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part of Aker
2011 Aker Solutions
Zero Emission Power Production forLNG Regasification
A concept for new environmental friendly regasication technology
Suthan Vivekananthan MEng CEng MIChemE (UK)Senior Process Engineer System Design Dept.
Presented at the2nd Trondheim Gas Technology Conference
3rd November 2011
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CONTENTS
1. Introduction to Aker Solutions & BAs
2. Study Background
3. Reference Case
4. Study Results
5. Future work
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Aker SolutionsOperating businesses
Engineering solutions Product solutions Field life solutions
Engineering Subsea
Mooring &Loading Systems
DrillingTechnologies
ProcessSystems
Well InterventionServices
Oilfield Services &Marine Assets
Maintenance,Modifications &Operations
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Business ManagementCorporate structure
Engineering(ENG)
Subsea(SUB)
DrillingTechnologies(DRT)
Mooring &LoadingSystems(MLS)
ProcessSystems(PRS)
WellInterventionServices(WIS)
OilfieldServices &MarineAssets(OMA)
Maintenance,Modifications& Operations(MMO)
Executive Chairmanyvind Eriksen
CorporateCentrePresident
1
andChief Financial OfficerLeif Borge
1 President of Aker Solutions ASA
Chief Operating OfficerChief of Staff
Chief Strategic MarketingChief Technology OfficerChief HR Officer
ValborgLundegaard
AlanBrunnen
Thor ArneHverstad
LeifHaukom
MichaelHambly
WolfgangPuennel
Karl ErikKjelstad
ToreSjursen
Umbilicals(UMB)
ToveRskaft
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Engineering BA Management
Head of
EngineeringValborg
Lundegaard
Future hubsEngineering UK
(AET Ltd)Erik Sjlie
Engineering India(APG)
Sanjay Joshi
EngineeringMalaysia (AEM)Ravi Kashyap
Chief of StaffGry Braathen
CFOMerete senden
QM & HSEKnut StleHanssen
BusinessDevelopmentPetter Urdahl
AET Eng ineering&Project Mgmt
Ast rid S. Onsum
AET Front-End&Technology
Henning stvig
System DesignDept.
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CONTENTS
1. Introduction to Aker Solutions & BAs
2. Study Background: Introduction
Study Motivation Study aims
3. Reference Case: Comparision with Adriatic LNG Terminal
4. Study Results: Equipment design Technology status Layout design Weight / Cost estimates
5. Future work
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Study Background: Introduction
LNG Regasification Process turns the cold LNG into Natural Gas so thatit can be given to the End User.
Traditionally 2 different methods are used for LNG Regasification: Submerged Combustion Vaporisers (SCVs) using a burner as
the heat source Open Rack Vaporisers (ORVs) using sea water as the heatsource
But both methods have a negative impact on the environment: SCVs: Emission of flue gases containing NOx , CO, CO2 ORVs: Discharge of large volumes of seawater containing hypo-
chlorite and at up to 10C colder than the seawater intaketemperature
LNG VaporiserLNG feed Natural Gas
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Study Motivation (External)
Global warming due to increase in human emissions of CO2 require newenvironmentally friendly products
Kyoto agreement
EU 2020 Goal
There is an existing and growing market on offshore and onshore LNGRegas terminals
There are restrictions on planning and building of LNG Regas terminalsdue to environmental regulations
Upcoming new technology for environmentally friendly large scaleenergy production:
Post-combustion (ACC) Available technology Pre-combustion Future Technology Oxyfuel Emerging Technology
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Study Motivation (Internal)
Aker Solutions controls the entire CO2 value chain Aker Clean Carbon (ACC) owns technology on CO2 capture
CO2 from NG
CO2 injection (Subsea/platform)
Aker Solutions has built two-third of worlds offshore GBS structures This Regas terminal is assumed to be built on GBS
Experience on major onshore LNG regasification terminals
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Study Aims
Design a NEW environmental friendly LNG Regas terminal that does notproduce any emission or effluents
Power generation with CO2 separation (minimal harmful emissions) No discharges to sea
This new technology will be a realcompetitor to the traditional LNG Regasmarket, in the areas where stricterenvironmental restrictions are enforced.
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CONTENTS
1. Introduction to Aker Solutions & BAs
2. Study Background: Introduction
Study Motivation Study aims
3. Reference Case: Comparision with Adriatic LNG Terminal
Base Case Process4. Study Results:
Equipment design Technology status Layout design Weight / Cost estimates
5. Future work
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Adriatic LNG Terminal OverviewAdriatic LNG Terminal Overview
Design
Gravity-base structure (GBS) designed by Aker Solutions
Technical Features
The structure is 180 m x 88 m
LNG Regas process using four ORVs (seawater) + one SCV (waste heater boiler)
Located 15 km off the east coast of Italy.
