A cascaded ammonium bisulfate thermochemical energy storage system and a method for energy storage and heat release.

Abstract

This invention belongs to the field of energy storage technology and discloses a cascaded ammonium bisulfate thermochemical energy storage system and a method for energy storage and heat release. The system includes a heat source, a heat storage unit, and a heat release unit. The heat storage unit absorbs heat from the heat source to decompose ammonium bisulfate in multiple steps. The decomposition products are stored and transported to the heat release unit, where ammonium bisulfate is resynthesized and heat is released in multiple steps for utilization. This invention proposes a cascaded ammonium bisulfate thermochemical energy storage system, which demonstrates excellent performance and potential in the field of energy storage and utilization. The system can operate according to a precisely controlled multi-step process, including efficient heat absorption, precise decomposition of energy storage chemicals, stable separation and storage of reaction products, and subsequent multi-step heat release and resynthesis of energy storage chemicals.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of energy storage, in particular to a cascade ammonium bisulfate thermo-chemical energy storage system and energy storage and heat release method. BACKGROUND

[0002] Under the background of global energy depletion, the importance of clean energy replacing traditional primary energy is increasingly prominent. At present, the installed capacity of clean energy such as wind energy and solar energy continues to rise in countries around the world, but due to the inherent characteristics of intermittency, instability and volatility of wind energy and solar energy, clean energy is difficult to be fully utilized. At the same time, a large amount of waste heat may be generated in the production and operation process of traditional industrial departments, resulting in a decrease in the heat energy utilization efficiency and production economy of the whole system. How to reasonably and efficiently utilize these possibly wasted energy has become the focus of many countries. In recent years, the development of energy storage technology provides a feasible solution for timely storage of temporary excess energy and adjustment of temporal and spatial imbalance of energy supply and demand.

[0003] Thermo-chemical energy storage technology is a kind of energy storage method based on reversible chemical reactions. Heat energy can be absorbed or released through the process of chemical bond breaking or recombination of chemical substances. Energy storage materials can be repeatedly used, stored and transported simply, conveniently and safely, and have high energy storage density. They can achieve long-term and long-distance energy storage at near ambient temperature, and are especially suitable for efficient storage and utilization of solar thermal energy and industrial waste heat. However, the current development of thermo-chemical energy storage technology is still mainly restricted by the performance optimization process of energy storage materials and reactors. The design of many thermo-chemical energy storage systems cannot be practically applied on a large scale due to low technical maturity, low energy storage efficiency or high cost. For example, the Ca(OH)2 decomposition / synthesis reversible reaction faces the problem of poor cycle stability due to particle wear and agglomeration, the MgH2 decomposition / synthesis reversible reaction faces the problems of slow reaction kinetics, poor reaction reversibility at high temperature and the need to transfer a large amount of gas products. SUMMARY

[0004] The purpose of the present application is to provide a cascade ammonium bisulfate thermo-chemical energy storage system and energy storage and heat release method to solve the problems of low technical maturity, low energy storage efficiency or high cost, and the inability to be practically applied on a large scale.

[0005] To achieve the above-mentioned purpose, the present application adopts the following technical solutions:

[0006] In a first aspect, the present application provides a cascade ammonium bisulfate thermo-chemical energy storage system, comprising a heat source, a heat storage unit and a heat release unit. The heat storage unit absorbs heat from the heat source and decomposes ammonium bisulfate in multiple steps. The products obtained by decomposition are stored and transported to the heat release unit, and ammonium bisulfate is synthesized again and releases heat in multiple steps for utilization.

[0007] Optionally, the heat storage unit comprises an ammonium bisulfate decomposition reactor, an NH3 decomposition reactor, an SO3 separation reactor and an SO3 decomposition reactor, the NH3 decomposition reactor and the SO3 separation reactor are connected to the ammonium bisulfate decomposition reactor, and the SO3 decomposition reactor is connected to the SO3 separation reactor; the products of the NH3 decomposition reactor and the SO3 decomposition reactor are stored and transported to the heat release unit; the heat source is solar energy or waste heat generated in industrial production processes.

[0008] Optionally, the ammonium bisulfate decomposition reactor is provided with an addition port of metal oxide MO for adding metal oxide MO.

