WO2024014349A1 - Fuel supply apparatus and combustion facility - Google Patents

Fuel supply apparatus and combustion facility Download PDF

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Publication number
WO2024014349A1
WO2024014349A1 PCT/JP2023/024707 JP2023024707W WO2024014349A1 WO 2024014349 A1 WO2024014349 A1 WO 2024014349A1 JP 2023024707 W JP2023024707 W JP 2023024707W WO 2024014349 A1 WO2024014349 A1 WO 2024014349A1
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Prior art keywords
hydrogen
fuel
line
regeneration gas
dehumidifier
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PCT/JP2023/024707
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French (fr)
Japanese (ja)
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悟 松尾
憲 田村
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三菱重工業株式会社
三菱パワー株式会社
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Publication of WO2024014349A1 publication Critical patent/WO2024014349A1/en

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    • 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
    • B01D53/26—Drying gases or vapours
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
    • F02C3/00—Gas-turbine plants characterised by the use of combustion products as the working fluid
    • F02C3/20—Gas-turbine plants characterised by the use of combustion products as the working fluid using a special fuel, oxidant, or dilution fluid to generate the combustion products
    • F02C3/22—Gas-turbine plants characterised by the use of combustion products as the working fluid using a special fuel, oxidant, or dilution fluid to generate the combustion products the fuel or oxidant being gaseous at standard temperature and pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
    • F02C7/00—Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
    • F02C7/22—Fuel supply systems
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23K—FEEDING FUEL TO COMBUSTION APPARATUS
    • F23K5/00—Feeding or distributing other fuel to combustion apparatus
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23R—GENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGH VELOCITY, e.g. GAS-TURBINE COMBUSTION CHAMBERS
    • F23R3/00—Continuous combustion chambers using liquid or gaseous fuel
    • F23R3/28—Continuous combustion chambers using liquid or gaseous fuel characterised by the fuel supply

Definitions

  • the present disclosure relates to fuel supply devices and combustion equipment.
  • This application claims priority based on Japanese Patent Application No. 2022-112110 filed with the Japan Patent Office on July 13, 2022, the contents of which are incorporated herein.
  • a water electrolysis device is sometimes used to produce hydrogen. Hydrogen generated in the electrolytic cell of a water electrolysis device is discharged from the electrolytic cell along with moisture. For this reason, the hydrogen discharged from the electrolyzer is usually dehumidified in a dehumidifier before being used as fuel or the like.
  • Patent Document 1 discloses a dehumidifier configured to dehumidify hydrogen generated by a water electrolysis device using a dehumidifier that includes an adsorbent that can adsorb moisture.
  • a portion of the hydrogen after being dehumidified is used to regenerate the adsorbent that has adsorbed moisture.
  • Hydrogen containing water, which is used to regenerate the adsorbent is released into the atmosphere.
  • At least one embodiment of the present invention aims to provide a fuel supply device and combustion equipment that can reduce loss of hydrogen produced in a water electrolysis device.
  • a fuel supply device includes: a water electrolysis device; a dehumidifier that is installed in a hydrogen line through which hydrogen from the water electrolysis device flows and includes an adsorbent for adsorbing moisture contained in the hydrogen;
  • the hydrogen line is branched from the hydrogen line downstream of the dehumidifier, and is configured to supply a portion of the hydrogen dehumidified by the dehumidifier to the dehumidifier as regeneration gas for regenerating the adsorbent.
  • the regeneration gas exhaust line is configured to be connected to a fuel line for supplying a first gas fuel to the combustion device.
  • the combustion equipment includes: a combustion device; a fuel line for supplying a first gas fuel to the combustion device;
  • the above-mentioned fuel supply device, Equipped with The regeneration gas exhaust line of the fuel supply device is connected to the fuel line.
  • a fuel supply device and combustion equipment are provided that can reduce loss of hydrogen produced in a water electrolysis device.
  • FIG. 1 is a schematic configuration diagram of a combustion facility including a fuel supply device according to an embodiment.
  • FIG. 1 is a schematic configuration diagram of a combustion facility including a fuel supply device according to an embodiment.
  • the combustion equipment 100 according to one embodiment includes a combustion device 50 configured to burn fuel, a fuel supply device 10 configured to supply fuel to the combustion device 50, It is equipped with The combustion equipment 100 also includes a fuel line 28 for supplying the first gas fuel to the combustion device 50.
  • the combustion device 50 shown in FIG. 1 includes a compressor 52 for compressing air, and a combustor 54 configured to combust fuel using the compressed air from the compressor 52 to generate combustion gas. a turbine 56 configured to be driven by combustion gas from a combustor 54; The first gaseous fuel is adapted to be supplied to the combustor 54 via fuel line 28 .
  • the combustion device 50 may include a combustion furnace such as a boiler, a burner such as a heat treatment furnace, and the like.
  • the fuel line 28 may be provided with a compressor 30 for pressurizing the first gas fuel.
  • the type of first gas fuel supplied to the combustion device 50 via the fuel line 28 is not particularly limited.
  • the first gaseous fuel may include, for example, a hydrocarbon such as methane or propane, ammonia, or synthesis gas containing carbon monoxide.
  • a fuel supply device 10 includes a water electrolysis device 11 and a dehumidifier 14 provided in a hydrogen line 12 through which hydrogen from the water electrolysis device 11 flows. There is.
  • the water electrolysis device 11 is configured to electrolyze water to generate hydrogen and oxygen.
  • the type of water electrolysis device 11 is not limited.
  • the water electrolysis device 11 may be, for example, an alkaline water electrolysis device, a polymer electrolyte membrane (PEM) type water electrolysis device, or an anion exchange membrane (AEM) type water electrolysis device.
  • PEM polymer electrolyte membrane
  • AEM anion exchange membrane
  • the water electrolysis device 11 includes an electrolytic cell for electrolyzing water.
  • Water is supplied to the electrolytic cell. Electric current is supplied to the electrolytic cell via a rectifier.
  • water in the electrolytic cell is electrolyzed by applying a voltage and passing a current between a pair of electrodes provided in the electrolytic cell, and hydrogen is generated on the cathode side and oxygen is generated on the anode side.
  • Water in which an electrolyte is dissolved is supplied into the electrolytic cell, and the water (water constituting the electrolyte solution) may be electrolyzed.
  • the electrolyte may be an alkaline substance such as potassium hydroxide (KOH).
  • hydrogen generated in the water electrolysis device 11 is led to a hydrogen line 12.
  • Hydrogen generated in the electrolytic cell of the water electrolysis device 11 is discharged from the electrolytic cell along with moisture. Therefore, the hydrogen introduced from the water electrolysis device 11 to the hydrogen line 12 contains a certain amount of water.
  • the oxygen generated in the water electrolysis device 11 is led to an oxygen line (not shown), and may be used in equipment that uses oxygen, or may be released to the outside. .
  • the dehumidifier 14 includes an adsorbent (not shown) that can adsorb moisture. Hydrogen introduced into the dehumidifier 14 via the hydrogen line 12 is dehumidified by the adsorbent and then discharged from the dehumidifier 14.
  • the hydrogen dehumidified by the dehumidifier 14 may be supplied to hydrogen consumption equipment (hydrogen consumption destination) via the hydrogen line 12.
  • Hydrogen consuming equipment includes, for example, hydrogen combustion equipment configured to burn hydrogen (e.g. gas turbine equipment or steel manufacturing equipment), hydrogen liquefaction equipment configured to liquefy hydrogen, and hydrogen consuming equipment configured to liquefy hydrogen through a chemical reaction.
  • Equipment that generates electricity e.g., power generation equipment that includes fuel cells such as SOFC (Solid Oxide Fuel Cell)
  • equipment that produces fuel using hydrogen as a raw material e.g., fuel synthesis equipment, etc.
  • It may also include a hydrogen gas station configured as such.
  • the hydrogen dehumidified by the dehumidifier 14 may be supplied to the combustion device 50 as the second gas fuel via the hydrogen line 12.
