Binary Vapor Liquid Equilibrium (VLE) calculation plots Px-y, Tx-y diagram based on Wilson, NRTL and UNIQUAC acitivity coefficient model.

Data

Antoine Equation

  (1) (2)
Name
A
B
C

Binary Interaction Parameters

A A
A A
α12

Liquid Molar Volume

Modified Rackett equation is used to estimate liquid molar volume.

If value of ZRA is not available, it is calculated based on following relation

................. (1) (2)
Tc (K)
Pc (bara)
ω
ZRA

UNIQUAC parameters

  (1) (2)
ri
qi
qi'

Calculation

bara
K

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Reference