[0009] Optionally, the ammonium bisulfate decomposition reactor is provided with an NH3 output pipeline and an MSO4 output pipeline, the NH3 output pipeline is connected to the NH3 decomposition reactor, and the MSO4 output pipeline is connected to the SO3 separation reactor.

[0010] Optionally, the SO3 separation reactor is provided with a metal oxide MO circulation pipeline connected to the ammonium bisulfate decomposition reactor for transporting metal oxide MO.

[0011] Optionally, the SO3 separation reactor is provided with an SO3 pipeline connected to the SO3 decomposition reactor, and the SO3 decomposition reactor and the NH3 decomposition reactor transport decomposition products to a storage tank and then to the heat release unit.

[0012] Optionally, the heat release unit comprises an ammonium bisulfate synthesis reactor, an SO3 synthesis reactor and an NH3 synthesis reactor; the SO3 synthesis reactor and the NH3 synthesis reactor are both connected to the ammonium bisulfate synthesis reactor, the NH3 synthesis reactor is connected to the NH3 decomposition reactor through a storage tank and a pipeline, and the SO3 synthesis reactor is connected to the SO3 decomposition reactor through a storage tank and a pipeline; the reaction heat of the ammonium bisulfate synthesis reactor, the SO3 synthesis reactor and the NH3 synthesis reactor is used for output to an external heat supply unit.

[0013] Optionally, the ammonium bisulfate synthesis reactor is provided with an ammonium bisulfate delivery pipe connected to the ammonium bisulfate decomposition reactor; the ammonium bisulfate decomposition reactor is provided with an H2O delivery pipe connected to the ammonium bisulfate synthesis reactor.

[0014] Optionally, the SO3 synthesis reactor is provided with an SO3 delivery pipe connected to the ammonium bisulfate synthesis reactor; the NH3 synthesis reactor is provided with an NH3 delivery pipe connected to the ammonium bisulfate synthesis reactor.

[0015] In a second aspect, the application provides a heat storage and heat release method of a cascade ammonium bisulfate thermochemical energy storage system, comprising the following steps:

[0016] The ammonium bisulfate decomposition reactor is provided with ammonium bisulfate and metal oxide MO, and endothermic reaction is generated by absorbing heat source heat to obtain MSO4 and NH3 gas; the NH3 gas is transported to the NH3 decomposition reactor, and decomposition reaction is generated by absorbing heat source heat to obtain N2 and H2 for storage and transportation; MSO4 is separated in the SO3 separation reactor by absorbing heat source heat to obtain SO3 transported to the SO3 decomposition reactor; SO3 is decomposed in the SO3 decomposition reactor by absorbing heat source heat to obtain SO2 and O2 for storage and transportation.

[0017] When heat needs to be released, the ammonium bisulfate synthesis reactor, the SO3 synthesis reactor and the NH3 synthesis reactor release heat through exothermic reaction.

[0018] Compared with the prior art, the present application has the following technical effects:

[0019] The present application proposes a kind of ammonium bisulfate thermal chemical energy storage system of cascade type, and this system has shown excellent performance and potential in the field of energy storage and utilization.The system can be operated according to the multi-step process of accurate control, including efficient heat absorption, accurate decomposition of energy storage chemicals, stable separation and storage of reaction products, and subsequent multi-step heat release and re-synthesis of energy storage chemicals.

[0020] Specifically, the system first effectively absorbs heat such as solar energy and industrial waste heat into specific heat exchange devices. Then, these heat acts on energy storage chemicals such as ammonium bisulfate, causing it to decompose at high temperatures, converting thermal energy into chemical energy. In this process, the system precisely controls the decomposition process to ensure efficient and safe reactions.

[0021] In the separation and storage stage of reaction products, the system uses advanced physical or chemical separation technology to stably separate the decomposed products, and stores them in specific storage containers or equipment for long-term and safe storage. This step not only ensures the purity and stability of the reaction products, but also lays a solid foundation for subsequent energy release and utilization.

[0022] When energy needs to be released, the system will start the multi-step heat release and energy storage chemical re-synthesis process again. By precisely controlling the reaction conditions, the system can gradually release the heat stored in chemical energy while regenerating the energy storage chemicals. This reversible process makes the energy storage system have high energy density and cycle stability, and can provide long-term and stable energy support.