  • a storage section 18 (such as a tank or cylinder) for storing hydrogen dehumidified by the dehumidifier 14 is provided downstream of the dehumidifier 14 in the hydrogen line 12. may be provided. Further, the hydrogen stored in the storage section 18 may be supplied to the above-mentioned hydrogen consumption equipment or combustion device 50.
  • a compressor 16 for compressing the hydrogen dehumidified by the dehumidifier 14 may be provided downstream of the dehumidifier 14. The compressor 16 may be provided upstream of the storage section 18 in the hydrogen line 12.
  • the fuel supply device 10 includes a regeneration gas supply line 20 for supplying regeneration gas to the dehumidifier 14 for regenerating the adsorbent in the dehumidifier 14, and a regeneration gas discharge line through which the regeneration gas is discharged from the dehumidifier 14. 22.
  • regeneration gas is supplied via the regeneration gas supply line 20 to the adsorbent that has adsorbed moisture contained in hydrogen gas.
  • This regenerating gas removes moisture from the adsorbent, thereby regenerating the adsorbent and making it capable of adsorbing moisture again.
  • the regeneration gas after removing moisture from the adsorbent is discharged from the dehumidifier 14 via a regeneration gas discharge line 22.
  • the regeneration gas supply line 20 is provided so as to branch from the hydrogen line 12 at a position downstream of the dehumidifier 14. That is, part of the hydrogen dehumidified by the dehumidifier 14 is supplied to the dehumidifier 14 via the regeneration gas supply line 20 as regeneration gas for regenerating the adsorbent. Further, hydrogen after being used as regeneration gas in the dehumidifier 14 (that is, hydrogen after removing moisture from the adsorbent) is discharged from the dehumidifier 14 via the regeneration gas discharge line 22. There is.
  • the hydrogen gas to be dehumidified from the hydrogen line 12 and the regeneration gas (hydrogen gas after dehumidification) supplied via the regeneration gas supply line 20 flow through separate routes. They are designed to prevent them from mixing with each other.
  • the dehumidifier 14 may include a pair of adsorbents, and while one adsorbent dehumidifies hydrogen from the water electrolysis device 11, the other adsorbent is used for regeneration gas (hydrogen gas after dehumidification). ) (see Patent Document 1).
  • the regeneration gas exhaust line 22 is connected to a fuel line 28 for supplying a first gaseous fuel to the combustion device 50. That is, hydrogen gas after being used as regeneration gas in the dehumidifier 14 is supplied to the fuel line 28, mixed with the first gas fuel in the fuel line 28, and supplied to the combustion device 50. There is.
  • the hydrogen containing moisture after being used as the regeneration gas for regenerating the adsorbent is converted into the regeneration gas. It is supplied via exhaust line 22 to fuel line 28 to be mixed with the first gaseous fuel.
  • hydrogen after being used as regeneration gas can be supplied to the combustion device 50 together with the first gas fuel and used as fuel. Therefore, it is possible to increase the proportion of hydrogen generated in the water electrolysis device 11 that is not released and is used as fuel, and hydrogen loss can be reduced.
  • hydrogen after being used as regeneration gas contains some moisture (moisture taken from the adsorbent), but the concentration of moisture decreases when mixed with the first gas fuel, so it is not introduced into a compressor, etc. Even if this happens, it is unlikely to cause risks such as corrosion. Therefore, according to the embodiment described above, hydrogen after being used as regeneration gas can be effectively used as fuel.
  • the regeneration gas discharge line 22 is provided with a buffer tank 24 for storing the regeneration gas (hydrogen gas) discharged from the dehumidifier 14.
  • the supply of regeneration gas to the adsorbent of the dehumidifier 14 may be performed intermittently.
  • hydrogen as regeneration gas discharged from the dehumidifier 14 can be stored in the buffer tank 24. Therefore, even if the regeneration gas (hydrogen) is intermittently supplied to the adsorbent, by storing the regeneration gas discharged from the dehumidifier 14 in the buffer tank 24, the supply to the fuel line 28 can be prevented. It becomes easier to adjust the supply amount of regeneration gas (hydrogen).
  • the fuel supply device 10 includes a pressure regulator 25 configured to regulate the pressure of the regeneration gas exhaust line 22 downstream of the buffer tank 24.
  • the pressure regulator 25 includes a pressure regulator valve 26 provided downstream of the buffer tank 24 in the regeneration gas discharge line 22 .
  • the pressure of the regeneration gas discharge line 22 on the downstream side of the buffer tank 24 can be adjusted by the pressure adjustment section 25. This makes it easier to adjust the amount of regeneration gas (hydrogen) supplied to the fuel line 28.
  • the regeneration gas exhaust line 22 is connected to the fuel line 28 upstream of the compressor 30 provided in the fuel line 28.
  • the regeneration gas from the dehumidifier 14 is supplied to the fuel line 28 upstream of the compressor 30, so that the mixture of the first gas fuel and the regeneration gas (hydrogen with moisture) is compressed. is supplied to the machine 30.
  • the concentration of moisture contained in the regeneration gas is lowered by mixing the regeneration gas and the first gas fuel, the risk of corrosion occurring in the compressor 30 can be reduced.
  • the hydrogen used as regeneration gas can be supplied to the combustion device 50 as fuel while reducing the risk of corrosion in the compressor 30.
  • the fuel supply device (10) includes: A water electrolysis device (11), a dehumidifier (14) that is installed in a hydrogen line (12) through which hydrogen from the water electrolysis device flows and includes an adsorbent for adsorbing moisture contained in the hydrogen;
  • the hydrogen line is branched from the hydrogen line downstream of the dehumidifier, and is configured to supply a portion of the hydrogen dehumidified by the dehumidifier to the dehumidifier as regeneration gas for regenerating the adsorbent.
  • a dehumidifier for dehumidifying hydrogen generated in a water electrolysis device hydrogen containing moisture after being used as a regeneration gas for regenerating an adsorbent is converted into a regeneration gas. It is supplied to the fuel line via the exhaust line to mix with the first gaseous fuel. Thereby, hydrogen after being used as regeneration gas can be supplied to the combustion device together with the first gas fuel and used as fuel. Therefore, it is possible to increase the proportion of hydrogen generated in the water electrolysis device that is not released and is used as fuel, and hydrogen loss can be reduced.
  • hydrogen after being used as regeneration gas contains some moisture (moisture taken from the adsorbent), but the concentration of moisture decreases when mixed with the first gas fuel, so it is not introduced into a compressor, etc. Even if this happens, it is unlikely to cause risks such as corrosion. Therefore, according to the configuration (1) above, hydrogen after being used as regeneration gas can be used as fuel.
  • the fuel supply device includes: A buffer tank (24) is provided in the regeneration gas discharge line and for storing hydrogen as the regeneration gas discharged from the dehumidifier.
  • the supply of regeneration gas to the adsorbent of the dehumidifier may be performed intermittently.
  • hydrogen as regeneration gas discharged from the dehumidifier can be stored in the buffer tank. Therefore, even if the regeneration gas (hydrogen) is intermittently supplied to the adsorbent, by storing the regeneration gas discharged from the dehumidifier in the buffer tank, the regeneration gas (hydrogen) can be supplied to the fuel line. This makes it easier to adjust the amount of hydrogen (hydrogen) supplied.
  • the fuel supply device includes: A pressure regulator (25) configured to regulate the pressure of the regeneration gas discharge line downstream of the buffer tank is provided.
  • the pressure of the regeneration gas discharge line on the downstream side of the buffer tank can be adjusted by the pressure adjustment section. This makes it easier to adjust the amount of regeneration gas (hydrogen) supplied to the fuel line.
  • the hydrogen line is configured to supply the combustion device with hydrogen dehumidified by the dehumidifier as a second gas fuel.
  • the combustion equipment (100) includes: a combustion device (50); the fuel line (28) for supplying the first gas fuel to the combustion device;
  • the fuel supply device (10) according to any one of (1) to (4) above; Equipped with The regeneration gas exhaust line (22) of the fuel supply device is connected to the fuel line.
