Critical points and phase behavior of toluene-CO2 and toluene-H2-CO2 mixture in CO2-rich region

被引：48

作者：

Zhang, HF ^{[1
]}

Liu, ZM ^{[1
]}

Han, BX ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst Chem, Beijing 100080, Peoples R China

来源：

JOURNAL OF SUPERCRITICAL FLUIDS | 2000年 / 18卷 / 03期

基金：

中国国家自然科学基金;

关键词：

apparatus; critical points; vapor-liquid equilibria; toluene; CO2; H-2;

D O I：

10.1016/S0896-8446(00)00081-4

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：

A simple apparatus for determining the critical points and vapor/liquid equilibrium curves is described. The apparatus was used to investigate pure CO2, the binary system toluene-CO2, and the ternary mixture toluene-H-2-CO2. The critical points were obtained on the basis of both critical opalescence and isothermal compressibility. The critical temperature and critical pressure of CO2 determined by this method agreed well with the literature values. The critical points of the binary and ternary mixtures were determined in CO2-rich region. Peng-Robinson equation of state was used to predict critical points and the results agreed reasonably with the experimental data. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：185 / 192

页数：8

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