Placed on the seabed in a water depth of approximately 30 metres.
Pipes which transport gas to land
Adriatic LNG Regas Process
25 million Sm3/day of sales gas
Equals 8 billion Sm
3
/year 5.9 MTPY
Other existing Regas terminals are: 0 5 MTPY
*MTPY = Million Tonnes Per Year
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Overall Block Flow Diagram - Base Case
CO2Dehydration &
Compression23
CO2 Product toExport / Injection
Fuel gasfor Power
LNG Feed
LNG Pumps
Sales GasExport
Steam & PowerGeneration
55
Fluegas
Air SeparationUnit (ASU)
55
O2Air
ElectricPower
N2 toExport
N2/O2/CO2Vent
32MW
CO2 Capture
Cooling
Flue Gas
Cooling
LNG Vaporising
(by LP Steam)
Water
773t/d
( 232000tonnes/year)
25 Mill.
Sm3/dayLNG Vaporising
(by Condensed
Steam)
LP Steamto usersLP Steam
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Design Features
New LNG Regas Process Systems: Air Separation Unit Produce Oxygen Oxygen Fired Burner (Oxyfuel) Clean combustion Onboard Steam & Power System Power plant CO2 Removal System Flue gas (CO2 / Water) CO2 Compression / Export CO2 for EOR/Injection
Regas Facili ty Features: Utilises the heat integration between
the LNG gasification process and thepower generation and CO2separation process
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CONTENTS
1. Introduction to Aker Solutions & BAs
2. Study Background: Introduction
Study Motivation Study aims
3. Reference Case:
4. Study Results: Equipment design Technology status Layout design Weight / Cost estimates
5. Future work
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Equipment Design: LNG Regas Process
CO2 Clean Up&
Compression23
CO2 Product toExport / Injection
Fuel gasfor Power
LNG Feed
LNG Pumps
Nat. GasExport
Steam & PowerGeneration
55
Fluegas
Air SeparationUnit (ASU)
47
O2Air
ElectricPower
BFWSteamCondensate
N2 to Export N2/O2/CO2Vent
1688 m3/hr(Actual flow)
CO2 Dehydration
& compression
Cooling
Flue Gas
Condensing
LNG Vaporising
(by LP Steam)
Produced
Water
25 Million
Sm3/dayLNG Vaporising
(by Condensed
Steam)
LP Steamto usersLP Steam
Vertical pump
5 operating + 1 spare
LNG Vaporisers
Designed &Supplied byCryostar / Linde
Spiral wounded tubespassing through a waterbathHeating medium: Steam/Condensate4 exchangers in parallel
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Equipment Design: Air Separation Unit
CO2 Clean Up&
Compression23
CO2 Product toExport / Injection
Fuel gasfor Power
LNG Feed
LNG Pumps
Nat. GasExport
Steam & PowerGeneration
55
FluegasAir Separation
Unit (ASU)
47
O2Air
BFWSteamCondensate
N2 to Export N2/O2/CO2Vent
1688 m3/hr(Actual flow)
CO2 dehydration
Cooling
Flue Gas
Condensing
LNG Vaporising
(by LP Steam)
Produced
Water
0,4 Mil l. Sm3/day
25 Million
Sm3/dayLNG Vaporising
(by Condensed
Steam)
LP Steamto usersLP Steam
Designed & Suppliedby Linde
Oxygen plant (95% purity)
Gaseous O2 production
Possible N2 (gas) productionAir cooled water circulationintercooling system
Based on onshore design can be tailor made forOffshore
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Equipment Design: Steam & Power System
CO2 dehydration&
Compression23
CO2 Product toExport / Injection
Fuel gasfor Power
LNG Feed
LNG Pumps
Nat. GasExport
Steam & PowerGeneration
55
FluegasAir Separation
Unit (ASU)
47
O2Air
BFWSteamCondensate
N2 to Export N2/O2/CO2Vent
1688 m3/hr(Actual flow)
CO2 Clean up
Cooling
Flue Gas
Condensing
LNG Vaporising
(by LP Steam)
Produced
Water
25 Million
Sm3/dayLNG Vaporising
(by Condensed
Steam)
LP Steamto usersLP Steam
ST design : Alstom Power
Condensing Steam Turbine
Commercially available
Condensate cooled by LNGcold (Cryostar/Lindes Water-bath technology)
ElectricPower
Boiler design: lborg boilers
Offshore boiler design w/ econ
Economizers reduce fuel cons. by10%
40 bara & 400oC MP steam
Can be modified to fit Oxyfuel
burner
Oxyfuel burner: Vendor TBC
Separate study by SINTEF
Burners not commercially available
Major developments ongoing
3 suppliers tested natural gas fired oxyfuelburners:Air Liquide, Jupieter Oxygen Corp &
Clean Energy Systems
Flue gas Fans: HowdenBoth fans (FG Fan and FGRecycle Fan) commerciallyavailable
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Equipment Design: CO2 Removal Unit
CO2 Dehydration&
Compression23
CO2 Product toExport / Injection
Fuel gasfor Power
LNG Feed
LNG Pumps
Nat. GasExport
Steam & PowerGeneration
55
FluegasAir Separation
Unit (ASU)
47
O2Air
BFWSteamCondensate
N2 to Export N2/O2/CO2Vent
1688 m3/hr(Actual flow)
CO2 Clean up
Cooling
Flue Gas
Condensing
LNG Vaporising
(by LP Steam)
ProducedWater
0,4 Mil l. Sm3/day
25 Million
Sm3/dayLNG Vaporising
(by Condensed
Steam)
LP Steamto usersLP Steam
Intercoolers design:in-house
As described before
ST type Using LNG cold
MEG/Water as heat transfermedium for cooling to +5oCfor compressor intercooling
Methanol as heat transfermedium for cooling CO2 to -40oC for cryogenic separation
Cold separator design: in-house
Separates condensed CO2from nitrogen / oxygen at -40oC.
