Liquid–liquid equilibria for ternary systems containing ethyl esters, ethanol and glycerol at 323.15 and 353.15K

LLE for the systems ethyl palmitate (palmitic acid)(1)+ethanol(2)+glycerol (water)(3)

“…In this sense, although there is a growing industrial interest in the separation processes related to the production of components of fatty acid ethyl esters biodiesel, there are few experimental data regarding the ethyl ester, fatty acid, ethanol, water and/or glycerol available in the open literature [1,[7][8][9][10][11][12][13][14][15][16][17][18][19]. Most [17,18] and ethyl palmitate + ethanol + glycerol [19]. In this context, new measurements of liquid-liquid equilibrium for the following three different ternary systems ethyl palmitate(1) + ethanol(2) + water(3), ethyl palmitate(1) + ethanol(2) + glycerol (3), and palmitic acid(1) + ethanol + water(3) were performed at different temperatures and are presented in this work.…”

Liquid–Liquid Equilibrium for Systems Containing Epoxidized Oils, Formic Acid, and Water: Experimental and Modeling

“…This may make the incomplete separation of the oil–water phase, causing low values of K HCOOH . The esters of long‐branched chains are nonpolar compounds and hence formic acid is less soluble in Ep‐FAEtHE than in Ep‐FAME (Follegatti‐Romero et al, ). Moreover, the RCO of Ep‐FAEtHE and Ep‐FAME (Ep‐SBO) is calculated to be 87.08 and 81.51%, respectively.…”

Liquid–liquid equilibrium data and thermodynamic modeling for systems related to the production of ethyl esters of fatty acids from soybean soapstock acid oil

“…This information will be useful in the design of the purification stage, where the hot-water washing step can provide a low ethanol concentration in the biodiesel phase. Although many authors have produced LLE data for systems involving fatty acids, short chain alcohols, water and the corresponding esters [6][7][8][9][10][11][12][13]15,[23][24][25][27][28][29][30][31][32], our study presents a new set of experimental data regarding LLE obtained for mixtures containing fatty acids from soybean soapstock acid oil (FA-SSAO) and their corresponding esters (EE-SSAO). The experimental and theoretical thermodynamic data that we have obtained regarding mutual solubility and phase behavior of the reactants and products of the esterification reaction can be used in the modeling and optimization of a low-temperature enzyme-catalyzed esterification process.…”