CN116255285A - Methanol-liquid ammonia dual-fuel ship supply system and ship - Google Patents

Methanol-liquid ammonia dual-fuel ship supply system and ship Download PDF

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Publication number
CN116255285A
CN116255285A CN202310241911.2A CN202310241911A CN116255285A CN 116255285 A CN116255285 A CN 116255285A CN 202310241911 A CN202310241911 A CN 202310241911A CN 116255285 A CN116255285 A CN 116255285A
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inlet
outlet
methanol
communicated
buffer tank
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战庭军
王敬洲
王廷勇
赵超
曾维武
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Sunrui Marine Environment Engineering Co ltd
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Sunrui Marine Environment Engineering Co ltd
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
    • F02M37/0076—Details of the fuel feeding system related to the fuel tank
    • F02M37/0082—Devices inside the fuel tank other than fuel pumps or filters
    • 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
    • B01D53/56—Nitrogen oxides
    • 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
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01C—AMMONIA; CYANOGEN; COMPOUNDS THEREOF
    • C01C1/00—Ammonia; Compounds thereof
    • C01C1/02—Preparation, purification or separation of ammonia
    • C01C1/04—Preparation of ammonia by synthesis in the gas phase
    • C01C1/0405—Preparation of ammonia by synthesis in the gas phase from N2 and H2 in presence of a catalyst
    • C01C1/0417—Preparation of ammonia by synthesis in the gas phase from N2 and H2 in presence of a catalyst characterised by the synthesis reactor, e.g. arrangement of catalyst beds and heat exchangers in the reactor
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C29/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring
    • C07C29/15—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by reduction of oxides of carbon exclusively
    • C07C29/151—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by reduction of oxides of carbon exclusively with hydrogen or hydrogen-containing gases
    • C07C29/152—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by reduction of oxides of carbon exclusively with hydrogen or hydrogen-containing gases characterised by the reactor used
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B1/00—Electrolytic production of inorganic compounds or non-metals
    • C25B1/01—Products
    • C25B1/02—Hydrogen or oxygen
    • C25B1/04—Hydrogen or oxygen by electrolysis of water
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
    • F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
    • F02M21/0203—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels characterised by the type of gaseous fuel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
    • F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
    • F02M21/0203—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels characterised by the type of gaseous fuel
    • F02M21/0206—Non-hydrocarbon fuels, e.g. hydrogen, ammonia or carbon monoxide
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
    • F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
    • F02M21/0218—Details on the gaseous fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers
    • F02M21/0221—Fuel storage reservoirs, e.g. cryogenic tanks
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
    • F02M37/04—Feeding by means of driven pumps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2251/00—Reactants
    • B01D2251/20—Reductants
    • B01D2251/206—Ammonium compounds
    • B01D2251/2062—Ammonia

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • General Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Mechanical Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
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  • Inorganic Chemistry (AREA)
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  • Biomedical Technology (AREA)
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Abstract

The invention provides a methanol-liquid ammonia dual-fuel ship supply system which comprises a liquid ammonia storage tank, a first liquid ammonia buffer tank, a first high-pressure pump, a second liquid ammonia buffer tank, a methanol storage tank, a first methanol buffer tank, a second high-pressure pump, a second methanol buffer tank, a ship host, a ship auxiliary machine, a denitration device, a carbon capture device, a methanol synthesis reactor, an ammonia synthesis reactor, a first liquefying device, a second liquefying device, a third liquid ammonia buffer tank, a first conveying pump, a second conveying pump, an electrolytic hydrogen production device and a hydrogen buffer tank. The invention can realize low carbon and even no carbon emission, and realize regeneration of methanol and liquid ammonia, thereby further reducing carbon emission and realizing energy regeneration. The system has the advantages of low carbon, energy conservation and environmental protection. The invention also provides a ship.

Description

Methanol-liquid ammonia dual-fuel ship supply system and ship
Technical Field
The invention relates to the technical field of ships, in particular to a methanol-liquid ammonia dual-fuel ship supply system and a ship.
Background
The methanol fuel and the ammonia fuel can effectively reduce CO 2 Is used for the discharge amount of the fuel. For methanol fuel, the application of a marine methanol fuel engine is mature, and the methanol fuel ship gradually tends to be marketized; for ammonia fuel, manufacturers at home and abroad are working to develop ammonia fuel engines at present, and a plurality of companies at home and abroad acquire a class society certification certificate of ammonia fuel class design. Thus, methanol and ammonia can have a large market share in future marine fuels.
However, CO produced by combustion of the conventional marine engine 2 And nitrogen oxides are generally not recycled, but are discharged to the atmosphere after being treated by tail gas, so that the low-carbon emission index of the ship is affected, and the resource waste is caused. In view of the above, it is necessary to design a ship fuel supply system capable of further reducing carbon emissions and realizing recovery and reuse of exhaust gas.
Disclosure of Invention
The invention aims to provide a methanol-liquid ammonia dual-fuel ship supply system which can realize low-carbon and even carbon-free emission and realize regeneration of methanol and liquid ammonia, thereby further reducing carbon emission and realizing energy regeneration. The system has the advantages of low carbon, energy conservation and environmental protection.
