Low-temperature and high-efficiency hydrogen storage device and hydrogen storage and transmission system using cold energy from LNG receiving stations
By using the cold energy of the LNG receiving station to provide a cold source for the low-temperature physical adsorption hydrogen storage tank, the problem of low hydrogen storage capacity at room temperature is solved, efficient hydrogen storage and transportation is achieved, energy consumption and investment are reduced, and the comprehensive utilization of hot and cold energy is achieved.
Patent Information
- Application Number
- CN202420790813.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-16
- Publication Date
- 2025-04-04
- Estimated Expiration
- 2034-04-16
AI Technical Summary
The existing hydrogen storage technology has low hydrogen storage capacity at room temperature, insufficient energy density, and high energy consumption of low-temperature compressed hydrogen, and expensive investment in refrigeration facilities, resulting in low hydrogen storage and transportation efficiency of renewable energy.
The cold energy of the LNG receiving station provides a cold source for the low-temperature physical adsorption and hydrogen storage tank, and heat exchange with the adsorbent is achieved through the jacketed container structure and internal heat exchange tube to achieve the adsorption and storage of low-temperature hydrogen, and low-temperature compression or high-pressure transportation as needed.
It greatly improves the storage and transportation efficiency of hydrogen, realizes the comprehensive utilization of hot and cold energy, reduces investment and energy consumption, and is more energy-saving and efficient than other methods.
Smart Images
Figure CN222717978U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of renewable energy storage and transportation, and in particular to a low-temperature and high-efficiency hydrogen storage device and a hydrogen storage and transportation system utilizing cold energy of an LNG receiving station. Background Art
[0002] The emergence of global environmental problems has accelerated the transformation of the energy structure towards reducing dependence on fossil fuels. Renewable energy represented by wind and solar power generation has developed rapidly, among which the development of hydrogen energy has become one of the hot spots. The electric hydrogen system combining renewable energy and hydrogen storage is the only way to achieve the goal of "carbon neutrality".
[0003] Currently, the world's main hydrogen storage technologies can be divided into physical hydrogen storage (including high-pressure hydrogen storage, low-temperature compression and liquid hydrogen storage), physical adsorption hydrogen storage (including activated carbon hydrogen storage, carbon nanofiber hydrogen storage, graphite nanofiber hydrogen storage, carbon nanotube hydrogen storage and metal organic framework material hydrogen storage) and chemical adsorption hydrogen storage (including metal compound hydrogen storage, liquid organic hydrogen storage, hydrocarbon hydrogen storage and ammonia hydrogen storage).
[0004] Among them, physical adsorption hydrogen storage avoids the problem of low safety of physical hydrogen storage. It has the characteristics of mild hydrogen absorption and desorption conditions, large hydrogen storage capacity and low cost. It has a high prospect for scientific research and promotion, but it also has problems such as low hydrogen storage density to a certain extent.
[0005] The key point of hydrogen storage technology is how to improve the energy density of hydrogen. The quality of hydrogen storage technology is often measured by the mass density of hydrogen, that is, the ratio of the mass of released hydrogen to the total mass.
[0006] Although the physical adsorption hydrogen storage capacity at low temperatures has reached a considerable level, the hydrogen storage capacity at room temperature is still very low, and the physical adsorption hydrogen storage based on materials cannot still achieve the goal of commercial utilization at room temperature. In addition, the mass energy density of cryogenic compressed hydrogen (CcH2) is very high, and some temperature and pressure combinations are even higher than liquid hydrogen. Therefore, loading hydrogen storage tanks in this way can provide more energy, but for long-distance mobile hydrogen storage at room temperature, room temperature and high pressure hydrogen storage is still the main technical means of mobile physical hydrogen storage.
[0007] The storage and transportation of hydrogen produced by renewable energy power generation involves the operating energy consumption and efficiency of energy storage and delivery. Adsorption hydrogen storage, hydrogen transportation in cryogenic compression tanks, and hydrogen transportation in normal temperature and high pressure tanks are currently important ways to store and transport hydrogen. Among them, adsorption hydrogen storage has a small adsorption amount at room temperature and low energy storage efficiency. If low-temperature adsorption hydrogen storage can be used, its efficiency can be greatly improved. At the same time, low-temperature compression tanks can also achieve a higher hydrogen density, which can greatly improve the efficiency of hydrogen transportation. However, if refrigeration facilities are built separately for the above two to provide cooling, the energy consumption is very high, and the investment in refrigeration facilities is also high.
