Residue Curve in a Ternary Equilateral Diagram
Residue Curve in a Ternary Equilateral Diagram
Consider a ternary mixture of chloroform, acetone, and methanol at . The vapor-liquid equilibrium (VLE) behavior is described by the modified Raoult's law with activity coefficients predicted by the Wilson model [1]. This mixture presents four azeotropes, whose locations and boiling points are:
101.325kPa
mole% | BP°C | |||
chloroform | methanol | acetone | ||
A 1 | 65.52 | 34.48 | - | 53.82 |
A 2 | - | 20.93 | 79.07 | 55.35 |
A 3 | 66.13 | - | 33.21 | 64.45 |
A 4 | 22.90 | 43.89 | 33.21 | 57.32 |
This Demonstration plots the residue curve for user-selected positions of the locator (shown by a blue circle), which has to be inside the ternary equilateral diagram.