One thousand kilograms per hour of a 45 wt% acetone in water solution is to be extracted at 25°C in a continuous, countercurrent system with pure 1,1,2-trichloroethane to obtain a raffinate containing 10% acetone. Determine the minimum flow rate of solvent, the number of stages required for a solvent rate equal to 1.5 times the minimum, and the flow rate and composition of each stream leaving a stage. Use the the McCabe Thiele method and the KSB method to solve the problem.
One thousand kilograms per hour of a 45 wt% acetone in water solution is to be extracted at 25°C in a continuous, countercurrent system with pure 1,1,2-trichloroethane to obtain a raffinate containing 10% acetone. Determine the minimum flow rate of solvent, the number of stages required for a solvent rate equal to 1.5 times the minimum, and the flow rate and composition of each stream leaving a stage. Use the the McCabe Thiele method and the KSB method to solve the problem.
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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One thousand kilograms per hour of a 45 wt% acetone in water solution is to be extracted at 25°C in a continuous, countercurrent system with pure 1,1,2-trichloroethane to obtain a raffinate containing 10% acetone. Determine the minimum flow rate of solvent, the number of stages required for a solvent rate equal to 1.5 times the minimum, and the flow rate and composition of each stream leaving a stage. Use the the McCabe Thiele method and the KSB method to solve the problem.
Transcribed Image Text:Equilibrium Data for Acetone-Water-Trichloroethane system
Acetone, wt frac
Water, wt frac
Trichloroethane, wt frac
Extract
0.60
0.130
0.270
0.50
0.040
0.460
0.40
0.030
0.570
0.30
0.020
0.680
0.20
0.015
0.785
0.10
0.010
0.890
Raffinate
0.55
0.350
0.100
0.50
0.430
0.070
0.40
0.570
0.030
0.30
0.680
0.020
0.20
0.790
0.010
0.10
0.895
0.005
Tie Line Data
Raffinate, wt frac Acetone
Extract, wt frac Acetone
0.44
0.56
0.29
0.40
0.12
0.18
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