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Overview of Oxycombustion Technology

Overview of Oxycombustion Technology. ASME PTC 4.5 Kick-off Meeting Orlando, Florida December 16, 2010. D.K. McDonald, Technical Fellow, Babcock & Wilcox Co.

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Overview of Oxycombustion Technology

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  1. Overview of Oxycombustion Technology ASME PTC 4.5 Kick-off Meeting Orlando, Florida December 16, 2010 D.K. McDonald, Technical Fellow, Babcock & Wilcox Co.

  2. Oxy-combustion burns coal with a mixture of oxygen and recycled flue gas instead of air to produce a concentrated CO2 stream for storage

  3. Oxy-Coal Plant Configuration ASU Boiler Island CPU Nitrogen (N2 )Out Recycled Flue Gas EnvironmentalCleanup Equipment Pure Oxygen(O2 ) CO2 andFlue Gas Air In AirSeparationUnit Boiler CO2Compression H2O SO2 Ash CO2 Capture(liquid) Other CapturedEmissions Coal In Other gases (NCGs)

  4. Oxy-Coal Plant Configurations ASU PJFF Gas Htr WFGD To Storage Very High Sulfur Coals Secondary (FD) Fan Air Intake CPU Recycle Damper Sorbent for SO3 Recycle Heater Gas Cooler WFGD/ DCC Boiler Burners ID Fan Recycle Damper Coal Primary Fan Air Intake Cold Recycle Process Pulverizers

  5. Oxy-Coal Plant Configurations ASU PJFF Gas Htr Gas Htr WFGD To Storage High Sulfur Coals Secondary (FD) Fan CPU Vent Air Intake Stack Damper CPU Secondary Recycle Damper Sorbent for SO3 Recycle Heater Gas Cooler WFGD/ DCC Boiler Burners ID Fan Primary Recycle Damper Coal Primary Fan Air Intake Cool Recycle Process Pulverizers

  6. Oxy-Coal Plant Configurations ASU PJFF Gas Htr SDA To Storage Medium Sulfur Coals Secondary (FD) Fan Air Intake CPU Vent Stack Damper CPU Secondary Recycle Damper Recycle Heater WFGD/ DCC Gas Cooler Boiler Burners ID Fan Primary Recycle Damper Coal Primary Fan Air Intake Cool Recycle Process Pulverizers

  7. Oxy-Coal Plant Configurations ASU PJFF PJFF Gas Htr SDA To Storage Secondary (FD) Fan Low Sulfur Coals Air Intake CPU Recycle Damper Recycle Heater DCCPS Gas Cooler Boiler Burners ID Fan Recycle Damper Coal Primary Fan Air Intake Warm Recycle Process Pulverizers

  8. Oxy-Coal Air Emissions

  9. Benefits of Oxy-Coal Combustion • Oxy-combustion is potentially the highest efficiency and lowest cost CO2 capture technology for coal fired plants* • Near Zero Emissions of criteria air pollutants (NZEP) • >90% CO2 capture at pipeline quality and purity specifications • Low technology risk – plant components are primarily conventional equipment modified for operation in the oxy-mode. An oxy-plant will look and operate like a conventional power plant. • Can be retrofit as easily as post combustion capture • Same existing plant equipment and space requirements • No LP steam requirement (output can be increased by heat integration) • No new chemicals or solvents • Unique operating options to can maximize output during the day * DOE/NETL 2007-1291 Rev. 2, August 2008, “Pulverized Coal Oxy-combustion Power plants” DOE/NETL 2007-1281 Rev.1, August 2007 “Cost and Performance Baseline for Fossil Energy Plants”

  10. FutureGen 2.0 – Oxy-Combustion Project • Project Structure • Capture – Ameren Energy Resources (AER), teamed with B&W and Air Liquide • Transport & Storage – FutureGen Alliance • Meredosia Plant • Meredosia, IL: Owned/operated by AER • 3-coal fired units (2 retired) • 1-oil-fired unit • 200 MWe oil-fired Unit 4 built in 1975 • Repower Unit 4 steam-turbine • Purpose-built Oxy-PC boiler • Illinois Coal, PRB or PRB blends • Project Timeline • Expect project award by Sept. 30, 2010 • Phased approach to develop project • Commission by end of 2015 CPU Boiler Island ASU

  11. Meredosia Clean Coal Facility Direct Contact Cooler/ Polishing Scrubber B&W Boiler Air/Recycle Heater Flue Gas to CPU Main WFGD CPU Cold Box CPU Temperature Swing Absorption Fabric Filter Pulverizers ASU Temperature Swing Absorption Liquid Oxygen Storage ID Fan ASU Air Filter ASU Cold Box 2-Stage Direct Contact Cooler ASU Main Heat Exchanger

  12. ASU ASU booster Oxygen Piping to Boiler ASU cold box ASU main heat exchanger ASU nitrogen/water tower ASU Front End Temperature Swing Absorption ASU air filter ASU 2-stage Direct Contact Air Cooler ASU Main Air compressor BFW preheater

  13. CPU CPU Flue Gas Filter CPU Flue Gas and CO2 compressor CPU inlet pipe CPU Front Temperature Swing Absorption CPU Non-condensed gas Expanders CPU cold box CPU Main heat exchanger CPU CO2 Pumps

  14. Comparison of Net Plant Efficiency for Carbon Capture Technologies

  15. Comparison of Levelized COE for Carbon Capture Technologies

  16. “We are passionate about innovation and technology leadership” BABCOCK.COM

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