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A soluble gas is absorbed into water using a packed tower. The equilibrium relationship may be...

A soluble gas is absorbed into water using a packed tower. The equilibrium relationship may be taken as y = 2x. The incoming vapor stream contains 1% of this soluble gas in air and 90% of the soluble gas must be removed from the air stream. Using a basis of 1 lb-mole/hr for the inlet vapor stream:

(a) Find the minimum water flowrate for this unit operation.

(b) Using a water flowrate 25% greater than the minimum, find the number of transfer units needed to meet specs. (solve this both analytically and graphically)

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