exploring major opportunities and critical enabling
TRANSCRIPT
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Exploring major opportunities and critical enabling technologies for Carbon Capture
and Storage (CCS) in China
Hengwei LiuResearch Fellow
Energy Technology Innovation Policy GroupHarvard University
2009-02-24
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Outline
In Chinese context!
1
2
3
4
General Background
Conclusions
Critical CCS enabling technologies
Major CCS opportunities
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96
69
0
50
100
%
China OECD
Hard truth (1): self-reliance >90%, thirst for oil
88 92 115161
224 228 248271
317 325349
185
050
100150200250300350400
1980 1985 1990 1995 2000 2001 2002 2003 2004 2005 2006
Mt
Output Consumption
2008 Oil IDR: 52%
Energy self-reliance: (Energy Production/TPES)
China oil: output & consumption
2005
Source: China Energy Statistical Yearbook-2007
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Coal63%
Oil19%
Gas2%
Other16%
2005: 1742 Mtoe
Hard truth (2): coal will continue to dominatethe energy mix for decades to come
Coal63%
Oil21%
Gas5%
Other11%
2030: 3819 MtoeSource: WEO2007,BAU
Source: World Energy Outlook 2007
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Hard truth (3): China now no. 1 in CO2 emissions
China becomes the largest emitter in 2007
CO2 Emissions by Fuel in the Reference Scenario
82 78
Source: World Energy Outlook 2007
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Key issues for Chinese energy strategy
• How to use coal in a carbon-constrained future?
• How to ensure oil supply?
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CCS can reconcile potential conflict between coal use and climate change
’Stairways’ to China’s low-carbon future
Controlling total energy consumptionEnergy Saving
Promoting high efficiency technologiesClosing down low efficiency plants
Developing low carbon energy
Developing CCS……
No silver bullet—portfolio needed to
address climate change
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Carbon Capture and Storage (CCS)
• Post-combustion capture• Pre-combustion capture• Oxy-fuel combustion capture
• Capture • Transportation
• Pipeline• Rail• Road
• Storage
• EOR/ECBM• Deep aquifers• Depleted oil field• Deep ocean
• Key individual components are proven, but…• No full scale integrated demonstration plant• Lack of regulations for storage, longer-term liability and monitoring• High efficiency penalty and cost
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CCS in China: strategic arrangements
Key R&D Program
Key demo projects
International cooperation
Key Guiding Documents
3 “K” + I
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CCS in China: Guiding documents
National Medium-and Long-term
Science & Technology
Development Plan (2006-2020)
State Council
2006
China’s Special Science &
Technology Action in Response to Climate
Change
(2007~2020)
MOST
2007
China’s National Climate Change
Program
(2007~2010)
NDRC
2007
Formally establishes CCS as leading-edge technology
Sets the goal of the development and
dissemination of CCS
Establishes the key task of RD&D on CCS
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CCS in China: R&D programs
• National Basic Research Program of China (“973” Program)– Geologic Carbon Storage with Enhanced Oil Recovery (2006–
2011)– Total: 36 million RMB
• National High-tech Research & Development Program of China (“863” Program)– Carbon Capture and Storage (2008–2010)– Total: 30 million RMB
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China’s first IGCC project: GreenGen
Source: Shisen Xu (TPRI)
Under construction, partly funded by 863 program
(11th Five-year Plan)
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China forging ahead with carbon capture
The post-combustion capture pilot plant at Huaneng Beijing Power Plant is designed to
capture 3000 tonnes per annum of CO2
Pictures source: Qianlong
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International cooperation
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China’s CCS is still in its infancy
• Most activities are rather recent• Involving a very limited actors• Main drivers are almost exclusively in
expert circles• No elaborated policy exists so far to
promote CCS
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Outline
1
2
3
4
General Background
Conclusions
Critical CCS enabling technologies
Major CCS opportunities
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Where are the CCS opportunities?
