1) Vaporization of Multicomponent Alcohol Mixtures and (Single-Stage) Flash Distillation The vapor-pressure at 101.325 kPa (760 mm Hg) is available for several alcohols: Vapor Pressure (mm Hg) T (°C)...

Separation Process Question

Extracted text: 1) Vaporization of Multicomponent Alcohol Mixtures and (Single-Stage) Flash Distillation The vapor-pressure at 101.325 kPa (760 mm Hg) is available for several alcohols: Vapor Pressure (mm Hg) T (°C) Methanol (MeOH) Ethanol (ETOH) n-Propanol (NPOH) n-Butanol (NBOH) 50 415 220.0 88.9 33.7 60 629 351.5 148.9 59.2 65 767 438 190.1 77.7 70 929 542 240.6 99.6 75 1119 665 301.9 131.3 80 1339 812 376 165.0 85 1593 984 465 206.1 90 1884 1185 571 225.9 100 2598 1706 843 387.6 An alcohol feed mixture at 101.325kPa (760 mmHg) consisting of 20 % methanol, 25% ethanol, 20% n- propyl alcohol and 35% n-butyl alcohol is to be fed to a distillation column. Calculate the following assuming the mixture follows Raoult’s Law: a) The boiling point and composition of the vapor in equilibrium. b) The dew point and composition of the liquid in equilibrium. c) The temperature and composition of both phases if 40.0% of the feed is vaporized in a flash distillation (e.g., a single 'stage' vapor-liquid separation)