Equipment and Solutions

LNG TRANSPORTATION, CARGO HANDLING AND FUELLING APPLICATIONS

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FACTORY AND ON-SITE ACCEPTANCE TESTSCryostar’s headquarters host the world’s largest and most sophis-ticated liquid nitrogen test facility for cryogenic pumps as well as three test facilities dedicated to turbines. Cryostar engineers sub-ject each pump and turbine to a performance test prior to ship-ment, offering customers guaranteed performance. Cryostar pro-vides commissioning, start-up and support for onsite performance for liquefaction plants and refueling stations.

QUALITY AND ENVIRONMENTCryostar is ISO 9001-2008 certified. To structure its environmental approach, Cryostar has used the ISO 14001 standard to set up all the organizational and operational processes necessary for an as-piring Environmentally Responsible company. In parallel, Cryostar has applied this approach to Health and Safety through the OHSAS 18001 standard. ISO 9001-2008/ ISO 14001-2004 / OHSAS 18001-2007 quality assurance system.

THE Cryostar GROUPCryostar is a cryogenic equipment manufacturer with more than 600 em-ployees including 150 engineers. With its headquarters located in France, the company operates five production sites and is present worldwide through eight business centers and 16 business partners.

Founded in 1966 the company has over 40 years experience with LNG and has become the world leader for boil off gas compressors and on-board liquefaction units for LNG carriers. The company has delivered thousands of cryogenic pumps for liquid hydrocarbon applica-tions (including methane, ethylene, ethane, etc.)

Cryostar’s engineers continuously innovate with patent-ed solutions for various applications throughout the LNG supply chain such as small scale liquefaction, LNG trans-portation, LNG/LCNG vehicle refueling stations and LNG bunkering.

CRYOSTAR USA West

CRYOSTAR Houston

CRYOSTAR BUSINESS CENTRES

GLOBAL CRYOSTAR

CRYOSTAR USA East

CRYOSTAR Brazil

CRYOSTAR United Kingdom

CRYOSTAR France

CRYOSTAR Automation

CRYOSTAR China

CRYOSTAR Singapore

CRYOSTAR India

SAFETY AND STANDARDSSafety is an integral part of Cryostar’s management and manufac-turing commitments. For each new development or project, the company performs a risk analysis using approved techniques such as HAZOP (Hazard and Operability) and FMEA (Failure Mode and Effects Analysis). Cryostar’s solutions comply with most stringent machine and safety regulations such as the Pressure Equipment Directive 97/23/CE (Module H and H1) and ATEX.“All marine equipment is Class approved before shipping and Cryo-star has experience with numerous Classification Societies.”

Small Scale Liquefaction

LNG Bunkering Station

Pressure Let Down Station

Industry

Small Scale Liquefaction

Satelite LNG Plant

Truck Stop LNGrefuelling station

LNG Feeder

LNG Floating Storageand Regasi�cation Unit

LNG Trailer

LNG Carrier

Ferry

LNG Bunkering Barge

LNG Receiving Terminal

CityFleet LNG Station

Small Town

Land�ll

Digester

Gas Pipeline

Peak Shaving Plant

CSMCBM

LCNG / LNG Station

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EQUIPMENT FOR THE MARINE TRANSPORTATION OF LNG

Boil-off gas as a fuel – LNG carriers are the cleanest ships around !

Cryostar has been supplying machinery allowing LNG carrier boil–off to be used as fuel gas since the 90’s. The natural boil-off vapour from the cargo tanks is compressed and routed to the ves-sel’s propulsion systems, providing both a clean fuel and handling the gas generated from the tank storage. Many of the improvements to enhance efficient operation of these vessels have been realised with Cryostar’s support in developing versatile, efficient and reliable machinery.

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From steam turbines to low pressure 2-stroke enginesCryostar began producing compressors to supply boilers fitted to steam turbine propelled vessels. As new propulsion technologies were proposed, close co-operation with engine makers, shipyards and ship-owners led to the most versatile designs allowing flexi-bility for operational needs.

industry-leading developments are common…

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BOIL-OFF GAS AS A FUEL

Dual fuel 4-stroke and 2-strokeThe diesel electric and low speed diesel propelled vessels require stringent control of flow and delivery pressure for the fuel gas. The CM4-200 and CM6-200 BOG compressors are perfectly suited to fulfil these exacting re-quirements.

