Prediction of Liquid−Liquid Equilibrium for Systems of Vegetable Oils, Fatty Acids, and Ethanol

Batista, Eduardo Augusto Caldas; Monnerat, Sandra Mourão; Stragevitch, Luiz; Pina, Carla Garcia; Gonçalves, Cintia B.; Meirelles, Antônio J. A.

doi:10.1021/je9900169

Cited by 52 publications

(50 citation statements)

References 6 publications

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“…For both reasons, some fatty acids (myristic, palmitoleic, arachidic, erucic) that appear in Table 1 do not appear explicitly in Table 2. A similar procedure has been employed by Batista et al (12,18) for estimating the compositions of corn and canola oils. Such compositions were used by the authors in the correlation and prediction of liquid-liquid equilibrium data for systems that contained edible oils, fatty acids, and short-chain alcohols.…”

Section: Methodsmentioning

confidence: 99%

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Viscosity prediction for fatty systems

Rabelo¹,

Batista²,

Cavaleri³

et al. 2000

J Americ Oil Chem Soc

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Viscosity data have been measured as a function of temperature for two pure polyunsaturated fatty compounds (linoleic acid and trilinolein), for two multicomponent fatty systems, for a commercial-grade oleic acid (approximately 80% pure), and for canola oil. The measurements were performed in Cannon Fenske glass capillary kinematic viscometers. The contents of a large data bank, containing viscosity data for saturated, monounsaturated, and polyunsaturated pure fatty substances, were correlated by an equation based on the number of carbon atoms and double bonds. By using this equation for pure compounds and the UNIMOD group contribution method for mixtures, the viscosity data for model fatty systems, commercial oleic acid, and canola oil were predicted. The good results obtained in the present work indicate that this approach can be a valuable tool for designing or evaluating chemical process equipment for the oil industry.

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Section: Methodsmentioning

confidence: 99%

“…Predictive methods are not often applied for estimating viscosities of fatty mixtures, although there are some successful examples of predictive methods used for calculating other physicochemical properties, such as densities of edible oils (8) and phase equilibria of fatty mixtures (9)(10)(11)(12).…”

mentioning

confidence: 99%

Viscosity prediction for fatty systems

Rabelo¹,

Batista²,

Cavaleri³

et al. 2000

J Americ Oil Chem Soc

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“…Much work has been done on estimating physicochemical properties [9][10][11] and phase equilibria [12][13][14][15][16][17][18] of fatty mixtures with success. In most approaches, the widely known concept of group contributions is used.…”

Section: Introductionmentioning

confidence: 99%

Predicting vapor–liquid equilibria of fatty systems

Ceriani

Meirelles

2004

Fluid Phase Equilibria

100

130

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“…Batista et al [57] readjusted some group interaction parameters for both models using the experimental data available for systems composed by triolein, oleic acid or stearic acid and ethanol. Batista et al [57] readjusted some group interaction parameters for both models using the experimental data available for systems composed by triolein, oleic acid or stearic acid and ethanol.…”

Section: Phase Equilibriummentioning

confidence: 99%

Deacidification of Vegetable Oils by Solvent Extraction

Rodrigues¹,

Gonçalves²,

Batista³

et al. 2007

ENG

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The refining of edible oils requires a series of purification steps, with the most important being the decrease of the free fatty acid level of the crude oil. This step is very important for the quality of the final product and has a major impact on the economic feasibility of the whole process. Several techniques, alternative to the conventional caustic or steam distillation methods, are suggested in the literature, such as supercritical extraction, membrane technology and solvent extraction. In the present paper we discuss the main aspects related to the solvent extraction technique, coupled or not with the conventional methods. The reviewed patents indicate various advantages of a purification process based on the selective extraction of free fatty acids using short chain alcohols. Its technical feasibility is due to the differences in solubility of free fatty acids and neutral oil in the proposed solvents. This alternative technique does not generate waste products and can preserve nutraceutical compounds in the refined oil.

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Prediction of Liquid−Liquid Equilibrium for Systems of Vegetable Oils, Fatty Acids, and Ethanol

Cited by 52 publications

References 6 publications

Viscosity prediction for fatty systems

Viscosity prediction for fatty systems

Predicting vapor–liquid equilibria of fatty systems

Deacidification of Vegetable Oils by Solvent Extraction

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