Phase equilibria of carbon dioxide+1-nonanol system at high pressures

被引：29

作者：

Secuianu, Catinca ^{[1
]}

Feroiu, Viorel ^{[1
]}

Geana, Dan ^{[1
]}

机构：

[1] Univ Politehn Bucuresti, Dept Appl Phys Chem & Electrochem, Bucharest 011061, Romania

来源：

JOURNAL OF SUPERCRITICAL FLUIDS | 2010年 / 55卷 / 02期

关键词：

Phase equilibrium; Carbon dioxide; 1-Nonanol; High-pressures; SRK; VAPOR-LIQUID-EQUILIBRIA; EQUATION-OF-STATE; BINARY INTERACTION PARAMETERS; DIOXIDE PLUS METHANOL; CUBIC EQUATIONS; MIXING RULES; THERMODYNAMIC PROPERTIES; ACTIVITY-COEFFICIENTS; INFINITE DILUTION; CRITICAL-POINTS;

D O I：

10.1016/j.supflu.2010.09.018

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：

Vapor-liquid-equilibria (VLE) and vapor-liquid-liquid equilibria (VLLE) data for the carbon dioxide + 1-nonanol system were measured at 303.15, 308.15, 313.15, 333.15, and 353.15 K. Phase behavior measurements were made in a high-pressure visual cell with variable volume, based on the static-analytic method. The pressure range under investigation was between 1.15 and 103.3 bar. The Soave-Redlich-Kwong (SRK) equation of state (EOS) coupled with both classical van der Waals and a Gibbs excess energy (G(E)) mixing rules was used in semi-predictive approaches, in order to represent the complex phase behavior (critical curve, liquid-liquid-vapor (LLV) line, isothermal VLE, LLE, and VLLE) of the system. The topology of phase behavior is correctly predicted. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：653 / 661

页数：9

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