WO2023120323A1 - アンモニア水貯留システム及びアンモニア燃料船 - Google Patents
アンモニア水貯留システム及びアンモニア燃料船 Download PDFInfo
- Publication number
- WO2023120323A1 WO2023120323A1 PCT/JP2022/046043 JP2022046043W WO2023120323A1 WO 2023120323 A1 WO2023120323 A1 WO 2023120323A1 JP 2022046043 W JP2022046043 W JP 2022046043W WO 2023120323 A1 WO2023120323 A1 WO 2023120323A1
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- WO
- WIPO (PCT)
- Prior art keywords
- ammonia water
- ammonia
- water storage
- storage tank
- line
- 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.)
- Ceased
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63J—AUXILIARIES ON VESSELS
- B63J4/00—Arrangements of installations for treating ballast water, waste water, sewage, sludge, or refuse, or for preventing environmental pollution not otherwise provided for
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/54—Nitrogen compounds
- B01D53/58—Ammonia
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/77—Liquid phase processes
- B01D53/78—Liquid phase processes with gas-liquid contact
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B13/00—Conduits for emptying or ballasting; Self-bailing equipment; Scuppers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B17/00—Vessels parts, details, or accessories, not otherwise provided for
- B63B17/06—Refuse discharge, e.g. for ash
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B83/00—Rebuilding or retrofitting vessels, e.g. retrofitting ballast water treatment systems
- B63B83/40—Rebuilding or retrofitting vessels, e.g. retrofitting ballast water treatment systems for reducing risks of pollution or contamination; for improving safety
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H21/00—Use of propulsion power plant or units on vessels
- B63H21/38—Apparatus or methods specially adapted for use on marine vessels, for handling power plant or unit liquids, e.g. lubricants, coolants, fuels or the like
Definitions
- the present invention relates to an ammonia water storage system and an ammonia fuel ship, and more particularly to an ammonia water storage system capable of temporarily storing ammonia water on board and an ammonia fuel ship equipped with the ammonia water storage system.
- ammonia-fueled ships the boiling point of ammonia is as low as -33°C under atmospheric pressure. If the liquefied ammonia leaks into the atmosphere, the vaporized ammonia gas will diffuse. Since ammonia gas is highly toxic, it is important to prevent liquefied ammonia from leaking and to minimize the impact on the human body and the environment when it leaks.
- the present invention was invented in view of such problems, and aims to provide an ammonia water storage system and an ammonia fuel ship that can reduce the impact of ammonia leakage on the human body and the environment.
- an ammonia water storage tank that stores ammonia gas or ammonia water generated on board in the form of ammonia water
- a recovery line that conveys the ammonia gas or the ammonia water to the ammonia water storage tank
- the A water supply line for supplying seawater to the ammonia water storage tank
- a drainage line for discharging the ammonia water stored in the ammonia water storage tank to the outside of the ship
- a concentration meter for measuring the concentration of the ammonia water.
- the ammonia water storage tank may be configured to also serve as a ballast tank.
- a plurality of the ammonia water storage tanks may be arranged in the longitudinal direction of the ship.
- the inner surface of the ammonia water storage tank may be coated to prevent corrosion.
- the ammonia water storage tank may be equipped with an air vent pipe and a pressure adjustment mechanism.
- the recovery line is, for example, a line that transports ammonia water generated on board, the purge gas containing the ammonia gas, or the ammonia water generated during the purge process.
- the drainage line may include an ammonia neutralization device capable of adjusting the concentration of the ammonia water.
- ammonia neutralization device may be arranged in a ballast water treatment device.
- the drainage line may include a control valve that controls the drainage of the ammonia water based on the concentration of the ammonia water.
- the ammonia water storage system may include a control device that controls to supply seawater to the ammonia water storage tank based on the measured value of the concentration meter.
- the concentration meter may be arranged in the ammonia water storage tank, may be arranged in the recovery line, or may be arranged in the drainage line.
- an ammonia-fueled ship that uses ammonia as fuel and is characterized by including an ammonia water storage system having any one of the configurations described above.
- ammonia water storage system and ammonia fuel ship according to the present invention described above, it is possible to store ammonia that has leaked or generated on board, and it is possible to reduce the impact of ammonia leakage on the human body and the environment.
- FIG. 1 is a schematic configuration diagram of an ammonia-fueled ship;
- FIG. It is a figure which shows an example of arrangement
- FIG. 1 is a diagram showing the configuration of an ammonia water storage system according to one embodiment of the present invention.