[0008] The high investment and high energy consumption in the above situations are caused by the separate construction and operation of renewable energy and its storage and transportation facilities. Utility Model Content
[0009] In order to solve the above problems, the utility model proposes a low-temperature and high-efficiency hydrogen storage device and a hydrogen storage and transmission system that utilize the cold energy of the LNG receiving station. Based on the coordinated operation mode of renewable energy and the LNG receiving station, investment and energy consumption can be reduced.
[0010] The technical solution adopted by the utility model is as follows:
[0011] A low-temperature and high-efficiency hydrogen storage device that utilizes cold energy from an LNG receiving station, comprising a low-temperature physical adsorption hydrogen storage tank, wherein the low-temperature physical adsorption hydrogen storage tank is configured as a jacketed container structure; a hydrogen storage side inlet of the low-temperature physical adsorption hydrogen storage tank is connected to an electrolyzer of a renewable energy hydrogen production device, and a hydrogen storage side outlet is connected to a hydrogen cooling heat exchanger or a hydrogen compressor inlet; a jacket inlet of the low-temperature physical adsorption hydrogen storage tank is connected to a high-pressure liquefied natural gas pipeline, and a jacket outlet is connected to a high-pressure natural gas transmission pipeline, wherein the high-pressure liquefied natural gas and high-pressure natural gas are natural gas having a transmission pressure greater than or equal to 1.0 MPa.
[0012] Furthermore, high-pressure liquefied natural gas is input into the jacket of the low-temperature physical adsorption hydrogen storage tank and high-pressure natural gas is output, an adsorbent is arranged outside the jacket, and the jacket leads to a plurality of internal heat exchange tubes for heat exchange with the adsorbent.
[0013] Furthermore, the adsorbent includes activated carbon, carbon nanotubes, zeolite or metal-organic framework complex MOFs, and heat is exchanged by inserting the internal heat exchange tube into the adsorbent.
[0014] A low-temperature and efficient hydrogen storage and transmission system utilizing cold energy of an LNG receiving station, comprising a renewable energy hydrogen production device, a low-temperature physical adsorption hydrogen storage tank, a hydrogen cooling heat exchanger and a hydrogen compressor connected in sequence; the low-temperature physical adsorption hydrogen storage tank is configured as a jacketed container structure, the hydrogen storage side inlet of which is connected to the electrolyzer of the renewable energy hydrogen production device, the hydrogen storage side outlet is connected to the hydrogen cooling heat exchanger inlet, and the hydrogen cooling heat exchanger outlet is connected to the hydrogen compressor inlet; the jacket inlet of the low-temperature physical adsorption hydrogen storage tank is connected to a high-pressure liquefied natural gas pipeline, and the jacket outlet is connected to a high-pressure natural gas transmission pipeline, and the high-pressure liquefied natural gas and high-pressure natural gas are natural gas with a transmission pressure greater than or equal to 1.0 MPa.
[0015] Furthermore, high-pressure liquefied natural gas is input into the jacket of the low-temperature physical adsorption hydrogen storage tank and high-pressure natural gas is output, an adsorbent is arranged outside the jacket, and the jacket leads to multiple internal heat exchange tubes for heat exchange with the adsorbent; the adsorbent includes activated carbon, carbon nanotubes, zeolite or metal-organic framework complex MOFs, which is inserted into the adsorbent through internal heat exchange tubes for heat exchange.
