Phase behavior of castor oil in compressed propane and n-butane

被引：34

作者：

Lanza, M

Ndiaye, PM

Tavares, FW

Oliveira, D

Dariva, C

Oliveira, JV

机构：

[1] URI, Dept Food Engn, BR-99700000 Erechim, RS, Brazil

[2] Univ Fed Rio de Janeiro, Escola Quim, BR-21949900 Rio De Janeiro, Brazil

来源：

JOURNAL OF SUPERCRITICAL FLUIDS | 2005年 / 34卷 / 02期

关键词：

phase equilibrium behavior; triglycerides; castor oil; U-LCST; high-pressure phase equilibria;

D O I：

10.1016/j.supflu.2004.11.017

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：

This work is focused on the investigation of the phase behavior of binary systems formed by castor oil in compressed propane and n-butane. The experiments were conducted in a high-pressure variable-volume view cell in the temperature range of 30-150 degrees C, for solvent overall composition ranging from 15 to 99 wt.% and pressures up to 240 bar. Results indicate the existence of a complex phase behavior for both systems investigated, with liquid-liquid, vapor-liquid and vapor-liquid-liquid phase transitions. The liquid-liquid phase transition presents upper and lower critical solution temperatures. (c) 2004 Elsevier B.V. All rights reserved.

引用

页码：215 / 221

页数：7

共 32 条

[1] LIPASE-CATALYZED INTERESTERIFICATION OF TRIGLYCERIDE WITH SUPERCRITICAL CARBON-DIOXIDE EXTRACTION [J].