Test results on IHI advanced amine solvents, packing and ...
Transcript of Test results on IHI advanced amine solvents, packing and ...
Test results on IHI advanced amine solvents,
packing and process at 20 ton-CO2/day pilot plant
Copyright © 2017 IHI Corporation All Rights Reserved.
4th Post Combustion Capture Conference
7th September 2017
Kenji Takano1, Toshiya Matsuyama1,
Shiko Nakamura2, Hiroshi Sato2, Ryosuke Ikeda2
1: Resources, Energy & Environment Business Area, IHI Corporation2: Corporate Research & Development, IHI Corporation
Copyright © 2017 IHI Corporation All Rights Reserved.
CO2 Reduction Technologies
3
IHI’s Proven Boiler Design
Wood Biomass
Post CO2 Capture(PCC)(Chemical
Absorption)
Oxyfuel Demo. Project
Over 95%
Availability,
over 19
years
operation
Low Load
Operation
IHI USC/SC BoilerWorld’s Highest Reheat
Temp.(623℃) USC Boiler
High Load Change
Rate
CO2
Reduction
Technology
High
Efficiency
Carbon
Capture &
Storage
High
Availability
Flexible
Operation
Co-firing
with,
Renewables
20t/day Plant
Minimize the occasionsof plant stop & start
Carbon neutral
Reduce coal consumption rate
Near zero emission
Control System
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IHI CO2 Capture Technologies
4
IHI Is Developing “Oxy-Fuel Combustion” And “Post-Combustion” As CCS Technologies.
Features•Lower CO2 capture cost for full capture
•Byproduct reuse such as N2 resulting from air separation for O2
•Achievable of CO2 capture rate up to 98%
•Applicable to both existing and new power plants
Air Separation Unit
Coal
Flue Gas Recirculation H2O
O2
CO2
Air
Non-condensable Gases N2 Boiler
CO2 Processing Unit
Flue Gas Treatment
Features•Flexible design for both full capture and partial capture
•Sequential scale up by increasing the number of PCC module
•Applicable to not only Coal fired boiler but also the other use such as NG-GTCC and Biomass power plant.
•Applicable to both existing and new power plants
CO2
Coal
N2, H2O, O2
CO2 Capture
Boiler
Air
Flue Gas Treatment
2. IHI PCC Technology
(PCC: Post Combustion Capture)
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Copyright © 2017 IHI Corporation All Rights Reserved.
Issue of PCC Technology
6
The constitution ratio of the CO2 capture cost (example)
Low pressure steam
for solvent regeneration
(Energy Consumption)
The energy saving technology
is necessary
(Note) Source:FY2002 NEDO survey report
(02004342 and 02004343)
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Development of PCC Technology
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•High Efficiency Heat Recovery
•Higher CO2 Loading Operation
in Rich Amine
• High CO2 Cyclic Capacity
• Low Reaction Heat
• High Desorption Performance• High Absorption Performance
• Low Gas Pressure Drop
Advanced
Packing
System
Advanced
Solvent
Post Combustion
Capture Technology
Advanced
Process
Bench-scale Test
Flow Diagram of Advanced Process
Absorption Column Test
IHI’s key technologies of PCC
for energy saving
Outlet
Flue
Gas
Absorber Stripper
Reboiler
Condenser
Steam
Cooler
Inlet
Flue
GasBlower
CO2
Process Improvements
Copyright © 2017 IHI Corporation All Rights Reserved.
Development of Solvent
8Evaluation apparatus for solvents
・reaction analysis
・molecular dynamics simulation
・evaluation of properties
Screening on the basis of theory
and analysis
Development and demonstration on the
basis of theoretical and analytical studies by
collaboration with Waseda University
・Measurements of physical propertiesabsorption rate, desorption ratio, heat of
reaction, specific heat
Detailed evaluation
Bench scale test
stand
(50kg-CO2/day)
Operation and assessment
・Energy efficiency of CO2 capture
by bench scale test stand and Pilot plant
Feedback of
test results
IHI Solvent(ISOL-X)
Pilot plant
(20t-CO2/day)
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IHI Advanced Packing
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IHI Advanced PackingConventional Structured Packing
FLEXIPAChttp://www.koch-glitsch.com
/Document%20Library/KGSP.pdf
Montz-Pakhttp://amacs.com/wp-content
/uploads/2012/09/AMACS-Montz-
Brochure.pdf
Mellapak, MellapakPlushttp://web.ist.utl.pt/ist11061/de/Equi
pamento/Structured_Packings.pdf
➢ Thin corrugated metal plates
➢ High performance of liquid spreading
➢ Thin parallel metal plates
➢ Lower pressure drop per unit surface area
→ Increase number of plates
➢ Tendency to decrease absorption performance by
Inhomogeneous liquid spreading
Improvement of absorption rate higher than conventional packing
by modifying configuration, materials of thin plates
Copyright © 2017 IHI Corporation All Rights Reserved.
