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Journal of Algorithms and Computation
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Volume Volume 41 (2007)
Salehpour, A., Nasrifar, K. (2013). Predicting the Liquid Density of Gas Condensates and LNG Mixtures from Equations of State. Journal of Algorithms and Computation, 42(2), 257-268.
Ali Reza Salehpour; Khashayar Nasrifar. "Predicting the Liquid Density of Gas Condensates and LNG Mixtures from Equations of State". Journal of Algorithms and Computation, 42, 2, 2013, 257-268.
Salehpour, A., Nasrifar, K. (2013). 'Predicting the Liquid Density of Gas Condensates and LNG Mixtures from Equations of State', Journal of Algorithms and Computation, 42(2), pp. 257-268.
Salehpour, A., Nasrifar, K. Predicting the Liquid Density of Gas Condensates and LNG Mixtures from Equations of State. Journal of Algorithms and Computation, 2013; 42(2): 257-268.

Predicting the Liquid Density of Gas Condensates and LNG Mixtures from Equations of State

Article 10, Volume 42, Issue 2, May 2008, Page 257-268  XML PDF (211.28 K)
Document Type: Research Paper
Authors
Ali Reza Salehpour* ; Khashayar Nasrifar
Abstract
In this contribution, two approaches are followed to predict the saturated liquid density of liquefied natural gas (LNG) mixtures. In one approach, 12 cubic equations of state (EoSs), comprising the popular Peng-Robinson (PR) and Redlich-Kwong-Soave (RKS), are employed to predict the saturated liquid density of 20 LNG mixtures. In the other approach, these EoS are used in conjunction with a recently developed correlation to predict the liquid density of the same LNG mixtures. This correlation takes the advantages of the EoSs functions and is remarkably accurate for LNG mixtures. The results for both approaches are presented and the best predicting methods are ranked. Also the liquid density of 3 gas condensate mixtures are predicted using 10 EoSs and the results are compared with experimental data. The method employed is discussed and the best EoSs are ranked. Our evaluation indicates that in general, the EoSs used in this study are not accurate enough for predicting the liquid density of gas condensate mixtures. The PR, Patel-Teja (PT) EoSs or one of their variant are recommended, however.
Keywords
Thermodynamics; Equation of State; Saturated liquid density; LNG; Gas condensate
Statistics
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