Absorption of CO₂ by water is carried in a wetted-wall tower where a flue gas stream containing CO₂ flows by a film of pure water flowing as a thin film down a vertical plate with a maximum velocity of 0.22 m/s. The CO2 is absorbed from the flue gas to the water at a total pressure of 2 atm and 27 °C. The partial pressure of CO2 in the gas phase is 0.5 atm. Henry's law equilibrium relation is P (atm) = 1.6 x . Assuming the diffusion coefficient of CO₂ in water is 2.0x10-9 m²/s, the water density is 990 kg/m³, the water viscosity is 0.85 cP, and the wall dimensions (LxW) is 2 x 1 m, calculate: 1. The thickness of the water film. 2. The average mass transfer coefficient. 3. The rate of absorption of CO2. need number 3 (how to find concentration, given 2 = 3.79*10^-5 and 1 = 1.986 *10^-4)
Absorption of CO₂ by water is carried in a wetted-wall tower where a flue gas stream containing CO₂ flows by a film of pure water flowing as a thin film down a vertical plate with a maximum velocity of 0.22 m/s. The CO2 is absorbed from the flue gas to the water at a total pressure of 2 atm and 27 °C. The partial pressure of CO2 in the gas phase is 0.5 atm. Henry's law equilibrium relation is P (atm) = 1.6 x . Assuming the diffusion coefficient of CO₂ in water is 2.0x10-9 m²/s, the water density is 990 kg/m³, the water viscosity is 0.85 cP, and the wall dimensions (LxW) is 2 x 1 m, calculate: 1. The thickness of the water film. 2. The average mass transfer coefficient. 3. The rate of absorption of CO2. need number 3 (how to find concentration, given 2 = 3.79*10^-5 and 1 = 1.986 *10^-4)
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:Absorption of CO2 by water is carried in a wetted-wall tower where a flue gas stream
containing CO2flows by a film of pure water flowing as a thin film down a vertical
plate with a maximum velocity of 0.22 m/s. The COzis absorbed from the flue gas to
the water at a total pressure of 2 atm and 27 °C. The partial pressure of COz in the gas
phase is 0.5 atm. Henry's law equilibrium relation is P (atm) = 1.6 x . Assuming
the diffusion coefficient of COz in water is 2.0x10-9 m²/s, the water density is 990 kg/m²,
the water viscosity is 0.85 cP, and the wall dimensions (LxW)is 2 x 1 m, calculate:
1. The thickness of the water film.
2. The average mass transfer coefficient.
3. The rate of absorption of CO2.
need number 3 (how to find concentration, given 2 = 3.79*10^-5 and 1 = 1.986 *10^-4)
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