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Type: Artigo
Title: Flash point prediction with UNIFAC type models of ethylic biodiesel and binary/ternary mixtures of FAEEs
Author: Nascimento, DéboraCosta do
Carareto, Natália Daniele Dorighello
Barbosa Neto, Antonio Marinho
Gerbaud, Vincent
Costa, Mariana Conceição da
Abstract: In order to guarantee safe handling of a combustible liquid, such as biodiesel, it is important to be aware of its Flash Point (FP). Thus, the present study focused on FP experimental measurement and thermodynamic correlation of binary and ternary mixtures of saturated or unsaturated fatty acid ethyl esters (FAEEs) as surrogates for biodiesel. FP of different types of ethylic biodiesel in terms of feedstock (canola, corn, cotton and soy oils) were also measured and compared with the predicted values. Experiments were carried out in agreement with the standard closed cup procedure ASTM D6450. Liaw’s model was applied to FP prediction, with liquid phase non-ideality description accounted for by UNIFAC group contribution models (Original UNIFAC, UNIFAC-Dortmund and UNIFAC-Bessa with revised parameters for fats). FP prediction accounting for non-ideality proved to be accurate, with some difference between the UNIFAC type models and Root Mean Square Deviations (RMSD) varying from 0.27 K to 3.95 K for binary and ternary mixtures
Subject: Biodiesel
Country: Reino Unido
Editor: Elsevier
Rights: Fechado
Identifier DOI: 10.1016/j.fuel.2020.118717
Date Issue: 2020
Appears in Collections:FEQ - Artigos e Outros Documentos

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