What model should be chosen for the ethylene glycol dehydration tower in ASPEN simulations?
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The inner diameter is known; it’s a 2-section plate corrugated packing, and the pressure and temperature are also known. What model should be used? :oThank you to all the teachers
For the RADFRAC model, choose UNIQUAC as the property method; I think that’s the right choice. Give it a try! Conversion of a packed tower to theoretical plates
Reply to 2# happyzhou1982: Thanks. The model and the methods for determining physical properties are as I thought. It’s just that I don’t know how to determine HETP and the number of theoretical plates; my senior suggested trying to set some values first and then making adjustments, gradually figuring it out :)
They’re using their real names directly. Look at my nickname. :kiss:
Reply to 4# zdzygw: You’re amazing :L
Would Wilson be more accurate?
Reply to 6# trampwin: Two literature articles were reviewed; the operating conditions are low pressure or even vacuum, and the liquid mixture exhibits highly non-ideal behavior. By comparing the simulation results of design conditions and actual conditions using the WILSON, NRTL, and UNIQUAC equations, the UNIFAC-Dortmund equation, which includes temperature corrections among the activity coefficient methods, was selected for property calculations.
Reply to 8# niren: Not bad
It would be better to use the RADFRAC model.
Select the unifac-dmd model