JOURNAL OF CHEMICAL ENGINEERING OF JAPAN
Online ISSN : 1881-1299
Print ISSN : 0021-9592
Thermodynamics, Physical Properties and Molecular Simulation
An Improved Model of Second Virial Coefficients for Polar Fluids and Fluid Mixtures
Ming-Jer LeeJui-Tang Chen
Author information
JOURNAL RESTRICTED ACCESS

1998 Volume 31 Issue 4 Pages 518-526

Details
Abstract
A corresponding-states model was developed empirically for calculating the second virial coefficients of polar fluids and fluid mixtures. In this model, a “nonpolar” and a “polar” acentric factors characterize size/shape and polarity/association effects, respectively. The new model contains a polarity or an association parameter (αP or αHB), which can be estimated from fluid’s reduced dipole moment through a specific generalized correlation. The temperature function of association contribution was found to depend on fluid’s reduced dipole moment. This generalized model predicts well the second virial coefficients for a diversity of polar fluids and strongly hydrogen-bonded substances. The new model with a set of recommended kij’s can reasonably estimate the second virial cross-coefficients.
Content from these authors
© 1998 The Society of Chemical Engineers, Japan
Next article
feedback
Top