Hydrogen Refueling Station System Based on the Dehydrogenation of Organic Liquids and Its Optimization Method
Through the modular design and coupled physical model optimization of organic liquid dehydrogenation system, the resource waste problem of hydrogen refueling station system under changes in output at the hydrogen supply end and fluctuations in the user side is solved, efficient hydrogen supply and storage tank recycling are achieved, and the supply and demand coordinated optimization capabilities of hydrogen refueling stations are improved.
Patent Information
- Application Number
- CN202510607675.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-13
- Publication Date
- 2025-08-05
- Estimated Expiration
- 2045-05-13
AI Technical Summary
The existing hydrogen refueling station systems cannot effectively coordinate and optimize when facing changes in hydrogen supply output and fluctuations in the user-side load, resulting in waste of resources and imbalance in supply and demand.
The modularly designed organic liquid dehydrogenation system is adopted, including a hydrogen-rich storage tank receiving module, a dehydrogenation module, a hydrogen storage module and a hydrogen-leading storage tank transport module. By coupling the physical model to optimize parameters, the conditions for the impact of market fluctuations on hydrogenation demand are established to achieve efficient recycling of storage tanks and the stability of hydrogen supply.
It improves the flexibility and stability of hydrogen supply in the hydrogen refueling station system, reduces the waste of idle resources in the storage tank, enhances the coordinated optimization capability of hydrogen supply, and meets the dynamic needs of the user side.
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Figure CN120140648B_ABST
Abstract
Description
Technical Field
[0001] The present application belongs to the field of hydrogen refueling stations, and specifically relates to a hydrogen refueling station system based on organic liquid dehydrogenation, an optimization method thereof, a storage medium, and electronic equipment. Background Art
[0002] Liquid Organic Hydrogen Carrier (LOHC) technology utilizes the reversible hydrogenation / dehydrogenation properties of specific organic compounds (such as toluene, dodecahydro-N-ethylcarbazole, etc.): During the hydrogenation process, hydrogen combines with liquid organic matter to form hydrogen-rich compounds (LOHC + ), to achieve chemical storage of hydrogen; during dehydrogenation, hydrogen is released through catalysts and heating, and the organic matter is restored to a hydrogen-poor state (LOHC - ) and recycled. Due to its safe storage and transportation characteristics at room temperature and pressure, it is considered an important development direction in the field of hydrogen refueling stations. However, it still faces technical bottlenecks in dehydrogenation reaction efficiency, tank recycling, and coordinated optimization with hydrogen production.
[0003] Existing hydrogen refueling station operation plans mostly focus on the design of a single in-station equipment. As of now, there is still a lack of an effective solution for hydrogen refueling station technology that can match the changes in hydrogen supply output while taking into account the load fluctuations on the user side, thereby achieving a reasonable allocation between supply and demand. Summary of the Invention
[0004] The present application aims to provide a hydrogenation station system based on organic liquid dehydrogenation and its optimization method, storage medium and electronic equipment, which at least solves the problem of resource waste caused by the inability to take into account both the output changes on the power generation side and the load fluctuations on the user side.
[0005] In a first aspect, the present invention discloses a hydrogenation station system based on organic liquid dehydrogenation, comprising:
[0006] Hydrogen-rich storage tank receiving module, dehydrogenation module, hydrogen storage module, hydrogenation equipment module and hydrogen-poor storage tank transport module;
[0007] The hydrogen-rich storage tank receiving module is used to receive a hydrogen-rich storage tank storing hydrogen-rich organic liquid from the organic liquid hydrogen storage system;
[0008] The dehydrogenation module is used to dehydrogenate the hydrogen-rich organic liquid in the hydrogen-rich storage tank to obtain hydrogen and hydrogen-poor organic liquid;
[0009] The hydrogen-poor storage tank transport module is used to store the hydrogen-poor organic liquid generated by the dehydrogenation module and transport the hydrogen-poor storage tank storing the hydrogen-poor organic liquid to the organic liquid hydrogen storage system;
[0010] The hydrogen storage module is used to store the hydrogen obtained by the dehydrogenation process;
[0011] The hydrogenation equipment module is used to input the hydrogen stored in the hydrogen storage module into hydrogen equipment.
[0012] In a second aspect, the present application also discloses an optimization method for a hydrogenation station system based on organic liquid dehydrogenation, comprising:
[0013] Based on a coupled physical model characterizing the process of transferring hydrogen-rich and hydrogen-lean tanks between an organic liquid hydrogen storage system and a hydrogen refueling station system based on organic liquid dehydrogenation, a parameter optimization model constrained by the impact of market fluctuations on hydrogen refueling demand was established.
[0014] Solving the parameter optimization model to obtain a plurality of hydrogenation station design parameter values of the hydrogenation station system based on organic liquid dehydrogenation;
[0015] The hydrogenation station system based on organic liquid dehydrogenation is configured according to the obtained multiple hydrogenation station design parameter values to obtain an optimized hydrogenation station system based on organic liquid dehydrogenation.
[0016] In a third aspect, the present application also discloses an optimization device for a hydrogenation station system based on organic liquid dehydrogenation, comprising:
[0017] A modeling module for establishing a parameter optimization model constrained by the impact of market fluctuations on hydrogen refueling demand based on a coupled physical model used to characterize the process of transferring hydrogen-rich and hydrogen-lean tanks between the organic liquid hydrogen storage system and the hydrogen refueling station system based on organic liquid dehydrogenation;
[0018] a hydrogen storage parameter solving module, configured to solve the parameter optimization model to obtain a plurality of hydrogenation station design parameter values of the hydrogenation station system based on organic liquid dehydrogenation;
[0019] A hydrogen storage configuration module is used to configure the hydrogenation station system based on organic liquid dehydrogenation according to the obtained multiple hydrogenation station design parameter values to obtain an optimized hydrogenation station system based on organic liquid dehydrogenation.
[0020] In a fourth aspect, an embodiment of the present application further discloses an electronic device comprising a processor and a memory, wherein the memory stores programs or instructions that can be run on the processor, and when the programs or instructions are executed by the processor, the steps of the method described in the first aspect are implemented.
[0021] In a fifth aspect, an embodiment of the present application further discloses a readable storage medium, on which a program or instruction is stored. When the program or instruction is executed by a processor, the steps of the method described in the first aspect are implemented.
[0022] In summary, in the embodiment of the present application, the stable input of the hydrogen-rich organic liquid storage tank is achieved through the hydrogen-rich storage tank receiving module, so that the hydrogenation station system for dehydrogenation of organic liquid can efficiently receive and process the hydrogen-rich substances at the hydrogen storage end, providing a stable source for hydrogen supply. This mechanism ensures the continuity of the hydrogen production link, and helps to improve the supply and demand imbalance caused by fluctuations in the output of the hydrogen supply end during the operation of the hydrogenation station; then, the hydrogen-rich organic liquid in the hydrogen-rich storage tank undergoes a catalytic dehydrogenation reaction in the dehydrogenation module to release high-purity hydrogen, while restoring the organic compound to a hydrogen-poor state. After the release of hydrogen, it enters the hydrogen storage module to buffer the impact of fluctuations in the hydrogen supply end on the hydrogenation station, ensuring that the hydrogenation equipment can operate stably under different load conditions. At the same time, the hydrogen undergoes appropriate pressure regulation and storage optimization in the storage module, so that the hydrogen supply has a stronger adjustment capability to meet the dynamic changes in user-end demand. Finally, the hydrogenation equipment module extracts hydrogen from the hydrogen storage module and inputs it into the hydrogen-using equipment to realize the terminal application of hydrogen energy. At the same time, the dehydrogenated hydrogen storage tank is transported out of the module through the dehydrogenated hydrogen storage tank and returned to the organic liquid hydrogen storage system to complete the closed-loop circulation of the storage tank. This circulation mechanism ensures the efficient utilization of the storage tank and reduces the waste of resources caused by the idle storage tank, so that the hydrogen storage-dehydrogenation-hydrogen supply process has a higher collaborative optimization capability. Therefore, the embodiment of the present application adopts a modular design so that the hydrogen refueling station can not only match the output changes of the hydrogen supply end, but also dynamically adjust according to the load fluctuations at the user end, thereby enhancing the stability and flexibility of the hydrogen supply. Through efficient dehydrogenation treatment, hydrogen storage and storage tank recycling mechanism, the problems of low dehydrogenation reaction efficiency, insufficient storage tank recycling rate, and limited collaborative optimization capability of the hydrogen refueling station and the hydrogen production end in the prior art are effectively solved, providing an innovative solution for the sustainable development of the hydrogen energy industry. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] In the attached figure:
[0024] Figure 1 This is a hydrogenation station system based on organic liquid dehydrogenation provided in an embodiment of the present application;
[0025] Figure 2 is a schematic diagram of a hydrogen storage module provided according to an embodiment of the present application;
[0026] Figure 3 Schematic diagram of the interaction mode between the hydrogen refueling station system provided in an embodiment of the present application and the organic liquid hydrogen storage system for hydrogen production based on renewable energy;
[0027] Figure 4 This is a flowchart of the steps of an optimization method for a hydrogenation station system based on organic liquid dehydrogenation provided in an embodiment of the present application;
[0028] Figure 5This is a flowchart of another method for optimizing a hydrogenation station system based on organic liquid dehydrogenation provided in an embodiment of the present application;
[0029] Figure 6 This is a complete planning process provided according to the embodiment of the present application;
[0030] Figure 7 This is another complete planning process provided according to an embodiment of the present application;
[0031] Figure 8 This is a block diagram of an optimization device for a hydrogenation station system based on organic liquid dehydrogenation provided in an embodiment of the present application;
[0032] Figure 9 This is a block diagram of an electronic device according to an embodiment of the present application. DETAILED DESCRIPTION
[0033] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.
[0034] The terms "first," "second," and the like in the specification and claims of this application are used to distinguish similar objects, and are not used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, so that the embodiments of this application can be implemented in an order other than that illustrated or described herein, and that the objects distinguished by "first," "second," and the like are generally of the same type, and do not limit the number of objects; for example, the first object can be one or more. In addition, the term "and / or" in the specification and claims refers to at least one of the connected objects, and the character " / " generally indicates that the objects connected are in an "or" relationship.
[0035] like Figure 1 As shown, a hydrogenation station system 10 based on organic liquid dehydrogenation provided in this embodiment includes:
[0036] Hydrogen-rich storage tank receiving module 101, dehydrogenation module 102, hydrogen storage module 103, hydrogenation equipment module 104 and hydrogen-poor storage tank transport module 105;
[0037] The hydrogen-rich storage tank receiving module 101 is used to receive the hydrogen-rich storage tank Y storing the hydrogen-rich organic liquid from the organic liquid hydrogen storage system 11;
[0038] The dehydrogenation module 102 is used to dehydrogenate the hydrogen-rich organic liquid in the hydrogen-rich storage tank Y to obtain hydrogen gas and hydrogen-poor organic liquid;
[0039] The hydrogen-poor storage tank transport module 105 is used to store the hydrogen-poor organic liquid generated by the dehydrogenation module and transport the hydrogen-poor storage tank X storing the hydrogen-poor organic liquid to the organic liquid hydrogen storage system 11;
[0040] The hydrogen storage module 103 is used to store the hydrogen obtained by the dehydrogenation process;
[0041] The hydrogenation equipment module 104 is used to input the hydrogen stored in the hydrogen storage module 103 into the hydrogen equipment A.
