Solid-liquid equilibrium of binary and ternary systems formed by ethyl laurate, ethyl palmitate and n-decane: Experimental data and thermodynamic modeling
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2016
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Fluid Phase Equilibria
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The solideliquid equilibrium phase diagrams of binary and ternary mixtures formed by n-decane and the
fatty acid ethyl esters ethyl laurate and ethyl palmitate were studied through differential scanning
calorimetry (DSC). Phase change properties of polymorphs were obtained by resolving the thermograms
into the corresponding overlapping peaks through a fitting analysis with a Gaussian function. The binary
systems show immiscibility in solid phase. The system formed by ethyl laurate and n-decane presents
two peritectic transformations, which were also observed in the ternary phase diagram. Equilibrium data
were thermodynamically modeled using different models for liquid phase non-ideality and considering
different polymorphs in solid phase. The results of modeling are in good agreement with the eutectic
behavior of the system formed by ethyl palmitate and n-decane. However, higher discrepancies were
observed if no peritectic behavior for the binary system formed by ethyl laurate and n-decane is
considered. The results obtained in this work constitute another step forward to enhance the understanding and description of the complex behavior of biodiesel/diesel mixtures at low temperatures.
Como referenciar
ROBUSTILLO, MARIA D.; PARRA, DUCLERC F.; MEIRELLES, ANTONIO J. de A.; PESSOA FILHO, PEDRO de A. Solid-liquid equilibrium of binary and ternary systems formed by ethyl laurate, ethyl palmitate and n-decane: Experimental data and thermodynamic modeling. Fluid Phase Equilibria, v. 426, p. 83-94, 2016. DOI: 10.1016/j.fluid.2016.01.044. Disponível em: http://repositorio.ipen.br/handle/123456789/25818. Acesso em: 18 Feb 2025.
Esta referência é gerada automaticamente de acordo com as normas do estilo IPEN/SP (ABNT NBR 6023) e recomenda-se uma verificação final e ajustes caso necessário.