  • a dehumidifier for dehumidifying hydrogen generated in a water electrolysis device hydrogen containing moisture after being used as a regeneration gas for regenerating an adsorbent is converted into a regeneration gas. It is supplied to the fuel line via the exhaust line to mix with the first gaseous fuel. Thereby, hydrogen after being used as regeneration gas can be supplied to the combustion device together with the first gas fuel and used as fuel. Therefore, it is possible to increase the proportion of hydrogen generated in the water electrolysis device that is not released and is used as fuel, and hydrogen loss can be reduced.
  • the combustion equipment includes: a compressor (30) provided in the fuel line for pressurizing the first gas fuel;
  • the regeneration gas discharge line is connected to the fuel line upstream of the compressor.
  • the regeneration gas from the dehumidifier is supplied to the fuel line upstream of the compressor, so the mixture of the first gas fuel and the regeneration gas (hydrogen with moisture) is supplied to the compressor. is supplied to
  • the concentration of moisture contained in the regeneration gas is lowered by mixing the regeneration gas and the first gas fuel, corrosion is less likely to occur in the compressor. Therefore, with the configuration (6) above, hydrogen used as regeneration gas can be supplied to the combustion device as fuel while reducing the risk of corrosion in the compressor.
  • the combustion device includes a gas turbine.
  • a dehumidifier for dehumidifying hydrogen generated by a water electrolysis device hydrogen containing moisture after being used as a regeneration gas for regenerating an adsorbent is converted into a regeneration gas. It is supplied to the fuel line via the exhaust line to mix with the first gaseous fuel. Thereby, hydrogen after being used as regeneration gas can be supplied to the gas turbine together with the first gas fuel and used as fuel. Therefore, it is possible to increase the proportion of hydrogen generated in the water electrolysis device that is not released and is used as fuel, and hydrogen loss can be reduced.
  • expressions expressing shapes such as a square shape or a cylindrical shape do not only mean shapes such as a square shape or a cylindrical shape in a strict geometric sense, but also within the range where the same effect can be obtained. , shall also represent shapes including uneven parts, chamfered parts, etc.
  • the expressions "comprising,””including,” or “having" one component are not exclusive expressions that exclude the presence of other components.
  • Fuel supply device 11 Water electrolysis device 12 Hydrogen line 14 Dehumidifier 16 Compressor 18 Storage section 20 Regeneration gas supply line 22 Regeneration gas discharge line 24 Buffer tank 25 Pressure adjustment section 26 Pressure adjustment valve 28 Fuel line 30 Compressor 50 Combustion device 52 Compressor 54 Combustor 56 Turbine 100 Combustion equipment

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Abstract

A fuel supply apparatus comprising: a water electrolysis device; a dehumidifier that is provided in a hydrogen line through which hydrogen from the water electrolysis device flows, and includes an adsorbing material for adsorbing water contained in the hydrogen; a regeneration gas supply line that branches off from the hydrogen line at a location on the downstream side of the dehumidifier, and that supplies, to the dehumidifier, a portion of the hydrogen dehumidified by the dehumidifier, as a regeneration gas for regenerating the adsorbing material; and a regeneration gas discharge line that discharges, from the dehumidifier, the hydrogen supplied to the dehumidifier as the regeneration gas through the regeneration gas supply line, wherein the regeneration gas discharge line is configured to be connected to a fuel line for supplying a first gas fuel to a combustion device.

Description

燃料供給装置及び燃焼設備Fuel supply equipment and combustion equipment
　本開示は、燃料供給装置及び燃焼設備に関する。
　本願は、２０２２年７月１３日に日本国特許庁に出願された特願２０２２－１１２１１０号に基づき優先権を主張し、その内容をここに援用する。 The present disclosure relates to fuel supply devices and combustion equipment.
This application claims priority based on Japanese Patent Application No. 2022-112110 filed with the Japan Patent Office on July 13, 2022, the contents of which are incorporated herein.
　水素を製造するために水電解装置が用いられることがある。水電解装置の電解槽で発生した水素は、水分を伴って電解槽から排出される。このため、電解槽から排出された水素は、通常、除湿器で除湿されてから燃料等として使用される。 A water electrolysis device is sometimes used to produce hydrogen. Hydrogen generated in the electrolytic cell of a water electrolysis device is discharged from the electrolytic cell along with moisture. For this reason, the hydrogen discharged from the electrolyzer is usually dehumidified in a dehumidifier before being used as fuel or the like.
　特許文献１には、水電解装置で生成した水素を、水分を吸着可能な吸着材を含む除湿器を用いて除湿するように構成された除湿装置が開示されている。この除湿装置では、水分を吸着した吸着材を再生するために、除湿された後の水素の一部が使用される。吸着材の再生に使用されることにより水分を含んだ水素は、大気へ放出されるようになっている。 Patent Document 1 discloses a dehumidifier configured to dehumidify hydrogen generated by a water electrolysis device using a dehumidifier that includes an adsorbent that can adsorb moisture. In this dehumidifier, a portion of the hydrogen after being dehumidified is used to regenerate the adsorbent that has adsorbed moisture. Hydrogen containing water, which is used to regenerate the adsorbent, is released into the atmosphere.
特開２０２０－１９９４３３号公報JP 2020-199433 Publication
　従来、除湿器の吸着材を再生するための再生ガスとして用いられた水素は、水分を含むため燃料等として利用することが難しく、このため、特許文献１にも記載されるように、その後利用されずに大気へ放出されており、損失となっていた。 Conventionally, hydrogen used as a regeneration gas for regenerating the adsorbent of a dehumidifier contains water, so it is difficult to use it as a fuel, etc. Therefore, as described in Patent Document 1, it is difficult to use it afterward. It was released into the atmosphere without being absorbed, resulting in a loss.
　上述の事情に鑑みて、本発明の少なくとも一実施形態は、水電解装置で生成された水素の損失を低減可能な燃料供給装置及び燃焼設備を提供することを目的とする。 In view of the above-mentioned circumstances, at least one embodiment of the present invention aims to provide a fuel supply device and combustion equipment that can reduce loss of hydrogen produced in a water electrolysis device.
　本発明の少なくとも一実施形態に係る燃料供給装置は、
　水電解装置と、
　前記水電解装置からの水素が流れる水素ラインに設けられ、前記水素に含まれる水分を吸着するための吸着材を含む除湿器と、
　前記除湿器の下流側にて前記水素ラインから分岐するとともに、前記吸着材を再生するための再生ガスとして前記除湿器で除湿された水素の一部を前記除湿器に供給するように構成された再生ガス供給ラインと、
　前記再生ガス供給ラインを介して前記除湿器に供給された前記再生ガスとしての水素を前記除湿器から排出するための再生ガス排出ラインと、
を備え、
　前記再生ガス排出ラインは、燃焼装置に第１ガス燃料を供給するための燃料ラインに接続されるように構成される。 A fuel supply device according to at least one embodiment of the present invention includes:
a water electrolysis device;
a dehumidifier that is installed in a hydrogen line through which hydrogen from the water electrolysis device flows and includes an adsorbent for adsorbing moisture contained in the hydrogen;
The hydrogen line is branched from the hydrogen line downstream of the dehumidifier, and is configured to supply a portion of the hydrogen dehumidified by the dehumidifier to the dehumidifier as regeneration gas for regenerating the adsorbent. a regeneration gas supply line;
a regeneration gas discharge line for discharging hydrogen as the regeneration gas supplied to the dehumidifier via the regeneration gas supply line from the dehumidifier;
Equipped with
The regeneration gas exhaust line is configured to be connected to a fuel line for supplying a first gas fuel to the combustion device.
　また、本発明の少なくとも一実施形態に係る燃焼設備は、
　燃焼装置と、
　前記燃焼装置に第１ガス燃料を供給するための燃料ラインと、
　上述の燃料供給装置と、
を備え、
　前記燃料供給装置の前記再生ガス排出ラインは、前記燃料ラインに接続される。 Furthermore, the combustion equipment according to at least one embodiment of the present invention includes:
a combustion device;
a fuel line for supplying a first gas fuel to the combustion device;
The above-mentioned fuel supply device,
Equipped with
The regeneration gas exhaust line of the fuel supply device is connected to the fuel line.
