A distillation column is being used to separate a mixture of benzene, toluene, and cumene. The feed is 40 mole % benzene, 30 mole % toluene and 30 mole % cumene. We desire 95% recovery of the toluene in the distillate and 95% recovery of the cumene in the bottoms. CMO may be assumed. Refer to the following: α(benzene-toluene) = 2.25 and α(cumene-toluene) = 0.21 F = 100 kmol/hr , D/F - 0.7 a) Draw the column and label all the streams, including flowrates and components. Identify the key components in this problem. b) Find the minimum number of equilibrium stages required.

Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
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A distillation column is being used to separate a mixture of benzene, toluene, and cumene. The feed is 40 mole % benzene, 30 mole % toluene and 30 mole % cumene. We desire 95% recovery of the toluene in the distillate and 95% recovery of the cumene in the bottoms. CMO may be assumed. Refer to the following:
α(benzene-toluene) = 2.25 and α(cumene-toluene) = 0.21

F = 100 kmol/hr , D/F - 0.7

a) Draw the column and label all the streams, including flowrates and components. Identify the key components in this problem.

b) Find the minimum number of equilibrium stages required.

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