Evaluation of the thermal stability of biodiesel blends of castor oil and passion fruit |
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| Authors: | Rosiane M C Farias Marta M Conceição Roberlúcia A Candeia Marta C D Silva Jr" target="_blank">Valter J FernandesJr Antonio G Souza |
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| Institution: | 1.Centro de Educa??o e Saúde,Universidade Federal de Campina Grande,Cuité,Brazil;2.Centro de Forma??o de Professores,Escola Técnica de Cajazeiras, UFCG,Cajazeiras,Brazil;3.Universidade Federal do Maranh?o, Campus Imperatriz,Imperatriz,Brazil;4.Universidade Federal do Rio Grande do Norte, LCL,Natal,Brazil;5.Universidade Federal da Paraíba, LACOM,Jo?o Pessoa,Brazil |
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| 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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