STUDY OF SOLID-LIQUID EQUILIBRIUM IN MIXTURES OF ETHYL ESTERS

• Grant number: 10/18355-1
• Support Opportunities: Scholarships in Brazil - Post-Doctoral
• Start date: June 01, 2011
• End date: May 31, 2014
• Field of knowledge: Engineering - Chemical Engineering
• Principal Investigator: Antonio José de Almeida Meirelles
• Grantee: Maria Dolores Robustillo Fuentes
• Host Institution: Escola Politécnica (EP). Universidade de São Paulo (USP). São Paulo , SP, Brazil

Abstract

Biodiesel is a liquid mixture of fatty acid esters obtained by reaction between fats or oils and alcohol in an alkaline medium, whose production has been stimulated in recent years due to economic reasons and environmental legislation. The cost of the raw materials and the competition with food for oils or soils are the main limitations to a more widespread use of biodiesel. The use of waste oil or cheap and non-edible oils and fats can help minimize this problem, but the formulation of a biodiesel must conform to a number of standards before approval for commercialization. The phase behavior of biodiesel depends on the oils or fats used in its production and the alcohol from which it is formed. At low temperatures, solid phases or a second liquid phase can be formed, and it may in some cases be an impediment to the use of biodiesel considering the specific rules of the National Petroleum Agency. This fact may be particularly critical in the biodiesel produced from ethyl alcohol, process little used or studied, although promising in the Brazilian case.This project aims to carry out a study of solid-liquid equilibrium of ethyl esters of fatty acids, pure or blended, in order to understand the phase behavior of biodiesel obtained from the transesterification reaction of fats and oils with ethyl alcohol and the development of different correlations to predict solid phases formation at different conditions. The project includes obtaining experimental data of solid-liquid equilibrium and correlation of such data by appropriate thermodynamic models.

Scientific publications

(11)

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

BRANCO ALMEIDA BESSA, LARISSA CASTELLO; ROBUSTILLO, MARIA DOLORES; DE ALMEIDA MEIRELLES, ANTONIO JOSE; PESSOA FILHO, PEDRO DE ALCANTARA. (Solid plus liquid) equilibrium of binary mixtures containing ethyl esters and p-xylene by differential scanning calorimetry. JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY, v. 137, n. 6, p. 2017-2028, SEP 2019. (14/21252-0, 10/18355-1, 18/06956-2)

ROBUSTILLO, MARIA DOLORES; DE ALMEIDA MEIRELLES, ANTONIO JOSE; PESSOA FILHO, PEDRO DE ALCANTARA. Solid-liquid equilibrium of binary and ternary systems formed by ethyl laurate, ethyl palmitate and dodecylcylohexane: Experimental data and thermodynamic modeling. Fluid Phase Equilibria, v. 409, p. 157-170, FEB 15 2016. (10/18355-1, 14/17585-4, 08/56258-8)

ROBUSTILLO, MARIA DOLORES; BARBOSA, DEISE FERNANDA; DE ALMEIDA MEIRELLES, ANTONIO JOSE; PESSOA FILHO, PEDRO DE ALCANTARA. Solid-liquid equilibrium in ternary mixtures of ethyl laurate, ethyl palmitate and ethyl myristate. Fluid Phase Equilibria, v. 361, p. 188-199, JAN 15 2014. (10/18355-1, 08/56258-8)

ROBUSTILLO, MARIA DOLORES; BARBOSA, DEISE FERNANDA; DE ALMEIDA MEIRELLES, ANTONIO JOSE; PESSOA FILHO, PEDRO DE ALCANTARA. Solid-liquid equilibrium of binary and ternary mixtures containing ethyl oleate, ethyl myristate and ethyl stearate. Fluid Phase Equilibria, v. 370, p. 85-94, MAY 25 2014. (10/18355-1, 08/56258-8)

