New analytic apparatus for experimental determination of vapor-liquid equilibria and saturation densities

被引：6

作者：

Galicia-Luna, Luis A. ^{[1
]}

Elizalde-Solis, Octavio ^{[2
]}

机构：

[1] Inst Politecn Nacl, Lab Termodinam, SEPI ESIQIE, UPALM, Mexico City 07738, DF, Mexico

[2] Inst Politecn Nacl, Dept Ingn Quim Petr, SEPI ESIQIE, UPALM, Mexico City 07738, DF, Mexico

来源：

FLUID PHASE EQUILIBRIA | 2010年 / 296卷 / 01期

关键词：

Saturated density; Densitometer; Vapor-liquid equilibria; PRESSURE PHASE-EQUILIBRIUM; EQUATION-OF-STATE; CARBON-DIOXIDE METHANOL; BINARY-SYSTEMS; THERMODYNAMIC PROPERTIES; EXCESS VOLUMES; PLUS ETHANOL; WELL FLUID; 283.65; K; MIXTURES;

D O I：

10.1016/j.fluid.2010.03.004

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

A new experimental apparatus for performing simultaneous determination of high-pressure vapor-liquid equilibria (VLE) and saturated densities was developed in this work. The experimental methodology was verified by measuring these properties for the carbon dioxide + 1-propanol and carbon dioxide + 2-propanol systems from 313 to 363 K. The apparatus is based on the static-analytic method for VLE determinations and was slightly modified by coupling a vibrating U-tube densitometer to obtain saturated densities for both vapor and liquid phases. VLE measurements agreed with previous literature data and were correlated with the Peng-Robinson equation of state coupled to the Wong-Sandler mixing rules. Saturation densities at temperatures above 313 K have not been published up to now. (c) 2010 Elsevier B.V. All rights reserved.

引用

页码：46 / 52

页数：7

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