[0042] In some embodiments of the present application, a hydrogen refueling station system 10 based on organic liquid dehydrogenation includes a hydrogen-rich storage tank receiving module 101, a dehydrogenation module 102, a hydrogen storage module 103, a hydrogenation equipment module 104, and a hydrogen-depleted storage tank transport module 105. The dehydrogenation module 102 and the hydrogen-rich storage tank receiving module 101 are used to receive the hydrogen-rich storage tank Y provided by the organic liquid hydrogen storage system 11, and convert the hydrogen-rich organic liquid in the hydrogen-rich storage tank Y into a hydrogen-depleted state by dehydrogenating the liquid, while releasing hydrogen. The hydrogen-depleted storage tank transport module 105 is connected to the dehydrogenation module 102 and is used to transport the hydrogen-depleted storage tank X back to the organic liquid hydrogen storage system 11. The hydrogen storage module 103 is connected to the dehydrogenation module 102 and is used to store the hydrogen obtained from the dehydrogenation process. The hydrogenation equipment module 104 is connected to the hydrogen storage module 103 and is used to input the stored hydrogen into the hydrogen-consuming device A. Liquid Organic Hydrogen Carrier (LOHC) technology is a method for hydrogen storage and transportation that leverages the reversible hydrogenation / dehydrogenation properties of organic compounds. Specifically, during the dehydrogenation process in the dehydrogenation module 102, a hydrogen-rich organic liquid releases hydrogen and converts to a hydrogen-depleted state for recycling. This process is driven by catalysts and heat. This technology reduces the safety risks and high costs associated with traditional hydrogen storage and transportation methods, such as high-pressure gaseous hydrogen storage or low-temperature liquid hydrogen storage. The hydrogen-rich tank receiving module 101 and the hydrogen-depleted tank transport module 105 establish a circulating transport mechanism for tanks between the hydrogen production and refueling stations, improving tank utilization and reducing resource waste. The dehydrogenation module 102 releases hydrogen through efficient dehydrogenation, optimizing the dehydrogenation reaction efficiency and achieving full-process integration of post-dehydrogenation hydrogen storage and utilization. The hydrogen storage module 103 stores the dehydrogenated hydrogen, providing a stable hydrogen supply to hydrogen-consuming equipment A to meet dynamic demand. The hydrogen refueling equipment module 104 completes the connection from hydrogen storage to use, facilitating the practical application of hydrogen, such as providing hydrogen for hydrogen fuel cell vehicles.
[0043] In summary, in the embodiment of the present application, the stable input of the hydrogen-rich organic liquid storage tank is achieved through the hydrogen-rich storage tank receiving module, so that the hydrogenation station system for dehydrogenation of organic liquid can efficiently receive and process the hydrogen-rich substances at the hydrogen storage end, providing a stable source for hydrogen supply. This mechanism ensures the continuity of the hydrogen production link, and helps to improve the supply and demand imbalance caused by fluctuations in the output of the hydrogen supply end during the operation of the hydrogenation station; then, the hydrogen-rich organic liquid in the hydrogen-rich storage tank undergoes a catalytic dehydrogenation reaction in the dehydrogenation module to release high-purity hydrogen, while restoring the organic compound to a hydrogen-poor state. After the release of hydrogen, it enters the hydrogen storage module to buffer the impact of fluctuations in the hydrogen supply end on the hydrogenation station, ensuring that the hydrogenation equipment can operate stably under different load conditions. At the same time, the hydrogen undergoes appropriate pressure regulation and storage optimization in the storage module, so that the hydrogen supply has a stronger adjustment capability to meet the dynamic changes in user-end demand. Finally, the hydrogenation equipment module extracts hydrogen from the hydrogen storage module and inputs it into the hydrogen-using equipment to realize the terminal application of hydrogen energy. At the same time, the dehydrogenated hydrogen storage tank is transported out of the module through the dehydrogenated hydrogen storage tank and returned to the organic liquid hydrogen storage system to complete the closed-loop circulation of the storage tank. This circulation mechanism ensures the efficient utilization of the storage tank and reduces the waste of resources caused by the idle storage tank, so that the hydrogen storage-dehydrogenation-hydrogen supply process has a higher collaborative optimization capability. Therefore, the embodiment of the present application adopts a modular design so that the hydrogen refueling station can not only match the output changes of the hydrogen supply end, but also dynamically adjust according to the load fluctuations at the user end, thereby enhancing the stability and flexibility of the hydrogen supply. Through efficient dehydrogenation treatment, hydrogen storage and storage tank recycling mechanism, the problems of low dehydrogenation reaction efficiency, insufficient storage tank recycling rate, and limited collaborative optimization capability of the hydrogen refueling station and the hydrogen production end in the prior art are effectively solved, providing an innovative solution for the sustainable development of the hydrogen energy industry.
[0044] Optional, such as Figure 2 As shown, the hydrogen storage module 103 includes a hydrogen buffer tank 1032 (HBT) and a hydrogen storage bottle group 1033 connected via a gas pressure compression device 1031;
[0045] The hydrogen buffer tank 1032 is used to store hydrogen obtained by dehydrogenation in a first pressure range;
[0046] The air pressure compression device 1031 is used to pressurize the hydrogen stored in the hydrogen buffer tank 1032 to a second air pressure range, and input the hydrogen pressurized to the second air pressure range into the hydrogen storage bottle group 1033; the maximum value of the first air pressure range is less than the minimum value of the second air pressure range.
[0047] In some embodiments of the present application, the hydrogen storage module 103 includes an air pressure compression device 1031, a hydrogen buffer tank 1032, and a hydrogen storage bottle group 1033. The air pressure compression device 1031 connects the hydrogen buffer tank 1032 and the hydrogen storage bottle group 1033, wherein the hydrogen buffer tank 1032 is used to store the hydrogen obtained by the dehydrogenation treatment within a first air pressure range; the air pressure compression device 1031 is used to pressurize the hydrogen in the hydrogen buffer tank 1032 to a second air pressure range, and input the pressurized hydrogen into the hydrogen storage bottle group 1033 for storage. The first air pressure range is used to ensure that the hydrogen has high efficiency and safety during the dehydrogenation process, while the second air pressure range meets the high-pressure storage requirements required by the hydrogen storage bottle group to achieve efficient storage of hydrogen. The provision of the hydrogen buffer tank 1032 reduces the energy consumption of hydrogen during the initial storage process and provides a stable low-pressure hydrogen supply for subsequent pressurization treatment. The pneumatic compression device 1031 optimizes the hydrogen pressure increase process through a multi-stage compression process, reducing energy loss in the compression process and meeting the pressure requirements of the hydrogen storage tank group. The hydrogen storage tank group 1033 can store high-pressure hydrogen, ensuring a stable hydrogen supply and meeting the dynamic needs of the hydrogen refueling station.
[0048] Optionally, the gas pressure compression device includes a plurality of gas compressors connected in series.
[0049] In some embodiments of the present application, the gas compression device includes multiple gas compressors connected in series. For example, in some embodiments, the gas compressors can be arranged in a cascade configuration of a first compressor, a second compressor, and a third compressor, so that the hydrogen input from the hydrogen buffer tank undergoes a multi-stage compression process in sequence. The first compressor is used to initially compress the hydrogen to an intermediate pressure, the second compressor is used to further increase the hydrogen from the intermediate pressure to a higher pressure range, and the third compressor is responsible for compressing the hydrogen to the final required high pressure state and inputting it into the hydrogen storage cylinder group. The multi-stage compression system composed of the first, second, and third compressors can significantly improve the efficiency of the hydrogen pressure increase process while reducing the energy loss of each compression stage. For the hydrogen compression process, compression efficiency is closely related to the constant pressure specific heat capacity and compression ratio. A staged compression design can reduce the mechanical load caused by excessive operating pressure in a single compressor stage. The multi-stage compression system optimizes the conversion efficiency of hydrogen from low pressure to high pressure, achieves a balanced pressure increase process, and reduces the energy consumption of the equipment operation. The cascade design of the gas compression device improves the reliability of the compression process and meets the pressure requirements of the hydrogen storage cylinder group for high-pressure hydrogen storage. Through the configuration of multi-stage compressors, the dynamic demand for hydrogen at the hydrogen refueling station can be met, providing a stable hydrogen supply for subsequent hydrogen storage and refueling links.
[0050] Optionally, the organic liquid hydrogen storage system is an organic liquid hydrogen storage system 11 that produces hydrogen based on renewable energy.
[0051] The organic liquid hydrogen storage system based on renewable energy hydrogen production includes at least:
[0052] Renewable energy hydrogen production module 113, hydrogenation module 114, hydrogen-rich storage tank delivery module 115 and hydrogen-poor storage tank receiving module 111;
[0053] The renewable energy hydrogen production module 113 is used to produce hydrogen by electrolyzing water using electricity generated by at least one of the wind turbine 1121 and the photovoltaic device 1122;
[0054] The hydrogenation module 113 is used to hydrogenate the hydrogen-poor organic liquid in the hydrogen-poor storage tank receiving module 111 to obtain a hydrogen-rich organic liquid;
[0055] The hydrogen-rich storage tank transport module 115 is used to store the hydrogen-rich organic liquid produced by the hydrogenation module and transport the hydrogen-rich storage tank Y storing the hydrogen-rich organic liquid to the hydrogen-rich storage tank receiving module 101;
[0056] The hydrogen-depleted storage tank receiving module 111 is used to receive the hydrogen-depleted storage tank from the hydrogen-depleted storage tank transporting module 105 .
[0057] The above structure ensures the recycling of storage tanks between the hydrogen production end and the hydrogen refueling station by utilizing the receiving process of hydrogen-poor storage tanks and the efficient transportation mechanism of hydrogen-rich storage tanks, thereby improving the utilization efficiency of storage tanks and reducing resource waste. At the same time, the energy supply module provides stable electricity to the hydrogen production module, realizing the continuity and efficiency of hydrogen production by electrolysis of water, and optimizing the hydrogenation reaction process of the storage tank hydrogenation module, making the chemical storage of hydrogen more efficient and safe. Finally, the hydrogen-rich storage tank is transported to the hydrogenation station system based on organic liquid dehydrogenation, and a closed-loop circulation mechanism is established between the storage tank and the hydrogenation station, effectively meeting dynamic needs. It fundamentally improves the utilization rate of storage tanks, reduces resource waste, and constructs an organic liquid hydrogen storage system based on renewable energy hydrogen production. It solves the problems of low resource utilization and insufficient system coordination caused by the separation of hydrogen production and storage links in the traditional hydrogen production station operation plan, optimizes the design of hydrogen production efficiency and hydrogen storage process, and solves the problems of low tank utilization and large waste in the hydrogen production and storage process.