- FIG. 2 is a schematic configuration diagram of an ammonia-fueled ship.
- FIG. 3 is a diagram showing an example of the arrangement of the aqueous ammonia storage tank, (A) showing the first example and (B) showing the second example.
- An ammonia water storage system 1 includes, for example, as shown in FIG.
- a recovery line 3 that conveys gas or ammonia water to the ammonia water storage tank 2
- a water supply line 4 that supplies seawater to the ammonia water storage tank 2
- a drainage that discharges the ammonia water stored in the ammonia water storage tank 2 overboard.
- ammonia water storage system 1 is mounted, for example, on the ammonia-fueled ship 8 shown in FIG.
- the ammonia-fueled ship 8 is a ship that uses ammonia as fuel to obtain a propulsive force for the hull.
- the ammonia fuel ship 8 includes, for example, an ammonia fuel tank 81 that stores ammonia as a fuel, a reliquefaction device 82 that reliquefies vaporized gas generated from the ammonia fuel tank 81, and an ammonia gas that burns ammonia to generate power.
- a fuel engine 83 , a fuel supply device 84 that supplies ammonia from the ammonia fuel tank 81 to the ammonia fuel engine 83 , and a bunker station 85 that supplies ammonia to the ammonia fuel tank 81 are provided.
- the configuration of the ammonia-fueled ship 8 shown in FIG. 2 is merely an example, and is not limited to the illustrated configuration and arrangement.
- the ammonia-fueled ship 8 may be a hybrid ship using other propulsion devices such as a diesel engine and an electric motor.
- the ammonia-fueled ship 8 may adopt a multi-fuel engine that switches and uses a plurality of fuels.
- the ammonia water storage tank 2 is a tank mounted on the ammonia fuel ship 8.
- the ammonia water storage tank 2 shown in FIG. 3A is configured as a dedicated tank for storing only ammonia water.
- the ammonia water storage tank 2 is arranged near the residential area 86, for example.
- the number, arrangement, shape, etc. of the aqueous ammonia storage tank 2 are not limited to the illustrated configuration.
- the ammonia-fueled ship 8 is equipped with a ballast tank 87 capable of pouring and discharging ballast water (seawater) for adjusting the draft, inclination, etc. of the hull.
- the ballast tanks 87 include, for example, a first ballast tank 87a arranged along the bottom of the ship, a second ballast tank 87b (top side tank) arranged along the upper side of the hold, and a third ballast tank 87b arranged at the stern. and a ballast tank 87c. Note that the arrangement of the ballast tanks 87 differs depending on the ship type, and is not limited to the arrangement shown in the figure.
- the first ballast tank 87a and the second ballast tank 87b are divided into a plurality of sections along the length of the ship, and are configured so that ballast water can be poured into and discharged from each of them.
- the third ballast tank 87c is configured to be able to pour and drain ballast water separately from the first ballast tank 87a and the second ballast tank 87b.
- the ammonia water storage tank 2 shown in FIG. 3(B) is configured so that the ammonia water storage tank 2 also serves as the ballast tank 87 .
- the ammonia water storage tank 2 is arranged in a part of the ballast tank 87 .
- FIG. 3B for convenience of explanation, of the ballast tanks 87, the tanks that are also used as the ammonia water storage tanks 2 are shown grayed out.
- the ammonia water storage tanks 2 are arranged, for example, on the bow side and stern side of the first ballast tank 87a and on the third ballast tank 87c. By arranging a plurality of ammonia water storage tanks 2 in the longitudinal direction, the ammonia water can be stored in a well-balanced manner. It is arbitrary which tank among the ballast tanks 87 is also used as the aqueous ammonia storage tank 2, and is not limited to the illustrated arrangement.
- the ammonia water storage tank 2 whether it is a dedicated tank or a dual-purpose tank, has its inner surface painted to prevent corrosion.
- As the paint one that is resistant to an aqueous ammonia solution is used.
- the ammonia water storage tank 2 also includes an air vent pipe 21 and a pressure adjustment mechanism 22, as shown in FIG.
- the air vent pipe 21 is a pipe for venting the air in the tank when collecting ammonia water or when seawater is supplied.
- the air vent pipe 21 may be provided with an on-off valve 23 .
- the on-off valve 23 By closing the on-off valve 23, it is possible to suppress diffusion of ammonia gas (boil-off gas) out of the tank when the ammonia water is stored.
