CN115013720B - Hydrogen production and hydrogenation station for methanol - Google Patents
Hydrogen production and hydrogenation station for methanol Download PDFInfo
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- CN115013720B CN115013720B CN202210695342.4A CN202210695342A CN115013720B CN 115013720 B CN115013720 B CN 115013720B CN 202210695342 A CN202210695342 A CN 202210695342A CN 115013720 B CN115013720 B CN 115013720B
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- hydrogen
- methanol
- hydrogenation
- pressure
- heat exchange
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- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 title claims abstract description 477
- 239000001257 hydrogen Substances 0.000 title claims abstract description 405
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 405
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 399
- 238000005984 hydrogenation reaction Methods 0.000 title claims abstract description 170
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 88
- 238000003860 storage Methods 0.000 claims abstract description 148
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 27
- 229910001868 water Inorganic materials 0.000 claims abstract description 27
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 17
- 239000001301 oxygen Substances 0.000 claims abstract description 17
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 17
- 238000000746 purification Methods 0.000 claims abstract description 11
- 239000000446 fuel Substances 0.000 claims description 21
- 239000007789 gas Substances 0.000 claims description 16
- 238000000034 method Methods 0.000 claims description 13
- 238000001816 cooling Methods 0.000 claims description 12
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 8
- 238000006243 chemical reaction Methods 0.000 claims description 8
- 239000006200 vaporizer Substances 0.000 claims description 7
- 150000002431 hydrogen Chemical class 0.000 claims description 6
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 4
- 239000001569 carbon dioxide Substances 0.000 claims description 4
- VUZPPFZMUPKLLV-UHFFFAOYSA-N methane;hydrate Chemical compound C.O VUZPPFZMUPKLLV-UHFFFAOYSA-N 0.000 claims description 4
- 239000007788 liquid Substances 0.000 abstract description 8
- 238000009826 distribution Methods 0.000 abstract description 3
- 238000005429 filling process Methods 0.000 abstract description 3
- 230000010354 integration Effects 0.000 abstract description 3
- 230000002349 favourable effect Effects 0.000 abstract 1
- 239000002994 raw material Substances 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C5/00—Methods or apparatus for filling containers with liquefied, solidified, or compressed gases under pressures
- F17C5/06—Methods or apparatus for filling containers with liquefied, solidified, or compressed gases under pressures for filling with compressed gases
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B3/00—Hydrogen; Gaseous mixtures containing hydrogen; Separation of hydrogen from mixtures containing it; Purification of hydrogen
- C01B3/02—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen
- C01B3/32—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C13/00—Details of vessels or of the filling or discharging of vessels
- F17C13/002—Details of vessels or of the filling or discharging of vessels for vessels under pressure
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B2203/00—Integrated processes for the production of hydrogen or synthesis gas
- C01B2203/08—Methods of heating or cooling
- C01B2203/0805—Methods of heating the process for making hydrogen or synthesis gas
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B2203/00—Integrated processes for the production of hydrogen or synthesis gas
- C01B2203/12—Feeding the process for making hydrogen or synthesis gas
- C01B2203/1205—Composition of the feed
- C01B2203/1211—Organic compounds or organic mixtures used in the process for making hydrogen or synthesis gas
- C01B2203/1217—Alcohols
- C01B2203/1223—Methanol
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B2203/00—Integrated processes for the production of hydrogen or synthesis gas
- C01B2203/12—Feeding the process for making hydrogen or synthesis gas
- C01B2203/1288—Evaporation of one or more of the different feed components
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2221/00—Handled fluid, in particular type of fluid
- F17C2221/01—Pure fluids
- F17C2221/012—Hydrogen
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
- F17C2223/03—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the pressure level
- F17C2223/036—Very high pressure (>80 bar)
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2227/00—Transfer of fluids, i.e. method or means for transferring the fluid; Heat exchange with the fluid
- F17C2227/01—Propulsion of the fluid
- F17C2227/0128—Propulsion of the fluid with pumps or compressors
- F17C2227/0157—Compressors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2227/00—Transfer of fluids, i.e. method or means for transferring the fluid; Heat exchange with the fluid
- F17C2227/03—Heat exchange with the fluid
- F17C2227/0337—Heat exchange with the fluid by cooling
- F17C2227/0341—Heat exchange with the fluid by cooling using another fluid
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2227/00—Transfer of fluids, i.e. method or means for transferring the fluid; Heat exchange with the fluid
- F17C2227/03—Heat exchange with the fluid
- F17C2227/0337—Heat exchange with the fluid by cooling
- F17C2227/0341—Heat exchange with the fluid by cooling using another fluid
- F17C2227/0353—Heat exchange with the fluid by cooling using another fluid using cryocooler
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
