Liquid-Liquid Equilibrium Study in Ternary Castor Oil Biodiesel plus Ethanol plus Glycerol and Quaternary Castor Oil Biodiesel plus Ethanol plus Glycerol plus NaOH Systems at (298.2 and 333.2) K

被引：22
作者：
Machado, Alex Barreto [1 ]
Ardila, Yurany Camacho [1 ]
de Oliveira, Leonardo Hadlich [1 ]
Aznar, Martin [1 ]
Wolf Maciel, Maria Regina [1 ]
机构：
[1] Univ Estadual Campinas, Sch Chem Engn, BR-13083852 Campinas, SP, Brazil
来源：
JOURNAL OF CHEMICAL AND ENGINEERING DATA | 2011年 / 56卷 / 05期
基金：
巴西圣保罗研究基金会;
关键词：
METHYL OLEATE; TRANSESTERIFICATION; PREDICTION;
D O I：
10.1021/je101235f
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
In this work, ternary liquid liquid equilibrium (LLE) data for the castor oil biodiesel (BIO-CO) + ethanol + glycerol and quaternary LLE data for biodiesel (BIO-CO) + ethanol + glycerol + NaOH systems at (298.2 and 333.2) K and atmospheric pressure (approximate to 95 kPa) were determined by gas chromatography. The influence of temperature and catalyst in the phase diagrams were studied. Ethanol partition coefficients and biodiesel selectivities were calculated. Results showed that ethanol distributed slightly more to the glycerol phase and that biodiesel solubilizes preferentially ethanol than glycerol. LLE experimental data were correlated with the NRTL model, presenting root-mean-square deviations < 1.3 %. Hand and Othmer-Tobias correlations were used to test the data quality, which presented R-2 > 0.98 for all systems.
引用
收藏
页码：2196 / 2201
页数：6
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