CN102388286A - Method for cooling a hydrocarbon stream and a floating vessel therefor - Google Patents
Method for cooling a hydrocarbon stream and a floating vessel therefor Download PDFInfo
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- CN102388286A CN102388286A CN2009801499974A CN200980149997A CN102388286A CN 102388286 A CN102388286 A CN 102388286A CN 2009801499974 A CN2009801499974 A CN 2009801499974A CN 200980149997 A CN200980149997 A CN 200980149997A CN 102388286 A CN102388286 A CN 102388286A
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Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B25/00—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby
- B63B25/02—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods
- B63B25/08—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J1/00—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
- F25J1/02—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures requiring the use of refrigeration, e.g. of helium or hydrogen ; Details and kind of the refrigeration system used; Integration with other units or processes; Controlling aspects of the process
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Ocean & Marine Engineering (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The present invention provides a floating vessel (1), and a method for cooling a hydrocarbon stream (10), such as natural gas, utilising such a vessel, the vessel comprising at least: one or more cooling stages (50, 100) in which a hydrocarbon stream (10, 20) passes against one or more refrigerant streams (40, 45) in one or more refrigerant circuits (150) to provide cooled hydrocarbon in one or more cooled hydrocarbon streams (20, 30) and one or more at least partly evapourated refrigerant streams (60, 70); each refrigerant circuit (150) comprising one or more compressors (200, 250), one or more coolers (300, 350), one or more expansion devices (400, 450), and one or more heat exchangers (500, 550), said heat exchangers providing the one or more cooled hydrocarbon streams (20, 30); and a plurality of storage tanks (600) for the cooled hydrocarbon, said storage tanks comprising at least two membrane storage tanks and having a combined storage capacity of greater than 170,000 m3, preferably greater than or equal to about 180,000 m3.
Description
Technical field
The invention provides a kind of ship and method thereof that is used to cool off hydrocarbon stream, this hydrocarbon stream for example is the fluidized flow of natural gas.In addition, a kind of method that transports from the hydrocarbon stream of the cooling of this ship also is provided.
Background technology
Liquefaction storage (FLSO) notion that offshore is floated is combined to gas deliquescence process, storage tank, Load System and other foundation structure in the single floating unit.Such unit has advantage, and this is because the off shore device that it provides a kind of replacement to liquefy the station on the bank.The FLSO ship can berth away from seashore, perhaps berths near the gas field or at the place, gas field, and this place's depth of water is enough to allow LNG product (liquefied natural gas product) to be unloaded on the carrying ship.This also represents a kind of movable assets (asset), and when finishing near its in the gas field, perhaps when economy, environment or political situation needed, these assets can relocate to new place productive life.
WO-2006/078104-A1 discloses the operating system of a kind of liquefied natural gas (LNG) steamer, and this operating system is used to carry out the supercooling liquefaction of bog.This LNG steamer is a kind of oil tanker that is used to transport LNG.This steamer comprises that a plurality of supplies have the storage tank of the LNG of place's liquefaction at the liquefaction station.This liquefaction station can be another ship (such as FLSO above-mentioned), or liquefaction is stood on the bank.The operating system of LNG steamer comprises the reliquefaction installation that the bog that is stored in the LNG in the storage tank is liquefied once more.Yet this reliquefaction installation is unaccommodated, and the underproductiving that has is with the incoming flow of liquefied natural gas.Moreover storage tank is less.
Summary of the invention
Aspect first, the invention provides a kind of floating boat that is used to cool off hydrocarbon stream, this hydrocarbon stream for example is a natural gas, this floating boat comprises at least:
One or more cooling sections; In these one or more cooling sections; Hydrocarbon stream flows against one or multiply cold-producing medium in one or more refrigerant loops stream; So that be provided at the hydrocarbon of the cooling in the hydrocarbon stream of one or multiply cooling, and the cold-producing mediums stream that the vaporization of one or more part at least is provided;
Each refrigerant loop comprises one or more compressors, one or more cooler, one or more expansion gear and one or more heat exchanger, and said heat exchanger provides this one or the hydrocarbon stream of multiply cooling; And
The storage tank of a plurality of hydrocarbon that are used to cool off, said storage tank comprise at least two barrier film storage tanks and have combination memory capacity that this makes up memory capacity greater than 170,000m
3, be preferably more than or equal about 180,000m
3
In second aspect, the present invention includes a kind of floating boat according to first aspect, this floating boat also comprises:
Be used to unload the assembly of the hydrocarbon of cooling, this assembly comprises:
The loading and unloading arm of balance; This loading and unloading arm is installed in the place, first place on ship (1) or the platform; And this loading and unloading arm comprises compasses formula pipe-line system; An end of this pipe-line system is fixed on the base portion and at place, the other end and is provided with connected system, and this connected system is used for pipe-line system (665,670) is connected to coupling arrangement, and this coupling arrangement is installed in place, second place;
Said compasses formula pipe-line system comprises the hydrocarbon stream feed-line of cooling, and the hydrocarbon stream feed-line of said cooling is communicated with one or more storage tank fluids at place, an end, and is attached to connected system at place, the other end;
First hawser, this first hawser are attached to through one in its end and are suitable for making this hawser to bear the device of constant-tension; And
Connect capstan winch, connection cable is wrapped on this connection capstan winch, be used for allowing to resist be applied to first hawser that connected system combines on constant-tension connected system is taken to the position that is connected with coupling arrangement.
Aspect the 3rd, the invention provides a kind of method of in floating boat, cooling off hydrocarbon stream, this hydrocarbon stream for example is a natural gas flow, said method may further comprise the steps at least:
(a) provide one or multiply hydrocarbon stream to flow with one or multiply cold-producing medium; Wherein this one or multiply cold-producing medium stream in one or more refrigerant loops, each refrigerant loop comprises one or more compressors, one or more cooler, one or more expansion gear and one or more heat exchanger;
(b) at least a portion in compression this one or the multiply cold-producing medium stream in one or more compressors flows so that one or multiply refrigerant compressed to be provided;
(c) cooling this one or multiply refrigerant compressed stream in one or more coolers is with the cold-producing medium stream that provides one or multiply to cool off;
(d) at least a portion in the cold-producing medium stream of expansion this one or multiply cooling in one or more expansion gears is with the cold-producing medium stream that provides one or multiply to expand; And
(e) in one or more heat exchangers, make this one or the cold-producing medium stream that expands of multiply carry out heat exchange with one or multiply hydrocarbon stream, so that one or multiply the cold-producing medium stream of part vaporization and the hydrocarbon stream of one or multiply cooling at least to be provided; And
(f) make this one or the hydrocarbon stream of multiply cooling flow to a plurality of storage tanks downstream, said storage tank comprises at least two barrier film storage tanks and has combination memory capacity, said combination memory capacity is greater than 170,000m
3Or more than, be preferably more than or equal about 180,000m
3
Aspect the 4th, the invention provides a kind of method that will be transported to the carrying ship from hydrocarbon according to the cooling of the floating boat of above-mentioned second aspect, said method may further comprise the steps at least:
(a) with the floating boat arrangement side by side carrying ship that berths;
(b) connected system is elevated to the coupling arrangement top that is installed on the carrying ship;
(c) launch connection cable from connecting capstan winch;
(d) connection cable is fixed to the directing part segment of coupling arrangement;
(e) the loading and unloading arm is manipulated to the centre position between coupling arrangement and base portion;
(f) make first hawser be in constant-tension;
(g) start the connection capstan winch, reducing the length of the connection cable that from connect capstan winch, launches, thereby the connected system of assembly is engaged with coupling arrangement on the carrying ship, keep first hawser to be in constant-tension simultaneously;
(h) hydrocarbon stream that the hydrocarbon stream feed-line of cooling is connected to cooling receives pipeline, and the hydrocarbon stream of said cooling receives pipeline on the coupling arrangement of taken-over vessel; And
(i) make the hydrocarbon stream reception pipeline of the hydrocarbon stream of at least a portion cooling in one or more storage tanks to the cooling of carrying ship.
