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part of Aker
© 2011 Aker Solutions
‘Zero Emission Power Production for LNG Regasification’
‘’A concept for new environmental friendly regasication technology’’
Suthan Vivekananthan MEng CEng MIChemE (UK)Senior Process Engineer – System Design Dept.
Presented at the 2nd Trondheim Gas Technology Conference
3rd November 2011
Zero emission Power Production for LNG Regasification
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© 2011 Aker Solutions part of Aker
Open
CONTENTS
1. Introduction to Aker Solutions & BAs2. Study Background3. Reference Case4. Study Results5. Future work
Zero emission Power Production for LNG Regasification
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© 2011 Aker Solutions part of Aker
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Aker Solutions Operating businesses
Engineering solutions Product solutions Field life solutions
Engineering Subsea
Mooring &Loading Systems
DrillingTechnologies
ProcessSystems
Well Intervention Services
Oilfield Services & Marine Assets
Maintenance, Modifications & Operations
Zero emission Power Production for LNG Regasification
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© 2011 Aker Solutions part of Aker
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Business ManagementCorporate structure
Engineering(ENG)
Subsea(SUB)
DrillingTechnologies(DRT)
Mooring & Loading Systems(MLS)
Process Systems(PRS)
Well Intervention Services(WIS)
Oilfield Services & Marine Assets(OMA)
Maintenance,Modifications & Operations(MMO)
Executive ChairmanØyvind Eriksen
CorporateCentre
President 1 and Chief Financial Officer
Leif Borge
1 President of Aker Solutions ASA
Chief Operating OfficerChief of StaffChief Strategic MarketingChief Technology OfficerChief HR Officer
ValborgLundegaard
Alan Brunnen
Thor ArneHåverstad
LeifHaukom
MichaelHambly
WolfgangPuennel
Karl ErikKjelstad
ToreSjursen
Umbilicals(UMB)
ToveRøskaft
Zero emission Power Production for LNG Regasification
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© 2011 Aker Solutions part of Aker
OpenEngineering BA Management
Head ofEngineering
Valborg Lundegaard
Future hubsEngineering UK
(AET Ltd)Erik Sjølie
Engineering India(APG)
Sanjay Joshi
Engineering Malaysia (AEM)Ravi Kashyap
Chief of StaffGry Braathen
CFO Merete Åsenden
QM & HSEKnut Støle Hanssen
Business DevelopmentPetter Urdahl
AET Engineering&Project Mgmt
Astrid S. Onsum
AET Front-End&Technology
Henning Østvig
System Design Dept.
Zero emission Power Production for LNG Regasification
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© 2011 Aker Solutions part of Aker
Open
CONTENTS
1. Introduction to Aker Solutions & BAs2. 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
Zero emission Power Production for LNG Regasification
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© 2011 Aker Solutions part of Aker
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Study Background: Introduction■ LNG Regasification Process turns the cold LNG into Natural Gas so that
it 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 heat
source
■ 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 10°C colder than the seawater intake temperature
LNG VaporiserLNG feed Natural Gas
Zero emission Power Production for LNG Regasification
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© 2011 Aker Solutions part of Aker
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Study Motivation (External)
■ Global warming due to increase in human emissions of CO2 require new environmentally friendly products
■ Kyoto agreement■ EU 2020 Goal■ There is an existing and growing market on offshore and onshore LNG
Regas terminals■ There are restrictions on planning and building of LNG Regas terminals
due to environmental regulations■ Upcoming new technology for environmentally friendly large scale
energy production: Post-combustion (ACC) – Available technology Pre-combustion – Future Technology Oxyfuel – Emerging Technology
Zero emission Power Production for LNG Regasification
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© 2011 Aker Solutions part of Aker
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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 world’s offshore GBS structures This Regas terminal is assumed to be built on GBS
■ Experience on major onshore LNG regasification terminals
Zero emission Power Production for LNG Regasification
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© 2011 Aker Solutions part of Aker
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Study Aims■ Design a NEW environmental friendly LNG Regas terminal that does not
produce any emission or effluents Power generation with CO2 separation (minimal harmful emissions) No discharges to sea
■ This new technology will be a real competitor to the traditional LNG Regas market, in the areas where stricterenvironmental restrictions are enforced.