The invention provides a methanol-liquid ammonia dual-fuel ship supply system, which comprises a liquid ammonia storage tank, a first liquid ammonia buffer tank, a first high-pressure pump, a second liquid ammonia buffer tank, a methanol storage tank, a first methanol buffer tank, a second high-pressure pump, a second methanol buffer tank, a ship host, a ship auxiliary machine, a denitration device, a carbon capture device, a methanol synthesis reactor, an ammonia synthesis reactor, a first liquefying device, a second liquefying device, a third liquid ammonia buffer tank, a first conveying pump, a second conveying pump, an electrolytic hydrogen production device and a hydrogen buffer tank;
the device comprises a first liquid ammonia storage tank, a first high-pressure pump, a second liquid ammonia storage tank, a first low-pressure pump, a second liquid ammonia buffer tank, a first liquid ammonia buffer tank, a second liquid ammonia buffer tank and a ship auxiliary machine, wherein the first low-pressure pump is arranged in the liquid ammonia storage tank, an outlet of the first low-pressure pump is communicated with an inlet of the first liquid ammonia buffer tank, an outlet of the first liquid ammonia buffer tank is communicated with an inlet of the first high-pressure pump, an outlet of the first high-pressure pump is communicated with an inlet of the second liquid ammonia buffer tank, and an outlet of the second liquid ammonia buffer tank is simultaneously communicated with a liquid ammonia inlet of the ship main machine and a liquid ammonia inlet of the ship auxiliary machine;
the second low-pressure pump is arranged in the methanol storage tank, the outlet of the second low-pressure pump is communicated with the inlet of the first methanol buffer tank, the outlet of the first methanol buffer tank is communicated with the inlet of the second high-pressure pump, the outlet of the second high-pressure pump is communicated with the inlet of the second methanol buffer tank, and the outlet of the second methanol buffer tank is simultaneously communicated with the methanol inlet of the ship main engine and the methanol inlet of the ship auxiliary engine;
the tail gas outlet of the ship main engine and the tail gas outlet of the ship auxiliary engine are communicated with the waste gas inlet of the denitration device, the outlet of the denitration device is communicated with the inlet of the carbon capture device, the carbon dioxide outlet of the carbon capture device is communicated with the carbon dioxide inlet of the methanol synthesis reactor, the outlet of the methanol synthesis reactor is communicated with the inlet of the first liquefying device, the outlet of the first liquefying device is communicated with the inlet of the third alcohol buffer tank, the outlet of the third alcohol buffer tank is communicated with the inlet of the first conveying pump, and the outlet of the first conveying pump is communicated with the inlet of the methanol storage tank; the nitrogen outlet of the carbon trapping device is communicated with the nitrogen inlet of the ammonia synthesis reactor, the outlet of the ammonia synthesis reactor is communicated with the inlet of the second liquefying device, the outlet of the second liquefying device is communicated with the inlet of the third liquid ammonia buffer tank, the outlet of the third liquid ammonia buffer tank is communicated with the inlet of the second delivery pump, and the outlet of the second delivery pump is communicated with the inlet of the liquid ammonia storage tank; the hydrogen outlet of the electrolytic hydrogen production device is communicated with the inlet of the hydrogen buffer tank, and the outlet of the hydrogen buffer tank is simultaneously communicated with the hydrogen inlet of the methanol synthesis reactor and the hydrogen inlet of the ammonia synthesis reactor.
Further, the methanol-liquid ammonia dual-fuel ship supply system further comprises a water purifier, a pure water buffer tank and a water pump, wherein an outlet of the water purifier is communicated with an inlet of the pure water buffer tank, an outlet of the pure water buffer tank is communicated with an inlet of the water pump, an outlet of the water pump is communicated with a pure water inlet of the electrolytic hydrogen production device, an oxygen/pure water outlet of the electrolytic hydrogen production device is communicated with an inlet of the pure water buffer tank, and an oxygen outlet of the pure water buffer tank is simultaneously communicated with an oxygen inlet of a ship host machine and an oxygen inlet of a ship auxiliary machine.
Further, the methanol-liquid ammonia dual-fuel ship supply system further comprises a first heat exchanger, a second heat exchanger and a third heat exchanger, wherein the first heat exchanger is arranged on a pipeline between an outlet of the first high-pressure pump and an inlet of the second liquid ammonia buffer tank, the second heat exchanger is arranged on a pipeline between an outlet of the second high-pressure pump and an inlet of the second methanol buffer tank, and the third heat exchanger is arranged on a pipeline between an oxygen/pure water outlet of the electrolytic hydrogen production device and an inlet of the pure water buffer tank;
the liquid ammonia inlet of the first heat exchanger is communicated with the outlet of the first high-pressure pump, and the liquid ammonia outlet of the first heat exchanger is communicated with the inlet of the second liquid ammonia buffer tank; the methanol inlet of the second heat exchanger is communicated with the outlet of the second high-pressure pump, and the methanol outlet of the second heat exchanger is communicated with the inlet of the second methanol buffer tank; the oxygen/pure water inlet of the third heat exchanger is communicated with the oxygen/pure water outlet of the electrolytic hydrogen production device, and the oxygen/pure water outlet of the third heat exchanger is communicated with the inlet of the pure water buffer tank; the heat exchange medium outlet of the third heat exchanger is simultaneously communicated with the heat exchange medium inlet of the first heat exchanger and the heat exchange medium inlet of the second heat exchanger, and the heat exchange medium outlet of the first heat exchanger and the heat exchange medium outlet of the second heat exchanger are both communicated with the heat exchange medium inlet of the third heat exchanger.
Further, the methanol-liquid ammonia dual-fuel ship supply system further comprises a renewable energy power generation device and an energy storage power supply device, wherein the renewable energy power generation device is electrically connected with the energy storage power supply device, and the energy storage power supply device is electrically connected with the electrolytic hydrogen production device, the denitration device, the carbon capture device, the methanol synthesis reactor, the ammonia synthesis reactor, the first liquefaction device, the second liquefaction device, the first conveying pump and the second conveying pump.
Further, the renewable energy power generation device is one or a combination of more of a wind power generation device, a solar power generation device and a biomass power generation device.