[0023] The cascade ammonium bisulfate thermochemical energy storage system fully utilizes the decomposition characteristics of ammonium bisulfate and other energy storage chemicals, realizes the flexible storage, transportation and timely utilization of solar energy, industrial waste heat and other difficult-to-utilize heat. The system not only improves the energy storage efficiency of the thermochemical energy storage technology, but also enhances the flexibility and reliability of the system, providing a new and beneficial solution for the field of energy storage and utilization. The system is expected to be widely used in the fields of industry, power, transportation and other fields, and make important contributions to solving the energy crisis and promoting sustainable development. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 The system structure diagram of the present application. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0026] In the description of the present application, it should be understood that the terms "include" and "contain" indicate the presence of described features, whole, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, whole, steps, operations, elements, components and / or sets thereof.

[0027] It should also be understood that the terms used in the present application specification are only for the purpose of describing specific embodiments and are not intended to limit the present application. As used in the present application specification and the appended claims, unless otherwise clear from the context, the singular forms "a", "an" and "the" are intended to include the plural forms.

[0028] It should be further understood that the term "and / or" used in the present application specification and the appended claims means any combination of one or more of the associated listed items and all possible combinations, and includes these combinations, for example, A and / or B can represent three cases of A alone, A and B together, and B alone. In addition, the character " / " in the present application generally represents an "or" relationship between the front and rear associated objects.

[0029] It should be understood that, although the terms first, second, third, etc. can be employed in describing the preset ranges, etc. in the embodiments of the present application, these preset ranges should not be limited to these terms. These terms are only used to distinguish the preset ranges from each other. For example, the first preset range can also be referred to as the second preset range, and similarly, the second preset range can also be referred to as the first preset range, without departing from the scope of the embodiments of the present application.

[0030] Depending on the context, the word "if" as used herein can be interpreted to mean "when" or "while" or "in response to determining" or "in response to detecting." Similarly, the phrase "if it is determined" or "if (a stated condition or event) is detected" can be interpreted to mean "when it is determined" or "in response to determining" or "when (the stated condition or event) is detected" or "in response to detecting (the stated condition or event)".

[0031] Various structural diagrams according to the disclosed embodiments of the present application are shown in the accompanying drawings. These diagrams are not drawn to scale, in which certain details are exaggerated for the purpose of clarity, and certain details can be omitted. The shapes of various regions, layers, and the relative sizes and positional relationships between them shown in the diagrams are only exemplary, and in actuality, they can deviate due to manufacturing tolerances or technical limitations, and a person skilled in the art can additionally design regions / layers with different shapes, sizes, and relative positions according to actual needs.

[0032] Embodiment 1, please refer to Figure 1 The present application provides a cascade ammonium bisulfate thermochemical energy storage system, including a heat source, a heat storage unit, and a heat release unit. The heat storage unit absorbs heat from the heat source and performs multi-step decomposition of ammonium bisulfate. The products obtained by decomposition are stored and transported to the heat release unit for re-synthesis of ammonium bisulfate and multi-step heat release for utilization.

[0033] The system exhibits excellent performance and potential in the field of energy storage and utilization. The system can operate according to a precisely controlled multi-step process, including efficient heat absorption, accurate decomposition of energy storage chemicals, stable separation and storage of reaction products, and subsequent multi-step heat release and re-synthesis of energy storage chemicals.

[0034] Embodiment 2, the present application provides a cascade ammonium bisulfate thermochemical energy storage system, including: an ammonium bisulfate decomposition reactor, an NH3 decomposition reactor; an NH3 synthesis reactor; a SO3 separation reactor; a SO3 decomposition reactor; a SO3 synthesis reactor; an ammonium bisulfate synthesis reactor, as Figure 1The heat input source can be solar energy, waste heat generated by industrial production processes, and other difficult-to-use and need-to-store heat energy, which serves as the heat source of the ammonium bisulfate decomposition reactor, the NH3 decomposition reactor, the SO3 separation reactor, and the SO3 decomposition reactor. The output and utilization mode of the heat released by the NH3 synthesis reactor, the SO3 synthesis reactor, and the ammonium bisulfate synthesis reactor can be power generation, heat supply, and other activities that need to use heat. Alternatively, a heat exchanger can be arranged in the system to improve the heat energy utilization efficiency and reduce heat loss; the system can be provided with storage and transportation facilities for various chemicals.

