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29.14 An absorption tower, operating at 20°C and 1.0 atm, is used to absorb sulfur dioxide from an air mixture into water. At one point in the absorber, the partial pressure of the SO2 in the gas stream is 4 x 10³ Pa and the concentration of the contacting liquid stream is 0.55 kg mol/m³. The individual gas film mass- transfer coefficient is kG = 3.95 × 10-9 kg mol/m2 - s · Pa and individual liquid film the mass-transfer coefficient is kL = 1.1 × 10-4 kg mol/m2 - s - (kg mol/m³). Equilibrium data at 20°C are follows: partial pressure SO2, Pa 67 concentration, SO2 kg mol/m 426 1132 3466 7864 0.306 1.458 2.780 6.208 10.896 3 a. Evaluate the interfacial concentrations, CA.¡ and pA, i · b. Determine the values for the following quantities Coefficient Driving Force kG kL РAG PAi = CAi CAL - * KG = PAG РА - KL = СА — СAL c. Determine the percentage of the overall mass-transfer resistance in the gas film. |L||

29.14 An absorption tower, operating at 20°C and 1.0 atm, is used to absorb sulfur dioxide from an air mixture into water. At one point in the absorber, the partial pressure of the SO2 in the gas stream is 4 x 10³ Pa and the concentration of the contacting liquid stream is 0.55 kg mol/m³. The individual gas film mass- transfer coefficient is kG = 3.95 × 10-9 kg mol/m2 - s · Pa and individual liquid film the mass-transfer coefficient is kL = 1.1 × 10-4 kg mol/m2 - s - (kg mol/m³). Equilibrium data at 20°C are follows: partial pressure SO2, Pa 67 concentration, SO2 kg mol/m 426 1132 3466 7864 0.306 1.458 2.780 6.208 10.896 3 a. Evaluate the interfacial concentrations, CA.¡ and pA, i · b. Determine the values for the following quantities Coefficient Driving Force kG kL РAG PAi = CAi CAL - * KG = PAG РА - KL = СА — СAL c. Determine the percentage of the overall mass-transfer resistance in the gas film. |L||

Introduction to Chemical Engineering Thermodynamics
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
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29.14 An absorption tower, operating at 20°C and 1.0 atm, is used to absorb sulfur dioxide from an air mixture into water. At one point in the absorber, the partial pressure of the SO2 in the gas stream is 4 x 10³ Pa and the concentration of the contacting liquid stream is 0.55 kg mol/m³. The individual gas film mass- transfer coefficient is kG = 3.95 × 10-9 kg mol/m2 - s · Pa and individual liquid film the mass-transfer coefficient is kL = 1.1 × 10-4 kg mol/m2 - s - (kg mol/m³). Equilibrium data at 20°C are follows: partial pressure SO2, Pa 67 concentration, SO2 kg mol/m 426 1132 3466 7864 0.306 1.458 2.780 6.208 10.896 3 a. Evaluate the interfacial concentrations, CA.¡ and pA, i · b. Determine the values for the following quantities Coefficient Driving Force kG kL РAG PAi = CAi CAL - * KG = PAG РА - KL = СА — СAL c. Determine the percentage of the overall mass-transfer resistance in the gas film. |L||
Transcribed Image Text:29.14 An absorption tower, operating at 20°C and 1.0 atm, is used to absorb sulfur dioxide from an air mixture into water. At one point in the absorber, the partial pressure of the SO2 in the gas stream is 4 x 10³ Pa and the concentration of the contacting liquid stream is 0.55 kg mol/m³. The individual gas film mass- transfer coefficient is kG = 3.95 × 10-9 kg mol/m2 - s · Pa and individual liquid film the mass-transfer coefficient is kL = 1.1 × 10-4 kg mol/m2 - s - (kg mol/m³). Equilibrium data at 20°C are follows: partial pressure SO2, Pa 67 concentration, SO2 kg mol/m 426 1132 3466 7864 0.306 1.458 2.780 6.208 10.896 3 a. Evaluate the interfacial concentrations, CA.¡ and pA, i · b. Determine the values for the following quantities Coefficient Driving Force kG kL РAG PAi = CAi CAL - * KG = PAG РА - KL = СА — СAL c. Determine the percentage of the overall mass-transfer resistance in the gas film. |L||
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