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超额吉布斯自由能-状态方程模型的研究进展

兰雪 夏力 项曙光

化工进展Issue(2):304-308,352,6.
化工进展Issue(2):304-308,352,6.DOI:10.3969/j.issn.1000-6613.2014.02.006

超额吉布斯自由能-状态方程模型的研究进展

Research progress of GE-EOS models

兰雪 1夏力 1项曙光1

作者信息

  • 1. 青岛科技大学炼油化工高新技术研究所,山东 青岛 266042
  • 折叠

摘要

Abstract

The GE-EOS model is a new idea to calculate and predict the phase equilibria with respect to the traditional methods of equation of states and activity coefficient models. The GE-EOS models are classified based on different reference states. This paper gives a summary of advantages and disadvantages of the classical models. The Huron-Vidal mixing rule,which is the first GE-EOS model, needs to refit the parameters of activity coefficient models. The Wong-Sandler mixing rule introduces the second virial coefficient,and has a good theoretical basis. The MHV1 and MHV2 mixing rules can use existing parameters of activity coefficient models directly. The LCVM type mixing rules eliminate the difference of combinatorial terms between the equation of state and activity coefficient model,so that they have excellent performance to predict phase equilibria of asymmetric system. There are three methods to improve the GE-EOS models,which are improving the equation of states,amending the activity coefficient models and expanding the paremeter tables. In order to meet the needs of application,GE-EOS models for asymmetric system will be an important direction.

关键词

GE-EoS模型/混合规则/相平衡/状态方程/活度系数模型

Key words

GE-EOS models/mixing rules/phase equilibria/equation of state/activity coefficient models

分类

化学化工

引用本文复制引用

兰雪,夏力,项曙光..超额吉布斯自由能-状态方程模型的研究进展[J].化工进展,2014,(2):304-308,352,6.

基金项目

国家自然科学基金项目(21176127)。 ()

化工进展

OA北大核心CSCDCSTPCD

1000-6613

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