Process : Recovery of Acetone from a waste vapor stream

Details : The system consists of three units: an absorber column, a distillation column and a condenser unit connected in series.

The waste vapor stream G $,$ Air $95\%,$ Acetone $3\%,$ water $2\%$ and a countercurrent flow of water W $(100\%$ water$)$ are fed to the Absorber $($ Unit $1).$ The outflows of Unit $1$ are Air A $(99\mathrm{.}5\%$ Air, $0\mathrm{.}5\%$ Water$)$ and a solution of Acetone F $($Acetone $19\%,$ Water $81\%)$ The acetone solution $F$ is fed to the Distillation Column $($Unit $2).$ The Unit $2$ has $2$ outflows, the bottom liquid B $($ Acetone $4\%,$ Water $96\%)$ and a Vapor V fed to the Condenser $($ Unit $3).$ The product of Unit $3$ is the Distallate D $($Acetone $99\%,$ Water $1\%.$ All flows are specified as Weight Percent

Task : a$)$ Draw a detailed flowsheet of the process, identifying all the in$-$ and outflows

b$)$ Calculate the values of A$,$ F$,$ W$,$ B and D per hour.

c$)$ Use ChemCad when applicable, if not applicable state why