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An air stream with an absolute humidity of 0.011 kg of water per kg of dry air is dried to a humidity of 0.002 kg
An air stream with an absolute humidity of 0.011 kg of water per kg of dry air is dried to a humidity of 0.002 kg of water per kg of dry air in an absorption tower packed with 2-inch Raschig rings. A 50% by weight sodium hydroxide (NaOH) solution is used. The equilibrium data for this system are presented in the following table:
X | Y |
Mole of H2O / Mole of NAOH | Mole of H2O / Mole of dry air |
0 | 0 |
1 | 4 |
2 | 11 |
3 | 28 |
4 | 67 |
5 | 100 |
6 | 126 |
7 | 142 |
8 | 157 |
9 | 170 |
10 | 177 |
12 | 190 |
16 | 202 |
If the flow of the absorbent solution is 25% larger than the minimum and the height of one transfer unit is 60 cm, calculate the height of the tower in order to carry out this operation.
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