Task 2 Q2. A gas mixture containing 9.7 mole % CO2 and 2.3 mole % ethanol is passed through an absorption tower to separate ethanol using water as solvent. The gas mixture enters from the bottom of the tower at a rate of 7955 m/h, at 298 K and at a pressure of 1.11 atm. Water enters from top of the tower with a flow rate of 6480 kg/h and at 298 K. The expected recovery of ethanol will be 85 %, and the maximum permissible pressure drop for the gas stream should not exceed 250 N/m2. The value of the Henry's law constant for the ethanol - water system corresponding to a temperature of 298 Kis H = 0.270 atm. Assume 73 % flooding condition. Use the equilibrium relationship y* = m x. Select a 50-mm ceramic raschig rings as packing material, Evaluate the following with suitable assumptions. (1) Number of ideal stages; 10 Flow Parameter: 10 (iii) 10 Tower diameter : Mass flow rate of liquid (iv) 05 (v) Packing Height 05 (vi) Effective interfacial area of packing per unit volume: 05 (vii) Draw to scale the sketch of packed bed absorption tower with label; 05 (viii) Viva 05