A 100 lbmol/h gas stream consisting of 35 mol % ammonia (NH3) and air is scrubbed with water to make a 5 mol % liquid product stream The temperature of the absorber is 80 °F, and the pressure is 14.7 psia (1 atm). The diagram below shows the unit operation which is a single equilibrium stage. Perform a DOF to show that the system is solvable, and calculate the flow rates and compositions of all streams. Equilibrium data is provided in the Table below. Vapor pressure NH3 (5 mol % in water, T-80 °F) Vapor pressure water (T-80 °F) vapor outlet water-2- T = 80°F P = 14.7 psia =100 lbmol/h YNH3=0.35 Absorber →→liquid outlet XNH3=0.05 Variables Stream system Total 37.2 mmHg 26.2 mmHg Constraints Flow Composition Performance Material Balances Total

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
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is 80 °F, and the pressure is 14.7 psia (1 atm). The diagram below shows the unit
operation which is a single equilibrium stage. Perform a DOF to show that the system is
solvable, and calculate the flow rates and compositions of all streams. Equilibrium data is
provided in the Table below.
Vapor pressure NH3 (5 mol% in water, T=80 °F)
Vapor pressure water (T= 80 °F)
37.2 mmHg
26.2 mmHg
%3D
vapor outlet
water-2
Variables
Stream
Constraints
Flow
Composition
Performance
Material Balances
system
T= 80 °F
P = 14.7 psia
Absorber
Total
Total
N=100 lbmol/h
YNH3=0.35
liquid outlet
XNH3=0.05
Transcribed Image Text:is 80 °F, and the pressure is 14.7 psia (1 atm). The diagram below shows the unit operation which is a single equilibrium stage. Perform a DOF to show that the system is solvable, and calculate the flow rates and compositions of all streams. Equilibrium data is provided in the Table below. Vapor pressure NH3 (5 mol% in water, T=80 °F) Vapor pressure water (T= 80 °F) 37.2 mmHg 26.2 mmHg %3D vapor outlet water-2 Variables Stream Constraints Flow Composition Performance Material Balances system T= 80 °F P = 14.7 psia Absorber Total Total N=100 lbmol/h YNH3=0.35 liquid outlet XNH3=0.05
A 100 lbmol/h gas stream consisting of 35 mol% ammonia (NH3) and air is
scrubbed with water to make a 5 mol% liquid product stream The temperature of the
absorber is 80 °F, and the pressure is 14.7 psia (1 atm). The diagram below shows the unit
operation which is a single equilibrium stage. Perform a DOF to show that the system is
solvable, and calculate the flow rates and compositions of all streams. Equilibrium data is
provided in the Table below.
Vapor pressure NH3 (5 mol% in water, T = 80 °F)
Vapor pressure water (T = 80 °F)
37.2 mmHg
26.2 mmHg
vapor outlet
water-2
Variables
Stream
system
Constraints
Flow
Composition
Performance
Material Balances
Total
T= 80 °F
P= 14.7 psia
Absorber
Total
3100 lbmol/h
YNeo=0.35
liquid outlet
XNe=0.05
Transcribed Image Text:A 100 lbmol/h gas stream consisting of 35 mol% ammonia (NH3) and air is scrubbed with water to make a 5 mol% liquid product stream The temperature of the absorber is 80 °F, and the pressure is 14.7 psia (1 atm). The diagram below shows the unit operation which is a single equilibrium stage. Perform a DOF to show that the system is solvable, and calculate the flow rates and compositions of all streams. Equilibrium data is provided in the Table below. Vapor pressure NH3 (5 mol% in water, T = 80 °F) Vapor pressure water (T = 80 °F) 37.2 mmHg 26.2 mmHg vapor outlet water-2 Variables Stream system Constraints Flow Composition Performance Material Balances Total T= 80 °F P= 14.7 psia Absorber Total 3100 lbmol/h YNeo=0.35 liquid outlet XNe=0.05
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