EP4090585A1 - Réservoir d'hydrogène en mer - Google Patents

Réservoir d'hydrogène en mer

Info

Publication number
EP4090585A1
EP4090585A1 EP21704191.2A EP21704191A EP4090585A1 EP 4090585 A1 EP4090585 A1 EP 4090585A1 EP 21704191 A EP21704191 A EP 21704191A EP 4090585 A1 EP4090585 A1 EP 4090585A1
Authority
EP
European Patent Office
Prior art keywords
hydrogen
offshore
tank
hydrogen storage
tanks
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP21704191.2A
Other languages
German (de)
English (en)
Inventor
Malcolm LANGHAM
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Rwe Offshore Wind GmbH
Original Assignee
RWE Renewables GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by RWE Renewables GmbH filed Critical RWE Renewables GmbH
Publication of EP4090585A1 publication Critical patent/EP4090585A1/fr
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
    • B63B35/44—Floating buildings, stores, drilling platforms, or workshops, e.g. carrying water-oil separating devices
    • 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
    • B63B25/12—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid closed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B22/00—Buoys
    • B63B22/24—Buoys container type, i.e. having provision for the storage of material
    • B63B22/28—Buoys container type, i.e. having provision for the storage of material submerged when not in use
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B39/00—Equipment to decrease pitch, roll, or like unwanted vessel movements; Apparatus for indicating vessel attitude
    • B63B39/02—Equipment to decrease pitch, roll, or like unwanted vessel movements; Apparatus for indicating vessel attitude to decrease vessel movements by displacement of masses
    • B63B39/03—Equipment to decrease pitch, roll, or like unwanted vessel movements; Apparatus for indicating vessel attitude to decrease vessel movements by displacement of masses by transferring liquids
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J15/00—Systems for storing electric energy
    • H02J15/008—Systems for storing electric energy using hydrogen as energy vector
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
    • B63B35/44—Floating buildings, stores, drilling platforms, or workshops, e.g. carrying water-oil separating devices
    • B63B2035/4486—Floating storage vessels, other than vessels for hydrocarbon production and storage, e.g. for liquid cargo
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B2207/00—Buoyancy or ballast means
    • B63B2207/02—Variable ballast or buoyancy
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30—Hydrogen technology
    • Y02E60/32—Hydrogen storage
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E70/00—Other energy conversion or management systems reducing GHG emissions
    • Y02E70/30—Systems combining energy storage with energy generation of non-fossil origin
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P80/00—Climate change mitigation technologies for sector-wide applications
    • Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier

