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MARKETS & APPLICATIONS
Elliott Compression Solutions for LNG
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Over the years, Elliott has contributed to many industry-leading innovations in LNG service:� Theworld’sfirstbase-loadLNGplantrefrigerationcompressors.
� Theworld’sfirstgasturbine-drivencompressorsinanLNGplant.
� Theworld’sfirstmixedrefrigerantprocessLNGplant.
� Theworld’sfirstuseofalargeframe,horizontallysplit,centrifugalcompressorinpropanerefrigerationservice.
� Theworld’sfirstuseofvariablefrequencysynchronousmotorstartersforlargeframegasturbinesdrivingmainrefrigerationcompressors.
� Theworld’sfirstdualmixedrefrigerantcompressorservice.
� Apatentedadjustableinletguidevane(AIGV)systemtoefficientlycontrolinletflowandpressureinboiloffgas(BOG)applications.
■ A Pioneer in LnG refriGerAtion ComPression
Fromthebeginningofthecommercialmarketforliquifiednaturalgas(LNG)in1964,ElliottGrouphasbeenapremiersupplierofrefrigerationcompressorsforbaseloadLNGplants.OurheritageinrefrigerationcompressortechnologyevolvedfromourassociationwithCarrierCorporationbeginninginthe1950s.Today,ElliottisakeypartnerforsomeofthelargestLNGprojectsthroughouttheworld.
Elliott’srefrigerationexperienceincludesover100compressorcasinginstallationsinbase-loadLNGplantsaroundtheworld.Thesecompressorscontributeover70milliontonsperannum(MTPA)ofLNGcapacity.Elliott’slistofinstalledcompressorstotalsover3,200,000hp(2,390MW)andcontinuestogrow.Throughitsengineeringexperienceandhighlyreliableequipmentdesigns,Elliottenjoysawell-deservedreputationasaleadingsuppliertotheLNGindustry.
OurLNGcompressionsolutionsinclude:� Boiloffgas(BOG)�Mixedrefrigerant� Dualrefrigerant� Endflashgas� Propanerefrigeration� Booster
Refrigeration Process
Plant Fuel Supply
LNG Storage
Send Out PumpsStorage Pump
LiquefactionPre-Cooling Sub-Cooling
Heat Exchanger
Sepa
rato
r
Heat ExchangerHeat Exchanger
Clean/Treated Gas
Flash GasCompressor
Boil Off Gas (BOG) Compressor
Vapor Return from Ship
To Distribution
To Ship
Gas
Refrigeration
Liquid
■ eLLiott in LnG
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■ exPerienCe with LArGe frAme ComPressors
■ exPerienCe in worLd-sCALe LnG system inteGrAtion
LNGcustomerscandrawupontheprovensystemintegrationexperienceofElliott’sprojectmanagers,projectengineers,designengineers,andfieldserviceengineers.OurLNGprojectexperienceincludestheintegrationofcompressors,motors,andlargeframegasturbineswithplantDCSplatforms,andfireandgasdetectionsystems.
Elliottcoordinatessupplylogisticsamongmajorsupplierssuchasthegasturbineandvariablefrequencydrivemanufacturers.Bycarefullymanagingdeliveryandstart-upschedules,Elliottprojectmanagershelptoreducecommissioningtime.Elliott’salliancewithTri-SenSystemssimplifiestheselectionandcoordinationofmultiplecontrolsystemsinLNGfacilities.Tri-Sen’sTSxcompressorcontrolsfeatureconfigurableredundancy,advanceddiagnosticcapabilities,abuilt-inhumanmachineinterface,andrealtimeandhistoricaltrending.
Elliotthasover50yearsofprovenexperienceinlargeframecompressorapplications,includingpropaneandmixedrefrigerationservicesforLNG,propane/propyleneservicesforpetrochemicalapplications,andmanyothergasprocessingapplications.Elliott’sreliable,largeframecompressorsareengineeredtomeetthedemandingtemperatureextremesencounteredinLNGrefrigerationapplications.Thesecompressorsareavailableinbothhorizontallyandverticallysplitdesigns.
Elliott’slargesthorizontallysplitcompressordesignsarecapableofupto320,000icfm(544,000m3/h)withcasingratingsofupto400psig(27.6barg).
