Design a process for the separation of \(1,000 \mathrm{kgmol} / \mathrm{hr}\) of a mixture composed of \(50 \mathrm{~mol} \%\) acetone (A) and \(50 \mathrm{~mol} \%\) heptane (C) to highly pure product streams (at least \(99 \mathrm{~mol} \%\) each), noting that acetone and heptane form a minimum-boiling azeotrope. Consider using benzene (B) as an entrainer. Your design should consist of as few distillation columns as possible, with each column having only two product streams (distillate and bottoms), operating at \(1 \mathrm{bar}\). Boiling temperature data for the system is given as follows.

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Data for P1 bar Component Azeo-I A 100% 0% 0% 95% B 0% 100% 0% 0% C 0% 0% 100% 5% Temperature 56C 80C 98C 55C