　本発明の少なくとも一実施形態によれば、水電解装置で生成された水素の損失を低減可能な燃料供給装置及び燃焼設備が提供される。 According to at least one embodiment of the present invention, a fuel supply device and combustion equipment are provided that can reduce loss of hydrogen produced in a water electrolysis device.
一実施形態に係る燃料供給装置を含む燃焼設備の概略構成図である。1 is a schematic configuration diagram of a combustion facility including a fuel supply device according to an embodiment.
　以下、添付図面を参照して本発明の幾つかの実施形態について説明する。ただし、実施形態として記載されている又は図面に示されている構成部品の寸法、材質、形状、その相対的配置等は、本発明の範囲をこれに限定する趣旨ではなく、単なる説明例にすぎない。 Hereinafter, some embodiments of the present invention will be described with reference to the accompanying drawings. However, the dimensions, materials, shapes, relative arrangements, etc. of the components described as the embodiments or shown in the drawings are not intended to limit the scope of the present invention thereto, and are merely illustrative examples. do not have.
（燃焼設備の構成）
　図１は、一実施形態に係る燃料供給装置を含む燃焼設備の概略構成図である。同図に示すように、一実施形態に係る燃焼設備１００は、燃料を燃焼するように構成された燃焼装置５０と、燃焼装置５０に燃料を供給するように構成された燃料供給装置１０と、を備えている。また、燃焼設備１００は、燃焼装置５０に第１ガス燃料を供給するための燃料ライン２８を備えている。 (Composition of combustion equipment)
FIG. 1 is a schematic configuration diagram of a combustion facility including a fuel supply device according to an embodiment. As shown in the figure, the combustion equipment 100 according to one embodiment includes a combustion device 50 configured to burn fuel, a fuel supply device 10 configured to supply fuel to the combustion device 50, It is equipped with The combustion equipment 100 also includes a fuel line 28 for supplying the first gas fuel to the combustion device 50.
　図１に示す燃焼装置５０は、空気を圧縮するための圧縮機５２と、圧縮機５２からの圧縮空気を用いて燃料を燃焼させて燃焼ガスを生成するように構成された燃焼器５４と、燃焼器５４からの燃焼ガスによって駆動されるように構成されたタービン５６と、を含むガスタービン装置を含む。第１ガス燃料は、燃料ライン２８を介して燃焼器５４に供給されるようになっている。他の実施形態では、燃焼装置５０は、ボイラ等の燃焼炉や、熱処理炉等のバーナ等を含んでもよい。 The combustion device 50 shown in FIG. 1 includes a compressor 52 for compressing air, and a combustor 54 configured to combust fuel using the compressed air from the compressor 52 to generate combustion gas. a turbine 56 configured to be driven by combustion gas from a combustor 54; The first gaseous fuel is adapted to be supplied to the combustor 54 via fuel line 28 . In other embodiments, the combustion device 50 may include a combustion furnace such as a boiler, a burner such as a heat treatment furnace, and the like.
　燃料ライン２８には、第１ガス燃料を昇圧するための圧縮機３０が設けられていてもよい。 The fuel line 28 may be provided with a compressor 30 for pressurizing the first gas fuel.
　燃料ライン２８を介して燃焼装置５０に供給される第１ガス燃料の種類は特に限定されない。第１ガス燃料は、例えば、メタン又はプロパン等の炭化水素、アンモニア、又は一酸化炭素を含む合成ガス等を含んでもよい。 The type of first gas fuel supplied to the combustion device 50 via the fuel line 28 is not particularly limited. The first gaseous fuel may include, for example, a hydrocarbon such as methane or propane, ammonia, or synthesis gas containing carbon monoxide.
（燃料供給装置の構成）
　図１に示すように、幾つかの実施形態に係る燃料供給装置１０は、水電解装置１１と、水電解装置１１からの水素が流れる水素ライン１２に設けられた除湿器１４と、を備えている。 (Configuration of fuel supply device)
As shown in FIG. 1, a fuel supply device 10 according to some embodiments includes a water electrolysis device 11 and a dehumidifier 14 provided in a hydrogen line 12 through which hydrogen from the water electrolysis device 11 flows. There is.
　水電解装置１１は、水を電気分解して水素及び酸素を生成するように構成される。水電解装置１１のタイプは限定されない。水電解装置１１は、例えば、アルカリ型水電解装置、固体高分子膜（Ｐｏｌｙｍｅｒ　Ｅｌｅｃｔｒｏｌｙｔｅ　Ｍｅｍｂｒａｎｅ：ＰＥＭ）型水電解装置、アニオン交換膜（Ａｎｉｏｎ　Ｅｘｃｈａｎｇｅ　Ｍｅｍｂｒａｎｅ：ＡＥＭ）型水電解装置であってもよい。 The water electrolysis device 11 is configured to electrolyze water to generate hydrogen and oxygen. The type of water electrolysis device 11 is not limited. The water electrolysis device 11 may be, for example, an alkaline water electrolysis device, a polymer electrolyte membrane (PEM) type water electrolysis device, or an anion exchange membrane (AEM) type water electrolysis device.
　詳しくは図示しないが、水電解装置１１は、水を電気分解するための電解槽を含む。電解槽には水が供給されるようになっている。電解槽には、整流器を介して電流が供給される。これにより、電解槽に設けられた一対の電極間に電圧をかけて電流を流すことで電解槽内の水が電気分解され、陰極側で水素が発生し、陽極側で酸素が発生する。電解槽内には、電解質が溶解した水（電解質溶液）が供給されており、該水（電解質溶液を構成する水）が電気分解されるようになっていてもよい。電解質は、水酸化カリウム（ＫＯＨ）等のアルカリ性物質であってもよい。 Although not shown in detail, the water electrolysis device 11 includes an electrolytic cell for electrolyzing water. Water is supplied to the electrolytic cell. Electric current is supplied to the electrolytic cell via a rectifier. As a result, water in the electrolytic cell is electrolyzed by applying a voltage and passing a current between a pair of electrodes provided in the electrolytic cell, and hydrogen is generated on the cathode side and oxygen is generated on the anode side. Water in which an electrolyte is dissolved (electrolyte solution) is supplied into the electrolytic cell, and the water (water constituting the electrolyte solution) may be electrolyzed. The electrolyte may be an alkaline substance such as potassium hydroxide (KOH).
　図１に示すように、水電解装置１１で生成された水素は、水素ライン１２に導かれるようになっている。水電解装置１１の電解槽で発生した水素は、水分を伴って電解槽から排出される。したがって、水電解装置１１から水素ライン１２に導かれた水素は、ある程度の水分を含んでいる。 As shown in FIG. 1, hydrogen generated in the water electrolysis device 11 is led to a hydrogen line 12. Hydrogen generated in the electrolytic cell of the water electrolysis device 11 is discharged from the electrolytic cell along with moisture. Therefore, the hydrogen introduced from the water electrolysis device 11 to the hydrogen line 12 contains a certain amount of water.
　なお、水電解装置１１で生成された酸素は、図示しない酸素ラインに導かれるようになっており、酸素を使用する機器で使用されるか、又は外部に放出されるようになっていてもよい。 Note that the oxygen generated in the water electrolysis device 11 is led to an oxygen line (not shown), and may be used in equipment that uses oxygen, or may be released to the outside. .
　除湿器１４は、水分を吸着可能な吸着材（不図示）を含む。水素ライン１２を介して除湿器１４に導入された水素は、吸着材によって除湿された後、除湿器１４から排出される。 The dehumidifier 14 includes an adsorbent (not shown) that can adsorb moisture. Hydrogen introduced into the dehumidifier 14 via the hydrogen line 12 is dehumidified by the adsorbent and then discharged from the dehumidifier 14.
