A waste gas of total inlet flow rate 10.0 lbmole/ft²· h containing 0.050 moles solute A/mole carrier gas is treated counter currently in packed tower with a nonvolatile, solute- free absorbing oil in order to scrub out 80% of solute A from the gas. It is desired to operate the process at a solvent flow rate 40% above the minimum solvent flow rate. Equilibrium mole ratio distribution data at the temperature and pressure of operation are provided below. 

a. Provide a plot Y_A vs. X_A for equilibrium line and the operating lines at the minimum solvent flow rate, and 1.4 times the minimum solvent flow rate. 

b. Determine the minimum solvent flow rate (L_s,min) and the maximum possible mole ratio in solute A in the outlet liquid. 

c. Repeat parts (a)-(b) for co-current flow. 

Equilibrium distribution data for solute A in the solvent, as mole ratios:

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0.02 0.12 XA 0.04 0.06 0.08 0.10 0.0075 YA 0.0130 0.0180 0.0230 0.027 0.0305 0.180 0.0385 XA 0.140 0.160 0.200 0.220 0.240 0.0330 0.0360 YA 0.0405 0.0430 0.0445