Total: 5100 Mt
49%
7% 9% 7%
6%
4%
10%
8%
Industry28%
2005
Total: 11448 Mt (Reference Scenario)
54%
21%
11%
6%8%
2030
Power generation Transport Residential and servicesOther* Iron and steel Non-metallic mineralsChemicals and petrochemicals Other**
weo2007
CO2 emissions by sector in China
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Coal power plants implies important opportunities
601.32814
1259191.21
296
516
0
500
1000
1500
2000
2008 2015 2030
Year
GW
C oal-fired Other
792
1775
1110
28%
7%
9%7%
Power generation49%
2008~2030: new installed capacity is
982 GW(coal:657GW)
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Industry : iron and steel
10%
0
100
200
300
400
500
600
1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007
Year
Mt
Crude steel production
8%
6%
4%
10%
Iron and steel
Industry 28%
51%
12%
5%
8%
7%
17%
China
EU(25)
USA
Japan
Russia
Row
World steel CO2 emissions in 2007
Word’s largest producer
2005: 17% CO2 emission
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Industry: non-metallic minerals—The second-largest industrial energy consumer in China
Other ceramic building materials
Lime
Brick
GlassNon-
metallic minerals
Cement
536 573 597 661.04 725862.08
9701064
12361360 1400
0
200400
600
800
10001200
1400
1600
1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008
Year
Mt
8%
6%
4%
10%
Nonmetallic minerals
Industry 28%
2005: 19% CO2 emission
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Industry: Chemicals and petrochemicals—the third-largest industrial energy consumer in China
•Ammonia
•Methanol
•pet
roch
emic
als
Three main types of products 8%
6%
4%
10% Chemicals and petrochemicals
Industry 28%
• The main sources of CO2 :steam boilers and CHP plants. CO2 capture similar to that of other power plants.
• Most carbon is stored in the synthetic organic products. This carbon is only available for capture when these products are combusted
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Ammonia & Methanol
Global Ammonia Production by Feedstock, 2005
World’s largest producer
Methanol will be boosted by the increasing use of
methanol as alternative fuel
1t ammonia →~3 t CO2
1t methanol →2 t CO2
China’s planning: coal to methanol
2010: 16Mt
2015: 38Mt
2020: 66Mt
2007 production
Ammonia: 52 Mt
Methanol: 11 Mt
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Transport/Residential/Other*
• Small/scattered/mobile sources• CO2 Capture is complex and prohibitively costly• Efficiency improvement and fuel switch are preferable
options
28%
49%
Residential andservices
9%
Other*7%
Transport7%
☺
☺
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Prime candidates for CCS in China
Ammonia
Iron and steel Cement
Power Methanol
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Outline
1
2
3
4
General Background
Conclusions
Critical CCS enabling technologies
Major CCS opportunities
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Parallel & coordinated strategy needed
Manufacturing process & energy conversion process
CCS+
CCS enabling technologies
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Coal power generation: development trend
Coal
High temperature/pressure
System
integ
ration
Synga
s
Pulverized coal
Large capacity
IGCC
SC/USC
Oxy-fuel combustion
Post-combustion
Pre-combustion
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Yuhuan: a Chinese milestone
• Marking the beginning of widespread use of supercritical and ultra-supercritical technologies in Chinese power plants.
world's cleanest, most efficient and most advanced
ultra-supercritical units
Yuhuan 2×1000MW USC
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SC/USC in China
• By the end of 2008– 90 GW of SC and 11.2 GW USC units were in operation
– Over 100 GW of SC/USC units were under construction.
SC/USC going to be the mainstay of the coal power generation
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China’s capability on SC/USC: know how, doesn’t know why
• Key components depend on import • MW USC units are jointly designed and manufactured
Harbin
Shanghai
Dongfang
BoilerSteam turbine gensetSteam turbine
Sources of MW USC technologies
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IGCC in China: GreenGen
There are over 10 IGCC demonstration projects are waiting
for NDRC approval in China.
