A mixture of benzene (A) toluene (B), which contains 50-50 mole % is required to be distilled in a continuous distillation column at 20C. The feed stream flow rate is 8500 kg/hr. The top product contains 95 mole % and the bottom product contains 5 mole % benzene. This column is operated at atmospheric pressure (adiabatic) and column efficiency is 60%. You are required to design this distillation column and assume that constant molal overflow is valid. Use R (refluks) with 3 times the R minimum. Refer to the given data, table 1 and use Figure 1 to solve question 2. Data given: i. The enthalpy of vaporization (latent heat) for the mixture = 30336 kJ/kmol ii. The average specific heat = 157.02 kJ/kmol.K a) Determine molar flow rate of the distillate and bottom product. (6 marks) b) Determine the slope of q-line. (6 marks) c) Determine minimum reflux ratio (Rmin). (5 marks) d) Evaluate the number of theoretical stages (N). (8 marks) e) Evaluate the number of actual stages (N). (2 marks) f) What is the minimum number of theoretical stages (N)? (3 marks) [TOTAL MARKS 30] Jadual 1: Data Keseimbangan untuk Sistem Benzena- Toluena / Table 1: Equilibrium Data for Benzene Toluene System Temperature, YA 80.1 1 1 85 0.780 0.9 90 0.581 0.777 95 0.411 0.632 100 0.258 0.456 105 0.130 0.261 110.6 0 0 Y-x for BENZENEITOLUENE 0.9 0.8 0.7 1.0 atm 0.6 Vapor Molefrac BENZENE 0.5 0.4 0.3 0.2 0.1 0 0.1 0.2 0.3 0.7 0.8 0.9 1 0.4 0.5 0.6 Liquid Molefrac BENZENE Rajah 1/ Figure 1