Flash Vaporization: If a liquid of known composition is vaporized in one stage, then the composition of the liquid and vapor after separation can be found as
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A component balance gives
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Which can be rearranged to give
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This line passes through point 1(xF,xF) and has a slope of -W/D. Intersection of this line with the equilibrium curve yields point 2(x,y) that gives composition of vapor y, and a liquid of a composition x leaving the separator.
Knowing the equilibrium composition, we can find the temperature in the separator. Both liquid and vapor are at same temperature. We can either use bubble- or dew point equation to find the temperature. more...
Module for Flash Distillation Calculations.
