gas-liquid equilibrium
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I would like to ask everyone about the gas-liquid equilibrium diagrams for pseudo-binary systems. For example, in extractive distillation, we have water (1) + ethanol (2) + ethylene glycol (3), with a molar composition of 0.3:0.4:0.3. To create an x,y graph, it is necessary to exclude ethylene glycol and then normalize water and ethanol; for instance, using ethanol as the reference for the x,y graph. How should this normalization be carried out? We also need to find x'; then how do we determine the corresponding value of y? Thank you!
For normalization, simply plot y ethanol/(y ethanol + y water) in the vapor phase against x ethanol/(x ethanol + x water) in the liquid phase