- F17C2250/01—Intermediate tanks
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2265/00—Effects achieved by gas storage or gas handling
- F17C2265/01—Purifying the fluid
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2270/00—Applications
- F17C2270/01—Applications for fluid transport or storage
- F17C2270/0165—Applications for fluid transport or storage on the road
- F17C2270/0168—Applications for fluid transport or storage on the road by vehicles
- F17C2270/0178—Cars
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2270/00—Applications
- F17C2270/01—Applications for fluid transport or storage
- F17C2270/0165—Applications for fluid transport or storage on the road
- F17C2270/0184—Fuel cells
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/32—Hydrogen storage
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Combustion & Propulsion (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Hydrogen, Water And Hydrids (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
- Fuel Cell (AREA)
Abstract
The invention discloses a hydrogen production and hydrogenation station for methanol, which comprises a low-temperature methanol storage tank, an oxygen storage tank, a water tank, a methanol comprehensive heat exchange module, a methanol hydrogen production device, a hydrogen purification device, a hydrogen buffer tank, a hydrogen storage compressor, a hydrogen low-pressure storage tank, a hydrogenation compressor, a hydrogen medium-pressure storage tank, a 35MPa hydrogenation machine, a high-pressure hydrogenation compressor, a hydrogen high-pressure storage tank and a 70MPa hydrogenation machine. The invention has the advantages that: (1) The hydrogen production and hydrogen adding station of the methanol can realize the on-site hydrogen production of the hydrogen adding station, has lower hydrogen production cost, can well solve the problem that the uneven distribution of hydrogen sources affects the layout of the hydrogen adding station, and saves the transportation cost; (2) The methanol is in a liquid state at normal temperature and normal pressure, the energy density is high, the storage condition is identical, and the requirements on a pipeline and a valve in the filling process are low; (3) The hydrogen production and hydrogenation cost is low, which is favorable for market popularization of hydrogen energy; (4) The low-temperature methanol, the cold energy and the hydrogenation system are coupled, so that the integration level and the utilization efficiency of the system are improved.
Description
Technical Field
The invention relates to the technical field of hydrogen energy, in particular to a hydrogen production and hydrogenation station for methanol.
Background
At present, hydrogen production and hydrogenation are different in hydrogen consumption, and the transportation of the hydrogen is involved, so that the cost of the hydrogen is greatly increased by long tube trailer or pipeline transportation, the volume density of the hydrogen is reduced, and the efficiency is lower during transportation; if liquid hydrogen is adopted for transportation, the hydrogen liquefaction cost is high, the storage condition of the liquid hydrogen is extremely harsh, and the requirements of pipelines and valve elements for transporting and filling the liquid hydrogen are very high. Therefore, the invention of the hydrogen production and hydrogenation integrated station with low cost and easy storage is needed.
Disclosure of Invention
The invention aims to provide a methanol hydrogen production hydrogenation station which is low in cost and easy to store.
In order to achieve the above purpose, the invention adopts the following technical scheme: the hydrogen production and hydrogenation station for the methanol comprises a low-temperature methanol storage tank, an oxygen storage tank, a water tank, a methanol comprehensive heat exchange module, a methanol hydrogen production device, a hydrogen purification device, a hydrogen buffer tank, a hydrogen storage compressor, a hydrogen low-pressure storage tank, a hydrogenation compressor, a hydrogen medium-pressure storage tank, a 35MPa hydrogenation machine, a high-pressure hydrogenation compressor, a hydrogen high-pressure storage tank and a 70MPa hydrogenation machine;
the low-temperature methanol storage tank is connected with the methanol comprehensive heat exchange module, and the low-temperature methanol storage tank conveys low-temperature methanol to the methanol comprehensive heat exchange module;
the methanol comprehensive heat exchange module is connected with the methanol hydrogen production device and is used for converting low-temperature methanol into gaseous methanol and conveying the gaseous methanol to the methanol hydrogen production device; the oxygen storage tank is connected with the methanol hydrogen production device and is used for conveying oxygen to the methanol hydrogen production device; the water tank is connected with the methanol hydrogen production device and is used for conveying water required by hydrogen production reaction to the methanol hydrogen production device;
the methanol hydrogen production device can react one part of the input gaseous methanol with the input oxygen to provide proper pressure and temperature for hydrogen production reaction, and can react the other part of the input gaseous methanol with the input water to prepare crude hydrogen containing hydrogen, carbon dioxide and water;
the methanol hydrogen production device is connected with a hydrogen buffer tank through a hydrogen purification device, and the hydrogen purification device purifies crude hydrogen output by the methanol hydrogen production device into qualified hydrogen with the hydrogen pressure of 2-5 MPa and inputs the qualified hydrogen into the hydrogen buffer tank; the hydrogen buffer tank is used for collecting and storing qualified hydrogen with the pressure of 2-5 MPa;
