HIGH-PRESSURE PHASE-BEHAVIOR IN SYSTEMS CONTAINING CO2 AND HEAVIER COMPOUNDS WITH SIMILAR VAPOR-PRESSURES

被引：66

作者：

MOHAMED, RS

HOLDER, GD

机构：

[1] Univ of Pittsburgh, Pittsburgh, PA,, USA, Univ of Pittsburgh, Pittsburgh, PA, USA

来源：

FLUID PHASE EQUILIBRIA | 1987年 / 32卷 / 03期

关键词：

EQUATIONS OF STATE - MATHEMATICAL MODELS - THERMODYNAMIC PROPERTIES - Prediction - XYLENE - Separation;

D O I：

10.1016/0378-3812(87)85060-4

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The separation of the para and ortho isomers of xylene as well as the azeotropic mixture of butyl ether/o-xylene using carbon dioxide at high pressure was investigated. The phase behavior of carbon dioxide and each of these compounds along with the ternary systems; CO//2/p-xylene/o-xylene and CO//2/butyl ether/o-xylene were experimentally determined. Thermodynamic models using the Peng-Robinson equation of state were developed and better predictions of the bubble point pressures were obtained when the interaction parameter, delta //i//j, was allowed to vary with phase density.

引用

页码：295 / 317

页数：23

共 24 条

[1] STATISTICAL THERMODYNAMICS OF LIQUID-MIXTURES - NEW EXPRESSION FOR EXCESS GIBBS ENERGY OF PARTLY OR COMPLETELY MISCIBLE SYSTEMS [J].