Further, the methanol-liquid ammonia dual-fuel ship supply system further comprises a BOG buffer tank, an ammonia water tank and a water tank, wherein a BOG outlet of the liquid ammonia tank is communicated with an inlet of the BOG buffer tank, an outlet of the BOG buffer tank is communicated with an ammonia inlet of the ammonia water tank, an outlet of the water tank is communicated with an inlet of the ammonia water tank, and an ammonia water outlet of the ammonia water tank is communicated with an ammonia water inlet of the denitration device.
Further, the methanol-liquid ammonia dual-fuel ship supply system further comprises a branch pipeline, one end of the branch pipeline is communicated to a pipeline between the outlet of the ammonia synthesis reactor and the inlet of the second liquefying device, and the other end of the branch pipeline is communicated with the inlet of the ammonia tank.
Further, the methanol-liquid ammonia dual-fuel ship supply system further comprises a ventilation mast, and an exhaust gas outlet of the carbon trapping device is communicated with the ventilation mast.
Further, the electrolytic hydrogen production device is an alkaline water electrolytic hydrogen production device or a proton exchange membrane electrolytic hydrogen production device or a solid oxide electrolytic hydrogen production device.
The invention also provides a ship, which comprises the methanol-liquid ammonia dual-fuel ship supply system.
According to the methanol-liquid ammonia dual-fuel ship supply system, methanol and liquid ammonia are used as ship fuels, so that carbon emission of ships can be effectively reduced; simultaneously, NO in tail gas of a ship main engine and a ship auxiliary engine is removed by using a denitration device X Conversion to N 2 Then CO is separated out by a carbon capture device 2 And N 2 ，CO 2 And N 2 Respectively enter a methanol synthesis reactor and an ammonia synthesis reactor to react to generate methanol and ammonia, and then respectively flow back into a methanol storage tank and a liquid ammonia storage tank after being liquefied by a first liquefying device and a second liquefying device, so as to realize the regeneration of energy, further reduce the carbon emission and realize low-carbon or even carbon-free emission. Therefore, the system has the advantages of low carbon, energy conservation and environmental protection.
Drawings
Fig. 1 is a schematic structural diagram of a methanol-liquid ammonia dual-fuel ship supply system in an embodiment of the invention.
Detailed Description
The following describes in further detail the embodiments of the present invention with reference to the drawings and examples. The following examples are illustrative of the invention and are not intended to limit the scope of the invention.
The terms first, second, third, fourth and the like in the description and in the claims, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order.
As shown in fig. 1, the methanol-liquid ammonia dual-fuel ship supply system provided by the embodiment of the invention comprises a liquid ammonia storage tank 1, a first liquid ammonia buffer tank 3, a first high-pressure pump 4, a second liquid ammonia buffer tank 6, a methanol storage tank 9, a first methanol buffer tank 11, a second high-pressure pump 12, a second methanol buffer tank 14, a ship main engine 7, a ship auxiliary engine 8, a denitration device 15, a carbon capture device 16, a methanol synthesis reactor 17, an ammonia synthesis reactor 18, a first liquefying device 19, a second liquefying device 20, a third methanol buffer tank 21, a third liquid ammonia buffer tank 22, a first conveying pump 23, a second conveying pump 24, an electrolytic hydrogen production device 25 and a hydrogen buffer tank 26;
the liquid ammonia storage tank 1 is used for storing liquid ammonia, a first low-pressure pump 2 is arranged in the liquid ammonia storage tank 1, the outlet of the first low-pressure pump 2 is communicated with the inlet of a first liquid ammonia buffer tank 3, the outlet of the first liquid ammonia buffer tank 3 is communicated with the inlet of a first high-pressure pump 4, the outlet of the first high-pressure pump 4 is communicated with the inlet of a second liquid ammonia buffer tank 6, and the outlet of the second liquid ammonia buffer tank 6 is simultaneously communicated with the liquid ammonia inlet of a ship host machine 7 and the liquid ammonia inlet of a ship auxiliary machine 8;
the methanol storage tank 9 is used for storing methanol, a second low-pressure pump 10 is arranged in the methanol storage tank 9, the outlet of the second low-pressure pump 10 is communicated with the inlet of the first methanol buffer tank 11, the outlet of the first methanol buffer tank 11 is communicated with the inlet of the second high-pressure pump 12, the outlet of the second high-pressure pump 12 is communicated with the inlet of the second methanol buffer tank 14, and the outlet of the second methanol buffer tank 14 is simultaneously communicated with the methanol inlet of the marine main engine 7 and the methanol inlet of the marine auxiliary engine 8;
the tail gas outlet of the ship main engine 7 and the tail gas outlet of the ship auxiliary engine 8 are communicated with the waste gas inlet of the denitration device 15, the outlet of the denitration device 15 is communicated with the inlet of the carbon capture device 16, the carbon dioxide gas outlet of the carbon capture device 16 is communicated with the carbon dioxide gas inlet of the methanol synthesis reactor 17, the outlet of the methanol synthesis reactor 17 is communicated with the inlet of the first liquefying device 19, the outlet of the first liquefying device 19 is communicated with the inlet of the third trimethyl buffer tank 21, the outlet of the third trimethyl buffer tank 21 is communicated with the inlet of the first conveying pump 23, and the outlet of the first conveying pump 23 is communicated with the inlet of the methanol storage tank 9. The nitrogen outlet of the carbon capture device 16 is communicated with the nitrogen inlet of the ammonia synthesis reactor 18, the outlet of the ammonia synthesis reactor 18 is communicated with the inlet of the second liquefying device 20, the outlet of the second liquefying device 20 is communicated with the inlet of the third liquid ammonia buffer tank 22, the outlet of the third liquid ammonia buffer tank 22 is communicated with the inlet of the second delivery pump 24, and the outlet of the second delivery pump 24 is communicated with the inlet of the liquid ammonia storage tank 1. The hydrogen outlet of the electrolytic hydrogen production device 25 is communicated with the inlet of the hydrogen buffer tank 26, and the outlet of the hydrogen buffer tank 26 is simultaneously communicated with the hydrogen inlet of the methanol synthesis reactor 17 and the hydrogen inlet of the ammonia synthesis reactor 18.
