Hydrogen refueling station system based on organic liquid dehydrogenation and optimization method thereof
By adopting organic liquid dehydrogenation technology and optimization models in hydrogen refueling stations, the problem of difficulty in taking into account changes in supply and demand is solved, efficient and flexible hydrogen supply is achieved, and resource waste is reduced.
Patent Information
- Application Number
- CN202510607675.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-13
- Publication Date
- 2025-06-13
- Estimated Expiration
- 2045-05-13
AI Technical Summary
It is difficult for existing hydrogen refueling stations to take into account changes in the power generation side output and fluctuations in the user side load, resulting in waste of resources.
The hydrogen refueling station system based on organic liquid dehydrogenation is adopted, including hydrogen-rich storage tank receiving module, dehydrogenation module, hydrogen storage module, hydrogen refueling equipment module and hydrogen-leading storage tank transport module. By coupling physical models and parameter optimization models, the design parameters and operation strategies of the hydrogen refueling station are optimized.
The dynamic adjustment of the hydrogen supply terminal changes in the hydrogen supply terminal and the fluctuations in the load at the user terminal has been achieved, which improves the stability and flexibility of hydrogen supply, reduces resource waste, and improves the coordinated optimization capability of the hydrogen storage-dehydrogen-hydrogen supply process.
Smart Images

Figure CN120140648A_ABST
Abstract
Description
Technical Field
[0001] This application belongs to the field of hydrogen refueling stations, and particularly relates to a hydrogen refueling station system based on organic liquid dehydrogenation, its optimization method, storage medium, and electronic device. Background Art
[0002] The technology of Liquid Organic Hydrogen Carrier (LOHC) utilizes the reversible hydrogenation / dehydrogenation characteristics 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 + ), realizing the chemical storage of hydrogen; during dehydrogenation, hydrogen is released through a catalyst and heating, and the organic matter returns to the hydrogen-poor state (LOHC - ), and is recycled. Due to its characteristics of safe storage and transportation at normal temperature and pressure, it is regarded as an important development direction in the field of hydrogen refueling stations, but there are still technical bottlenecks in terms of dehydrogenation reaction efficiency, storage tank recycling, and collaborative optimization with the hydrogen production end.
[0003] Existing hydrogen refueling station operation schemes mostly focus on the design of single in-station equipment. So far, there is still a lack of an effective solution for hydrogen refueling station technology that can match the output changes of the hydrogen supply end while taking into account the load fluctuations of the user end, and thus achieve a reasonable allocation between supply and demand. Summary of the Invention
[0004] This application aims to provide a hydrogen refueling station system based on organic liquid dehydrogenation, its optimization method, storage medium, and electronic device, at least to solve the problem of resource waste caused by the inability to take into account both the output changes of the power generation side and the load fluctuations of the user end.
[0005] In a first aspect, an embodiment of this application discloses a hydrogen refueling station system based on organic liquid dehydrogenation, including: A hydrogen-rich storage tank receiving module, a dehydrogenation module, a hydrogen reserve module, a hydrogen refueling equipment module, and a hydrogen-poor storage tank transporting-out module; The hydrogen-rich storage tank receiving module is used to receive a hydrogen-rich storage tank storing hydrogen-rich organic liquid from an 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 transporting-out 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 reserve module is used to store the hydrogen obtained through the dehydrogenation process; The hydrogen refueling equipment module is used to input the hydrogen stored in the hydrogen reserve module into hydrogen-consuming equipment.
[0006] In a second aspect, an optimization method for a hydrogen refueling station system based on organic liquid dehydrogenation according to an embodiment of the present application includes: Based on a coupled physical model characterizing the process of transferring hydrogen-rich storage tanks and hydrogen-poor storage 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 influence conditions of market fluctuations on hydrogen refueling demand is established; The parameter optimization model is solved to obtain multiple hydrogen refueling station design parameter values of the hydrogen refueling station system based on organic liquid dehydrogenation; The hydrogen refueling station system based on organic liquid dehydrogenation is configured according to the obtained multiple hydrogen refueling station design parameter values to obtain the optimized hydrogen refueling station system based on organic liquid dehydrogenation.
[0007] In a third aspect, an optimization device for a hydrogen refueling station system based on organic liquid dehydrogenation according to an embodiment of the present application includes: A modeling module for establishing a parameter optimization model constrained by the influence conditions of market fluctuations on hydrogen refueling demand based on a coupled physical model characterizing the process of transferring hydrogen-rich storage tanks and hydrogen-poor storage tanks between an organic liquid hydrogen storage system and a hydrogen refueling station system based on organic liquid dehydrogenation; A hydrogen storage parameter solving module for solving the parameter optimization model to obtain multiple hydrogen refueling station design parameter values of the hydrogen refueling station system based on organic liquid dehydrogenation; A hydrogen storage configuration module for configuring the hydrogen refueling station system based on organic liquid dehydrogenation according to the obtained multiple hydrogen refueling station design parameter values to obtain the optimized hydrogen refueling station system based on organic liquid dehydrogenation.
[0008] In a fourth aspect, an electronic device according to an embodiment of the present application includes a processor and a memory. The memory stores a program or instruction that can run on the processor. When the program or instruction is executed by the processor, the steps of the method described in the first aspect are implemented.
[0009] In a fifth aspect, a readable storage medium according to an embodiment of the present application stores a program or instruction. When the program or instruction is executed by a processor, the steps of the method described in the first aspect are implemented.
[0010] In summary, in the embodiments of the present application, through the hydrogen-rich storage tank receiving module, the stable input of the hydrogen-rich organic liquid storage tank is realized, enabling the hydrogen refueling station system for dehydrogenation of organic liquids to 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, helps to improve the supply-demand imbalance problem caused by the output fluctuations at the hydrogen supply end during the operation of the hydrogen refueling station; subsequently, the hydrogen-rich organic liquid in the hydrogen-rich storage tank undergoes a catalytic dehydrogenation reaction in the dehydrogenation module, releasing high-purity hydrogen, while restoring the organic compound to a hydrogen-poor state. After the hydrogen is released, it enters the hydrogen storage module to buffer the impact of the fluctuations at the hydrogen supply end on the hydrogen refueling station, ensuring that the hydrogen refueling equipment can operate stably under different load conditions. At the same time, through appropriate pressure regulation and storage optimization in the storage module, the hydrogen supply has stronger regulation capabilities to meet the dynamic changes in the user end demand. Finally, the hydrogen refueling equipment module extracts hydrogen from the hydrogen storage module and inputs it to the hydrogen-consuming equipment to realize the terminal application of hydrogen energy. At the same time, the hydrogen-poor storage tank after dehydrogenation returns to the organic liquid hydrogen storage system through the hydrogen-poor storage tank transportation module, completing the closed-loop cycle of the storage tank. This cycle mechanism ensures the efficient utilization of the storage tank and reduces the waste of resources caused by the idle of the storage tank, enabling the hydrogen storage-dehydrogenation-hydrogen supply process to have higher collaborative optimization capabilities. Thus, through modular design, the embodiments of the present application enable the hydrogen refueling station to not only match the output changes at the hydrogen supply end but also dynamically adjust according to the load fluctuations at the user end, enhancing the stability and flexibility of hydrogen supply. Through efficient dehydrogenation treatment, hydrogen storage, and storage tank recycling mechanisms, the problems of low dehydrogenation reaction efficiency, insufficient storage tank recycling rate, and limited collaborative optimization capabilities between 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. Description of the Drawings
[0011] In the drawings: Figure 1 is a hydrogen refueling station system based on dehydrogenation of organic liquids provided by an embodiment of the present application; Figure 2 is a schematic diagram of a hydrogen storage module provided according to an embodiment of the present application; Figure 3 is a schematic diagram of the interaction mode between the hydrogen refueling station system provided by an embodiment of the present application and an organic liquid hydrogen storage system based on renewable energy hydrogen production; Figure 4 is a flowchart of the steps of an optimization method for a hydrogen refueling station system based on dehydrogenation of organic liquids provided by an embodiment of the present application; Figure 5 is a flowchart of the steps of another optimization method for a hydrogen refueling station system based on dehydrogenation of organic liquids provided by an embodiment of the present application; Figure 6 is a complete planning process provided according to an embodiment of the present application; Figure 7 is another complete planning process provided according to an embodiment of the present application; Figure 8 is a block diagram of an optimization device for a hydrogen refueling station system based on dehydrogenation of organic liquids provided by an embodiment of the present application; Figure 9 is a block diagram of an electronic device of an embodiment provided by an embodiment of the present application. Detailed implementation manners
[0012] Next, the technical solutions in the embodiments of the present application will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present application. Apparently, the described embodiments are some, but not all, of the embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative efforts shall fall within the protection scope of the present application.