Zero emission Power Production for LNG Regasification
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© 2011 Aker Solutions part of Aker
Open
CONTENTS
1. Introduction to Aker Solutions & BAs2. Study Background:
■ Introduction■ Study Motivation■ Study aims
3. Reference Case:■ Comparision with Adriatic LNG Terminal■ Base Case Process
4. Study Results:■ Equipment design■ Technology status■ Layout design■ Weight / Cost estimates
5. Future work
Zero emission Power Production for LNG Regasification
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© 2011 Aker Solutions part of Aker
Open
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 Sm3/year – 5.9 MTPY
■ Other existing Regas terminals are: 0 – 5 MTPY
*MTPY = Million Tonnes Per Year
Zero emission Power Production for LNG Regasification
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© 2011 Aker Solutions part of Aker
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Overall Block Flow Diagram - Base Case
CO2Dehydration & Compression
23
CO2 Product to Export / Injection
Fuel gas for Power
LNG Feed
LNG Pumps
Sales Gas Export
Steam & Power Generation
55
Flue gas Air Separation
Unit (ASU)55
O2Air
Electric Power
N2 to Export
N2/O2/CO2Vent
32MW
CO2 Capture
Cooling
Flue Gas
CoolingLNG Vaporising
(by LP Steam)
Water
773t/d
( 232000tonnes/year)
25 Mill.
Sm3/dayLNG Vaporising
(by Condensed
Steam)
LP Steam to usersLP Steam
Zero emission Power Production for LNG Regasification
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© 2011 Aker Solutions part of Aker
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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 Facility Features: Utilises the heat integration between
the LNG gasification process and the power generation and CO2separation process
Zero emission Power Production for LNG Regasification
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© 2011 Aker Solutions part of Aker
Open
CONTENTS
1. Introduction to Aker Solutions & BAs2. 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
Zero emission Power Production for LNG Regasification
Slide 16
© 2011 Aker Solutions part of Aker
Open
Equipment Design: LNG Regas Process
CO2 Clean Up&
Compression23
CO2 Product to Export / Injection
Fuel gas for Power
LNG Feed
LNG Pumps
Nat. Gas Export
Steam & Power Generation
55
Flue gas Air Separation
Unit (ASU)47
O2Air
Electric Power
BFW Steam CondensateN2 to Export N2/O2/CO2
Vent
1688 m3/hr (Actual flow)
CO2 Dehydration
& compression
Cooling
Flue Gas
CondensingLNG Vaporising
(by LP Steam)
Produced Water
25 Million
Sm3/dayLNG Vaporising
(by Condensed
Steam)
LP Steam to usersLP Steam
•Vertical pump
•5 operating + 1 spare
LNG Vaporisers
Designed & Supplied by Cryostar / Linde
• Spiral wounded tubes passing through a water bath•Heating medium: Steam/ Condensate•4 exchangers in parallel
Zero emission Power Production for LNG Regasification
Slide 17
© 2011 Aker Solutions part of Aker
Open
Equipment Design: Air Separation Unit
CO2 Clean Up&
Compression23
CO2 Product to Export / Injection
Fuel gas for Power
LNG Feed
LNG Pumps
Nat. Gas Export
Steam & Power Generation
55
Flue gas Air Separation
Unit (ASU)47
O2Air
BFW Steam CondensateN2 to Export N2/O2/CO2
Vent
1688 m3/hr (Actual flow)
CO2 dehydration
Cooling
Flue Gas
CondensingLNG Vaporising
(by LP Steam)
Produced Water
0,4 Mill. Sm3/day
25 Million
Sm3/dayLNG Vaporising
(by Condensed
Steam)
LP Steam to usersLP Steam
Designed & Supplied by Linde•Oxygen plant (95% purity)
•Gaseous O2 production
•Possible N2 (gas) production
•Air cooled water circulation intercooling system
•Based on onshore design –can be tailor made for Offshore
Zero emission Power Production for LNG Regasification
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© 2011 Aker Solutions part of Aker
Open
Equipment Design: Steam & Power System
CO2 dehydration&
Compression23
CO2 Product to Export / Injection
Fuel gas for Power
LNG Feed
LNG Pumps
Nat. Gas Export
Steam & Power Generation
55
Flue gas Air Separation
Unit (ASU)47
O2Air
BFW Steam CondensateN2 to Export N2/O2/CO2
Vent
1688 m3/hr (Actual flow)
CO2 Clean up
Cooling
Flue Gas
CondensingLNG Vaporising
(by LP Steam)
Produced Water
25 Million
Sm3/dayLNG Vaporising
(by Condensed
Steam)
LP Steam to usersLP Steam
ST design : Alstom Power•Condensing Steam Turbine
•Commercially available
•Condensate cooled by LNG cold (Cryostar/Linde’s Water-bath technology)
Electric Power