Wherein, the main engine 7 and the auxiliary engine 8 of the ship can use liquid ammonia as fuel or methanol as fuel, and the liquid ammonia and the methanol are not simultaneously supplied to the main engine 7 and the auxiliary engine 8 of the ship, and one of the fuels is selected as a power source when the ship is sailing, so that the ship can be used for one preparation. The denitration device 15 is used for removing NO in the exhaust gas generated by the marine main engine 7 and the marine auxiliary engine 8 X Conversion to N by reaction 2 (ammonia and nitrogen oxides chemically react in the denitrification device 15 to convert nitrogen oxides into nitrogen and water), and the carbon capture device 16 is used for converting CO 2 And N 2 Separated from the tail gas, a methanol synthesis reactor 17 is used to separate the CO 2 And H is 2 Reaction to methanol, ammonia synthesis reactor 18 is used to separate N 2 And H is 2 The reaction generates ammonia gas, the first liquefying device 19 is used for liquefying the evaporated gas in the methanol into liquid methanol, the second liquefying device 20 is used for liquefying the ammonia gas into liquid ammonia, and the electrolytic hydrogen production device 25 is used for producing hydrogen gas by electrolyzing water to supply the hydrogen gas to the methanol synthesis reactor 17 and the ammonia synthesis reactor 18.
Specifically, the methanol-liquid ammonia dual-fuel ship supply system provided by the embodiment uses methanol and liquid ammonia as ship fuel, so that carbon emission of a ship can be effectively reduced; at the same time, NO in the tail gas of the ship main engine 7 and the ship auxiliary engine 8 is removed by the denitration device 15 X Conversion to N 2 The CO is then separated out by the carbon capture device 16 2 And N 2 ，CO 2 And N 2 Respectively enter a methanol synthesis reactor 17 and an ammonia synthesis reactor 18 to react to generate methanol and ammonia, and then are respectively liquefied by a first liquefying device 19 and a second liquefying device 20 and then are returned to the methanol storage tank 9 and the liquid ammonia storage tank 1, so that the regeneration of energy is realized, the carbon emission is further reduced, and the low-carbon or even carbon-free emission is realized. Therefore, the system has the advantages of low carbon, energy conservation and environmental protection.
As shown in fig. 1, as an embodiment, the methanol-liquid ammonia dual-fuel ship supply system further includes a BOG buffer tank 33, an ammonia tank 34, and a water tank 35, wherein a BOG outlet of the liquid ammonia tank 1 is communicated with an inlet of the BOG buffer tank 33, an outlet of the BOG buffer tank 33 is communicated with an ammonia inlet of the ammonia tank 34, an outlet of the water tank 35 is communicated with an inlet of the ammonia tank 34, and an ammonia outlet of the ammonia tank 34 is communicated with an ammonia inlet of the denitration device 15.
Specifically, after the evaporation gas (BOG) generated after the evaporation of the liquid ammonia in the liquid ammonia storage tank 1 enters the BOG buffer tank 33, the vaporized gas (BOG) enters the ammonia water tank 34 to be synthesized into ammonia water, the ammonia water in the ammonia water tank 34 is the main raw material for denitration, and after the ammonia water in the ammonia water tank 34 enters the denitration device 15, NO in the tail gas generated in the denitration device 15 and the ship main engine 7 and the ship auxiliary engine 8 X Reaction to produce N 2 . When the amount of water in the ammonia tank 34 is insufficient, the water in the water tank 35 can be replenished through the water tank 35, and the water in the water tank 35 can be replenished by seawater through a seawater desalination technology.
As shown in fig. 1, as an embodiment, the methanol-liquid ammonia dual-fuel ship supply system further includes a branch pipe 36, one end of the branch pipe 36 is connected to a pipe between the outlet of the ammonia synthesis reactor 18 and the inlet of the second liquefying device 20, and the other end of the branch pipe 36 is connected to the inlet of the ammonia tank 34.
Specifically, in the present embodiment, the branch pipe 36 is connected to a pipe between the outlet of the water tank 35 and the inlet of the ammonia tank 34, that is, the branch pipe 36 is connected to the ammonia tank 34 through a pipe between the outlet of the water tank 35 and the inlet of the ammonia tank 34. When the content of the evaporated gas in the liquid ammonia tank 1 is insufficient, ammonia gas generated by the reaction in the ammonia synthesis reactor 18 supplies ammonia gas to the ammonia tank 34.
As shown in fig. 1, as an embodiment, the methanol-liquid ammonia dual-fuel ship supply system further comprises a pure water machine 27, a pure water buffer tank 28 and a water pump 29, wherein an inlet of the pure water machine 27 is communicated with a water tank 35, an outlet of the pure water machine 27 is communicated with an inlet of the pure water buffer tank 28, an outlet of the pure water buffer tank 28 is communicated with an inlet of the water pump 29, an outlet of the water pump 29 is communicated with a pure water inlet of the electrolytic hydrogen production device 25, an oxygen/pure water outlet of the electrolytic hydrogen production device 25 is communicated with an inlet of the pure water buffer tank 28, and an oxygen outlet of the pure water buffer tank 28 is simultaneously communicated with an oxygen inlet of the ship host 7 and an oxygen inlet of the ship auxiliary machine 8.
