Acetone-Chloroform System Steady-State Design

1 ACETONE-CHLOROFORM SYSTEM STEADY-STATE DESIGN 

Acetone and chloroform have very similar boiling points (329.4 and 334.3 K), despite having molecular weights that are considerable different (58.08 and 117.4kg/kmol). These molecules have an attraction for each other, which results in a maximum-boiling 

Design and Control of Distillation Systems for Separating Azeotropes. By William L. Luyben and I-Lung Chien Copyright 2010 John Wiley Sons, Inc. 

It may seem confusing that the feed point of the recovery column (the bottoms B from the first column) is slightly outside the region in which the distillate D2 and bottoms B2 points lie in the ternary diagram (Fig. 13b). This is physically possible because the distillation boundary is curved. Therefore, the feed point can he outside the region in which the two 

The optimum solvent flowrate is found by determining the minimum total energy required in the reboilers of the two columns Qja and Qr2), using four design spec/vary specifications. In the extractive column, the distillate impurity is held at 0.5 mol% chloroform and the bottoms impurity is held at 0.1 mol% acetone by varying distillate flowrate Di and reflux ratio RRi. In the solvent recovery column, the distillate impurity is held at 

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