Coupled with stepless flow control, ex-tremely low vi-bration levels and no pulsa-tions, this tech-nology is per-fectly suited to the long term requirements of an LNG car-rier. Long ser-vice intervals are standard. Simple opera-tion is possible, with all safety controls inte-grated into the vessel’s main control system.

4 stage BOG fuel gas compressor

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Cryostar CM type compressors

CM 300

CM6-200

CM4-200

CM2-200/CM2-300

Inlet Flow m3/h

Disc

harg

e Pr

essu

re b

ar a

6 stage BOG fuel gas compressor

6SUBTRAN Head-Flow ranges

Subtran submerged

pump

020406080

100120140160180200220240260280300320340360380

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Head

[m]

Flow [m3/h]

SUBTRAN75/230

SUBTRAN 60/200

SUBTRAN60/130

SUBTRAN 45/80

SUBTRAN 45/50SUBTRAN

15 & 22

Max. differential pressure (design)SUBTRAN 15: 19barSUBTRAN 60 and 75: 20barSUBTRAN 22 and 45: 30bar

Fuelling for the future…In recent years, vessel emission regulations have progressively tightened. This means that alterna-

tive methods are necessary to achieve compliance. Fuelling with LNG is one of the simplest and clean-est ways to achieve compliance.

From fuel tank to engineSmall in-tank pumps supply the liquid to the high pres-sure pumps located deck-side.Perfectly suited for this application, they are fitted with ceramic bearings for extended lifetime. Mounting can be either in an external sump, or internally in the tank.

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Dual fuel 2-stroke marine enginesThe high pressures required to fuel a 2-stroke diesel cycle engine on gas are well within the range of these exceptional pumps. Developed over a period of 40 years, they represent the very highest quality available.

Extremely low NPSH levels coupled with high reliability and efficiency, make Cryostar the natural choice. Simple maintenance and option of belt, gear or hydraulic drives complete the package. The pumps are delivered on completed skids fully tested in our world-leading facility in France.

Pumps for ethane fuelling complete our portfolio.

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MRP 40/40 OL3

MRP 40/55 OL3

HRP 48/90 GL3

HPP 65/70 OL3

HPP 65/90 GR3

HPP 75/90 GR3

HPP 75/110 OL3

m3/h

Flow (t/h) with density = 0.45 kg/l

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HPP 65 / 90 Gx3

Model Bore Stroke Transmission type

Number ofcylinders

40 years of experience in every pump…

LNG AS A FUEL

Triplexreciprocating pump

EcoRel-S

N2 Counter CurrentExchanger

N2 Compander

N2 inter & after coolers

LNGDrum

BOGDesuperheater

BOGCondenser

BOG Compressor

Main Engine [DFDE/XDF/ME-GI]GensetGCU

v

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Boil-off gas recovery for overall vessel efficiency

Since the boil-off generated in the cargo tanks has to be handled on board and often the engine fuel gas consumption is lower than the natural boil-off, it is necessary either to burn or reliquefy the surplus gas. This

surplus can then be traded rather than being lost.

EcoRel-SCryostar built their first marine reliquefaction plants in 2007 for the entire fleet of Q-Max vessels. These giants have by now accumulated a large number of running hours and tremendous experience has been gained, com-plementing the extensive studies performed for the initial unit.

EcoRel-S is best suited for vessels with low speed 2-stroke engines, or DFDE vessels with 4-stroke propulsion.

Cryostar’s patented desuperheater provides maximum system protection, allowing faster plant cooldown from ambient and faster load-up from idle than its competitors.

full reliquefactionis possible

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BOG RECOVERY

EcoRel-XWhen 2-stroke medium speed XDF type engines were introduced, it was possible to benefit from the higher BOG pressure in the fuel gas line.

Cryostar has patented a system using BOG as the working fluid in a semi-open cycle. This al-lows superior exploitation of residual cold in the process to reduce the power consumption, while still returning excellent results for condensate recovery. Utilising a BOG compander, together with a JT valve, the system remains simple, and has no major effect on the primary design of the fuel gas system.The complexities of nitrogen in-ventory are avoided and the system can be easily integrat-ed into vessel cargo systems.

