Differential Distillation by Rayleigh Equation

Problem: A binary mixture of benzene and toluene containing 40% of benzene is to be distilled at 1 atm pressure to recover 95% of the benzene. Estimate the molal percent of mixture to be distilled and the composition of the distillate obtained if distillation is carried out by Differential distillation, collecting all the distillate together. The average relative volatility of benzene to toluene is 2.5.

Differential Distillation Benzene and Toluene Separation: Rayleigh's Equation

Please see the attached file for the fully formatted problem(s). 100 moles of Benzene (A) and Toluene mixture containing 50% (mole) of Benzene is subjected to a differential distillation at atmospheric pressure till the composition of benzene in the residue is 33%. Calculate the total moles of the mixture distilled. Average relative volatility may be assumed as 2.16

Differential Distillation - Rayleigh's equation

Please see the attached file for the fully formatted problem(s). A liquid feed consisting of 1200 gmoles of mixture containing 30% naphthalene and 70% dipropylene glycol is differentially distilled at 100 mm Hg pressure and final distillate contains 55% of the feed solution. The VLE data are x 8.4 11.6 28.0 50.6 68.7 80.6 88 y 22.3 41.1 62.9 74.8 80.2 84.4 88 a. determine the amount of distillate b. determine the concentration of naphthalene in residue and distillate

Distillation and Number of Plates at Total Reflux: Fenske's Equation

Problem: A mixture of benzene and toluene containing 40 mole % of benzene is to be separated to give a product of 90 mole % of benzene at the top and bottom product with not more than 10 mole % of benzene. Using an average value of 2.4 for the volatility of benzene relative to toluene, calculate the number of theoretical plates required at total reflux. Also calculate the minimum reflux ratio, if the feed is liquid and at its boiling point.

Distillation and Reflux: Ponchon-Savarit Method

1000 kg/hr of a mixture containing 42 mole percent heptane and 58 mole percent ethyl benzene is to be fractionated to a distillate containing 97 mole percent heptane and a residue containing 99 mole percent ethyl benzene using a total condenser and feed at its saturated liquid condition. The enthalpy-concentration data for the heptane-ethyl benzene at 1 atm pressure are as follows: xheptane 0 0.08 0.18 0.25 0.49 0.65 0.79 0.91 1.0 yheptane 0 0.28 0.43 0.51 0.73 0.83 0.90 0.96 1.0 Hl (kJ/kmol) x 10-3 24.3 24.1 23.2 22.8 22.05 21.75 21.7 21.6 21.4 Hv (kJ/kmol) x 10-3 61.2 59.6 58.5 58.1 56.5 55.2 54.4 53.8 53.3 Calculate the following: a. Minimum reflux ratio b. Minimum number of st... click for more