At a particular location in a counter current gas absorber, the mole fraction of the transferring species (solute A) in the gas phase is 0.030, and the mole fraction of this species in the liquid phase is 0.0 10. The gas film mass-transfer coefficient is given k_y1.0 lb-mole/ft²· hr, and 80% of the resistance to mass transfer is in the liquid phase. Equilibrium distribution data at the temperature and pressure of the process are provided below:

a. Plot out the equilibrium line in mole fraction coordinates, plot out the operating point (x_A, y_A), and then estimate x^*_A and y^*_A from the graph. 

b. Determine the inter phase compositions x_A,i and y_A,i for solute A. 

c. Calculate the overall mass-transfer coefficient K_y for the gas phase, and the molar flux N_A.

Transcribed Image Text:

XA 0.0000 0.0050 0.0100 0.0150 0.0200 0.0250 0.0300 0.0350 0.0400 YA 0.0000 0.0015 0.0030 0.0055 0.0090 0.0135 0.0200 0.0290 0.0425