Which property method is more accurate for simulating the ethanol-water system?
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I’m a beginner, just getting started with ordinary distillation of ethanol-water systems. I would like to ask which property measurement method is more accurate? NTRL? How does it compare to NTRL-RK? Still WILSON? I hope experts can help answer this.
Ethanol-water are polar substances, so NRTL is definitely the better choice. If it’s just distillation and the pressure isn’t high, NRTL will suffice. As for whether to use WILSON, if there are no other components present, NRTL is pretty much equivalent to WILSON； But if there are other components, then one has to choose the equation with the most comprehensive interaction parameters
Reply to 2# lgma: Thank you so much! !
Note that ethanol and water are azeotropic, and they cannot be separated by ordinary distillation in a column.
For the distillation system of ethanol and water, the UNIQUAC method remains the most accurate.