Elliott’sverticallysplitbarrelcompressorsaredesignedformaximumflowsof154,000icfm(261,650m3/h).ElliotthasinstallationsinRussiafordualmixedrefrigerant,high-pressureapplicationsratedover600psig(41.4barg).
88MB6-5 LNG mixed refrigerant compressor
110M6 compressor casing
60MB6I LNG mixed refrigerant compressor
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■ ComPressor seLeCtion
■ AdvAnCed desiGn tooLs
Elliottemploysthelatestengineeringdesigntechnologies,includingcomputationalfluiddynamic(CFD)analysis,finiteelementanalysis(FEA),andsolidsmodeling.
CFDandFEAprovideafull3-dimensionalanalysisofboththeaerodynamicflowpathandthestructuralmechanicsofcompressordesigns.State-of-the-artrotordynamics,compressorperformanceanddynamicsimulationprogramsareusedfordevelopingcompressorselections.Thesetoolsoptimizeawiderangeofcompressorconfigurationsincludingthosewithside-stream,doubleflow,back-to-back,andinter-cooleddesigns.
Elliott’sproprietarycompressorselectionprogramisusedinallcompressorperformancesimulations.Theprogramincorporatesdatafromsingle-stagedesignverificationtestsandactualfactoryperformancetests.Thispowerfultoolaccuratelymodelsandpredictsstageperformanceincludinginductionandextractionside-streams.
PerformanceenhancementsincludehigheraerodynamicefficienciesandlongerperformancelifetohandlethedemandingLNGserviceapplications.Elliott’spatentedAIGVdesignenablesawideperformancerangeforfixed-speedcompressors.
Elliott’slongtermrelationshipswithmajorLNGprocessdesignersareinvaluableformatchingtheprocesstothecompressorperformancecharacteristicsandoptimizingplantoutput.
Impeller inspection for a 103M3 high flow compressor
Modeling an 88MB5 compressor
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■ suPPortinG ProduCtion requirements
■ edsCAn – AnALytiCAL simuLAtion
InLNGservice,themostextremeprocessdemandsareinthepropanerefrigerationapplications.Theseapplicationsinvolvehighmolecular weights combined with lowtemperaturesandvariationsinvolumetricflowrequirements.Largevolume side-streams are common in the liquefactionprocess.
Elliott’sexperienceinthedesignofcompressorsforthesechallengingconditionsensuresanaccuratefluiddynamicdesignwithhighperformance,abroadoperatingrange,andreliablemechanicalcharacteristics.Modelingconfirmstheproperdesignofthemergingflowstreamsatsimilarvelocitylevelsforminimumpressurelossandmaximumefficiency.� Design scalability ensures performanceacrosstherangeofallpossibleapplications.
� Expertiseinmetallurgy,weldrepair,andspecialtycoatingsensuresperformanceinextremedutyapplications.
Elliott’sproprietaryEDSCANsimulationprogramisusedtoconfirmthesizingofthestarterorhelpermotorforacompressor/gasturbinetrainbyanalyzingthecompressorstringperformanceundervariouscustomerandfactoryprocessconditions.Elliotthassimulatedavarietyofoperatingconditions, including: � Start-up� Controlled & emergency shutdowns� Anti-surgevalveselectionconfirmation� Alternategasoperationssuchasnitrogenpurgeanddefrostingoperations
� Processupsetconditions� Simulationofsitestart-upconditionsforfactory
testing
SimulationsfullymodeltheperformanceoftheLNGtrain,whichenablesElliotttopredictthestart-upandrunningperformanceofthecompressor,motor,andgasturbineundersiteconditions.
88M4 & 60M4 mixed refrigerant compressors
Side-load and mainstream compressor flow
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■ mAnufACturinG CAPAbiLities
Elliottmanufacturessomeofthelargestcentrifugalcompressorsintheindustry.Theselargeframetechnologiesaredirectlyapplicabletotheproductionrequirementsoflarge-scaleLNGplants.Themaximuminletflowsfortheselargecompressorsareupto320,000icfm(544,000m3/h)inasingleflowconfiguration.
InElliott’smanufacturingfacilities,largeandpowerfulweldmentpositionersallowcontinuousweldingofcompressorcasingsbymovingthemountedcasingaroundthewelder.
TheMastercenterMillTurningMachinewasthefirstofitskindtobeinstalledintheUnitedStatesandisusedtomanufacturediaphragmsandsealhousings.