[0016] A low-temperature and efficient hydrogen storage and transmission system utilizing cold energy of an LNG receiving station, comprising a renewable energy hydrogen production device, a low-temperature physical adsorption hydrogen storage tank, a hydrogen compressor, and a hydrogen cooling heat exchanger connected in sequence; the low-temperature physical adsorption hydrogen storage tank is configured as a jacketed container structure, the hydrogen storage side inlet of which is connected to the electrolyzer of the renewable energy hydrogen production device, the hydrogen storage side outlet is connected to the hydrogen compressor inlet, and the hydrogen compressor outlet is connected to the hydrogen cooling heat exchanger inlet; the jacket inlet of the low-temperature physical adsorption hydrogen storage tank is connected to a high-pressure liquefied natural gas pipeline, and the jacket outlet is connected to a high-pressure natural gas transmission pipeline, and the high-pressure liquefied natural gas and high-pressure natural gas are natural gas with a transmission pressure greater than or equal to 1.0 MPa.
[0017] Furthermore, high-pressure liquefied natural gas is input into the jacket of the low-temperature physical adsorption hydrogen storage tank and high-pressure natural gas is output, an adsorbent is arranged outside the jacket, and the jacket leads to multiple internal heat exchange tubes for heat exchange with the adsorbent; the adsorbent includes activated carbon, carbon nanotubes, zeolite or metal-organic framework complex MOFs, which is inserted into the adsorbent through internal heat exchange tubes for heat exchange.
[0018] A low-temperature and efficient hydrogen storage and transmission system utilizing cold energy of an LNG receiving station, comprising a renewable energy hydrogen production device, a low-temperature physical adsorption hydrogen storage tank, and a hydrogen compressor connected in sequence; the low-temperature physical adsorption hydrogen storage tank is configured as a jacketed container structure, a hydrogen storage side inlet of which is connected to an electrolyzer of the renewable energy hydrogen production device, and a hydrogen storage side outlet is connected to an inlet of a hydrogen compressor; a jacket inlet of the low-temperature physical adsorption hydrogen storage tank is connected to a high-pressure liquefied natural gas pipeline, and a jacket outlet is connected to a high-pressure natural gas transmission pipeline, and the high-pressure liquefied natural gas and high-pressure natural gas are natural gas with a transmission pressure greater than or equal to 1.0 MPa.
[0019] Furthermore, high-pressure liquefied natural gas is input into the jacket of the low-temperature physical adsorption hydrogen storage tank and high-pressure natural gas is output, an adsorbent is arranged outside the jacket, and the jacket leads to multiple internal heat exchange tubes for heat exchange with the adsorbent; the adsorbent includes activated carbon, carbon nanotubes, zeolite or metal-organic framework complex MOFs, which is inserted into the adsorbent through internal heat exchange tubes for heat exchange.
[0020] The beneficial effects of the utility model are:
[0021] The utility model utilizes the cold energy of LNG gasification at the receiving station to perform low-temperature adsorption and storage of hydrogen produced by electrolysis of water from renewable energy, and compresses and transports it at low temperature as needed (it can also be transported at room temperature and high pressure), greatly improving the efficiency of hydrogen storage and transportation, while realizing the comprehensive utilization of cold and heat energy, which is more energy-saving and efficient than other methods. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] Figure 1It is a schematic diagram of a low-temperature and high-efficiency hydrogen storage and transmission system of Example 1 of the utility model.
[0023] Figure 2 It is a schematic diagram of a low-temperature and high-efficiency hydrogen storage and transmission system of Example 2 of the utility model.
[0024] Figure 3 It is a schematic diagram of a low-temperature and high-efficiency hydrogen storage and transmission system of Example 3 of the utility model. DETAILED DESCRIPTION
[0025] In order to have a clearer understanding of the technical features, purposes and effects of the utility model, the specific implementation methods of the utility model are now described. It should be understood that the specific embodiments described herein are only used to explain the utility model, and are not used to limit the utility model, that is, the embodiments described are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of the utility model.
