LNG Plant OptimisationLNG Plant OptimisationSeptember 20 September 20 -- 21, 200521, 2005 ·· Sheraton Imperial HotelSheraton Imperial Hotel
Kuala Lumpur, MalaysiaKuala Lumpur, Malaysia
Using LNG Expanders for Using LNG Expanders for Optimised LNG ProductionOptimised LNG Production
Joel V. MadisonJoel V. MadisonPresidentPresident
Ebara International Corporation Ebara International Corporation USAUSA
Joel V. Madison is President of Joel V. Madison is President of Ebara International Corporation, Ebara International Corporation, Cryodynamics Division, Nevada, USA. Cryodynamics Division, Nevada, USA.
He graduated from Pennsylvania State University, USA He graduated from Pennsylvania State University, USA with a Masterwith a Master’’s Degree in Mechanical and Aerospace s Degree in Mechanical and Aerospace Engineering.Engineering.
Oman LNGOman LNG
Oman LNGOman LNGLiquefaction Process Trains 1 and 2Liquefaction Process Trains 1 and 2
Typical LNG Plant Process SchemeTypical LNG Plant Process Scheme
LNG Expander EconomicsLNG Expander Economics
LNG ExpanderPower Output
Increase inLNG Output
Increase in RevenueFor LNG Price
$266.67/tonkW Tons/year $/year
110050010002000
606,00030,00060,000120,000
16,0001,600,0008,000,00016,000,00032,000,000
Reference: Gilbert Habets, Shell International Oil Products B.V. et al.:
"Economics of Cryogenic Turbine Expanders"
The International Journal of Hydrocarbon Engineering, December 1998
MLNG Dua MLNG Dua MalaysiaMalaysia
First generation LNG First generation LNG expander with airexpander with air--
cooled generator and cooled generator and rotating shaft sealrotating shaft seal
19961996(Flowserve Corp.)(Flowserve Corp.)
NLNG NigeriaNLNG Nigeria
First generation LNG First generation LNG and HMR expanders and HMR expanders
with airwith air--cooled cooled generator and rotating generator and rotating
shaft sealshaft seal
19991999
(Flowserve Corp.)(Flowserve Corp.)
First Generation Power Output = 900 kW
Total Weight = 27,000 kg. (Flowserve Corp.)
Second Generation Power Output = 1000kW Total Weight = 7,600 kg.
(Ebara Intl. Corp.)
7000 mm
3370 mm
AIR COOLED GENERATOR
SEAL, COUPLING & THRUST BEARING
TURBINE SUBMERGED
TURBINE GENERATOR
Comparison in Comparison in size and weight size and weight between first between first and second and second
generation LNG generation LNG expandersexpanders
Ebara Intl. Corp.Ebara Intl. Corp.Second Generation Second Generation
ThreeThree--Stage Stage Liquid Expander Liquid Expander
Oman LNG, June 1999Oman LNG, June 1999developed in cooperation developed in cooperation
withwith
Gilbert Habets,Gilbert Habets,
Shell International Oil Shell International Oil
Products B.V.Products B.V.
MLNG Tiga, MLNG Tiga, MalaysiaMalaysia
December 2000December 2000
SecondSecond--generation generation LNG expander with LNG expander with
submerged generator submerged generator and variable speedand variable speed(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
ThreeThree--Stage Stage Liquid Expander Liquid Expander
for Ras Laffan LNGfor Ras Laffan LNG20022002
(Ebara Intl. Corp.)(Ebara Intl. Corp.)
Since the early days of the Since the early days of the cryogenic technology it cryogenic technology it has beenhas been known thatknown that
twotwo--phase cryogenic expandersphase cryogenic expandersimprove thermodynamic efficiencyimprove thermodynamic efficiency
of gas liquefaction processes.of gas liquefaction processes.
Only in recent years is Only in recent years is the technology availablethe technology available
to operate reliably to operate reliably liquidliquid--vapour LNG expandersvapour LNG expanders
What isWhat is
TwoTwo--Phase Expansion ?Phase Expansion ?