[0058] like Figure 3 As shown, based on the hydrogenation station system based on organic liquid dehydrogenation disclosed in this application, the embodiments of this application also disclose an optimization method for the hydrogenation station system based on organic liquid dehydrogenation.
[0059] The method may include the following steps:
[0060] Step 201 : Based on a coupled physical model for characterizing the process of transferring hydrogen-rich storage tanks and hydrogen-lean storage tanks between an organic liquid hydrogen storage system and a hydrogenation station system based on organic liquid dehydrogenation, a parameter optimization model constrained by the impact of market fluctuations on hydrogenation demand is established.
[0061] In some embodiments of the present application, in order to construct a parameter optimization model constrained by the impact of market fluctuations on hydrogenation demand during the tank transfer process between the organic liquid hydrogen storage system and the hydrogenation station system based on organic liquid dehydrogenation, so as to ensure that the system can dynamically adjust the hydrogen storage and dehydrogenation strategies according to market demand and improve operational efficiency and resource utilization, a parameter optimization model is established based on a coupled physical model describing the transfer process between the hydrogen-rich tank and the hydrogen-poor tank. The optimization model combines the volatility of market hydrogen demand and uses this as a constraint to optimize the tank scheduling strategy, hydrogen supply rate, and equipment load adjustment plan. The "coupled physical model" is used to characterize the material flow law of the tank transfer process between the hydrogen storage system and the hydrogenation station system, and can quantify the supply capacity and dynamic balance characteristics of the tank. The "parameter optimization model" combines market demand changes and solves the key design parameters of the hydrogen storage system, such as tank capacity allocation, transportation frequency, and hydrogen release rate, by optimizing the objective function and constraints, to ensure that the hydrogenation station has high adaptability under changing market demand conditions. In this way, by establishing a parameter optimization model, the system can adapt to the volatility of market hydrogen demand and optimize the tank transportation strategy to reduce the number of idle tanks and improve resource utilization; at the same time, this optimization solution can reduce energy waste caused by drastic changes in market demand and improve the economy and flexibility of the hydrogen refueling station system.
[0062] In a specific example, in order to design an optimized design for a wind and solar power generation hydrogen production system and an urban hydrogen refueling station, the market demand for hydrogen is affected by the dynamic changes in industrial production and transportation energy consumption. Market hydrogen demand fluctuation data can be collected, and combined with the coupled physical model of hydrogen-rich storage tanks and hydrogen-poor storage tanks, a parameter optimization model constrained by market demand changes can be established. The execution process of the example includes: optimizing the tank transportation frequency, hydrogen release window and equipment load adjustment strategy based on market forecast data to ensure that the hydrogen energy supply can dynamically match market demand. The optimized hydrogen storage system can adjust the tank scheduling in real time to ensure the stability of the hydrogen supply, while reducing resource waste during the storage process and improving the economic adaptability of the system under market fluctuations.
[0063] Step 202 : Solve the parameter optimization model to obtain multiple hydrogenation station design parameter values for a hydrogenation station system based on organic liquid dehydrogenation.
[0064] In some embodiments of the present application, in order to determine multiple hydrogen station design parameter values of a hydrogen station system based on organic liquid dehydrogenation by solving a parameter optimization model, thereby optimizing the equipment configuration and operation strategy of the hydrogen station and improving hydrogen supply efficiency and resource utilization, an optimization algorithm will be used to solve the parameter optimization model to obtain multiple hydrogen station design parameter values. These parameter values can accurately describe the hydrogen storage, dehydrogenation rate, tank capacity and operation mode of the hydrogenation equipment to ensure that the hydrogenation station system can maintain stable and efficient operation under different demand conditions. The hydrogenation station design parameter values obtained by solving the parameter optimization model can optimize the hydrogen storage scale, dehydrogenation rate and operation strategy of the hydrogenation equipment, improve the stability of hydrogen supply, and at the same time reduce the waste of resources caused by unreasonable scheduling during system operation, so that the hydrogenation station has the ability to dynamically adapt to changes in market demand.
[0065] In a specific example, the optimized design of a city's hydrogen refueling station system needs to adapt to fluctuations in hydrogen supply from wind and solar power generation, as well as dynamic changes in market demand. Data on wind speed, solar radiation, and market hydrogen demand curves have been collected. Combined with the operating conditions of a hydrogen refueling station system based on organic liquid dehydrogenation, a parameter optimization model was constructed. The dehydrogenation module's operating load, storage tank capacity, and hydrogen supply rate of the hydrogen refueling equipment were then used as optimization variables. A solution algorithm was used to calculate the optimal design parameter values to ensure the station's stable operation under varying demand conditions. This optimized hydrogen refueling station system can dynamically adjust its hydrogen supply strategy, ensuring efficient operation of the dehydrogenation module and hydrogen refueling equipment, while reducing resource waste in the storage process and improving the economic efficiency and reliability of hydrogen supply.
[0066] Step 203 : configuring a hydrogenation station system based on organic liquid dehydrogenation according to the obtained multiple hydrogenation station design parameter values to obtain an optimized hydrogenation station system based on organic liquid dehydrogenation.
[0067] In some embodiments of the present application, in order to optimize the configuration of a hydrogenation station system based on organic liquid dehydrogenation based on the obtained multiple hydrogenation station design parameter values, so as to improve the operating efficiency under the conditions of hydrogen supply fluctuations, improve the utilization rate of hydrogen energy, and enhance the stability and adaptability of the system, the operating load of the dehydrogenation module, the storage strategy of the hydrogen storage module, the hydrogen supply rate of the hydrogenation equipment, and the transportation scheme of the hydrogen-poor storage tank will be adjusted according to the obtained multiple hydrogenation station design parameter values to construct an optimized hydrogenation station system so that it can adapt to the dynamic changes in market hydrogen demand. "Hydrogenation station design parameter values" are a set of key configuration variables obtained by solving the parameter optimization model, including dehydrogenation reaction rate, hydrogen storage capacity, tank transportation frequency, and hydrogenation equipment working mode. The optimization and adjustment of these parameters can not only ensure the stability of hydrogen supply, but also improve the energy efficiency of the dehydrogenation process and reduce resource waste in the hydrogen storage link. The hydrogenation station system optimized in this way can effectively adapt to market demand fluctuations, improve the coordination ability of the hydrogen energy supply chain, and reduce unnecessary resource loss by optimizing the working strategy of tank transportation and dehydrogenation module, ultimately ensuring the economy and reliability of hydrogen supply.
[0068] In a specific example, in the optimization design of a city hydrogen refueling station system, the system needs to adapt to the hydrogen supply fluctuations on the wind and solar power generation side and the changes in hydrogen demand on the user side. Based on the obtained hydrogen station design parameters such as dehydrogenation rate, hydrogen storage capacity and the transportation cycle of the lean hydrogen storage tank, the operation mode of the dehydrogenation module is adjusted, and the storage management strategy of the hydrogen storage module is optimized. The optimization parameters can be input into the hydrogen refueling station system model to adjust the system's dehydrogenation reaction, hydrogen supply and storage tank scheduling to match market demand and the volatility of the hydrogen supply side. The optimized hydrogen refueling station system can operate efficiently under the conditions of fluctuating market hydrogen demand, while ensuring the rational management of the hydrogen storage module and the timely transportation of the lean hydrogen storage tank, achieving the optimal configuration of system resources, improving the operating efficiency of the hydrogen supply chain, and reducing operating costs.
[0069] like Figure 5 As shown, another optimization method for a hydrogenation station system based on organic liquid dehydrogenation disclosed in an embodiment of the present application specifically includes the following steps:
[0070] Step 301: Establish a coupled physical model based on the transfer process between the hydrogen-rich storage tank and the hydrogen-poor storage tank.
[0071] In some embodiments of the present application, in order to establish a mathematical description of the transfer process between the hydrogen-rich storage tank and the hydrogen-poor storage tank in the organic liquid hydrogen storage system and the hydrogen refueling station system based on the organic liquid dehydrogenation, thereby quantifying the material flow relationship between the two systems and providing a theoretical basis for subsequent optimization, it is necessary to establish a coupled physical model based on the flow characteristics of the hydrogen-rich storage tank and the hydrogen-poor storage tank. The model is used to characterize the dynamic interaction between the storage tank in the hydrogen production system and the hydrogen refueling station, and to construct a mathematical expression in combination with the storage tank capacity constraint, transportation frequency and hydrogen supply and demand balance. In this way, by establishing a coupled physical model, the storage tank can achieve a dynamic balance of material flow in the hydrogen energy storage and release link, improve the utilization rate of the storage tank, and optimize the coordinated operation mechanism of the hydrogen storage and dehydrogenation process, thereby improving the economy and operational stability of the system.
[0072] In a specific example, when designing a linkage model for a wind-solar hydrogen production system and an urban hydrogen refueling station, a mathematical description of the flow between hydrogen-rich and hydrogen-depleted tanks can be established based on changes in wind speed and solar radiation. Furthermore, a tank transportation time window and material flow constraints are constructed based on the dynamic needs of the hydrogen refueling station. The resulting optimized tank transportation strategy enables the hydrogen storage system to dynamically respond to changes in hydrogen refueling station demand, while reducing resource waste during storage and improving the adaptability and stability of the hydrogen supply chain.
[0073] In step 302 , the demand quantification relationship formed by the impact of market fluctuations on hydrogenation demand is used as a constraint condition of the coupled physical model, and a parameter optimization model is established under a preset optimization target.
[0074] In some embodiments of the present application, in order to use the demand quantification relationship formed by the impact of market fluctuations on hydrogen demand as a constraint condition during the optimization process of the hydrogen refueling station system, it is ensured that the system can dynamically adapt to market demand fluctuations and optimize the hydrogen supply strategy at the same time. A parameter optimization model is established based on the coupled physical model of hydrogen-rich storage tanks and hydrogen-poor storage tanks, and the market demand quantification relationship is used as a constraint condition so that the optimization solution process can reasonably match the changes in hydrogen supply end production and user end demand fluctuations. "Demand quantification relationship" is a mathematical expression constructed based on market data. This relationship model can describe the changing trend of market hydrogen demand and, combined with the coupled physical model, enable the hydrogen refueling station system to consider the impact of market fluctuations when optimizing the solution. The "parameter optimization model" is based on preset optimization goals, such as minimizing operating costs or maximizing hydrogen supply stability, to perform optimization modeling, and calculate the optimal solution of storage tank configuration, dehydrogenation rate, hydrogen storage capacity and hydrogenation equipment scheduling strategy under constraints. In this way, by introducing market fluctuation constraints, the hydrogen refueling station system can dynamically adjust the tank transportation strategy and dehydrogenation reaction rate when facing changes in hydrogen demand, reduce resource waste caused by market demand fluctuations, and improve the operational stability and economy of the hydrogen refueling station.
