Recover high purity with less energy. AVN Corp. FIGURE 11. Calibrated metering pumps can be used in reflux splitters to control the reflux ratio With our multiple-effect distillation technology & remarkable thermodynamic efficency. Be it specialty & fine chemicals, solvents, white biotech or green energies applications, GEA supplies plants of any size for the separation of compound mixtures by distillation/rectification. AVN Corp. FIGURE 12. The diagram shows how to remove vapor from a sidestream with a control valve Vent Vapor in Coolant jacket Graduated Find out more https:// go.gea.com/2zq Lower receiver AVN Corp. FIGURE 13. A condenser-receiver, like the one shown here, can be used for low-flowrate condensate the column. During operation, the heat input from the heat tapes is adjusted so that the two thermocouples read the same temperature, indicating that there is no heat flow into or out of the column. Figure 5 shows a conceptual diagram of this technique. For columns with significant temperature profiles, multiple zones are required. Each zone will represent one or more heat-tape sections, and each of these sections will operate at a different temperature. The goal is that the temperature of each heat-tape zone is equal to the average process temperature within that zone. For details visit adlinks.chemengonline.com/84645-10 CHEMICAL ENGINEERING WWW.CHEMENGONLINE.COM MARCH 2023 27http://adlinks.chemengonline.com/84645-10 http://WWW.CHEMENGONLINE.COM