For the same conditions as in Exercise 11.5, use a process simulator with the UNIFAC equation to calculate a portion of a distillation curve at 1 atm.

Data From Exercise 11.5

For the acetone, benzene, and n-heptane system at 1 atm find, in  references, all binary and ternary azeotropes, sketch a distillation curve  map on an equilateral-triangle diagram, and indicate distillation boundaries. Determine for each azeotrope and pure component whether it is a stable node, an unstable node, or saddle.