The cooling means of this hydrocarbon stream is accomplished on floating boat.This floating boat can be any movable ship or roadster, and this ship has hull usually at least, and is the form such as the steamer of " oil tanker " usually.
Such floating boat can have virtually any size, but normally elongated.When the size of floating boat was unrestricted at sea, the construction and the maintenance of equipment that are used for floating boat possibly limit these sizes.Therefore, in one embodiment of the invention, the length of floating boat is less than 600m, such as 250-350m, and preferably about 300m, and ship side is less than 100m, such as 50m, so that can be contained in existing shipbuilding and the maintenance of equipment.
Ship disclosed herein can be newly-built ship or transformed by existing ship (such as LNG carrying ship).In these two embodiment, preferably between HIGH PRESSURE TREATMENT equipment and the common zone of occupying by the crewman, has largest interval.Newly-built shipbuilding is useful; Because it can be provided with deck unit; This deck unit has the LNG containment; Be easy to treatment facility is combined in this LNG containment, wherein hull and contained structure begin design from required characteristic, and required characteristic is such as being blow strength, low-temperature protection and fire isolation.
This hydrocarbon stream can be any suitable air-flow of (preferably will be liquefied) of will being cooled, but the natural gas flow that normally from natural gas reservoirs or petroleum reservoir, obtains.As a kind of alternative scheme, natural gas flow also can obtain from other source, also comprises synthetic source, such as Fischer-Tropsch reaction.
Usually, gas source mainly comprises methane.Preferably, the hydrocarbon incoming flow comprises the methane of 50mol% (molar percentage) at least, more preferably the methane of 80mol% at least.
According to the source, can comprise the hydrocarbon of the variable quantity heavier such as the hydrocarbon source of natural gas than methane, such as especially ethane, propane and butane, and possibly comprise more a spot of pentane and aromatic hydrocarbons.This composition changes according to the type and the place of gas.
Routinely,, cause the difference of the each several part at hydrocarbon stream obstruction methane liquefaction station to be solidified or condensing temperature, before any remarkable cooling of hydrocarbon stream, as far as possible expeditiously the hydrocarbon heavier than methane removed such as having possibility owing to some reasons.
Hydrocarbon source such as natural gas also can comprise non-hydrocarbons, such as H
2O, N
2, CO
2, Hg, H
2S and other sulfide or the like.In case of necessity, can before cooling and liquefaction, carry out preliminary treatment such as the hydrocarbon source of natural gas.This preliminary treatment can comprise and reduces and/or remove not desired components, such as CO
2And H
2S.Because these steps are known to those skilled in the art, do not further describe their mechanism at this.
Said floating boat does not comprise the pretreatment unit that is selected from the group that comprises that sour gas removal, dehydration and natural gas liquids extract.In case of necessity, arbitrary preliminary treatment is being different from of living in the carrying out in field of ship 1, such as place, for example hydrocarbon pre-processing device on the bank.This pretreatment unit is preferably in disembark 2km distance at least, more preferably in disembark 10km distance at least.
Therefore, the component after term " hydrocarbon stream " expression of this use is handled, this processing comprises that the acid gas removal, dehydration and the natural gas liquids that on ship 1, do not carry out extract.
Thereby; In order to reduce and/or to remove one or more compounds or material; This hydrocarbon stream is as required by the component of partly, fully or fully handling, and these one or more compounds or material include but not limited to: sulphur, sulfide, carbon dioxide, water, mercury and one or more C
2+ hydrocarbon.
Hydrocarbon stream is cooled in one or more cooling sections; Wherein this hydrocarbon stream flows against one or multiply cold-producing medium in one or more refrigerant loops stream; With the hydrocarbon of the cooling in the hydrocarbon stream that is provided at the cooling of one or multiply, and one or the multiply cold-producing medium stream of part vaporization at least is provided.
In a preferred embodiment, the mix refrigerant cooling in the refrigerant loop that hydrocarbon stream can be mixed.More preferably, the two or more part coolings in the cold-producing medium that this hydrocarbon stream can be mixed.The refrigerant loop of this mixing can comprise one or more coolant compressors, so that the cold-producing medium of compressed mixed.This coolant compressor can be by one or more driver drives.These drivers can be electric drive or air turbine.Electric drive can provide power from least one (preferred six) double-fuel diesel generator (DFDE), for example 6 * 16MW DFDE generator.Air turbine can be at least one (preferred two) aviation type air turbine, this air turbine diameter Driven Compressor.In an alternative embodiment, air turbine can be used for the driving electric generator, this power generator be applicable to electric drive provides power, thereby drive coolant compressor.
This hydrocarbon stream can be cooled in one or more first heat exchangers, and so that the hydrocarbon stream of first cooling (preferably by partial liquefaction) to be provided, this hydrocarbon stream preferably is in the temperature below 0 degree centigrade.
Preferably, any first such heat exchanger can comprise first cooling section and one or more further second heat exchanger of cooling that is used for, and preferably, can comprise one or more second cooling sections to arbitrary partial liquefaction of hydrocarbon stream.Further cooling section can be set, but not discuss in this embodiment.
Thus, can comprise two or more cooling sections in this disclosed method and ship, each section has one or more steps, part etc.For example, each cooling section can comprise one to five heat exchanger.Part in the hydrocarbon stream and/or the cold-producing medium that mixes can not flow through all heat exchangers of cooling section, and/or still flow through the heat exchanger of cooling section.
In one embodiment, the method for hydrocarbon cooling (preferred hydrocarbons liquefaction) comprises two or three cooling sections.First cooling section is preferably used for the temperature of hydrocarbon stream is reduced to below 0 degree centigrade, usually-20 ℃ (degree centigrade) in-70 ℃ the scope, so that the hydrocarbon stream of first cooling to be provided.This first cooling section is also referred to as " pre-cooled " section sometimes.
Second cooling section can preferably separate with first cooling section.That is to say that this second cooling section comprises one or more independent heat exchangers.This second cooling section is also referred to as " main cooling " section sometimes.