ROBUSTILLO, MARIA DOLORES; BARBOSA, DEISE FERNANDA; DE ALMEIDA MEIRELLES, ANTONIO JOSE; PESSOA FILHO, PEDRO DE ALCANTARA. Solid-liquid equilibrium in ternary mixtures of ethyl laurate, ethyl palmitate and ethyl stearate. Fluid Phase Equilibria, v. 358, p. 272-281, NOV 25 2013. (10/18355-1, 08/56258-8)

ROBUSTILLO, MARIA DOLORES; BARBOSA, DEISE FERNANDA; DE ALMEIDA MEIRELLES, ANTONIO JOSE; PESSOA FILHO, PEDRO DE ALCANTARA. Solid-liquid equilibrium in ternary mixtures of ethyl oleate, ethyl laurate and ethyl palmitate. Fluid Phase Equilibria, v. 339, p. 58-66, FEB 15 2013. (10/18355-1, 08/56258-8)

BRANCO ALMEIDA BESSA, LARISSA CASTELLO; ROBUSTILLO, MARIA DOLORES; MARQUES, BIANCA CRISTINE; TADINI, CARMEN CECILIA; PESSOA FILHO, PEDRO DE ALCANTARA. Experimental determination and thermodynamic modeling of solid-liquid equilibrium of binary systems containing representative compounds of biodiesel and fossil fuels: Ethyl esters and n-dodecane. FUEL, v. 237, p. 1132-1140, FEB 1 2019. (16/08566-1, 18/06956-2, 10/18355-1, 14/21252-0, 13/07914-8)

BRANCO ALMEIDA BESSA, LARISSA CASTELLO; ROBUSTILLO, MARIA DOLORES; DA SILVA, ERICA GONNA; TADINI, CARMEN CECILIA; DE ALMEIDA MEIRELLES, ANTONIO JOSE; PESSOA FILHO, PEDRO DE ALCANTARA. Influence of Additives (Isoamyl Laurate or Isoamyl Nonanoate) in the Solid-Liquid Equilibrium of Fatty Acid Ethyl Esters. JOURNAL OF CHEMICAL AND ENGINEERING DATA, v. 64, n. 5, p. 13-pg., 2019-05-01. (16/08566-1, 18/06956-2, 14/21252-0, 13/07914-8, 10/18355-1)

BRANCO ALMEIDA BESSA, LARISSA CASTELLO; ROBUSTILLO, MARIA DOLORES; DA SILVA, ERICA GONNA; TADINI, CARMEN CECILIA; DE ALMEIDA MEIRELLES, ANTONIO JOSE; PESSOA FILHO, PEDRO DE ALCANTARA. Influence of Additives (Isoamyl Laurate or Isoamyl Nonanoate) in the Solid-Liquid Equilibrium of Fatty Acid Ethyl Esters. JOURNAL OF CHEMICAL AND ENGINEERING DATA, v. 64, n. 5, SI, p. 2062-2074, MAY 2019. (10/18355-1, 18/06956-2, 14/21252-0, 13/07914-8, 16/08566-1)

ROBUSTILLO, MARIA DOLORES; BRANCO ALMEIDA BESSA, LARISSA CASTELLO; PESSOA FILHO, PEDRO DE ALCANTARA. Solid-liquid equilibrium of binary and ternary systems formed by ethyl laurate, ethyl palmitate and decylbenzene. Fluid Phase Equilibria, v. 530, FEB 15 2021. (10/18355-1, 14/21252-0, 18/06956-2)

ROBUSTILLO, MARIA DOLORES; BRANCO ALMEIDA BESSA, LARISSA CASTELLO; DE ALMEIDA MEIRELLES, ANTONIO JOSE; PESSOA FILHO, PEDRO DE ALCANTARA. Experimental data and thermodynamic modeling of solid-liquid equilibrium of binary systems containing representative compounds of biodiesel and fossil fuels: Ethyl esters and n-hexadecane. FUEL, v. 220, p. 303-317, MAY 15 2018. (10/18355-1, 14/21252-0, 08/56258-8)