Study of FAME model systems: Database and evaluation of predicting models for biodiesel physical properties

Author(s)

Florido, Priscila M. ^[1] ; Visioli, Paola C. F. ^[1] ; Pinto, Camila N. ^[1] ; Goncalves, Cintia B. ^[1]

Affiliation

^[1] Univ Sao Paulo, Fac Zootecnia & Engn Alimentos, Dept Food Engn, Separat Engn Lab, POB 23, BR-13635900 Pirassununga, SP - Brazil

• Document type: Journal article
• Source: RENEWABLE ENERGY; v. 151, p. 837-845, MAY 2020.
• Web of Science Citations: 0

Abstract

The present paper reports a viscosity and density unpublished database of systems formed for fatty acid methyl esters (FAMEs), leading to 426 experimental data points of each property. Kay's mixing rule and Grunberg-Nissan equation were used to estimate data and the group contribution models GC-VOL and GC-UNIMOD were used to predict density and viscosity, respectively. For surface tension, parameters of a Wilson modified equation were adjusted and tested in systems with composition similar to biodiesel. Density estimations resulted in global average relative deviations (ARD) of 0.02%, 0.07% and 0.15% for Kay's mixing rule weighted in mass and molar fractions, and GC-VOL model, respectively. For viscosities, GC-UNIMOD was the most accurate model with global ARD of 5.17%. The surface tension prediction resulted in global ARD minor than 7.00%. These results are an important tool to improve the biodiesel production, its modeling and simulation. (C) 2019 Elsevier Ltd. All rights reserved. (AU)

• FAPESP's process: 18/21558-3 - NTERFACIAL TENSION IN LIQUID-LIQUID SYSTEMS OF INTEREST FOR THE INDUSTRY OF EDIBLE VEGETABLE OILS AND BIOFUELS
• Grantee: Cintia Bernardo Gonçalves
• Support type: Regular Research Grants
• FAPESP's process: 14/21252-0 - Equilibrium and production processes of biofuels and bioproducts
• Grantee: Antonio José de Almeida Meirelles
• Support type: Research Projects - Thematic Grants
• FAPESP's process: 14/09757-0 - Physical properties of systems of interest to the oil industry and biodiesel production: determination of experimental data, modeling and prediction
• Grantee: Priscila Missano Florido
• Support type: Scholarships in Brazil - Doctorate
• FAPESP's process: 15/23372-6 - Surface tension of fatty systems of interest for edible vegetable oils and biodiesel industry: experimental determination and modeling
• Grantee: Paola de Cássia Franco Visioli
• Support type: Scholarships in Brazil - Scientific Initiation