　幾つかの実施形態では、図１に示すように、除湿器１４で除湿された水素は、水素ライン１２を介して、水素消費設備（水素消費先）に供給されるようになっていてもよい。水素消費設備は、例えば、水素を燃焼するように構成された水素燃焼設備（例えばガスタービン設備又は製鉄設備等）、水素を液化するように構成された水素液化設備、水素を燃料として化学反応により電気を生成する設備（例えばＳＯＦＣ（Ｓｏｌｉｄ　Ｏｘｉｄｅ　Ｆｕｅｌ　Ｃｅｌｌ）等の燃料電池を含む発電設備等）、水素を原料として燃料を製造する設備（例えば燃料合成設備等）、又は、水素を機器に供給するように構成された水素ガスステーションを含んでもよい。 In some embodiments, as shown in FIG. 1, the hydrogen dehumidified by the dehumidifier 14 may be supplied to hydrogen consumption equipment (hydrogen consumption destination) via the hydrogen line 12. . Hydrogen consuming equipment includes, for example, hydrogen combustion equipment configured to burn hydrogen (e.g. gas turbine equipment or steel manufacturing equipment), hydrogen liquefaction equipment configured to liquefy hydrogen, and hydrogen consuming equipment configured to liquefy hydrogen through a chemical reaction. Equipment that generates electricity (e.g., power generation equipment that includes fuel cells such as SOFC (Solid Oxide Fuel Cell)), equipment that produces fuel using hydrogen as a raw material (e.g., fuel synthesis equipment, etc.), or supplies hydrogen to equipment. It may also include a hydrogen gas station configured as such.
　あるいは、幾つかの実施形態では、除湿器１４で除湿された水素は、水素ライン１２を介して、第２ガス燃料として燃焼装置５０に供給されるようになっていてもよい。 Alternatively, in some embodiments, the hydrogen dehumidified by the dehumidifier 14 may be supplied to the combustion device 50 as the second gas fuel via the hydrogen line 12.
　幾つかの実施形態では、図１に示すように、水素ライン１２において、除湿器１４の下流側に、除湿器１４で除湿された水素を貯留するための貯留部１８（タンク又はボンベ等）が設けられてもよい。また、貯留部１８に貯留された水素が、上述の水素消費設備又は燃焼装置５０に供給されるようになっていてもよい。水素ライン１２において、除湿器１４の下流側に、除湿器１４で除湿された水素を圧縮するための圧縮機１６が設けられていてもよい。圧縮機１６は、水素ライン１２において貯留部１８の上流側に設けられていてもよい。 In some embodiments, as shown in FIG. 1, a storage section 18 (such as a tank or cylinder) for storing hydrogen dehumidified by the dehumidifier 14 is provided downstream of the dehumidifier 14 in the hydrogen line 12. may be provided. Further, the hydrogen stored in the storage section 18 may be supplied to the above-mentioned hydrogen consumption equipment or combustion device 50. In the hydrogen line 12, a compressor 16 for compressing the hydrogen dehumidified by the dehumidifier 14 may be provided downstream of the dehumidifier 14. The compressor 16 may be provided upstream of the storage section 18 in the hydrogen line 12.
　燃料供給装置１０は、除湿器１４の吸着剤を再生するための再生ガスを除湿器１４に供給するための再生ガス供給ライン２０と、除湿器１４から該再生ガスが排出される再生ガス排出ライン２２と、を含む。 The fuel supply device 10 includes a regeneration gas supply line 20 for supplying regeneration gas to the dehumidifier 14 for regenerating the adsorbent in the dehumidifier 14, and a regeneration gas discharge line through which the regeneration gas is discharged from the dehumidifier 14. 22.
　すなわち、水素ガスに含まれる水分を吸着した吸着剤に、再生ガス供給ライン２０を介して再生ガスが供給されるようになっている。この再生ガスが吸着材から水分を奪い、これにより吸着材が再生され、吸着材が再度水分を吸着可能な状態となる。吸着材から水分を奪った後の再生ガスは、再生ガス排出ライン２２を介して除湿器１４から排出されるようになっている。 In other words, regeneration gas is supplied via the regeneration gas supply line 20 to the adsorbent that has adsorbed moisture contained in hydrogen gas. This regenerating gas removes moisture from the adsorbent, thereby regenerating the adsorbent and making it capable of adsorbing moisture again. The regeneration gas after removing moisture from the adsorbent is discharged from the dehumidifier 14 via a regeneration gas discharge line 22.
　再生ガス供給ライン２０は、除湿器１４の下流側の位置にて水素ライン１２から分岐するように設けられる。すなわち、吸着材を再生するための再生ガスとして、除湿器１４で除湿された水素の一部が、再生ガス供給ライン２０を介して除湿器１４に供給されるようになっている。また、除湿器１４において再生ガスとして使用された後の水素（すなわち、吸着材から水分を奪った後の水素）が、再生ガス排出ライン２２を介して除湿器１４から排出されるようになっている。 The regeneration gas supply line 20 is provided so as to branch from the hydrogen line 12 at a position downstream of the dehumidifier 14. That is, part of the hydrogen dehumidified by the dehumidifier 14 is supplied to the dehumidifier 14 via the regeneration gas supply line 20 as regeneration gas for regenerating the adsorbent. Further, hydrogen after being used as regeneration gas in the dehumidifier 14 (that is, hydrogen after removing moisture from the adsorbent) is discharged from the dehumidifier 14 via the regeneration gas discharge line 22. There is.
　なお、除湿器１４において、水素ライン１２からの除湿対象の水素ガスと、再生ガス供給ライン２０を介して供給される再生ガス（除湿後の水素ガス）は、別々の経路を流通するようになっており、互いに混合しないようになっている。また、除湿器１４は、一対の吸着材を含んでいてもよく、一方の吸着材で水電解装置１１からの水素の除湿を行う間に、他方の吸着材を再生ガス（除湿後の水素ガス）で再生するように構成されていてもよい（特許文献１参照）。 Note that in the dehumidifier 14, the hydrogen gas to be dehumidified from the hydrogen line 12 and the regeneration gas (hydrogen gas after dehumidification) supplied via the regeneration gas supply line 20 flow through separate routes. They are designed to prevent them from mixing with each other. Further, the dehumidifier 14 may include a pair of adsorbents, and while one adsorbent dehumidifies hydrogen from the water electrolysis device 11, the other adsorbent is used for regeneration gas (hydrogen gas after dehumidification). ) (see Patent Document 1).
　幾つかの実施形態では、図１に示すように、再生ガス排出ライン２２は、第１ガス燃料を燃焼装置５０に供給するための燃料ライン２８に接続される。すなわち、除湿器１４にて再生ガスとして使用された後の水素ガスが燃料ライン２８に供給されて、燃料ライン２８にて第１ガス燃料と混合され、燃焼装置５０に供給されるようになっている。 In some embodiments, as shown in FIG. 1, the regeneration gas exhaust line 22 is connected to a fuel line 28 for supplying a first gaseous fuel to the combustion device 50. That is, hydrogen gas after being used as regeneration gas in the dehumidifier 14 is supplied to the fuel line 28, mixed with the first gas fuel in the fuel line 28, and supplied to the combustion device 50. There is.
　上述の実施形態によれば、水電解装置１１で生成された水素を除湿するための除湿器１４において、吸着材を再生するための再生ガスとして使用された後の水分を含む水素を、再生ガス排出ライン２２を介して燃料ライン２８に供給して、第１ガス燃料に混入させる。これにより、再生ガスとして使用した後の水素を、第１ガス燃料とともに燃焼装置５０に供給して燃料として使用することができる。よって、水電解装置１１で生成された水素のうち、放出されずに燃料として使用される分の割合を高めることができ、水素の損失を低減することができる。 According to the embodiment described above, in the dehumidifier 14 for dehumidifying the hydrogen generated in the water electrolysis device 11, the hydrogen containing moisture after being used as the regeneration gas for regenerating the adsorbent is converted into the regeneration gas. It is supplied via exhaust line 22 to fuel line 28 to be mixed with the first gaseous fuel. Thereby, hydrogen after being used as regeneration gas can be supplied to the combustion device 50 together with the first gas fuel and used as fuel. Therefore, it is possible to increase the proportion of hydrogen generated in the water electrolysis device 11 that is not released and is used as fuel, and hydrogen loss can be reduced.