[0026] Example 1
[0027] The present embodiment provides a low-temperature and high-efficiency hydrogen storage device that utilizes the cold energy of an LNG receiving station, including a low-temperature physical adsorption hydrogen storage tank, which is configured as a jacketed container structure; the hydrogen storage side inlet of the low-temperature physical adsorption hydrogen storage tank is connected to the electrolyzer of a renewable energy hydrogen production device, and the hydrogen storage side outlet is connected to a hydrogen cooling heat exchanger or a hydrogen compressor inlet; the jacket inlet of the low-temperature physical adsorption hydrogen storage tank is connected to a high-pressure liquefied natural gas pipeline, and the jacket outlet is connected to a high-pressure natural gas transmission pipeline, and the high-pressure liquefied natural gas and the high-pressure natural gas are natural gas with a transmission pressure greater than or equal to 1.0 MPa.
[0028] Considering that most of my country's LNG (liquefied natural gas) receiving stations are located at the seaside, which is also a concentrated collection area for renewable energy (wind energy, solar energy, tidal energy), and LNG receiving stations have abundant cold energy, the following new methods are considered to achieve efficient storage and delivery of hydrogen:
[0029] 1) Set up an electrolysis station near the receiving station to convert the unconsumed electricity generated by renewable energy into hydrogen gas.
[0030] 2) Use the cold energy released by LNG gasification to cool down the hydrogen physical adsorption facilities, realize hydrogen physical adsorption at low temperature, and achieve the purpose of greatly increasing the hydrogen storage density. In addition, this method does not require additional investment in the construction of a refrigeration system, saving investment.
[0031] 3) At the same time as 2), the heat energy released by adsorption is used to gasify and heat the LNG, so as to realize the comprehensive utilization of cold and heat energy and achieve the purpose of energy saving.
[0032] 4) When hydrogen is needed, the hydrogen that has been analyzed is pressurized / cooled, or cooled / pressurized, to become low-temperature compressed hydrogen with high mass energy density, and then loaded and transported, thus realizing efficient delivery of hydrogen energy. The cooling energy used in the cooling process still comes from the cooling energy released by the gasification and heating of LNG, and the process also realizes the energy-saving purpose of comprehensive utilization of cold and heat energy.
[0033] 5) If a room temperature mobile hydrogen storage tank is required, then the decomposed hydrogen only needs to be pressurized and directly filled into a high pressure room temperature hydrogen storage tank.
[0034] 6) The mode of being able to carry out both low-temperature compressed hydrogen filling and high-pressure room-temperature hydrogen filling can adapt to various market demands, help expand the market and improve economic benefits.
[0035] Since the LNG stored in the LNG receiving station contains a large amount of deep cold energy, when the LNG is pressurized and gasified for external transmission according to downstream demand, this part of cold energy will be released. At this time, the deep cold energy (-150℃~-160℃) can be used to cool the physical adsorbent, and then adsorb hydrogen. Since the operating temperature is very low at this time, the amount of hydrogen adsorption increases and the hydrogen storage density is also large. When the adsorption is completed, the receiving station uses a small external transmission volume to supply cold energy to maintain the physical adsorption hydrogen storage facility in a deep cold state to maintain the adsorption of hydrogen without desorption. When hydrogen analysis and external transmission are required, the cold energy supply of the receiving station is reduced or cut off to heat up the hydrogen storage facility so that the hydrogen can be analyzed out. Whether the receiving station supplies cold energy and the amount of cold energy supplied can be adjusted according to the operating requirements of the physical adsorption hydrogen storage facility and the cooling facility.
[0036] Based on this, this embodiment provides a low-temperature and high-efficiency hydrogen storage device and a hydrogen storage and transmission system that utilizes the cold energy of the LNG receiving station. Figure 1 As shown, it includes renewable energy hydrogen production equipment, low-temperature physical adsorption hydrogen storage tank, hydrogen cooling heat exchanger and hydrogen compressor connected in sequence; the low-temperature physical adsorption hydrogen storage tank is configured as a jacketed container structure, the hydrogen storage side inlet is connected to the electrolyzer of the renewable energy hydrogen production equipment, the hydrogen storage side outlet is connected to the hydrogen cooling heat exchanger inlet, and the hydrogen cooling heat exchanger outlet is connected to the hydrogen compressor inlet; the jacket inlet of the low-temperature physical adsorption hydrogen storage tank is connected to the high-pressure liquefied natural gas pipeline, and the jacket outlet is connected to the high-pressure natural gas transmission pipeline, and the high-pressure liquefied natural gas and high-pressure natural gas are natural gas with a transmission pressure greater than or equal to 1.0MPa.