[0013] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, rather than to describe a specific order or sequence. It should be understood that such data may be interchanged under appropriate circumstances so that the embodiments of the present application can be implemented in an order different from those illustrated or described herein, and the objects distinguished by "first", "second", etc. are generally of the same category, and the number of objects is not limited. For example, the first object may be one or more. In addition, "and / or" in the specification and claims means at least one of the connected objects, and the character " / " generally indicates an "or" relationship between the associated objects before and after.
[0014] As Figure 1 shown, a hydrogen refueling station system 10 based on dehydrogenation of organic liquids provided by this embodiment includes: a rich hydrogen storage tank receiving module 101, a dehydrogenation module 102, a hydrogen storage module 103, a hydrogen refueling equipment module 104, and a lean hydrogen storage tank transporting module 105; The rich hydrogen storage tank receiving module 101 is used to receive a rich hydrogen storage tank Y storing rich hydrogen organic liquid from the organic liquid hydrogen storage system 11; The dehydrogenation module 102 is used to dehydrogenate the rich hydrogen organic liquid in the rich hydrogen storage tank Y to obtain hydrogen and lean hydrogen organic liquid; The lean hydrogen storage tank transporting module 105 is used to store the lean hydrogen organic liquid generated by the dehydrogenation module and transport a lean hydrogen storage tank X storing lean hydrogen organic liquid to the organic liquid hydrogen storage system 11; The hydrogen storage module 103 is used to store the hydrogen obtained through dehydrogenation treatment; The hydrogen refueling equipment module 104 is used to input the hydrogen stored in the hydrogen storage module 103 into the hydrogen-consuming device A.
[0015] In some embodiments of the present application, a hydrogen refueling station system 10 based on dehydrogenation of organic liquids includes a hydrogen-rich storage tank receiving module 101, a dehydrogenation module 102, a hydrogen storage module 103, a hydrogen refueling equipment module 104, and a hydrogen-depleted storage tank transporting-out module 105. The dehydrogenation module 102 is connected to the hydrogen-rich storage tank receiving module 101, and is used to receive the hydrogen-rich storage tank Y provided by the organic liquid hydrogen storage system 11, and convert it to a hydrogen-depleted state by dehydrogenating the hydrogen-rich organic liquid in the hydrogen-rich storage tank Y, while releasing hydrogen; the hydrogen-depleted storage tank transporting-out 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 by dehydrogenation treatment; the hydrogen refueling equipment module 104 is connected to the hydrogen storage module 103, and is used to input the stored hydrogen into the hydrogen-consuming equipment A. "Liquid Organic Hydrogen Carrier (LOHC)" is a method for storing and transporting hydrogen energy by utilizing the reversible hydrogenation / dehydrogenation characteristics of organic compounds. Specifically, during the dehydrogenation process of the dehydrogenation module 102, the hydrogen-rich organic liquid releases hydrogen and is converted to a hydrogen-depleted state for recycling, and the process is driven by a catalyst and heat. The above technology can reduce the safety risks and high costs of high-pressure gaseous hydrogen storage or cryogenic liquid hydrogen storage existing in the traditional hydrogen storage and transportation methods. The hydrogen-rich storage tank receiving module 101 and the hydrogen-depleted storage tank transporting-out module 105 establish a cyclic transportation mechanism for the storage tanks at the hydrogen production end and the hydrogen refueling station end, improving the utilization rate of the storage tanks and reducing resource waste. The dehydrogenation module 102 releases hydrogen through efficient dehydrogenation treatment, optimizes the dehydrogenation reaction efficiency, and realizes the full-process docking of hydrogen storage and utilization after dehydrogenation. The hydrogen storage module 103 stores the hydrogen after dehydrogenation treatment, provides a stable hydrogen supply for the hydrogen-consuming equipment A, and meets the dynamic demand. The hydrogen refueling equipment module 104 completes the connection of hydrogen from storage to use, facilitating the actual application of hydrogen, such as providing hydrogen for hydrogen fuel cell vehicles.
[0016] In summary, in the embodiment of the present application, through the hydrogen-rich storage tank receiving module, the stable input of the hydrogen-rich organic liquid storage tank is realized, enabling the hydrogen refueling station system for dehydrogenation of organic liquids to 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 process and helps to improve the supply-demand imbalance problem caused by the output fluctuations at the hydrogen supply end during the operation of the hydrogen refueling station. Subsequently, the hydrogen-rich organic liquid in the hydrogen-rich storage tank undergoes a catalytic dehydrogenation reaction in the dehydrogenation module, releasing high-purity hydrogen while restoring the organic compound to a hydrogen-poor state. After the hydrogen is released, it enters the hydrogen storage module to buffer the impact of fluctuations at the hydrogen supply end on the hydrogen refueling station, ensuring that the hydrogen refueling equipment can operate stably under different load conditions. At the same time, through appropriate pressure regulation and storage optimization in the storage module, the hydrogen supply has stronger adjustment capabilities to meet the dynamic changes in the user-end demand. Finally, the hydrogen refueling equipment module extracts hydrogen from the hydrogen storage module and inputs it into the hydrogen-consuming equipment to achieve the terminal application of hydrogen energy. At the same time, the hydrogen-poor storage tank after dehydrogenation returns to the organic liquid hydrogen storage system through the hydrogen-poor storage tank transportation module, completing the closed-loop cycle of the storage tank. This cycle mechanism ensures the efficient utilization of the storage tank and reduces the waste of resources caused by the idle storage tank, enabling the hydrogen storage-dehydrogenation-hydrogen supply process to have higher collaborative optimization capabilities. Thus, through modular design, the embodiment of the present application enables the hydrogen refueling station to not only match the output changes at the hydrogen supply end but also dynamically adjust according to the load fluctuations at the user end, enhancing the stability and flexibility of hydrogen supply. Through efficient dehydrogenation treatment, hydrogen storage, and storage tank recycling mechanisms, the problems of low dehydrogenation reaction efficiency, insufficient storage tank recycling rate, and limited collaborative optimization capabilities between 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.
[0017] Optionally, as Figure 2 shown, the hydrogen storage module 103 includes a hydrogen buffer tank 1032 (Hydrogen buffer tank, HBT) and a hydrogen storage bottle group 1033 connected by a gas pressure compression device 1031; The hydrogen buffer tank 1032 is used to store the hydrogen obtained through dehydrogenation treatment within a first gas pressure range; The gas pressure compression device 1031 is used to pressurize the hydrogen stored in the hydrogen buffer tank 1032 to a second gas pressure range and input the hydrogen pressurized to the second gas pressure range into the hydrogen storage bottle group 1033; the maximum value of the first gas pressure range is less than the minimum value of the second gas pressure range.
[0018] In some embodiments of the present application, the hydrogen storage module 103 includes a pneumatic compression device 1031, a hydrogen buffer tank 1032, and a hydrogen storage bottle group 1033. The pneumatic compression device 1031 is connected to the hydrogen buffer tank 1032 and the hydrogen storage bottle group 1033, where the hydrogen buffer tank 1032 is used to store the hydrogen obtained from the dehydrogenation treatment within a first pressure range; the pneumatic compression device 1031 is used to pressurize the hydrogen in the hydrogen buffer tank 1032 to a second pressure range and input the pressurized hydrogen into the hydrogen storage bottle group 1033 for storage. The first pressure range is used to ensure high efficiency and safety during the dehydrogenation process of hydrogen, while the second pressure range meets the high-pressure storage requirements of the hydrogen storage bottle group to achieve efficient hydrogen storage. The setting of the hydrogen buffer tank 1032 reduces the energy consumption during the initial storage process of hydrogen and provides a stable low-pressure hydrogen supply for subsequent pressurization treatment. The pneumatic compression device 1031 optimizes the process of increasing the hydrogen pressure through a multi-stage compression process, reduces the energy loss in the compression link, and meets the pressure requirements of the hydrogen storage bottle group. The hydrogen storage bottle group 1033 can store high-pressure hydrogen, ensuring a stable supply of hydrogen and meeting the dynamic requirements of the hydrogen refueling station.
[0019] Optionally, the pneumatic compression device includes a plurality of gas compressors connected in sequence.
[0020] In some embodiments of the present application, the pneumatic compression device includes a plurality of gas compressors connected in sequence. For example, in some embodiments, the gas compressors can be arranged in a cascaded form of a first compressor, a second compressor, and a third compressor, such that the hydrogen input from the hydrogen buffer tank can sequentially undergo a multi-stage compression process. Among them, the first compressor is used to initially compress the hydrogen to an intermediate pressure, the second compressor is used to further increase the hydrogen pressure 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 bottle group. The multi-stage compression system composed of the first compressor, the second compressor, and the third compressor can significantly improve the efficiency of the hydrogen pressure increase process while reducing the energy loss of each stage of compression. For the compression process of hydrogen, the compression efficiency is closely related to the specific heat capacity at constant pressure and the compression ratio. Through the staged compression design, the mechanical load problem caused by too high single-stage working pressure of the compressor can be reduced. The multi-stage compression system optimizes the conversion efficiency of hydrogen from low pressure to high pressure, realizes a balanced pressure increase process, and reduces the energy consumption of equipment operation. The cascaded design of the pneumatic compression device improves the reliability of the compression process and meets the pressure requirements of the hydrogen storage bottle group for high-pressure hydrogen storage. Through the configuration of multiple compressors, the dynamic demand for hydrogen in the hydrogen refueling station can be met, providing a stable hydrogen supply for subsequent hydrogen storage and filling links.