- the on-off valve 23 is opened when collecting ammonia water or when supplying seawater.
- the pressure adjustment mechanism 22 is, for example, a breather valve or a vent post.
- the pressure adjustment mechanism 22 is a device for suppressing excessive negative pressure in the aqueous ammonia storage tank 2 when the on-off valve 23 is closed.
- the recovery line 3 includes, for example, a first recovery line 31 that carries ammonia water generated on board, a second recovery line 32 that carries purge gas containing ammonia gas, and a ammonia water generated in the process of purging. a third recovery line 33;
- each device such as the ammonia fuel tank 81, the reliquefaction device 82, the ammonia fuel engine 83, the fuel supply device 84, the bunker station 85, and the piping connecting these, which constitute the ammonia fuel ship 8 shown in FIG. may leak.
- a water sprayer 34 for spraying water on the leakage target location 88 where there is a possibility of leakage.
- the water (ammonia water) that has been sprayed and has absorbed the ammonia gas is recovered by a recovery means 35 such as a drip tray or a drain port installed at the leakage target location 88 .
- the ammonia water recovered by the recovery means 35 is conveyed to the ammonia water storage tank 2 via the first recovery line 31 .
- the first recovery line 31 may be provided with a filter 31a for removing foreign matter and an on-off valve 31b for controlling the transportation of ammonia water.
- the ammonia fuel is excluded and cut off when the equipment is stopped (including emergency shutdown), when switching fuels in a multi-fuel engine, during maintenance, etc. Therefore, it is necessary to perform purging with nitrogen gas.
- the second recovery line 32 is a route for carrying ammonia gas to the ammonia water storage tank 2
- the third recovery line 33 is a route for carrying ammonia water to the ammonia water storage tank 2 .
- the purge gas and the ammonia gas during the purge process are separated from each other, but the second recovery line 32 and the third recovery line 33 may be on the same route, or may be joined in the middle.
- the ammonia gas contained in the purge gas may be converted into ammonia water and then conveyed to the ammonia water storage tank 2 .
- the water supply line 4 is a route for supplying seawater from the seawater inlet 41 (sea chest) and conveying it to the ammonia water storage tank 2 .
- the water supply line 4 includes, for example, a ballast pump 42 that sucks and conveys seawater, a filter 43 that removes sucked foreign matter, and an on-off valve 44 that controls opening and closing of the seawater inlet 41 .
- the water supply line 4 may be equipped with a ballast water treatment device 46 arranged in the bypass line 45 .
- the ballast water treatment device 46 is a device that kills or inactivates harmful aquatic organisms and pathogens contained in inhaled seawater (ballast water).
- Switching valves 47 and 48 for switching paths are arranged in the water supply line 4 and the bypass line 45, respectively.
- the water supply line 4 also has a switching valve 49 for switching between the water supply system and the drainage system.
- the drainage line 5 is a route for discharging the ammonia water stored in the ammonia water storage tank 2 overboard at sea.
- the drainage line 5 includes, for example, a concentration meter 51 for measuring the concentration (hydrogen ion exponent pH) of the discharged ammonia water, and a control valve 52 for controlling drainage of the ammonia water.
- concentration meter 51 for measuring the concentration (hydrogen ion exponent pH) of the discharged ammonia water
- control valve 52 for controlling drainage of the ammonia water.
- the control valve 52 is closed. If the densitometer 51 is omitted, the control valve 52 may be controlled based on the measured value of the densitometer 6.
- the drainage line 5 may also include an ammonia neutralization device 53 capable of adjusting the concentration of ammonia water (hydrogen ion exponent pH).
- the ammonia neutralization device 53 adjusts the concentration of ammonia water (hydrogen ion exponent pH) by injecting a neutralizing agent into the ammonia water.
- the ammonia neutralization device 53 is arranged in the ballast water treatment device 46, for example.
- the drainage line 5 may include a bypass line 54 for draining ammonia water via the ballast pump 42 and a switching valve 55 for controlling opening and closing of the bypass line 54 .
- FIG. 4 is an explanatory diagram of the water supply system of the ammonia water storage tank.
- the control valve 52 and the switching valve 55 are set closed, and the on-off valve 44 and the switching valve 49 are set open.
- the switching valve 47 is set open and the switching valve 48 is set closed. After that, by operating the ballast pump 42 , seawater is supplied to the ammonia water storage tank 2 through the first water supply route La passing through the seawater inlet 41 , the filter 43 and the ballast pump 42 .
