关键词: GE-EoS模型, 混合规则, 相平衡, 状态方程, 活度系数模型

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.

Key words: GE-EOS models, mixing rules, phase equilibria, equation of state, activity coefficient models