Wartsila o e Ppt Df 2 Stroke Gas Handling

8/10/2019 Wartsila o e Ppt Df 2 Stroke Gas Handling

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FUEL GAS HANDLING SYSTEMAND BOG RELIQUEFACTION

FOR LNG CARRIEREIRIK MELAAEN

WRTSIL OIL & GAS SYSTEMS AS

1 Wrtsil 12 November 2013 Fuel Gas Handling System and BOG Reliquefaction for LNG Carrier_Eirik Melaaen


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Wrtsil Oil & Gas Systems

Agenda: BOG Reliquefaction plant

Low Pressure Gas to Engine(e.g. DFDE, 2-Stroke DFE) and BOG

Reliquefaction System

High Pressure Gas to Engine(Gas Diesel Engine) and BOG


Future concepts

12 November 2013 Fuel Gas Handling System and BOG Reliquefaction for LNG Carrier_Eirik Melaaen2 Wr ts il


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Our Expert ise in the Gas Value Chain

Exploration &development

Production

FPSOFlare recovery

Oil separation

LNG carrier

LNG liquefaction& terminal

Distribution & transportPower generation

Oil tankerwith VOC

Exploration &

Drilling

Production &

liquefaction

Transport &

storage

Receiving

terminals &regasification

Distribution &

transport to theusers

LNG fuel gas

systems for OSVs

Gensets

LNG fuel gas systems

LPG, LEG & LNG cargo

handling

On- & Offshore small

scale liquefaction

Antiflaring/VOC

Oil separation

Gas FPSO

Jetty & Floating

regasification

Bunkering & barges

Receiving terminals

Gas/LNG

distribution/logistics

Feed gas to Power

plants

LNG bunkering

& barges

LNG fuelled

vessels

Regasification(FSRU/JRU)

Small scaleliquefaction plants

LNG/LBG

LNG receivingterminal

Re-liquefaction ofBoil Off Gas,



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First free-standing small scale

LNG plant in Northern Europe

delivered March 2003.

Hamworthy EPCIC contract

with GASNOR.

Technology feasibility and

robustness thoroughly and

successfully demonstrated.

35 LNG BOG

Reliquefaction systems

Kollsnes II LNG

2 x capacity of

existing Linde plant

(Kollsnes I).

Hamworthy EPCIC

contract with

GASNOR.

Full production

August 2007.

Al Gatt ara (Hyund ai) BOG Reliquefactio nSystem (58,000 tpy )

Kollsnes II (Gasnor) LNG Plant(84,000 tpy )

Snurrevarden LNG Plant(22,000 tpy )

LNG Technology Development

Wrtsil (Hamworthy) LNG process history



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BOG RELIQUEFACTION PLANTBOG RELIQUEFACTION PLANT


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BOG to Engines or Returned to Tank

Different solutions available for LNG carrier propulsion:

1. Use BOG & LNG as fuel e.g steam turbines, dual-fuel diesel electric, dual-fuel engines


Pattern for ships using BOG & LNG as fuel for propulsion

Laden BallastBallast

Maximum

(Laden

voyage)

Minimum

(Ballast

voyage)

LNG level

in tanks

Minimum heel required for cool down of tanks

Fuel used during roundtrip

(Natural BOG & forced)

Additional LNG delivered

with full BOG


2. BOG reliquefaction, liquefy and sell excessive BOG or all LNG loaded onboard


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Boil-off gas from cargo tanks vs. Fuelgas required by the engine


Speed of the Vessel (knots)

Boil-offGas(kg/hr)

Available BOG

BO

Gconsumed

intheengine

Excess

BOG

ForcedLNG

Balance between

Vessel speed andBOG flow

Av

ailableBOG


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Mark III layout/QG


Cold box

Typical dimensions: 30 x 22,5 x 7 m (L x W x H)Equipment weights: 240 ton

LNG pumpskid N2

reserviorN2 supplyskid

BOGcompressorsPre-heater

N2companders

N2companders


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ENGINES REQUIRING LOWENGINES REQUIRING LOW

PRESSURE GASPRESSURE GAS(DFDE, 2(DFDE, 2--STROKE DFE)STROKE DFE)

AND BOG RELIQUEFACTIONAND BOG RELIQUEFACTIONPLANTPLANT


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Boil-offgas

12 November 2013 Fuel Gas Handling System and BOG Reliquefaction for LNG Carrier_Eirik Melaaen11 Wrtsil

LP-compressor

BOG Reliquefaction System (LNGRS)Low-Pressure Fuel Gas Supply System (LP FSSS)