Specifically, the pure water buffer tank 28 is used for storing pure water, the pure water in the pure water buffer tank 28 is pumped to the electrolytic hydrogen production device 25 through the water pump 29, the electrolytic hydrogen production device 25 generates hydrogen and oxygen through the electrolytic pure water, the generated hydrogen is supplied to the methanol synthesis reactor 17 and the ammonia synthesis reactor 18, the generated oxygen and unreacted pure water are returned to the pure water buffer tank 28, wherein the pure water is pumped to the electrolytic hydrogen production device 25 again through the water pump 29 for electrolytic reaction, and the oxygen is supplied to the ship host machine 7 and the ship auxiliary machine 8 at a certain flow rate and pressure after being separated from the pure water buffer tank 28, so that the ship host machine 7 and the ship auxiliary machine 8 are subjected to oxygen-enriched combustion, the generation of soot is reduced, the combustion efficiency of the engine is improved, and the output power is increased. The water purifier 27 is used for filtering, adsorbing, reverse osmosis and the like water to generate pure water, when the pure water in the pure water buffer tank 28 is insufficient, the pure water is supplemented by the water purifier 27, and the water source of the water purifier 27 can come from the water tank 35.
As shown in fig. 1, as an embodiment, the methanol-liquid ammonia dual-fuel ship supply system further includes a first heat exchanger 5, a second heat exchanger 13, and a third heat exchanger 30, wherein the first heat exchanger 5 is disposed on a line between an outlet of the first high-pressure pump 4 and an inlet of the second liquid ammonia buffer tank 6, the second heat exchanger 13 is disposed on a line between an outlet of the second high-pressure pump 12 and an inlet of the second methanol buffer tank 14, and the third heat exchanger 30 is disposed on a line between an oxygen/pure water outlet of the electrolytic hydrogen production device 25 and an inlet of the pure water buffer tank 28;
the liquid ammonia inlet of the first heat exchanger 5 is communicated with the outlet of the first high-pressure pump 4, and the liquid ammonia outlet of the first heat exchanger 5 is communicated with the inlet of the second liquid ammonia buffer tank 6; the methanol inlet of the second heat exchanger 13 is communicated with the outlet of the second high-pressure pump 12, and the methanol outlet of the second heat exchanger 13 is communicated with the inlet of the second methanol buffer tank 14; the oxygen/pure water inlet of the third heat exchanger 30 is communicated with the oxygen/pure water outlet of the electrolytic hydrogen production device 25, and the oxygen/pure water outlet of the third heat exchanger 30 is communicated with the inlet of the pure water buffer tank 28; the heat exchange medium outlet of the third heat exchanger 30 is simultaneously communicated with the heat exchange medium inlet of the first heat exchanger 5 and the heat exchange medium inlet of the second heat exchanger 13, and the heat exchange medium outlet of the first heat exchanger 5 and the heat exchange medium outlet of the second heat exchanger 13 are both communicated with the heat exchange medium inlet of the third heat exchanger 30.
Specifically, the electrolytic hydrogen production device 25 generates heat during the electrolytic operation, so that oxygen generated by the electrolysis and unreacted pure water have a high temperature; during operation, oxygen generated by the electrolytic hydrogen production device 25 and unreacted pure water exchange heat with a heat exchange medium (the heat exchange medium can be a water glycol solution) in the third heat exchanger 30, so that the heat exchange medium is heated, waste heat generated by the electrolytic hydrogen production device 25 can be utilized, the unreacted pure water is cooled, and the cooled oxygen and pure water enter the pure water buffer tank 28; the heat exchange medium is heated in the third heat exchanger 30 and then enters the first heat exchanger 5 and the second heat exchanger 13, so that the temperature of the liquid ammonia and the methanol is raised. By the mode, the waste heat generated by the electrolytic hydrogen production device 25 can be utilized to heat the liquid ammonia and the methanol fuel, so that energy consumption is saved.
As one embodiment, electrolytic hydrogen production device 25 may be an alkaline water electrolysis (AE) hydrogen production device or a proton exchange membrane water electrolysis (PEM) hydrogen production device or a solid oxide water electrolysis (SOE) hydrogen production device. In this embodiment, the electrolytic hydrogen production device 25 is a proton exchange membrane water electrolysis (PEM) hydrogen production device.
As shown in fig. 1, as an embodiment, the methanol-liquid ammonia dual-fuel ship supply system further includes a renewable energy power generation device 31 and an energy storage and power supply device 32, wherein the renewable energy power generation device 31 is electrically connected to the energy storage and power supply device 32, and the energy storage and power supply device 32 is electrically connected to the electrolytic hydrogen production device 25, the denitration device 15, the carbon capture device 16, the methanol synthesis reactor 17, the ammonia synthesis reactor 18, the first liquefaction device 19, the second liquefaction device 20, the first transfer pump 23 and the second transfer pump 24.
As an embodiment, the renewable energy power generation device 31 may be a combination of one or more of a wind power generation device, a solar power generation device, and a biomass power generation device.
Specifically, the renewable energy power generation device 31 is used for generating electric energy, and the electric energy generated by the renewable energy power generation device 31 is stored in the energy storage and power supply device 32, and the electric energy is provided to the electrolytic hydrogen production device 25 and related equipment on a process route for preparing liquid ammonia and methanol through the energy storage and power supply device 32. The renewable energy (wind energy, solar energy and biomass energy) is utilized to generate power for tail gas treatment and energy regeneration related equipment, so that wind and light abandoning can be avoided, the problem of shortage of fossil energy is relieved, and the sailing cost of the ship is saved.
As shown in fig. 1, as an embodiment, the methanol-liquid ammonia dual-fuel ship supply system further includes a ventilation mast 37, and an exhaust gas outlet of the carbon capture device 16 is communicated with the ventilation mast 37, and residual gas (CO 2 And N 2 Outside air) may be vented through the gas permeable mast 37.
