6.25. Diameter of a valve-tray column. Figure 6.48 shows the conditions at the bottom tray of a reboiled stripper. If valve trays are used with 24-inch tray spacing, estimate the column diameter for 80% of flooding. 546.2 lbmol/h 6.192 cfs y, mol% C 0.0006 C3 0.4817 nC4 60.2573 nC5 32.5874 nC6 6.6730 Bottom tray x, mol% C 0.0001 C3 0.1448 nC4 39.1389 nC5 43.0599 nC6 17.6563 Figure 6.48 Data for Exercise 6.25. 621.3 lbmo/h 171.1 gpm 230.5F 150 psia