[0037] When hydrogen needs to be delivered, the hydrogen can be cooled again after heat exchange with LNG or low-temperature NG, and then compressed to the loading pressure and filled into the low-temperature compressed hydrogen storage tank for use in hydrogen energy vehicles or delivered as a hydrogen container. Low-temperature compressed hydrogen can achieve a high hydrogen storage density and improve transportation efficiency. The cold energy used in the cooling process still comes from the cold energy released by the gasification and heating of LNG, and the process also achieves the energy-saving purpose of comprehensive utilization of cold and heat energy.
[0038] Preferably, high-pressure liquefied natural gas is input into the jacket of the low-temperature physical adsorption hydrogen storage tank and high-pressure natural gas is output, an adsorbent is arranged outside the jacket, and the jacket leads to multiple internal heat exchange tubes for heat exchange with the adsorbent; the adsorbent can be activated carbon, carbon nanotubes, zeolite or metal-organic framework complex MOFs, which are inserted into the adsorbent through internal heat exchange tubes for heat exchange.
[0039] Among them, activated carbon is a lightweight material with a high specific surface area, light weight, low cost, and can store about 5% mass percent of hydrogen, so activated carbon adsorption hydrogen storage is a more practical hydrogen storage method. Metal organic framework materials have a higher specific surface area than activated carbon, and their hydrogen storage capacity reaches 7% at -196°C. (Master's thesis of Wuhan University of Technology "Simulation and Optimization of Low-temperature Adsorption Hydrogen Storage System" Li Qian) Activated carbon adsorption hydrogen storage technology uses high specific surface area activated carbon as an adsorbent in the range of 77K-273K and 1-10MPa. The high specific surface area (the ratio of the surface area to the volume of an object is called specific surface area) of adsorbed hydrogen molecules can provide a solution to the hydrogen storage problem. Among adsorption hydrogen storage materials, activated carbon is a very good adsorbent. The specific surface area of activated carbon exceeds 5000m 2 / g, because of its light weight, it is also a cheaper material and can store 5% mass percentage of hydrogen.
[0040] Experiments have shown that the hydrogen adsorption capacity increases with the increase of the specific surface area of super activated carbon and increases with the decrease of temperature.
[0041] Example 2
[0042] like Figure 2As shown, this embodiment provides a low-temperature and high-efficiency hydrogen storage and transportation system that utilizes the cold energy of an LNG receiving station, including renewable energy hydrogen production equipment, a low-temperature physical adsorption hydrogen storage tank, a hydrogen compressor, and a hydrogen cooling heat exchanger that are connected in sequence; the low-temperature physical adsorption hydrogen storage tank is configured as a jacketed container structure, and its hydrogen storage side inlet is connected to the electrolyzer of the renewable energy hydrogen production equipment, and the hydrogen storage side outlet is connected to the hydrogen compressor inlet, and the hydrogen compressor outlet is connected to the hydrogen cooling heat exchanger inlet; the jacket inlet of the low-temperature physical adsorption hydrogen storage tank is connected to a high-pressure liquefied natural gas pipeline, and the jacket outlet is connected to a high-pressure natural gas transmission pipeline, and the high-pressure liquefied natural gas and the high-pressure natural gas are natural gas with a transmission pressure greater than or equal to 1.0 MPa.
[0043] When hydrogen needs to be delivered, the hydrogen extracted is pressurized to the loading pressure (30-70MPag), cooled after heat exchange with LNG or low-temperature NG, and then filled into low-temperature compressed storage tanks for use in hydrogen energy vehicles or delivered as hydrogen containers. Low-temperature compressed hydrogen can achieve high hydrogen storage density and improve transportation efficiency. The cold energy used in the cooling process still comes from the cold energy released by the gasification and heating of LNG, and the process also achieves the energy-saving purpose of comprehensive utilization of cold and heat energy.
