water gas shift reactor design
DESCRIPTION
Presentation for CN2116AY0809 Sem 2TRANSCRIPT
WATER GAS SHIFT REACTOR DESIGN
CN2116 Group 28
INTRODUCTION
EXECUTIVE SUMMARY
SIMULATION
FEATURESCONCLUSION
MA HAOTIAN
LI LAN
LIU YI FEI
LUO YUSHAN YU
INTRODUCTIONWGS Reactor Design
• Hydrogen supply for mass ammonia industrial synthesis
DESIGN OBJECTIVE
INTRO EXE. SUMMARY SIMULATION FEATURES CONCLUSION
EXECUTIVE SUMMARYWGS Reactor Design
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
• Feed Composition
Component Composition (%)
CO 7
H2O 37
CO2 4
H2 42
Inert (N2) 10
DESIGN SPECIFICATIONS
INTRO EXE. SUMMARY SIMULATION FEATURES CONCLUSION
• 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
• 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
• 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
• 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
SIMULATIONWGS Reactor Design
GOVERNING EQUATIONS
Conversion and Temperature Correlations
H
TTC p
)(
x 0''
CO
INTRO EXE. SUMMARY SIMULATION FEATURES CONCLUSION
GOVERNING EQUATIONS (CONT)
Rate Law
)1(20
mOH
nCO
RT
E
CO CCekr
INTRO EXE. SUMMARY SIMULATION FEATURES CONCLUSION
GOVERNING EQUATIONS (CONT)
Design Equation
x
COCO r
dxFW
00
bulk
WV
INTRO EXE. SUMMARY SIMULATION FEATURES CONCLUSION
ASSUMPTIONS
No deactivation of catalyst
Ideal gas condition
Mixture properties
Catalyst packing
INTRO EXE. SUMMARY SIMULATION FEATURES CONCLUSION
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
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
SIMULATION RESULTS
INTRO EXE. SUMMARY SIMULATION FEATURES CONCLUSION
FEATURESWGS Reactor Design
FEATURES
Features
Reactor volume
Operating temperature
CO2 Removal
Easy Operation
INTRO EXE. SUMMARY SIMULATION FEATURES CONCLUSION
FEATURES (CONT)
•115.03 m3
•7% overdesign•Cost consideration•Relatively small•Height diameter ratio = 2:1
Reactor
Volume
INTRO EXE. SUMMARY SIMULATION FEATURES CONCLUSION
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
CONCLUSIONWGS Reactor Design
INTRO EXE. SUMMARY SIMULATION FEATURES CONCLUSION