1. A gas mixture containing a solute with a concentration of Y1=0.02 to be absorbed in...

1. A gas mixture containing a solute with a concentration of Y₁=0.02 to be absorbed in a packed tower. The gas-liquid equilibrium is described by: Y^*=1.0X.

(a) (10%) To achieve a 99% solute recovery, calculate the required gas phase overall mass transfer unit N_tOG and the composition X₁ at the liquid exit. X₂=0.0001 at the liquid inlet with L/G=1.2.

(b) (10%) For pure liquid inlet with L/G=0.8, what is the maximum percentage solute recovery?

2. For a packed tower for gas absorption operation, under a given operating condition, it is found that kya=kxa=0.026 kmol/m2.s. The equilibrium equation is given by: y=5x. Given that ky?G0.8, calculate the percentage reduction in overall mass transfer coefficient if the gas flow rate is doubled while the liquid flow rate remains unchanged.

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Expert Solution

For second problem given data is not clear ( ky?G)

Amanda K answered 1 year ago

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