Question
plz solve it as the values in the question: A gas mixture containing 9.8 mole % CO 2 and 2.1 mole % ethanol is passed
plz solve it as the values in the question:
A gas mixture containing 9.8 mole % CO2 and 2.1 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 7980 m3/h, at 298 K, and at a pressure of 1.11 atm. Water enters from the top of the tower with a flow rate of 6490 kg/h and at 298 K. The expected recovery of ethanol will be 88 %, and the maximum permissible pressure drop for the gas stream should not exceed 250 N/m2. The value of Henrys law constant for the ethanol-water system corresponding to a temperature of 298 K is H = 0.270 atm. Assume 70 % 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.
- Number of ideal stages.
- Flow Parameter.
- Tower diameter.
- Mass flow rate of liquid.
- Packing Height.
- Effective interfacial area of packing per unit volume.
- Draw to scale the sketch of packed bed absorption tower with label.
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