Chemical Engineering Process Design

1. Acetone is recovered from a 16% acetone - air mixture with water in a packed tower using countercurrent flow. The feed rate of gas is ......kg /hrm2 and it enters and leaves at 25C. A recovery of 95% acetone is required. If 0.16 of acetone is found in the waste water, use 25mm polypropylene pall rings as packing and suitable material. Take total column pressure to be 101.3KN/m3, viscosity of liquid = 1.032103Ns/m2, pressure drop of water (mm)/m of packing is 22 and KG=1.685104KN/m2. Packing factor of pall ring to be 170 a) Determine Number of transfer units in the gas phase b) column packed height, The equilibrium data mixture are