[0075] In a specific example, during the optimization design of a wind and photovoltaic power generation hydrogen production system and an urban hydrogen refueling station, the system needs to adapt to fluctuations in industrial hydrogen demand and dynamic changes in transportation energy consumption. By collecting market hydrogen demand change data and combining it with the coupled physical model of hydrogen-rich and hydrogen-poor storage tanks, a parameter optimization model based on market demand changes has been constructed. Then, based on the market hydrogen demand forecast data, the tank transportation cycle, the dehydrogenation module operating load, and the hydrogen supply rate of the hydrogen refueling equipment can be optimized to ensure that the system can maintain a stable supply under different demand conditions. The optimized hydrogen refueling station system can adjust the hydrogen supply strategy in real time, improve the coordination ability of the hydrogen energy supply chain, reduce resource waste in the storage link, and improve the economic adaptability of the system under market fluctuations.
[0076] Step 303 : Solve the parameter optimization model to obtain multiple hydrogenation station design parameter values of the hydrogenation station system based on organic liquid dehydrogenation.
[0077] The method shown in this step has been described in step 202 and will not be repeated here.
[0078] Step 304 : configuring a hydrogenation station system based on organic liquid dehydrogenation according to the obtained multiple hydrogenation station design parameter values to obtain an optimized hydrogenation station system based on organic liquid dehydrogenation.
[0079] The method shown in this step has been explained in step 203 and will not be repeated here.
[0080] In the coupled design of the above-mentioned hydrogenation station system 10 based on organic liquid dehydrogenation and the organic liquid hydrogen storage system 11 based on renewable energy hydrogen production, the parameter optimization model is specifically constrained in the following manner:
[0081] Optionally, the optimization objective in the parameter optimization model is to minimize the total cost In the case of Characterized by the following formula:
[0082] ,
[0083] in, The total construction and maintenance costs of the organic liquid hydrogen storage system and the organic liquid dehydrogenation system, is the total site cost of the organic liquid hydrogen storage system and the organic liquid dehydrogenation system, The total labor cost of the organic liquid hydrogen storage system and the organic liquid dehydrogenation system, It is the total energy consumption cost of the organic liquid hydrogen storage system and the organic liquid dehydrogenation system.
[0084] Optional, Characterized by the following formula:
[0085] ,
[0086] in, The total equipment investment cost of the organic liquid hydrogen storage system and the organic liquid dehydrogenation system; The total equipment energy consumption cost of the organic liquid hydrogen storage system and the organic liquid dehydrogenation system; It is the total equipment operation and maintenance cost of the organic liquid hydrogen storage system and the organic liquid dehydrogenation system.
[0087] Optional, It is characterized by the following formula:
[0088] ,
[0089] in, The investment cost of the fan, The investment cost of photovoltaic equipment, The investment cost of energy storage batteries, The investment cost of the hydrogen production module, The investment cost of the reactor for the hydrogenation module, The investment cost of the reactor for the dehydrogenation module, The investment cost of the hydrogen-rich storage tank, The investment cost of the lean hydrogen storage tank, The investment cost of the gas pressure compression device of the hydrogen storage module, The investment cost of the hydrogen storage tank for the hydrogen storage module, is the investment cost of the hydrogenation equipment module;
[0090] Among them, the investment cost of each device It is characterized by the following formula:
[0091] ,
[0092] in ,
[0093] i represents each device: i=WT, PV, BESS, ELE, HR, DR, HST, DST, COM, HT, HD, is the unit cost of equipment i; is the rated capacity of device i, is the annualization factor of equipment i, l i is the expected life of equipment i, and r is the interest rate.
[0094] Optionally, in the case where the hydrogen storage module of the organic liquid dehydrogenation system includes a plurality of hydrogen storage tanks, and the hydrogenation equipment module of the organic liquid dehydrogenation system includes a plurality of hydrogenators, and the gas pressure compression device of the organic liquid dehydrogenation system includes a first compressor connected to the hydrogen storage module, a plurality of third compressors respectively connected to the hydrogen storage modules, and a second compressor connected to the first compressor and the third compressors, Characterized by the following formula:
[0095] ,
[0096] in, is the investment cost of the first compressor, is the investment cost of the second compressor, For the investment cost of each third compressor, is the number of the third compressor, is the annualization factor for the air compression device;
[0097] Calculated by the following formula:
[0098] ,
[0099] in, The investment cost for each hydrogen storage tank, is the number of hydrogen storage tanks, is the annualization factor for hydrogen storage tanks;
[0100] Calculated by the following formula:
[0101] ,
[0102] in, The investment cost for each hydrogen refueling machine is is the number of hydrogen refueling machines, is the annualization factor of the hydrogenation machine.
[0103] Optionally, in the case where the gas pressure compression device of the organic liquid dehydrogenation system includes a first compressor connected to the hydrogen storage module, a plurality of third compressors respectively connected to the hydrogen storage modules, and a second compressor connected to the first compressor and the third compressors, Calculated by the following formula:
[0104] ,
[0105] in, is the unit electricity price, is the rated power of the first compressor, is the rated power of the second compressor, is the rated power of the third compressor.
[0106] Optional, It is characterized by the following formula:
[0107] ,
[0108] in, is the maintenance cost factor.
[0109] Optionally, the parameter optimization model includes an organic liquid dehydrogenation sub-model for characterizing the dehydrogenation process of the dehydrogenation treatment, and the organic liquid dehydrogenation sub-model includes the following constraint formula:
[0110] Volume of the dehydrogenation reactor Constrained by the following formula:
[0111] ,
[0112] Wherein, a2 is the fitting parameter between the molar flow rate of hydrogen outlet during the dehydrogenation process and the reactor volume of the dehydrogenation module; is the flow rate of the hydrogen-rich organic liquid in the hydrogen-rich storage tank entering the reactor of the dehydrogenation module; is the conversion rate of the dehydrogenation reaction; is the relative molecular mass of the hydrogen-rich organic liquid;
[0113] Molar flow rate of hydrogen-rich organic liquid in dehydrogenation reaction Constrained by the following formula:
[0114] ;
[0115] The flow rate of hydrogen generated in the dehydrogenation reaction Constrained by the following formula:
[0116] ,
[0117] in, is the relative molecular mass of hydrogen, is the molar ratio of hydrogen gas to hydrogen-rich organic liquid in the dehydrogenation reaction equation;
[0118] Flow rate of hydrogen-poor organic liquid generated by dehydrogenation reaction Constrained by the following formula:
[0119] ,
[0120] in, is the relative molecular mass of the hydrogen-poor organic liquid, It is the molar ratio between the hydrogen-poor organic liquid and the hydrogen-rich organic liquid in the reaction equation of the dehydrogenation reaction.
[0121] Optionally, the volume of the reactor of the dehydrogenation module is formed by window operation Constrained by the following formula:
[0122] ;
[0123] in, is the lower limit of the operating window of the reactor of the dehydrogenation module, The upper limit of the operating window of the reactor of the dehydrogenation module; is the rated capacity of the reactor of the dehydrogenation module.
[0124] Optionally, the parameter optimization model includes a sub-model of the organic liquid dehydrogenation process of the hydrogenation station for characterizing the effect of the dehydrogenation process on the hydrogen-rich storage tank transfer process. The sub-model of the organic liquid dehydrogenation process of the hydrogenation station for the organic liquid storage tank includes the following constraint formula:
[0125] The time interval between the end of the kth time period and the end of the k+1th time period of the hydrogen-rich storage tank at the hydrogen refueling station The organic liquid balance in is governed by the following equation:
[0126] ,
[0127] in, is the mass of hydrogen-rich organic liquid in the hydrogen-rich storage tank at the end of the kth time period, is the mass of hydrogen-rich organic liquid in the hydrogen-rich storage tank at the end of the k+1th time period;
[0128] It is also constrained by the following formula based on the capacity of the hydrogen-rich storage tank:
[0129] ,
[0130] in, is the rated capacity of the hydrogen-rich storage tank; is the minimum storage state parameter of the hydrogen-rich storage tank, It is the maximum storage state parameter of the hydrogen-rich storage tank.
[0131] The storage state parameter is used to characterize the ratio of the storage volume of the organic liquid in the storage tank to the rated storage volume of the storage tank.
[0132] Optionally, the parameter optimization model includes a sub-model of the organic liquid dehydrogenation process of the hydrogenation station for characterizing the effect of the dehydrogenation process on the hydrogen-depleted tank transfer process. The sub-model includes the following constraint formula:
[0133] The time interval between the end of the kth time period and the end of the k+1th time period of the hydrogen-depleted storage tank at the hydrogen refueling station The organic liquid balance in is governed by the following equation:
[0134] ,
[0135] in, is the mass of hydrogen-poor organic liquid in the hydrogen-poor storage tank at the end of the kth time period, is the mass of the hydrogen-depleted organic liquid in the hydrogen-depleted storage tank at the end of the k+1th time period;
[0136] It is also constrained by the following formula based on the capacity of the lean hydrogen storage tank:
[0137] ;
[0138] in, is the rated capacity of the lean hydrogen storage tank, Indicates the minimum storage state parameter of the hydrogen-poor storage tank, Indicates the maximum storage state parameter of the hydrogen-depleted storage tank.
[0139] Optionally, the parameter optimization model includes a hydrogen station compressed hydrogen storage and hydrogen demand sub-model for characterizing the process of hydrogen delivery from the hydrogen storage module to the hydrogenation equipment module. The hydrogen station compressed hydrogen storage and hydrogen demand sub-model includes the following constraint formulas:
[0140] The time interval between the end of the kth time period and the end of the k+1th time period for the hydrogen buffer tank The hydrogen balance in is constrained by the following formula:
[0141] ,
[0142] ,
[0143] in, is the amount of hydrogen in the hydrogen buffer tank at the end of the kth time period, is the amount of hydrogen in the hydrogen buffer tank at the end of the k+1th time period, The flow rate of hydrogen generated by the reactor of the dehydrogenation module entering the hydrogen buffer tank, is the flow rate of hydrogen from the hydrogen buffer tank entering the gas pressure compression device of the hydrogen storage module, is the rated capacity of the hydrogen storage cylinder group, Indicates the minimum storage state parameter of the hydrogen buffer tank, Indicates the maximum storage state parameter of the hydrogen buffer tank.
