For the same distillation column described in Question 1, assuming CMO find the optimum feed plate location and the total number of equilibrium stages required using McCabe Thiele diagram. Write the equation for the 'Top operating line'. (2 marks) Use q value calculated in Question 1 for writing 'Feed line equation'. (2 marks) Write the equation for the 'Bottom operating line'. (2 marks) Use all these lines on the Y-X diagram (provided below) for finding the required number of stages and identify the optimum feed stage. (6 marks) A steady-state, countercurrent, staged distillation column is to be used to separate ethanol from water. The feed is a 50 mol % ethanol, 50 mol% water mixture at a pressure of 1 atm. The feed is also 20% vaporized resulting in a respective value for q. Flow rate of feed is 100 kmol/h. The column also operates at a pressure of 1 atm. The reflux is returned as a saturated liquid. A reflux ratio of L/D = 2.025 is being used. We desire a bottoms composition of xB = 0.03 (mol fraction ethanol) and a distillate composition of xD = 0.90 (mol fraction ethanol). The system has a total condenser and a partial reboiler. a Find D and B using overall and component mole balance. (2 marks) Find ho, ho, H1 from Ponchon-Savarit diagram (provided for Ethanol- Water system) and definition of q find hf (assume Constant Molal Overflow). (4 marks) Finally, using Enriching section and Overall energy balance for the column find Qc, and QR. (2 marks) For the same distillation column described in Question 1, assuming CMO find the optimum feed plate location and the total number of equilibrium stages required using McCabe Thiele diagram. Write the equation for the 'Top operating line'. (2 marks) Use q value calculated in Question 1 for writing 'Feed line equation'. (2 marks) Write the equation for the 'Bottom operating line'. (2 marks) Use all these lines on the Y-X diagram (provided below) for finding the required number of stages and identify the optimum feed stage. (6 marks) A steady-state, countercurrent, staged distillation column is to be used to separate ethanol from water. The feed is a 50 mol % ethanol, 50 mol% water mixture at a pressure of 1 atm. The feed is also 20% vaporized resulting in a respective value for q. Flow rate of feed is 100 kmol/h. The column also operates at a pressure of 1 atm. The reflux is returned as a saturated liquid. A reflux ratio of L/D = 2.025 is being used. We desire a bottoms composition of xB = 0.03 (mol fraction ethanol) and a distillate composition of xD = 0.90 (mol fraction ethanol). The system has a total condenser and a partial reboiler. a Find D and B using overall and component mole balance. (2 marks) Find ho, ho, H1 from Ponchon-Savarit diagram (provided for Ethanol- Water system) and definition of q find hf (assume Constant Molal Overflow). (4 marks) Finally, using Enriching section and Overall energy balance for the column find Qc, and QR. (2 marks)