Second cooling section is preferably used for reducing the temperature of the hydrocarbon stream of first cooling; At least a portion in the hydrocarbon stream that the hydrocarbon stream of this first cooling is normally cooled off by first cooling section 50; The hydrocarbon stream of second cooling is provided, and the hydrocarbon stream of this second cooling is in the temperature below-100 ℃.Preferably, the hydrocarbon stream of second cooling is the hydrocarbon stream of liquefaction, flows such as LNG.If the hydrocarbon stream of second cooling is a LNG stream, preferably, it " meets standard ", that is to say, LNG has desired components for specific export market.
Be known in the art as the heat exchanger of one or more first heat exchangers or one or more second heat exchangers.In second heat exchanger at least one Scroll preferably known in the art (spool-wound) low temperature heat exchanger.Alternatively, heat exchanger can comprise the one or more cooling end sections that are positioned at its housing, and each cooling end section can be counted as a cooling section or be counted as independent " heat exchanger " for other cooling place.
In yet another embodiment of the present invention; One or more parts in the cold-producing medium stream that mixes flow through one or more heat exchangers; Preferably, flow through two or more in the first above-mentioned heat exchanger and second heat exchanger, so that the mixed refrigerant stream of one or multiply cooling to be provided.
The cold-producing medium of the mixing of the refrigerant loop that mixes can be formed by the mixture that is selected from two or more components of following group, and this group comprises nitrogen, methane, ethane, ethene, propane, propylene, butane, pentane etc.Can be included in the independent or overlapping refrigerant loop or one or more other cold-producing mediums of use in other cooling circuit in this disclosed method.
In this disclosed embodiment, the method for cooling (preferred liquefaction) hydrocarbon stream comprises a refrigerant loop, and this refrigerant loop comprises a kind of cold-producing medium of mixing.
Comprise two kinds of different components of 5mol% at least with reference to the cold-producing medium of the mixing of this paper or the cold-producing medium stream of mixing.For the cold-producing medium that mixes, common component can be:
Total component comprises 100mol%.
In another embodiment, this method is used to make natural gas liquefaction so that liquefied natural gas to be provided.
Hydrocarbon stream in the cooling (preferred liquefaction) that this provided is stored in a plurality of storage tanks, and these storage tanks are positioned on the floating boat.A plurality of storage tanks comprise at least two barrier film storage tanks.
A plurality of storage tanks have combination memory capacity, and this combination memory capacity is greater than about 170,000m
3, be preferably more than or equal 180,000m
3180,000m
3With 200,000m
3Combination memory capacity be preferred especially.
180,000m
3With 200,000m
3Combination memory capacity be useful, this is that weather condition postpones the hydrocarbon product of cooling is unloaded because the storage flexibility allows.Typical LNG carrying ship can transport 150,000m
3The LNG goods.If make 10,000m every day at this disclosed ship
3The hydrocarbon of cooling of needs storages, then 150,000m
3The unloading of cooling hydrocarbon, for having 180,000m
3Combination memory capacity ship since bad weather can postpone up to three days, for having 200,000m
3The ship of combination memory capacity then can postpone up to five days.
In a preferred embodiment, this gear has 4-6 storage tank, more preferably has 5 storage tanks.
Further preferably, these storage tanks are arranged from the fore of ship in order.In another embodiment, preferably, one or more cooling sections are present in from the cabin, top side of second storage tank top that the fore of ship is arranged in order.Yet one or more cooling sections can be arranged in the cabin, top side of one of other storage tank top.
Comprise the low temperature bushing pipe at this employed barrier film storage tank, this bushing pipe is anchored to the structure of ship, more specifically anchors to the inside hull of catamaran hull ship.Current barrier film standard needs double barrier, and this double barrier can comprise liquid goods, and, if take place significantly to leak, prevent cryogen arrived ship body structure through first barrier film.Because hull is tending towards being processed by ordinary steel, they contact and will become fragile with cryogenic liquid such as LNG.Therefore, all ships that have a barrier film containment all have two-layer barrier film: first barrier film that contacts with cryogen; With guarantee that LNG holds second barrier film that separates with inner hull code insurance.
This containment also has heat-proof quality, with maintenance receptible temperature for inner fibre reinforced plastic hull, and the heat exchange to cryogenic liquid is minimized, and is vaporizated into bog thereby reduce it.In addition, heat insulationly should stand the load that thermal cycle and opposing are produced by the static state and the dynamic pressure of cryogenic liquid, and the static state and the dynamic pressure of cryogenic liquid is delivered to the interned ship body structure.
At this employed barrier film storage tank the structure of variation can be set, wherein No.96 barrier film storage system and Mark III storage system are preferred.The No.96 membrane system provides the low temperature bushing pipe, this low temperature bushing pipe by two identical metal diaphragms and two independently the insulator layer process.First barrier film and second barrier film are processed by invar (Invar) (for example thickness is 36% nickel alloy steel of 0.7mm).First barrier film contain receive the cooling hydrocarbon, such as LNG.Second barrier film provides another protective layer under leakage situation.For example, the wide invar plate of 500mm can stretch along the storage tank skin continuously, supports equably through seam weldering combination and through the first and second insulator layers.
The first and second insulator layers comprise the bearing system of processing with the prefabricated clamping plate case of the perlite filling of expanding.These casees can have the size of 1m * 1.2m.The thickness of the first insulator layer can change from 170mm to 250mm according to the requirement of ship.The first insulator layer can be fixed through first connector, and is fixed to second adapter assembly.The second insulator layer can be capped, and by the supporting equably through the carrying resin rope of about 300mm thickness of inner hull.Therefore, total insulating thickness can be in the scope of 530mm.This carrying resin rope anchors to inner hull by means of second connector.
Mark III barrier film storage system comprises first metal diaphragm at the top that places prefabricated heat insulation panel.Prefabricated heat insulation panel comprises the second complete barrier film.First barrier film is processed by the corrugated stainless steel, for example has the thick 304L of 1.2mm.This first barrier film holds the cryogenic liquid goods, and directly supports and be fixed to this heat insulation panel by heat insulation panel.Undulatory first barrier film can 3m * 1m the sheet material mode provide, and combine through TIG (Tungsten-arc Inert-Gas welding)/plasma welding.It is inner that second barrier film is arranged on heat insulation panel, and be made up of composite laminates, and three layer laminate for example can have the thickness of 0.6mm.Laminated material comprises and is arranged between glass fabric layer and the resin bed thin aluminum sheet.Second barrier film is arranged in the inside of the prefabricated heat insulation panel between the two insulator layers.
This insulator is included in the prefabricated panel in the polyurethane foam of enhancing, and the polyurethane foam of this enhancing comprises the first and second insulator layers and second barrier film, so that a kind of bearing structure to be provided.Be similar to first barrier film, insulator can be arranged in the panel of 3m * 1m.The thickness of insulator can be regulated from 250mm to 350mm as required, and wherein the thickness of 270mm is common.Panel can be connected to the inside hull of ship by means of resin rope, solid insulator of these resin line anchors and distributed load equably.
