zero emission regasification technology (aker solutions)

7/21/2019 Zero Emission Regasification Technology (Aker Solutions)

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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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Zero emission Power Production for LNG Regasification

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2011 Aker Solutions part of Aker

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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


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




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




3. Reference Case:


5. Future work


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Equipment Design: LNG Regas Process

CO2 Clean Up&

Compression23


Fuel gasfor Power

LNG Feed

LNG Pumps

Nat. GasExport


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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


(by Condensed

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


Fuel gasfor Power

LNG Feed

LNG Pumps

Nat. GasExport


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FluegasAir Separation

Unit (ASU)

47

O2Air

BFWSteamCondensate



CO2 dehydration

Cooling

Flue Gas

Condensing

LNG Vaporising

(by LP Steam)

Produced

Water

0,4 Mil l. Sm3/day

25 Million


(by Condensed

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


Fuel gasfor Power

LNG Feed

LNG Pumps

Nat. GasExport


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Unit (ASU)

47

O2Air

BFWSteamCondensate



CO2 Clean up

Cooling

Flue Gas

Condensing

LNG Vaporising

(by LP Steam)

Produced

Water

25 Million


(by Condensed

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


Fuel gasfor Power

LNG Feed

LNG Pumps

Nat. GasExport


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Unit (ASU)

47

O2Air

BFWSteamCondensate



CO2 Clean up

Cooling

Flue Gas

Condensing

LNG Vaporising

(by LP Steam)

ProducedWater

0,4 Mil l. Sm3/day

25 Million


(by Condensed

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




3. Reference Case:


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

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THANK YOU !

ANY QUESTIONS?

Contact details:[email protected]

[email protected]

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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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