　なお、再生ガスとして用いられた後の水素は若干の水分（吸着剤から奪った水分）を含むが、第１ガス燃料と混合されることにより水分の濃度が低くなるため、コンプレッサ等に導入されたとしても、腐食等のリスクの要因となり難い。このため、上述の実施形態によれば、再生ガスとして用いられた後の水素を燃料として有効利用することができる。 Note that hydrogen after being used as regeneration gas contains some moisture (moisture taken from the adsorbent), but the concentration of moisture decreases when mixed with the first gas fuel, so it is not introduced into a compressor, etc. Even if this happens, it is unlikely to cause risks such as corrosion. Therefore, according to the embodiment described above, hydrogen after being used as regeneration gas can be effectively used as fuel.
　幾つかの実施形態では、例えば図１に示すように、再生ガス排出ライン２２には、除湿器１４から排出された再生ガス（水素ガス）を貯留するためのバッファタンク２４が設けられる。 In some embodiments, for example, as shown in FIG. 1, the regeneration gas discharge line 22 is provided with a buffer tank 24 for storing the regeneration gas (hydrogen gas) discharged from the dehumidifier 14.
　除湿器１４の吸着材への再生ガスの供給は、間欠的に行われる場合がある。この点、上述の実施形態によれば、除湿器１４から排出された再生ガスとしての水素をバッファタンク２４に貯留することができる。よって、吸着材への再生ガス（水素）の供給を間欠的に行う場合であっても、除湿器１４から排出後の再生ガスをバッファタンク２４に貯留しておくことで、燃料ライン２８への再生ガス（水素）の供給量を調節しやすくなる。 The supply of regeneration gas to the adsorbent of the dehumidifier 14 may be performed intermittently. In this regard, according to the embodiment described above, hydrogen as regeneration gas discharged from the dehumidifier 14 can be stored in the buffer tank 24. Therefore, even if the regeneration gas (hydrogen) is intermittently supplied to the adsorbent, by storing the regeneration gas discharged from the dehumidifier 14 in the buffer tank 24, the supply to the fuel line 28 can be prevented. It becomes easier to adjust the supply amount of regeneration gas (hydrogen).
　幾つかの実施形態では、例えば図１に示すように、燃料供給装置１０は、バッファタンク２４の下流側における再生ガス排出ライン２２の圧力を調節するように構成された圧力調節部２５を備える。図１に示す例示的な実施形態では、圧力調節部２５は、再生ガス排出ライン２２においてバッファタンク２４の下流側に設けられた圧力調整バルブ２６を含む。 In some embodiments, for example as shown in FIG. 1, the fuel supply device 10 includes a pressure regulator 25 configured to regulate the pressure of the regeneration gas exhaust line 22 downstream of the buffer tank 24. In the exemplary embodiment shown in FIG. 1 , the pressure regulator 25 includes a pressure regulator valve 26 provided downstream of the buffer tank 24 in the regeneration gas discharge line 22 .
　上述の実施形態によれば、圧力調節部２５によって、バッファタンク２４の下流側における再生ガス排出ライン２２の圧力を調節することができる。これにより、燃料ライン２８への再生ガス（水素）の供給量をより調節しやすくなる。 According to the embodiment described above, the pressure of the regeneration gas discharge line 22 on the downstream side of the buffer tank 24 can be adjusted by the pressure adjustment section 25. This makes it easier to adjust the amount of regeneration gas (hydrogen) supplied to the fuel line 28.
　幾つかの実施形態では、例えば図１に示すように、再生ガス排出ライン２２は、燃料ライン２８に設けられる圧縮機３０よりも上流側にて、燃料ライン２８に接続される。 In some embodiments, for example, as shown in FIG. 1, the regeneration gas exhaust line 22 is connected to the fuel line 28 upstream of the compressor 30 provided in the fuel line 28.
　上述の実施形態では、除湿器１４からの再生ガスは圧縮機３０よりも上流側にて燃料ライン２８に供給されるので、第１ガス燃料と再生ガス（水分を伴う水素）との混合物が圧縮機３０に供給される。ここで、再生ガス中に含まれる水分の濃度は、再生ガスと第１ガス燃料とが混合されることにより低くなるため、圧縮機３０において腐食が生じるリスクを低減することができる。このように、圧縮機３０での腐食のリスクを低減しながら、再生ガスとして使用された水素を、燃料として燃焼装置５０に供給することができる。 In the embodiment described above, the regeneration gas from the dehumidifier 14 is supplied to the fuel line 28 upstream of the compressor 30, so that the mixture of the first gas fuel and the regeneration gas (hydrogen with moisture) is compressed. is supplied to the machine 30. Here, since the concentration of moisture contained in the regeneration gas is lowered by mixing the regeneration gas and the first gas fuel, the risk of corrosion occurring in the compressor 30 can be reduced. In this way, the hydrogen used as regeneration gas can be supplied to the combustion device 50 as fuel while reducing the risk of corrosion in the compressor 30.
　上記各実施形態に記載の内容は、例えば以下のように把握される。 The contents described in each of the above embodiments can be understood as follows, for example.
（１）本発明の少なくとも一実施形態に係る燃料供給装置（１０）は、
　水電解装置（１１）と、
　前記水電解装置からの水素が流れる水素ライン（１２）に設けられ、前記水素に含まれる水分を吸着するための吸着材を含む除湿器（１４）と、
　前記除湿器の下流側にて前記水素ラインから分岐するとともに、前記吸着材を再生するための再生ガスとして前記除湿器で除湿された水素の一部を前記除湿器に供給するように構成された再生ガス供給ライン（２０）と、
　前記再生ガス供給ラインを介して前記除湿器に供給された前記再生ガスとしての水素を前記除湿器から排出するための再生ガス排出ライン（２２）と、
を備え、
　前記再生ガス排出ラインは、燃焼装置（５０）に第１ガス燃料を供給するための燃料ライン（２８）に接続されるように構成される。 (1) The fuel supply device (10) according to at least one embodiment of the present invention includes:
A water electrolysis device (11),
a dehumidifier (14) that is installed in a hydrogen line (12) through which hydrogen from the water electrolysis device flows and includes an adsorbent for adsorbing moisture contained in the hydrogen;
The hydrogen line is branched from the hydrogen line downstream of the dehumidifier, and is configured to supply a portion of the hydrogen dehumidified by the dehumidifier to the dehumidifier as regeneration gas for regenerating the adsorbent. a regeneration gas supply line (20);
a regeneration gas discharge line (22) for discharging hydrogen as the regeneration gas supplied to the dehumidifier via the regeneration gas supply line from the dehumidifier;
Equipped with
The regeneration gas exhaust line is configured to be connected to a fuel line (28) for supplying a first gaseous fuel to the combustion device (50).
　上記（１）の構成によれば、水電解装置で生成された水素を除湿するための除湿器において、吸着材を再生するための再生ガスとして使用された後の水分を含む水素を、再生ガス排出ラインを介して燃料ラインに供給して、第１ガス燃料に混入させる。これにより、再生ガスとして使用した後の水素を、第１ガス燃料とともに燃焼装置に供給して燃料として使用することができる。よって、水電解装置で生成された水素のうち、放出されずに燃料として使用される分の割合を高めることができ、水素の損失を低減することができる。 According to the configuration (1) above, in a dehumidifier for dehumidifying hydrogen generated in a water electrolysis device, hydrogen containing moisture after being used as a regeneration gas for regenerating an adsorbent is converted into a regeneration gas. It is supplied to the fuel line via the exhaust line to mix with the first gaseous fuel. Thereby, hydrogen after being used as regeneration gas can be supplied to the combustion device together with the first gas fuel and used as fuel. Therefore, it is possible to increase the proportion of hydrogen generated in the water electrolysis device that is not released and is used as fuel, and hydrogen loss can be reduced.
　なお、再生ガスとして用いられた後の水素は若干の水分（吸着剤から奪った水分）を含むが、第１ガス燃料と混合されることにより水分の濃度が低くなるため、コンプレッサ等に導入されたとしても、腐食等のリスクの要因となり難い。このため、上記（１）の構成によれば、再生ガスとして用いられた後の水素を燃料として使用することができる。 Note that hydrogen after being used as regeneration gas contains some moisture (moisture taken from the adsorbent), but the concentration of moisture decreases when mixed with the first gas fuel, so it is not introduced into a compressor, etc. Even if this happens, it is unlikely to cause risks such as corrosion. Therefore, according to the configuration (1) above, hydrogen after being used as regeneration gas can be used as fuel.