[0021] Optionally, the organic liquid hydrogen storage system is an organic liquid hydrogen storage system 11 based on renewable energy hydrogen production.
[0022] The organic liquid hydrogen storage system based on renewable energy hydrogen production at least includes: A renewable energy hydrogen production module 113, a hydrogenation module 114, a hydrogen-rich storage tank shipping-out module 115, and a hydrogen-poor storage tank receiving module 111; The renewable energy hydrogen production module 113 is used for electrolyzing water to produce hydrogen by using the electricity generated by at least one of a fan 1121 and a photovoltaic device 1122. The hydrogenation module 113 is used for hydrogenating the hydrogen-poor organic liquid in the hydrogen-poor storage tank receiving module 111 to obtain a hydrogen-rich organic liquid. The hydrogen-rich storage tank shipping-out module 115 is used for storing the hydrogen-rich organic liquid generated by the hydrogenation module and transporting the hydrogen-rich storage tank Y storing the hydrogen-rich organic liquid to the hydrogen-rich storage tank receiving module 101. The hydrogen-poor storage tank receiving module 111 is used for receiving the hydrogen-poor storage tank from the hydrogen-poor storage tank shipping-out module 105.
[0023] Through the above structure, by utilizing the receiving process of the hydrogen-poor storage tank and the efficient shipping-out mechanism of the hydrogen-rich storage tank, the recycling of the storage tank between the hydrogen production end and the hydrogen refueling station is ensured, the utilization efficiency of the storage tank is improved, resource waste is reduced. At the same time, by providing stable electric energy to the hydrogen production module through the energy supply module, the sustainability and efficiency of electrolyzing water to produce hydrogen are realized, and the hydrogenation reaction process of the storage tank hydrogenation module is optimized, making the chemical state storage of hydrogen more efficient and safe; finally, the hydrogen-rich storage tank is transported to the hydrogen refueling station system based on organic liquid dehydrogenation, and a closed-loop recycling mechanism between the hydrogen production end and the hydrogen refueling station end of the storage tank is established, effectively meeting the dynamic demand. Fundamentally, the utilization rate of the storage tank is improved, resource waste is reduced, an organic liquid hydrogen storage system based on renewable energy hydrogen production is constructed, the problems of low resource utilization rate and insufficient system coordination caused by the separation of the hydrogen production and hydrogen storage links in the traditional hydrogen production station operation plan are solved, the hydrogen production efficiency and the design of the hydrogen storage process are optimized, and the problems of low utilization rate and large waste of the storage tank in the hydrogen production and hydrogen storage processes are solved.
[0024] As Figure 3 shown, based on the hydrogen refueling station system based on organic liquid dehydrogenation disclosed in the present application, the embodiment of the present application also discloses an optimization method for a hydrogen refueling station system based on organic liquid dehydrogenation.
[0025] The method may include the following steps: Step 201, according to the coupling physical model for characterizing the process of transferring the hydrogen-rich storage tank and the hydrogen-poor storage tank between the organic liquid hydrogen storage system and the hydrogen refueling station system based on organic liquid dehydrogenation, establish a parameter optimization model constrained by the influence conditions of market fluctuations on hydrogen refueling demand.
[0026] In some embodiments of the present application, in order to construct a parameter optimization model constrained by the influence conditions of market fluctuation changes on hydrogenation demand during the storage tank transfer process between an organic liquid hydrogen storage system and a hydrogen refueling 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, improve the operation efficiency and resource utilization rate, a parameter optimization model will be established based on the coupled physical model describing the transfer process between the hydrogen-rich storage tank and the hydrogen-poor storage tank. This optimization model combines the volatility of market hydrogen demand and uses this as a constraint condition to optimize the storage tank scheduling strategy, hydrogen supply rate, and equipment load adjustment plan. The "coupled physical model" is used to characterize the material flow law during the storage tank transfer process between the hydrogen storage system and the hydrogen refueling station system, and can quantify the supply capacity and dynamic balance characteristics of the storage tank. The "parameter optimization model" combines the changes in market demand, and by optimizing the objective function and constraint conditions, solves the key design parameters of the hydrogen storage system, such as storage tank capacity allocation, transportation frequency, and hydrogen release rate, etc., to ensure that the hydrogen refueling 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, optimize the storage tank transportation strategy to reduce the number of idle storage tanks, and improve resource utilization rate; at the same time, this optimization scheme can reduce energy waste caused by drastic changes in market demand, and enhance the economy and flexibility of the hydrogen refueling station system.
[0027] In a specific example, for the optimal design of a wind-solar power generation hydrogen production system and an urban hydrogen refueling station, where the market hydrogen demand 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 the hydrogen-rich storage tank and the hydrogen-poor storage tank, a parameter optimization model constrained by market demand changes is established. The execution process of the example includes: optimizing the storage 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 the market demand. The optimized hydrogen storage system in this way can adjust the storage tank scheduling in real time, ensure the stability of hydrogen supply, reduce resource waste during storage, and improve the economic adaptability of the system under market fluctuation conditions.
[0028] Step 202, solve the parameter optimization model to obtain multiple hydrogen refueling station design parameter values for the hydrogen refueling station system based on organic liquid dehydrogenation.
[0029] In some embodiments of the present application, in order to determine multiple hydrogen refueling station design parameter values of a hydrogen refueling station system based on organic liquid dehydrogenation by solving a parameter optimization model, thereby optimizing the equipment configuration and operation strategy of the hydrogen refueling station, improving the hydrogen supply efficiency and resource utilization rate, an optimization algorithm is used to solve the parameter optimization model to obtain multiple hydrogen refueling station design parameter values. These parameter values can accurately describe the hydrogen storage, dehydrogenation rate, storage tank capacity, and operation mode of the hydrogen refueling equipment, so as to ensure that the hydrogen refueling station system can maintain stable and efficient operation under different demand conditions. Thus, the hydrogen refueling station design parameter values obtained by solving the parameter optimization model can optimize the hydrogen storage scale, dehydrogenation rate, and operation strategy of the hydrogen refueling equipment, improve the stability of hydrogen supply, and at the same time reduce the resource waste caused by unreasonable scheduling during the system operation, enabling the hydrogen refueling station to have the ability to dynamically adapt to changes in market demand.
[0030] In a specific example, in the optimal design of a hydrogen refueling station system in a city, it is necessary to adapt to the hydrogen supply fluctuations on the side of wind and solar power generation and the dynamic changes in market demand. Data on wind speed, solar radiation, and the market hydrogen demand curve have been collected, and combined with the operating conditions of the hydrogen refueling station system based on organic liquid dehydrogenation, a parameter optimization model is constructed. Then, the operating load of the dehydrogenation module, the storage tank capacity, and the hydrogen supply rate of the hydrogen refueling equipment are used as optimization variables, and a solution algorithm is used to calculate the optimal design parameter values to ensure that the hydrogen refueling station can operate stably under different demand situations. Thus, the optimized hydrogen refueling station system can dynamically adjust the hydrogen supply strategy, ensure the efficient operation of the dehydrogenation module and the hydrogen refueling equipment, while reducing resource waste in the storage link, and improving the economy and reliability of hydrogen supply.
[0031] Step 203: Configure a hydrogen refueling station system based on organic liquid dehydrogenation according to the obtained multiple hydrogen refueling station design parameter values to obtain an optimized hydrogen refueling station system based on organic liquid dehydrogenation.
[0032] In some embodiments of the present application, in order to configure and optimize a hydrogen refueling station system based on organic liquid dehydrogenation according to multiple obtained hydrogen refueling station design parameter values, so as to improve its operating efficiency, hydrogen energy utilization rate, and enhance the stability and adaptability of the system under the condition of hydrogen supply fluctuations, the operating load of the dehydrogenation module, the storage strategy of the hydrogen storage module, the hydrogen supply rate of the hydrogen refueling equipment, and the transportation plan of the hydrogen-depleted storage tank will be adjusted according to the multiple obtained hydrogen refueling station design parameter values, so as to construct an optimized hydrogen refueling station system that can adapt to the dynamic changes in the market demand for hydrogen. The "hydrogen refueling station design parameter values" are a set of key configuration variables obtained by solving a parameter optimization model, including the dehydrogenation reaction rate, hydrogen storage capacity, storage tank transportation frequency, and the working mode of the hydrogen refueling equipment. The optimized adjustment of these parameters can not only ensure the stability of hydrogen energy supply, but also improve the energy efficiency of the dehydrogenation process and reduce resource waste in the hydrogen storage link. The hydrogen refueling 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 consumption by optimizing the storage tank transportation and the working strategy of the dehydrogenation module, and finally ensure the economy and reliability of hydrogen supply.