EcoRel-X

N2 Counter CurrentExchanger

LNGDrum

BOG Compressor

Main Engine [DFDE/XDF/ME-GI]GensetGCU

BOG inter &after coolers

BOG Compander

as a working fluid, BOG is readily available

Cryostar compander

composition has smaller influence

than for nitrogen-based

systems

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EcoVAP C3V-C3V

LNG Pumps PCHE

PHE PHE

PropaneDrum

LNG in

NG out

Seawaterin/out

EcoVap Propane Intermediate LoopCryostar has developed a unique solution for LNG regasification of LNG aboard

FSRU vessels. The heat source is the energy available in the seawater. A pro-pane intermediate loop provides a separation between the LNG and the seawater.

A modular approach to the design allows scaling flexibility for different design flows and compo-sitions. The plant can be designed for maximum sendout flows, even in cold seawater conditions.

LNG pump skid

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LNG REGAS

LNG pump skid

EcoVAP-GW

LNG PumpsVaporizer/Trim heater

PHE

ExpansionDrum

LNG in

NG out

Seawaterin/out

EcoVap Glycol Water Intermediate LoopFor owners who would prefer to avoid propane, a glycol water intermediate loop is available.

While designed for a specific seawater temperature, the unit can still be operated in colderclimates by de-rating the output to minimise capital costs. The simplici-ty of the system configuration allows easy integration as original equipment or as a retro-fit option. The easy handling of the intermediate fluid makes this an environmentally safe solution.

12 Typical Liquefier

StarLiteTM

Cryostar’s StarliteTM nitrogen loop liquefiers for landbased applications typically comprise a com-pander with air cooling and coldbox. Plants are available adapted for regular, as well as cold climates.

Gas feed from pipeline or biogas can be handled. Plants are available in the range of 20~100 tons per day.The system draws on the experience of the 18 EcoRel-S plants currently in service.

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LANDBASED LNG

Landbased BOG compressors and blowersLNG Receiving Terminals are equipped with blowers to balance the gas volumes when LNG carriers unload. These machines are derivatives of the similar machines installed on the carriers themselves.

Built to different regulations, they benefit from the rugged reliability provided by the on-board machines.

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Surge Line

MIN+70°

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INLET GUIDE VANESSETTING

Multi-stage BOG compressor

Single stage return gas blower

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Reciprocating pump

Factory Acceptance

Test

Premium technology is our standardWhen designing our machines, the best possible materials and components are sourced. So-

phisticated tools are used to analyse and prepare the best possible solution for each design as-pect. Finally the machines are proven by testing in rigorous conditions in one of our 5 test facilities.

Gas sealsEspecially developed, together with a major sealing supplier, Cryostar uses the latest technology to minimise sealgas consumption while maintaining the safety of a gas tight seal.

Flow controlTo provide the smoothest stepless flow control, Variable Diffuser Vanes are used. These systems are applied to thousands of our machines.

High-speed bearingsTo allow long service intervals with the best possible performance, tilting pad bearings are utilised in all our high speed turbomachinery gearboxes.

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TECHNOLOGY & SERVICE

Caring for your equipment for 40 yearsSince the production of equipment began in 1967, Cryostar has always emphasised the need to support the end-user for the life of the equipment.

In the world of marine applications, the reliability and effi-cient operation of the equipment is mission critical. This is why Cryostar allocates each vessel to a single point of con-tact for most efficient servicing, parts supply and technical back-up.

Many end-users benefit from our maintenance agreements when it comes to dry-dock servicing. Dedicated spare parts kits ensure that no critical parts are missing during this time-pressured period off-hire. Routine and major servicing can be handled by our large team of technical experts any-where in the world.

Unplanned maintenance interventions are always a chal-lenge, with the vessel presenting a moving target. It requires skill, patience and immense co-operation to achieve seamless service under these circumstances. Cryostar’s service team is geographically distributed, affording quick reaction times wherever you may be, and the 24h service line means that you are guaranteed a response.

Most equipment only needs servicing at 5 and 10 year inter-vals, so it is key that the organisation is well planned and our team is always ready to work with you to define a course of action.

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