WOLFRAM|DEMONSTRATIONS PROJECT

T-x-y and x-y Diagrams for Binary Vapor-Liquid Equilibrium (VLE) in Flash Drum

diagram

x-y

T-x-y

both

liquid/vapor ratio

2

feed mole fraction methanol

0.5

The

x

-

y

diagram (vapor mole fraction versus liquid mole fraction) for vapor-liquid equilibrium (VLE) is shown for a methanol/water mixture being fed to a flash drum. The corresponding

T

-

x

-

y

diagram shows how the points on the

x

-

y

diagram are obtained; each point corresponds to a different temperature. Use buttons to view the

x

-

y

and

T

-

x

-

y

diagrams separately or to view both simultaneously. Use the "liquid/vapor ratio" slider to select the ratio leaving the flash drum; use the other slider to select the feed composition to the flash separation.