Homework Help is Here – Start Your Trial Now!
Engineering
Chemical Engineering
6.33. A two-stage process is used to separate H2S from a gas containing 96% H, and 4% H2S by volume. The H2S is absorbed in a solvent, which is then regenerated by air in a stripping column. The Henry's law constant for the absorption of H2S in the solvent at 0°C is 22 atm/mole fraction. (G.) Air + H,S Data on Process Streams G: 100 mol/h 96% H, 4% H,S, 1.8 atm STRIPPER 40°C 40°C G: 99.9% H2, 0.1% H,S Clean air (G2 (14) G3: 200 mol air/h HEATER Product gas G: 40°C, 1 atm ABSORBER 0°C L: 0.200 mole% H,S 0°C L: Assume at equilibrium with G2 at 0°C (1) Feed gas H, + H,S (a) Briefly explain in your own words the functions of the three process units. Include in your explanation the purpose of the air in the stripper and the reason the stripper operates at a higher temperature than the absorber. (b) Calculate the molar flow rate of pure solvent and the volumetric flow rate of the gas at G4, neglecting evaporation of solvent in both columns. (See flowchart.)

6.33. A two-stage process is used to separate H2S from a gas containing 96% H, and 4% H2S by volume. The H2S is absorbed in a solvent, which is then regenerated by air in a stripping column. The Henry's law constant for the absorption of H2S in the solvent at 0°C is 22 atm/mole fraction. (G.) Air + H,S Data on Process Streams G: 100 mol/h 96% H, 4% H,S, 1.8 atm STRIPPER 40°C 40°C G: 99.9% H2, 0.1% H,S Clean air (G2 (14) G3: 200 mol air/h HEATER Product gas G: 40°C, 1 atm ABSORBER 0°C L: 0.200 mole% H,S 0°C L: Assume at equilibrium with G2 at 0°C (1) Feed gas H, + H,S (a) Briefly explain in your own words the functions of the three process units. Include in your explanation the purpose of the air in the stripper and the reason the stripper operates at a higher temperature than the absorber. (b) Calculate the molar flow rate of pure solvent and the volumetric flow rate of the gas at G4, neglecting evaporation of solvent in both columns. (See flowchart.)

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
Problem 1.1P
See similar textbooks
icon
Related questions
Question

please help me solve question B

6.33. A two-stage process is used to separate H2S from a gas containing 96% H2 and 4% H2S by volume. The H,S is absorbed in a solvent, which is then regenerated by air in a stripping column. The Henry's law constant for the absorption of H2S in the solvent at 0°C is 22 atm/mole fraction. Air + H,S Data on Process Streams G: 100 mol/h 96% H2, 4% H,S, 1.8 atm STRIPPER 40°C 40°C Ga G: 99.9% H2, 0.1% H,S Clean air G: 200 mol air/h HEATER Product gas G: 40°C, 1 atm ABSORBER 0°C 0°C L: 0.200 mole% H,S 4: Assume at equilibrium with G2 at 0°C Feed gas H, + H,S (a) Briefly explain in your own words the functions of the three process units. Include in your explanation the purpose of the air in the stripper and the reason the stripper operates at a higher temperature than the absorber. (b) Calculate the molar flow rate of pure solvent and the volumetric flow rate of the gas at Ga. neglecting evaporation of solvent in both columns. (See flowchart.)
Transcribed Image Text:6.33. A two-stage process is used to separate H2S from a gas containing 96% H2 and 4% H2S by volume. The H,S is absorbed in a solvent, which is then regenerated by air in a stripping column. The Henry's law constant for the absorption of H2S in the solvent at 0°C is 22 atm/mole fraction. Air + H,S Data on Process Streams G: 100 mol/h 96% H2, 4% H,S, 1.8 atm STRIPPER 40°C 40°C Ga G: 99.9% H2, 0.1% H,S Clean air G: 200 mol air/h HEATER Product gas G: 40°C, 1 atm ABSORBER 0°C 0°C L: 0.200 mole% H,S 4: Assume at equilibrium with G2 at 0°C Feed gas H, + H,S (a) Briefly explain in your own words the functions of the three process units. Include in your explanation the purpose of the air in the stripper and the reason the stripper operates at a higher temperature than the absorber. (b) Calculate the molar flow rate of pure solvent and the volumetric flow rate of the gas at Ga. neglecting evaporation of solvent in both columns. (See flowchart.)
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 5 steps

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Knowledge Booster
Enzymatic and non Enzymatic reactions
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemical-engineering and related others by exploring similar questions and additional content below.
Recommended textbooks for you
Introduction to Chemical Engineering Thermodynami…
Introduction to Chemical Engineering Thermodynami…
Chemical Engineering
ISBN:
9781259696527
Author:
J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:
McGraw-Hill Education
Elementary Principles of Chemical Processes, Bind…
Elementary Principles of Chemical Processes, Bind…
Chemical Engineering
ISBN:
9781118431221
Author:
Richard M. Felder, Ronald W. Rousseau, Lisa G. Bullard
Publisher:
WILEY
Elements of Chemical Reaction Engineering (5th Ed…
Elements of Chemical Reaction Engineering (5th Ed…
Chemical Engineering
ISBN:
9780133887518
Author:
H. Scott Fogler
Publisher:
Prentice Hall
Process Dynamics and Control, 4e
Process Dynamics and Control, 4e
Chemical Engineering
ISBN:
9781119285915
Author:
Seborg
Publisher:
WILEY
Industrial Plastics: Theory and Applications
Industrial Plastics: Theory and Applications
Chemical Engineering
ISBN:
9781285061238
Author:
Lokensgard, Erik
Publisher:
Delmar Cengage Learning
Unit Operations of Chemical Engineering
Unit Operations of Chemical Engineering
Chemical Engineering
ISBN:
9780072848236
Author:
Warren McCabe, Julian C. Smith, Peter Harriott
Publisher:
McGraw-Hill Companies, The
SEE MORE TEXTBOOKS