[0033] In a specific example, in the optimized design of a hydrogen refueling station system in a city, the system needs to adapt to the hydrogen supply fluctuations on the side of wind and solar power generation and the changes in hydrogen demand at the user end. According to the hydrogen refueling station design parameters such as the obtained dehydrogenation rate, hydrogen storage capacity, and transportation cycle of the hydrogen-depleted storage tank, the operation mode of the dehydrogenation module is adjusted, and the storage management strategy of the hydrogen storage module is optimized. The optimized parameters can be input into the hydrogen refueling station system model to configure and adjust the dehydrogenation reaction, hydrogen supply, and storage tank scheduling of the system to match the market demand and the volatility of the hydrogen supply side. The hydrogen refueling station system optimized in this way can operate efficiently under the condition of market hydrogen demand fluctuations, while ensuring the reasonable management of the hydrogen storage module and the timely transportation of the hydrogen-depleted storage tank, achieving the optimal allocation of system resources, improving the operating efficiency of the hydrogen supply chain, and reducing the operating cost.
[0034] As Figure 5 shown, it is another optimization method for a hydrogen refueling station system based on organic liquid dehydrogenation disclosed in the embodiments of the present application, which specifically includes the following steps: Step 301, establish a coupled physical model according to the transfer process of the hydrogen-rich storage tank and the hydrogen-depleted storage tank.
[0035] 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-lean storage tank in the organic liquid hydrogen storage system and the hydrogen refueling station system based on organic liquid dehydrogenation, so as to quantify the material flow relationship between the two systems and provide 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-lean storage tank. This model is used to characterize the dynamic interaction relationship between the storage tank in the hydrogen production system and the hydrogen refueling station, and a mathematical expression is constructed 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 dynamic balance of material flow is achieved in the hydrogen storage and release links of the storage tank, the utilization rate of the storage tank is improved, and the collaborative operation mechanism of hydrogen storage and dehydrogenation processes is optimized, thereby enhancing the economy and operation stability of the system.
[0036] In a specific example, in the design process of a linkage model for a wind-solar power hydrogen production system and an urban hydrogen refueling station, first, a mathematical description of the flow between the hydrogen-rich storage tank and the hydrogen-lean storage tank in the two systems can be established according to the changes in wind speed and solar radiation, and the transportation time window and material flow constraints of the storage tank can be constructed in combination with the dynamic demand of the hydrogen refueling station. The optimized storage tank transmission strategy obtained in this way enables the hydrogen storage system to dynamically respond to the demand changes of the hydrogen refueling station, while reducing resource waste during the storage process, and improving the adaptability and stability of the hydrogen supply chain.
[0037] Step 302: Use the demand quantification relationship formed by the impact of market fluctuation changes on hydrogen refueling demand as a constraint condition for the coupled physical model, and establish a parameter optimization model under a preset optimization goal.
[0038] In some embodiments of the present application, in the optimization process of the hydrogen refueling station system, the demand quantification relationship formed by the impact of market fluctuation changes on hydrogen refueling demand is used as a constraint condition to ensure that the system can dynamically adapt to market demand fluctuations and optimize the hydrogen supply strategy at the same time. A parameter optimization model will be established based on the coupled physical model of the hydrogen-rich storage tank and the hydrogen-lean storage tank, and the market demand quantification relationship will be used as a constraint condition, so that the optimization solution process can reasonably match the output changes at the hydrogen supply end and the demand fluctuations at the user end. The "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, enables the hydrogen refueling station system to consider the impact brought by market fluctuations during the optimization solution. The "parameter optimization model" is optimized and modeled based on a preset optimization goal, such as minimizing the operating cost or maximizing the hydrogen supply stability, and calculates the optimal solutions of the storage tank configuration, dehydrogenation rate, hydrogen storage capacity, and hydrogen refueling equipment scheduling strategy under the constraint conditions. In this way, by introducing market fluctuation constraints, the hydrogen refueling station system can dynamically adjust the storage tank transportation strategy and dehydrogenation reaction rate in the face of hydrogen demand changes, reduce resource waste caused by market demand fluctuations, and improve the operation stability and economy of the hydrogen refueling station.
[0039] In a specific example, in the process of optimizing the design of a wind and photovoltaic power generation-based hydrogen production system and an urban hydrogen refueling station, the system needs to adapt to the fluctuations in industrial hydrogen demand and the dynamic changes in transportation energy consumption. By collecting data on the changes in market hydrogen demand and combining the coupled physical model of hydrogen-rich and hydrogen-poor storage tanks, a parameter optimization model based on market demand changes is constructed. Then, based on the market hydrogen demand prediction data, the storage tank transportation cycle, the operation load of the dehydrogenation module, 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 the waste of resources in the storage link, and enhance the economic adaptability of the system under market fluctuations.
[0040] Step 303: Solve the parameter optimization model to obtain multiple hydrogen refueling station design parameter values for the hydrogen refueling station system based on organic liquid dehydrogenation.
[0041] The method shown in this step has been described in step 202 and will not be elaborated here.
[0042] Step 304: Configure the hydrogen refueling station system based on organic liquid dehydrogenation according to the obtained multiple hydrogen refueling station design parameter values to obtain an optimized hydrogen refueling station system based on organic liquid dehydrogenation.
[0043] The method shown in this step has been described in step 203 and will not be elaborated here.
[0044] Under the coupled design of the above-mentioned hydrogen refueling 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 as follows: Optionally, when the optimization objective of the parameter optimization model is to minimize the total cost In this case, It is characterized by the following formula: , where is the total construction and maintenance cost 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, is the total labor cost of the organic liquid hydrogen storage system and the organic liquid dehydrogenation system, is the total energy consumption cost of the organic liquid hydrogen storage system and the organic liquid dehydrogenation system.
[0045] Optionally, It is characterized by the following formula: , where is the total equipment investment cost of the organic liquid hydrogen storage system and the organic liquid dehydrogenation system; is the total equipment energy consumption cost of the organic liquid hydrogen storage system and the organic liquid dehydrogenation system; is the total equipment operation and maintenance cost of the organic liquid hydrogen storage system and the organic liquid dehydrogenation system.
[0046] Optionally, is characterized by the following formula: , wherein, is the investment cost of the fan, is the investment cost of the photovoltaic equipment, is the investment cost of the energy storage battery, is the investment cost of the hydrogen production module, is the investment cost of the reactor of the hydrogenation module, is the investment cost of the reactor of the dehydrogenation module, is the investment cost of the hydrogen-rich storage tank, is the investment cost of the hydrogen-lean storage tank, is the investment cost of the pneumatic compression device of the hydrogen storage module, is the investment cost of the hydrogen storage tank of the hydrogen storage module, is the investment cost of the hydrogenation equipment module; wherein, the investment cost of each equipment is characterized by the following formula: , where , i represents each equipment: i = WT, PV, BESS, ELE, HR, DR, HST, DST, COM, HT, HD, is the unit cost of equipment i; is the rated capacity of equipment i, is the annualization factor of equipment i, l i is the expected life of equipment i, r is the interest rate.
[0047] Optionally, when the hydrogen storage module of the organic liquid dehydrogenation system includes multiple hydrogen storage tanks, and the hydrogenation equipment module of the organic liquid dehydrogenation system includes multiple hydrogenation machines, and the pneumatic compression device of the organic liquid dehydrogenation system includes a first compressor for connecting with the hydrogen storage module, multiple third compressors for respectively connecting with the hydrogen storage module, and a second compressor for connecting the first compressor and the third compressor, is characterized by the following formula: , wherein, is the investment cost of the first compressor, is the investment cost of the second compressor, is the investment cost of each third compressor, is the number of third compressors, is the annualization factor of the pneumatic compression device; It is calculated by the following formula: , wherein, is the investment cost of each hydrogen storage tank, is the number of hydrogen storage tanks, is the annualization factor of the hydrogen storage tank; It is calculated by the following formula: , wherein, is the investment cost of each hydrogen refueling machine, is the number of hydrogen refueling machines, is the annualization factor of the hydrogen refueling machine.
[0048] Optionally, when the pneumatic compression device of the organic liquid dehydrogenation system includes a first compressor for connecting with the hydrogen storage module, a plurality of third compressors for respectively connecting with the hydrogen storage module, and a second compressor for connecting the first compressor and the third compressor, It is calculated by the following formula: , wherein, 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.
[0049] Optionally, It is characterized by the following formula: , wherein, is the maintenance cost factor.