（２）幾つかの実施形態では、上記（１）の構成において、
　前記燃料供給装置は、
　前記再生ガス排出ラインに設けられ、前記除湿器から排出された前記再生ガスとしての水素を貯留するためのバッファタンク（２４）を備える。 (2) In some embodiments, in the configuration of (1) above,
The fuel supply device includes:
A buffer tank (24) is provided in the regeneration gas discharge line and for storing hydrogen as the regeneration gas discharged from the dehumidifier.
　除湿器の吸着材への再生ガスの供給は、間欠的に行われる場合がある。この点、上記（２）の構成によれば、除湿器から排出された再生ガスとしての水素をバッファタンクに貯留することができる。よって、吸着材への再生ガス（水素）の供給を間欠的に行う場合であっても、除湿器から排出後の再生ガスをバッファタンクに貯留しておくことで、燃料ラインへの再生ガス（水素）の供給量を調節しやすくなる。 The supply of regeneration gas to the adsorbent of the dehumidifier may be performed intermittently. In this regard, according to configuration (2) above, hydrogen as regeneration gas discharged from the dehumidifier can be stored in the buffer tank. Therefore, even if the regeneration gas (hydrogen) is intermittently supplied to the adsorbent, by storing the regeneration gas discharged from the dehumidifier in the buffer tank, the regeneration gas (hydrogen) can be supplied to the fuel line. This makes it easier to adjust the amount of hydrogen (hydrogen) supplied.
（３）幾つかの実施形態では、上記（２）の構成において、
　前記燃料供給装置は、
　前記バッファタンクの下流側における前記再生ガス排出ラインの圧力を調節するように構成された圧力調節部（２５）を備える。 (3) In some embodiments, in the configuration of (2) above,
The fuel supply device includes:
A pressure regulator (25) configured to regulate the pressure of the regeneration gas discharge line downstream of the buffer tank is provided.
　上記（３）の構成によれば、圧力調節部によって、バッファタンクの下流側における再生ガス排出ラインの圧力を調節することができる。これにより、燃料ラインへの再生ガス（水素）の供給量をより調節しやすくなる。 According to the configuration (3) above, the pressure of the regeneration gas discharge line on the downstream side of the buffer tank can be adjusted by the pressure adjustment section. This makes it easier to adjust the amount of regeneration gas (hydrogen) supplied to the fuel line.
（４）幾つかの実施形態では、上記（１）乃至（３）の何れかの構成において、
　前記水素ラインは、前記燃焼装置に、第２ガス燃料として前記除湿器で除湿された水素を供給するように構成される。 (4) In some embodiments, in any of the configurations (1) to (3) above,
The hydrogen line is configured to supply the combustion device with hydrogen dehumidified by the dehumidifier as a second gas fuel.
　上記（４）の構成によれば、除湿器で除湿された水素が第２ガス燃料として燃焼装置に供給されるとともに、除湿器で再生ガスとして使用された水素が第１ガス燃料とともに燃焼装置に供給される。したがって、水電解装置で生成された水素の殆ど全量を燃焼装置に供給することが可能となり、水素の損失を低減することができる。 According to the configuration (4) above, hydrogen dehumidified by the dehumidifier is supplied to the combustion device as the second gas fuel, and hydrogen used as regeneration gas in the dehumidifier is supplied to the combustion device together with the first gas fuel. Supplied. Therefore, it becomes possible to supply almost the entire amount of hydrogen generated in the water electrolysis device to the combustion device, and hydrogen loss can be reduced.
（５）本発明の少なくとも一実施形態に係る燃焼設備（１００）は、
　燃焼装置（５０）と、
　前記燃焼装置に前記第１ガス燃料を供給するための前記燃料ライン（２８）と、
　上記（１）乃至（４）の何れか一項に記載の燃料供給装置（１０）と、
を備え、
　前記燃料供給装置の前記再生ガス排出ライン（２２）は、前記燃料ラインに接続される。 (5) The combustion equipment (100) according to at least one embodiment of the present invention includes:
a combustion device (50);
the fuel line (28) for supplying the first gas fuel to the combustion device;
The fuel supply device (10) according to any one of (1) to (4) above;
Equipped with
The regeneration gas exhaust line (22) of the fuel supply device is connected to the fuel line.
　上記（５）の構成によれば、水電解装置で生成された水素を除湿するための除湿器において、吸着材を再生するための再生ガスとして使用された後の水分を含む水素を、再生ガス排出ラインを介して燃料ラインに供給して、第１ガス燃料に混入させる。これにより、再生ガスとして使用した後の水素を、第１ガス燃料とともに燃焼装置に供給して燃料として使用することができる。よって、水電解装置で生成された水素のうち、放出されずに燃料として使用される分の割合を高めることができ、水素の損失を低減することができる。 According to the configuration (5) above, in a dehumidifier for dehumidifying hydrogen generated in a water electrolysis device, hydrogen containing moisture after being used as a regeneration gas for regenerating an adsorbent is converted into a regeneration gas. It is supplied to the fuel line via the exhaust line to mix with the first gaseous fuel. Thereby, hydrogen after being used as regeneration gas can be supplied to the combustion device together with the first gas fuel and used as fuel. Therefore, it is possible to increase the proportion of hydrogen generated in the water electrolysis device that is not released and is used as fuel, and hydrogen loss can be reduced.
（６）幾つかの実施形態では、上記（５）の構成において、
　前記燃焼設備は、
　前記燃料ラインに設けられ、前記第１ガス燃料を昇圧するための圧縮機（３０）を備え、
　前記再生ガス排出ラインは、前記圧縮機よりも上流側にて前記燃料ラインに接続される。 (6) In some embodiments, in the configuration of (5) above,
The combustion equipment includes:
a compressor (30) provided in the fuel line for pressurizing the first gas fuel;
The regeneration gas discharge line is connected to the fuel line upstream of the compressor.
　上記（６）の構成では、除湿器からの再生ガスは圧縮機よりも上流側にて燃料ラインに供給されるので、第１ガス燃料と再生ガス（水分を伴う水素）との混合物が圧縮機に供給される。ここで、再生ガス中に含まれる水分の濃度は、再生ガスと第１ガス燃料とが混合されることにより低くなるため、圧縮機において腐食が生じにくい。よって、上記（６）の構成では、圧縮機での腐食のリスクを低減しながら、再生ガスとして使用された水素を、燃料として燃焼装置に供給することができる。 In the configuration (6) above, the regeneration gas from the dehumidifier is supplied to the fuel line upstream of the compressor, so the mixture of the first gas fuel and the regeneration gas (hydrogen with moisture) is supplied to the compressor. is supplied to Here, since the concentration of moisture contained in the regeneration gas is lowered by mixing the regeneration gas and the first gas fuel, corrosion is less likely to occur in the compressor. Therefore, with the configuration (6) above, hydrogen used as regeneration gas can be supplied to the combustion device as fuel while reducing the risk of corrosion in the compressor.
（７）幾つかの実施形態では、上記（５）又は（６）の構成において、
　前記燃焼装置は、ガスタービンを含む。 (7) In some embodiments, in the configuration of (5) or (6) above,
The combustion device includes a gas turbine.
　上記（７）の構成によれば、水電解装置で生成された水素を除湿するための除湿器において、吸着材を再生するための再生ガスとして使用された後の水分を含む水素を、再生ガス排出ラインを介して燃料ラインに供給して、第１ガス燃料に混入させる。これにより、再生ガスとして使用した後の水素を、第１ガス燃料とともにガスタービンに供給して燃料として使用することができる。よって、水電解装置で生成された水素のうち、放出されずに燃料として使用される分の割合を高めることができ、水素の損失を低減することができる。 According to the configuration (7) above, in a dehumidifier for dehumidifying hydrogen generated by a water electrolysis device, hydrogen containing moisture after being used as a regeneration gas for regenerating an adsorbent is converted into a regeneration gas. It is supplied to the fuel line via the exhaust line to mix with the first gaseous fuel. Thereby, hydrogen after being used as regeneration gas can be supplied to the gas turbine together with the first gas fuel and used as fuel. Therefore, it is possible to increase the proportion of hydrogen generated in the water electrolysis device that is not released and is used as fuel, and hydrogen loss can be reduced.
