K-value (LLE)

For liquid-liquid equilibria, an equilibrium ratio or distribution coefficient is defined for each component as follows:

 

  image\THRM03.gif

where: image\THRM04.gif= liquid-liquid distribution coefficient

image\THRM05.gif = mole fraction of component i in liquid phases l and II, respectively.

 

Available methods for calculating LLE K-values are listed below. See Section 1.2.1 of the PRO/II Reference Manual for more information.

 

Soave-Redlich-Kwong

vanLaar

SRK-Kabadi-Danner

Margules

SRK-Huron-Vidal

Regular Solution

SRK-Panag.-Reid

Flory-Huggins

SRK-Modified Panag.-Reid

UNIFAC

SRK-SimSci

UNIFAC TDEP-1 (Lyngby)

SRK-Hexamer

UNIFAC TDEP-2 (Dortmund)

Improved Grayson Streed

UNIFAC TDEP-3

Peng Robinson

UNIFAC Free volume

PR-Huron-Vidal

Alcohol

PR-Panag.-Reid

Glycol

PR-Modified Panag.-Reid

Sour

Lee-Kesler-Plocker

GPA Sour Water

UNIWAALS

Amine

NRTL

Advanced Lattice Model

User-added Methods

SAFT

UNIQUAC

PHSC

Predictive Peng-Robinson78