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Example 12-3. Graphical analysis for more concentrated absorber A gas strearn is 90 mol% N2 and 10 mol% CO2. We wish to absorb the CO2 into water. The inlet water is pure and is at 5°C. Because of cooling coils, operation can be assumed to be isothermal Operation is at 10 atm If the liquid flow rate is 1.5 times the minimum liquid flow rate, how many equilibrium stages are required to absorb 92% of the CO2? Choose a basis of 1 mol/h of entering gas.

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