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Cubical equations of state for predicting the phase equilibria of poorly studied substances

  • Chemical Thermodynamics and Thermochemistry
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Abstract

A new procedure for determining the coefficients of the Peng-Robinson equation of state is proposed, for which a minimum of information is required. It is shown that using the Morachevskii complexity factor of molecular interaction in the algorithm for calculating the saturation vapor pressure of substances enables us to study the parameters of the vapor-liquid equilibria of substances with various polarities. Based on our validation of the procedure for determining the coefficients of the Ping-Robinson equation, it is concluded that the values for the saturation vapor pressure of halide derivatives of hydrocarbons calculated from tabular reference data agree satisfactorily in practice.

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Authors and Affiliations

  1. Odessa State Academy of Refrigeration, Odessa, 65020, Ukraine

    T. D. Shestova, A. S. Markvart, T. L. Lozovskii & V. P. Zheleznyi

Authors
  1. T. D. Shestova
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  2. A. S. Markvart
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  3. T. L. Lozovskii
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  4. V. P. Zheleznyi
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Corresponding author

Correspondence to T. D. Shestova.

Additional information

Original Russian Text © T.D. Shestova, A.S. Markvart, T.L. Lozovskii, V.P. Zheleznyi, 2013, published in Zhurnal Fizicheskoi Khimii, 2013, Vol. 87, No. 6, pp. 905–911.

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Shestova, T.D., Markvart, A.S., Lozovskii, T.L. et al. Cubical equations of state for predicting the phase equilibria of poorly studied substances. Russ. J. Phys. Chem. 87, 883–889 (2013). https://doi.org/10.1134/S0036024413060253

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  • DOI: https://doi.org/10.1134/S0036024413060253

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