Liquid-Liquid Equilibrium for Ethanolysis Systems of Fish Oil

被引：7
|
作者：
Bucio, S. L. [1 ]
Solaesa, A. G. [1 ]
Sanz, M. T. [1 ]
Beltran, S. [1 ]
Melgosa, R. [1 ]
机构：
[1] Univ Burgos, Dept Chem Engn, Burgos 09001, Spain
来源：
JOURNAL OF CHEMICAL AND ENGINEERING DATA | 2013年 / 58卷 / 11期
关键词：
TEMPERATURE; LIPASE;
D O I：
10.1021/je400573u
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
Enzymatic alcoholysis of fish oil can produce monoacylglycerols rich in polyunsaturated fatty acids at atmospheric pressure and low temperature. Biocatalysis in organic solvents helps to create a homogeneous reaction system for the reactants, ethanol and fish oil. This work presents liquid liquid equilibrium at two different temperatures (303.2 K and 323.2 K) and at atmospheric pressure for two solvent-systems in the ethanolysis of fish oil: ethanol + oil + tert-pentanol and ethanol + oil + hexane. Experimental solubility (binodal) curves were obtained by the cloud point method and tie-line composition was obtained by density and high-temperature gas chromatography. The consistency of experimental tie-line data was checked by using the Othmer-Tobias equation. The experimental liquid-liquid data were correlated satisfactorily by the nonrandom two liquid model for activity coefficient calculations.
引用
收藏
页码：3118 / 3124
页数：7
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