Brazilian Journal of Chemical Engineering | |
Experimental density data and excess molar volumes of coconut biodiesel + n-hexadecane and coconut biodiesel + diesel at different temperatures | |
F. M. R. Mesquita1  F. X. Feitosa1  R. S. De Santiago-aguiar1  H. B. De Sant'ana1  | |
[1] ,Universidade Federal do Ceará Departamento de Engenharia Química Centro de TecnologiaFortaleza CE ,Brazil | |
关键词: Density; Excess volume; Coconut biodiesel; Diesel; n-bexadecane; | |
DOI : 10.1590/0104-6632.20140312s00002600 | |
来源: SciELO | |
【 摘 要 】
The density of the pure component (n-hexadecane), pure pseudo-components (coconut biodiesel and diesel) and pseudo-binary mixtures of coconut biodiesel with n-hexadecane (or + diesel) were measured at temperatures 293.15, 313.15, 333.15, 353.15 and 373.15 K and atmospheric pressure, over the entire composition range (mole fractions from 0.1 to 0.9, with a step de 0.1). Densities were determined using an Anton Paar SVM 3000 viscodensimeter. Experimental density values decreased with the increase of the temperature. The excess molar volumes of the pseudo-binary mixtures were calculated by using the experimental values of density. Excess molar volumes were correlated with the Redlich-Kister polynomial expansions. Excess molar volumes show positive and negative values in the two systems studied. Excess partial volumes at infinite dilution were calculated for coconut biodiesel, n-hexadecane and diesel in the mixtures studied.
【 授权许可】
CC BY
All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License
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