If the composition of an azeotropic system is higher than its equilibrium composition, does that mean the originally light component becomes the heavy component?
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For example, in an ethanol-water system, if the composition is above the azeotropic ratio, does water evaporate first?
The light component will always remain a light component; it can never turn into a heavy component – only the boiling point changes! ! ! ! ! ! ! ! ! ! !
When I use DSTWU to simulate the distillation of ethanol and benzene, ethanol is produced at the bottom of the tower while the ethanol-benzene mixture is produced at the top. How should I define the recovery rates of the light and heavy components? I defined the light component as ethanol with a value of 0.523, and the heavy component as benzene with a value of 0.99; however, the system indicates that the recovery rate of the light component cannot be higher than that of the heavy component.
The ethanol-water system is quite special. Because the pure substance obtained in the end is related to the concentration. I don’t think there’s such a thing as light or heavy components in this system...