- catching our future

MEA campaign at TCM DA

Dr. Espen Steinseth Hamborg

Technology Manager

TCM DA

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Current CCS projects in Norway

• Sleipner• Natural gas production

• World’s first large-scale offshore CO2 separation, injection, and storage site

• 1 million ton CO2 annually since 1996

• Amine based

• Snøhvit• LNG production

• CO2 separation, injection and storage.

• 0.7 million tons annually

• Amine based

• Both applied to natural gas treatment processes!

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What differs TCM from current CCS?Gas stream

properties

Current CCS

(Natural gas treatment)

TCM

(Flue gas treatment)

CO2 partial pressuresHigh

(typically 1 – 5 barA)

Very low

(0.03 – 0.150 barA)

Oxygen contentsVery low

(0 – 0.2%)

Very high

(3 – 15%)

EmissionsLittle relevance

(closed process)

Very high relevance

(process open to atmosphere)

Trace componentsRelevance

Process degradation

High relevance

Process degradation and emissions

VolumesSmall volumes

Small equipment

Large volumes

Large equipment

• TCM drives amine based CCS technology from natural gas towards

flue gas treatment

• Results from TCM will be instrumental due to (partly) open dissemination

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Background of the MEA solvent system

• Amine systems for natural gas treatment stretches back to 1930s

• MonoEthanolAmine (MEA) is a conventional amine

• Easily available, low costs

• Well understood solvent system; kinetics, CO2 VLE, etc.

• MEA solvent: usually an aqueous mixture of 20 – 45 wt% MEA

• All patents have now expired

• Freely used by anyone, “open source amine”

• Although still used by commercial vendors with certain patented adaptions

• Results from MEA campaigns are benchmark results of

open nature, and to a large part scientifically disseminated

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Amine plant at TCM – overview

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MEA campaign – purpose & goals

• Some facts; • CO2 capture from gas fired turbines operations provides a very small CO2 footprint for

energy production, but limited data openly available

• Two MEA campaigns conducted at TCM; Dec 2013 – Feb 2014 (in collaboration with Aker Solutions), Jun 2015 – Sep 2015

• Main purpose & goal to generate results from gas turbine operations with CO2capture by investigating;• Verify mass & energy balances with upgraded instrumentations

• Revised verified baseline

• Plant capacities and CO2 capture from advanced gas power plants (EGR recycling)

• Degradation, emission, and reclaiming

• Simulation tools

• Ambient air and workplace monitoring

• Corrosion

• Further testing of refinery catalytic cracker flue gas treatment

• Results will be standing as a baseline for future vendor testing at TCM, and likely any future CCS projects based on flue gas treatment

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MEA campaign – Plant operation results

• Example: September 9th 2015, plant data

• Gas turbine flue gas flow rate: 59.500 Sm3/hr

• CO2 capture rate: ~85%

• Specific reboiler duty: 3.6 MJ/kg CO2

• CO2 production: 3300 kg/hr

• CO2 mass balance: 100±2%

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MEA campaign – Emissions results

• TCM has the most advanced and comprehensive emission monitoring and surveillance scheme, and provides experimental evidence for safe environmental impact

• Direct emissions of MEA during the campaign• Emissions of amines and potentially harmful byproducts were all within emission permits

• Online (FTIR, PTR-TOF, PTR-QMS) and offline (iso-kinetic)

• Ambient air measurements of MEA and other chemicals • In collaboration with University of Oslo

• Measurements at locations around Mongstad, based on annual weather data

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MEA campaign – Solvent handling results

• Amine solvents inherently undergo degradation processes• Some amines degrades more than others

• Degradation products builds up and gradually “disables” the solvent

• Reclaiming process necessary to maintain solvent quality and performance

Solvent before and after reclaiming

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MEA campaign – Corrosion investigation

results

• Very high importance for integrity of amine plants, aim of finding acceptable materials

• Various materials corrosion tested in aqueous 30 wt% MEA

• 304l, 316l, S235, Inconel 600, Duplex, EPDM Stellite 6, Stellite 12

• Mechanisms observed

• From no corrosion to pitting, coarse general corrosion, and total corrosion

• Some materials are well suited, others not.

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Dissemination and future activities

• Scientific dissemination and knowledge sharing a major driver for TCM

• MEA campaign data to be published at 13th Conference on Greenhouse Gas Control Technologies (GHGT) in November

• 6 abstracts submitted

• TCM provides the highest technical and scientific impact for carbon capture and CCS development!

• Future MEA campaign

• Reduction of degradation processes

• Further investigation of flue gas treatment of advanced gas turbine flue gases

• Close collaboration with Sintef

• DOCPCC project automated and intelligent amine plants

• Aerosolve project further investigations of refinery flue gas treatment

• Further open development of non-proprietary CO2 capture technology

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Thank you for your attention!!!

Acknowledgments to the personnel at Gassnova, Statoil, Shell,

Sasol, and TCM for making this MEA campaign possible!

Acknowledgments to TCM DA owners

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BACKUP SLIDES

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Mongstad energy situation

• Background for Mongstad CHP plant:

• Inefficient production of electric power at oil

rigs.

• Mongstad refinery burned gas in boilers to

produce heat

• Combined Heat and Power Plant (CHP)

• Investment decision in 2006

• Constructed on the condition of the

construction of a CO2 test centre (today TCM)

• CHP provided reduction of 300.000

tonnes/year total emissions of CO2

• Increased local emission at Mongstad