　以上、本発明の実施形態について説明したが、本発明は上述した実施形態に限定されることはなく、上述した実施形態に変形を加えた形態や、これらの形態を適宜組み合わせた形態も含む。 Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and also includes forms in which modifications are made to the above-described embodiments and forms in which these forms are appropriately combined.
　本明細書において、「ある方向に」、「ある方向に沿って」、「平行」、「直交」、「中心」、「同心」或いは「同軸」等の相対的或いは絶対的な配置を表す表現は、厳密にそのような配置を表すのみならず、公差、若しくは、同じ機能が得られる程度の角度や距離をもって相対的に変位している状態も表すものとする。
　例えば、「同一」、「等しい」及び「均質」等の物事が等しい状態であることを表す表現は、厳密に等しい状態を表すのみならず、公差、若しくは、同じ機能が得られる程度の差が存在している状態も表すものとする。
　また、本明細書において、四角形状や円筒形状等の形状を表す表現は、幾何学的に厳密な意味での四角形状や円筒形状等の形状を表すのみならず、同じ効果が得られる範囲で、凹凸部や面取り部等を含む形状も表すものとする。
　また、本明細書において、一の構成要素を「備える」、「含む」、又は、「有する」という表現は、他の構成要素の存在を除外する排他的な表現ではない。 In this specification, expressions expressing relative or absolute arrangement such as "in a certain direction", "along a certain direction", "parallel", "perpendicular", "center", "concentric", or "coaxial" are used. shall not only strictly represent such an arrangement, but also represent a state in which they are relatively displaced with a tolerance or an angle or distance that allows the same function to be obtained.
For example, expressions such as "same,""equal," and "homogeneous" that indicate that things are in an equal state do not only mean that things are exactly equal, but also have tolerances or differences in the degree to which the same function can be obtained. It also represents the existing state.
In addition, in this specification, expressions expressing shapes such as a square shape or a cylindrical shape do not only mean shapes such as a square shape or a cylindrical shape in a strict geometric sense, but also within the range where the same effect can be obtained. , shall also represent shapes including uneven parts, chamfered parts, etc.
Furthermore, in this specification, the expressions "comprising,""including," or "having" one component are not exclusive expressions that exclude the presence of other components.
１０　　燃料供給装置
１１　　水電解装置
１２　　水素ライン
１４　　除湿器
１６　　圧縮機
１８　　貯留部
２０　　再生ガス供給ライン
２２　　再生ガス排出ライン
２４　　バッファタンク
２５　　圧力調節部
２６　　圧力調整バルブ
２８　　燃料ライン
３０　　圧縮機
５０　　燃焼装置
５２　　圧縮機
５４　　燃焼器
５６　　タービン
１００　燃焼設備 10 Fuel supply device 11 Water electrolysis device 12 Hydrogen line 14 Dehumidifier 16 Compressor 18 Storage section 20 Regeneration gas supply line 22 Regeneration gas discharge line 24 Buffer tank 25 Pressure adjustment section 26 Pressure adjustment valve 28 Fuel line 30 Compressor 50 Combustion device 52 Compressor 54 Combustor 56 Turbine 100 Combustion equipment

Claims (7)

  1. 　水電解装置と、
    　前記水電解装置からの水素が流れる水素ラインに設けられ、前記水素に含まれる水分を吸着するための吸着材を含む除湿器と、
    　前記除湿器の下流側にて前記水素ラインから分岐するとともに、前記吸着材を再生するための再生ガスとして前記除湿器で除湿された水素の一部を前記除湿器に供給するように構成された再生ガス供給ラインと、
    　前記再生ガス供給ラインを介して前記除湿器に供給された前記再生ガスとしての水素を前記除湿器から排出するための再生ガス排出ラインと、
    を備え、
    　前記再生ガス排出ラインは、燃焼装置に第１ガス燃料を供給するための燃料ラインに接続されるように構成された
    燃料供給装置。     a water electrolysis device;
    a dehumidifier that is installed in a hydrogen line through which hydrogen from the water electrolysis device flows and includes an adsorbent for adsorbing moisture contained in the hydrogen;
    The hydrogen line is branched from the hydrogen line downstream of the dehumidifier, and is configured to supply a portion of the hydrogen dehumidified by the dehumidifier to the dehumidifier as regeneration gas for regenerating the adsorbent. a regeneration gas supply line;
    a regeneration gas discharge line for discharging hydrogen as the regeneration gas supplied to the dehumidifier via the regeneration gas supply line from the dehumidifier;
    Equipped with
    The regeneration gas discharge line is a fuel supply device configured to be connected to a fuel line for supplying a first gas fuel to the combustion device.
  2. 　前記再生ガス排出ラインに設けられ、前記除湿器から排出された前記再生ガスとしての水素を貯留するためのバッファタンクを備える
    請求項１に記載の燃料供給装置。     The fuel supply device according to claim 1, further comprising a buffer tank provided in the regeneration gas discharge line and for storing hydrogen as the regeneration gas discharged from the dehumidifier.
  3. 　前記バッファタンクの下流側における前記再生ガス排出ラインの圧力を調節するように構成された圧力調節部を備える
    請求項２に記載の燃料供給装置。     The fuel supply device according to claim 2, further comprising a pressure adjustment section configured to adjust the pressure of the regeneration gas discharge line downstream of the buffer tank.
  4. 　前記水素ラインは、前記燃焼装置に、第２ガス燃料として前記除湿器で除湿された水素を供給するように構成された
    請求項１乃至３の何れか一項に記載の燃料供給装置。     The fuel supply device according to any one of claims 1 to 3, wherein the hydrogen line is configured to supply hydrogen dehumidified by the dehumidifier as a second gas fuel to the combustion device.
  5. 　燃焼装置と、
    　前記燃焼装置に前記第１ガス燃料を供給するための前記燃料ラインと、
    　請求項１乃至３の何れか一項に記載の燃料供給装置と、
    を備え、
    　前記燃料供給装置の前記再生ガス排出ラインは、前記燃料ラインに接続される
    燃焼設備。     a combustion device;
    the fuel line for supplying the first gas fuel to the combustion device;
    The fuel supply device according to any one of claims 1 to 3,
    Equipped with
    The regeneration gas discharge line of the fuel supply device is a combustion facility connected to the fuel line.
  6. 　前記燃料ラインに設けられ、前記第１ガス燃料を昇圧するための圧縮機を備え、
    　前記再生ガス排出ラインは、前記圧縮機よりも上流側にて前記燃料ラインに接続される
    請求項５に記載の燃焼設備。     a compressor provided in the fuel line for pressurizing the first gas fuel;
    The combustion equipment according to claim 5, wherein the regeneration gas discharge line is connected to the fuel line upstream of the compressor.
  7. 　前記燃焼装置は、ガスタービンを含む
    請求項５に記載の燃焼設備。     The combustion equipment according to claim 5, wherein the combustion device includes a gas turbine.
PCT/JP2023/024707 2022-07-13 2023-07-04 Fuel supply apparatus and combustion facility WO2024014349A1 (en)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009041496A (en) * 2007-08-10 2009-02-26 Mitsubishi Heavy Ind Ltd Gas turbine device
JP2010209235A (en) * 2009-03-11 2010-09-24 Mitsubishi Heavy Ind Ltd Method for refining coal-gasified gas and system therefor
JP2020182894A (en) * 2019-05-07 2020-11-12 日立造船株式会社 Dehumidifier system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009041496A (en) * 2007-08-10 2009-02-26 Mitsubishi Heavy Ind Ltd Gas turbine device
JP2010209235A (en) * 2009-03-11 2010-09-24 Mitsubishi Heavy Ind Ltd Method for refining coal-gasified gas and system therefor
JP2020182894A (en) * 2019-05-07 2020-11-12 日立造船株式会社 Dehumidifier system

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