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Wrtsil Oil & Gas Systems AS


Dual-fuel propulsion system


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ENGINES REQUIRING HIGHENGINES REQUIRING HIGH

PRESSURE GASPRESSURE GAS((GasGas DieselDiesel EngineEngine))

AND BOG RELIQUEFACTIONAND BOG RELIQUEFACTIONSYSTEMSYSTEM


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BOG Reliquefaction System (LNGRS)High-Pressure Fuel Gas Supply System (HP FGSS)

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HP-pump and Optimizer


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PFD Vaporization System


TO GAS ENGINE

HP PUMP

BRINE PUMP

LNG VAPORIZER

STEAM/HOT WATERHEATER

HIGH PRESSURE GASOR LNG FROM CARGO TANKS

CONDENSATE FROM BOG RS

Temprature: 45 10C

Pressure: Max 300 bar

Temprature: -160C

Pressure: 3-5 bar


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HP LNGpump (2)Brineheater (1)

Brinecirculationpump (2)

Pulsedamper (1)

Suctiondrum (1)

LNG vaporizer(1)

Updated Arrangement - Gas Supply System

Typical dimensions: 7 x 3 x 2 m (L x W x H)Equipment weights: Ca 25 ton

HP LNGpump (2)



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BOG Reliquefaction System (LNGRS)High-Pressure Fuel Gas Supply System (HP FGSS)


HP-compressor and HP-pump

LNGRS for excessive BOG?


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Wrtsil Oil & Gas Systems AS


Layout Burckhardt compressors + BOG Reliq plant

Typical dimensions:30 x 22,5 x 7 m (L x W x H)


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FUTURE CONCEPTSFUTURE CONCEPTSNEW MRNEW MR

TWO REFERENCES:TWO REFERENCES:NEW MR DEMONSTRATION PLANTNEW MR DEMONSTRATION PLANT 2,5 TON/DAY2,5 TON/DAY

NEWMR EGE PLANTNEWMR EGE PLANT 11 TON/DAY11 TON/DAY


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Demonstration plant 2,5 ton/hr

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New MR Process Overview



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Pictures EGE - Project



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Flow Sheet of Liquefaction Plant

12 November 201323 Wrts il

H2O & CO2removal

LNG tank

Gas

pre-

cooling

Cold Box

MR

refrigeration

unit

Pre Cooling

system

Main biomethane flow

Mixed refrigerant (MR) flow

CO2 from stripper column

Glycol cooling from pre-cooling unit

Return gas truck loading

Export LNG pump

Gas return

from trucks

Raw gasinlet

To flare gas

systemExpansion

Flare gas

H2O

&CO2

Pretreatment Liquefaction process

Storagesystem

LBG Truck

Filling station

Fuel Gas Handling System and BOG Reliquefaction for LNG Carrier_Eirik Melaaen


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BOG Reliquefaction System (LNGRS)

NewMR LP-Pressure Fuel Gas Supply System (LP FGSS)

Compressor and Forcing Vaporizer

LNGRS for excessive BOG



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Summary Wrtsil NewMR technology

BOG reliquefaction systemon LNG vessels in the fu ture

NewMR

Why?

Demonstration plant proven

to be successful

Robust

Low OPEX

Load variations

Robust main rotating

machinery with high

efficiency

Designed for unmanned

operation

Shorter delivery time

Simple energy supply,

only electric power needed

Easy and quick start up and

shut down of all systems

Standardisation of

capacities: 1,5 ton/hr, 2,5

ton/hr etc.

Supplied as modules

Refrigerant process withphase changes which reduce

the size of equipment and

piping

Simplified maintenance

Reduced CAPEX compared

to Nitrogen loop

Two references



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EIRIK MELAAENEIRIK MELAAENBusiness DevelopmentBusiness Development ManagerManager

Tel:Tel: +47 66 10 95 66+47 66 10 95 66

Mobile: +47 959 67 377Mobile: +47 959 67 377Fax:Fax: +47 815 48 510+47 815 48 510

EE--mail:mail: [email protected]@hamworthy.comWeb:Web: http://www.hamworthy.comhttp://www.hamworthy.com

Thank you for your attention!

Wartsila o e Ppt Df 2 Stroke Gas Handling

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