2. A continuous distillation column handles a mixture consisting of 40 percent of benzene and 60 percent of toluene at the rate of 4 kg/s, and separates it into an overhead product containing 97 per cent of benzene and a bottom product containing 97 per cent toluene. All percentages are by mass. The reflux ratio at the top of the column is 2.85 (ie. Rp = 2.85). The feed enters as a saturated liquid. Equilibrium curve for benzene/toluene system is provided. a. Calculate the mass flowrates of the overhead and the bottom products b. Determine the theoretical number of plates required for the separation. c. What is the actual number of plates required if the plate efficiency is 75 percent? d. Where should the feed plate be located? e. Determine the minimum number of plates required (Mwbenzene = 78 kg/kmol ; Mwroluene = 92 kg/kmol)
2. A continuous distillation column handles a mixture consisting of 40 percent of benzene and 60 percent of toluene at the rate of 4 kg/s, and separates it into an overhead product containing 97 per cent of benzene and a bottom product containing 97 per cent toluene. All percentages are by mass. The reflux ratio at the top of the column is 2.85 (ie. Rp = 2.85). The feed enters as a saturated liquid. Equilibrium curve for benzene/toluene system is provided. a. Calculate the mass flowrates of the overhead and the bottom products b. Determine the theoretical number of plates required for the separation. c. What is the actual number of plates required if the plate efficiency is 75 percent? d. Where should the feed plate be located? e. Determine the minimum number of plates required (Mwbenzene = 78 kg/kmol ; Mwroluene = 92 kg/kmol)
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
Chapter1: Introduction
Section: Chapter Questions
Problem 1.1P
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Transcribed Image Text:2. A continuous distillation column handles a mixture consisting of 40 percent of benzene and
60 percent of toluene at the rate of 4 kg/s, and separates it into an overhead product
containing 97 per cent of benzene and a bottom product containing 97 per cent toluene. All
percentages are by mass. The reflux ratio at the top of the column is 2.85 (ie. Rp = 2.85).
The feed enters as a saturated liquid. Equilibrium curve for benzene/toluene system is
provided.
a. Calculate the mass flowrates of the overhead and the bottom products
b. Determine the theoretical number of plates required for the separation.
c. What is the actual number of plates required if the plate efficiency is 75 percent?
d. Where should the feed plate be located?
e. Determine the minimum number of plates required
(Mwbenzene = 78 kg/kmol ; Mwroluene = 92 kg/kmol)
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