JOURNAL OF CHEMICAL ENGINEERING OF JAPAN
Print ISSN : 0021-9592
Original Papers
New Invariant Asymmetric Mixing Rules
Ming-Ler LeeIn-Tung Liu
Author information
JOURNALS FREE ACCESS

1996 Volume 29 Issue 1 Pages 12-19

Details
Abstract

New invariant asymmmetric mixing rules were developed which obeyed the boundary condition of the second virial coefficient. These mixing rules were incorporated into the PRSV (Peng-Robinson-Stryjek-Vera) equation of state and applied to vapor-liquid equilibrium (VLE) calculations with emphasis on aqueous mixtures. The new mixing rules could improve VLE calculations for binary aqueous systems while an asymmetric interaction constant (l12) and temperature-dependent q12 were used. The new model reasonably predicts the VLE behavior for several aqueous weak electrolyte systems and is generally better than the API-Sour model at elevated temperature applications.

Information related to the author
© 1996 The Society of Chemical Engineers, Japan
Previous article Next article
feedback
Top