How to set up azeotropic stratification?
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After condensation, the material from the top of the tower enters the phase separator and is stratified. Part of the material flows back into the tower, and part comes out as crude product. The stratified wastewater is discharged into the sewage treatment system. What modules need to be added to the top of the tower in ASPEN?
What you want to do should be heterogeneous azeotropic distillation? Right? If so, then there is no condenser at the top of the azeotropic tower. The gas phase at the top of the tower is extracted. After passing through the heat exchanger (heater), it is condensed and then enters the stratifier (Separators - Decanter). After stratification, the azeotropic agent phase returns to the azeotropic distillation tower (equivalent to reflux). Another item is extracted. Therefore, the module to be added is: Heat exchangers——heater and Separators——Decanter
What you said above is correct. It is a typical heterogeneous azeotropic distillation, such as using benzene to entrain water to produce anhydrous ethanol. In the decanter, the upper oil phase returns to the tower, and the lower water phase can enter the next tower.