The a plurality of storage tanks that are present in the ship also can comprise one or more prismatic IMO type B (SPB) storage tanks from supporting.The SPB storage tank is made up of aluminium alloy, stainless stiffened panel structure, such as being covered by the polyurethane foam insulator and by strengthening SUS 304 or 9% nickel steel that pillar that clamping plate process and wedge support.The SPB storage tank is through the close bulkhead of the liquid of center line and only swing bulkhead and by being segmented, so that a plurality of (such as 4) to be provided internal capacity.It is favourable that stainless cylinder of steel is had an X-rayed from structure, because its easy realization, and particularly realize through welding easily.In addition, stainless steel has good chemical stability.
In a preferred embodiment, at least one (more preferably one) SPB storage tank is present in the ship.The SPB storage tank can be used as the impouring jar (rundown tank) of the hydrocarbon of cooling, that is to say, it is as hydrocarbon initial storage tank that flows into after exploitation of the cooling of being produced by cooling means aboard ship.The SPB storage tank is favourable as the impouring jar, and this is because they resist the motion (usually said " rocking ") of the hydrocarbon that is contained in cooling wherein inherently, because their memory space is segmented by inner bulkhead.
Term " rocks " and refers to the motion that is stored in the liquid in the jar, this motion be in response to wind and/or wave motion or since the ship to change and caused by the ship motion of ship (such as lift-over, tilt and wave).Therefore this jar can be equipped with the liquid of arbitrary height.When the SPB jar reaches its capacity; The content of SPB jar can flow in the barrier film storage tank; These barrier film storage tanks can be loaded into a height, highly locate at this, rock unquestionable; For example low loading height the jar height 5% to 10% between and below, and high loading height the jar height 80% and more than.
In another embodiment, this ship can be provided with the barrier film jar than low capacity (comparing with other storage tank) as one or more (preferred two) of impouring jar, preferably two.Be meant in this impouring: the liquefied natural gas after liquefaction at first supplies to the impouring jar, and when the impouring jar was loaded into predetermined altitude, the content in the impouring jar was transferred in one of other storage tank.The reducing size and will work of these barrier film impouring jars, to reduce owing to rock and cause jar risk of damage.Especially when gear has along the roughly elongated shape of longitudinal axis, preferably be provided at the size that reduces perpendicular to the barrier film impouring jar on the direction of longitudinal axis.
Combination memory capacity in all reducing the jar of size preferably equals the N-M% of the memory capacity of one of other storage tank at least; Wherein: according to the permissible risk of rocking; N is minimum permissible high filling percentage, and M is maximum permissible low filling percentage.This makes the enough big combination memory capacity in reducing the impouring jar of size can keep enough liquiefied products, with will be one of big (" full-scale (full size) ") jar be loaded into minimum tolerable high altitude from permissible low clearance.Therefore, be reduced to predetermined permissible degree owing to rock the full-scale jar of risk of damaging that causes.Preferably, the combination memory capacity that all reduces in the jar of size preferably equals N% at least, so that be enough to the full-scale storage tank of sky is loaded into it more than minimum permissible high altitude, and for example 80%.
What those skilled in the art can know is, before these embodiment of describing in the paragraph also can advantageously be applied to and have 170,000m
3Or on the ship of combination memory capacity still less.
In addition, what the person skilled in the art will easily understand is that after any liquefaction, if expectation, the liquefaction hydrocarbon stream can further be handled.For instance, the LNG that is obtained can or be depressurized by means of the cryogenic turbo decompressor by means of joule-Tom's valve.
The liquefaction hydrocarbon stream can flow through the terminal gas/liquid separation; Such as terminal flash tank (end-flash vessel), so that being provided, flash distillation top, a kind of terminal distillates gas stream and bottom liquid stream, as stated; This bottom liquid stream can be stored in a plurality of storage tanks and as liquiefied product, such as LNG.
The gas of terminal flash distillation can be compressed in the compressor of terminal, and the gas that acts as a fuel will supply to the unit of consume fuel gas on the ship.For example, fuel gas can be used for for double-fuel diesel (DFDE) generator provides power, with generation be used for ship the electricity and be that air turbine (such as aviation type turbine) provides electric power.
The rated capacity (or nameplate) that the liquefaction hydrocarbon stream can be provided in this disclosed ship and cooling means more preferably more than or equal to 1.3MPTA, even more preferably is about 2.0MTPA for greater than 1.0 hundred ten thousand tons of/year (MTPA) (metric systems).The day output that term " rated capacity " is defined as this ship multiply by the annual work fate of stipulating of ship.For example, the annual average work of some LNG plant regulations is 345 days.Preferably, in the rated capacity of this disclosed hydrocarbon cooling means in greater than 1MTPA and scope smaller or equal to 2MTPA.
The hydrocarbon unloading assembly capable of using of cooling is unloaded on the carrying ship from floating boat, and this unloading assembly is such as being U.S. Pat 7,147, and 022 disclosed articulated jib is incorporated in this paper by reference at this.This articulated jib is the part of connected system, and is equipped with permission at two hydraulic couplings that transmit between the roadster side by side.This connected system can be operated between two places of relative to each other moving, thereby allows between two ships, to form good connection.
Preferably, ship comprises at least two loading arms, more preferably comprises four loading arms.For example, this ship can comprise two loading arms that are exclusively used in the hydrocarbon (such as LNG) of transmission cooling, a transmission that is exclusively used in hydrocarbon steam (such as LNG steam), and one can be used for steam or liquid.
The assembly that is used to unload the hydrocarbon of cooling comprises loading and unloading arm, compasses formula pipe-line system, first hawser of balance and is connected capstan winch.
The loading and unloading arm of balance is mounted place, first place aboard ship, such as regional at Texas deck.This arm comprises compasses formula pipe-line system, and an end of this compasses formula pipe-line system is fixed on the base portion, and is provided with the connected system that is used for pipe-line system is connected to coupling arrangement at place, the other end.
Coupling arrangement is installed in second place and sentences just the hydrocarbon that receives cooling, on the deck such as the carrying ship of the hydrocarbon that is installed in cooling.
Compasses formula pipe-line system comprises the hydrocarbon stream feed-line of cooling.The hydrocarbon stream feed-line of this cooling is communicated with one or more storage tank phase fluids at place, an end, and is attached to connected system at place, the other end.
First hawser is attached to through one of its end and is suitable for making this hawser to bear the device of constant-tension, such as the constant tension device.
A kind of connection capstan winch that comprises connection cable also is provided.Connection cable can be in winding state or deployed condition, and allows in the position that connected system takes to coupling arrangement is connected.This operates in the constant-tension effect that is applied on first hawser that combines with connected system and takes place down.
Fig. 2 provides the description of more details of the assembly of the hydrocarbon that is used for being used in operation unloading cooling.
Description of drawings
To and embodiments of the invention only be described by way of example with reference to appended nonrestrictive accompanying drawing now, in the accompanying drawing:
Fig. 1 is the illustrated scenario of hydrocarbon cooling means, shows one embodiment of the present of invention;
Fig. 2 is the illustrated scenario that is used for the hydrocarbon of cooling is transported to from floating boat the method for carrying ship according to another embodiment of the invention; And
Fig. 3 shows the schematic plan of floating boat, demonstrates a plurality of storage tanks according to an embodiment.