- the switching valve 47 is set to closed and the switching valve 48 is set to open.
- seawater is supplied to the ammonia water storage tank 2 through the second water supply route Lb passing through the seawater inlet 41 , the filter 43 , the ballast pump 42 , and the ballast water treatment device 46 .
- FIG. 5 is an explanatory diagram of the drainage system of the ammonia water storage tank.
- the on-off valve 44 and the switching valve 49 are closed, and the control valve 52 and the switching valve 55 are opened.
- the concentration of the ammonia water in the ammonia water storage tank 2 is equal to or lower than the concentration that can be discharged overboard, the ammonia water can be discharged to the outside without using the ammonia neutralization device 53 .
- the switching valve 47 is set open and the switching valve 48 is set closed. After that, by operating the ballast pump 42, the ammonia water is discharged outside from the ammonia water storage tank 2 through the first drainage path Lc via the filter 43 and the ballast pump 42.
- the switching valve 47 is set to closed, and the switching valve 48 is set to open. After that, by operating the ballast pump 42 , the ammonia water is discharged outside from the ammonia water storage tank 2 through the second drainage route Ld passing through the ammonia neutralization device 53 , the filter 43 and the ballast pump 42 .
- the ammonia water storage tank 2 may be provided with a landing line 56 for landing the stored ammonia water at the time of mooring or the like.
- a landing line 56 for landing the stored ammonia water at the time of mooring or the like.
- the drawing of the landing line 56 is abbreviate
- Such landing line 56 is included in the term "drainage line" in this embodiment.
- the concentration meter 6 is a sensor that monitors the concentration of the ammonia water stored in the ammonia water storage tank 2.
- the densitometer 6 is, for example, a sensor that measures the hydrogen ion exponent pH of ammonia water.
- the densitometer 6 is arranged at the bottom of the aqueous ammonia storage tank 2, for example.
- the concentration meter 6 may be arranged in the recovery line 3 serving as the inlet of the aqueous ammonia storage tank 2 or may be provided in the drainage line 5 serving as the outlet of the aqueous ammonia storage tank 2 .
- the control device 7 is a device that controls the water supply system so as to dilute the ammonia water stored in the ammonia water storage tank 2 based on the measured value of the concentration meter 6 . For example, a threshold value for reducing corrosion of the ammonia water storage tank 2 and a threshold value for overboard discharge are set in the control device 7. Seawater is supplied into the water storage tank 2 .
- the controller 7 may be incorporated in a ballast water controller.
- seawater ballast water
- ammonia water storage system 1 and the ammonia fuel ship 8 according to the present embodiment described above, it is possible to recover ammonia that has leaked or generated on board and store it in the form of ammonia water. It is possible to reduce the impact on
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- Ocean & Marine Engineering (AREA)
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- Combustion & Propulsion (AREA)
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Abstract
Description
Claims (12)
- 船上で発生したアンモニアガス又はアンモニア水をアンモニア水の状態で貯留するアンモニア水貯留タンクと、
前記アンモニアガス又は前記アンモニア水を前記アンモニア水貯留タンクに搬送する回収ラインと、