the hydrogen buffer tank is connected with a hydrogen low-pressure storage tank through a hydrogen storage compressor, the hydrogen storage compressor pressurizes 2-5 MPa qualified hydrogen in the hydrogen buffer tank into 20MPa qualified hydrogen and inputs the 20MPa qualified hydrogen into the hydrogen low-pressure storage tank, and the hydrogen low-pressure storage tank is used for storing the 20MPa qualified hydrogen;
the hydrogen low-pressure storage tank is connected with the hydrogen medium-pressure storage tank through a hydrogenation compressor, the hydrogenation compressor pressurizes the 20MPa qualified hydrogen in the hydrogen low-pressure storage tank into 45MPa qualified hydrogen and inputs the 45MPa qualified hydrogen into the hydrogen medium-pressure storage tank, and the hydrogen medium-pressure storage tank is used for storing the 45MPa qualified hydrogen;
the hydrogen medium-pressure storage tank is connected with a 35MPa hydrogenation machine, and the 35MPa hydrogenation machine is used for decompressing the 45MPa qualified hydrogen in the hydrogen medium-pressure storage tank into 35MPa qualified hydrogen and conveying the 35MPa qualified hydrogen into a gas storage bottle of the fuel cell automobile; meanwhile, the hydrogen medium-pressure storage tank is connected with a hydrogen high-pressure storage tank through a high-pressure hydrogenation compressor, and the high-pressure hydrogenation compressor pressurizes 45MPa qualified hydrogen in the hydrogen medium-pressure storage tank into 85-90 MPa qualified hydrogen and inputs the hydrogen into the hydrogen high-pressure storage tank; the hydrogen high-pressure storage tank is used for storing qualified hydrogen with the pressure of 85-90 MPa;
the hydrogen high-pressure storage tank is connected with a 70MPa hydrogenation machine, and the 70MPa hydrogenation machine is used for decompressing the qualified hydrogen with the pressure of 85-90 MPa in the hydrogen high-pressure storage tank into the qualified hydrogen with the pressure of 70MPa and conveying the qualified hydrogen into a gas storage bottle of the fuel cell automobile.
Further, the aforementioned methanol hydrogen production and hydrogenation station, wherein: the low-temperature methanol storage tank is also connected with the methanol hydrogen production device through a vaporizer, and the vaporizer can convert low-temperature methanol into gaseous methanol and convey the gaseous methanol to the methanol hydrogen production device.
Further, the aforementioned methanol hydrogen production and hydrogenation station, wherein: the hydrogen storage compressor is connected with a hydrogen storage compressor heat exchange module, and the hydrogen storage compressor heat exchange module is used for preventing the hydrogen storage compressor from losing efficacy due to overhigh temperature in the hydrogen pressurization process and simultaneously cooling the pressurized hydrogen; the hydrogenation compressor is connected with a hydrogen storage compressor heat exchange module, and the hydrogenation compressor heat exchange module is used for preventing the hydrogenation compressor from losing efficacy due to overhigh temperature in the process of pressurizing hydrogen and simultaneously cooling the pressurized hydrogen; the 35MPa hydrogenation machine is connected with a 35MPa hydrogenation machine heat exchange module, and the 35MPa hydrogenation machine heat exchange module is used for controlling the temperature of the hydrogen before the fuel cell car is added.
Further, the aforementioned methanol hydrogen production and hydrogenation station, wherein: the high-pressure hydrogenation compressor is connected with a high-pressure hydrogenation compressor heat exchange module, and the high-pressure hydrogenation compressor heat exchange module is used for preventing the high-pressure hydrogenation compressor from losing efficacy due to overhigh temperature in the process of pressurizing hydrogen and simultaneously cooling the pressurized hydrogen; the 70MPa hydrogenation machine is connected with a 70MPa hydrogenation machine heat exchange module, and the 70MPa hydrogenation machine heat exchange module is used for controlling the temperature of the hydrogen before the fuel cell car is added.
Further, the aforementioned methanol hydrogen production and hydrogenation station, wherein: the methanol comprehensive heat exchange module is connected with the hydrogen storage compressor heat exchange module, the hydrogenation compressor heat exchange module, the 35MPa hydrogenation machine heat exchange module, the high-pressure hydrogenation compressor heat exchange module and the 70MPa hydrogenation machine heat exchange module at the same time, and can provide cold energy for the hydrogen storage compressor heat exchange module, the hydrogenation compressor heat exchange module, the 35MPa hydrogenation machine heat exchange module, the high-pressure hydrogenation compressor heat exchange module and the 70MPa hydrogenation machine heat exchange module.
Further, the aforementioned methanol hydrogen production and hydrogenation station, wherein: the heat exchange module of the hydrogen storage compressor, the heat exchange module of the hydrogenation compressor, the heat exchange module of the 35MPa hydrogenation machine, the heat exchange module of the high-pressure hydrogenation compressor and the heat exchange module of the 70MPa hydrogenation machine are respectively connected with a refrigerator for providing standby cold energy.
