separation principles

A chemical engineering intern in Thuthuka Separations Ltd is assigned to set up a pilot distillation plant that will separate a mixture of 0.19 mole fraction of ethanol and 0.81 mole fraction of water. The ethanol/water mixture is fed to a distillation column at a rate of 580kmol/hr. The distillate stream is desired to contain 92mol% ethanol and the bottom product 99mol% of water. A reflux ratio of 2.5 is to be used for the column. The vapor-liquid equilibrium data for ethanol is presented in Table 1. Table 1: Vapor-liquid equilibrium data at 1 atm, mole fraction ethanol If the feed to the distillation column is considered to be at its bubble point to the optima plate, determine the following: i) Schematic diagram representing the process ii) Distillate and bottoms stream flowrates. iii) Operating lines for the rectifying and stripping sections. iv) Number of theoretical stages required for the separation