Experimental density data and excess molar volumes of coconut biodiesel + n-hexadecane and coconut biodiesel + diesel at different temperatures

Brazilian Journal of Chemical Engineering

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