[0044] Preferably, high-pressure liquefied natural gas is input into the jacket of the low-temperature physical adsorption hydrogen storage tank and high-pressure natural gas is output, an adsorbent is arranged outside the jacket, and the jacket leads to multiple internal heat exchange tubes for heat exchange with the adsorbent; the adsorbent can be activated carbon, carbon nanotubes, zeolite or metal-organic framework complex MOFs, which are inserted into the adsorbent through internal heat exchange tubes for heat exchange.
[0045] Example 3
[0046] like Figure 3 As shown, this embodiment provides a low-temperature and high-efficiency hydrogen storage and transportation system that utilizes cold energy from an LNG receiving station, including a renewable energy hydrogen production device, a low-temperature physical adsorption hydrogen storage tank, and a hydrogen compressor that are sequentially connected; the low-temperature physical adsorption hydrogen storage tank is configured as a jacketed container structure, and its hydrogen storage side inlet is connected to the electrolyzer of the renewable energy hydrogen production device, and the hydrogen storage side outlet is connected to the hydrogen compressor inlet; the jacket inlet of the low-temperature physical adsorption hydrogen storage tank is connected to a high-pressure liquefied natural gas pipeline, and the jacket outlet is connected to a high-pressure natural gas transmission pipeline, and the high-pressure liquefied natural gas and the high-pressure natural gas are natural gas with a transmission pressure greater than or equal to 1.0 MPa.
[0047] When hydrogen needs to be delivered, the hydrogen extracted is pressurized to the loading pressure (30-70MPag) and then filled into a high-pressure room-temperature hydrogen storage tank for use in long-distance mobile hydrogen energy vehicles. The mode of filling low-temperature compressed hydrogen and high-pressure room-temperature hydrogen can meet various market needs, help expand the market and improve economic benefits.
[0048] Preferably, high-pressure liquefied natural gas is input into the jacket of the low-temperature physical adsorption hydrogen storage tank and high-pressure natural gas is output, an adsorbent is arranged outside the jacket, and the jacket leads to multiple internal heat exchange tubes for heat exchange with the adsorbent; the adsorbent can be activated carbon, carbon nanotubes, zeolite or metal-organic framework complex MOFs, which are inserted into the adsorbent through internal heat exchange tubes for heat exchange.
[0049] In summary, the utility model utilizes the cold energy of LNG gasification at the receiving station to perform low-temperature adsorption and storage of hydrogen produced by electrolysis of water from renewable energy, and compresses and transports it at low temperature as needed (it can also be transported at room temperature and high pressure), greatly improving the efficiency of hydrogen storage and transportation, while realizing the comprehensive utilization of cold and heat energy, which is more energy-saving and efficient than other methods.
[0050] The above is only a preferred embodiment of the utility model. It should be understood that the utility model is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art do not deviate from the spirit and scope of the utility model, and should be within the scope of protection of the claims attached to the utility model.
Claims
1. A low-temperature and high-efficiency hydrogen storage device utilizing cold energy from an LNG receiving station, characterized in that: It includes a low-temperature physical adsorption hydrogen storage tank, which is configured as a jacketed container structure; the hydrogen storage side inlet of the low-temperature physical adsorption hydrogen storage tank is connected to the electrolyzer of the renewable energy hydrogen production equipment, and the hydrogen storage side outlet is connected to the hydrogen cooling heat exchanger or the hydrogen compressor inlet; the jacket inlet of the low-temperature physical adsorption hydrogen storage tank is connected to the high-pressure liquefied natural gas pipeline, and the jacket outlet is connected to the high-pressure natural gas transmission pipeline, and the high-pressure liquefied natural gas and high-pressure natural gas are natural gas with a transmission pressure greater than or equal to 1.0MPa.
2. The low-temperature and high-efficiency hydrogen storage device utilizing cold energy of an LNG receiving station according to claim 1 is characterized in that: The jacket of the low-temperature physical adsorption hydrogen storage tank inputs high-pressure liquefied natural gas and outputs high-pressure natural gas. An adsorbent is arranged outside the jacket, and the jacket leads to a plurality of internal heat exchange tubes for heat exchange with the adsorbent.