[0144] Optionally, the parameter optimization model includes a hydrogen station compressed hydrogen storage and hydrogen demand sub-model for characterizing the process of hydrogen delivery from the hydrogen storage module to the hydrogenation equipment module. The hydrogen station compressed hydrogen storage and hydrogen demand sub-model includes the following constraint formulas:
[0145] When the hydrogen in the hydrogen buffer tank is fed into the hydrogen storage tank through a first compressor, a second compressor, and a third compressor connected in sequence through multi-stage compression, the power of the first compressor is , the power of the second compressor , the power of the third compressor They are respectively subject to the following constraints:
[0146] ,
[0147] ,
[0148] ,
[0149] in, is the specific heat capacity at constant pressure, is the temperature of the compressor, is the efficiency of the compressor, is the specific heat ratio; is the molar flow rate of hydrogen in the compressor, is the pressure of hydrogen in the hydrogen buffer tank, The output pressure of the first compressor and the output pressure of the second compressor are, The output pressure of the second compressor is the output of the third compressor, The pressure of the hydrogen storage tank output by the third compressor.
[0150] Optional, according to right Unit conversion, It is also subject to the following formula:
[0151] ;
[0152] Optionally, based on upper and lower flow rate constraints in the compressor, It is also subject to the following formula:
[0153] ,
[0154] in, is the minimum value of the compressor flow rate, is the maximum value of the compressor flow rate.
[0155] Optionally, based on the maximum value of the third compressor flow rate , It is also subject to the following formula:
[0156] ,
[0157] in, is the number of the third compressor.
[0158] Optionally, based on the pressure relationship between the two stages of the compressor, It is also subject to the following formula:
[0159] ;
[0160] Optionally, the hydrogen gas after passing through the compressor is stored in a hydrogen storage tank. It is also subject to the following formula:
[0161] .
[0162] Optionally, the power of the first compressor With the power of the second compressor It is also subject to the following formula:
[0163] ,
[0164] ,
[0165] in, is the rated power of the first compressor, is the rated power of the second compressor.
[0166] Optionally, there is an investment cost in the first compressor , the second compressor has an investment cost Under constraints, and It is also subject to the following formula:
[0167] ,
[0168] ,
[0169] in, and are the investment cost coefficients of the compressor respectively.
[0170] Optionally, the parameter optimization model includes a hydrogen station compressed hydrogen storage and hydrogen demand sub-model for characterizing the process of hydrogen delivery from the hydrogen storage module to the hydrogenation equipment module. The hydrogen station compressed hydrogen storage and hydrogen demand sub-model includes the following constraint formulas:
[0171] The time interval between the end of the kth time period and the end of the k+1th time period of the hydrogen storage tank of the hydrogen storage module The hydrogen balance in is governed by the following formula:
[0172] ,
[0173] in, is the amount of hydrogen in the hydrogen storage tank at the end of the kth time period, is the amount of hydrogen in the hydrogen storage tank at the end of the k+1th time period, The flow rate of hydrogen from the hydrogen storage module's gas pressure compression device into the hydrogen storage tank, The flow rate of hydrogen from the hydrogen storage tank into the hydrogenation equipment module.
[0174] Optionally, the hydrogen gas state in the hydrogen storage tank is constrained by the following formula:
[0175] ,
[0176] Where P is the hydrogen pressure, V is the hydrogen volume, is the gas constant, m is the mass of hydrogen, Z is the compressibility factor, and T is the temperature of hydrogen;
[0177] Calculated according to the following formula:
[0178] ,
[0179] in, is the density of hydrogen, 、 、 are fitting parameters, here It represents the ratio of one hundred Kelvin to absolute temperature. is the ratio of hydrogen density to one megapascal, 、 、 as well as 、 All are dimensionless quantities.
[0180] Optionally, the hydrogen gas pressure in the hydrogen tank can be adjusted according to the safety pressure limit of the hydrogen tank. is subject to the following formula:
[0181] ,
[0182] in, is the minimum safe pressure of the hydrogen storage tank, is the maximum safe pressure of the hydrogen storage tank;
[0183] It is also subject to the following formula based on the capacity of the hydrogen storage tank:
[0184] ,
[0185] in, is the rated capacity of the hydrogen storage tank, Indicates the minimum storage state parameter of the hydrogen storage tank, Indicates the maximum storage state parameter of the hydrogen storage tank;
[0186] The hydrogen volume in the hydrogen storage tank is also constrained by the following formula to ensure that the hydrogen volume at the beginning and end of the hydrogen storage tank is equal during the operation cycle (usually 1 day):
[0187] .
[0188] Optionally, the parameter optimization model includes a hydrogen station compressed hydrogen storage and hydrogen demand sub-model for characterizing the process of hydrogen delivery from the hydrogen storage module to the hydrogenation equipment module. The hydrogen station compressed hydrogen storage and hydrogen demand sub-model includes the following constraint formulas:
[0189] According to the hydrogen source of the hydrogen refueling machine, the flow rate of the hydrogen refueling machine is is subject to the following formula:
[0190] ,
[0191] in, The flow rate of hydrogen from the hydrogen storage tank into the hydrogenation equipment module.
[0192] Optionally, in the case where the hydrogenation equipment module includes multiple hydrogenators, according to the rated flow rate limitation of the hydrogen storage tank, It is also subject to the following formula:
[0193] ;
[0194] in, is the lower limit of the flow rate of the hydrogenator, is the upper limit of the flow rate of the hydrogenator, is the number of hydrogen refueling machines.
[0195] Optionally, when the energy supply module of the organic liquid hydrogen storage system based on renewable energy hydrogen production includes a wind turbine and a photovoltaic device, the parameter optimization model includes a wind-solar power generation sub-model for characterizing the relationship between the energy supply module and the output power of the wind turbine and the photovoltaic device. The wind-solar power generation sub-model includes the following constraint formula:
[0196] ,
[0197] in, Indicates the total power generation of the energy supply module in the kth time period, represents the power generation of the wind turbine in the kth time period; represents the power generation of the photovoltaic device in the kth time period;
[0198] It is also constrained by the average power generation formula of the wind turbine:
[0199] ,
[0200] in The capacity factor of wind power generation indicates the power that can be generated by a wind turbine with a rated power of 1kW. It is determined by local meteorological conditions.
[0201] It is also constrained by the average power generation formula of the photovoltaic equipment;
[0202] ,
[0203] in is the capacity factor of photovoltaic power generation; is the rated power of the photovoltaic panel.
[0204] Optionally, when the energy supply module of the organic liquid hydrogen storage system based on renewable energy hydrogen production also includes an energy storage battery, the renewable energy power generation system can supply the hydrogen production module and the energy storage battery, or abandon electricity. The wind and solar power generation sub-model also includes a battery energy storage sub-model between the hydrogen production module and the battery energy storage system. The battery energy storage sub-model includes the following constraint formulas:
[0205] ;
[0206] in, Indicates the output power of the energy supply module to the hydrogen production module in the kth time period, Indicates the output power of the energy supply module to the energy storage battery in the kth time period, Indicates the abandoned power of the energy supply module in the kth time period.
[0207] Optionally, when the energy supply module of the organic liquid hydrogen storage system for hydrogen production based on renewable energy includes power generation equipment and energy storage batteries, the parameter optimization model includes an electrolyzer sub-model for characterizing the input power of the hydrogen production module of the organic liquid hydrogen storage system for hydrogen production based on renewable energy. The electrolyzer sub-model includes the following constraint formula:
[0208] ,
[0209] in, is the input power of the hydrogen production module in the kth time period; is the output power of the power generation equipment in the kth time period; is the output power of the energy storage battery in the kth time period.
[0210] Optional, It is also constrained by the flow rate relationship formula between the hydrogen production module and the hydrogenation module:
[0211] ;
[0212] in, The flow rate of hydrogen produced by the hydrogen production module to the hydrogenation module; It is the electric-hydrogen conversion value of the hydrogen production module.
[0213] Optional, It is also subject to the start and stop condition relationship formula for the hydrogen production module:
[0214] ;
[0215] in, is the rated capacity of the hydrogen production module; It is the lower limit of the operating power of the hydrogen production module.
[0216] Optionally, when the energy supply module of the organic liquid hydrogen storage system based on renewable energy hydrogen production includes power generation equipment and energy storage batteries, the parameter optimization model includes a battery energy storage sub-model for characterizing the charging and discharging process of the energy storage battery. The battery energy storage sub-model includes the following constraint formula:
[0217] Charging power of energy storage battery Input power of power generation equipment to energy storage battery Constrained by the following formula:
[0218] ,
[0219] in, It is the charging efficiency of the energy storage battery.
[0220] Optional, discharge power of energy storage battery Input power of the hydrogen production module to the energy storage battery Constrained by the following formula:
[0221] ,
[0222] in, is the discharge efficiency of the energy storage battery.
[0223] Optionally, the amount of energy stored in the battery at the end of the kth time period and the electricity at the end of the k+1th time period The relationship between is constrained by the following formula:
[0224] ,
[0225] in, Indicates the time interval from the end of the kth time period to the end of the k+1th time period.
[0226] Optional, It is also subject to the battery capacity formula for energy storage batteries:
[0227] ,
[0228] in, is the rated capacity of the energy storage battery; is the minimum state of charge of the energy storage battery, It is the maximum state of charge of the energy storage battery.
[0229] Optional, and It is also subject to the power limit formula for the energy storage battery:
[0230] ,
[0231] ,
[0232] ,
[0233] in, is the maximum power of charging and discharging of the energy storage battery, and are mutually constrained binary variables, When , it means the energy storage battery is in charging state. , it indicates that the energy storage battery is in discharge state.
[0234] Optionally, the parameter optimization model includes an organic liquid hydrogen storage sub-model for characterizing the hydrogenation process of the hydrogenation module. The organic liquid hydrogen storage sub-model includes the following constraint formula:
[0235] Volume of the hydrogenation reactor Constrained by the following formula:
[0236] ,
[0237] Wherein, a1 is the fitting parameter between the molar flow rate of the hydrogen inlet during the hydrogenation process and the reactor volume of the hydrogenation module; The flow rate of hydrogen produced by the hydrogen production module; is the conversion rate of the hydrogenation reaction when the hydrogen storage medium reacts with hydrogen in the reactor of the hydrogenation module; is the relative molecular mass of hydrogen.
[0238] Molar flow rate of hydrogen in hydrogenation reaction Constrained by the following formula:
[0239] ;
[0240] Optionally, the hydrogen-poor organic liquid (LOHC) in the hydrogen-poor storage tank during the hydrogenation reaction - ) Flow rate into the reactor of the hydrogenation module Constrained by the following formula:
[0241] ,
[0242] in, is the relative molecular mass of the hydrogen-poor organic liquid, is the molar ratio of hydrogen gas to hydrogen-poor organic liquid in the reaction equation of hydrogenation reaction; is the molar flow rate of hydrogen in the hydrogenation reaction;
[0243] Flow rate of hydrogen-rich organic liquid flowing into the hydrogen-rich storage tank Constrained by the following formula:
[0244] ,
[0245] in, is the relative molecular mass of the hydrogen-rich organic liquid, is the molar ratio of hydrogen gas to hydrogen-rich organic liquid in the reaction equation of hydrogenation reaction; is the molar flow rate of hydrogen in the hydrogenation reaction.
