A rectification column is fed 100 kg mol/h of a mixture of 50 mol % benzene and 50 mol % toluene at 101.32 kPa abs pressure. The feed is liquid at the boiling point. The distillate is to contain 90 mol % benzene and the bottoms 10 mol % benzene. The reflux ratio used is 4.52:1. Calculate the kg mol/h distillate , kg mol/h bottoms, and the number of theoretical trays needed, the minimum reflux ratio Rm, the minimum number of theoretical plates at total reflux using the McCabe-Thiele method. benzene-toluene at 101.32 kPa T oC x y 112.15 0.000 0.000 109.73 0.050 0.110 107.44 0.100 0.209 105.27 0.150 0.297 103.20 0.200 0.376 101.24 0.250 0.447 99.37 0.300 0.511 97.58 0.350 0.569 95.88 0.400 0.622 94.26 0.450 0.670 92.70 0.500 0.714 91.21 0.550 0.754 89.79 0.600 0.790 88.42 0.650 0.824 87.10 0.700 0.855 85.83 0.750 0.884 84.61 0.800 0.911 83.44 0.850 0.936 82.30 0.900 0.959 81.21 0.950 0.980 80.15 1.000 1.000
A rectification column is fed 100 kg mol/h of a mixture of 50 mol % benzene and 50 mol % toluene at 101.32 kPa abs pressure. The feed is liquid at the boiling point. The distillate is to contain 90 mol % benzene and the bottoms 10 mol % benzene. The reflux ratio used is 4.52:1. Calculate the kg mol/h distillate , kg mol/h bottoms, and the number of theoretical trays needed, the minimum reflux ratio Rm, the minimum number of theoretical plates at total reflux using the McCabe-Thiele method. benzene-toluene at 101.32 kPa T oC x y 112.15 0.000 0.000 109.73 0.050 0.110 107.44 0.100 0.209 105.27 0.150 0.297 103.20 0.200 0.376 101.24 0.250 0.447 99.37 0.300 0.511 97.58 0.350 0.569 95.88 0.400 0.622 94.26 0.450 0.670 92.70 0.500 0.714 91.21 0.550 0.754 89.79 0.600 0.790 88.42 0.650 0.824 87.10 0.700 0.855 85.83 0.750 0.884 84.61 0.800 0.911 83.44 0.850 0.936 82.30 0.900 0.959 81.21 0.950 0.980 80.15 1.000 1.000
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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A rectification column is fed 100 kg mol/h of a mixture of 50 mol % benzene and 50 mol % toluene at 101.32 kPa abs pressure. The feed is liquid at the boiling point. The distillate is to contain 90 mol % benzene and the bottoms 10 mol % benzene. The reflux ratio used is 4.52:1. Calculate the kg mol/h distillate , kg mol/h bottoms, and the number of theoretical trays needed, the minimum reflux ratio Rm, the minimum number of theoretical plates at total reflux using the McCabe-Thiele method.
|
benzene-toluene at 101.32 kPa |
||
|
T oC |
x |
y |
|
112.15 |
0.000 |
0.000 |
|
109.73 |
0.050 |
0.110 |
|
107.44 |
0.100 |
0.209 |
|
105.27 |
0.150 |
0.297 |
|
103.20 |
0.200 |
0.376 |
|
101.24 |
0.250 |
0.447 |
|
99.37 |
0.300 |
0.511 |
|
97.58 |
0.350 |
0.569 |
|
95.88 |
0.400 |
0.622 |
|
94.26 |
0.450 |
0.670 |
|
92.70 |
0.500 |
0.714 |
|
91.21 |
0.550 |
0.754 |
|
89.79 |
0.600 |
0.790 |
|
88.42 |
0.650 |
0.824 |
|
87.10 |
0.700 |
0.855 |
|
85.83 |
0.750 |
0.884 |
|
84.61 |
0.800 |
0.911 |
|
83.44 |
0.850 |
0.936 |
|
82.30 |
0.900 |
0.959 |
|
81.21 |
0.950 |
0.980 |
|
80.15 |
1.000 |
1.000 |
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Step 1: Determine the given data
VIEWStep 2: Draw the flow diagram
VIEWStep 3: Calculate the distillate and bottom flow rates
VIEWStep 4: Draw the equilibrium curve
VIEWStep 5: Calculate number of theoretical trays
VIEWStep 6: Calculate Rm
VIEWStep 7: Calculate the minimum number of theoretical plates
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