Question: A separation of propylene from propane is achieved by distillation as shown in Figure, where two columns in series are used because a single column

A separation of propylene from propane is achieved by distillation as shown in Figure, where two columns in series are used because a single column would be too tall. The tray numbers refer to ec1uilibrium stages. Determine the column diameters, tray efficiency using the O'Connell correlation, number of actual trays, and column heights if perforated trays are used.

116°F 280 psia 180 3.5 Ibmol/h of C3 90 Bubble-point liquid feed 91 55 LID = 15.9 Ibmol/h %3D 360 240 C3 135.8°F 300 p

116F 280 psia 180 3.5 Ibmol/h of C3 90 Bubble-point liquid feed 91 55 LID = 15.9 Ibmol/h %3D 360 240 C3 135.8F 300 psia 12.51 Ibmol/hr C3 Figure 7.47 Data for Exercise 7.44.

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