Further, the aforementioned methanol hydrogen production and hydrogenation station, wherein: the system also comprises a 20MPa high-pressure hydrogen gas cylinder vehicle, wherein the 20MPa high-pressure hydrogen gas cylinder vehicle is used for transporting outsourced 20MPa qualified hydrogen to a methanol hydrogen production hydrogenation station and can be connected with a hydrogenation compressor.
Further, the aforementioned methanol hydrogen production and hydrogenation station, wherein: the device also comprises a tail gas treatment device which can treat the tail gas of the methanol hydrogen production device.
Through implementation of the technical scheme, the invention has the beneficial effects that: (1) The hydrogen production and hydrogen adding station of the methanol can realize the on-site hydrogen production of the hydrogen adding station, has lower hydrogen production cost, can well solve the problem that the uneven distribution of hydrogen sources affects the layout of the hydrogen adding station, and saves the transportation cost; (2) The methanol is in a liquid state at normal temperature and normal pressure, the energy density is high, the storage condition is identical, and the requirements on a pipeline and a valve in the filling process are low; (3) The hydrogen production and hydrogenation integrated design has small cost requirements, and is beneficial to market popularization of hydrogen energy; (4) The low-temperature methanol, the cold energy and the hydrogenation system are coupled, so that the integration level and the utilization efficiency of the system are improved.
Drawings
FIG. 1 is a schematic diagram of the working principle of the hydrogen production and hydrogenation station for methanol according to the invention. A schematic structural diagram.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent.
As shown in fig. 1, the hydrogen production and hydrogenation station for methanol comprises a low-temperature methanol storage tank 1, an oxygen storage tank 2, a water tank 3, a comprehensive methanol heat exchange module 4, a hydrogen production device 5 for methanol, a hydrogen purification device 6, a hydrogen buffer tank 7, a hydrogen storage compressor 8, a low-pressure hydrogen storage tank 9, a hydrogenation compressor 10, a medium-pressure hydrogen storage tank 11, a 35MPa hydrogenation machine 12, a high-pressure hydrogenation compressor 13, a high-pressure hydrogen storage tank 14 and a 70MPa hydrogenation machine 15;
the low-temperature methanol storage tank 1 is connected with the methanol comprehensive heat exchange module 4, and the low-temperature methanol storage tank 1 is used for conveying low-temperature methanol to the methanol comprehensive heat exchange module 4;
the methanol comprehensive heat exchange module 4 is connected with the methanol hydrogen production device 5, and the methanol comprehensive heat exchange module 4 is used for converting low-temperature methanol into gaseous methanol and conveying the gaseous methanol to the methanol hydrogen production device 5; the oxygen storage tank 2 is connected with the methanol hydrogen production device 5, and the oxygen storage tank 2 is used for conveying oxygen to the methanol hydrogen production device 5; the water tank 3 is connected with the methanol hydrogen production device 5, and the water tank 3 is used for conveying water required by hydrogen production reaction to the methanol hydrogen production device 5;
the methanol hydrogen production device 5 can react part of the input gaseous methanol with the input oxygen to provide proper pressure and temperature for hydrogen production reaction, and the methanol hydrogen production device 5 can react the other part of the input gaseous methanol with the input water to prepare and generate crude hydrogen containing hydrogen, carbon dioxide and water;
the methanol hydrogen production device 5 is connected with a hydrogen buffer tank 7 through a hydrogen purification device 6, and the hydrogen purification device 6 purifies crude hydrogen output by the methanol hydrogen production device 5 into qualified hydrogen with the hydrogen pressure of 2-5 MPa and inputs the qualified hydrogen into the hydrogen buffer tank 7; the hydrogen buffer tank 7 is used for collecting and storing qualified hydrogen of 2-5 MPa;
the hydrogen buffer tank 7 is connected with a hydrogen low-pressure storage tank 9 through a hydrogen storage compressor 8, the hydrogen storage compressor 8 pressurizes 2-5 MPa qualified hydrogen in the hydrogen buffer tank 7 into 20MPa qualified hydrogen and inputs the 20MPa qualified hydrogen into the hydrogen low-pressure storage tank 9, and the hydrogen low-pressure storage tank 9 is used for storing the 20MPa qualified hydrogen;
the hydrogen low-pressure storage tank 9 is connected with the hydrogen medium-pressure storage tank 11 through the hydrogenation compressor 10, the hydrogenation compressor 10 pressurizes the 20MPa qualified hydrogen in the hydrogen low-pressure storage tank 9 into 45MPa qualified hydrogen and inputs the 45MPa qualified hydrogen into the hydrogen medium-pressure storage tank 11, and the hydrogen medium-pressure storage tank 11 is used for storing the 45MPa qualified hydrogen;