前記アンモニア水貯留タンクに海水を供給する給水ラインと、
前記アンモニア水貯留タンクに貯留したアンモニア水を船外に排出する排水ラインと、
前記アンモニア水の濃度を計測する濃度計と、
を備えていることを特徴とするアンモニア水貯留システム。 - 前記アンモニア水貯留タンクは、バラストタンクと兼用するように構成されている、請求項1に記載のアンモニア水貯留システム。
- 前記アンモニア水貯留タンクは、船長方向に複数配置されている、請求項2に記載のアンモニア水貯留システム。
- 前記アンモニア水貯留タンクは、内面に腐食防止用の塗装が施されている、請求項1に記載のアンモニア水貯留システム。
- 前記アンモニア水貯留タンクは、空気抜き管及び圧力調整機構を備えている、請求項1に記載のアンモニア水貯留システム。
- 前記回収ラインは、船上で発生したアンモニア水、前記アンモニアガスを含むパージガス又はパージ処理の過程で発生したアンモニア水を搬送するラインである、請求項1に記載のアンモニア水貯留システム。
- 前記排水ラインは、前記アンモニア水の濃度を調整可能なアンモニア中和装置を備える、請求項1に記載のアンモニア水貯留タンク。
- 前記アンモニア中和装置は、バラスト水処理装置内に配置されている、請求項7に記載のアンモニア水貯留タンク。
- 前記排水ラインは、前記アンモニア水の濃度に基づいて前記アンモニア水の排水を制御する制御弁と、を備える、請求項1に記載のアンモニア水貯留タンク。
- 前記濃度計の計測値に基づいて前記アンモニア水貯留タンクに海水を給水するように制御する制御装置を含む、請求項1に記載のアンモニア水貯留タンク。
- 前記濃度計は、前記アンモニア水貯留タンク、前記回収ライン又は前記排水ラインに配置される、請求項1に記載のアンモニア水貯留タンク。
- アンモニアを燃料とするアンモニア燃料船であって、請求項1~11の何れか一項に記載のアンモニア水貯留システムを含む、ことを特徴とするアンモニア燃料船。
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202280085224.XA CN118541308A (zh) | 2021-12-22 | 2022-12-14 | 氨水储存系统及氨燃料船 |
| KR1020247024756A KR20240125656A (ko) | 2021-12-22 | 2022-12-14 | 암모니아수 저류 시스템 및 암모니아 연료선 |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2021208791A JP7728165B2 (ja) | 2021-12-22 | 2021-12-22 | アンモニア水貯留システム及びアンモニア燃料船 |
| JP2021-208791 | 2021-12-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2023120323A1 true WO2023120323A1 (ja) | 2023-06-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2022/046043 Ceased WO2023120323A1 (ja) | 2021-12-22 | 2022-12-14 | アンモニア水貯留システム及びアンモニア燃料船 |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP7728165B2 (ja) |
| KR (1) | KR20240125656A (ja) |
| CN (1) | CN118541308A (ja) |
| WO (1) | WO2023120323A1 (ja) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2025032763A1 (ja) * | 2023-08-09 | 2025-02-13 | 日本郵船株式会社 | アンモニア回収システム及び船舶 |
| JP7621534B1 (ja) * | 2024-02-29 | 2025-01-24 | 三菱化工機株式会社 | アンモニア含有廃液の中和処理システム及びアンモニア含有廃液の中和処理方法 |
| JP7638419B1 (ja) * | 2024-04-10 | 2025-03-03 | 大阪瓦斯株式会社 | 船舶及びその航行計画を生成する情報処理装置 |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2019178840A (ja) * | 2018-03-30 | 2019-10-17 | 株式会社Ihi | 燃焼装置、ガスタービン及び発電装置 |
| WO2019204857A1 (en) * | 2018-04-26 | 2019-10-31 | Renam Properties Pty Ltd | Offshore energy generation system |
| JP2021113042A (ja) * | 2020-01-20 | 2021-08-05 | 株式会社名村造船所 | 液化ガス燃料船 |
| JP3234399U (ja) * | 2021-06-10 | 2021-10-07 | ソンボ インダストリーズ カンパニー,リミテッド | 船舶用燃料供給システム |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7701707B2 (ja) | 2020-03-31 | 2025-07-02 | 国立研究開発法人 海上・港湾・航空技術研究所 | アンモニア燃焼方法、アンモニア燃焼エンジン及びそれを搭載した船舶 |
-
2021
- 2021-12-22 JP JP2021208791A patent/JP7728165B2/ja active Active
-
2022
- 2022-12-14 WO PCT/JP2022/046043 patent/WO2023120323A1/ja not_active Ceased
- 2022-12-14 CN CN202280085224.XA patent/CN118541308A/zh active Pending
- 2022-12-14 KR KR1020247024756A patent/KR20240125656A/ko active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2019178840A (ja) * | 2018-03-30 | 2019-10-17 | 株式会社Ihi | 燃焼装置、ガスタービン及び発電装置 |
| WO2019204857A1 (en) * | 2018-04-26 | 2019-10-31 | Renam Properties Pty Ltd | Offshore energy generation system |
| JP2021113042A (ja) * | 2020-01-20 | 2021-08-05 | 株式会社名村造船所 | 液化ガス燃料船 |
| JP3234399U (ja) * | 2021-06-10 | 2021-10-07 | ソンボ インダストリーズ カンパニー,リミテッド | 船舶用燃料供給システム |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2023093265A (ja) | 2023-07-04 |
| KR20240125656A (ko) | 2024-08-19 |
| CN118541308A (zh) | 2024-08-23 |
| JP7728165B2 (ja) | 2025-08-22 |
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