CN116498463A - Fuel preparation and supply integrated system of ammonia fuel power ship - Google Patents
Fuel preparation and supply integrated system of ammonia fuel power ship Download PDFInfo
- Publication number
- CN116498463A CN116498463A CN202310433359.7A CN202310433359A CN116498463A CN 116498463 A CN116498463 A CN 116498463A CN 202310433359 A CN202310433359 A CN 202310433359A CN 116498463 A CN116498463 A CN 116498463A
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- China
- Prior art keywords
- liquid ammonia
- fuel
- ammonia
- water
- hydrogen
- 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.)
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- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 title claims abstract description 79
- 239000000446 fuel Substances 0.000 title claims abstract description 51
- 238000002360 preparation method Methods 0.000 title claims abstract description 17
- 229910021529 ammonia Inorganic materials 0.000 title claims abstract description 14
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 36
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 34
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 26
- 239000001257 hydrogen Substances 0.000 claims abstract description 26
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 26
- 239000004202 carbamide Substances 0.000 claims abstract description 20
- 238000003860 storage Methods 0.000 claims abstract description 20
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims abstract description 18
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 18
- 238000007670 refining Methods 0.000 claims abstract description 18
- 238000004519 manufacturing process Methods 0.000 claims abstract description 12
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 7
- 238000005868 electrolysis reaction Methods 0.000 claims abstract description 7
- 239000002912 waste gas Substances 0.000 claims description 17
- 239000002994 raw material Substances 0.000 claims description 8
- 230000003197 catalytic effect Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 230000003647 oxidation Effects 0.000 claims description 3
- 238000007254 oxidation reaction Methods 0.000 claims description 3
- 239000002918 waste heat Substances 0.000 claims description 3
- 229910052799 carbon Inorganic materials 0.000 abstract description 8
- 239000007789 gas Substances 0.000 abstract description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 3
- 125000004122 cyclic group Chemical group 0.000 abstract description 2
- 230000000694 effects Effects 0.000 abstract description 2
- 238000010531 catalytic reduction reaction Methods 0.000 abstract 1
- 238000006722 reduction reaction Methods 0.000 abstract 1
- 238000004134 energy conservation Methods 0.000 description 2
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonium chloride Substances [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 1
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 1
- 235000011114 ammonium hydroxide Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000002803 fossil fuel Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 125000004433 nitrogen atom Chemical group N* 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000000192 social effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
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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
- 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
-
- 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
- B01D53/86—Catalytic processes
- B01D53/8621—Removing nitrogen compounds
- B01D53/8625—Nitrogen oxides
- B01D53/8631—Processes characterised by a specific device
-
- 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
- B01D53/86—Catalytic processes
- B01D53/88—Handling or mounting catalysts
- B01D53/885—Devices in general for catalytic purification of waste gases
-
- 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
-
- 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
- C25B9/00—Cells or assemblies of cells; Constructional parts of cells; Assemblies of constructional parts, e.g. electrode-diaphragm assemblies; Process-related cell features
- C25B9/60—Constructional parts of cells
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/0807—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents
- F01N3/0828—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents characterised by the absorbed or adsorbed substances
- F01N3/0842—Nitrogen oxides
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2590/00—Exhaust or silencing apparatus adapted to particular use, e.g. for military applications, airplanes, submarines
- F01N2590/02—Exhaust or silencing apparatus adapted to particular use, e.g. for military applications, airplanes, submarines for marine vessels or naval applications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2610/00—Adding substances to exhaust gases
- F01N2610/02—Adding substances to exhaust gases the substance being ammonia or urea
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Environmental & Geological Engineering (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- General Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Combustion & Propulsion (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Treating Waste Gases (AREA)
Abstract
An integrated fuel preparation and supply system for an ammonia fuel powered vessel, wherein hydrogen is prepared by electrolysis of water, liquid ammonia is prepared by combining nitrogen extracted from exhaust gas, one part of the liquid ammonia is used as fuel for a host machine, and the other part of the liquid ammonia is used as a reducing agent for treating NOx in the exhaust gas generated by the host machine; the fuel preparation and supply integrated system comprises a ship power station, an electrolyzed water hydrogen production device, an air separator, a liquid ammonia refining tower, a purifier, a liquid ammonia storage cabin, an evaporator, a fuel supply unit, a urea generator, a urea storage tank, an SCR (selective catalytic reduction) reactor, a boiler, a clean water cabin and an incinerator. The invention is used for realizing the application of the zero-carbon fuel on ship power, achieving the effects of zero emission of carbon, cyclic utilization of energy and pollution emission reduction, and maximally improving the utilization rate of the energy and the economic benefit of transportation.