[0246] Optionally, the volume of the reactor in the hydrogenation module is determined by window operation. Constrained by the following formula:
[0247] ;
[0248] in, is the lower limit of the operating window of the reactor of the hydrogenation module, The upper limit of the operating window of the reactor of the hydrogenation module; is the rated capacity of the reactor of the hydrogenation module.
[0249] Optionally, the parameter optimization model includes a hydrogenation process organic liquid storage tank sub-model for characterizing the effect of the hydrogenation process on the hydrogen-rich storage tank transfer process. The hydrogenation process organic liquid storage tank sub-model includes the following constraint formula:
[0250] The time interval between the end of the kth time period and the end of the k+1th time period of the hydrogen-rich storage tank on the hydrogen storage system side The organic liquid balance in is governed by the following equation:
[0251] ,
[0252] in, is the mass of hydrogen-rich organic liquid in the hydrogen-rich storage tank at the end of the kth time period, is the mass of hydrogen-rich organic liquid in the hydrogen-rich storage tank at the end of the k+1th time period.
[0253] Optionally, the mass of the hydrogen-rich organic liquid in the hydrogen-rich storage tank is also constrained by the following formula to represent that the initial and final capacities of the hydrogen-rich storage tank are equal during the operation cycle (usually 1 day):
[0254] ;
[0255] It is also constrained by the following formula based on the capacity of the hydrogen-rich storage tank:
[0256] ,
[0257] in, is the rated capacity of the hydrogen-rich storage tank; is the minimum storage state parameter of the hydrogen-rich storage tank, It is the maximum storage state parameter of the hydrogen-rich storage tank.
[0258] Optionally, the parameter optimization model includes a hydrogenation process organic liquid storage tank sub-model for characterizing the effect of the hydrogenation process on the hydrogen-depleted storage tank transfer process. The hydrogenation process organic liquid storage tank sub-model includes the following constraint formulas:
[0259] The time interval between the end of the kth time period and the end of the k+1th time period for the hydrogen storage tank on the hydrogen storage system side The organic liquid balance in is governed by the following equation:
[0260] ,
[0261] in, is the mass of hydrogen-rich organic liquid in the hydrogen-poor storage tank at the end of the kth time period, is the mass of hydrogen-rich organic liquid in the hydrogen-poor storage tank at the end of the k+1th time period.
[0262] Optional, It is also constrained by the following formula based on the capacity of the lean hydrogen storage tank:
[0263] ;
[0264] in, is the rated capacity of the lean hydrogen storage tank; Indicates the minimum storage state parameter of the hydrogen-poor storage tank, Indicates the maximum storage state parameter of the hydrogen-depleted storage tank.
[0265] In summary, in the embodiment of the present application, the stable input of the hydrogen-rich organic liquid storage tank is achieved through the hydrogen-rich storage tank receiving module, so that the hydrogenation station system for dehydrogenation of organic liquid can efficiently receive and process the hydrogen-rich substances at the hydrogen storage end, providing a stable source for hydrogen supply. This mechanism ensures the continuity of the hydrogen production link, and helps to improve the supply and demand imbalance caused by fluctuations in the output of the hydrogen supply end during the operation of the hydrogenation station; then, the hydrogen-rich organic liquid in the hydrogen-rich storage tank undergoes a catalytic dehydrogenation reaction in the dehydrogenation module to release high-purity hydrogen, while restoring the organic compound to a hydrogen-poor state. After the release of hydrogen, it enters the hydrogen storage module to buffer the impact of fluctuations in the hydrogen supply end on the hydrogenation station, ensuring that the hydrogenation equipment can operate stably under different load conditions. At the same time, the hydrogen undergoes appropriate pressure regulation and storage optimization in the storage module, so that the hydrogen supply has a stronger adjustment capability to meet the dynamic changes in user-end demand. Finally, the hydrogenation equipment module extracts hydrogen from the hydrogen storage module and inputs it into the hydrogen-using equipment to realize the terminal application of hydrogen energy. At the same time, the dehydrogenated hydrogen storage tank is transported out of the module through the dehydrogenated hydrogen storage tank and returned to the organic liquid hydrogen storage system to complete the closed-loop circulation of the storage tank. This circulation mechanism ensures the efficient utilization of the storage tank and reduces the waste of resources caused by the idle storage tank, so that the hydrogen storage-dehydrogenation-hydrogen supply process has a higher collaborative optimization capability. Therefore, the embodiment of the present application adopts a modular design so that the hydrogen refueling station can not only match the output changes of the hydrogen supply end, but also dynamically adjust according to the load fluctuations at the user end, thereby enhancing the stability and flexibility of the hydrogen supply. Through efficient dehydrogenation treatment, hydrogen storage and storage tank recycling mechanism, the problems of low dehydrogenation reaction efficiency, insufficient storage tank recycling rate, and limited collaborative optimization capability of the hydrogen refueling station and the hydrogen production end in the prior art are effectively solved, providing an innovative solution for the sustainable development of the hydrogen energy industry.
[0266] like Figure 6 As shown, a complete planning process is provided according to an embodiment of the present application:
[0267] S1, Construction of the System Structure of an Organic Liquid Hydrogen Storage and Refueling Station Based on Renewable Energy Hydrogen Production: Based on the design and operation process of renewable energy hydrogen production and storage, organic liquid hydrogen storage and dehydrogenation, and hydrogen refueling stations, a superstructure model of the entire system is constructed. This step aims to clarify the core modules of the system and their interactions, providing a foundation for subsequent modeling and optimization;
[0268] S2, system economic optimization target construction:
[0269] Comprehensively consider the investment cost and operating cost of the equipment, establish the system economic optimization goal, clarify the optimization direction with the goal of minimizing the total cost, and provide a basis for subsequent model optimization;
[0270] S3, Renewable Energy Hydrogen Production and Storage System Modeling: Mathematical models are established for wind and solar power generation, electrolyzers, battery energy storage, organic liquid hydrogenation reactors, and storage tanks, focusing on analyzing the dynamic coupling characteristics of the power generation side and the hydrogen storage system;
[0271] S4, Modeling of the dehydrogenation system and compressed hydrogen storage system of the hydrogen refueling station: Constructing a model of the organic liquid dehydrogenation module, compressor, hydrogen storage tank group, and hydrogen demand in the hydrogen refueling station to ensure that the hydrogen refueling station can meet dynamic hydrogen demand while ensuring the efficiency and safety of the dehydrogenation process and storage tank operation;
[0272] S5, Solving the optimization model of the organic liquid hydrogen storage and refueling station system and analyzing the results: Based on the aforementioned modeling results and optimization objectives, the optimization solution algorithm is used to solve the optimal economy, configuration scheme and scheduling strategy of the system, and the optimization results are analyzed to guide practical applications.
[0273] like Figure 7 As shown, another complete planning process is provided according to an embodiment of the present application:
[0274] R1, System Structure Construction: Based on system requirements and design objectives, build the overall structural model of the hydrogenation station system based on organic liquid dehydrogenation to lay the foundation for subsequent optimization;
[0275] R2, optimization objective function construction: establish the system optimization objective function, comprehensively consider equipment investment, operation and maintenance costs, to achieve the best economic benefits;
[0276] R3, system modeling: Construct mathematical models of organic liquid dehydrogenation and storage tank models, compressors, hydrogen storage bottles, and hydrogen demand, and describe the dynamic operating characteristics of each module;
[0277] R4, Organic Liquid Dehydrogenation Model: Develop an organic liquid dehydrogenation model to describe the relationship between the reactant inlet flow rate and the reactor volume in the dehydrogenation reaction, as well as the operating window constraints of the dehydrogenation reactor;
[0278] R5, organic liquid storage tank model for the dehydrogenation process of organic liquids at hydrogen refueling stations: describes the mass balance constraints of hydrogen-rich and hydrogen-poor organic liquid storage tanks, as well as the upper and lower capacity constraints of the storage tanks;
[0279] R6, hydrogen buffer tank model for hydrogen refueling stations: describes the mass balance constraints and upper and lower capacity constraints of the hydrogen buffer tank;
[0280] R7, hydrogen station compressor model: describes the power calculation and upper and lower flow rate constraints of the compressor, as well as the compression pressure constraints of each level of the compressor;
[0281] R8, hydrogen storage tank group model of hydrogen refueling station: describes the mass balance constraints and upper and lower pressure constraints of the hydrogen storage tank group, and constructs the real gas state equation in the hydrogen storage tank group;
[0282] R9, hydrogen station refueling machine model: describes the upper and lower flow rate constraints of the hydrogen refueling machine;
[0283] R10, system coupling modeling: Establish a coupling model between the hydrogen production system and the hydrogenation system, and realize the dynamic connection between the two systems through the hydrogenation reactor;
[0284] R11, Economic and technical parameter input: Define the system economic and technical parameters, including equipment cost, operating expenses and reaction kinetics data, as well as time series data on the hydrogen load side of the hydrogen refueling station, to support model optimization;
[0285] R12, Model Solving: Use optimization algorithms to solve the model, aiming to minimize the total system cost and obtain the optimal configuration and scheduling solution. For example, mixed-integer linear programming (MILPP) or nonlinear programming (NLP) methods can be used to solve optimization models that contain discrete variables (such as the number of devices) and continuous variables (such as power) by calling the CPLEX solver in the General Algebraic Modeling System (GAMS).
[0286] R13, Optimization Result Analysis: Analyze the optimization results, including the capacity configuration and operating characteristics of each device, to provide guidance for actual system design and operation.
[0287] refer to Figure 8 , which shows an optimization device 40 of a hydrogenation station system based on organic liquid dehydrogenation provided in an embodiment of the present application, comprising:
[0288] A modeling module 401 is configured to establish a parameter optimization model constrained by the impact of market fluctuations on hydrogen refueling demand based on a coupled physical model used to characterize the process of transferring hydrogen-rich storage tanks and hydrogen-lean storage tanks between the organic liquid hydrogen storage system and the hydrogen refueling station system based on organic liquid dehydrogenation;
[0289] A hydrogen storage parameter solving module 402 is used to solve a parameter optimization model to obtain multiple hydrogenation station design parameter values for a hydrogenation station system based on organic liquid dehydrogenation;
[0290] The hydrogen storage configuration module 403 is used to configure the hydrogenation station system based on organic liquid dehydrogenation according to the obtained multiple hydrogenation station design parameter values to obtain an optimized hydrogenation station system based on organic liquid dehydrogenation.
