A packed tower is designed to remove component A from an aqueous stream into a countercurrent air stream. In a given plane in the tower, the concentrations of the two adjacent streams are p₁ = 4x10³ Pa and CAL= 4 kgmol/m 3 of solution. Under the given flow conditions, the overall gas mass transfer coefficient, KG, is equal to 2.34x10-8 kgmol/(m².s.Pa) and 60% of the mass transfer resistance is found in the gas phase. Under the tower operating conditions of 290 K and 1.013x10 5 Pa, the system satisfies Henry's law with Henry's posture constant of 1400 Pa/(kgmol/m³). Determine: a) The individual gas film coefficient, kg. b) The interfacial gas concentration c) The individual liquid film coefficient, kl. d) The overall net mass transfer coefficient, K². e) Build the chart and complete it with the information obtained above.
A packed tower is designed to remove component A from an aqueous stream into a countercurrent air stream. In a given plane in the tower, the concentrations of the two adjacent streams are p₁ = 4x10³ Pa and CAL= 4 kgmol/m 3 of solution. Under the given flow conditions, the overall gas mass transfer coefficient, KG, is equal to 2.34x10-8 kgmol/(m².s.Pa) and 60% of the mass transfer resistance is found in the gas phase. Under the tower operating conditions of 290 K and 1.013x10 5 Pa, the system satisfies Henry's law with Henry's posture constant of 1400 Pa/(kgmol/m³). Determine: a) The individual gas film coefficient, kg. b) The interfacial gas concentration c) The individual liquid film coefficient, kl. d) The overall net mass transfer coefficient, K². e) Build the chart and complete it with the information obtained above.
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:A packed tower is designed to remove component A from an aqueous stream into a
countercurrent air stream. In a given plane in the tower, the concentrations of the two
adjacent streams are Pa= 4x103 Pa and CAL= 4 kgmol/m ³ of solution. Under the given
flow conditions, the overall gas mass transfer coefficient, KC, is equal to 2.34x10-8
kgmol/(m 2.s.Pa) and 60% of the mass transfer resistance is found in the gas phase.
Under the tower operating conditions of 290 K and 1.013x10 5 Pa, the system satisfies
Henry's law with Henry's posture constant of 1400 Pa/(kgmol/m³). Determine:
a) The individual gas film coefficient, kç-
b) The interfacial gas concentration
c) The individual liquid film coefficient, k,.
d) The overall net mass transfer coefficient, K'.
e) Build the chart and complete it with the information obtained above.
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