Question

· 0 kg morni, w 50 kg mol/h, 4.9 theoretical trays plus reboiler 114-2. Rectification of a Heptane-Ethyl Benzene Mixture. A saturated liquid feed of 200 mol/h at the boiling point containing 42 mol % heptane and 58% ethyl benzene is to be fractionated at 101.32 kPa abs to give a distillate containing 97 mol % heptane and Calculate the mol/h bottoms, theoretical number of trays, and the feed tray num- ber. Equilibrium data are given below at 101.32 kPa abs pressure for the mole frac- a bottoms containing 1.1 mol % heptane. The reflux ratio used is 2.5:1. mol/h distillate, tion n-heptane xH and yH: Temperature Temperature °C Ун oC ХН ун 383.8 110.6 0.485 0.730 409.3 136.10 402.6 129.4 0.08 0.230 376.0 102.8 0.790 0.904 392.6 119.4 0.250 0.514 371.5 98.3 1.000 1.000 114.7 mol/h, 9.5 trays + reboiler, feed on tray 6 from top Ans. D 85.3 mol/h, W

Answer 1