Abstract
In the past years, the oil and fat industry has been growing on a large scale, mostly due to the need of biodiesel production. Considering this fact, the understanding of thermophysical properties and phase equilibrium of the compounds found in this industry became crucial, that is, acylglycerols, fatty esters, alcohols. Therefore, this work aims to obtain liquid–vapor equilibrium data of the following mixtures: hexadecanol + octadecanol (1.73 kPa), hexadecanol + methyl myristate (1.72 kPa), monononanin + tributyrin (1.69 kPa), and dinonanoin + octacosane (1.70 kPa) by the differential scanning calorimetry technique. As expected, the system with two long-chain alcohols (hexadecanol + octadecanol) showed an ideal behavior. In contrast, the other systems presented nonideal behavior. Experimental data were effectively regressed by the UNIQUAC model. The pure component consistency test and the variation of Van Ness consistency test were applied to all systems. Activity coefficients were modeled using the Line...
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