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Polygeneration: an important way for promoting IGCC development in China
ASUAir
O2
N2Combined
Cycle
Chemical plant
GasifierCoal
Syngas(CO+H2)
Electricity
methanol
CO2Separator
H2
Power generationOther Fuel cell Seque-
strationEOR/ECBMOcean storage Others
Shift reactor
Steam
CO2+H2
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Coal polygeneration in China——Yankuang 240,000 t/a methanol and 60MWe
Co-Production Demo Plant
2001-2005, 863 Program
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Coal polygeneration demonstration project(863 major project, 2006~2010)
• RMB 350 million from government• RMB 35000 million from other sources
Coal slurry gasifier(2000t/d)
Dry feeding gasifier(2000t/d)
Fuel flexible gasifier
(600-1500t/d)
Low emission GT retrofit
CTL Operation & control
System optimization & design
3 IGCC demo plants
2 Power & CTL cogeneration plants
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Gasification: leading technology in IGCC
ASU
O2
Air
N2
GasifierFuel
Syn
gas
(CO
+H2)
CO2Shift CO+H2O→CO2+H2
CO2Adsorption
H2
Gas Turbine
Steam Turbine
PowerH2
Power Island
Gasification Island
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Coal gasification technology in China
• Gasifier: ~54Texco, ~37 Shell
Hubei Zhijiang, 2000t/d shell, 2006 Shanghai, 480t/d, Texco, 1996
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13 projects, 33 gasifiers
ECUST: Opposed Multi-Burner Gasification Technology
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TPRI: Two Stage Pulverized Coal Pressure Gasification Technology
36 t/d (10 MWth ),2004
Funded by MOST in 2005
700 kg/d 1996 2000t/d, 2009
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Iron making: development trend
• Blast furnace iron-making
• Non-blast furnace iron-making
• Dominant technology
• Severe pollution
Direct reduction Smelting reduction
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Production routes for steelmaking
Schematic illustration of the BF-BOF and DR-EAF routes
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Smelting Reduction• CO: 65-70%• H2: 20-25%• CO2: 2-4%
Corex process
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Breakthrough CCS enabling technologies are needed to achieve large-scale CO2 reduction
Iron ore
Blast furnaceConverter
Rolling
Iron ore pelletizing
Washed coal Coking
Lime stone Sintering
Iron oreIron ore
Blast furnaceBlast furnaceConverterConverter
RollingRolling
Iron ore pelletizingIron oreIron ore pelletizingpelletizing
Washed coal CokingWashed coalWashed coal CokingCoking
Lime stone SinteringLime stoneLime stone SinteringSintering
7%
45%
15%
2%
21%
10%
Sinter
BF
Coke making
Converter
EF
Rolling
Steel making
Bao Steel
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Converter
Oxygen Blast Furnace
CoalOre
Limestone
Iron
Steel
Air Separation Unit
N2, Ar
O2
Air
Cogeneration units
ElectricityMethanol
Other
Off Gas (CO, H 2)
Converter
Oxygen Blast Furnace
CoalOre
Limestone
Iron
Steel
Air Separation Unit
N2, Ar
O2
Air
Cogeneration units
ElectricityMethanol
Other
Off Gas (CO, H 2)
Shift ReactorSteam
H2
Power Generation,Fuell Cell, and
Other
Sequestration or Utilization
CO 2 SeparatorSteam
H2
Power Generation,Fuell Cell, and
Other
Sequestration or Utilization
CO 2
Shift Reactor
CCS route
Polygeneration based on Oxygen Blast Furnace
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Coal
Direct Reduction Unit
Ore
Electric Arc Furnace
DRI
Steel
Gasifer
Cogeneration units
ElectricityMethanol
Other
Off Gas (CO, H2)
Air Separation Unit
O2
Air
N2, Ar
CO, H2
Reducing GasCoal
Direct Reduction Unit
Ore
Electric Arc Furnace
DRI
Steel
Gasifer
Cogeneration units
ElectricityMethanol
Other
Off Gas (CO, H2)
Shift ReactorSteam
H2
Power Generation,Fuell Cell, and
Other
Sequestration or Utilization
CO2 Separator SteamH2
Power Generation,Fuell Cell, and
Other
Sequestration or Utilization
CO2
Air Separation Unit
O2
AirAir
N2, Ar
CO, H2
Reducing Gas
Shift Reactor
CCS route
Polygeneration Based on Direct Reduction
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Converter
Smelting Reduction Unit
CoalOre
Limestone
Iron
Steel
Air Separation Unit
N2, Ar
O2
Air
Cogeneration units
ElectricityMethanol
Other
Off Gas (CO, H2)
Converter
Smelting Reduction Unit
CoalOre
Limestone
Iron
Steel
Air Separation Unit
N2, Ar
O2
Air
Cogeneration units
ElectricityMethanol
Other
Off Gas (CO, H2)
Shift ReactorSteam
H2
Power Generation,Fuell Cell, and
Other
Sequestration or Utilization
CO2 SeparatorSteam
H2
Power Generation,Fuell Cell, and
Other
Sequestration or Utilization
CO2
Shift ReactorCCS route
Polygeneration based on Smelting Reduction
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China’s Capability: Direct Reduction
0
0.2
0.4
0.6
2000 2001 2002 2003 2004 2005 2006
Year
Mt
DRI production: 2000-2006
13% of total amount
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China’s capability: Polygeneration based on Smelting Reduction
Corex-C3000 (1.5 Mt/y) & Combined Cycle (160MW)
Baosteel Started Up World‘s Largest Corex Iron-making in
2007,the second Corex start-up is scheduled for mid-2010
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China’s capability: Polygeneration based on Blast Furnace
An Steel, 300MW
2007 2007
Tai Steel, Bao Steel, Wu Steel, Lai Steel; Han Steel……
Word’s largest BFG Firing CCPP project
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• Raw Material Preparation • Clinker Making • Finishing
Crushing & Drying Additives (gypsum, fly ash, etc.)
