Journal ArticleDOI
High-pressure vapor-liquid equilibrium with a UNIFAC-based equation of state
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TLDR
In this paper, the ability of the mixing rules proposed by Michelsen to predict high-pressure phase equilibrium, when used in combination with the parameter table of modified UNIFAC, was investigated.Abstract:
Recent procedures developed by Heidemann (1990) and by Michelsen (1990a, b) enable us to formally incorporate excess Gibbs energy model parameters into a fully consistent equation of state, cith accurate reproduction of the behavior of the excess Gibbs energy model at atmospheric pressure.
This paper investigates the ability of the mixing rules proposed by Michelsen to predict high-pressure phase equilibrium, when used in combination with the parameter table of modified UNIFAC. Considering that a group contribution method is used for the excess Gibbs energy and that model parameters are extrapolated over a 200 K temperature interval, quite satisfactory results are obtained for the mixtures investigated.read more
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VLE calculation of carbon dioxide+n-alkanes binary mixtures with MHV2 mixing rule
TL;DR: In this paper, a modified MHV2 mixing rule was used for determining activity coefficient and excess Gibbs free energy in binary and asymetric systems, and the average absolute deviation percent (AAD%)s indicated that the error involved in the application of the MHV 2 mixing rule by optimized q1 and q2 is less than WS and PRSK in most cases.
Journal ArticleDOI
Correlation of Solubilities for CO2 and NH3 in H2O Using Soave-Redlich-Kwong Equation of State with MHV2 Mixing Rule
TL;DR: In this article, the flexibility and applicability of the modified Huron-Vidal second order mixing rule have been examined for the correlation of solubilities for CO2 and NH3 in H2O as an example of a system containing volatile weak electrolytes.
Journal ArticleDOI
Prediction of vapor-liquid equilibrium in highly asymmetric paraffinic systems with new modified EOS-GE model
Juheng Yang,Jing Gong,Guoyun Shi,Huirong Huang,Dan Wang,Wei Wang,Qingping Li,Bohui Shi,Haiyuan Yao +8 more
TL;DR: In this paper, a new modified EOS-GE model is developed for the highly asymmetric paraffinic systems, where the volume translated Peng-Robinson EOS is adopted coupled with the LCVM mixing rule.
Bubble Pressure Measurement and Modeling for n-Alkane + Aromatic Hydrocarbon Binary Mixtures
TL;DR: Acknowledgement and acknowledgements are given in this article and a list of tables and figures is given in Table 1.5.1.2.0.1] and Table 2.
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