[0291] Optionally, the modeling module 401 includes:
[0292] The coupling model submodule is used to establish a coupling physical model based on the transfer process of the hydrogen-rich storage tank and the hydrogen-poor storage tank;
[0293] The optimization model submodule is used to use the demand quantification relationship formed by the impact of market fluctuations on hydrogen refueling demand as the constraint condition of the coupled physical model, and establish a parameter optimization model under the preset optimization target.
[0294] In summary, in the embodiment of the present application, the stable input of the hydrogen-rich organic liquid storage tank is achieved through the hydrogen-rich storage tank receiving module, so that the hydrogenation station system for dehydrogenation of organic liquid can efficiently receive and process the hydrogen-rich substances at the hydrogen storage end, providing a stable source for hydrogen supply. This mechanism ensures the continuity of the hydrogen production link, and helps to improve the supply and demand imbalance caused by fluctuations in the output of the hydrogen supply end during the operation of the hydrogenation station; then, the hydrogen-rich organic liquid in the hydrogen-rich storage tank undergoes a catalytic dehydrogenation reaction in the dehydrogenation module to release high-purity hydrogen, while restoring the organic compound to a hydrogen-poor state. After the release of hydrogen, it enters the hydrogen storage module to buffer the impact of fluctuations in the hydrogen supply end on the hydrogenation station, ensuring that the hydrogenation equipment can operate stably under different load conditions. At the same time, the hydrogen undergoes appropriate pressure regulation and storage optimization in the storage module, so that the hydrogen supply has a stronger adjustment capability to meet the dynamic changes in user-end demand. Finally, the hydrogenation equipment module extracts hydrogen from the hydrogen storage module and inputs it into the hydrogen-using equipment to realize the terminal application of hydrogen energy. At the same time, the dehydrogenated hydrogen storage tank is transported out of the module through the dehydrogenated hydrogen storage tank and returned to the organic liquid hydrogen storage system to complete the closed-loop circulation of the storage tank. This circulation mechanism ensures the efficient utilization of the storage tank and reduces the waste of resources caused by the idle storage tank, so that the hydrogen storage-dehydrogenation-hydrogen supply process has a higher collaborative optimization capability. Therefore, the embodiment of the present application adopts a modular design so that the hydrogen refueling station can not only match the output changes of the hydrogen supply end, but also dynamically adjust according to the load fluctuations at the user end, thereby enhancing the stability and flexibility of the hydrogen supply. Through efficient dehydrogenation treatment, hydrogen storage and storage tank recycling mechanism, the problems of low dehydrogenation reaction efficiency, insufficient storage tank recycling rate, and limited collaborative optimization capability of the hydrogen refueling station and the hydrogen production end in the prior art are effectively solved, providing an innovative solution for the sustainable development of the hydrogen energy industry.
[0295] Reference Figure 9 , is a block diagram of an electronic device 500 according to another embodiment of the present invention. For example, electronic device 500 may be provided as a server. Electronic device 500 may include one or more of the following components: a processing component 502, a memory 504, a power supply component 506, a multimedia component 508, an audio component 510, an input / output (I / O) interface 512, a sensor component 514, and a communication component 516.
[0296] Electronic device 500 includes a processing component 502, which further includes one or more processors, and a memory resource represented by memory 504 for storing instructions executable by processing component 502, such as applications. The application stored in memory 504 may include one or more modules, each corresponding to a set of instructions. In addition, processing component 502 is configured to execute instructions to perform the methods provided in the embodiments of the present application.
[0297] The processing component 502 generally controls the overall operation of the electronic device 500, such as operations associated with display, phone calls, data communications, camera operation, and recording operations. The processing component 502 may include one or more processors 520 to execute instructions to perform all or part of the steps of the above-described method. In addition, the processing component 502 may include one or more modules to facilitate interaction between the processing component 502 and other components.
[0298] The memory 504 is used to store various types of data to support operations in the electronic device 500. The memory 504 can be implemented by any type of volatile or non-volatile memory device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic disk, or optical disk.
[0299] The power supply assembly 506 provides power to the various components of the electronic device 500. The power supply assembly 506 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power to the electronic device 500.
[0300] Multimedia component 508 includes an interface that provides an output interface between electronic device 500 and a user. In some embodiments, the interface may include a liquid crystal display (LCD) and a touch panel (TP). In some embodiments, multimedia component 508 includes a front-facing camera and / or a rear-facing camera.
[0301] The audio component 510 is used to output and / or input audio signals. The received audio signals can be further stored in the memory 504 or transmitted via the communication component 516.
[0302] The input / output (I / O) interface 512 provides an interface between the processing component 502 and the peripheral interface module.
[0303] Sensor assembly 514 includes one or more sensors for providing various status assessments for electronic device 500. For example, sensor assembly 514 can detect the open / closed state of electronic device 500 and the relative positioning of components. Sensor assembly 514 can include a proximity sensor configured to detect the presence of nearby objects without any physical contact. Sensor assembly 514 can also include an optical sensor, such as a CMOS or CCD image sensor, for use in imaging applications.
[0304] The communication component 516 is used to facilitate wired or wireless communication between the electronic device 500 and other devices. The electronic device 500 can access a wireless network based on a communication standard, such as WiFi, a carrier network (such as 2G, 3G, 4G or 5G), or a combination thereof.
[0305] In an exemplary embodiment, the electronic device 500 may be implemented by one or more application-specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic components to implement the methods provided in the embodiments of the present application.
[0306] In an exemplary embodiment, a non-transitory computer-readable storage medium including instructions is also provided, such as a memory 504 including instructions, which can be executed by the processor 520 of the electronic device 500 to perform the above method.
[0307] The electronic device 500 may also operate based on an operating system stored in the memory 504, such as Windows Server™, Mac OS X™, Unix™, Linux™, FreeBSD™, or the like.
[0308] It should be noted that, for the sake of simplicity, the method embodiments of the present application are described as a series of action combinations. However, those skilled in the art should be aware that the embodiments of the present application are not limited by the order of the actions described, because according to the embodiments of the present application, certain steps can be performed in other orders or simultaneously. Secondly, those skilled in the art should also be aware that the embodiments described in the specification are all preferred embodiments, and the actions involved are not necessarily required by the embodiments of the present application.
[0309] Those skilled in the art will readily appreciate other embodiments of the present application after considering the specification and practicing the application disclosed herein. This application is intended to cover any variations, uses, or adaptations of the present application that follow the general principles of the present application and include common knowledge or customary techniques in the art not disclosed herein. The description and examples are to be considered as exemplary only, and the true scope and spirit of the present application are indicated by the following claims.
[0310] It should be understood that the present application is not limited to the exact structures described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present application is limited only by the appended claims.
Claims
1. A hydrogenation station system based on organic liquid dehydrogenation, characterized in that: include: Hydrogen-rich storage tank receiving module, dehydrogenation module, hydrogen storage module, hydrogenation equipment module and hydrogen-poor storage tank transport module; The hydrogen-rich storage tank receiving module is used to receive a hydrogen-rich storage tank storing hydrogen-rich organic liquid from the organic liquid hydrogen storage system; The dehydrogenation module is used to dehydrogenate the hydrogen-rich organic liquid in the hydrogen-rich storage tank to obtain hydrogen and hydrogen-poor organic liquid; The hydrogen-depleted storage tank transport module is used to store the hydrogen-depleted organic liquid generated by the dehydrogenation module and transport the hydrogen-depleted storage tank storing the hydrogen-depleted organic liquid to the organic liquid hydrogen storage system; the hydrogen refueling station system is configured according to multiple hydrogen refueling station design parameter values obtained by solving the parameter optimization model; The parameter optimization model is established based on a coupled physical model for characterizing the dynamic equilibrium characteristics of a process of transferring the hydrogen-rich storage tank and the hydrogen-poor storage tank between the hydrogen refueling station system and the organic liquid hydrogen storage system; The hydrogen storage module is used to store the hydrogen obtained by the dehydrogenation process; The hydrogenation equipment module is used to input the hydrogen stored in the hydrogen storage module into hydrogen equipment.
2. The hydrogenation station system based on organic liquid dehydrogenation according to claim 1, characterized in that: The organic liquid hydrogen storage system is an organic liquid hydrogen storage system based on renewable energy hydrogen production.
3. The hydrogenation station system based on organic liquid dehydrogenation according to claim 1, characterized in that: The hydrogen storage module includes a hydrogen buffer tank and a hydrogen storage bottle group connected via a gas pressure compression device; The hydrogen buffer tank is used to store the hydrogen obtained by the dehydrogenation process under a first pressure range; The gas pressure compression device is used to pressurize the hydrogen stored in the hydrogen buffer tank to a second gas pressure range, and input the hydrogen pressurized to the second gas pressure range into the hydrogen storage bottle group; The maximum value of the first air pressure range is smaller than the minimum value of the second air pressure range.
4. The hydrogenation station system based on organic liquid dehydrogenation according to claim 3, characterized in that: The gas pressure compression device includes a plurality of gas compressors connected in series.
5. A method for optimizing a hydrogenation station system based on organic liquid dehydrogenation, characterized in that: include: Based on a coupled physical model that characterizes the dynamic equilibrium characteristics of the process of transferring hydrogen-rich and hydrogen-lean tanks between an organic liquid hydrogen storage system and a hydrogen refueling station system based on organic liquid dehydrogenation, a parameter optimization model constrained by the impact of market fluctuations on hydrogen refueling demand was established. Solving the parameter optimization model to obtain a plurality of hydrogenation station design parameter values of the hydrogenation station system based on organic liquid dehydrogenation; Configuring the hydrogenation station system based on organic liquid dehydrogenation according to the obtained multiple hydrogenation station design parameter values to obtain an optimized hydrogenation station system based on organic liquid dehydrogenation; The hydrogen refueling station system includes: Hydrogen-rich storage tank receiving module, dehydrogenation module, hydrogen storage module, hydrogenation equipment module and hydrogen-poor storage tank transport module; The hydrogen-rich storage tank receiving module is used to receive a hydrogen-rich storage tank storing hydrogen-rich organic liquid from the organic liquid hydrogen storage system; The dehydrogenation module is used to dehydrogenate the hydrogen-rich organic liquid in the hydrogen-rich storage tank to obtain hydrogen and hydrogen-poor organic liquid; The hydrogen-poor storage tank transport module is used to store the hydrogen-poor organic liquid generated by the dehydrogenation module and transport the hydrogen-poor storage tank storing the hydrogen-poor organic liquid to the organic liquid hydrogen storage system; The hydrogen storage module is used to store the hydrogen obtained by the dehydrogenation process; The hydrogenation equipment module is used to input the hydrogen stored in the hydrogen storage module into hydrogen equipment.
