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The 3rd Annual World LNG SummitThe 3rd Annual World LNG Summit
99th th --1212thth December 2002, Rome, ItalyDecember 2002, Rome, Italy
Assessment of LNG Expander TechnologyAssessment of LNG Expander TechnologyHenri Henri ParadowskiParadowski
TechnipTechnip FranceFranceProcess DivisionProcess Division
Paris La Defense, FranceParis La Defense, Francehparadowskihparadowski@@techniptechnip.com.com
Samuel A. Samuel A. AfolabiAfolabiRotating Equipment EngineerRotating Equipment EngineerNigeria LNG, Bonny Island, Nigeria LNG, Bonny Island,
NigeriaNigeriaSamuel.Samuel.AfolabiAfolabi@@nlngnlng.com.com
ChenChen--HwaHwa ChiuChiuLNG Technology AdvisorLNG Technology Advisor
ChevronTexaco ChevronTexaco Bellaire, Texas , USABellaire, Texas , USA
chiuchchiuch@@chevrontexacochevrontexaco.com.com
YoshitsugiYoshitsugi KikkawaKikkawaEngineering Consultant Engineering Consultant Chiyoda CorporationChiyoda Corporation
Yokohama, Japan Yokohama, Japan [email protected][email protected]
Everett H. HyltonEverett H. HyltonPresidentPresident
Ebara International Corp.Ebara International Corp.Sparks, Nevada, USASparks, Nevada, USA
[email protected]@ebaraintl.com
Hans E. KimmelHans E. KimmelVice President R&DVice President R&D
Ebara International Corp.Ebara International Corp.Sparks, Nevada, USASparks, Nevada, USA
[email protected]@ebaraintl.com
CWC Associates Limited www.CWC Associates Limited www.thecwcgroupthecwcgroup.com.com
Origin of LNG Expander Origin of LNG Expander TechnologyTechnology
United States Patent 4,334,902United States Patent 4,334,902
Inventor: Henri Inventor: Henri ParadowskiParadowskiTechnipTechnip, Paris La Defense, France, Paris La Defense, France
Priority Date: Dec. 12, 1979Priority Date: Dec. 12, 1979France 79 30490France 79 30490
Method of and System for Method of and System for Refrigerating a Fluid to be Cooled Refrigerating a Fluid to be Cooled
Down to a Low TemperatureDown to a Low Temperature
United States Patent United States Patent 4,334,902 4,334,902 June 15, 1982June 15, 1982
Inventor: Henri Inventor: Henri ParadowskiParadowski
Method of and System for Refrigerating a Fluid to be Cooled Method of and System for Refrigerating a Fluid to be Cooled Down to a Low TemperatureDown to a Low Temperature
LNG Expander EconomicsLNG Expander Economics
LNG ExpanderPower Output
Increase inLNG Output
Increase in RevenueFor LNG Price
$266.67/tonkW Tons/year $/year1
10050010002000
606,00030,00060,000120,000
16,0001,600,0008,000,00016,000,00032,000,000
Overall Plant Process Scheme Overall Plant Process Scheme –– Typical 1995Typical 1995
MLNG Dua, Malaysia:MLNG Dua, Malaysia:
First generation LNG First generation LNG expander with airexpander with air--cooled cooled generator and rotating generator and rotating
shaft sealshaft seal19961996
(Flowserve Corp.)(Flowserve Corp.)
NLNG Nigeria:NLNG Nigeria:
First generation LNG and First generation LNG and HMR expanders with airHMR expanders with air--
cooled generator and rotating cooled generator and rotating shaft sealshaft seal
19991999
(Flowserve Corp.)(Flowserve Corp.)
NLNG Nigeria:NLNG Nigeria:
AirAir--Cooled and ExplosionCooled and Explosion--Proof Proof Induction GeneratorInduction Generator
Coupling and Coupling and
Rotating Shaft SealRotating Shaft Seal
19991999
(Flowserve Corp.)(Flowserve Corp.)