For purposes of illustration, a Reference numeral will be assigned to pipeline and be carried on the stream in this pipeline.Identical Reference numeral is represented same parts.
The specific embodiment
With reference to accompanying drawing, Fig. 1 shows a kind of overall plan of the method that is used for hydrocarbon cooling (preferred liquefaction) in floating boat 1.As above discussed, the hydrocarbon source can comprise natural gas, and this hydrocarbon source usually can be by preliminary treatment, so that from wherein reducing and/or removing than the major part the heavy hydrocarbon.This preliminary treatment be with floating boat 1 separate the field of living in carrying out.
The separation of this common form is called as " natural gas liquid " extraction (NGL), wherein C
2+ hydrocarbon part is fractionated out, so that the methane-rich stream that is cooled subsequently is provided, and is C
2+ component and one or multiply single-component flow or multicomponent stream are provided flows with the LPG product such as NGL.
After any preliminary treatment and prefractionation, some processes of long-range execution, step or stage are to offer ship with initial hydrocarbon stream 10.
To discuss the operation of ship 1 now in more detail.Hydrocarbon stream 10 flows through one or more first heat exchangers 500, and these heat exchangers also can be defined as first cooling section 50.Preferably, first cooling section is cooled to hydrocarbon charging 10 streams below 0 ℃, such as between-20 ℃ to-70 ℃; Preferably or between-20 ℃ to-45 ℃; Between-40 ℃ to-70 ℃, so that hydrocarbon stream 20 to be provided, this hydrocarbon stream 20 can be the hydrocarbon stream of first cooling.
Cold-producing medium through mixing provides cooling in one or more first heat exchangers 500, so that the cold-producing medium stream 60 of part evaporation at least to be provided, as the first cold-producing medium stream of part evaporation at least.
Can be flow to one or more second heat exchangers 550 by the hydrocarbon stream 20 of first cooling of partial liquefaction, preferably flow to main low temperature heat exchanger.After passing through second heat exchanger 550, the hydrocarbon stream 30 of cooling (preferred liquefaction) can be provided as the hydrocarbon stream of second cooling.
Through second cold-producing medium stream 40 cooling is provided in one or more second heat exchangers 550, this second cold-producing medium flows at least a portion in the mix refrigerant that comprises mix refrigerant loop 150.Second cold-producing medium stream 40 is evaporated through one or more second heat exchangers 550, thereby with manner known in the art the second cold-producing medium stream 70 of part evaporation at least is provided.
The hydrocarbon stream 30 of second cooling flows through expansion gear (such as valve 800) then, and with the hydrocarbon stream 810 of partial liquefaction that the expansion that flows to terminal gas/liquid separation 850 is provided, this terminal gas/liquid separation is the terminal flash tank.Terminal gas/liquid separation 850 provides flash distillation top, terminal to distillate gas stream 860 and bottom liquid stream 870.This bottom liquid stream 870 can flow among a plurality of barrier film storage tank 600a-600e.
In a preferred embodiment, bottom liquid stream 870 flows to the SPB storage tank that is used to store liquid hydrocarbon.When SPB storage tank during near its capacity, liquid hydrocarbon can be transported to one or more barrier film storage tanks.The barrier film storage tank can be loaded into less than 10% capacity or greater than 80% capacity, rocks avoiding.
In an interchangeable preferred embodiment, bottom liquid stream 870 can flow to one or more than among the macromesenterium storage tank 600b-600e much than in one or more among micromesentery jar 630a, the 630b.To further specify this structure with reference to Fig. 3 below.When the bottom liquid stream 870 of q.s be accumulated in a lot of less storage impouring jars with one in the big barrier film storage tank be loaded into its capacity at least 80% the time, the Liquefied Hydrocarbon that is accumulated can be in this impouring jar be transported to the big barrier film storage tank.
The hydrocarbon stream feed-line 610 of cooling is connected to each among the storage tank 600a-e at the first end place, and is connected to the assembly 650 of the hydrocarbon that is used to unload cooling at the second end place.This assembly 650 will be described in more detail in Fig. 2.
Terminal flash gas stream 860 selectively with evaporative air 620 combinations from storage tank 600a-e; So that the compressor incoming flow 880 of combination was provided before sending it to one or more terminals compressor 900, this terminal compressor is driven by terminal driver D3.Terminal compressor 900 provides the gas stream 910 of compression.The part of the gas stream 910 of compression can be moved out of with as recirculation hydrocarbon stream 920, and this recirculation hydrocarbon stream is recycled cooler 950 and cools off, so that the recirculation flow 960 that liquefies and turn back to storage tank 600a-600e to be provided.
Another part in the gas stream 910 of compression is extensible with the gas stream 930 that acts as a fuel, and flows to the fuel gas stream consumer, such as generator on the ship that is used to produce electric energy.If one or more among the first driver D1, the second driver D2 and the terminal driver D3 are electric drives, then they can be through providing power by the electricity that fuel gas produced.Alternately, if one or more among the first driver D1, the second driver D2 and the terminal driver D3 are air turbines, then they can provide power by fuel gas.
Turn to mix refrigerant loop 150, from second heat exchanger 550, discharge second the cold-producing medium stream 70 of part evaporation is by 250 compressions of second compressor at least, so that second refrigerant compressed stream 210 to be provided, wherein this second compressor is driven by the second driver D2.
Second refrigerant compressed stream 210 can be by 300 coolings of second cooler; So that the compressive flow 310 of second cooling to be provided; Then; The compressive flow 310 of second cooling and first cold-producing medium stream 600 combinations of part evaporation at least from first heat exchanger 500 are with the compressor stream 240 of the combination that is provided for first compressor 250.First compressor 250 can be driven by the first electric drive D1, so that first refrigerant compressed stream 260 to be provided.First refrigerant compressed stream 260 can flow through first cooler 350, so that the cold-producing medium stream 360 of first cooling to be provided.
The cold-producing medium stream 360 of first cooling can flow through the first cold-producing medium gas/liquid separation 375, with the gaseous flow 385 and bottom liquid stream 380 that provides the top to distillate.The gaseous flow 375 that the top distillates flows through first heat exchanger 500 and is cooled, so that second cold-producing medium stream 410 to be provided.Bottom liquid stream 380 can be cooled through its passage through first heat exchanger, 500 (not shown); Cold-producing medium stream 380 with cooling that first is provided; The cold-producing medium stream of the cooling of this first can be inflated through expansion gear (such as valve 450); Producing the first 45 of mix refrigerant, and this first 45 flows in first heat exchanger 500, in this first heat exchanger; Its is by evaporation at least in part, thereby with mode well known in the prior art the first cold-producing medium stream 60 of part evaporation at least is provided.
In another embodiment, illustrational like institute among Fig. 2, provide a kind of hydrocarbon to be transported to the sketch map of the method for carrying ship 2 from floating boat 1 with cooling, this carrying ship for example is a liquefied natural gas carrying ship.
