Question: Sulfur Dioxide (SO 2 , Component A) is absorbing into water in a packed column. At a certain location within the column, the bulk conditions
Sulfur Dioxide (SO2, Component A) is absorbing into water in a packed column. At a certain location within the column, the bulk conditions are 50C, 2 atm, yAG = 0.085, and xAL = 0.001. Equilibrium data for SO2 between air and water at 50C is shown below
| pA (atm) | cA (lbmol/ft3) |
| 0.0382 | 0.00193 |
| 0.0606 | 0.00290 |
| 0.1092 | 0.00483 |
| 0.1700 | 0.00676 |
We also have the following experimental values of the convective mass transfer coefficients:
kc,liq = 5 x 10-5 m/s kg = 1.111 x 10-5 kmol/(m2 s kPa)
For that point in the column, calculate: a) The global mass transfer coefficients Kc, liq and Kg, in the same units as the given local coefficients. b) The relative resistances to mass transfer in both phases, in % c) The flux of sulfur dioxide, in kmol/m^2 s
d) Plot the equilibrium line and the driving force line
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