The cumene effluent consists of a mixture with the following composition at $420$ oC and $25$ bar pressure.

Component

Propane Benzene Cumene

Mole fraction $(\%)$

$5$

$50$

$45$

Benzene and propane in the mixtures will be separated and fed again. As a result, it is desired to achieve $97\%$ clustering. Design a separation process for separating mixtures and make schematic elements and equipment plans.