[0050] Optionally, the parameter optimization model includes an organic liquid dehydrogenation sub-model for characterizing the dehydrogenation process of the dehydrogenation treatment. The organic liquid dehydrogenation sub-model includes the following constraint formula: The volume of the reactor (Hydrogenation reactor) of the dehydrogenation module is constrained by the following formula: , Among them, a 2 is a fitting parameter between the molar flow rate at the hydrogen outlet during the dehydrogenation process and the reactor volume of the dehydrogenation module; is the flow rate when the hydrogen-rich organic liquid in the hydrogen-rich storage tank enters 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; The molar flow rate of the hydrogen-rich organic liquid in the dehydrogenation reaction is constrained by the following formula: ; The flow rate of hydrogen generated in the dehydrogenation reaction is constrained by the following formula: , wherein, is the relative molecular mass of hydrogen, is the ratio of the molar amounts between hydrogen and the hydrogen-rich organic liquid in the reaction equation of the dehydrogenation reaction; The flow rate of the hydrogen-depleted organic liquid generated in the dehydrogenation reaction is constrained by the following formula: , wherein, is the relative molecular mass of the hydrogen-depleted organic liquid, is the ratio of the molar amounts between the hydrogen-depleted organic liquid and the hydrogen-rich organic liquid in the reaction equation of the dehydrogenation reaction.
[0051] Optionally, formed by window operation, the reactor volume of the dehydrogenation module is constrained by the following formula: ; wherein, is the lower limit of the operation window of the reactor of the dehydrogenation module, is the upper limit of the operation window of the reactor of the dehydrogenation module; is the rated capacity of the reactor of the dehydrogenation module.
[0052] Optionally, the parameter optimization model includes a sub-model of the organic liquid storage tank in the hydrogen evolution process of the hydrogenation station organic liquid, which is used to characterize the influence of the dehydrogenation process on the transfer process of the hydrogen-rich storage tank. The sub-model of the organic liquid storage tank in the hydrogen evolution process of the hydrogenation station organic liquid includes the following constraint formulas: The time interval from the end of the k-th time period to the end of the (k + 1)-th time period of the hydrogen-rich storage tank on the hydrogenation station side The organic liquid balance in is constrained by the following formula: , wherein, is the mass of the hydrogen-rich organic liquid in the hydrogen-rich storage tank at the end of the k-th time period, is the mass of the hydrogen-rich organic liquid in the hydrogen-rich storage tank at the end of the (k + 1)-th time period; It is also subject to the following formula according to the capacity of the hydrogen-rich storage tank: , where, is the rated capacity of the hydrogen-rich storage tank; is the minimum storage state parameter of the hydrogen-rich storage tank, is the maximum storage state parameter of the hydrogen-rich storage tank.
[0053] Among them, the storage state parameter is used to characterize the ratio of the organic liquid storage amount in the storage tank to the rated storage amount of the storage tank.
[0054] Optionally, the parameter optimization model includes a sub-model of the organic liquid storage tank for the hydrogen release process at the hydrogen refueling station, which is used to characterize the influence of the dehydrogenation process on the transfer process of the hydrogen-depleted storage tank. The sub-model of the organic liquid storage tank for the hydrogen release process at the hydrogen refueling station includes the following constraint formula: The time interval from the end of the k-th time period to the end of the (k + 1)-th time period for the hydrogen-depleted storage tank on the hydrogen refueling station side The organic liquid balance in it is constrained by the following formula: , where, is the mass of the hydrogen-depleted organic liquid in the hydrogen-depleted storage tank at the end of the k-th time period, is the mass of the hydrogen-depleted organic liquid in the hydrogen-depleted storage tank at the end of the (k + 1)-th time period; It is also subject to the following formula according to the capacity of the hydrogen-depleted storage tank: ; where, is the rated capacity of the hydrogen-depleted storage tank, represents the minimum storage state parameter of the hydrogen-depleted storage tank, represents the maximum storage state parameter of the hydrogen-depleted storage tank.
[0055] Optionally, the parameter optimization model includes a sub-model of compressed hydrogen storage and hydrogen demand at the hydrogen refueling station, which is used to characterize the process of the hydrogen storage module delivering hydrogen to the hydrogen refueling equipment module. The sub-model of compressed hydrogen storage and hydrogen demand at the hydrogen refueling station includes the following constraint formula: The time interval from the end of the k-th time period to the end of the (k + 1)-th time period for the hydrogen buffer tank The hydrogen balance in it is constrained by the following formula: , , Among them, is the hydrogen amount in the hydrogen buffer tank at the end of the k-th time period, is the hydrogen amount in the hydrogen buffer tank at the end of the (k + 1)-th time period, is the flow rate of hydrogen generated by the reactor of the dehydrogenation module entering the hydrogen buffer tank, is the flow rate of hydrogen in the hydrogen buffer tank entering the gas pressure compression device of the hydrogen storage module, is the rated capacity of the hydrogen storage bottle group, represents the minimum storage state parameter of the hydrogen buffer tank, represents the maximum storage state parameter of the hydrogen buffer tank.
[0056] Optionally, the parameter optimization model includes a hydrogen refueling station compressed hydrogen storage and hydrogen demand sub-model for characterizing the process of the hydrogen storage module delivering hydrogen to the hydrogen refueling equipment module. The hydrogen refueling station compressed hydrogen storage and hydrogen demand sub-model includes the following constraint formulas: When the hydrogen in the hydrogen buffer tank passes through the sequentially connected first compressor, second compressor, and third compressor and is input into the hydrogen storage tank through multi-stage compression, the power of the first compressor , the power of the second compressor , and the power of the third compressor are respectively constrained by the following formulas: , , , Among them, 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, is the output pressure of the first compressor to the second compressor, is the output pressure of the second compressor to the third compressor, is the pressure of the third compressor output to the hydrogen storage tank.
[0057] Optionally, according to for unit conversion, is also constrained by the following formula: ; Optionally, according to the flow rate upper and lower limit constraints in the compressor, is also constrained by the following formula: , wherein, is the minimum value of the compressor flow rate, is the maximum value of the compressor flow rate.
[0058] Optionally, according to the maximum value of the third compressor flow rate , is also subject to the following formula: , wherein, is the number of the third compressors.
[0059] Optionally, according to the pressure relationship between two stages of the compressor, is also subject to the following formula: ; Optionally, according to the hydrogen stored in the hydrogen storage tank after passing through the compressor, is also subject to the following formula: .
[0060] Optionally, the power of the first compressor and the power of the second compressor are also subject to the following formula: , , wherein, is the rated power of the first compressor, is the rated power of the second compressor.
[0061] Optionally, when the first compressor has an investment cost , and the second compressor has an investment cost constrained, and are also subject to the following formula: , , wherein, and are respectively the investment cost coefficients of the compressors.
[0062] Optionally, the parameter optimization model includes a hydrogen refueling station compression hydrogen storage and hydrogen demand sub-model for characterizing the process of the hydrogen storage module delivering hydrogen to the hydrogen refueling equipment module. The hydrogen refueling station compression hydrogen storage and hydrogen demand sub-model includes the following constraint formulas: The time interval from the end of the k-th time period to the end of the (k + 1)-th time period of the hydrogen storage tank in the hydrogen storage module The hydrogen balance therein is constrained by the following formula: , wherein, is the hydrogen amount in the hydrogen storage tank at the end of the k-th time period, is the hydrogen amount in the hydrogen storage tank at the end of the (k + 1)-th time period, is the flow rate of hydrogen from the gas pressure compression device of the hydrogen reserve module into the hydrogen storage tank, is the flow rate of hydrogen in the hydrogen storage tank into the hydrogen refueling equipment module.
[0063] Optionally, the gaseous state of hydrogen in the hydrogen storage tank is constrained by the following formula: , where P is the hydrogen pressure, V is the hydrogen volume, is the gas constant, m is the hydrogen mass, Z is the compressibility factor, and T is the hydrogen temperature; is calculated according to the following formula: , wherein, is the hydrogen density, , , are fitting parameters respectively. Here, represents the ratio of one hundred Kelvin to the absolute temperature, represents the ratio of the hydrogen density to one megapascal, , , and , are all dimensionless quantities.
[0064] Optionally, according to the safety pressure limit of the hydrogen storage tank, the hydrogen gas pressure in the hydrogen storage tank is constrained by the following formula: , wherein, is the minimum safety pressure of the hydrogen storage tank, is the maximum safety pressure of the hydrogen storage tank; It is also constrained by the following formula according to the capacity of the hydrogen storage tank: , wherein, is the rated capacity of the hydrogen storage tank, represents the minimum storage state parameter of the hydrogen storage tank, represents the maximum storage state parameter of the hydrogen storage tank; The hydrogen quantity in the hydrogen storage tank is also constrained by the following formula to characterize that the initial and final hydrogen quantities in the hydrogen storage tank are equal during the operation period (usually 1 day): .
