Example Packed Bed Absorption

If a gas contains a contaminant you would like to remove, one way of doing this is to bring 

TABLE 6.4. Multicomponent Distillation with Radfrac, Reflux Ratio = 10 

Acetone has been transferred from the air stream to the water stream, and the mole fraction of the air stream leaving is 0.33 percent. Notice also that the air, which was dry on entering, is now wet, with water vapor forming about 3.4 percent of the gas stream. A small amount of air is dissolved in the water, too. In a complete system, of course, the water effluent is taken to another column where the acetone is removed, and the water is recycled. Then the water stream is saturated with air and contains some acetone as well. 

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