Definitions

  • the invention relates to the offshore storage of hydrogen, in particular such hydrogen, which was generated using electrical energy from an offshore wind farm.
  • Wind energy can be used particularly well in offshore wind parks to generate electrical energy.
  • Cable connections to offshore wind farms are complex. This is why there are offshore wind farms without a cable connection to the mainland.
  • These generate electrical energy that is used directly on offshore platforms, for example for the production of hydrogen.
  • the hydrogen obtained in this way can be brought ashore by ship.
  • this requires intermediate storage of the hydrogen.
  • Hydrogen tanks take up much of the limited space on an offshore platform.
  • the object of the present invention is to create a possibility for offshore hydrogen storage based on the prior art described, which is space-saving and safe.
  • an offshore hydrogen storage device which comprises at least one floatable hydrogen tank.
  • the offshore hydrogen storage facility is designed and set up to be used in the sea, i.e. offshore.
  • the offshore hydrogen storage can also be referred to as a "device for storing hydrogen at a location in the sea".
  • hydrogen that was generated on an offshore platform can be stored in the offshore hydrogen storage device, in particular using electrical energy generated by means of an offshore wind parks.
  • the floatable hydrogen tank valuable space on the offshore platform can be saved.
  • a hydrogen tank on an offshore platform would require a considerable substructure the storage of hydrogen away from the offshore platform in the floating hydrogen storage tank is particularly safe.If there is an explosion in the hydrogen tank, this can be contained by the seawater.
  • a floatable hydrogen tank is to be understood as a tank that is suitable on the one hand to store hydrogen and on the other hand can float.
  • a steel tank for example, can store hydrogen. Even if the hydrogen tank preferably does not allow any hydrogen to escape, losses cannot be completely avoided in practice.
  • a hydrogen tank can float if it is dimensioned in such a way that it generates sufficient buoyancy to compensate for its own weight. The buoyancy force results from the amount of water displaced by the hydrogen tank, i.e. it depends on how far the hydrogen tank is immersed in the water.
  • the weight of the filled hydrogen tank results on the one hand from its own weight, on the other hand from the weight of the hydrogen in the hydrogen tank. Since hydrogen is very light, the weight of the hydrogen can be almost neglected.
  • the hydrogen tank can have a mass of 401 and hold a maximum of 400 kg of hydrogen.
  • the mass of the hydrogen is therefore a maximum of only around 1% of the total mass of the filled hydrogen tank.
  • a hydrogen tank should therefore be considered to be buoyant if it is buoyant when empty, i.e. if its maximum buoyancy force (which occurs when the water hydrogen tank is completely submerged) is greater than the weight resulting from the mass of the empty hydrogen tank.
  • the hydrogen tank dips so far into the water that the buoyancy force and the weight force are in equilibrium with one another.
  • the buoyancy can be achieved through the choice of dimensions, materials and / or wall thicknesses. Even if the mass of the hydrogen is comparatively low, it is preferred that the hydrogen tank is only filled to the extent that it is buoyant even when it is filled.
  • the filling of the hydrogen tank can be adjusted via the pressure of the filled hydrogen.
  • the offshore hydrogen storage device is preferably floatable as a whole.
  • the hydrogen tank is preferably used as a floating body, so that additional floating bodies are not required.
  • the offshore hydrogen storage system prefferably has a single hydrogen tank.
  • the offshore hydrogen storage device comprises a plurality of buoyant hydrogen tanks attached to one another.
  • the hydrogen tank described above is one of the plurality of hydrogen tanks.
  • All hydrogen tanks are preferably designed in the same way.
  • the hydrogen tanks can be attached to one another directly or indirectly.
  • two adjacent hydrogen tanks can be in direct contact with one another and thereby be fastened directly to one another.
  • an intermediate element can be arranged between two adjacent hydrogen tanks, via which the two hydrogen tanks are indirectly connected to one another. It is also not necessary that every hydrogen tank has a connection to every other hydrogen tank. It is sufficient that the hydrogen tanks are connected as a whole.
  • the hydrogen tanks are preferably fastened to one another via a frame, in particular made of steel.
  • the water- Fabric tanks with the frame thus result in an overall construction that is preferably buoyant as a whole.
  • the hydrogen tanks can be attached to one another via the frame, for example in a port.
  • the offshore hydrogen storage system formed in this way can then be towed to the desired position offshore using a tug.
  • the offshore hydrogen storage device is preferably of modular design in such a way that the individual hydrogen tanks each form a module. The number of hydrogen tanks can easily be changed and adapted to requirements.
  • the offshore hydrogen storage facility also has a gangway which is attached to the at least one hydrogen tank.
  • the gangway is a structure that a worker can walk over, for example to carry out maintenance work.
  • the gangway is preferably arranged so that it is arranged above the surface of the water, at least for maintenance purposes.
  • the gangway is part of the frame through which a plurality of the hydrogen tanks are attached to one another.
  • the gangway preferably has several sections, via which preferably all hydrogen tanks can be reached for maintenance purposes.
  • the offshore hydrogen storage facility is anchored on the sea bed.
  • the offshore hydrogen storage device is preferably anchored to the sea bed via at least one rope or at least one chain - in particular at least one anchor chain.
  • the offshore hydrogen storage unit floats in normal operation.
  • the offshore hydrogen storage tank is anchored on the seabed to prevent it drifting away.
  • at least one rope is provided, which on the one hand connects to the offshore hydrogen storage system and on the other hand is connected to the sea bed, for example via an anchor.
  • the rope and the anchor are part of the offshore hydrogen storage system.
  • the at least one hydrogen tank is held on a pole which is attached to the sea bed.
  • the pile can also be referred to as a monopile.
  • the pile is preferably arranged vertically, i.e. perpendicular to the sea surface.