[0035] Specifically, the ammonium bisulfate decomposition reactor is a device site where the endothermic decomposition reaction of ammonium hydrogen sulfate (NH4HSO4) occurs, and the main endothermic reaction is NH4HSO4+MO→NH3+H2O+MSO4. In order to effectively separate SO3 gas from H2O and NH3 gas, a metal oxide MO is used as a reactant to generate an intermediate product MSO4. By controlling the reaction temperature, H2O and NH3 gas can be gradually separated first, and SO3 still exists in the form of MSO4 and is not released temporarily. The generated NH3 is transported to the NH3 decomposition reactor, the generated H2O can be discharged or stored and then transported to the ammonium bisulfate synthesis reactor as a reactant, and the generated MSO4 is transported to the SO3 separation reactor. Alternatively, the metal M can be selected from Zn, Cu, Ni, Mn, Pb, or Mg.

[0036] The NH3 decomposition reactor is a device site where the endothermic decomposition reaction of ammonia (NH3) occurs, and the main endothermic reaction is 2NH3→N2+3H2. In order to improve the speed of the reaction, a suitable catalyst such as a ruthenium-based catalyst can be used. The generated N2 and H2 can be separated by adsorption purification to obtain high-purity hydrogen products, or can be stored and transported to the NH3 synthesis reactor as a reactant.

[0037] The NH3 synthesis reactor is a device site where the exothermic synthesis reaction of hydrogen (H2) and nitrogen (N2) occurs, and the main exothermic reaction is N2+3H2→2NH3. At the time and place where heat is needed, the reactor can realize the reaction of N2 and H2 to synthesize ammonia based on the Haber-Bosch process at 400-700°C, 10-30 MPa, and catalytic conditions, and release a large amount of heat, thereby realizing the release and utilization of stored energy. The generated NH3 is stored and then transported to the ammonium bisulfate synthesis reactor as a reactant.

[0038] The SO3 separation reactor is the device site where the endothermic decomposition reaction of intermediate product metal sulfate (MSO4) occurs and releases SO3 gas. The main endothermic reaction is MSO4→ MO + SO3, thereby realizing the release of SO3 gas and the regeneration of metal oxide MO. The generated SO3 is transported to the SO3 decomposition reactor, and the generated metal oxide MO returns to the ammonium bisulfate decomposition reactor to participate in the reaction as a reactant, realizing recycling.

[0039] The SO3 decomposition reactor is the device site where the endothermic decomposition reaction of sulfur trioxide (SO3) occurs. The main endothermic reaction is 2SO3→ 2SO2 + O2. The generated SO2 and O2 can be stored and transported to the SO3 synthesis reactor as reactants.

[0040] The SO3 synthesis reactor is the device site where the exothermic synthesis reaction of sulfur dioxide (SO2) and oxygen (O2) occurs. The main exothermic reaction is 2SO2 + O2→ 2SO3. At the time and place where heat is needed, this reactor is used to realize the reaction of SO2 and O2 to synthesize SO3 and release a large amount of heat. The generated SO3 is stored and transported to the ammonium bisulfate synthesis reactor as a reactant.

[0041] The ammonium bisulfate synthesis reactor is the device site where the exothermic synthesis reaction of sulfur trioxide (SO3), ammonia (NH3), and water (H2O) occurs. The main exothermic reaction is NH3 + H2O + SO3→ NH4HSO4. At the time and place where heat is needed, this reactor is used to realize the recombination of SO3, NH3, and H2O, the regeneration of ammonium bisulfate, and heat release. The generated NH4HSO4 is stored and transported back to the ammonium bisulfate decomposition reactor as a reactant.

[0042] The present application is a thermochemical energy storage system based on ammonium bisulfate (NH4HSO4). Through the decomposition and synthesis reactions of ammonium bisulfate, efficient energy storage and release are realized. When storing energy, the water vapor, ammonia, and metal sulfate produced by the decomposition of ammonium bisulfate can be stored separately, without the need to maintain the entire system at high temperature, thereby reducing energy consumption. When energy needs to be released, through the corresponding synthesis reaction, the stored chemicals can be converted back into ammonium bisulfate, and a large amount of heat is released. This energy storage method not only has high efficiency, but also can flexibly respond to changes in energy demand.