The assembly that is used to unload the hydrocarbon of cooling can be arranged on floating boat 1.This assembly comprises the loading and unloading arm 655 of balance, compasses formula pipe-line system 665,670, the first hawsers 685 be connected capstan winch 696.
The loading and unloading arm 655 of this balance is installed in 660 places, first place on the floating boat 1, such as in the Texas deck zone.This arm 655 comprises compasses formula pipe-line system 665,670, and an end of this compasses formula pipe-line system is fixed on the base portion 675, and is provided with the connected system 680 that is used for pipe-line system is connected to coupling arrangement 750 at place, the other end.
Coupling arrangement 750 is installed in 760 places, second place, so that receive the hydrocarbon of cooling, on the deck such as the hydrocarbon carrying ship 2 that is installed in cooling.
Compasses formula pipe-line system 665,670 comprises the hydrocarbon stream feed-line 610 of cooling.The hydrocarbon stream feed-line 610 of this cooling at one end one or more fluids in the storage tank on portion place and the floating boat 1 is communicated with, and locates to be attached to connected system 680 in the other end.
The connection capstan winch 696 that comprises connection cable 695 also is provided.Connection cable 695 can be in and twine or deployed condition, and allows to take connected system 680 to be connected with coupling arrangement 750 position.This operating under the constant-tension carried out, and this constant-tension is applied on first hawser that combines with connected system.
Carrying ship 2 (such as LNG carrying ship) is to berth with floating boat 1 arrangement side by side, so that carry the hydrocarbon of cooling.
Then, connected system 680 is lifted to be installed in the top of the coupling arrangement 750 on the carrying ship 2.This can utilize the Long-distance Control plate to realize through the operator.The pressure that reduces can be applied to and be used to the device 690 (such as the constant tension device) that makes first hawser bear constant-tension, so that it is any loosening to avoid first hawser 685 in uninstall process, to have at this some place.
Then, connection cable 695 launches from connecting capstan winch 696, and is pulled to the end of the directing part segment 770 of the coupling arrangement 750 at 760 places, second place on carrying ship 2.In case of necessity, this can realize through using cable messenger.
Then, loading and unloading arm 655 being maneuvered to the centre position between the base portion 675 of coupling arrangement 750 and arm.The store status of this expression arm 655 and the centre position between the connection status.
Then, first hawser 685 is placed under the constant-tension via the device that is used to make first hawser bear constant-tension 690 (such as the constant tension device).
Then, connecting capstan winch 696 can be unlocked, and reducing the length of the connection cable 695 that launches from this capstan winch, thereby the connected system 680 of assembly 650 is engaged with coupling arrangement 750 on the carrying ship 2.Simultaneously, keep first hawser 685 to be under the constant-tension.
Then, the hydrocarbon stream conveying circuit 610 of cooling can be connected to the hydrocarbon stream reception pipeline 780 of the cooling on the coupling arrangement 750 on the taken-over vessel 2.This connection can realize that this coupling can be connected to the flange 690 on the house steward who is connected with the hydrocarbon stream reception pipeline 780 that cools off through the hydraulic coupling on the arm 655 697.The hydraulic limitations valve can be used for stopping automatically connecting capstan winch 696.
The tension force that is applied on first hawser 685 can be reduced to needed minimum of a value, so that before the beginning unloading operation, keep the hawser tension.
Then, the hydrocarbon stream that at least a portion in the hydrocarbon of the cooling in one or more storage tanks can flow to the cooling of carrying ship 2 receives pipeline 780, and it can be transported to storage tank 795a-795e thus.
Fig. 3 is a kind of schematic plan of replacing the floating boat 1 that structure cools off hydrocarbon stream based on whole barrier film storage tanks a kind of that is used to utilize.This ship 1 has roughly elongated shape, and this elongated direction limits longitudinal axis A.Be included in this barrier film jar 600b that is described as being arranged side by side along longitudinal axis A to the full-scale storage tank of 600e interior, also be provided with barrier film jar 630a, 630b that two or more reduce size.This barrier film jar that reduces size will be used to realize the purpose of above-mentioned dimension reduction.This jar 630a, 630b that reduces size can be arranged on the both sides of longitudinal axis A of ship according to the mode of being arranged side by side.
This layout of vertically separating provide have reduce width than canister, when the impouring jar, it is reducing because to rock the damage that is caused especially effective aspect dangerous.
Two or more barrier film jar 630a, 630b that reduce size can occupy altogether approximately with other storage tank 600b to the identical space of one of 600e, but this necessary condition always not.If expectation, they can occupy many or little space.For example, they can make greatlyyer in a longitudinal direction, so that bigger memory capacity to be provided under the situation of the width that does not increase these jars.Alternately, these impouring jars 630a, 630b can arrange perpendicular to axis A, so that rocking on axis A direction minimizes.
The mode that can be arranged side by side or this than canister more than two is set with other arrangement.For example, minimize in order to make rocking on whole horizontal directions, four or more a plurality of impouring jar can be arranged on the zone identical with the storage tank 600b of a complete size.These impouring jars see it can is foursquare basically from vertical view.
In a kind of embodiment of practicality, full-scale storage tank 600b-600e is basically across the width of ship 1.This beam for example is about 35-45 rice.These impouring jars 630a, 630b are for example across the half the of beam or still less.The length of impouring jar can be the half the of full-scale storage tank length or still less.The height of these impouring jars can be substantially equal to the height of full-scale storage tank.
The barrier film storage tank can be basically across the whole width or the ship beam of ship 1.The upside of these jars can be put down, thereby in these tank tops space, flush deck easily is provided.In addition, the barrier film storage tank allows fully to use the interior free space of hull of ship.This and spherical tank have formed contrast.On the other hand, the barrier film jar is compared with the SPB jar and is had lower cost.SPB jar inside is used to tackle the pressure structure of rocking and causes the SPB jar relatively costly.
Ship of the present invention can be provided with propeller, so that during the impouring jar is transported to one of other storage tank, make ship stable Liquefied Hydrocarbon.The stable Liquefied Hydrocarbon that prevented of ship is rocked in storage tank, thereby prevent to damage storage tank.Rely on angle of rake power, propeller can make during disadvantageous weather conditions and stormy sea situation transportation of hydrocarbon reposefully.Propeller can comprise one or more bow navigators or tunnel thruster.Tunnel thruster is arranged near the stern 2 of ship 1.Propeller for example comprises and is arranged in ducted impeller that this pipeline extends through this stern.Each propeller can produce perpendicular to the thrust on arbitrary direction of axis A.
Therefore, the present invention can use some and one, two or more following comparatively cheap barrier film storage tanks of combining of less barrier film impouring jars.
What the person skilled in the art will easily understand is, under the situation of the scope of the invention that does not break away from appending claims and limited, can much revise.
