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首页> 外文期刊>Fluid Phase Equilibria >Estimation of VLE phase compositions of binary systems containing gaseous components, from the feed composition and the cell volume
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Estimation of VLE phase compositions of binary systems containing gaseous components, from the feed composition and the cell volume

机译:从进料组成和细胞体积估算含气态成分的二元系统的VLE相组成

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摘要

A procedure is presented for estimating the composition of the vapor and liquid phases formed by a given binary mixture in an equilibrium cell, at given temperature and pressure, so that the need of chromatographic analyses is overcome. It applies to any kind of components, including gaseous and/or polar ones. The method is based on a cubic equation of state and the execution of flash calculations, with the constraint of reproducing the total cell volume. It requires for each component the critical constants and the liquid density and vapor pressure, or, if the component is gaseous, its acentric factor only. Experimental data was used to optimize the accuracy of the method. Experimental phase compositions, mainly of the liquid phase, are normally reproduced within 1%. (C) 2001 Elsevier Science B.V. All rights reserved. [References: 26]
机译:提出了一种在给定的温度和压力下估算平衡池中给定的二元混合物形成的汽相和液相的组成的程序,从而克服了色谱分析的需要。它适用于任何种类的组件,包括气态和/或极性组件。该方法基于状态立方方程和闪存计算的执行,并具有复制总电池体积的约束。它要求每个组分的临界常数以及液体密度和蒸气压,或者,如果组分是气态,则仅要求其离心系数。实验数据用于优化该方法的准确性。通常为1%的实验相组成,主要是液相。 (C)2001 Elsevier Science B.V.保留所有权利。 [参考:26]

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