Q2) A de-ethanizing column is to be designed to recover an ethane concentrate from a feed stream containing six light hydrocarbons. Operating conditions and product specifications are given in Table Q2. Using shortcut approaches, determine the required number of theoretical and actual stages when the operating reflux ratio is 1.25 times the minimum. Tahle Q2 flow rates, feed compocitions, and operating conditions Design Separation Concentration of propylene in distillate, 2.5mol% Concentration of ethane in bottoms, 5.0 mol % Operating Conditions: Feed condition, liquid at bubble point Distillate condition, liquid at bubble point Top-plate pressure, 401 psia (27.3 atm)