Claims (22)
1. floating boat (1) that is used to cool off hydrocarbon stream (10), said hydrocarbon stream for example is a natural gas, said floating boat comprises at least:
One or more cooling sections (50,100); In said one or more cooling sections; Hydrocarbon stream (10,20) flows against one or multiply cold-producing medium in one or more refrigerant loops (150) stream (40,45); So that be provided at the hydrocarbon of the cooling in the hydrocarbon stream (20,30) of one or multiply cooling, and one or the multiply cold-producing medium stream (60,70) of part evaporation at least be provided;
Each refrigerant loop (150) comprises one or more compressors (200,250), one or more cooler (300,350), one or more expansion gear (400,450) and one or more heat exchanger (500,550), and said heat exchanger provides the hydrocarbon stream (20,30) of said one or multiply cooling; And
The storage tank of a plurality of hydrocarbon that are used to cool off (600), said a plurality of storage tanks comprise at least two barrier film jars and have combination memory capacity, and said combination memory capacity is greater than 170,000m
3, be preferably more than or equal about 180,000m
3
2. ship as claimed in claim 1 (1); Wherein said at least two barrier film jars comprise the first barrier film jar (600b) with first memory capacity; And said at least two barrier film jars comprise the one or more less barrier film jar (630a, 630b) with second memory capacity; Said second memory capacity is less than said first memory capacity, and said less barrier film jar is suitable as the impouring jar of the hydrocarbon stream of cooling.
3. ship as claimed in claim 2, wherein each independent (630a, said second memory capacity 630b) is equal to or less than the half the of said first memory capacity than the micromesentery jar.
4. ship as claimed in claim 3; Said ship comprises two or more less barrier film jars (630a, 630b), and the combination memory capacity of wherein said less barrier film jar (630a, 630b) is equal to or greater than the minimum permissible high loadings of the said first barrier film jar (600b).
5. ship as claimed in claim 3 (1); The combination memory capacity of wherein said less barrier film jar (630a, 630b) equals the N-M% of first memory capacity of the said first barrier film jar (600b) at least; Wherein rock danger according to permissible; N is a minimum permissible high filling percentage for the first barrier film jar, and M is the low filling percentage of maximum admissible.
6. like each described ship (1) among the claim 2-5; Wherein said ship (1) has along the roughly elongated shape of longitudinal axis, and said less barrier film jar (630a, 630b) has on the direction perpendicular to longitudinal axis than the little width of the said first barrier film jar (600b).
7. ship as claimed in claim 6, the width of wherein said less barrier film jar (630a, 630b) are equal to or less than width half the of the said first barrier film jar (600b).
8. like each described ship among the claim 2-7, said ship comprises one or more propellers, so that during the hydrocarbon with cooling is transported to the said first barrier film storage tank (600b) from said impouring jar (630a, 630b), make ship stable.
9. each described ship (1) as in the aforementioned claim, one or more in wherein said at least two barrier film storage tanks (600) are selected from following group, and this group comprises the storage tank that Mark III and No.96 type design.
10. like each described ship (1) in the aforementioned claim, wherein said a plurality of storage tanks (600) comprise (SPB) storage tank of one or more prismatic IMO types " B " that support certainly.
11. like each described ship (1) in the aforementioned claim, wherein said a plurality of storage tanks (60) also comprise a SPB storage tank (600) as the impouring jar of the hydrocarbon stream of cooling.
12. like each described ship (1) in the aforementioned claim, said ship also comprises:
Be used to unload the assembly (650) of the hydrocarbon of cooling, said assembly comprises:
The loading and unloading arm (655) of balance; First place (660) that said loading and unloading arm is installed on ship (1) or the platform is located; And comprise compasses formula pipe-line system (665,670), an end of said pipe-line system is fixed on the base portion (675), and is provided with connected system (680) at place, the other end; Said connected system is used for said pipe-line system (665,670) is connected to coupling arrangement (750), and said coupling arrangement is installed in second place (760) and locates;
Said compasses formula pipe-line system (665,670) comprises the hydrocarbon stream feed-line (610) of cooling; The hydrocarbon stream feed-line (610) of said cooling is communicated with said one or more storage tanks (600) fluid at place, an end, and is attached to said connected system (680) at place, the other end;
First hawser (685), said first hawser are attached to through one in its end and are suitable for the device (690) that makes this hawser bear constant-tension; And
Connect capstan winch (696); Connection cable (695) is wrapped on the said connection capstan winch, said connected system (680) is taken to the position that is connected with said coupling arrangement (750) with the constant-tension that is used for allowing opposing to be applied on first hawser (685) that combines with said connected system (680).
13. like each described ship (1) among the aforementioned claim 4-6, said gear has the storage tank (600) of 4 to 6 hydrocarbon that are used to cool off, and preferably has the storage tank of 5 hydrocarbon that are used to cool off.
14. like each described ship (1) in the aforementioned claim, said gear has the box hull, said hull has the ship beam of about 50m.
15. like each described ship (1) in the aforementioned claim, wherein said storage tank (600) is arranged to stern from the bow (2) of ship (1) in order.
16. ship as claimed in claim 15 (1), wherein said one or more cooling sections (50,100) are present in from the upside module of (2) second storage tanks of bow (600b) top of ship (1).
17. as each described ship (1) in the aforementioned claim; Wherein, The hydrocarbon stream (20,30) of said one or multiply cooling preferably includes one liquefied natural gas stream at least; The hydrocarbon stream of said one or multiply cooling provides with the rated capacity greater than 1.0 hundred ten thousand tons/year, and said rated capacity is preferably more than about 1.3 hundred ten thousand tons/year, more preferably is 200 ten thousand tons/year.
18. as each described ship (1) in the aforementioned claim; Said one or more compressors in the wherein said refrigerant loop (15) (200,250) are driven by electric drive (Dl, D2); Said electric drive provides electric energy by at least one double-fuel diesel generator, preferably by 6 double-fuel diesel generators electric energy is provided.
19. like each said ship (1) among the claim 1-13, wherein said one or more compressors (200,250) are directly driven by at least two aviation type air turbines.
20. like each described ship (1) in the aforementioned claim, wherein said ship (1) does not comprise the hydrocarbon stream pretreatment unit, said hydrocarbon stream pretreatment unit comprises in the group that sour gas is removed, dewatered and natural gas liquids extracts such as being selected from.
