D7.* A distillation column with a total condenser is separating a feed that is 30 mol% acetone from ethanol. Distillate XD 0.90, and bottoms XB 0.13, both mole fractions acetone. Assume CMO is valid. L/V = 0.8. Boilup ratio is N/B = 1.0. = a. Find the composition of the liquid leaving the fifth stage below the total condenser. b. The column has a partial reboiler that acts as an equilibrium contact. Find the vapor composition leaving the second stage above the partial reboiler. c. Find optimum feed plate location, total number of stages, and required q value of feed. Equilibrium data for acetone (A) and ethanol at 1 atm (Perry et al., 1963, pp. 13-4): ХА О УА О 0.10 0.15 0.20 0.25 0.30 0.35 0.40 0.50 0.60 0.70 0.80 0.90 1.0 0.262 0.348 0.417 0.478 0.524 0.566 0.605 0.674 0.739 0.802 0.865 0.929 1.0 T°C 78.3 - 63.6 60.4 59.1 58.0 57.0 56.1 67.3 65.9
D7.* A distillation column with a total condenser is separating a feed that is 30 mol% acetone from ethanol. Distillate XD 0.90, and bottoms XB 0.13, both mole fractions acetone. Assume CMO is valid. L/V = 0.8. Boilup ratio is N/B = 1.0. = a. Find the composition of the liquid leaving the fifth stage below the total condenser. b. The column has a partial reboiler that acts as an equilibrium contact. Find the vapor composition leaving the second stage above the partial reboiler. c. Find optimum feed plate location, total number of stages, and required q value of feed. Equilibrium data for acetone (A) and ethanol at 1 atm (Perry et al., 1963, pp. 13-4): ХА О УА О 0.10 0.15 0.20 0.25 0.30 0.35 0.40 0.50 0.60 0.70 0.80 0.90 1.0 0.262 0.348 0.417 0.478 0.524 0.566 0.605 0.674 0.739 0.802 0.865 0.929 1.0 T°C 78.3 - 63.6 60.4 59.1 58.0 57.0 56.1 67.3 65.9
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:D7.* A distillation column with a total condenser is separating a feed that is
30 mol% acetone from ethanol. Distillate Xp 0.90, and bottoms XB
0.13, both mole fractions acetone. Assume CMO is valid. L/V = 0.8.
Boilup ratio is w/B = 1.0.
=
=
a. Find the composition of the liquid leaving the fifth stage below the
total condenser.
C.
b. The column has a partial reboiler that acts as an equilibrium contact.
Find the vapor composition leaving the second stage above the
partial reboiler.
Find optimum feed plate location, total number of stages, and
required q value of feed.
Equilibrium data for acetone (A) and ethanol at 1 atm (Perry et al.,
1963, pp. 13-4):
ХА О 0.10 0.15 0.20 0.25 0.30 0.35 0.40 0.50 0.60 0.70 0.80 0.90 1.0
YA O 0.262 0.348 0.417 0.478 0.524 0.566 0.605 0.674 0.739 0.802 0.865 0.929 1.0
T°C 78.3 -
63.6
60.4 59.1 58.0 57.0 56.1
67.3 65.9 -
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