[0065] Optionally, the parameter optimization model includes a hydrogen refueling station compressed hydrogen storage and hydrogen demand sub-model for characterizing the process of the hydrogen storage module delivering hydrogen to the hydrogen refueling equipment module. The hydrogen refueling station compressed hydrogen storage and hydrogen demand sub-model includes the following constraint formulas: According to the fact that the hydrogen in the hydrogen refueling machine comes from the hydrogen storage tank, the flow rate of the hydrogen refueling machine is constrained by the following formula: , where is the flow rate of the hydrogen in the hydrogen storage tank entering the hydrogen refueling equipment module.
[0066] Optionally, in the case where the hydrogen refueling equipment module contains multiple hydrogen refueling machines, according to the influence of the rated flow rate limit of the hydrogen storage tank, it is also constrained by the following formula: ; where is the lower limit of the flow rate of the hydrogen refueling machine, is the upper limit of the flow rate of the hydrogen refueling machine, is the number of hydrogen refueling machines.
[0067] Optionally, in the case where 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 and solar power generation sub-model for characterizing the relationship between the output power of the energy supply module and the wind turbine and the photovoltaic device. The wind and solar power generation sub-model includes the following constraint formulas: , where represents the total power generation of the energy supply module in the k-th time period, represents the power generation of the wind turbine in the k-th time period; represents the power generation of the photovoltaic device in the k-th time period; It is also constrained by the average power generation formula of the wind turbine: , where is the capacity factor of wind power generation, indicating the electric power that can be generated by a wind turbine with a rated power of 1 kW, which is determined by the local meteorological conditions, It is also constrained by the average power generation formula of the photovoltaic device; , wherein is the capacity factor of photovoltaic power generation; is the rated power of the photovoltaic panel.
[0068] Optionally, when the energy supply module of the organic liquid hydrogen storage system based on renewable energy hydrogen production further includes a energy storage battery, at this time, the renewable energy power generation system can supply the hydrogen production module and the energy storage battery, or discard 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: ; wherein represents the output power of the energy supply module to the hydrogen production module in the k-th time period, represents the output power of the energy supply module to the energy storage battery in the k-th time period, represents the discarded power of the energy supply module in the k-th time period.
[0069] Optionally, when the energy supply module of the organic liquid hydrogen storage system based on renewable energy hydrogen production includes a power generation device and an energy storage battery, 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 based on renewable energy hydrogen production. The electrolyzer sub-model includes the following constraint formulas: , wherein is the input power of the hydrogen production module in the k-th time period; is the output power of the power generation device in the k-th time period; is the output power of the energy storage battery in the k-th time period.
[0070] Optionally, is also constrained by the flow rate relationship formula between the hydrogen production module and the hydrogen addition module: ; wherein is the flow rate of the hydrogen produced by the hydrogen production module to the hydrogen addition module; is the electro-hydrogen conversion value of the hydrogen production module.
[0071] Optionally, is also constrained by the start-stop condition relationship formula for the hydrogen production module: ; wherein is the rated capacity of the hydrogen production module; is the lower limit of the operating power of the hydrogen production module.
[0072] Optionally, when the energy supply module of the organic liquid hydrogen storage system based on renewable energy hydrogen production includes a power generation device and an energy storage battery, the parameter optimization model includes a battery energy storage sub-model for characterizing the charge and discharge process of the energy storage battery. The battery energy storage sub-model includes the following constraint formulas: The charging power of the energy storage battery And the input power of the power generation device to the energy storage battery Are constrained by the following formula: , Wherein, Is the charging efficiency of the energy storage battery.
[0073] Optionally, the discharge power of the energy storage battery And the input power of the energy storage battery to the hydrogen production module Are constrained by the following formula: , Wherein, Is the discharge efficiency of the energy storage battery.
[0074] Optionally, the battery level of the energy storage battery at the end of the k-th time period And the battery level at the end of the k+1-th time period Are constrained by the following formula: , Wherein, Represents the time interval from the end of the k-th time period to the end of the k+1-th time period.
[0075] Optionally, Is also subject to the battery capacity formula constraint for the energy storage battery: , Wherein, Is the rated capacity of the energy storage battery; Is the minimum state of charge of the energy storage battery, Is the maximum state of charge of the energy storage battery.
[0076] Optionally, And Are also subject to the power limit formula constraint for the energy storage battery: , , , Wherein, Is the maximum charging and discharging power of the energy storage battery, And Are binary variables that are mutually constrained, Indicates that the energy storage battery is in a charging state, Indicates that the energy storage battery is in a discharging state.
[0077] 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 formulas: Volume of the reactor (Hydrogenation reactor) of the hydrogenation module Is constrained by the following formula: , where a 1 Is the fitting parameter between the molar flow rate of the hydrogen inlet and the reactor volume of the hydrogenation module during the hydrogenation process; Is the flow rate of hydrogen generated by the hydrogen production module; Is the hydrogenation reaction conversion rate when the hydrogen storage medium reacts with hydrogen in the reactor of the hydrogenation module; Is the relative molecular mass of hydrogen.
[0078] Molar flow rate of hydrogen in the hydrogenation reaction Is constrained by the following formula: ; Optionally, the flow rate of the lean hydrogen organic liquid (LOHC - ) of the lean hydrogen storage tank flowing into the reactor of the hydrogenation module Is constrained by the following formula: , where, Is the relative molecular mass of the lean hydrogen organic liquid, Is the ratio of the molar amounts between hydrogen and the lean hydrogen organic liquid in the reaction equation of the hydrogenation reaction; Is the molar flow rate of hydrogen in the hydrogenation reaction; Flow rate of the rich hydrogen organic liquid flowing into the rich hydrogen storage tank Is constrained by the following formula: , where, Is the relative molecular mass of the rich hydrogen organic liquid, Is the ratio of the molar amounts between hydrogen and the rich hydrogen organic liquid in the reaction equation of the hydrogenation reaction; Is the molar flow rate of hydrogen in the hydrogenation reaction.
[0079] Optionally, formed by window operation, the volume of the reactor of the hydrogenation module Is constrained by the following formula: ; where, is the lower limit of the operation window of the reactor in the hydrogenation module, is the upper limit of the operation window of the reactor in the hydrogenation module; is the rated capacity of the reactor in the hydrogenation module.
[0080] Optionally, the parameter optimization model includes a sub-model of the organic liquid storage tank for the hydrogenation process, which is used to characterize the impact of the hydrogenation process on the transfer process of the hydrogen-rich storage tank. The sub-model of the organic liquid storage tank for the hydrogenation process includes the following constraint formulas: The time interval from the end of the k-th time period to the end of the (k + 1)-th time period of the hydrogen-rich storage tank on the hydrogen storage system side The organic liquid balance in is constrained by the following formula: , where, is the mass of the hydrogen-rich organic liquid in the hydrogen-rich storage tank at the end of the k-th time period, is the mass of the hydrogen-rich organic liquid in the hydrogen-rich storage tank at the end of the (k + 1)-th time period.
[0081] Optionally, the mass of the hydrogen-rich organic liquid in the hydrogen-rich storage tank is also constrained by the following formula to characterize that the initial and final capacities of the hydrogen-rich storage tank are equal during the operation period (usually 1 day): ; is also constrained by the following formula according to the capacity of the hydrogen-rich storage tank: , where, is the rated capacity of the hydrogen-rich storage tank; is the minimum storage state parameter of the hydrogen-rich storage tank, is the maximum storage state parameter of the hydrogen-rich storage tank.
[0082] Optionally, the parameter optimization model includes a sub-model of the organic liquid storage tank for the hydrogenation process, which is used to characterize the impact of the hydrogenation process on the transfer process of the hydrogen-poor storage tank. The sub-model of the organic liquid storage tank for the hydrogenation process includes the following constraint formulas: The time interval from the end of the k-th time period to the end of the (k + 1)-th time period of the hydrogen-poor storage tank on the hydrogen storage system side The organic liquid balance in is constrained by the following formula: , where, is the mass of the hydrogen-rich organic liquid in the hydrogen-poor storage tank at the end of the k-th time period, is the mass of the hydrogen-rich organic liquid in the hydrogen-poor storage tank at the end of the (k + 1)-th time period.
[0083] Optionally, is also constrained by the following formula according to the capacity of the hydrogen-poor storage tank: ; Wherein, is the rated capacity of the hydrogen - depleted storage tank; represents the minimum storage state parameter of the hydrogen - depleted storage tank, represents the maximum storage state parameter of the hydrogen - depleted storage tank.
