USAGE EXAMPLES
Plate columns are often used to recover solvents from process wastes. In the system to the left, water is used to recover methanol from a drying operation. Water comes out as the liquid product and the volatile organic waste goes into the vapor phase. Shown on the right is a 40 tray column used for mineral oils. Plate columns can also be used to purify solvents of hazardous material, such as the stripping of hydrogen sulfide from "sour water." Many different inlet temperatures and feed moisture contents can be used.