What question did this study set out to answer?

To develop a generalized, predictive correlation for second virial coefficients applicable to pure fluids and multicomponent mixtures across nonpolar, polar, and associating chemical systems.

July 1, 1975Industrial & Engineering Chemistry Process Design and Development

A Generalized Method for Predicting Second Virial Coefficients

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Authors

JHJ. George Hayden JOJohn P. O’ConnellPortola Pharmaceuticals (United States)

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Implication

Computational modeling demonstrates a generalized method for predicting second virial coefficients in pure and mixed gases, highlighting improved accuracy in nonideal vapor-phase calculations.

Key Points

To develop a generalized, predictive correlation for second virial coefficients applicable to pure fluids and multicomponent mixtures across nonpolar, polar, and associating chemical systems.
Formulated a model combining physical intermolecular potential contributions with chemical association theory to represent dimerization phenomena.
Parameterize pure and cross-coefficient interactions using critical constants, dipole moments, and chemical association parameters.
Demonstrated accurate prediction of pure-component second virial coefficients across nonpolar, polar, and hydrogen-bonding substances.
Yielded reliable cross-virial coefficient estimations for vapor-liquid equilibrium modeling without requiring extensive mixture-specific empirical data.

Cite This Study

Hayden et al. (1975) studied this question.

synapsesocial.com/papers/6a1a2bc82da66836c8c7a05d https://doi.org/10.1021/i260055a003

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Implication

Computational modeling demonstrates a generalized method for predicting second virial coefficients in pure and mixed gases, highlighting improved accuracy in nonideal vapor-phase calculations.

A Generalized Method for Predicting Second Virial Coefficients

Discussion

Member takes

Implication

Key Points

Cite This Study

A Generalized Method for Predicting Second Virial Coefficients

Discussion

Member takes

Implication

Key Points

Cite This Study

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