SOFC PFD. Fuel Preparation Desulfurizer (DS-101) 2 ppm H 2 S in natural gas feed H 2 S removed in...
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Transcript of SOFC PFD. Fuel Preparation Desulfurizer (DS-101) 2 ppm H 2 S in natural gas feed H 2 S removed in...
SOFC PFD
R 104
CO
MB
105
R 104
CO
MB
105
FC 331HX 103
HX 221
WGS222
DS101
WP 441 HX 443
HX 223
FH 102
PSA 442
103
101
105
104
106
110
107
108
109
102
221
226
225
227
229
228
330
331
224
223
222
445a
440
447
446a
444
443
441442
P 444
COMP 224
111
445b
446b
COMP 445
COMP 447
DS 101 FH 102 HX 103 R 104 COMB 105 HX 221 WGS 222 HX 223 COMP 224 FC 331 WP 441 PSA 442 HX 443 P-444 Comp-445 Ref-446 Comp-447Desulfur
izerFuel
HumidifierFuel
PreheaterReformer Combustor Cathode
Recuperator
Water Gas Shift Reactor
Air Preheater
Air Compressor
Solid Oxide
Fuel Cell
Water Purifier
Pressure Swing
Absorber
Anode Condenser
Water Pump
PSA Compressor
Chiller Hydrogen Compressor
Ref 446
Fuel PreparationR
104
CO
MB
105
R 104
CO
MB
105
HX 103DS101
FH 102103
101
105
104
106
110
107
109
102
227
330
331111
442
108
Desulfurizer (DS-101)
• 2 ppm H2S in natural gas feed
• H2S removed in DS-101 with disposable carbon filters
• 10% of CH4 fed to combustor
• 90% of CH4 fed fuel humidifier
Fuel Humidifier (FH-102)
• 1.25 Kmol H20 per Kmol CH4 fed to FH-102
• Heat provided from combustor exhaust
Reformer (R-104)
• Equilibrium determined to be:– 85% CH4 → CO
– 15% CH4 → CO2
• CH4 + H2O → CO + 3H2
• CH4 + 2H2O → CO2 + 4H2
• Heat provided from reaction in combustor
Combustor (COMB -105)
• Extent of reaction for combustion assumed to be 100%
• CH4 + 2O2 → CO2 + 2H2O
• Necessary O2 provided from fuel cell air exhaust
Post Processing
WP 441 HX 443 PSA 442
229
223
445a
440
447
446a
444
443
441442
P 444
445b
446b
COMP 445
COMP 447
Ref 446