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[Ant87]

Hi,

I have been doing extensive research into the simulation of post combustion carbon capture using Aspen HYSYS. It seems to me that there is no clarity in how the amines package works...


When in the Basis Environment it is possible to select

• Thermodynamic Model: Kent Eisenberg or LI Mather
• Vapour Phase Model: Ideal or Non Ideal

However, in the amines package help file the advice says that the Amines Package uses the following methods of calculation

• Liquid: VLE (vapour liquid equilibrium) = Mod Kent Eisenberg
• Vapour: VLE (vapour liquid equilibrium) = PR
• Enthalpy/Entropy = Curve Fit

How is it possible to have two VLE calculations?

In another amines package help file it says that for calculating the equilibrium solubility it is possible to choose between the Kent Eisenber or Li Mather models.

So my question is this: what are each of the models actually used for?

Thanks for any help...

Ant