Description
Technical Field
The invention relates to a fuel supply system of a marine engine, in particular to a fuel preparation and supply integrated system of an ammonia fuel power ship, and belongs to the technical field of ship energy conservation and emission reduction.
Background
With the increasing demands of energy conservation and emission reduction of ships, the zero-carbon fuel is gradually coming into the field of view of people, and the ammonia fuel is further exerted as the most popular zero-carbon fuel in the current discussion. The liquid ammonia has relatively low use cost due to simple preparation process.
Ammonia, because of the nitrogen atoms in its molecular formula, generates a large amount of NOx when used as a fuel for marine main engines, which is not allowed under current regulations, and ammonia solution is usually reducing, so ammonia is usually used to reduce NOx in the main engine exhaust gas, so that the main engine meets the IMO regulations.
Disclosure of Invention
The invention aims to solve the technical problem of providing a fuel preparation and supply integrated system of an ammonia fuel power ship, which is used for the ship to solve the problems of preparation and supply of ammonia fuel and chemical port-by-port filling and solve the problem of host waste gas emission.
The technical scheme adopted for solving the technical problems is as follows:
an integrated fuel preparation and supply system of an ammonia fuel powered ship is connected with a host machine and is characterized in that hydrogen is prepared by electrolysis of water, liquid ammonia is prepared by combining nitrogen extracted from waste gas, one part of the liquid ammonia is used as fuel for the host machine, and the other part of the liquid ammonia is used as a reducing agent for treating NOx in the waste gas generated by the host machine.
Further, the fuel preparation and supply integrated system comprises a ship power station, an electrolyzed water hydrogen production device, an air separator, a liquid ammonia refining tower, a purifier, a liquid ammonia storage cabin, an evaporator, a fuel supply unit, a urea generator, a urea storage tank, an SCR reactor, a boiler, a clean water cabin and an incinerator;
the ship power station supplies power to the water electrolysis hydrogen production device, the air separator, the liquid ammonia refining tower, the purifier and the evaporator;
the electrolytic water hydrogen production device is used for preparing hydrogen by electrolyzing water from the clean water cabin, and simultaneously conveying the hydrogen to the liquid ammonia refining tower, the air separator is used for separating waste gas from the incinerator to obtain nitrogen and conveying the nitrogen to the liquid ammonia refining tower, the liquid ammonia refining tower is used for preparing liquid ammonia by combining the nitrogen and the hydrogen together as raw materials, and the liquid ammonia is purified by the purifier and then conveyed to the liquid ammonia storage cabin;
the liquid ammonia output by the liquid ammonia storage cabin is divided into two paths, one path is evaporated and gasified by the evaporator and then is conveyed to the fuel supply unit, and then enters the host machine to be used as fuel, the other path is conveyed to the urea generator together with water from the clean water cabin, is stored in the urea storage tank after being prepared into urea solution, and is finally conveyed to the SCR reactor to be used as a reducing agent of NOx in the host machine waste gas in the catalytic oxidation process;
after the NOx in the host waste gas is catalyzed and reduced in the SCR reactor, the NOx is subjected to low-temperature incineration by utilizing waste heat and the incinerator sequentially through the boiler, and finally is conveyed to the air separator to be used as a raw material for preparing nitrogen.
