oxygen production for igccoxygen production for...
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Oxygen Production for IGCCOxygen Production for IGCC
Stanley SantosStanley SantosIEA Greenhouse Gas R&D Programme
Cheltenham, UK
Instituto de Inginieria UNAM28th March 201228 March 2012
Different ASU Configuration for IGCC(S Ai P d t )(Source: Air Products)
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Simplified S h ti fSchematics of ASU for IGCCSource: Jones et. al. – Fuel Processing Technology Vol. 92 p. 1685. (2011)
Other Oxygen Production TechnologyOther Oxygen Production Technology
Stanley SantosStanley SantosIEA Greenhouse Gas R&D Programme
Cheltenham, UK
Instituto de Inginieria UNAM28th March 201228 March 2012
Other Oxygen Production Technology
ITM TECHNOLOGY (AIR Other Oxygen Production Technology
PRODUCTS)
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ITM Oxygen Membranes
• Single-stage high purity oxygen • All layers composed of the same ceramic material• Extremely selective and very fast electrochemical
transport for oxygentransport for oxygen• Very compact
Oxygen flowing from air through dense membrane
One Membrane in Module
Porous membrane support
Dense membrane
0.45 tonne/day (0 5 ton/day)
pp
Dense, slottedbackboneHot
Compressed Spacer (0.5 ton/day) module
Compressed Air
High Purity Oxygen
Spacer
Images courtesy Air Products. © Air Products. All rights reserved.
800-900oC (1500-1650oF)
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© 2011 Electric Power Research Institute, Inc. All rights reserved.
Product800 900 C (1500 1650 F)14+ bara (200+ psia)
ITM Oxygen – Wafers and Module Scale-up0.9 tonne/day
(1 ton/day) Stack
0 45 tonne/day0.45 tonne/day(0.5 ton/day)
StackProgression to C i l Si W fCommercial-Size Wafers
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© 2011 Electric Power Research Institute, Inc. All rights reserved. Images courtesy Air Products. © Air Products. All rights reserved.
Process Flow Diagram of ITM Oxygen ProductionOxygen Production
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ITM Facility in Maryland, USA(5 tonnes/day)(5 tonnes/day)
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ITM Applied to IGCC Process Flow DiagramProcess Flow Diagram
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ITM Configurations in Study: Case a
Feed AirNon-permeate, contains CO2
ExpanderCompressor ITM Options
Low Level Heat Recovery(optional)
E pp ITM Optionsa. 1-stage, direct-fired cycle,
O2 supply at 38oC (100oF)
Heat Exchange
Fuel
Non-permeate
Ox n P d t 38oC
ITM OxygenUnit
OxygenBlower
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© 2011 Electric Power Research Institute, Inc. All rights reserved.
Oxygen Product, 38oC (100oF)
Oxygen Cooling
ITM Configurations in Study: Case b
Feed AirNon-permeate, contains CO2
ExpanderCompressor
Low Level Heat Recovery(optional)
ITM OptionsExpanderp ITM Optionsb. 2-stage, direct-fired cycle,
O2 supply at 538oC (1000oF)
Heat Exchange
Fuel ITM OxygenUnit (B) Oxygen
Cooling
OxygenBlower
Non-permeate
Cooling
Oxygen Product 538oC
ITM OxygenUnit (A)
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© 2011 Electric Power Research Institute, Inc. All rights reserved.
Oxygen Product, 538oC (1000oF)
Other Oxygen Production
OTM – OXYGEN TRANSPORT Other Oxygen Production
MEMBRANE (PRAXAIR)
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Advanced Boiler ConceptAdvanced Boiler Concept
Array of OTM tubes interspersed withPatentsPatents Array of OTM tubes interspersed with steam tubes
Alternating heat source and sink will
PatentsUS 6,394,043US 6,562,104
PatentsUS 6,394,043US 6,562,104
maintain temperature profile
Flue gas recirculation not neededOTMT b
SteamTube
CO2 concentration could be 85 to 95% (dry basis) depending on the air leak and excess O2 contentFuel
CO2 +H O
Tube
2Fuel H2O
Ai
O2-DepletedAir
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Air
Process SchemeProcess Scheme
O2-Depleted AirAir Heater
Patent A li i Fil dPatent A li i Fil d
OTM Boiler
AirAir Heater
O2O2
Application FiledApplication Filed
~
SyngasExpander
OTM POx
FilterSyngas
N2
2O2
Coal Gasifier
O2CryoASU
Steam TurbinesAir
Steam
Slag
DryerCO2
W t
FGD
W t
Purif.
Impurities
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WaterCaSO4
CO2 Compressors
Water
Technology StatusOxy-CombustionTechnology StatusOxy-CombustionOxy CombustionOxy Combustion
Robust materials20,000 hrs cumulative testing of single tubes, no failures (Ambient pressure)Multiple thermal & chemical cycles
Demonstrated in multi-tube reactorDemonstrated in multi tube reactorDry flue gas 90-95% CO2, ~1%O2, balance N2 from air-leak and NG, (25ppm CO)
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Other Oxygen Production Technology
CAR – CERAMIC AUTO-Other Oxygen Production Technology
THERMAL RECOVERY (LINDE / BOC)
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(LINDE / BOC)
Separation and Production O2
b d P kit M bbased on Perosvkite Membrane
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