6. The method for optimizing a hydrogenation station system based on organic liquid dehydrogenation according to claim 5, characterized in that: The method establishes a parameter optimization model constrained by the impact of market fluctuations on hydrogen refueling demand based on a coupled physical model for characterizing the process of transferring hydrogen-rich storage tanks and hydrogen-lean storage tanks between an organic liquid hydrogen storage system and a hydrogen refueling station system based on organic liquid dehydrogenation, including: Establishing the coupled physical model according to the transfer process between the hydrogen-rich storage tank and the hydrogen-poor storage tank; The demand quantification relationship formed by the impact of market fluctuations on hydrogenation demand is used as a constraint condition of the coupled physical model, and a parameter optimization model is established under a preset optimization target.
7. The method for optimizing a hydrogenation station system based on organic liquid dehydrogenation according to claim 5, characterized in that: The parameter optimization model includes an organic liquid dehydrogenation sub-model for characterizing the dehydrogenation process of the dehydrogenation treatment, and the organic liquid dehydrogenation sub-model includes the following constraint formula: Volume of the reactor of the dehydrogenation module Constrained by the following formula: , Wherein, a2 is the fitting parameter between the molar flow rate of hydrogen outlet during the dehydrogenation process and the reactor volume of the dehydrogenation module; is the flow rate of the hydrogen-rich organic liquid in the hydrogen-rich storage tank entering the reactor of the dehydrogenation module; is the conversion rate of the dehydrogenation reaction; is the relative molecular mass of the hydrogen-rich organic liquid; Molar flow rate of hydrogen-rich organic liquid in dehydrogenation reaction Constrained by the following formula: ; The flow rate of hydrogen generated in the dehydrogenation reaction Constrained by the following formula: , in, is the relative molecular mass of hydrogen, is the molar ratio of hydrogen gas to hydrogen-rich organic liquid in the dehydrogenation reaction equation; Flow rate of hydrogen-poor organic liquid generated by dehydrogenation reaction Constrained by the following formula: , in, is the relative molecular mass of the hydrogen-poor organic liquid, is the molar ratio of the hydrogen-poor organic liquid to the hydrogen-rich organic liquid in the reaction equation of the dehydrogenation reaction; The volume of the reactor of the dehydrogenation module formed by the window operation Constrained by the following formula: ; in, is the lower limit of the operating window of the reactor of the dehydrogenation module, The upper limit of the operating window of the reactor of the dehydrogenation module; is the rated capacity of the reactor of the dehydrogenation module.
8. The method for optimizing a hydrogenation station system based on organic liquid dehydrogenation according to claim 5, wherein: The parameter optimization model includes a sub-model of the organic liquid dehydrogenation process of the hydrogenation station for characterizing the effect of the dehydrogenation process on the hydrogen-rich storage tank transfer process. The sub-model of the organic liquid dehydrogenation process of the hydrogenation station for the organic liquid storage tank includes the following constraint formula: The time interval between the end of the kth time period and the end of the k+1th time period of the hydrogen-rich storage tank at the hydrogen refueling station The organic liquid balance in is governed by the following equation: , in, is the mass of hydrogen-rich organic liquid in the hydrogen-rich storage tank at the end of the kth time period, is the mass of hydrogen-rich organic liquid in the hydrogen-rich storage tank at the end of the k+1th time period; It is also constrained by the following formula based on the capacity of the hydrogen-rich storage tank: , in, is the rated capacity of the hydrogen-rich storage tank; is the minimum storage state parameter of the hydrogen-rich storage tank, It is the maximum storage state parameter of the hydrogen-rich storage tank.
9. The method for optimizing a hydrogenation station system based on organic liquid dehydrogenation according to claim 5, characterized in that: The parameter optimization model includes a sub-model of the organic liquid dehydrogenation process of the hydrogenation station for characterizing the effect of the dehydrogenation process on the hydrogen-depleted tank transfer process. The sub-model includes the following constraint formula: The time interval between the end of the kth time period and the end of the k+1th time period of the hydrogen-depleted storage tank at the hydrogen refueling station The organic liquid balance in is governed by the following equation: , in, is the mass of hydrogen-poor organic liquid in the hydrogen-poor storage tank at the end of the kth time period, is the mass of the hydrogen-depleted organic liquid in the hydrogen-depleted storage tank at the end of the k+1th time period; It is also constrained by the following formula based on the capacity of the lean hydrogen storage tank: ; in, is the rated capacity of the lean hydrogen storage tank, Indicates the minimum storage state parameter of the hydrogen-poor storage tank, Indicates the maximum storage state parameter of the hydrogen-depleted storage tank.
10. The method for optimizing a hydrogenation station system based on organic liquid dehydrogenation according to claim 5, wherein: The parameter optimization model includes a hydrogen station compressed hydrogen storage and hydrogen demand sub-model for characterizing the process of hydrogen delivery from the hydrogen storage module to the hydrogenation equipment module. The hydrogen station compressed hydrogen storage and hydrogen demand sub-model includes the following constraint formulas: The time interval between the end of the kth time period and the end of the k+1th time period for the hydrogen buffer tank The hydrogen balance in is constrained by the following formula: , , in, is the amount of hydrogen in the hydrogen buffer tank at the end of the kth time period, is the amount of hydrogen in the hydrogen buffer tank at the end of the k+1th time period, The flow rate of hydrogen generated by the reactor of the dehydrogenation module entering the hydrogen buffer tank, is the flow rate of hydrogen from the hydrogen buffer tank entering the gas pressure compression device of the hydrogen storage module, is the rated capacity of the hydrogen storage cylinder group, Indicates the minimum storage state parameter of the hydrogen buffer tank, Indicates the maximum storage state parameter of the hydrogen buffer tank.
11. The method for optimizing a hydrogenation station system based on organic liquid dehydrogenation according to claim 5, wherein: The parameter optimization model includes a hydrogen station compressed hydrogen storage and hydrogen demand sub-model for characterizing the process of hydrogen delivery from the hydrogen storage module to the hydrogenation equipment module. The hydrogen station compressed hydrogen storage and hydrogen demand sub-model includes the following constraint formulas: When the hydrogen in the hydrogen buffer tank is fed into the hydrogen storage tank through a first compressor, a second compressor, and a third compressor connected in sequence through multi-stage compression, the power of the first compressor is , the power of the second compressor , the power of the third compressor They are respectively subject to the following constraints: , , , in, is the specific heat capacity at constant pressure, is the temperature of the compressor, is the efficiency of the compressor, is the specific heat ratio; is the molar flow rate of hydrogen in the compressor, is the pressure of hydrogen in the hydrogen buffer tank, The output pressure of the first compressor and the output pressure of the second compressor are, The output pressure of the second compressor is the output of the third compressor, The pressure of the hydrogen storage tank output by the third compressor; according to right Unit conversion, It is also subject to the following formula: ; According to the upper and lower flow rate constraints in the compressor, It is also subject to the following formula: , in, is the minimum value of the compressor flow rate, is the maximum value of the compressor flow rate; According to the maximum value of the third compressor flow rate , It is also subject to the following formula: , in, is the number of the third compressor; According to the pressure relationship between the two stages of the compressor, It is also subject to the following formula: ; The hydrogen that has passed through the compressor is stored in the hydrogen storage tank. It is also subject to the following formula: ; Power of the first compressor With the power of the second compressor It is also subject to the following formula: , , in, is the rated power of the first compressor, is the rated power of the second compressor; The first compressor has an investment cost , the second compressor has an investment cost Under constraints, and It is also subject to the following formula: , , in, and are the investment cost coefficients of the compressor respectively.
12. The method for optimizing a hydrogenation station system based on organic liquid dehydrogenation according to claim 5, wherein: The parameter optimization model includes a hydrogen station compressed hydrogen storage and hydrogen demand sub-model for characterizing the process of hydrogen delivery from the hydrogen storage module to the hydrogenation equipment module. The hydrogen station compressed hydrogen storage and hydrogen demand sub-model includes the following constraint formulas: The time interval between the end of the kth time period and the end of the k+1th time period of the hydrogen storage tank of the hydrogen storage module The hydrogen balance in is governed by the following formula: , in, is the amount of hydrogen in the hydrogen storage tank at the end of the kth time period, is the amount of hydrogen in the hydrogen storage tank at the end of the k+1th time period, The flow rate of hydrogen from the hydrogen storage module's gas pressure compression device into the hydrogen storage tank, The flow rate of hydrogen from the hydrogen storage tank into the hydrogenation equipment module; The gas state of hydrogen in the hydrogen storage tank is governed by the following formula: , Where P is the hydrogen pressure, V is the hydrogen volume, is the gas constant, m is the mass of hydrogen, Z is the compressibility factor, and T is the temperature of hydrogen; Calculated according to the following formula: , in, is the density of hydrogen, 、 、 are the fitting parameters, It represents the ratio of one hundred Kelvin to absolute temperature. It represents the ratio of hydrogen density to one megapascal; According to the safety pressure limit of the hydrogen storage tank, the hydrogen gas pressure in the hydrogen storage tank is subject to the following formula: , in, is the minimum safe pressure of the hydrogen storage tank, is the maximum safe pressure of the hydrogen storage tank; It is also subject to the following formula based on the capacity of the hydrogen storage tank: , in, is the rated capacity of the hydrogen storage tank, Indicates the minimum storage state parameter of the hydrogen storage tank, Indicates the maximum storage state parameter of the hydrogen storage tank; The hydrogen volume in the hydrogen storage tank is also constrained by the following formula to ensure that the hydrogen volume at the beginning and end of the operation cycle of the hydrogen storage tank is equal: 。 13. The method for optimizing a hydrogenation station system based on organic liquid dehydrogenation according to claim 5, wherein: The parameter optimization model includes a hydrogen station compressed hydrogen storage and hydrogen demand sub-model for characterizing the process of hydrogen delivery from the hydrogen storage module to the hydrogenation equipment module. The hydrogen station compressed hydrogen storage and hydrogen demand sub-model includes the following constraint formulas: According to the hydrogen source of the hydrogen refueling machine, the flow rate of the hydrogen refueling machine is is subject to the following formula: , in, The flow rate of hydrogen from the hydrogen storage tank into the hydrogenation equipment module; In the case where the hydrogenation equipment module includes multiple hydrogenators, the rated flow rate of the hydrogen storage tank is limited. It is also subject to the following formula: ; in, is the lower limit of the flow rate of the hydrogenator, is the upper limit of the flow rate of the hydrogenator, is the number of hydrogen refueling machines.
14. A computer-readable storage medium, characterized in that The computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the method for optimizing a hydrogenation station system based on organic liquid dehydrogenation according to any one of claims 5 to 13 is implemented.
15. An electronic device, characterized in that: The invention comprises a processor, a memory, and a computer program stored in the memory and executable on the processor, wherein when the computer program is executed by the processor, the steps of the method for optimizing a hydrogenation station system based on dehydrogenation of an organic liquid are implemented as described in any one of claims 5 to 13.
Citation Information
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