Prepare a set of performance curves similar to those in Example 21. 10 for a packed scrubber with 10 transfer units that removes solute from air from a mole fraction of 0. 02 to a mole fraction of 0. 001 . The flowrate of the inlet air stream is \(80 \mathrm{kmol} / \mathrm{h}\), and the solvent flowrate (assumed solute free) is \(40 \mathrm{kmol} / \mathrm{h}\).

Data from example 21.10

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For the situation described in Example 21.9. the inlet air flowrate and the inlet mole fraction of acetone in air may vary during process operation Prepare a set of performance curves for the liquid rate necessary to maintain the outlet acetone mole fraction for a range of inlet acetone mole fractions. There should be curves for five different values of the inlet gas rate, including the original case and the following percentages of the original case: 80, 90, 110, and 120. The temperature and pressure in the scrubber are assumed to remain constant. The result is shown on Figure E21.10. The curves are generated as follows. From the original