the hydrogen medium pressure storage tank 11 is connected with a 35MPa hydrogenation machine 12, and the 35MPa hydrogenation machine 12 is used for decompressing the 45MPa qualified hydrogen in the hydrogen medium pressure storage tank 11 into 35MPa qualified hydrogen and conveying the 35MPa qualified hydrogen into a gas storage bottle of a fuel cell automobile; meanwhile, the hydrogen medium-pressure storage tank 11 is connected with the hydrogen high-pressure storage tank 14 through the high-pressure hydrogenation compressor 13, and the high-pressure hydrogenation compressor 13 pressurizes 45MPa qualified hydrogen in the hydrogen medium-pressure storage tank 11 into 85-90 MPa qualified hydrogen and inputs the qualified hydrogen into the hydrogen high-pressure storage tank 14; the hydrogen high-pressure storage tank 14 is used for storing qualified hydrogen with the pressure of 85-90 MPa;
the hydrogen high-pressure storage tank 14 is connected with a 70MPa hydrogenation machine 15, and the 70MPa hydrogenation machine 15 is used for decompressing 85-90 MPa qualified hydrogen in the hydrogen high-pressure storage tank 14 into 70MPa qualified hydrogen and conveying the 70MPa qualified hydrogen into a gas storage bottle of a fuel cell automobile;
in this embodiment, the low-temperature methanol storage tank 1 is further connected to the methanol-to-hydrogen device 5 through the vaporizer 16, the vaporizer 16 can convert low-temperature methanol into gaseous methanol and convey the gaseous methanol to the methanol-to-hydrogen device 5, when the amount of the gaseous methanol supplied to the methanol-to-hydrogen device 5 by the methanol comprehensive heat exchange module 4 is insufficient, the vaporizer 16 can supplement sufficient amount of gaseous methanol to the methanol-to-hydrogen device 5, so that the use stability and the use safety of the equipment are improved;
in this embodiment, the hydrogen storage compressor 8 is connected with a hydrogen storage compressor heat exchange module 81, and the hydrogen storage compressor heat exchange module 81 is used for preventing the hydrogen storage compressor 8 from losing efficacy due to too high temperature in the process of pressurizing hydrogen, and cooling the pressurized hydrogen at the same time; the hydrogenation compressor 10 is connected with a hydrogen storage compressor heat exchange module 101, and the hydrogenation compressor heat exchange module 101 is used for preventing the hydrogenation compressor 10 from losing efficacy due to overhigh temperature in the process of pressurizing hydrogen and simultaneously cooling the pressurized hydrogen; the 35MPa hydrogenation machine 12 is connected with a 35MPa hydrogenation machine heat exchange module 121, and the 35MPa hydrogenation machine heat exchange module 121 is used for controlling the temperature of the hydrogen before the fuel cell car is added; the high-pressure hydrogenation compressor 13 is connected with a high-pressure hydrogenation compressor heat exchange module 131, and the high-pressure hydrogenation compressor heat exchange module 131 is used for preventing the high-pressure hydrogenation compressor 13 from losing efficacy due to overhigh temperature in the process of pressurizing hydrogen and simultaneously cooling the pressurized hydrogen; the 70MPa hydrogenation machine 15 is connected with a 70MPa hydrogenation machine heat exchange module 151, and the 70MPa hydrogenation machine heat exchange module 151 is used for controlling the temperature of the hydrogen before the fuel cell car is added;
in this embodiment, the methanol comprehensive heat exchange module 4 is connected with the hydrogen storage compressor heat exchange module 81, the hydrogenation compressor heat exchange module 101, the 35MPa hydrogenation machine heat exchange module 121, the high-pressure hydrogenation compressor heat exchange module 131 and the 70MPa hydrogenation machine heat exchange module 151 at the same time, the methanol comprehensive heat exchange module 4 provides cold energy for the hydrogen storage compressor heat exchange module 81, the hydrogenation compressor heat exchange module 101, the 35MPa hydrogenation machine heat exchange module 121, the high-pressure hydrogenation compressor heat exchange module 131 and the 70MPa hydrogenation machine heat exchange module 151, and the use efficiency of the system is improved;
in this embodiment, the hydrogen storage compressor heat exchange module 81, the hydrogenation compressor heat exchange module 101, the 35MPa hydrogenation machine heat exchange module 121, the high pressure hydrogenation compressor heat exchange module 131 and the 70MPa hydrogenation machine heat exchange module 151 are respectively connected with a refrigerator 17 for providing standby cold energy; in the embodiment, the hydrogen production system also comprises a 20MPa high-pressure hydrogen gas cylinder car 18, wherein the 20MPa high-pressure hydrogen gas cylinder car 18 is used for transporting outsourced 20MPa qualified hydrogen to a methanol hydrogen production hydrogenation station and can be connected with the hydrogenation compressor 10; in this embodiment, the apparatus further comprises an exhaust gas treatment device 19 capable of treating the exhaust gas of the methanol hydrogen production device 5;