  • the pile is preferably dimensioned so that it projects over the sea surface Hydrogen tank can easily be attached to the pile.
  • the pile is visible even if the at least one hydrogen tank is arranged below the sea surface.
  • the pile protects the offshore hydrogen storage system against drifting.
  • the pile is part of the Offshore hydrogen storage: With the exception of the pile, the offshore hydrogen storage is preferably buoyant.
  • the at least one hydrogen tank can be moved along the pile.
  • the pile prevents the offshore hydrogen storage system from drifting, but allows the at least one hydrogen tank to move up and down.
  • the at least one hydrogen tank can therefore move perpendicular to the water surface.
  • the pile is relieved to the extent that the weight force and the buoyancy force of the at least one hydrogen tank do not act on the pile.
  • the offshore hydrogen storage facility further comprises a ballast tank, wherein the at least one hydrogen tank can be moved below the surface of the water by filling the ballast tank.
  • the ballast tank is preferably attached to the at least one hydrogen tank, in particular via the frame.
  • the ballast tank can be filled with water. In the simplest case, sea water is used for this.
  • the offshore hydrogen storage system preferably has a plurality of ballast tanks. These are preferably arranged symmetrically so that the at least one hydrogen tank remains in the balance when it is lowered. In general, the at least one hydrogen tank can also be kept in balance by filling the ballast tanks differently.
  • the at least one hydrogen tank By filling the ballast tanks, the at least one hydrogen tank can be lowered so that it is completely below the surface of the water.
  • the offshore hydrogen storage system is particularly safe because the risk of explosion is particularly low and the possible effects of an explosion by the seawater can be contained particularly well.
  • the at least one hydrogen tank is connected to the hydrogen generator via at least one line.
  • the described advantages and features of the offshore hydrogen storage device can be used and transferred to the arrangement, and vice versa.
  • the offshore hydrogen storage of the arrangement is preferably designed as described be.
  • Hydrogen can be generated on the offshore platform with the hydrogen generator, in particular using electrical energy that is generated with an offshore wind farm.
  • the hydrogen formed in this way can be stored in the offshore hydrogen storage facility. This is particularly possible in the gaseous state.
  • the at least one hydrogen tank is about the at least one line is connected to the hydrogen generator.
  • One line is preferably laid at least partially on the seabed. This can prevent the line from being damaged, for example, by a ship that is traveling between the offshore platform and the offshore hydrogen storage facility.
  • the stored hydrogen can be transported away by ship, for example.
  • the stored hydrogen can also be liquefied on the offshore platform and / or used to manufacture other products such as LOHC.
  • the liquid hydrogen or the product obtained can then be transported away by ship.
  • the described advantages and features of the offshore hydrogen storage and the arrangement are applicable to the method and transferable, and vice versa.
  • the offshore hydrogen storage facility and the arrangement are preferably intended and set up for operation in accordance with the method.
  • the method is preferably carried out with the offshore hydrogen storage device described, in particular in connection with the arrangement described.
  • the at least one hydrogen tank is kept below the water surface during normal operation and is at least partially raised above the water surface for maintenance purposes. It is sufficient that a respective upper section of the at least one hydrogen tank is raised above the water surface for maintenance purposes.
  • Fig. 1 a plan view of an arrangement according to the invention
  • Fig. 2 a perspective view of a first embodiment of an offshore hydrogen storage device for the arrangement from Fig. 1,
  • FIG. 3 a side view of a second embodiment of an offshore hydrogen storage device for the arrangement from FIG. 1 in normal operation
  • FIG. 4 shows a side view of the offshore hydrogen storage device from FIG. 3 in a state for maintenance purposes
  • FIGS. 3 and 4 a perspective view of the offshore hydrogen storage device from FIGS. 3 and 4 in normal operation.
  • Fig. 1 shows an arrangement 9 with an offshore platform 10 and an offshore hydrogen storage device 1.
  • the offshore platform 10 has a hydrogen generator 11, with which hydrogen can be generated in particular using electrical energy from an offshore wind park .
  • This hydrogen in particular as a gas, can be fed to the offshore hydrogen storage device 1 via a line 12 in order to be stored in the offshore hydrogen storage device 1.
  • the offshore hydrogen storage device 1 has several floatable hydrogen tanks 2.
  • 4 x 4, ie 16 hydrogen tanks 2 are provided. These are fastened to one another via a frame 13.
  • the part of the frame 13 that can be seen in FIG. 1 is formed as a gangway 3.
  • maintenance work can be carried out via gangway 3.
  • the hydrogen tanks 2 shows a first embodiment of an offshore hydrogen storage device 1 for the arrangement 9 from FIG.
  • the hydrogen tanks 2 therefore float. That is possible. because the hydrogen tanks 2 are dimensioned in such a way that their buoyancy force just compensates for the weight force.
  • they are anchored to the sea floor 6 by means of ropes 4, four here by way of example.
  • the gangway 3 and the other parts of the frame 13 are also shown.
  • 3 to 5 show a second embodiment of an offshore hydrogen storage device 1 for the arrangement 9 from FIG.
  • the hydrogen tanks 2 are movable along the pole 5 - that is, up and down. In doing so, they are led through post 5.
  • the position of the hydrogen tanks 2 on the pole 5 can be set. It is thus possible that the hydrogen tanks 2 can be kept below the water surface 8 during normal operation when the ballast tanks 7 are filled (FIG. 3) and can be raised at least partially above the water surface 8 for maintenance purposes.
  • the hydrogen tanks 2 are fastened to one another via a frame 13. This is not designed as a gangway - but this would also be possible in this embodiment, please include.
  • the offshore hydrogen storage tank 1 has a floatable hydrogen tank 2, which can be arranged in the water away from an offshore platform 10 with hydrogen generator 11.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Power Engineering (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)