3. A low-temperature and high-efficiency hydrogen storage and transportation system utilizing cold energy from an LNG receiving station, characterized in that: It includes renewable energy hydrogen production equipment, a low-temperature physical adsorption hydrogen storage tank, a hydrogen cooling heat exchanger and a hydrogen compressor which are connected in sequence; the low-temperature physical adsorption hydrogen storage tank is arranged as a jacketed container structure, the hydrogen storage side inlet is connected to the electrolyzer of the renewable energy hydrogen production equipment, the hydrogen storage side outlet is connected to the hydrogen cooling heat exchanger inlet, and the hydrogen cooling heat exchanger outlet is connected to the hydrogen compressor inlet; the jacket inlet of the low-temperature physical adsorption hydrogen storage tank is connected to a high-pressure liquefied natural gas pipeline, and the jacket outlet is connected to a high-pressure natural gas transmission pipeline, and the high-pressure liquefied natural gas and high-pressure natural gas are natural gas with a transmission pressure greater than or equal to 1.0MPa.
4. The low-temperature and high-efficiency hydrogen storage and transportation system using cold energy of an LNG receiving station according to claim 3 is characterized in that: The jacket of the low-temperature physical adsorption hydrogen storage tank inputs high-pressure liquefied natural gas and outputs high-pressure natural gas. An adsorbent is arranged outside the jacket, and the jacket leads to a plurality of internal heat exchange tubes for heat exchange with the adsorbent.
5. A low-temperature and high-efficiency hydrogen storage and transportation system utilizing cold energy from an LNG receiving station, characterized in that: It includes renewable energy hydrogen production equipment, a low-temperature physical adsorption hydrogen storage tank, a hydrogen compressor and a hydrogen cooling heat exchanger connected in sequence; the low-temperature physical adsorption hydrogen storage tank is configured as a jacketed container structure, the hydrogen storage side inlet is connected to the electrolyzer of the renewable energy hydrogen production equipment, the hydrogen storage side outlet is connected to the hydrogen compressor inlet, and the hydrogen compressor outlet is connected to the hydrogen cooling heat exchanger inlet; the jacket inlet of the low-temperature physical adsorption hydrogen storage tank is connected to a high-pressure liquefied natural gas pipeline, and the jacket outlet is connected to a high-pressure natural gas transmission pipeline, and the high-pressure liquefied natural gas and high-pressure natural gas are natural gas with a transmission pressure greater than or equal to 1.0MPa.
6. The low-temperature and high-efficiency hydrogen storage and transportation system using cold energy of an LNG receiving station according to claim 5 is characterized in that: The jacket of the low-temperature physical adsorption hydrogen storage tank inputs high-pressure liquefied natural gas and outputs high-pressure natural gas. An adsorbent is arranged outside the jacket, and the jacket leads to a plurality of internal heat exchange tubes for heat exchange with the adsorbent.
7. A low-temperature and high-efficiency hydrogen storage and transportation system utilizing cold energy from an LNG receiving station, characterized in that: It includes renewable energy hydrogen production equipment, a low-temperature physical adsorption hydrogen storage tank and a hydrogen compressor connected in sequence; the low-temperature physical adsorption hydrogen storage tank is configured as a jacketed container structure, the hydrogen storage side inlet is connected to the electrolyzer of the renewable energy hydrogen production equipment, and the hydrogen storage side outlet is connected to the hydrogen compressor inlet; the jacket inlet of the low-temperature physical adsorption hydrogen storage tank is connected to a high-pressure liquefied natural gas pipeline, and the jacket outlet is connected to a high-pressure natural gas transmission pipeline, and the high-pressure liquefied natural gas and high-pressure natural gas are natural gas with a transmission pressure greater than or equal to 1.0MPa.
8. The low-temperature and high-efficiency hydrogen storage and transportation system using cold energy of an LNG receiving station according to claim 7 is characterized in that: The jacket of the low-temperature physical adsorption hydrogen storage tank inputs high-pressure liquefied natural gas and outputs high-pressure natural gas. An adsorbent is arranged outside the jacket, and the jacket leads to a plurality of internal heat exchange tubes for heat exchange with the adsorbent.