the working principle of the invention is as follows:
the hydrogenation process for the gas cylinder of the 35MPa fuel cell automobile is as follows: the low-temperature methanol storage tank 1 is used for conveying low-temperature methanol to the methanol comprehensive heat exchange module 4, and the methanol comprehensive heat exchange module 4 is used for converting the low-temperature methanol into gaseous methanol and conveying the gaseous methanol to the methanol hydrogen production device 5; simultaneously, the oxygen storage tank 2 conveys oxygen to the methanol hydrogen production device 5, and the water tank 3 conveys water required by hydrogen production reaction to the methanol hydrogen production device 5; the methanol hydrogen production device 5 reacts part of the input gaseous methanol with the input oxygen to provide proper pressure and temperature for hydrogen production reaction, and simultaneously reacts the other part of the input gaseous methanol with the input water to prepare and generate crude hydrogen containing hydrogen, carbon dioxide and water, and the hydrogen purification device 6 purifies the crude hydrogen output by the methanol hydrogen production device 5 into qualified hydrogen with the hydrogen pressure of 2-5 MPa and inputs the qualified hydrogen into the hydrogen buffer tank 7; the hydrogen storage compressor 8 pressurizes 2-5 MPa qualified hydrogen in the hydrogen buffer tank 7 into 20MPa qualified hydrogen and inputs the hydrogen into the hydrogen low-pressure storage tank 9, then the hydrogen compressor 10 pressurizes the 20MPa qualified hydrogen in the hydrogen low-pressure storage tank 9 into 45MPa qualified hydrogen and inputs the 45MPa qualified hydrogen into the hydrogen medium-pressure storage tank 11, and the 35MPa hydrogenation machine 12 is used for decompressing the 45MPa qualified hydrogen in the hydrogen medium-pressure storage tank 11 into 35MPa qualified hydrogen and delivering the 35MPa qualified hydrogen into a gas storage bottle of the 35MPa fuel cell automobile;
the hydrogenation process for the gas cylinder of the 70MPa fuel cell automobile is as follows: the high-pressure hydrogenation compressor 13 pressurizes the 45MPa qualified hydrogen in the hydrogen medium-pressure storage tank 11 into 85-90 MPa qualified hydrogen and inputs the hydrogen into the hydrogen high-pressure storage tank 14, and then the 70MPa hydrogenation machine 15 is used for decompressing the 85-90 MPa qualified hydrogen in the hydrogen high-pressure storage tank 14 into 70MPa qualified hydrogen and conveying the 70MPa qualified hydrogen into a gas storage bottle of a 70MPa fuel cell automobile;
in the hydrogenation process, the comprehensive methanol heat exchange module 4 provides the cold energy of low-temperature methanol to the hydrogen storage compressor heat exchange module 81, the hydrogenation compressor heat exchange module 101, the 35MPa hydrogenation machine heat exchange module 121, the high-pressure hydrogenation compressor heat exchange module 131 and the 70MPa hydrogenation machine heat exchange module 151, so that the hydrogen storage compressor heat exchange module 81 is used for preventing the hydrogen storage compressor 8 from losing efficacy due to overhigh temperature in the hydrogen pressurization process and simultaneously cooling the pressurized hydrogen; the hydrogenation compressor heat exchange module 101 is used for preventing the hydrogenation compressor 10 from losing efficacy due to overhigh temperature in the hydrogen pressurizing process and simultaneously cooling the pressurized hydrogen; the 35MPa hydrogenation machine heat exchange module 121 is used for controlling the temperature of the hydrogen before being added into the fuel cell; the high-pressure hydrogenation compressor heat exchange module 131 is used for preventing the high-pressure hydrogenation compressor 13 from losing efficacy due to overhigh temperature in the process of pressurizing hydrogen and simultaneously cooling the pressurized hydrogen; the 70MPa hydrogenation machine heat exchange module 151 is used for controlling the temperature of the hydrogen before being added into the fuel cell;
when the hydrogenation station needs to continue the hydrogenation service during the maintenance of the methanol-to-hydrogen device, the 20MPa high-pressure hydrogen cylinder 18 can be used for transporting the outsourced 20MPa qualified hydrogen to the methanol-to-hydrogen hydrogenation station and is connected with the hydrogenation compressor 10, then the qualified hydrogen which is pressurized to 45MPa by the hydrogenation compressor 10 is stored in the hydrogen medium-pressure storage tank 11, then the hydrogenation operation for the 35MPa fuel cell car is realized by the 35MPa hydrogenation machine 12, and the hydrogenation operation for the 70MPa fuel cell car is realized by the 70MPa hydrogenation machine 15.