Comparison in Comparison in size and weight size and weight
between first and between first and secondsecond--
generation LNG generation LNG expandersexpanders
ThreeThree--Stage Stage Liquid Expander Liquid Expander for Oman LNGfor Oman LNG
19991999(Ebara Intl. Corp.)(Ebara Intl. Corp.)
Oman LNGOman LNGLiquefaction Process Trains 1 and 2Liquefaction Process Trains 1 and 2
Oman LNGOman LNG
MLNG Tiga, MalaysiaMLNG Tiga, Malaysia
SecondSecond--generation LNG generation LNG expander with submerged expander with submerged
generator and variable speedgenerator and variable speed20002000
(Ebara Intl. Corp.) (Ebara Intl. Corp.)
Generator RotorGenerator Rotor
Generator StatorGenerator Stator
Thrust Equalization Thrust Equalization
Mechanism (TEM)Mechanism (TEM)
Fixed Geometry Fixed Geometry
Inlet Guide VanesInlet Guide Vanes
RunnersRunners
Axial Turbine Nozzle RingAxial Turbine Nozzle Ring
Radial Turbine Nozzle RingRadial Turbine Nozzle Ring
Reaction Turbine RunnerReaction Turbine Runner
Typical Performance for Variable Speed Typical Performance for Variable Speed LNG ExpandersLNG Expanders
ThreeThree--Stage Stage Liquid Expander Liquid Expander
for Ras Laffan LNGfor Ras Laffan LNG20022002
(Ebara Intl. Corp.)(Ebara Intl. Corp.)
20022002 Third Generation: Exducer TurbineThird Generation: Exducer TurbineCross section with radial turbine and exducer stageCross section with radial turbine and exducer stage
Turbine ExducerTurbine Exducer
RunnersRunners
Fixed Geometry Fixed Geometry
Inlet Guide VanesInlet Guide Vanes
Thrust Equalizing Thrust Equalizing
Mechanism (TEM)Mechanism (TEM)
Generator StatorGenerator Stator
Generator RotorGenerator Rotor
Typical Performance for Exducer Turbine ExpandersTypical Performance for Exducer Turbine Expanders
TwoTwo--Phase Expansion at HomePhase Expansion at Home
TwoTwo--Phase Expansion in NaturePhase Expansion in Nature
Turbine ExducerTurbine Exducer
RunnerRunner
Fixed Geometry Fixed Geometry
Inlet Guide VanesInlet Guide Vanes
Thrust Equalizing Thrust Equalizing
Mechanism (TEM)Mechanism (TEM)
Generator StatorGenerator Stator
Generator RotorGenerator Rotor
20022002
TwoTwo--phase exducer with 45phase exducer with 45°° blade pitch blade pitch
TwoTwo--phase exducer with 5phase exducer with 5°° blade pitch blade pitch
Typical performance of twoTypical performance of two--phase exducer turbinephase exducer turbine
Performance field of twoPerformance field of two--phase exducer turbinephase exducer turbine
Ebara International Corporation Ebara International Corporation Headquarters and Factory Sparks, NevadaHeadquarters and Factory Sparks, Nevada
Company ProfileCompany Profile•• Established in 1973Established in 1973•• Manufacturer of liquefied gas pumps Manufacturer of liquefied gas pumps
and cryogenic liquid expandersand cryogenic liquid expanders•• Located in Sparks, Nevada, USALocated in Sparks, Nevada, USA•• Division of Ebara Corporation of JapanDivision of Ebara Corporation of Japan•• 5000 M5000 M22 factory with a liquefied gas test factory with a liquefied gas test
facilityfacility•• ISO 9001 CertifiedISO 9001 Certified
Liquefied Gas Test FacilityLiquefied Gas Test FacilityEbara Intl. Corp.Ebara Intl. Corp.
Liquefied Gas Test FacilityLiquefied Gas Test Facility
Thank YouThank You
