An absorption column, operating at 4.5 bar and 30°C, is applied to separate SO2 (A) from air (B) using water as an absorbent. At a particular point in the column, the bulk concentrations of A in the gas and liquid phases are yAG = 0.02 and x4L = 0.0014, respectively. %3D The individual gas-phase and liquid-phase mass transfer coefficients are ky =15 kmol/(hr)(m²)(Ay) and kx= 80 kmol/(hr)(m²)(Ax), respectively. The equilibrium solubilities of SO2 in water are given in Table Q2.
An absorption column, operating at 4.5 bar and 30°C, is applied to separate SO2 (A) from air (B) using water as an absorbent. At a particular point in the column, the bulk concentrations of A in the gas and liquid phases are yAG = 0.02 and x4L = 0.0014, respectively. %3D The individual gas-phase and liquid-phase mass transfer coefficients are ky =15 kmol/(hr)(m²)(Ay) and kx= 80 kmol/(hr)(m²)(Ax), respectively. The equilibrium solubilities of SO2 in water are given in Table Q2.
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:Q2)
An absorption column, operating at 4.5 bar and 30°C, is applied to separate SO2 (A) from air (B)
using water as an absorbent. At a particular point in the column, the bulk concentrations of A in
the gas and liquid phases are yAG = 0.02 and xAL = 0.0014, respectively.
The individual gas-phase and liquid-phase mass transfer coefficients are ky = 15 kmol/(hr)(m²)(Ay)
and k= 80 kmol/(hr)(m²)(Ax), respectively. The equilibrium solubilities of SO2 in water are given
in Table Q2.
Table Q2 the equilibrium data for absorption of SO2 in water
Psor, mm Hg
0.6
1.7
4.7
8.1
11.8
19.7
36
52
79
g SO2 per 100 g H20|0.02
0.05
0.1
0.15
0.2
0.3
0.5
0.7
1.0
Given: Molecular weight of SO2 and H20 are 64 and 18 g/gmol, respectively; Calculate:
i- The interfacial concentrations (xAi and ya) at the particular location.
ii- The overall mass transfer coefficients Ky and Kr and the rate of absorption N.
iii- The individual mass transfer coefficients k'y and k'r.
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