The invention has the advantages that: (1) The hydrogen production and hydrogen adding station of the methanol can realize the on-site hydrogen production of the hydrogen adding station, has lower hydrogen production cost, can well solve the problem that the uneven distribution of hydrogen sources affects the layout of the hydrogen adding station, and saves the transportation cost; (2) The methanol is in a liquid state at normal temperature and normal pressure, the energy density is high, the storage condition is identical, and the requirements on a pipeline and a valve in the filling process are low; (3) The hydrogen production and hydrogenation integrated design has small cost requirements, and is beneficial to market popularization of hydrogen energy; (4) The low-temperature methanol, the cold energy and the hydrogenation system are coupled, so that the integration level and the utilization efficiency of the system are improved; (5) When the methanol is mixed with water, a large amount of hydrogen is generated, so that the hydrogen can be safely and cleanly produced when in use, and compared with a plurality of other raw materials, the hydrogen production method has more cost competitiveness and less harmful emission; (6) A premix of methanol and water is a readily disposable liquid that is produced worldwide and is available in virtually every area of the world; (7) Methanol is typically less costly than compressed hydrogen and in many cases can be produced at the lowest cost when used; (8) Methanol is in a liquid state under the atmospheric condition, and can be easily and safely transported to remote areas with limited infrastructure in a plastic tank or other common containers; compared with compressed hydrogen, the method can greatly save the maintenance cost of raw material storage; (9) The freezing points of methanol and water are extremely low (-71 ℃), so that the methanol and water can be used as raw materials in cold weather, and the hydrogen production capacity is not affected by the temperature of the stored methanol/water raw materials; (10) Storage of methanol and water does not affect fuel quality and can therefore be stored in a larger storage tank and save the cost of refuelling.
The above description is only of the preferred embodiment of the present invention, and is not intended to limit the present invention in any other way, but any modifications or equivalent variations according to the technical spirit of the present invention are still included in the scope of the present invention.
Claims (8)
1. The hydrogen production hydrogenation station for methanol is characterized in that: the device comprises a low-temperature methanol storage tank, an oxygen storage tank, a water tank, a methanol comprehensive heat exchange module, a methanol hydrogen production device, a hydrogen purification device, a hydrogen buffer tank, a hydrogen storage compressor, a hydrogen low-pressure storage tank, a hydrogenation compressor, a hydrogen medium-pressure storage tank, a 35MPa hydrogenation machine, a high-pressure hydrogenation compressor, a hydrogen high-pressure storage tank and a 70MPa hydrogenation machine;
the low-temperature methanol storage tank is connected with the methanol comprehensive heat exchange module, and the low-temperature methanol storage tank conveys low-temperature methanol to the methanol comprehensive heat exchange module;
the methanol comprehensive heat exchange module is connected with the methanol hydrogen production device and is used for converting low-temperature methanol into gaseous methanol and conveying the gaseous methanol to the methanol hydrogen production device; the oxygen storage tank is connected with the methanol hydrogen production device and is used for conveying oxygen to the methanol hydrogen production device; the water tank is connected with the methanol hydrogen production device and is used for conveying water required by hydrogen production reaction to the methanol hydrogen production device;
the methanol hydrogen production device can react one part of the input gaseous methanol with the input oxygen to provide proper pressure and temperature for hydrogen production reaction, and can react the other part of the input gaseous methanol with the input water to prepare crude hydrogen containing hydrogen, carbon dioxide and water;
the methanol hydrogen production device is connected with a hydrogen buffer tank through a hydrogen purification device, and the hydrogen purification device purifies crude hydrogen output by the methanol hydrogen production device into qualified hydrogen with the hydrogen pressure of 2-5 MPa and inputs the qualified hydrogen into the hydrogen buffer tank; the hydrogen buffer tank is used for collecting and storing qualified hydrogen with the pressure of 2-5 MPa;
the hydrogen buffer tank is connected with a hydrogen low-pressure storage tank through a hydrogen storage compressor, the hydrogen storage compressor pressurizes 2-5 MPa qualified hydrogen in the hydrogen buffer tank into 20MPa qualified hydrogen and inputs the 20MPa qualified hydrogen into the hydrogen low-pressure storage tank, and the hydrogen low-pressure storage tank is used for storing the 20MPa qualified hydrogen;
the hydrogen low-pressure storage tank is connected with the hydrogen medium-pressure storage tank through a hydrogenation compressor, the hydrogenation compressor pressurizes the 20MPa qualified hydrogen in the hydrogen low-pressure storage tank into 45MPa qualified hydrogen and inputs the 45MPa qualified hydrogen into the hydrogen medium-pressure storage tank, and the hydrogen medium-pressure storage tank is used for storing the 45MPa qualified hydrogen;
the hydrogen medium-pressure storage tank is connected with a 35MPa hydrogenation machine, and the 35MPa hydrogenation machine is used for decompressing the 45MPa qualified hydrogen in the hydrogen medium-pressure storage tank into 35MPa qualified hydrogen and conveying the 35MPa qualified hydrogen into a gas storage bottle of the fuel cell automobile; meanwhile, the hydrogen medium-pressure storage tank is connected with a hydrogen high-pressure storage tank through a high-pressure hydrogenation compressor, and the high-pressure hydrogenation compressor pressurizes 45MPa qualified hydrogen in the hydrogen medium-pressure storage tank into 85-90 MPa qualified hydrogen and inputs the hydrogen into the hydrogen high-pressure storage tank; the hydrogen high-pressure storage tank is used for storing qualified hydrogen with the pressure of 85-90 MPa;
the hydrogen high-pressure storage tank is connected with a 70MPa hydrogenation machine, and the 70MPa hydrogenation machine is used for decompressing the qualified hydrogen with the pressure of 85-90 MPa in the hydrogen high-pressure storage tank into the qualified hydrogen with the pressure of 70MPa and conveying the qualified hydrogen into a gas storage bottle of the fuel cell automobile.
