A new density-dependent mixing rule for the SRK equation of state

Autor: Shatynski, Theodore J., Knox, Dana E.
Zdroj: Journal of Solution Chemistry; August 1987, Vol. 16 Issue: 8 p641-648, 8p
Abstrakt: A new procedure for obtaining density-dependent mixing rules is applied to the Soave-Redlich-Kwong equation of state. The result is a one-parameter local-composition mixing rule which adequately represents the nonidealities possible in dense fluid mixtures but approaches the classical mixing rule at low densities. A three-parameter version of the mixing rule is also presented which allows for the local-composition effect in the low density limit. The expressions are tested with the Soave-Redlich-Kwong equation of state. Results for vapor-liquid and gas-liquid systems are discussed.
Databáze: Supplemental Index