A CUBIC EQUATION OF STATE BASED ON A SIMPLIFIED HARD-CORE MODEL

The Redlich-Kwong (RK) equation of state introduced in 1949 has been considered the most accurate two-constant-parameter cubic equation of state. The other cubic equations which are more accurate than the RK equation contain either three, or more, parameters and/or their parameters are temperature-...

Full description

Saved in:
Bibliographic Details
Published in:Chemical engineering communications 1995-01, Vol.131 (1), p.15-31
Main Authors: MOHSEN-NIA, M., MODDARESS, H., MANSOOR, G. ALI
Format: Article
Language:English
Subjects:
Cubic equation of state
Density prediction
Hard-sphere mixture
Phase equilibria prediction
Solubility prediction
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The Redlich-Kwong (RK) equation of state introduced in 1949 has been considered the most accurate two-constant-parameter cubic equation of state. The other cubic equations which are more accurate than the RK equation contain either three, or more, parameters and/or their parameters are temperature- dependent. A New two-constant-parameter cubic equation of state, $ is introduced using a simplified molecular theory of hard-sphere fluids for its repulsive term. This two-constant-parameter cubic equation of state appreciably increases the accuracy of thermodynamic property predictions and phase equilibria of pure fluids and flluid mixtures over the equations of this category.
ISSN:0098-6445
1563-5201
DOI:10.1080/00986449508936281