in the thermal events among the two standards, these differences are due mainly to their
chemical composition, been highly influenced by the amounts of unsaturated esters. |
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