[0084] In summary, in the embodiment of the present application, through the hydrogen - rich storage tank receiving module, the stable input of the hydrogen - rich organic liquid storage tank is realized, enabling the hydrogenation station system for dehydrogenation of organic liquids to 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, helps to improve the supply - demand imbalance problem caused by the output fluctuation at the hydrogen supply end during the operation of the hydrogenation station; Subsequently, the hydrogen - rich organic liquid in the hydrogen - rich storage tank undergoes a catalytic dehydrogenation reaction in the dehydrogenation module, releasing high - purity hydrogen while restoring the organic compound to the hydrogen - depleted state. After the hydrogen is released, it enters the hydrogen reserve module to buffer the impact of the hydrogen supply - end fluctuation on the hydrogenation station, ensuring that the hydrogenation equipment can operate stably under different load conditions. At the same time, through appropriate pressure regulation and storage optimization in the reserve module, the hydrogen supply has stronger regulation ability to meet the dynamic changes in the user - end demand. Finally, the hydrogenation equipment module extracts hydrogen from the hydrogen reserve module and inputs it to the hydrogen - using equipment to realize the terminal application of hydrogen energy. At the same time, the hydrogen - depleted storage tank after dehydrogenation returns to the organic liquid hydrogen storage system through the hydrogen - depleted storage tank transportation module, completing the closed - loop cycle of the storage tank. This cycle mechanism ensures the efficient utilization of the storage tank and reduces the resource waste caused by the idle storage tank, making the hydrogen storage - dehydrogenation - hydrogen supply process have higher collaborative optimization ability. Thus, through modular design, the embodiment of the present application enables the hydrogenation station to not only match the output change of the hydrogen supply end but also dynamically adjust according to the load fluctuation of the user end, enhancing the stability and flexibility of hydrogen supply. Through efficient dehydrogenation treatment, hydrogen storage, and storage tank recycling mechanisms, it effectively solves the problems of low dehydrogenation reaction efficiency, insufficient storage tank recycling rate, and limited collaborative optimization ability between the hydrogenation station and the hydrogen production end in the prior art, providing an innovative solution for the sustainable development of the hydrogen energy industry.
[0085] As Figure 6 shown, it is a complete planning process provided according to the embodiment of the present application: S1, Construction of the system structure of the organic liquid hydrogen storage hydrogenation station based on renewable - energy - based hydrogen production: According to the design and operation processes of hydrogen production and storage by renewable energy, hydrogen storage and dehydrogenation of organic liquids, and the hydrogenation station, construct the super - structure model of the entire system. This step aims to clarify the core modules of the system and their interaction relationships, providing a basis for subsequent modeling and optimization; S2, Construction of the system economic optimization objective: Taking into account the investment cost and operating cost of the equipment comprehensively, an optimization objective for the system economy is constructed, and the optimization direction with the minimum total cost as the goal is clarified, providing a basis for subsequent model optimization; S3. Modeling of renewable energy hydrogen production and storage system: For modules such as wind power generation, electrolyzer, battery energy storage, organic liquid hydrogenation reactor and storage tank, mathematical models are established respectively, and the dynamic coupling characteristics between the power generation side and the hydrogen storage system are analyzed emphatically; S4. Modeling of dehydrogenation system and compressed hydrogen storage system in hydrogen refueling station: Construct models of organic liquid dehydrogenation module, compressor, hydrogen storage bottle group and hydrogen demand in the hydrogen refueling station to ensure that the hydrogen refueling station can meet the dynamic hydrogen demand, and at the same time ensure the efficiency and safety of the dehydrogenation process and the operation of the storage tank; S5. Solving and result analysis of the optimization model of the organic liquid hydrogen storage hydrogen refueling station system: Based on the foregoing modeling results and optimization objectives, use the optimization algorithm to solve the optimal economy, configuration plan and scheduling strategy of the system, and analyze the optimization results to guide practical applications.
[0086] As Figure 7 shown, it is another complete planning process provided according to the embodiments of the present application: R1. System structure construction: According to the system requirements and design objectives, construct the overall structure model of the hydrogen refueling station system based on organic liquid dehydrogenation, laying a foundation for subsequent optimization; R2. Construction of optimization objective function: Establish the system optimization objective function, comprehensively consider equipment investment, operation and maintenance costs, so as to achieve the best economic benefits; R3. System modeling: Construct mathematical models of organic liquid dehydrogenation and storage tank, compressor, hydrogen storage bottle and hydrogen demand to describe the dynamic operation characteristics of each module; R4. Organic liquid dehydrogenation model: Establish 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 operation window constraints of the dehydrogenation reactor; R5. Organic liquid storage tank model for the organic liquid hydrogen release process in the hydrogen refueling station: Describe the mass balance constraints of the hydrogen-rich and hydrogen-poor organic liquid storage tanks, as well as the upper and lower limits of the storage tank capacity; R6. Hydrogen buffer tank model in the hydrogen refueling station: Describe the mass balance constraints and upper and lower limits of the capacity of the hydrogen buffer tank; R7. Compressor model in the hydrogen refueling station: Describe the power calculation of the compressor and the upper and lower limits of the flow rate, as well as the compression pressure constraints of each stage of the compressor; R8. Hydrogen storage bottle group model in the hydrogen refueling station: Describe the mass balance constraints and upper and lower limits of the pressure of the hydrogen storage bottle group, and construct the real gas state equation in the hydrogen storage bottle group; R9. Hydrogen filling machine model in the hydrogen refueling station: Describe the upper and lower limits of the flow rate of the hydrogen filling machine; R10, System coupling modeling: Establish a coupling model for the hydrogen production system and the hydrogen refueling system, and achieve dynamic connection between the two systems through the hydrogenation reactor; R11, Input of economic and technical parameters: Define the economic and technical parameters of the system, including equipment costs, operating expenses, reaction kinetics data, and time series data on the hydrogen load side of the hydrogen refueling station, to support model optimization; R12, Model solution: Use an optimization algorithm to solve the model, aiming to minimize the total system cost, and obtain the optimal configuration and scheduling plan. For example, methods such as Mixed-Integer Linear Programming or Nonlinear Programming can be used. For an optimization model containing discrete variables (such as the number of equipment) and continuous variables (such as power), solve it by calling the optimization solver (CPLEX) in the General Algebraic Modeling System (GAMS); R13, Analysis of optimization results: Analyze the optimization results, including the capacity configuration and operating characteristics of each device, to provide guidance for the design and operation of the actual system.
[0087] Reference Figure 8 , which shows an optimization device 40 for a hydrogen refueling station system based on organic liquid dehydrogenation provided by an embodiment of the present application, including: A modeling module 401, configured to establish a parameter optimization model constrained by the influence conditions of market fluctuations on hydrogen refueling demand according to a coupling physical model for characterizing the process of transferring hydrogen-rich storage tanks and hydrogen-poor storage tanks between an organic liquid hydrogen storage system and a hydrogen refueling station system based on organic liquid dehydrogenation; A hydrogen storage parameter solving module 402, configured to solve the parameter optimization model to obtain multiple hydrogen refueling station design parameter values for a hydrogen refueling station system based on organic liquid dehydrogenation; A hydrogen storage configuration module 403, configured to configure a hydrogen refueling station system based on organic liquid dehydrogenation according to the obtained multiple hydrogen refueling station design parameter values to obtain an optimized hydrogen refueling station system based on organic liquid dehydrogenation.
[0088] Optionally, the modeling module 401 includes: A coupling model sub-module, configured to establish a coupling physical model according to the transfer process of hydrogen-rich storage tanks and hydrogen-poor storage tanks; An optimization model sub-module, configured to establish a parameter optimization model under a preset optimization goal by using the quantitative relationship of demand formed by the influence of market fluctuations on hydrogen refueling demand as a constraint condition for the coupling physical model.
[0089] In summary, in the embodiments of the present application, through the hydrogen-rich storage tank receiving module, the stable input of the hydrogen-rich organic liquid storage tank is achieved, enabling the hydrogen refueling station system for dehydrogenation of organic liquids to 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 process and helps to improve the supply-demand imbalance problem caused by the output fluctuations at the hydrogen supply end during the operation of the hydrogen refueling station. Subsequently, the hydrogen-rich organic liquid in the hydrogen-rich storage tank undergoes a catalytic dehydrogenation reaction in the dehydrogenation module, releasing high-purity hydrogen and restoring the organic compound to a hydrogen-poor state. After the hydrogen is released, it enters the hydrogen storage module to buffer the impact of fluctuations at the hydrogen supply end on the hydrogen refueling station and ensure that the hydrogen refueling equipment can operate stably under different load conditions. At the same time, through appropriate pressure regulation and storage optimization in the storage module, the hydrogen supply has stronger adjustment capabilities to meet the dynamic changes in the user-end demand. Finally, the hydrogen refueling equipment module extracts hydrogen from the hydrogen storage module and inputs it to the hydrogen-consuming equipment to achieve the terminal application of hydrogen energy. At the same time, the hydrogen-poor storage tank after dehydrogenation returns to the organic liquid hydrogen storage system through the hydrogen-poor storage tank transportation module, completing the closed-loop cycle of the storage tank. This cycle mechanism ensures the efficient utilization of the storage tank and reduces the resource waste caused by the idle storage tank, enabling the hydrogen storage-dehydrogenation-hydrogen supply process to have higher collaborative optimization capabilities. Thus, through modular design, the embodiments of the present application enable the hydrogen refueling station to not only match the output changes at the hydrogen supply end but also dynamically adjust according to the load fluctuations at the user end, enhancing the stability and flexibility of hydrogen supply. Through efficient dehydrogenation treatment, hydrogen storage, and storage tank recycling mechanisms, the problems of low dehydrogenation reaction efficiency, insufficient storage tank recycling rate, and limited collaborative optimization capabilities between 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.