Finish Grinding
Prepared
Grinding & Homogenizing Material
Raw Materials
Quarrying&MinningMaterial
Clinker production (Pyro-processing)
Fuels
Preparing Kiln Fuels
Cement
Raw meal
Clinker
Bagging & Transport
Cement making process
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CO2 emission analysis in cement production
50% 40% 5% 5%
CaCO3 ➝ CaO + CO2Fuel combustion
Quarry mining and transportation
Electricity
China: 0.89 t CO2 / t cement
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Oxy-fuel Combustion in Cement Kiln
Air Separation Unit
Cement Kiln
N2
Air
Fuel
Raw Material
O2Flue Gas (CO2-rich)
Clinker
Flue gas recirculation
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Ammonia & Methanol
• Ammonia industry is the largest consumer of gasification technology in China. Coal-based synthetic ammonia accounts for about 75% of total output
– Consume 50 Mt coal per year• coal-based methanol accounted for about 80% of total output.
– consume about 12 Mt coal
coalGasification
Ammonia
Methanol
Syngas
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Summary of CCS enabling technologies
Polygeneration based on Smelting Reduction
Polygeneration based on Direct Reduction
Polygeneration based on Oxygen Blast furnace
Polygeneration (IGCC)
Power
Iron&Steel Coal gasification
SC/USC
Oxy-fuel combustion in cement kiln Cement
Coal gasificationAmmonia &Methanol
Polygeneration based on Smelting Reduction
Polygeneration based on Smelting Reduction
Polygeneration based on Direct Reduction
Polygeneration based on Direct Reduction
Polygeneration based on Oxygen Blast furnace
Polygeneration based on Oxygen Blast furnace
Polygeneration (IGCC)Polygeneration (IGCC)
Power
Iron&Steel Coal gasificationCoal gasification
SC/USCSC/USC
Oxy-fuel combustion in cement kiln Cement Oxy-fuel combustion in cement kiln
Oxy-fuel combustion in cement kiln Cement
Coal gasificationCoal gasificationAmmonia &Methanol
Leading technology
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How to use coal in a C-constrained future?
coal gasification is a more efficient, cleaner and more flexible way
to use coal
GasificationSyngas
(CO+H2)
Power
FT Liquids
H2
CO
DR (steel)
Substitute NG
MTBEMethanol Olefins
…Naphtha
…Gasoline/Diesel
Fuel…
Ammonia
……
Chemicals
Coal
GASIFICATION!
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Towards a low-carbon future: China’s key technology pathway
•Coal gasification
• Polygeneration(power-chemicals &
power-steel)
•Polygeneration(power-chemicals-steel)
Integration & Optimization
CCS
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How to ensure oil supply?
• Coal production– 2005: 2200Mt (320 Mt for coking-14.5%)– 2020: >3000Mt
• 80Mt methanol = 50 Mt gasoline– Coal (to methanol) consumption : ~120 Mt – 120/3000=0.04
CTL!
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Conclusions
• Tackling coal is critical for China’s low-carbon future; CCS is of great significance for sustainable use of coal; China’s CCS is still in its infancy.
• Power, steel, cement, ammonia, and methanol sectors are prime candidates for CCS employment.
• CCS enabling technologies should be identified and a parallel & coordinated strategy between CCS and its enabling technologies should be developed.
• Coal gasification and polygeneration should be given top priority to enable CCS development in China.
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Post-Combustion
Steam
Steam TurbinePower
Boiler/Gas TurbineFuel CO2
Other gases
Flue GasCO2 Absorption
Air
CO2 concentration: 4%~15%
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Pre-Combustion
Combined cycle
Power
Air Separation Unit
N2
Air
O2
GasifierFuel CO2
H2
ShiftSyngas(CO+H2)
CO2 Adsorption
CO+H2O→CO2+H2
CO2 concentration: 15%~40%
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Oxy-fuel Combustion
Steam
Steam TurbinePower
Air Separation Unit
N2
Air
O2
Boiler/Gas TurbineFuel CO2
Other gases
Flue Gas (CO2-rich)
Flue gas recirculation
CO2 Adsorption
CO2 concentration: 70%~85%