Gost 0.02 Equilibriom line off Gove 6.601 0.005 001 0,615 0.02 2. Calculate the height of the countercurrent absorptio
Posted: Sat May 21, 2022 5:09 pm
2. Calculate the height of the countercurrent absorption tower required for the removal of acetone from air using water. Gas flow is 30 kmol/hr, pure water flow is 45 kmol/hour, the cross section of the tower is 2m2. Incoming gas contains 2.6% acetone while the outlet contains 0.6%. Film coefficients for the water are kya=0.04 and kxa=0.06, both kmol/sec m2. The equilibrium relation for acetone in water is y=1.2 x, as shown in the attached graph. 1)Find the operating line and plot in in the attached diagram. 2) Use the kx/ky line to find the interface concentration at the top and bottom of the tower. 3)Calculate the height of the tower using kxa first and repeat using Kya. Note: notice that you must use flow per unit area for the calculation. Assume a dilute system.