As shown in fig. 1, as an embodiment, a first pressure gauge 41 and a first temperature gauge 51 are provided on the liquid ammonia storage tank 1, a second pressure gauge 42 and a second temperature gauge 52 are provided on the methanol storage tank 9, a third pressure gauge 43 and a third temperature gauge 53 are provided on a heat exchange medium outlet line of the first heat exchanger 5, a fourth pressure gauge 44 and a fourth temperature gauge 54 are provided on a liquid ammonia outlet line of the first heat exchanger 5, a fifth pressure gauge 45 and a fifth temperature gauge 55 are provided on a heat exchange medium outlet line of the second heat exchanger 13, a sixth pressure gauge 46 and a sixth temperature gauge 56 are provided on a methanol outlet line of the second heat exchanger 13, a seventh pressure gauge 47 is provided on the second liquid ammonia buffer tank 6, an eighth pressure gauge 48 is provided on the second methanol buffer tank 14, a ninth pressure gauge 49 is provided on the pure water buffer tank 28, and a tenth pressure gauge 50 is provided on the hydrogen buffer tank 26. The pressure gauges are used for measuring the pressure of the fluid in the storage tanks, the buffer tanks and the pipelines, and the temperature gauges are used for measuring the temperature of the fluid in the storage tanks, the buffer tanks and the pipelines.
As shown in fig. 1, as an embodiment, each pipeline is further provided with an associated control valve (not shown in the drawings), which is not described herein.
The working flow of the methanol-liquid ammonia dual-fuel ship supply system in the embodiment is as follows:
1. the liquid ammonia in the liquid ammonia storage tank 1 is pumped to a first liquid ammonia buffer tank 3 through a first low-pressure pump 2, is pressurized through a first high-pressure pump 4 and then is pumped to a first heat exchanger 5 for heating, and the pressure and the temperature of the liquid ammonia after heat exchange are monitored through a fourth pressure gauge 44 and a fourth thermometer 54; the heat exchanged liquid ammonia enters the second liquid ammonia buffer tank 6, and is supplied to the ship main engine 7 and the ship auxiliary engine 8 at specific pressures and temperatures respectively. The methanol in the methanol storage tank 9 is pumped to the first methanol buffer tank 11 through the second low-pressure pump 10, is pressurized through the second high-pressure pump 12 and then is pumped to the second heat exchanger 13 for heating, and the pressure and the temperature of the methanol after heat exchange are monitored through the sixth pressure gauge 46 and the sixth temperature gauge 56; the methanol after heat exchange enters the second methanol buffer tank 14, and is supplied to the marine main engine 7 and the marine auxiliary engine 8 at specific pressures and temperatures, respectively. Wherein, liquid ammonia and methanol are not simultaneously supplied to the ship main engine 7 and the ship auxiliary engine 8, and one fuel is selected as a power source when the ship is sailing, so that the ship is ready for use.
2. The tail gas generated by the ship main engine 7 and the ship auxiliary engine 8 firstly enters the denitration device 15, and NO in the tail gas is removed in the denitration device 15 X Conversion to N by reaction 2 The tail gas then reenters the carbon capture device 16, thereby converting the CO 2 And N 2 Separating from the tail gas; separated CO 2 After entering the methanol synthesis reactor 17, the mixture is reacted with H 2 Reaction to form methanol, and separating N 2 After entering the ammonia synthesis reactor 18, and H 2 The reaction produces ammonia gas, and the remaining gas is vented through a gas permeable mast 37. The methanol generated in the methanol synthesis reactor 17 enters a first liquefying device 19 to be liquefied to generate liquid methanol, then enters a third methanol buffer tank 21, and is pumped into a methanol storage tank 9 through a first conveying pump 23; the ammonia gas generated in the ammonia synthesis reactor 18 enters the second liquefying device 20 to be liquefied, liquid ammonia is generated, then enters the third liquid ammonia buffer tank 22, and is pumped into the liquid ammonia storage tank 1 through the second delivery pump 24. The two process routes for preparing methanol and liquid ammonia can be simultaneously carried out, or the process route for preparing liquid ammonia can be closed (namely, the process route for preparing methanol is only opened), and N is added 2 Together with the residual gases, are discharged through the gas permeable mast 37.
3. Liquid ammoniaAfter the evaporation gas (BOG) generated after the volatilization of the liquid ammonia in the storage tank 1 enters the BOG buffer tank 33, the evaporation gas (BOG) enters the ammonia water tank 34 to be synthesized into ammonia water which is the main raw material for denitration, and the ammonia water in the ammonia water tank 34 enters the denitration device 15, and then NO in the tail gas generated by the denitration device 15, the ship host machine 7 and the ship auxiliary machine 8 X Reaction to produce N 2 . When the amount of water in the ammonia tank 34 is insufficient, the water in the water tank 35 can be replenished through the water tank 35, and the water in the water tank 35 can be replenished by seawater through a seawater desalination technology. When the content of the evaporated gas in the liquid ammonia tank 1 is insufficient, ammonia gas generated by the reaction in the ammonia synthesis reactor 18 can be used to supply ammonia gas to the ammonia tank 34 through the branch line 36.
4. The electrolytic hydrogen production device 25 generates hydrogen and oxygen by electrolyzing pure water, the generated hydrogen is supplied to the methanol synthesis reactor 17 and the ammonia synthesis reactor 18, the generated oxygen and unreacted pure water exchange heat with a heat exchange medium in the third heat exchanger 30, so that the heat exchange medium is heated, waste heat generated by the electrolytic hydrogen production device 25 can be utilized, the unreacted pure water is cooled, the cooled oxygen and pure water enter the pure water buffer tank 28, the cooled pure water is pumped into the electrolytic hydrogen production device 25 again through the water pump 29 for electrolytic reaction, and the oxygen is supplied to the ship host machine 7 and the ship auxiliary machine 8 at a certain flow rate and pressure after being separated from the pure water buffer tank 28, so that the ship host machine 7 and the ship auxiliary machine 8 are burnt in an oxygen-enriched mode, and the combustion efficiency of fuel is improved. The heat exchange medium is heated in the third heat exchanger 30 and then enters the first heat exchanger 5 and the second heat exchanger 13, so that the temperature of the liquid ammonia and the methanol is raised. When the pure water in the pure water buffer tank 28 is insufficient, the pure water is prepared and supplemented by the pure water machine 27, the water source of the pure water machine 27 can come from the water tank 35, and the water in the water tank 35 can be supplemented by seawater through a seawater desalination technology.