Further, the electric energy of the ship power station is from an auxiliary generator, a shaft generator, an on-board wind power generator or a solar panel.
Compared with the prior art that ships use traditional fossil fuels, the invention has the following beneficial effects:
1) According to the invention, through water electrolysis to prepare hydrogen and extracting nitrogen in waste gas as raw materials and preparing liquid ammonia as fuel of a host machine, the application of the zero-carbon fuel on ship power is realized, and the positive economic and social effects of zero carbon emission, pollution reduction and environmental protection are obtained.
2) In the fuel preparation and supply integrated system, electric energy can come from green energy sources such as wind power or solar energy, and the waste gas generated by the host machine is used for extracting nitrogen raw materials for preparing liquid ammonia again, so that the recycling of the energy sources is realized to the greatest extent, the pollution emission is reduced, and the utilization rate of the energy sources is greatly improved.
3) The invention can be independently realized on the ship, saves the storage space of fuel, reduces the dependence on berthing ground supply and improves the economic benefit of transportation.
Drawings
Fig. 1 is a schematic diagram of a system of the present invention.
In the drawing the view of the figure,
101-ship power station, 102-electrolytic water hydrogen production device, 103-air separator, 104-liquid ammonia refining tower, 105-purifier, 106-liquid ammonia storage cabin, 107-evaporator, 108-fuel supply unit, 109-host, 110-urea generator, 111-urea storage tank, 112-SCR reactor, 113-boiler, 114-clean water cabin, 115-incinerator.
Detailed Description
The invention is further described by the following examples, which are given by way of illustration only and are not limiting of the scope of the invention.
The invention is used for preparing and supplying the fuel of the ship taking the ammonia fuel as the power, realizes the application of the zero-carbon fuel on the power of the ship, achieves the effects of zero emission of carbon, cyclic utilization of energy and pollution emission reduction, and improves the utilization rate of the energy and the economic benefit of transportation to the greatest extent.
The fuel preparation and supply integrated system of the ammonia fuel power ship is connected with a host machine, hydrogen is prepared through electrolysis of water, liquid ammonia is prepared by combining nitrogen extracted from waste gas, one part of the liquid ammonia is used as fuel for the host machine, and the other part of the liquid ammonia is used as a reducing agent for treating NOx in the waste gas generated by the host machine.
Referring to fig. 1, the fuel preparation and supply integrated system includes a ship power plant 101, an electrolyzed water hydrogen production apparatus 102, an air separator 103, a liquid ammonia refining tower 104, a purifier 105, a liquid ammonia storage tank 106, an evaporator 107, a fuel supply unit 108, a urea generator 110, a urea storage tank 111, an SCR reactor 112, a boiler 113, a clean water tank 114, and an incinerator 115.
The ship power station 101 with multiple supply paths can utilize the electric energy generated by a conventional auxiliary engine generator or a shaft generator and also can utilize clean energy generated by a shipboard wind driven generator or a solar panel; the ship power station 101 supplies power to the electrolytic water hydrogen production device 102, the air separator 103, the liquid ammonia refining tower 104, the purifier 105 and the evaporator 107.
The electrolyzed water hydrogen production apparatus 102 produces hydrogen by electrolyzing water from the clean water tank 114 by using electric energy supplied from the ship power station 101, and then sends the hydrogen to the liquid ammonia refining tower 104; the air separator 103 separates the exhaust gas from the incinerator 115 to obtain nitrogen, and then sends the nitrogen to the liquid ammonia refining tower 104; the liquid ammonia refining tower 104 is connected to the electrolyzed water hydrogen production apparatus 102 and the air separator 103, and combines nitrogen and hydrogen together to prepare liquid ammonia as raw materials, and the liquid ammonia is purified by the purifier 105 and then is transferred to the liquid ammonia storage tank 106.