Boiler design: Ålborg boilers•Offshore boiler design w/ econ
•Economizers reduce fuel cons. by 10%
•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: Howden•Both fans (FG Fan and FG Recycle Fan) commercially available
Zero emission Power Production for LNG Regasification
Slide 19
© 2011 Aker Solutions part of Aker
Open
Equipment Design: CO2 Removal Unit
CO2 Dehydration&
Compression23
CO2 Product to Export / Injection
Fuel gas for Power
LNG Feed
LNG Pumps
Nat. Gas Export
Steam & Power Generation
55
Flue gas Air Separation
Unit (ASU)47
O2Air
BFW Steam Condensate
N2 to Export N2/O2/CO2Vent
1688 m3/hr (Actual flow)
CO2 Clean up
Cooling
Flue Gas
CondensingLNG Vaporising
(by LP Steam)
Produced Water
0,4 Mill. Sm3/day
25 Million
Sm3/dayLNG Vaporising
(by Condensed
Steam)
LP Steam to usersLP Steam
Intercoolers design: in-house
•As described before
•ST type –Using LNG cold
•MEG/Water as heat transfer medium for cooling to +5oC for compressor intercooling
•Methanol as heat transfer medium for cooling CO2 to -40oC for cryogenic separation
Cold separator design: in-house•Separates condensed CO2from nitrogen / oxygen at -40oC.
•Commercially available separation technology
Compressor design: Man Turbo / Dresser Rand•Centrifugal 3-stage compressor
•Commercially available
•Vendor can also supply CO2pump
N2
CO2
Zero emission Power Production for LNG Regasification
Slide 20
© 2011 Aker Solutions part of Aker
Open
Process Technology Status
NoneSteam Generator Technology Exists
Power Generation system
NoneExisting TechnologyUtilities and off sites
Equipment and System Integration needs to be Qualified
Some heat exchanger equipment NOT off the shelf available
Heat Integration System
Application and System Integration needs to be Qualified
Known Technology ElementsNew Application Ref. to Statoil Kårstø, BIGCCS
Cryogenic CO2 Liquefaction System
Boiler vendor and Oxyfuel Burner vendor liaising with each other to develop the steam generation technology
Existing TechnologySteam Generation System
Technology development for larger scale. Technology Qualification required.
Semi commercial. Small scale pilot plants NG 30MW exists.Ref. to Statoil Kårstø, BIGCCS
Oxygen Fired Burner (Oxyfuel)
Qualification for offshore useExisting Technology for onshore plats
Air Separation UnitRequired workStatusProcess System
Overall Overall system need:system need: IdentificationIdentification and and verification of theverification of the plant operation and plant operation and flexibility.flexibility.
Zero emission Power Production for LNG Regasification
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© 2011 Aker Solutions part of Aker
Open
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
Zero emission Power Production for LNG Regasification
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© 2011 Aker Solutions part of Aker
Open
Layout Design
Iso view of Regas Topsides
Zero emission Power Production for LNG Regasification
Slide 23
© 2011 Aker Solutions part of Aker
Open
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 – hence
GBS 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.
Zero emission Power Production for LNG Regasification
Slide 24
© 2011 Aker Solutions part of Aker
Open
CONTENTS
1. Introduction to Aker Solutions & BAs2. 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
Zero emission Power Production for LNG Regasification
Slide 25
© 2011 Aker Solutions part of Aker
Open
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
■ Identify relevant proposed projects for the New Regas Terminal● Possible Locations / prospects
Zero emission Power Production for LNG Regasification
Slide 26
© 2011 Aker Solutions part of Aker
Open
THANK YOU !
ANY QUESTIONS?
Contact details:Suthan.Vivekananthan@akersolutions.com
Ingjerd.Aas-Jakobsen@akersolutions.com
Zero emission Power Production for LNG Regasification
Slide 27
© 2011 Aker Solutions part of Aker
Open
Copyright
Copyright of all published material including photographs, drawings and images in this document remains vested in Aker Solutions and third party contributors as appropriate. Accordingly, neither the whole nor any part of this document shall be reproduced in any form nor used in any manner without express prior permission and applicable acknowledgements. No trademark, copyright or other notice shall be altered or removed from any reproduction.
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