The methanol-liquid ammonia dual-fuel ship supply system provided by the embodiment of the invention has the advantages that:
1. the system uses methanol and liquid ammonia as ship fuel, so that carbon emission of ships can be effectively reduced; at the same time, NO in the tail gas of the ship main engine 7 and the ship auxiliary engine 8 is removed by the denitration device 15 X Conversion to N 2 Then go throughCO separation by the carbon monoxide trap 16 2 And N 2 ，CO 2 And N 2 Respectively enter a methanol synthesis reactor 17 and an ammonia synthesis reactor 18 to react to generate methanol and ammonia, and then are respectively liquefied by a first liquefying device 19 and a second liquefying device 20 and then are returned to the methanol storage tank 9 and the liquid ammonia storage tank 1, so that the regeneration of energy is realized, the carbon emission is further reduced, and the low-carbon or even carbon-free emission is realized. Therefore, the system has the advantages of low carbon, energy conservation and environmental protection.
2. The waste heat generated during the operation of the electrolytic hydrogen production device 25 is utilized to heat the liquid ammonia and the methanol, thereby saving energy consumption.
3. Oxygen generated by electrolysis of the electrolytic hydrogen production device 25 is supplied to the ship main engine 7 and the ship auxiliary engine 8, so that the ship main engine 7 and the ship auxiliary engine 8 are subjected to oxygen-enriched combustion, generation of soot is reduced, combustion efficiency of the engine is improved, and output power is increased.
4. Renewable energy (wind energy, solar energy and biomass energy) is utilized to generate power for tail gas treatment and energy regeneration related equipment, so that the problems of wind abandoning and light abandoning, shortage of fossil energy can be solved, and the sailing cost of ships can be saved.
The foregoing is merely illustrative of the present invention, and the present invention is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (10)

1. The methanol-liquid ammonia dual-fuel ship supply system is characterized by comprising a liquid ammonia storage tank (1), a first liquid ammonia buffer tank (3), a first high-pressure pump (4), a second liquid ammonia buffer tank (6), a methanol storage tank (9), a first methanol buffer tank (11), a second high-pressure pump (12), a second methanol buffer tank (14), a ship main engine (7), a ship auxiliary engine (8), a denitration device (15), a carbon capture device (16), a methanol synthesis reactor (17), an ammonia synthesis reactor (18), a first liquefaction device (19), a second liquefaction device (20), a third liquid ammonia buffer tank (21), a third liquid ammonia buffer tank (22), a first conveying pump (23), a second conveying pump (24), an electrolytic hydrogen production device (25) and a hydrogen buffer tank (26);
the device is characterized in that a first low-pressure pump (2) is arranged in the liquid ammonia storage tank (1), an outlet of the first low-pressure pump (2) is communicated with an inlet of the first liquid ammonia buffer tank (3), an outlet of the first liquid ammonia buffer tank (3) is communicated with an inlet of the first high-pressure pump (4), an outlet of the first high-pressure pump (4) is communicated with an inlet of the second liquid ammonia buffer tank (6), and an outlet of the second liquid ammonia buffer tank (6) is simultaneously communicated with a liquid ammonia inlet of the marine main engine (7) and a liquid ammonia inlet of the marine auxiliary engine (8);
a second low-pressure pump (10) is arranged in the methanol storage tank (9), the outlet of the second low-pressure pump (10) is communicated with the inlet of the first methanol buffer tank (11), the outlet of the first methanol buffer tank (11) is communicated with the inlet of the second high-pressure pump (12), the outlet of the second high-pressure pump (12) is communicated with the inlet of the second methanol buffer tank (14), and the outlet of the second methanol buffer tank (14) is simultaneously communicated with the methanol inlet of the marine main engine (7) and the methanol inlet of the marine auxiliary engine (8);
the tail gas outlet of the ship main engine (7) and the tail gas outlet of the ship auxiliary engine (8) are communicated with the exhaust gas inlet of the denitration device (15), the outlet of the denitration device (15) is communicated with the inlet of the carbon capture device (16), the carbon dioxide outlet of the carbon capture device (16) is communicated with the carbon dioxide inlet of the methanol synthesis reactor (17), the outlet of the methanol synthesis reactor (17) is communicated with the inlet of the first liquefying device (19), the outlet of the first liquefying device (19) is communicated with the inlet of the third alcohol buffer tank (21), the outlet of the third alcohol buffer tank (21) is communicated with the inlet of the first conveying pump (23), and the outlet of the first conveying pump (23) is communicated with the inlet of the methanol storage tank (9); the nitrogen outlet of the carbon trapping device (16) is communicated with the nitrogen inlet of the ammonia synthesis reactor (18), the outlet of the ammonia synthesis reactor (18) is communicated with the inlet of the second liquefying device (20), the outlet of the second liquefying device (20) is communicated with the inlet of the third liquid ammonia buffer tank (22), the outlet of the third liquid ammonia buffer tank (22) is communicated with the inlet of the second delivery pump (24), and the outlet of the second delivery pump (24) is communicated with the inlet of the liquid ammonia storage tank (1); the hydrogen outlet of the electrolytic hydrogen production device (25) is communicated with the inlet of the hydrogen buffer tank (26), and the outlet of the hydrogen buffer tank (26) is simultaneously communicated with the hydrogen inlet of the methanol synthesis reactor (17) and the hydrogen inlet of the ammonia synthesis reactor (18).