Reference for the following four slides:Reference for the following four slides:
Improved LNG Production Process Improved LNG Production Process Using TwoUsing Two--Phase ExpandersPhase Expanders
Christian FischerChristian FischerShell Sakhalin Energy SEShell Sakhalin Energy SE--LNGLNG
Yokohama, JapanYokohama, [email protected]@ykh.chiyoda.co.jp
Hans E KimmelHans E KimmelEbara International CorporationEbara International Corporation
Sparks, Nevada, USASparks, Nevada, [email protected]@ebaraintl.com
5th Annual 'Rome' World LNG Summit5th Annual 'Rome' World LNG Summit11stst -- 33rdrd December 2004, Rome, ItalyDecember 2004, Rome, Italy
The Strategic Implications of Technological AdvanceThe Strategic Implications of Technological Advance
The CWC Group www.thecwcgroup.comThe CWC Group www.thecwcgroup.com
Sgl & Two Ph
Fig 1 Curve
Fig 2 Curve
Fig 3 Curve
TwoTwo--Phase Phase Expander Expander
with with Jet ExducerJet Exducer
Hydraulic AssemblyHydraulic Assembly
TwoTwo--Phase Jet ExducerPhase Jet Exducer
TwoTwo--Phase Jet ExducerPhase Jet Exducer
Krio Polish Oil & GasKrio Polish Oil & Gas
TwoTwo--Phase Exducer Phase Exducer Turbine Turbine
20032003
January 2003January 2003
Installation of Installation of TwoTwo--Phase Phase
Expander at Krio Expander at Krio Polish Oil & Gas Polish Oil & Gas
Odolanow, Odolanow, PolandPoland
Generator RotorGenerator Rotor
Generator StatorGenerator Stator
Thrust Equalization Thrust Equalization
Mechanism (TEM)Mechanism (TEM)
Fixed Geometry Fixed Geometry
Inlet Guide VanesInlet Guide Vanes
RunnersRunners
TwoTwo--Phase Phase Expander Expander
with with Jet ExducerJet Exducer
TwoTwo--Phase Phase Expander Expander
with with Compact Compact Assembly Assembly
ConfigurationConfiguration
TwoTwo--Phase Phase Expander Expander
with with Compact Compact Assembly Assembly
ConfigurationConfiguration
Operating Conditions
Tf H C-3
Flow rate : kg/s
111.7
Intake capacity : dm3/s
249.25
Intake capacity : m3/hr
897.30
Inlet pressure : bar abs
29.75
Inlet density : kg/m3
448
Inlet temperature : C°
-146.93
Outlet pressure : bar abs
2.7
∆ P of Turbine : bar
27.05
∆ H of Turbine : m
615.49
Number of Stages
2
Operating Conditions
Tf H C-3
Flow rate : kg/s
111.7
Intake capacity : dm3/s
249.25
Intake capacity : m3/hr
897.30
Inlet pressure : bar abs
29.75
Inlet density : kg/m3
448
Inlet temperature : C°
-146.93
Outlet pressure : bar abs
1.01
∆ P of Turbine : bar
28.74
∆ H of Turbine : m
653.94
Number of Stages
2
Operating Conditions
Tf H C-3
Operational Speed :rpm
3000
Intake capacity :m3/hr
897.30
∆ H of Turbine : m
615.49
Inlet density : kg/m3
448.00
Power Hydraulic In : kW
674
Efficiency Turbine : %
85
Efficiency Generator : %
96.5
Power Out Gen. : kW
553
BTU Removal/Hr : BTU/hr
1,888,180
Predicted Expander Eff: %
82
Reclaimed Cap. : dm3/s
2.41
Capacity Increase : %
0.97
Reclaimed Cap.: tons/day
93.28
Revenue Incr. : $/Year
$ 8,814,820
Operating Conditions
Tf H C-3
Operational Speed :rpm
3000
Intake capacity :m3/hr
897.30
∆ H of Turbine : m
653.94
Inlet density : kg/m3
448.00
Power Hydraulic In : kW
716
Efficiency Turbine : %
94
Efficiency Generator : %
96.5
Power Out Gen. : kW
652
BTU Removal/Hr : BTU/hr
2,226,208
Predicted Expander Eff: %
91
Reclaimed Cap. : dm3/s
2.84
Capacity Increase : %
1.14
Reclaimed Cap.: tons/day
109.93
Revenue Incr. : $/Year
$ 10,388,220
This presentation is based on the following publications:G.L.G.M. Habets, Shell International Oil Products B.V.H.E.Kimmel, Ebara International Corporation"Economics of Cryogenic Turbine Expanders"The International Journal of Hydrocarbon Engineering, Dec. 1998
GG.L.G.M. Habets, Shell International Oil Products B.V.H.E.Kimmel, Ebara International Corporation“Development of a Hydraulic Turbine in Liquefied Natural Gas”7th European Congress on Fluid Machinery, The Hague, The Netherlands, April 1999
R.J.A.N. van den Handel, Shell International Oil Products B.V. H.E.Kimmel, Ebara International Corporation“A New Generation of Liquid Expanders in Operation at Oman LNG”GASTECH 2000, Houston, Texas, USA, November 2000
Munir Amsyari, Zudiharto, P.T.Badak, IndonesiaJ.V.Madison, H.E.Kimmel, Ebara International Corporation“LNG Expander for Extended Operating Range in Large-Scale Liquefaction Trains”AIChE 2005 Spring National Meeting, April 10-14, Atlanta, Georgia, USA
This power point presentation can be This power point presentation can be downloaded from the following websitedownloaded from the following website
http://home.btconnect.com/EIChttp://home.btconnect.com/EIC--PublicationsPublications
