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Journal of Thermal Analysis and Calorimetry
Authors: Rosiane M. C. Farias, Marta M. Conceição, Roberlúcia A. Candeia, Marta C. D. Silva, Valter J. Fernandes Jr., and Antonio G. Souza

Abstract

The diversity of raw materials and technological routes employed in the biodiesel production has resulted in products with different chemical properties. This non-uniformity in the biodiesel composition may influence to the fuel quality. The aim of this study was to evaluate biodiesel blends of passion fruit and castor oil in different proportions and their thermal stability. Biodiesel blends of passion fruit and castor oil presented parameters in the standards of the Petroleum, Natural Gas and Biofuels National Agency. The TG curves indicated that castor oil biodiesel was more stable. Passion fruit biodiesel has a high content of oleic and linoleic acids, which are more susceptible to oxidation. Biodiesel blend of passion fruit and castor oil 1:1 increased the thermal stability in relation to passion fruit biodiesel. Biodiesel blend of passion fruit and castor oil 1:2 presented higher thermal stability, because castor oil has a high content of ricinoleic acid.

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Journal of Thermal Analysis and Calorimetry
Authors: J. C. O. Santos, M. G. O. Santos, J. P. Dantas, Marta M. Conceição, P. F. Athaide-Filho, and A. G. Souza
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Journal of Thermal Analysis and Calorimetry
Authors: Marta C. D. Silva, J. R. Botelho, Marta M. Conceiçăo, B. F. Lira, Monyque A. Coutinho, A. F. Dias, A. G. Souza, and P. F. A. Filho
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Thermal analysis in sustainable development

Thermoanalytical study of faveleira seeds (Cnidoscolus quercifolius)

Journal of Thermal Analysis and Calorimetry
Authors: J. C. O. Santos, J. P. Dantas, C. A. Medeiros, P. F. Athaíde-Filho, Marta M. Conceiçăo, J. R. Santos Jr., and A. G. Souza
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