Liquid ammonia output from the outlet of the liquid ammonia storage tank 106 is divided into two paths: one path is evaporated and vaporized by the evaporator 107 and then sent to the host 109 through the fuel supply unit 108 to be used as fuel; the other path is sent to the urea generator 110 together with the water from the clean water tank 114 to prepare urea solution, and the prepared urea solution is stored in the urea storage tank 111 and finally sent to the SCR reactor 112 to be used as a reducing agent of NOx in the host exhaust gas in the catalytic oxidation process.
NOx in the exhaust gas produced by the host 109 is catalytically reduced to N by the SCR reactor 112 2 Waste gas waste heat is utilized by the boiler 113, finally, the waste gas is subjected to low-temperature incineration by the incinerator 115, sent to the air separator 103, subjected to low-temperature separation to obtain liquid nitrogen, and sent to the liquid ammonia refining tower 104 to be used as an ammonia production raw material.
The scope of protection claimed in the present invention is not limited to the embodiments described above, but also includes other variants and alternatives obvious to the present invention.
Claims (3)
1. An integrated fuel preparation and supply system of an ammonia fuel powered ship is connected with a host machine and is characterized in that hydrogen is prepared by electrolysis of water, liquid ammonia is prepared by combining nitrogen extracted from waste gas, one part of the liquid ammonia is used as fuel for the host machine, and the other part of the liquid ammonia is used as a reducing agent for treating NOx in the waste gas generated by the host machine.
2. The integrated fuel preparation and supply system for an ammonia-fueled ship according to claim 1, wherein the integrated fuel preparation and supply system comprises a ship power plant, an electrolyzed water hydrogen plant, an air separator, a liquid ammonia refining tower, a purifier, a liquid ammonia storage tank, an evaporator, a fuel supply unit, a urea generator, a urea storage tank, an SCR reactor, a boiler, a clean water tank, and an incinerator;
the ship power station supplies power to the water electrolysis hydrogen production device, the air separator, the liquid ammonia refining tower, the purifier and the evaporator;
the electrolytic water hydrogen production device is used for preparing hydrogen by electrolyzing water from the clean water cabin, and simultaneously conveying the hydrogen to the liquid ammonia refining tower, the air separator is used for separating waste gas from the incinerator to obtain nitrogen and conveying the nitrogen to the liquid ammonia refining tower, the liquid ammonia refining tower is used for preparing liquid ammonia by combining the nitrogen and the hydrogen together as raw materials, and the liquid ammonia is purified by the purifier and then conveyed to the liquid ammonia storage cabin;
the liquid ammonia output by the liquid ammonia storage cabin is divided into two paths, one path is evaporated and gasified by the evaporator and then is conveyed to the fuel supply unit, and then enters the host machine to be used as fuel, the other path is conveyed to the urea generator together with water from the clean water cabin, is stored in the urea storage tank after being prepared into urea solution, and is finally conveyed to the SCR reactor to be used as a reducing agent of NOx in the host machine waste gas in the catalytic oxidation process;
after the NOx in the host waste gas is catalyzed and reduced in the SCR reactor, the NOx is subjected to low-temperature incineration by utilizing waste heat and the incinerator sequentially through the boiler, and finally is conveyed to the air separator to be used as a raw material for preparing nitrogen.
3. The integrated fuel preparation and supply system of an ammonia-fueled power vessel according to claim 1, wherein the electric power of the vessel power plant is from an auxiliary generator, a shaft generator, an on-board wind power generator, or a solar panel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310433359.7A CN116498463A (en) | 2023-04-21 | 2023-04-21 | Fuel preparation and supply integrated system of ammonia fuel power ship |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310433359.7A CN116498463A (en) | 2023-04-21 | 2023-04-21 | Fuel preparation and supply integrated system of ammonia fuel power ship |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116498463A true CN116498463A (en) | 2023-07-28 |
Family
ID=87317649
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310433359.7A Pending CN116498463A (en) | 2023-04-21 | 2023-04-21 | Fuel preparation and supply integrated system of ammonia fuel power ship |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116498463A (en) |
-
2023
- 2023-04-21 CN CN202310433359.7A patent/CN116498463A/en active Pending
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