TheMasterheadMillingCenterisapowerfulmachinewhichislikeafactorywithinafactory.Thismachine’s5-axiscapabilitiesallowlayout,milling,drilling,boring,andinspectionoperations.
Thesemachiningcenters,alongwithSixSigmaandLeanManufacturingprinciples,enableElliotttoreducecycletimesforlargecompressors.
Full load LNG gas turbine/compressor test set-up
103M3 compressor casing on the masterhead
103M impeller on a 5-axis weldment positioner
■ testinG CAPAbiLities
FewcompressormanufacturershavecapabilitiesthatmatchtheextentandversatilityofElliott’stestingfacilities.� TestingtoAPI617andASMEPowerTestCode(PTC-10)requirements.
� Apermanentgasturbinetestpadincorporatingallrequiredutilitiesandnecessaryauxiliaryequipment.
� Full-loadstringtestingcapabilitieswithagasturbinedriverover100,000hp(74.6MW).
� Apermanentmotortestpadforfull-loadstringtestingover16,000hp(12MW).
�Fullvariablefrequencydrive(VFD)capabilitiesincludingcompressordriveandgasturbinestart-up.
� Customer-specifictestingcapabilitiesforLNGprocessapplications.
� GlobaltestingavailabilitywithcomprehensivetestingfacilitiesintheUnitedStatesandJapan.
Elliottmaintainsastate-of-the-artmetallurgyandmaterialsengineeringlabwithadedicatedteamofexpertsfocusedonoptimizingtheperformanceofElliottrotatingequipmentincaustic,corrosive,andextremetemperatureconditions.
Elliott’sfacilitieshaveearnedISO9001certificationbyadheringtostrictqualityassurancepracticesthroughoutthedesign,manufacture,andtestingofElliottrotatingequipmentandauxiliaryunits.
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■ eLLiott’s GLobAL serviCes
Service Parts Organization
Elliott’sISO9001certifiedServicePartsorganizationworkswithcustomerstoensureoptimalperformanceandreliabilityofallElliottequipment.ServicePartsengineersarequalifiedtoaddressthevaryingneedsofeachcustomer,includingpartsidentification,upgraderecommendations,andcustomizedpartskitsdesign.
Elliott’sServicePartsorganizationhasextensivemachiningcentersandfinishedpartsinventoriesthatallowquickmanufacturingandshipmentofparts.Emergencycustomersupportisofferedsevendaysaweekandsamedayshipmentisavailableonmostin-stockitems.
Elliott’sserviceshopsarestrategicallylocatedworldwidetoserviceandrepairElliottandnon-Elliottturbomachinery.Theserviceshopshaveextensiveexperiencerangingfrominspectionsandoverhaulstospecialtymachiningandweldrepair.
CustomertrainingclassesforoperationsandmaintenancepersonnelareofferedseveraltimesayearatElliott’sU.S.headquarters.ArrangementsmayalsobemadeforcustomizedtrainingatcustomersitesoratanyElliottfacilityorservicecenter.
Field Support
Retrofittingandreratingcompressorsinthefieldcanachievecapacityincreases,de-bottleneckingandprocessoptimization.Elliottoffersacomprehensiverangeofsupportservicesforalltypesofturbomachineryfromanymanufacturer.Elliott’sglobalservicenetworkprovidesexperiencedon-siteprojectmanagement,supervisionandskilledlabortoperforminstallation,commissioning,andstart-upactivities.Elliottoffersmaintenanceprogramsthatrangefrompreventative,routine,andemergencyservices,tolong-termserviceagreements.
88M4 low-pressure mixed refrigerant pressure compressor casing
88M6I LP/MP mixed refrigerant compressor
©2014ElliottGroup MKT.5002.0514
901 North Fourth StreetJeannette, PA 15644-1473Telephone: 724-527-2811Fax: 724-600-8442Email: info@elliott-turbo.com
www.elliott-turbo.com
Elliott Group is a global leader in the design, manufacture and service of technically advanced centrifugal com-pressors, steam turbines, power recov-er expanders and axial compressors used in the petrochemical, refining, oil & gas and process industries, as well as in power applications. Elliott Group is a wholly owned subsidiary of Ebara Cor-poration, a major industrial conglomer-ate headquartered in Tokyo, Japan.
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