Journal of Thermal Analysis and Calorimetry, ( ISI ), Volume (137), No (2), Year (2019-7) , Pages (679-688)

Title : ( Determination and measurement of solid–liquid equilibrium for binary fatty acid mixtures based on NRTL and UNIQUAC activity models )

Authors: SAYED MOHAMMADREZA MIRPOURIAN , MohammadHassan Vakili , Seyed Hossein Noie Baghban , Pejman Roohi ,

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Abstract

The estimation of solid–liquid phase equilibrium is important for the design, development, and operation of many industrial processes because of application in many manufacturing fields such as cosmetic, pharmaceutic, and biotechnology industries. In this work, we measured solid–liquid phase equilibrium of six fatty acid binary mixtures using the DSC technique and developed thermodynamic approaches for binary fatty acid mixtures to estimate melting temperatures as a function of mole fraction in solid–liquid phase equilibrium. Derivation of NRTL and UNIQUAC activity models was developed to predict melting temperatures and latent heat to achieve eutectic points of undecylic acid, pentadecylic acid, margaric acid, and stearic acid six pairwise binary mixtures. The fatty acids eutectic mixtures are appropriate for heat water systems, phase clothes, concrete, and other similar applications. The results showed low deviations from experimental data measured in this study.

Keywords

, Fatty acid, Wilson mode, l Melting temperature, Eutectic point
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@article{paperid:1074907,
author = {MIRPOURIAN, SAYED MOHAMMADREZA and MohammadHassan Vakili and Noie Baghban, Seyed Hossein and Pejman Roohi},
title = {Determination and measurement of solid–liquid equilibrium for binary fatty acid mixtures based on NRTL and UNIQUAC activity models},
journal = {Journal of Thermal Analysis and Calorimetry},
year = {2019},
volume = {137},
number = {2},
month = {July},
issn = {1388-6150},
pages = {679--688},
numpages = {9},
keywords = {Fatty acid; Wilson mode;l Melting temperature; Eutectic point},
}

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%0 Journal Article
%T Determination and measurement of solid–liquid equilibrium for binary fatty acid mixtures based on NRTL and UNIQUAC activity models
%A MIRPOURIAN, SAYED MOHAMMADREZA
%A MohammadHassan Vakili
%A Noie Baghban, Seyed Hossein
%A Pejman Roohi
%J Journal of Thermal Analysis and Calorimetry
%@ 1388-6150
%D 2019

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