A method for incorporating excess Gibbs energy models in equations of state
TL;DR: In this paper, a procedure for incorporating information from an excess Gibbs energy model into an equation of state is described, where the gE model is used to define mixing rules for an equation-of-state mixture parameter.
About: This article is published in Fluid Phase Equilibria.The article was published on 1990-10-01. It has received 190 citations till now. The article focuses on the topics: Gibbs–Helmholtz equation & Gibbs–Duhem equation.
Citations
More filters
TL;DR: A group contribution equation of state called PSRK (Predictive Soave-Redlich-Kwong) is proposed in this article to predict vapor-uquid-equilibria (VLB) for a large number of systems without introducing new model parameters.
636 citations
TL;DR: In this paper, a new explicit mixing rule for a cubic equation of state has been developed, which enables direct incorporation of parameters from existing g E correlations, such as the Wilson equation, the NRTL equation or the UNIFAC equation.
421 citations
TL;DR: Boukouvalas et al. as discussed by the authors developed a new mixing rule, a linear combination of the Vidal and Michelsen rules, for the attractive term parameter in cubic equations of state (EoS) has been developed, coupled with a translated and modified Peng-Robinson EoS and the original UNIFAC, which leads to the LCVM model which provides successful prediction of vapor-liquid equilibria of nonpolar and polar systems at low and high pressures.
239 citations
TL;DR: The Peng and Robinson equation of state (PR EoS) has become one of the most useful and successfully applied models for thermodynamic and volumetric calculations in both industrial and academic fields as mentioned in this paper.
232 citations
TL;DR: In this article, a new group contribution method is proposed using the statistical associating fluid theory (SAFT) equation of state (EOS), in order to describe the thermodynamic properties of hydrocarbon series.
170 citations
References
More filters
TL;DR: In this paper, the attractive pressure term of the semi-empirical van der Waals equation has been modified for predicting the vapor pressure and volumetric behavior of singie-component systems.
Abstract: The development of a new two-constant equation of state in which the attractive pressure term of the semiempirical van der Waals equation has been modified is outlined. Examples of the use of the equation for predicting the vapor pressure and volumetric behavior of singie-component systems, and the phase behavior and volumetric behavior of binary, ternary, and multicomponent systems are given. The proposed equation combines simplicity and accuracy. It performs as well as or better than the Soave-Redlich-Kwong equation in all cases tested and shows its greatest advantages in the prediction of liquid phase densities.
10,520 citations
Snam1
TL;DR: In this article, a modified Redlich-Kwong equation of state is proposed, which can be extended successfully to multicomponent-VLE calculations for mixtures of nonpolar substances, with the exclusion of carbon dioxide.
5,318 citations
TL;DR: Huron and Vidal as mentioned in this paper proposed a new mixing rule in simple equations of state for representing vapour-liquid equilibria of strongly non-ideal mixtures, which can be reduced to the classical quadratic rule for some easily predicted values of the interaction energies.
893 citations
160 citations
98 citations