Amine technology An attractive solution for CCS in the ...

© 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


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


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


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


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)



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



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



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



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


3D model of CO2 capture

plant and liquefaction plant

installed at Norcem Brevik


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


Presented by Lars-André Tokheim at Int. CCS Conference, Langesund 20-21 May 2015


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



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Disclaimer This Presentation includes and is based, inter alia, on forward-looking information and statements that are subject to risks and

uncertainties that could cause actual results to differ. These statements and this Presentation are based on current expectations,

estimates and projections about global economic conditions, the economic conditions of the regions and industries that are major

markets for Aker Solutions ASA and Aker Solutions ASA’s (including subsidiaries and affiliates) lines of business. These expectations,

estimates and projections are generally identifiable by statements containing words such as “expects”, “believes”, “estimates” or similar

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Amine technology An attractive solution for CCS in the ...

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