[0043] The application realizes the recycling of chemical substances through a carefully designed reaction process. In the ammonium bisulfate decomposition process, metal oxide MO participates in the reaction as a reactant to generate metal sulfate MSO4. In the subsequent SO3 separation and SO3 synthesis processes, MSO4 is decomposed and regenerated into MO, realizing the recycling of MO. Similarly, in the NH3 decomposition and NH3 synthesis processes, hydrogen and nitrogen are also recycled. This recycling of chemical substances not only reduces the operating cost of the system, but also reduces waste generation, meeting the requirements of green environmental protection.

[0044] The application can flexibly adjust the energy storage and release processes according to changes in energy demand. During periods of sufficient energy supply, energy can be stored through the decomposition reaction of ammonium bisulfate; during periods of greater energy demand, the stored energy can be released through the corresponding synthesis reaction. In addition, since the system is based on chemical reactions to achieve energy storage and release, it can adapt to energy demand under different temperature, pressure, and other conditions. This flexibility makes the system have wide application prospects in the field of energy storage and supply.

[0045] The application adopts efficient separation technology to realize effective separation of reaction products. In the ammonium bisulfate decomposition process, water vapor, ammonia, and metal sulfate can be separated step by step by controlling the reaction temperature. In the NH3 decomposition process, high-purity hydrogen and nitrogen can be separated by adsorption purification and other methods. These efficient separation technologies not only improve the operating efficiency of the system, but also ensure the quality of the reaction products.

[0046] The application fully considers safety and reliability in design and operation. In the ammonium bisulfate decomposition and synthesis processes, by accurately controlling the reaction conditions (such as temperature, pressure, etc.), dangerous substances can be avoided or safety accidents can be avoided. In addition, the system is also equipped with corresponding safety monitoring and alarm devices, which can take timely measures to ensure system safety when abnormal conditions occur.

[0047] In another aspect, the application provides a method for storing and releasing heat of a cascade ammonium bisulfate thermochemical energy storage system, characterized in that it comprises the following steps:

[0048] Ammonium bisulfate and metal oxide MO are arranged in the ammonium bisulfate decomposition reactor, and an endothermic reaction is carried out by absorbing heat from a heat source to obtain MSO4 and NH3 gas; NH3 gas is transported to the NH3 decomposition reactor, and a decomposition reaction is carried out by absorbing heat from a heat source to obtain N2 and H2, which are stored and transported; MSO4 is transported to the SO3 decomposition reactor by absorbing heat from a heat source in the SO3 separation reactor to obtain SO3; SO3 is transported to the SO3 decomposition reactor by absorbing heat from a heat source in the SO3 decomposition reactor to obtain SO2 and O2, which are stored and transported.

[0049] When heat is needed, the ammonium bisulfate synthesis reactor, the SO3 synthesis reactor, and the NH3 synthesis reactor release heat through exothermic reactions.

[0050] The core of this method is to achieve efficient thermochemical energy storage and heat release of ammonium bisulfate through the cascade of multiple reactors.

[0051] During the energy storage phase, the ammonium bisulfate decomposition reactor uses a heat source to convert ammonium bisulfate and metal oxide MO into MSO4 and NH3 gas through an endothermic reaction, achieving energy storage. The NH3 gas is transported to the NH3 decomposition reactor, and the MSO4 is further reacted in the SO3 separation reactor to release SO3 gas, providing raw materials for subsequent exothermic reactions.

[0052] During the heat release phase, the combined action of the ammonium bisulfate synthesis reactor, the SO3 synthesis reactor, and the NH3 synthesis reactor achieves efficient energy release. These reactors use stored chemicals to release a large amount of heat under appropriate conditions, meeting the demand for heat energy.

[0053] This technical solution not only improves energy utilization efficiency but also reduces system operating costs through the recycling of chemicals. In addition, the cascade design makes the system more flexible, allowing for adjustments to the energy storage and heat release ratio according to actual needs to meet different scenarios. In summary, this cascade ammonium bisulfate thermochemical energy storage system exhibits efficient, environmentally friendly, and flexible technical effects.

[0054] The above content only illustrates the technical idea of the present application and cannot limit the protection scope of the present application. Any modification made in accordance with the technical idea of the present application on the basis of the technical solution falls within the protection scope of the claims of the present application.

