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.

Expert Solution

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

Amanda K answered 2 years ago

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