Commercially availableseparation technology
Compressor design: ManTurbo / Dresser Rand
Centrifugal 3-stagecompressor
Commercially available
Vendor can also supply CO2pump
N2
CO2
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Process Technology Status
NoneSteam Generator Technology
Exists
Power Generation system
NoneExisting TechnologyUtilities and off sites
Equipment and System
Integration needs to beQualified
Some heat exchanger
equipment NOT off the shelfavailable
Heat Integration System
Application and SystemIntegration needs to beQualified
Known Technology Elements
New Application
Ref. to Statoil Krst, BIGCCS
Cryogenic CO2 LiquefactionSystem
Boiler vendor and OxyfuelBurner vendor liaising witheach other to develop thesteam generation technology
Existing TechnologySteam Generation System
Technology development forlarger scale. TechnologyQualification required.
Semi commercial. Small scalepilot plants NG 30MW exists.
Ref. to Statoil Krst, BIGCCS
Oxygen Fired Burner (Oxyfuel)
Qualification for offshore useExisting Technology foronshore plats
Air Separation UnitRequired workStatusProcess System
OverallOverall system need:system need: IdentificationIdentification andand verification of theverification of the plant operation andplant operation and flexibility.flexibility.
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Layout Design
Basis for layout: GBS dimensions based on Adriatic (180m long x 88m wide) 2 x LNG storage tanks of 125,000m3 / tank Equipment list developed by process
Layout philosophy: Topsides design to be inherently safe with segregation of hazardous
and non hazardous system LQ and utility areas located upwind of process facilities Fire / blast wall provided between process and utility areas Topsides modules split into system packages to reduce interface and
hook-up and allow parallel fabrication activities
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Layout Design
Iso view of Regas Topsides
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Weight/Cost Estimate:
Reference Case is As-Built figures for a comparable Regasification facility,scaled to 2010 price-level figures.
The above figures exclude the cost of GBS:
The GBS size for the Base Case is same as for Reference case henceGBS costs are excluded for comparision
Evaluation Summary : The cost of new Regasification terminal (with CO2 separation) is comparable
with the existing Regas terminals without CO2 capture.
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CONTENTS
1. Introduction to Aker Solutions & BAs
2. Study Background: Introduction
Study Motivation Study aims
3. Reference Case:
4. Study Results: Equipment design Technology status Layout design Weight / Cost estimates
5. Future Work
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Future Work
Further development of the Patented Regas Technology Assistance with technology maturity
To feasibility stage with operational, functional description and safety Detailed benchmarking against Adriatic
Identify marketing challenges for the New Regas Technology Identify potential partners for joint-development / Govt. bodies for
funding the following tasks:
Technology Verification
Pilot Test Programs FEED
Develop Technology Qualification Plan with partners
Involve potential test sites in further planning
Identi fy relevant proposed projects for the New Regas Terminal Possible Locations / prospects
O
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THANK YOU !
ANY QUESTIONS?
Contact details:[email protected]
O
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Copyright
Copyright of all published material including photographs, drawings and images in this documentremains vested in Aker Solutions and third party contributors as appropriate. Accordingly, neither thewhole nor any part of this document shall be reproduced in any form nor used in any manner withoutexpress prior permission and applicable acknowledgements. No trademark, copyright or other noticeshall be altered or removed from any reproduction.
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