(Solved): 11.4-1. Distillation Using McCabe-Thiele Method. A rectification column is fed 100 kg mol/h of a m ...

11.4-1. Distillation Using McCabe-Thiele Method. A rectification column is fed 100 kg mol/h of a mixture of 50 mol % benzene and 50 mol % toluene at 101.32 kPa abs pressure. The feed is liquid at the boiling point. The distillate is to contain 90 mol % benzene and the bottoms 10 mol % benzene. The reflux ratio is 4.52:1. Calculate the kg mol/h distillate, kg mol/h bottoms, and the number of theoretical trays needed us- ing the McCabe-Thiele method. Ans. D = 50 kg mol/h, W = 50 kg mol/h, 4.9 theoretical trays plus reboiler 11.4-6. Distillation Using a Vapor Feed. Repeat Problem 11.4-1 but use a feed that is satu- rated vapor at the dew point. Calculate the following: (a) Minimum reflux ratio R (b) Minimum number of theoretical plates at total reflux. & (c) Theoretical number of trays at an operating reflux ratio of 1.5(Rm).