Claims

1. A cascaded ammonium bisulfate thermo-chemical energy storage system, characterized in that, The system comprises a heat source, a heat storage unit and a heat release unit; the heat storage unit absorbs heat from the heat source, and decomposes ammonium bisulfate in multiple steps; the products obtained by the decomposition are stored and transported to the heat release unit, and ammonium bisulfate is re-synthesized and released heat in multiple steps for utilization; The heat storage unit comprises an ammonium bisulfate decomposition reactor, an NH3 decomposition reactor, an SO3 separation reactor and an SO3 decomposition reactor, the NH3 decomposition reactor and the SO3 separation reactor are connected to the ammonium bisulfate decomposition reactor, and the SO3 decomposition reactor is connected to the SO3 separation reactor; the products of the NH3 decomposition reactor and the SO3 decomposition reactor are stored and transported to the heat release unit; The heat source is solar energy or waste heat generated in industrial production processes; The ammonium bisulfate decomposition reactor is provided with an NH3 output pipeline and an MSO4 output pipeline, the NH3 output pipeline is connected to the NH3 decomposition reactor, and the MSO4 output pipeline is connected to the SO3 separation reactor; The heat release unit comprises an ammonium bisulfate synthesis reactor, an SO3 synthesis reactor and an NH3 synthesis reactor; the SO3 synthesis reactor and the NH3 synthesis reactor are connected to the ammonium bisulfate synthesis reactor, the NH3 synthesis reactor is connected to the NH3 decomposition reactor through a storage tank and a pipeline, and the SO3 synthesis reactor is connected to the SO3 decomposition reactor through a storage tank and a pipeline; the reaction heat of the ammonium bisulfate synthesis reactor, the SO3 synthesis reactor and the NH3 synthesis reactor is used for output to an external heat supply unit.

2. A cascaded ammonium bisulfate thermo-chemical energy storage system according to claim 1, characterized in that, The ammonium bisulfate decomposition reactor is provided with an addition port of metal oxide MO for adding metal oxide MO.

3. A cascaded ammonium bisulfate thermo-chemical energy storage system according to claim 1, characterized in that, The SO3 separation reactor is provided with a metal oxide MO circulation pipeline connected to the ammonium bisulfate decomposition reactor for transporting the metal oxide MO.

4. The cascaded ammonium bisulfate thermo-chemical energy storage system of claim 1, wherein, The SO3 separation reactor is provided with an SO3 pipeline connected to the SO3 decomposition reactor, and the SO3 decomposition reactor and the NH3 decomposition reactor transport the decomposition products to a storage tank and then to the heat release unit.

5. The cascaded ammonium bisulfate thermo-chemical energy storage system of claim 1, wherein, The ammonium bisulfate synthesis reactor is provided with an ammonium bisulfate delivery pipe connected to the ammonium bisulfate decomposition reactor; the ammonium bisulfate decomposition reactor is provided with an H2O delivery pipe connected to the ammonium bisulfate synthesis reactor.

6. A cascaded ammonium bisulfate thermo-chemical energy storage system according to claim 1, wherein, The SO3 synthesis reactor is provided with an SO3 delivery pipe connected to the ammonium bisulfate synthesis reactor; the NH3 synthesis reactor is provided with an NH3 delivery pipe connected to the ammonium bisulfate synthesis reactor.

7. A method for energy storage and heat release based on the thermal energy storage system of hydronium sulphate cascades according to any of claims 1 to 6, characterized in that, The system comprises the following steps: The ammonium bisulfate decomposition reactor is provided with ammonium bisulfate and metal oxide MO, and an endothermic reaction occurs by absorbing heat from the heat source to obtain MSO4 and NH3 gas; the NH3 gas is transported to the NH3 decomposition reactor, and a decomposition reaction occurs by absorbing heat from the heat source to obtain N2 and H2, which are stored and transported; the MSO4 is transported to the SO3 decomposition reactor by undergoing a separation reaction in the SO3 separation reactor by absorbing heat from the heat source; the SO3 undergoes a decomposition reaction in the SO3 decomposition reactor by absorbing heat from the heat source to obtain SO2 and O2, which are stored and transported; When heat is needed, the ammonium bisulfate synthesis reactor, the SO3 synthesis reactor and the NH3 synthesis reactor release heat by releasing heat.

Images