21. the method for a cooling hydrocarbon stream (10,20) in floating boat (1), said hydrocarbon stream for example is a natural gas flow, and said method may further comprise the steps at least:
(a) one or multiply hydrocarbon stream (10,20) and one or multiply cold-producing medium stream (40,45) are provided; Wherein said one or multiply cold-producing medium stream (40,45) is in one or more refrigerant loops (150), and each refrigerant loop (150) comprises one or more compressors (200,250), one or more cooler (300,350), one or more expansion gear (400,450) and one or more heat exchanger (500,550);
(b) at least a portion (70,240) of said one or the multiply cold-producing medium stream of compression (40,45) in said one or more compressors (32,34) is to provide one or multiply refrigerant compressed stream (210,260);
(c) said one or the multiply refrigerant compressed stream of cooling (210,260) in said one or more coolers (300,350) is to provide the cold-producing medium stream (310,360) of one or multiply cooling;
(d) at least a portion (380,410) in the cold-producing medium stream (210,260) of said one or multiply cooling is expanded, with the cold-producing medium stream (40,45) that provides one or multiply to expand; And
(e) in said one or more heat exchangers (500,550), make cold-producing medium stream (40,45) that said one or multiply expand and said one or multiply hydrocarbon stream (10,20) carry out heat exchange, so that one or the multiply hydrocarbon stream (20,30) that cools off of cold-producing medium stream (60,70) and one or the multiply of part evaporation at least to be provided; And
(f) make the hydrocarbon stream (30) of said one or multiply cooling flow to a plurality of storage tanks (600) downstream, said storage tank comprises at least two barrier film jars and has combination memory capacity that said combination memory capacity is 170,000m
3Or more, be preferably more than or equal about 180,000m
3
22. the method that will be transported to carrying ship (2) from the hydrocarbon according to the cooling of each described floating boat (1) among the claim 12-20, said method may further comprise the steps at least:
(a) with floating boat (1) the arrangement side by side carrying ship (2) that berths;
(b) connected system (680) is elevated to coupling arrangement (750) top that is installed on the said carrying ship (2);
(c) launch connection cable (695) from connecting capstan winch (686);
(d) connection cable (695) is fixed to the directing part segment (770) of coupling arrangement (750);
(e) loading and unloading arm (655) is manipulated to the centre position between coupling arrangement (750) and base portion (675);
(f) make first hawser (685) be in constant-tension;
(g) start said connection capstan winch; To reduce the length that connects the connection cable (695) of capstan winch expansion from this; Thereby the connected system (680) of assembly (650) is engaged with coupling arrangement (750) on the said carrying ship (2), keep first hawser (685) to be in constant-tension simultaneously;
(h) hydrocarbon stream that the hydrocarbon stream feed-line (610) of said cooling is connected to cooling receives pipeline (780), and the hydrocarbon stream of said cooling receives pipeline and is positioned on the coupling arrangement (750) of taken-over vessel (2); And
(i) hydrocarbon stream that makes at least a portion of the hydrocarbon stream of the cooling in said one or more storage tank (600) flow to the said cooling of said carrying ship (2) receives pipeline (780).
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB0822851.2 | 2008-12-15 | ||
| GB0822851A GB2466231B (en) | 2008-12-15 | 2008-12-15 | Method for cooling a hydrocarbon stream and a floating vessel therefor |
| EP09162665.5 | 2009-06-15 | ||
| EP09162665 | 2009-06-15 | ||
| PCT/EP2009/067052 WO2010069910A2 (en) | 2008-12-15 | 2009-12-14 | Method for cooling a hydrocarbon stream and a floating vessel therefor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102388286A true CN102388286A (en) | 2012-03-21 |
Family
ID=44317886
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009801499974A Pending CN102388286A (en) | 2008-12-15 | 2009-12-14 | Method for cooling a hydrocarbon stream and a floating vessel therefor |
Country Status (3)
| Country | Link |
|---|---|
| KR (1) | KR20110094068A (en) |
| CN (1) | CN102388286A (en) |
| GB (1) | GB2478089B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109334938A (en) * | 2018-11-16 | 2019-02-15 | 广州文冲船厂有限责任公司 | A kind of double fuel ship |
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| JPH08334291A (en) * | 1995-06-09 | 1996-12-17 | Kawasaki Heavy Ind Ltd | Evaporator for liquefied gas |
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| CN1247948C (en) * | 2000-09-11 | 2006-03-29 | 国际壳牌研究有限公司 | Floating plant for liquefying natural gas |
| WO2006052392A3 (en) * | 2004-11-05 | 2006-07-27 | Exxonmobil Upstream Res Co | Lng transportation vessel and method for transporting hydrocarbons |
| CN1836130A (en) * | 2003-07-09 | 2006-09-20 | 压缩能源技术公司 | A system for storage or transport of compressed gas on a floating structure |
| CN1292976C (en) * | 2000-09-14 | 2007-01-03 | Fmc技术股份有限公司 | Assembly with articulated arm for loading and unloading products, in particular fluid products |
| KR20070115240A (en) * | 2006-06-01 | 2007-12-05 | 삼성중공업 주식회사 | Anti-sloshing structure for lng cargo tank |
| CN101297144A (en) * | 2005-09-12 | 2008-10-29 | 切夫里昂美国公司 | A system using a catenary flexible conduit for transferring a cryogenic fluid |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060156758A1 (en) * | 2005-01-18 | 2006-07-20 | Hyung-Su An | Operating system of liquefied natural gas ship for sub-cooling and liquefying boil-off gas |
-
2009
- 2009-12-14 GB GB1109586.6A patent/GB2478089B/en not_active Expired - Fee Related
- 2009-12-14 CN CN2009801499974A patent/CN102388286A/en active Pending
- 2009-12-14 KR KR1020117013708A patent/KR20110094068A/en not_active Application Discontinuation
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08334291A (en) * | 1995-06-09 | 1996-12-17 | Kawasaki Heavy Ind Ltd | Evaporator for liquefied gas |
| CN1121332C (en) * | 1998-01-30 | 2003-09-17 | 挪威国家石油公司 | Loading and transporting system for liquified natural petroleum gas |
| CN1247948C (en) * | 2000-09-11 | 2006-03-29 | 国际壳牌研究有限公司 | Floating plant for liquefying natural gas |
| CN1292976C (en) * | 2000-09-14 | 2007-01-03 | Fmc技术股份有限公司 | Assembly with articulated arm for loading and unloading products, in particular fluid products |
| JP2004131024A (en) * | 2002-10-15 | 2004-04-30 | Mitsubishi Heavy Ind Ltd | Marine vessel, reliquefying system, and method for reliquefying boiloff gas in marine vessel |
| CN1836130A (en) * | 2003-07-09 | 2006-09-20 | 压缩能源技术公司 | A system for storage or transport of compressed gas on a floating structure |
| WO2005113328A1 (en) * | 2004-05-14 | 2005-12-01 | Exxonmobil Upstream Research Company | Single-compartment liquefied natural gas carrier |
| WO2006052392A3 (en) * | 2004-11-05 | 2006-07-27 | Exxonmobil Upstream Res Co | Lng transportation vessel and method for transporting hydrocarbons |
| CN101297144A (en) * | 2005-09-12 | 2008-10-29 | 切夫里昂美国公司 | A system using a catenary flexible conduit for transferring a cryogenic fluid |
| KR20070115240A (en) * | 2006-06-01 | 2007-12-05 | 삼성중공업 주식회사 | Anti-sloshing structure for lng cargo tank |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109334938A (en) * | 2018-11-16 | 2019-02-15 | 广州文冲船厂有限责任公司 | A kind of double fuel ship |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20110094068A (en) | 2011-08-19 |
| GB2478089B (en) | 2012-12-12 |
| GB2478089A (en) | 2011-08-24 |
| GB201109586D0 (en) | 2011-07-20 |
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