Vapor-liquid equilibria of carbon dioxide with linoleic acid, α-tocopherol and triolein at elevated pressures

被引：36

作者：

Chen, CC

Chang, CMJ

Yang, PW

机构：

[1] Natl Chung Hsing Univ, Dept Chem Engn, Taichung 402, Taiwan

[2] Taiwan Sugar Corp, Porduct Dev Dept, Taipei 102, Taiwan

来源：

FLUID PHASE EQUILIBRIA | 2000年 / 175卷 / 1-2期

关键词：

alpha-tocopherol; linoleic acid; VLE data; experimental method; liquid density; vapor density; supercritical fluid extraction;

D O I：

10.1016/S0378-3812(00)00442-8

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

In this work an apparatus is described with which VLE equilibrium data for CO2 + linoleicacid, CO2 + alpha -tocopherol, and CO2 + triolein over a wide range of pressures and temperatures are obtained. Liquid and vapor densities for these systems were separately measured using a system consisting of two vibrating tube densitometers. A P-x-y diagram of each system was determined at 313 K and 333 K, and pressures up to 24.21 MPa. Linoleic acid is the most soluble compound in CO2 at both temperatures and exhibits the greatest distribution coefficient. At constant temperature, the solubility of each compound in the vapor phase increased with increasing pressure. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：107 / 115

页数：9

共 5 条

[1] MEASUREMENT AND MODEL PREDICTION OF SOLUBILITIES OF PURE FATTY-ACIDS, PURE TRIGLYCERIDES, AND MIXTURES OF TRIGLYCERIDES IN SUPERCRITICAL CARBON-DIOXIDE [J].