Solubilities of 10-undecenoic acid and geraniol in supercritical carbon dioxide

被引：37

作者：

Lamba, Neha ^{[1
]}

Narayan, Ram C. ^{[1
]}

Modak, Jayant ^{[1
]}

Madras, Giridhar ^{[1
]}

机构：

[1] Indian Inst Sci, Dept Chem Engn, Bangalore 560012, Karnataka, India

来源：

JOURNAL OF SUPERCRITICAL FLUIDS | 2016年 / 107卷

关键词：

Solubilities; Empirical models; Association model; Akaike information criteria; FLUID EXTRACTION; ENZYMATIC-SYNTHESIS; UNDECYLENIC ACID; PHASE-EQUILIBRIA; FATTY-ACIDS; ESTERS; SOLIDS; DERIVATIVES; OILS; FRACTIONATION;

D O I：

10.1016/j.supflu.2015.09.026

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The solubilities of 10-undecenoic acid and geraniol in supercritical carbon dioxide were measured at 308, 313,323 and 333K, and at pressures of 10-18 MPa. Solubilities (in mole fraction),ranged from 0.4 x 10(-3) to 17.4 x 10(-3) for 10-undecenoic acid and 2.7 x 10(-3) to 25 x 10(-3) for geraniol, respectively. The AARD was around 11% and 5% for these models for 10-undecenoic acid and geraniol, respectively. The solubilities of both compounds showed retrograde behavior wherein the solubilities decrease with temperature at isobaric conditions. The solubility of geraniol was higher than 10-undecenoic acid at all investigated temperatures and pressures. The data were found to be self consistent based on the Mendez-Santiago model. New models based on association theory using van Laar and Margules activity coefficient models for solute in liquid phase were derived, and used to correlate the solubilities. (C) 2015 Elsevier B.V. All rights reserved.

引用

页码：384 / 391

页数：8

共 50 条

[1] SUPERCRITICAL FLUID EXTRACTION WITH CARBON-DIOXIDE AND ETHYLENE [J].