The simplest cubic equation of state for low-pressure vapor—liquid equilibrium calculations

Date

1990

Author

Orbey, H
VERA, JH

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A simple, virial-like cubic equation of state has been developed from the general form of the perturbed hard core model. The equation simultaneously incorporates saturation liquid volume and saturation pressure information for pure compounds. With two adjustable parameters per binary, it can represent low-pressure vapor—liquid equilibria as well or better than dual methods. This model applies a single equation to both phases and necessitates only a fraction of the input information required by dual methods. The results indicate that the cubic equations do not necessarily need a van der Waals type hardcore term in order to successfully predict the phase equilibrium.

Subject Keywords

Engineering, Chemical

URI

https://hdl.handle.net/11511/51407

Journal

Chemical Engineering Science

DOI

https://doi.org/10.1016/0009-2509(90)80223-2

Collections

Department of Chemical Engineering, Article

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Citation Formats

H. Orbey and J. VERA, “The simplest cubic equation of state for low-pressure vapor—liquid equilibrium calculations,” Chemical Engineering Science, pp. 3319–3328, 1990, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/51407.