[0090] Referring to Figure 9 , which is a block diagram of an electronic device 500 according to another embodiment of the present invention. For example, the electronic device 500 may be provided as a server. The 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.
[0091] The processing component 502 included in the electronic device 500 further includes one or more processors, as well as memory resources represented by the memory 504 for storing instructions executable by the processing component 502, such as application programs. The application programs stored in the memory 504 may include one or more modules each corresponding to a set of instructions. In addition, the processing component 502 is configured to execute instructions to perform the methods provided in the embodiments of the present application.
[0092] The processing component 502 generally controls the overall operation of the electronic device 500, such as operations associated with display, telephone calls, data communication, camera operations, and recording operations. The processing component 502 may include one or more processors 520 to execute instructions to complete all or part of the steps of the above methods. In addition, the processing component 502 may include one or more modules to facilitate the interaction between the processing component 502 and other components.
[0093] The memory 504 is used to store various types of data to support the operation of the electronic device 500. The memory 504 can be implemented by any type of volatile or non-volatile storage 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.
[0094] The power component 506 provides power to various components of the electronic device 500. The power component 506 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power for the electronic device 500.
[0095] The multimedia component 508 includes an interface that provides an output interface between the electronic device 500 and the user. In some embodiments, the interface may include a liquid crystal display (LCD) and a touch panel (TP). In some embodiments, the multimedia component 508 includes a front camera and / or a rear camera.
[0096] 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 sent via the communication component 516.
[0097] The input / output I / O interface 512 provides an interface between the processing component 502 and the peripheral interface module.
[0098] The sensor component 514 includes one or more sensors for providing a status assessment of various aspects of the electronic device 500. For example, the sensor component 514 can detect the on / off state of the electronic device 500 and the relative positioning of the components. The sensor component 514 may include a proximity sensor configured to detect the presence of nearby objects without any physical contact. The sensor component 514 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications.
[0099] The communication component 516 is used to facilitate communication between the electronic device 500 and other devices in a wired or wireless manner. The electronic device 500 can access a communication standard-based wireless network, such as WiFi, a carrier network (such as 2G, 3G, 4G, or 5G), or a combination thereof.
[0100] In an exemplary embodiment, the electronic device 500 can 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 for implementing the methods provided in the embodiments of the present application.
[0101] In an exemplary embodiment, a non-transitory computer-readable storage medium including instructions is also provided, such as a memory 504 including instructions, and the above instructions can be executed by a processor 520 of the electronic device 500 to complete the above method.
[0102] The electronic device 500 can also operate based on an operating system stored in the memory 504, such as Windows ServerTM, Mac OS XTM, UnixTM, LinuxTM, FreeBSD TM, or the like.
[0103] It should be noted that for the method embodiments of the present application, for the sake of simple description, they are all expressed as a series of action combinations. However, those skilled in the art should know that the embodiments of the present application are not limited by the described action sequence, because according to the embodiments of the present application, certain steps can be performed in other sequences or simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification are all preferred embodiments, and the actions involved are not necessarily essential for the embodiments of the present application.
[0104] Those skilled in the art will readily think of other embodiments of the present application after considering the specification and practicing the application disclosed herein. The present application is intended to cover any variations, uses, or adaptations of the present application, which follow the general principles of the present application and include known common knowledge or conventional technical means in the technical field not disclosed in the present disclosure. The specification and embodiments are only regarded as exemplary, and the true scope and spirit of the present application are pointed out by the following claims.
[0105] It should be understood that the present application is not limited to the exact structures described above and shown in the drawings, and various modifications and changes can be made without departing from its scope. The scope of the present application is only limited by the appended claims.
Claims
1. A hydrogenation station system based on organic liquid dehydrogenation, characterized in that: include: Hydrogen-rich tank receiving module, dehydrogenation module, hydrogen storage module, hydrogenation equipment module and hydrogen-poor 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 an 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.
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 hydrogen production from renewable energy.
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 in a first gas 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. An optimization method for a hydrogenation station system based on organic liquid dehydrogenation, characterized in that: include: Based on a coupled physical model for characterizing the process of transferring hydrogen-rich tanks and hydrogen-poor 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; Solving the parameter optimization model to obtain multiple hydrogenation station design parameter values of the hydrogenation station system based on organic liquid dehydrogenation; 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.
6. The optimization method of the hydrogenation station system based on organic liquid dehydrogenation according to claim 5, characterized in that: The method is based on a coupled physical model for characterizing the process of transferring hydrogen-rich storage tanks and hydrogen-poor storage tanks between an organic liquid hydrogen storage system and a hydrogenation station system based on organic liquid dehydrogenation, and establishing a parameter optimization model constrained by the influence of market fluctuations on hydrogenation demand, 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 optimization method of the 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: The 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 the 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 produced 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 reaction equation of the dehydrogenation reaction; Flow rate of dehydrogenation reaction to generate hydrogen-poor organic liquid Constrained by the following formula: , in, is the relative molecular mass of the hydrogen-poor organic liquid, is the molar ratio between the hydrogen-poor organic liquid and the hydrogen-rich organic liquid in the reaction equation of the dehydrogenation reaction; The volume of the reactor of the dehydrogenation module due to 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 optimization method of the hydrogenation station system based on organic liquid dehydrogenation according to claim 5, characterized in that: The parameter optimization model includes an organic liquid storage tank sub-model of the hydrogenation station organic liquid dehydrogenation process for characterizing the influence of the dehydrogenation process on the hydrogen-rich storage tank transfer process. The organic liquid storage tank sub-model of the hydrogenation station organic liquid dehydrogenation process 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-rich storage tank at the hydrogen refueling station The organic liquid balance in is governed by the following formula: , 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 optimization method of the hydrogenation station system based on organic liquid dehydrogenation according to claim 5, characterized in that: The parameter optimization model includes an organic liquid storage tank sub-model of the hydrogenation station organic liquid dehydrogenation process for characterizing the influence of the dehydrogenation process on the hydrogen-poor storage tank transfer process. The organic liquid storage tank sub-model of the hydrogenation station organic liquid dehydrogenation process 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-depleted storage tank at the hydrogen filling station The organic liquid balance in is governed by the following formula: , 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 hydrogen-poor organic liquid in the hydrogen-poor storage tank at the end of the k+1th time period; It is also constrained by the following formula according to 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-poor storage tank.
10. The optimization method of a hydrogenation station system based on organic liquid dehydrogenation according to claim 5, characterized in that: 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 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 produced 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 bottle 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 optimization method of a hydrogenation station system based on organic liquid dehydrogenation according to claim 5, characterized in that: 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 input 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 constrained by the following formulas: , , , 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 is the output pressure of the second compressor, The output pressure of the third compressor is, 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: ; According to the hydrogen that passes 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 In the case of constraints, and It is also subject to the following formula: , , in, and are the investment cost coefficients of the compressors respectively.
12. The optimization method of a hydrogenation station system based on organic liquid dehydrogenation according to claim 5, characterized in that: 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, is the flow rate of hydrogen from the hydrogen storage tank entering 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 compression factor, and T is the temperature of hydrogen; Calculated according to the following formula: , in, is the density of hydrogen, , , are the fitting parameters respectively; According to the safety pressure limit of the hydrogen storage tank, the hydrogen gas pressure in the hydrogen storage tank 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, depending 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 amount of hydrogen in the hydrogen storage tank is also constrained by the following formula to indicate that the amount of hydrogen in the hydrogen storage tank is equal at the beginning and end of the operation cycle: 。 13. The optimization method of a hydrogenation station system based on organic liquid dehydrogenation according to claim 5, characterized in that: 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 filling machine, the flow rate of the hydrogen filling machine Subject to the following formula: , in, is the flow rate of hydrogen from the hydrogen storage tank entering the hydrogenation equipment module; In the case where the hydrogenation equipment module includes multiple hydrogenation machines, according to the rated flow rate limitation of the hydrogen storage tank, 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 optimization method for 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 organic liquid dehydrogenation are implemented as described in any one of claims 5 to 13.
Citation Information
Patent Citations
Hydrogen absorption dehydrogenation system based on liquid organic hydrogen carrier
CN112624037A
Operation management system
CN115362459A
Heat integration system based on organic liquid high-pressure hydrogen supply and storage and working method
CN115727259A
Distribution schedule management system for hydrogen storage cartridge, terminal equipment used for the system and distribution schedule management method
JP2006146431A
Demand prediction device, demand prediction method, demand prediction program and demand management system
JP2016170594A