![]() ![]() Use a vapor flow rate that is nominally 75% of flooding. We wish to repeat Example 4-3 (distillation of ethanol and water) except that a column packed withĢ-inch metal Pall rings will be used. Equilibrium data for acetone and ethanol at 1 atm Stages, and required q value of the feed. If the feed composition is z = 0.3 (all concentrations are moleįraction of more volatile component), find the optimum feed plate location, total number of The distillation column in parts a and b is separating acetone from ethanol and has xD = 0.9, xB If the bottoms composition is xB = 0.13 mole fraction acetone and theīoilup ratio /B = 1.0, find the vapor composition leaving the second stage above the partialĬ. A distillation column separating acetone and ethanol has a partial reboiler that acts as anĮquilibrium contact. If L/V is equal to 0.8, find the composition of the liquid leaving the fifth stage belowī. A distillateĬoncentration of xD = 0.90 mole fraction acetone is desired. A distillation column with a total condenser is separating acetone from ethanol. If F = 50 mol/h, z = 0.8, p = 1 atm, and ym = 0.892 mole fraction methanol, find V, L, and xm.Ī. If z = 0.4, p = 1 atm, and Tdrum = 77☌, find V/F, xm, and ym. ![]() What must the flow rate and composition of the feed be?į. We are operating the flash drum so that the liquid mole fraction is 45 mol% methanol. V/F must be used? For a feed rate of 1000 lbmol/h, find product flow rates and compositions.ĭ. If the feed is 30 mol% methanol and we desire a liquid product that is 20 mol% methanol, what ![]() Mole fractions and flow rates? Feed rate is 100 kmol/h.Ĭ. Feed is 60 mol% methanol, and 40% of the feed is vaporized. We are separating a mixture of methanol and water in a flash drum at 1 atm pressure. HowĬan you get the composition from P and T? Setting the pressure and temperature also specifies the equilibrium composition. This part is sort of backwards (feed composition is not specified). Which variables have been specified, and how doesĭ. Which two variables (besides the feedĬomposition) have been specified? The drum just separates the vapor from the liquid.Ĭ. The other comments/questions are to help you.Ī. ![]()
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