water gas shift reactor design
DESCRIPTION
Presentation for CN2116AY0809 Sem 2TRANSCRIPT
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WATER GAS SHIFT REACTOR DESIGN
CN2116 Group 28
INTRODUCTION
EXECUTIVE SUMMARY
SIMULATION
FEATURESCONCLUSION
MA HAOTIAN
LI LAN
LIU YI FEI
LUO YUSHAN YU
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INTRODUCTIONWGS Reactor Design
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• Hydrogen supply for mass ammonia industrial synthesis
DESIGN OBJECTIVE
INTRO EXE. SUMMARY SIMULATION FEATURES CONCLUSION
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EXECUTIVE SUMMARYWGS Reactor Design
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Heat Exchang
er I
CO2 Remova
l Tank
Heat Exchang
er II
HTS React
or
Heat Exchang
er III
LTS React
or
REACTOR SET-UP
INTRO EXE. SUMMARY SIMULATION FEATURES CONCLUSION
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• Feed Composition
Component Composition (%)
CO 7
H2O 37
CO2 4
H2 42
Inert (N2) 10
DESIGN SPECIFICATIONS
INTRO EXE. SUMMARY SIMULATION FEATURES CONCLUSION
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• Catalyst Properties
Particulars Properties
Composition (HTS) Fe3O4-Cr2O3 (90-95% Fe2O3, 5-10% Cr2O3, CuO, K2O, ZnO,
PbO, Al2O3)
Composition (LTS) Cu-Ce(La)Ox (5% Cu)
Particle Size (mm) 5
Bulk Density (kg/m3) 995
Weight (kg, HTS) 88256.5
Weight (kg, LTS) 18706
DESIGN SPECIFICATIONS (CONT)
INTRO EXE. SUMMARY SIMULATION FEATURES CONCLUSION
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• HTS Reactor Dimensions
Dimensions Values
Inner Diameter (m) 3.8
Cross-sectional Area (m2) 11.6
Height (m) 7.7
Volume (m3) 88.7
DESIGN SPECIFICATIONS (CONT)
INTRO EXE. SUMMARY SIMULATION FEATURES CONCLUSION
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• LTS Reactor Dimensions
Dimensions Values
Inner Diameter (m) 2.3
Cross-sectional Area (m2) 4.1
Height (m) 4.6
Volume (m3) 18.8
DESIGN SPECIFICATIONS (CONT)
INTRO EXE. SUMMARY SIMULATION FEATURES CONCLUSION
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• Process Specifications
Particulars HTS LTS
Inlet Temperature (OC) 300 – 500 200 - 300
Outlet Temperature (OC)
350 - 550 205 – 310
Inlet Pressure (bar) 10 9.85
Outlet Pressure (bar) 9.85 9.82
Conversion 0.81 0.99
Hydrogen Producing Rate (mol/s)
- 1467.9
DESIGN SPECIFICATIONS (CONT)
INTRO EXE. SUMMARY SIMULATION FEATURES CONCLUSION
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SIMULATIONWGS Reactor Design
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GOVERNING EQUATIONS
Conversion and Temperature Correlations
H
TTC p
)(
x 0''
CO
INTRO EXE. SUMMARY SIMULATION FEATURES CONCLUSION
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GOVERNING EQUATIONS (CONT)
Rate Law
)1(20
mOH
nCO
RT
E
CO CCekr
INTRO EXE. SUMMARY SIMULATION FEATURES CONCLUSION
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GOVERNING EQUATIONS (CONT)
Design Equation
x
COCO r
dxFW
00
bulk
WV
INTRO EXE. SUMMARY SIMULATION FEATURES CONCLUSION
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ASSUMPTIONS
No deactivation of catalyst
Ideal gas condition
Mixture properties
Catalyst packing
INTRO EXE. SUMMARY SIMULATION FEATURES CONCLUSION
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METHODOLOGY
Conversion iterates from 0
Reaction rate under this conversion
Plotting 1/rate versus
conversion
Calculating area under
Volume of catalyst
INTRO EXE. SUMMARY SIMULATION FEATURES CONCLUSION
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SIMULATION RESULTS• The highest conversion for HTS inlet temperature 320.000000 Celsius is
0.810000 outlet temperature 362.849043 Celsius
• The highest conversion for LTS inlet temperature 200.000000 Celsius is 0.990500 outlet temperature 208.682034 Celsius
• HTS reactor volume is 88.687919 m^3 • LTS reactor volume is 18.837752 m^3• Total volume is 107.525670 m^3
• HTS reactor pressure drop is 14807.220752 Pa • LTS reactor pressure drop is 2505.309835 Pa• Total pressure drop is 17312.530587 Pa
INTRO EXE. SUMMARY SIMULATION FEATURES CONCLUSION
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SIMULATION RESULTS
INTRO EXE. SUMMARY SIMULATION FEATURES CONCLUSION
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FEATURESWGS Reactor Design
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FEATURES
Features
Reactor volume
Operating temperature
CO2 Removal
Easy Operation
INTRO EXE. SUMMARY SIMULATION FEATURES CONCLUSION
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FEATURES (CONT)
•115.03 m3
•7% overdesign•Cost consideration•Relatively small•Height diameter ratio = 2:1
Reactor
Volume
INTRO EXE. SUMMARY SIMULATION FEATURES CONCLUSION
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FEATURES (CONT)
•HTS: 320 – 363 OC LTS: 200 – 209 OC•Relatively low temperature•Energy saving•Preventing sintering
Operating Temperatur
e
•CO conversion enhancement•Easy Operation
OthersINTRO EXE. SUMMARY SIMULATION FEATURES CONCLUSION
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CONCLUSIONWGS Reactor Design
INTRO EXE. SUMMARY SIMULATION FEATURES CONCLUSION