2. The methanol-liquid ammonia dual-fuel ship supply system as claimed in claim 1, further comprising a water purifier (27), a pure water buffer tank (28) and a water pump (29), wherein an outlet of the water purifier (27) is communicated with an inlet of the pure water buffer tank (28), an outlet of the pure water buffer tank (28) is communicated with an inlet of the water pump (29), an outlet of the water pump (29) is communicated with a pure water inlet of the electrolytic hydrogen production device (25), an oxygen/pure water outlet of the electrolytic hydrogen production device (25) is communicated with an inlet of the pure water buffer tank (28), and an oxygen outlet of the pure water buffer tank (28) is simultaneously communicated with an oxygen inlet of the ship host (7) and an oxygen inlet of the ship auxiliary machine (8).
3. A methanol-liquid ammonia dual fuel vessel supply system as claimed in claim 2, further comprising a first heat exchanger (5), a second heat exchanger (13) and a third heat exchanger (30), the first heat exchanger (5) being arranged on a line between an outlet of the first high pressure pump (4) and an inlet of the second liquid ammonia buffer tank (6), the second heat exchanger (13) being arranged on a line between an outlet of the second high pressure pump (12) and an inlet of the second methanol buffer tank (14), the third heat exchanger (30) being arranged on a line between an oxygen/pure water outlet of the electrolytic hydrogen production device (25) and an inlet of the pure water buffer tank (28);
the liquid ammonia inlet of the first heat exchanger (5) is communicated with the outlet of the first high-pressure pump (4), and the liquid ammonia outlet of the first heat exchanger (5) is communicated with the inlet of the second liquid ammonia buffer tank (6); the methanol inlet of the second heat exchanger (13) is communicated with the outlet of the second high-pressure pump (12), and the methanol outlet of the second heat exchanger (13) is communicated with the inlet of the second methanol buffer tank (14); an oxygen/pure water inlet of the third heat exchanger (30) is communicated with an oxygen/pure water outlet of the electrolytic hydrogen production device (25), and an oxygen/pure water outlet of the third heat exchanger (30) is communicated with an inlet of the pure water buffer tank (28); the heat exchange medium outlet of the third heat exchanger (30) is simultaneously communicated with the heat exchange medium inlet of the first heat exchanger (5) and the heat exchange medium inlet of the second heat exchanger (13), and the heat exchange medium outlet of the first heat exchanger (5) and the heat exchange medium outlet of the second heat exchanger (13) are both communicated with the heat exchange medium inlet of the third heat exchanger (30).
4. The methanol-liquid ammonia dual-fuel vessel supply system according to claim 1, further comprising a renewable energy power generation device (31) and an energy storage power supply device (32), wherein the renewable energy power generation device (31) is electrically connected with the energy storage power supply device (32), and wherein the energy storage power supply device (32) is electrically connected with the electrolytic hydrogen production device (25), the denitration device (15), the carbon capture device (16), the methanol synthesis reactor (17), the ammonia synthesis reactor (18), the first liquefaction device (19), the second liquefaction device (20), the first transfer pump (23) and the second transfer pump (24) simultaneously.
5. A methanol-liquid ammonia dual fuel vessel supply system as in claim 4, wherein the renewable energy power generation device (31) is a combination of one or more of a wind power generation device, a solar power generation device, and a biomass power generation device.
6. The methanol-liquid ammonia dual-fuel ship supply system according to claim 1, further comprising a BOG buffer tank (33), an ammonia tank (34) and a water tank (35), wherein a BOG outlet of the liquid ammonia tank (1) is communicated with an inlet of the BOG buffer tank (33), an outlet of the BOG buffer tank (33) is communicated with an ammonia inlet of the ammonia tank (34), an outlet of the water tank (35) is communicated with an inlet of the ammonia tank (34), and an ammonia outlet of the ammonia tank (34) is communicated with an ammonia inlet of the denitration device (15).
7. A methanol-liquid ammonia dual fuel vessel supply system as claimed in claim 6, characterized in that the methanol-liquid ammonia dual fuel vessel supply system further comprises a branch line (36), one end of the branch line (36) being connected to a line between the outlet of the ammonia synthesis reactor (18) and the inlet of the second liquefying device (20), the other end of the branch line (36) being connected to the inlet of the ammonia tank (34).
8. A methanol-liquid ammonia dual fuel vessel supply system as claimed in claim 1, characterized in that the methanol-liquid ammonia dual fuel vessel supply system further comprises a gas permeable mast (37), the exhaust outlet of the carbon capture device (16) being in communication with the gas permeable mast (37).
9. The methanol-liquid ammonia dual fuel ship supply system as claimed in claim 1, characterized in that the electrolytic hydrogen production device (25) is an alkaline water electrolytic hydrogen production device or a proton exchange membrane water electrolytic hydrogen production device or a solid oxide water electrolytic hydrogen production device.
10. A vessel comprising a methanol-liquid ammonia dual fuel vessel supply system as claimed in any one of claims 1 to 9.
CN202310241911.2A 2023-03-13 2023-03-13 Methanol-liquid ammonia dual-fuel ship supply system and ship Pending CN116255285A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310241911.2A CN116255285A (en) 2023-03-13 2023-03-13 Methanol-liquid ammonia dual-fuel ship supply system and ship

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310241911.2A CN116255285A (en) 2023-03-13 2023-03-13 Methanol-liquid ammonia dual-fuel ship supply system and ship

Publications (1)

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CN116255285A true CN116255285A (en) 2023-06-13

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Application Number Title Priority Date Filing Date
CN202310241911.2A Pending CN116255285A (en) 2023-03-13 2023-03-13 Methanol-liquid ammonia dual-fuel ship supply system and ship

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Country Link
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