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G2 Technology four Production of Power, Water or Steam and Pipeline-ready
Pressurized CO2
K. Zanganeh, A. Shafeen, C. Salvador, and A. Beigzadeh
Oxy-combustion/G2 GroupClean Fossil Fuels
5th Oxyfuel Combustion Research Network MeetingWuhan, China, October 27-30, 2015
© Her Majesty the Queen in Right of Canada, as represented by the Minister of Natural Resources, 2015.
Overview
Background Supercritical CO2 (S-CO2) Power Cycles CanmetENERGY’s G2 Clean Fossil Fuel Technology Features
Performance
Potential Application Areas
Development Approach and Implementation Commercialization Options
Pathway & Collaboration Opportunities
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Background: Oxy-fuel Combustion R&D Efforts
1994-2004: 1st Gen oxy-fuel Combustion Systems
2004-10: 2nd & 3rd Gen Oxy-fuel Combustion Systems (hydroxy-fuel process & zero-recycle slagging combustor)
2004-09: CanCO2Integrated Research Facility
Generation 2 (G2) Clean Fossil Fuel Technology(Supercritical Oxy-fuel Combustion + S-CO2 Power Cycle)
Zero-recycle Oxy-slagging Integrated Systems
CO2 Capture, Utilization, and Impurities Impact
Current R&D Efforts
2007-11: S-CO2 Advanced Power Cycle (with US DOE’s Sandia National Labs)
2000-10: CanmetENERGY CO2 R&D ConsortiumPr
essu
rized
& A
tmos
pher
ic
2009-now: CO2 impurities studies (VLE, corrosion, etc.)
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Background: Conceptualization of G2 An outcome of a 3-year, task-shared R&D collaboration between US DOE’s
Sandia National Laboratories and CanmetENERGY under the International Nuclear Energy Research Initiative (I-NERI).
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Supercritical CO2 (S-CO2) Power Cycles Turbine inlet temperature is well matched to
different Heat Sources (Nuclear, Solar, Gas, Coal, Geo, …)
Very efficient cycles 1000 F ~ 538 C Efficiency = 43 %
1292 F ~ 700 C Efficiency = 50%
Standard Materials (Stainless Steel, Inconel, …)
High power density for energy conversion Almost 30 times smaller than steam
Modular and transportable at lower MW’s Modular configuration (10 MWe ~ 2.5m x 8m)
He Turbine
1 m
Steam Turbine
S-CO2Turbine
Relative Turbo-machinery Size Comparison (same power output)Steve Wright (2010)5
CanmetENERGY’s Solution - G2 Clean Fossil Fuel Technology
G2 Technology is a unique coupling of an innovative high-pressure supercritical oxy-combustion loop (G2-Combustion) to an advanced S-CO2 Brayton power cycle (G2-Turbine).
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• Transformational technology – Compact, Efficient, Low CAPEX & OPEX• NRCan’s proprietary technology (WO/2012/159189 – PCT/CA2011/000593) • Great prospect for scale-up and commercialization
Key Features of G2 Technology
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G2 Power Plant
Turbine Inlet Temperature oC
Impact of combustion-related and other energy
losses on efficiency
O2 energy losses @ 250 kWh/tonne of O2
G2-Combustion loop energy losses
G2 Power Plant Efficiency w/CO2 Capture
S-CO2 Brayton Cycle efficiency with no combustion lossesS-CO2 Brayton Cycle efficiency with combustion lossesS-CO2 Brayton Cycle with a 25%energy improvement in O2 productionS-CO2 Brayton Cycle efficiency with current O2 production energy losses
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more efficient O2 production will reduce the O2 energy losses
Net Power Plant Efficiencies (Coal & NG)
US DOE Report (2013)
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G2 Power Plant Estimated Total Capital Cost
US DOE Report (2013)TOC = Total Overnight CostTASC = Total As-spent Cost
800G2 NG w/CO2
Capture
1,170G2 Coal w/CO2
Capture
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G2 Power Plant Water Production Capability
US DOE Report (2013)
Raw Water Withdrawal and Consumption for incumbent Technologies
Water Recovery Rate for 500 MWth G2 Plant w/CO2 Capture (Pipeline-ready)
High Pressure Oxy-combustion:• Latent heat of water available at useful temp.• CO2 condenses to liquid at ambient heat sink
temp.
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Other Potential Applications – e.g., Steam for SAGD
www.oilsandsmagazine.com12
G2 Technology Development Approach
1. Proof-of-Concept (funded by NRCan): Components and System Development – NRCan/CanmetENERGY and Carleton University, with some in-kind support provided by: SaskPower Other organizations
2. Pre-commercial: 2 - 10 MWe Demonstration – industry driven through a consortium or partnership
3. Commercial: Stationary G2 Power Plants (10 - 250 MWe) through technology
licensing
Mobile industrial-scale G2 units (2 – 10 MWe) for unconventional oil and gas or other industrial applications
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Pilot Scale G2 System Implementation at CanmetENERGY
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Integrated G2 Pilot-scale Facility at CanmetENERGY
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Commercialization Options
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Tactical and Strategic ROI Energy Resource Development (On-shore & Off-shore)
G2 Commercialization Pathway & Collaboration Opportunities
2013
NRCan & Carleton U.
Proof of ConceptPilot Scale Plant
50-250kWth
2017
Small Pilot Demo
2-10 MWe
Large Pilot Demo
~100 MWe
Small Commercial
Plants~50-100 MWe
Large Commercial
Plants~275+ MWe
2025 2030 2035+
Demonstrates:• Combustion loop• Flue gas
processing• Turbo machinery
performance• Process control• Start-up and shut-
down procedures• Materials
performance
Demonstrates:• Component life• System operation
and control• Design for scale
up• Techno-economic
analysis
Demonstrates:• Operation of scale• Component life• Availability and
safety• Maintenance
approaches• CAPEX and OPEX
Validates:• System efficiency• CAPEX• OPEX
Industry-led (Potential funding:
Public-Private)
Industry-led Industry-led Industry-led
Commercial Mobile Plants
~10 MWe
Opportunity for Collaboration
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Opportunity for Collaboration