IHI advanced Process
1010
Outlet Flue Gas
Reboiler
Condenser
Steam
Cooler
Inlet Flue Gas
CO2
Lean Amine
Rich Amine
Semi-Lean
AmineSemi-Rich
Amine
Process
Improvements
Rich Amine
Lean Amine
Absorber
Stripper
Advanced
Solvent
Advanced
Process
High efficiency heat recovery
Low reaction heat
High absorption performance
Conventional process
Advanced
Packing
System
Improvement of the efficiency by designing IHI’s process on the basis of process-simulation technology
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20 ton-CO2/d Pilot Plant
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Specifications
20 ton-CO2/d Pilot Plant located at IHI's Aioi Works in Japan
The pilot plant test was started in June 2012
Item Specification
Source Gas Flue Gas of Coal-Fired Boiler
or Propane Gas Boiler
Captured CO2 20 ton-CO2/d
CO2 Capture Ratio 90%
Flue Gas Flow Rate(Normal) Max 4,000m3/h-wet
Inlet CO2 Concentration
(Dry)14-15%
Solvent Flow Rate Max 24m3/h
Steam Flow Rate Max 2,500kg/h
Packing Height of Absorption
Section
5/10/15m
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20 ton-CO2/d Pilot Plant
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Pre-cooling
tower
Pre-Treatment
tower(H18m)
Absorber(H42m)
Stripper(H21m)
FGD
Flue gas
Control room
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Packing performance tests
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Test conditions
Source Gas Flue Gas of Propane
Gas Boiler
Amine solvent ISOL-160 series
Liquid to Gas ratio 3.0 L/Nm3
CO2 concentration
of flue gas
5 %
Liquid and gas
temperature at
absorber inlet
40 degC
Outlet Flue Gas
Absorber
Inlet Flue Gas
Cooler
5 m of
Conventional
Packing
5 m of the 2nd
generation IHI
packing
5 m of the 1st
generation IHI
packing
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Packing performance tests
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Relative absorption performance of each packing type
➢ The performance of 2nd IHI packing was 1.8 times higher than
conventional packing.
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Packing performance tests
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Pressure loss per unit height of each packing type
➢ 2nd IHI packing and conventional packing were almost same pressure drop
per unit height.
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Process performance tests
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Test conditions
Source Gas Flue Gas of Propane
Gas Boiler
Amine solvent ISOL-160 series
CO2
concentration of
flue gas
14 - 15 %-dry
Liquid and gas
temperature at
absorber inlet
40 degC
Packing height of
absorber
15 m (3 different
types of packing in
each 5 m section)
CO2 capture
capacity
20 ton-CO2/d
CO2 capture ratio 90 %
Outlet Flue Gas
Absorber
Inlet Flue Gas
Cooler
5 m of
Conventional
Packing
5 m of the 2nd
generation IHI
packing
5 m of the 1st
generation IHI
packing
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Process performance tests
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Regeneration energy of each process
➢ The regeneration energy of the latest IHI process accomplished
less than 2.4 GJ/t-CO2 excluding the radiation heat.
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4. Summary & Conclusions
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➢ The absorption performance of the 2nd generation IHI
packing was 1.8 times higher than the conventional
packing with almost the same pressure loss per unit
height.
➢ The regeneration energy of the latest IHI process
achieved less than 2.4 GJ/t-CO2 excluding the
radiation heat.
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5. Future works
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Outlet Flue Gas
Absorber
Inlet Flue Gas
Cooler
5 m×3 section of
the 2nd generation
IHI packing
We are testing a new solvent with lower heat of reaction at PCC
pilot plant in Aioi Works with the 2nd generation IHI packing and
latest IHI process.
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Acknowledgements
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This study is supported by New Energy and Industrial
Technology Development Organization (NEDO), Japan,
under the program of “Strategic Innovation Program for
Energy Conservation Technologies”.