It is proposed to reduce the concentration of acetaldehyde in aqueous solution from 50 per cent to 5 per cent by mass, by extraction with solvent S at 293 K. If a countercurrent multiple-contact process is adopted and 0.025 kg/s of the solution is treated with an equal quantity of solvent, determine the number of theoretical stages required and the mass flowrate and concentration of the extract from the first stage. The equilibrium relationship for this system at 293 K is:
It is proposed to reduce the concentration of acetaldehyde in aqueous solution from 50 per cent to 5 per cent by mass, by extraction with solvent S at 293 K. If a countercurrent multiple-contact process is adopted and 0.025 kg/s of the solution is treated with an equal quantity of solvent, determine the number of theoretical stages required and the mass flowrate and concentration of the extract from the first stage. The equilibrium relationship for this system at 293 K is:
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:It is proposed to reduce the concentration of acetaldehyde in aqueous solution from 50 per
cent to 5 per cent by mass, by extraction with solvent S at 293 K. If a countercurrent
multiple-contact process is adopted and 0.025 kg/s of the solution is treated with an equal
quantity of solvent, determine the number of theoretical stages required and the mass
flowrate and concentration of the extract from the first stage.
The equilibrium relationship for this system at 293 K is:
177
100% Acetaldehyde
100%
Water
Figure 13a. Equilibrium data for Problem 13.9
50
50
100%
Solvent S
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