2. The methanol to hydrogen station of claim 1 wherein: the low-temperature methanol storage tank is also connected with the methanol hydrogen production device through a vaporizer, and the vaporizer can convert low-temperature methanol into gaseous methanol and convey the gaseous methanol to the methanol hydrogen production device.
3. The methanol to hydrogen station of claim 1 wherein: the hydrogen storage compressor is connected with a hydrogen storage compressor heat exchange module, and the hydrogen storage compressor heat exchange module is used for preventing the hydrogen storage compressor from losing efficacy due to overhigh temperature in the hydrogen pressurization process and simultaneously cooling the pressurized hydrogen; the hydrogenation compressor is connected with a hydrogen storage compressor heat exchange module, and the hydrogenation compressor heat exchange module is used for preventing the hydrogenation compressor from losing efficacy due to overhigh temperature in the process of pressurizing hydrogen and simultaneously cooling the pressurized hydrogen; the 35MPa hydrogenation machine is connected with a 35MPa hydrogenation machine heat exchange module, and the 35MPa hydrogenation machine heat exchange module is used for controlling the temperature of the hydrogen before the fuel cell car is added.
4. The methanol to hydrogen station of claim 1 wherein: the high-pressure hydrogenation compressor is connected with a high-pressure hydrogenation compressor heat exchange module, and the high-pressure hydrogenation compressor heat exchange module is used for preventing the high-pressure hydrogenation compressor from losing efficacy due to overhigh temperature in the process of pressurizing hydrogen and simultaneously cooling the pressurized hydrogen; the 70MPa hydrogenation machine is connected with a 70MPa hydrogenation machine heat exchange module, and the 70MPa hydrogenation machine heat exchange module is used for controlling the temperature of the hydrogen before the fuel cell car is added.
5. The methanol to hydrogen station of claim 3 or 4 wherein: the methanol comprehensive heat exchange module is connected with the hydrogen storage compressor heat exchange module, the hydrogenation compressor heat exchange module, the 35MPa hydrogenation machine heat exchange module, the high-pressure hydrogenation compressor heat exchange module and the 70MPa hydrogenation machine heat exchange module at the same time, and can provide cold energy for the hydrogen storage compressor heat exchange module, the hydrogenation compressor heat exchange module, the 35MPa hydrogenation machine heat exchange module, the high-pressure hydrogenation compressor heat exchange module and the 70MPa hydrogenation machine heat exchange module.
6. The methanol to hydrogen station of claim 5 wherein: the heat exchange module of the hydrogen storage compressor, the heat exchange module of the hydrogenation compressor, the heat exchange module of the 35MPa hydrogenation machine, the heat exchange module of the high-pressure hydrogenation compressor and the heat exchange module of the 70MPa hydrogenation machine are respectively connected with a refrigerator for providing standby cold energy.
7. The methanol to hydrogen station of claim 1 wherein: the system also comprises a 20MPa high-pressure hydrogen gas cylinder vehicle, wherein the 20MPa high-pressure hydrogen gas cylinder vehicle is used for transporting outsourced 20MPa qualified hydrogen to a methanol hydrogen production hydrogenation station and can be connected with a hydrogenation compressor.
8. The methanol to hydrogen station of claim 1 wherein: the device also comprises a tail gas treatment device which can treat the tail gas of the methanol hydrogen production device.
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| JP2021139375A (en) * | 2020-03-02 | 2021-09-16 | トキコシステムソリューションズ株式会社 | Hydrogen loading system |
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