© 2015 Aker Solutions Preferred partner
Preferred partner
Amine technology – An attractive solution for
CCS in the cement industry
CCS Workshop at DNV GL, 10th of September 2015
Jacob Nygaard Knudsen, Project Manager
Value creation
through innovation
© 2015 Aker Solutions Preferred partner
Development of Aker Solutions’ ACCTM process
■ Aker Solutions’ Advanced Carbon CaptureTM (ACCTM) process has been
developed based on 20 years design and operating experience with amine
technology
■ Several novel amine solvents have been developed through Aker Solutions’
SOLVit R&D program
■ Substantial field testing with the Mobile Test Unit (MTU) since 2008 at various
coal and natural gas fired power plants
■ Scale-up and validation of technology demonstrated through design, delivery
and operation of the amine plant at Technology Centre Mongstad (TCM)
1996 1996 1998 2007 2008 2011
Sleipner Field Kårstø Demo Study Mobile Test Unit
(MTU)
Large Scale Pilot
TCM
Kårstø CO2 Pilot
Develop – Test – Improve – Deploy
NTNU/SINTEF Lab Rig
2012
Slide 2
© 2015 Aker Solutions Preferred partner
ACC
Direct
Contact
Cooler
Flue
Gas
Fan
ACC
Absorber
Tower
Treated
Flue Gas
Flue Gas
Inlet
CO2
Compressor
CO2 to transport
ACC
Energy
Saver
ACC
Reclaimer
ACC
Reboiler
ACC
Desorber
Filter
package
ACC
Emission Control
Water Wash
&
Water Balance
Absorption
Section
Rich/Lean
Hx
Generic flow sheet of Aker Solutions ACCTM process
© 2015 Aker Solutions Preferred partner
Why CCS in the cement industry?
■ Cement industry is responsible for approx. 5% of global anthropogenic CO2
emissions
■ Cement is a raw material that is fundamental for modern life – no easy
substitute
■ CO2 emission from cement production is inevitable – approx. 60% originate
from calcination of limestone
■ Cement industry have advantages compared to other sectors: high load
factor, high CO2 content of flue gas, remotely located, etc.
September 16, 2015 Slide 4
Norcem’s cement plant in Brevik, Norway
© 2015 Aker Solutions Preferred partner
Why is amine technology an attractive solution for CCS
in the cement industry?
■ Mature carbon capture technology that is available at scale
■ Tail end process => does not interfere with the clinker burning process unlike
oxy-fuel combustion, carbonate looping, etc.
■ Flexible operation => Robust to product and load changes at the cement
plant, may bypass capture plant if required
■ Relatively high CO2 content of flue gas => compact absorber (low CAPEX) &
good energy efficiency of amine (low OPEX)
■ Often excess heat is available at cement plants that can be extracted and
used to drive the CO2 capture plant (desorption process) => low energy
penalty for carbon capture (low OPEX)
September 16, 2015 Slide 5
© 2015 Aker Solutions Preferred partner
Aker Solutions’ work with CO2 capture towards the
cement industry
■ Aker Solutions’ ACCTM technology was one of 4 technologies selected for
testing in the Norcem Carbon Capture Project (2013-2016)
■ Scope and objectives of Aker Solutions work in the Norcem project: ■ Install Aker Solutions’ Mobile Test Unit (MTU) at the Brevik plant and operate it for
six months on flue gas from the cement kiln
■ To demonstrate the feasibility of the Aker Solutions’ ACCTM process on cement kiln
flue gas with an amine solvent customised for cement plants
■ To establish process performance and confirm key operating data at realistic
operating conditions to enable scale up to full-scale application
■ Further development and qualification of technology for the cement industry in
Aker Solutions R&D programme SOLVit ■ One additional year of operation of MTU on cement flue gas
■ Further studies for Norcem ■ Further develop conceptual design for a carbon capture plant in Brevik
September 16, 2015 Slide 6
© 2015 Aker Solutions Preferred partner
Test of the ACCTM technology at Norcem’s Brevik plant
■ The first time in the world that advanced
amine technology is extensively tested in the
cement industry
■ The MTU is build to be representative of the
full-scale Aker Solutions’ ACCTM process
and allows for long term testing on real flue
gases
■ A version of Aker Solutions’ ACCTM S26
solvent, customised for cement flue gas is
tested
■ Testing started in Brevik on flue gas from
kiln no. 6 in May 2014 and is still ongoing
■ More than 16 months testing and 7000
operating hours achieved so far
September 16, 2015 Slide 7
© 2015 Aker Solutions Preferred partner
Main findings from MTU testing at Norcem
Testing of the ACCTM technology and the S26
solvent on cement flue gas at Norcem has been very
successful and amongst others shown:
■ Stable operation of carbon capture technology on
flue gas from cement kiln
■ Easy to obtain 90% CO2 capture due to high CO2
content in flue gas (17-20%)
■ Good energy efficiency demonstrated
■ Very low consumption of S26 solvent (0.15 kg/ton
CO2) for the entire campaign
■ Low build-up of degradation products i.e. heat stable
salts => low waste generation
■ Low emissions of amine (0.3-0.5 mg/Nm3) and amine
degradation products
■ High quality CO2 is produced with < 100 ppm inerts
=> CO2 fulfill specifications for transport, EOR and
storage
September 16, 2015 Slide 8
© 2015 Aker Solutions Preferred partner
Norcem case study – CO2 capture from waste heat
■ Study indicates that approx. 400.000 tons/year of CO2 can be captured from
the Brevik cement plant (nearly 50% of annual emissions) with use of waste
heat only
■ Concept also developed for capture of up to 85% of annual emissions
(715.000 tons) with waste heat only, but this requires more extensive (and
costly) heat integration
■ => Only electricity is required to drive the CO2 capture and conditioning
process. 80% of total consumption is used for CO2 compression and drying
September 16, 2015 Slide 9
3D model of CO2 capture
plant and liquefaction plant
installed at Norcem Brevik
© 2015 Aker Solutions Preferred partner
Aker Solutions ACCTM technology is competitive
■ Comparison of cost of carbon capture for different technologies performed by
Telemark University College and Tel-tek in the Norcem CO2 Capture project
■ Aker Solutions ACCTM technology comes out with lowest cost of CO2 capture
September 16, 2015 Slide 10
Presented by Lars-André Tokheim at Int. CCS Conference, Langesund 20-21 May 2015
© 2015 Aker Solutions Preferred partner
Summary
Amine technology is an attractive solution for CSS in the cement industry.
The feasibility of Aker Solutions’ ACCTM process has been demonstrated
through field testing and study work for Norcem:
■ Capture plant has minimal impact on existing clinker production line
■ Robust to load and production changes at the cement plant
■ Energy efficient and capable of utilizing low grade waste heat from cement
plant: ■ At Norcem Brevik this implies capture of approx. 400.000 tons/year CO2 (nearly
50%) without need of additional thermal energy
■ Compact and cost efficient CO2 absorption train (due to high driving forces)
compared to that of gas and coal-fired power plants
■ Aker Solutions ACCTM amine process is cost competitive to other technologies
September 16, 2015 Slide 11
© 2015 Aker Solutions Preferred partner
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Slide 12 September 16, 2015