Abstract

La présente invention concerne un réservoir d'hydrogène en mer (1) comprenant au moins un réservoir d'hydrogène flottant (2). Le réservoir d'hydrogène en mer (1) permet de stocker l'hydrogène en mer à faible coût et en toute sécurité, en particulier une fois que l'hydrogène a été généré à l'aide de l'énergie électrique d'un parc éolien en mer. À cet effet, le réservoir d'hydrogène en mer (1) comprend un réservoir d'hydrogène flottant (2) qui peut être disposé dans l'eau séparée d'une plate-forme en mer (10) équipée d'un générateur d'hydrogène (11).
EP21704191.2A 2020-02-03 2021-01-29 Réservoir d'hydrogène en mer Pending EP4090585A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102020102633.1A DE102020102633A1 (de) 2020-02-03 2020-02-03 Offshore-Wasserstoffspeicher
PCT/EP2021/052194 WO2021156158A1 (fr) 2020-02-03 2021-01-29 Réservoir d'hydrogène en mer

Publications (1)

Publication Number Publication Date
EP4090585A1 true EP4090585A1 (fr) 2022-11-23

Family

ID=74572730

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21704191.2A Pending EP4090585A1 (fr) 2020-02-03 2021-01-29 Réservoir d'hydrogène en mer

Country Status (4)

Country Link
US (1) US20230065912A1 (fr)
EP (1) EP4090585A1 (fr)
DE (1) DE102020102633A1 (fr)
WO (1) WO2021156158A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114263568A (zh) * 2022-03-03 2022-04-01 武汉新能源研究院有限公司 一种海上风电储能系统
CN114811399B (zh) * 2022-03-22 2024-04-30 北京潞电电气设备有限公司 一种水底建设储氢室

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE441030T1 (de) * 2002-03-08 2009-09-15 Ocean Wind Energy Systems Offshore-windenergieanlage
DE10219062A1 (de) 2002-04-29 2003-11-13 Walter Schopf Offshore-Windenergieanlage
US7242107B1 (en) * 2003-03-17 2007-07-10 Harry Edward Dempster Water-based wind-driven power generation using a submerged platform
DE102005040808A1 (de) 2005-08-29 2007-03-08 Schopf, Walter, Dipl.-Ing. Einrichtung zur Stabilisierung schwimmender Offshore-Windenergieanlagen unter Einbeziehung modifizierter Wasserkraftmaschinen zur Stromgewinnung aus der Energie der Meeresströmung

Also Published As

Publication number Publication date
DE102020102633A1 (de) 2021-08-05
WO2021156158A1 (fr) 2021-08-12
US20230065912A1 (en) 2023-03-02

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