Industrial multi-energy complementary carbon neutralization system

Abstract

According to the industry multi-energy complementary carbon neutralization system, a natural energy conversion system and a thermal power station output electric energy to an electric energy supply system, and the electric energy supply system supplies the electric energy; the thermal power station outputs carbon dioxide to the coal chemical system through the carbon reuse system; the coal chemical industry system outputs an energetic solid and an energetic liquid to the steel and iron manufacturing system; the carbon reuse system comprises a carbon capture system and a carbon utilization system, and the carbon capture system captures carbon dioxide and conveys the carbon dioxide to the carbon utilization system; the carbon utilization system receives carbon dioxide of the thermal power station and the carbon capture system and outputs the carbon dioxide to the coal chemical system. A multi-energy complementary carbon neutralization mode is achieved, renewable energy sources are brought into the high-energy-consumption industry, and low-carbon transformation of the renewable energy sources is accelerated; and moreover, the use ratio of fossil energy is reduced, the energy utilization efficiency is improved, carbon dioxide emission is reduced, the energy utilization ratio of new energy in the high-energy-consumption industry is improved, and low carbonization of the emission side in the high-energy-consumption industry is achieved.

Description

Technical Field

[0001] This application relates to the field of carbon neutrality multi-energy complementary technology, and in particular to an industry multi-energy complementary carbon neutrality system. Background Art

[0002] With climate change becoming increasingly serious, achieving carbon neutrality is a globally agreed-upon solution. Typical high-energy-consuming industries, such as thermal power, coal chemical industry, building materials, metallurgy, transportation, and construction, account for over 60% of total energy consumption, resulting in high energy consumption and significant carbon dioxide emissions.

[0003] Specifically, traditional high-energy-consuming industries such as coal chemical industry, metallurgy, building materials, transportation, and construction mainly use coal, oil, natural gas, etc. as energy or raw materials for production activities, with huge energy consumption and high carbon dioxide emissions. Summary of the Invention

[0004] Based on this, it is necessary to provide an industry-wide multi-energy complementary carbon neutrality system.

[0005] One embodiment of the present application is an industry multi-energy complementary carbon neutrality system, which includes a natural energy conversion system, an electric energy supply system, a thermal power station, a carbon reuse system, a coal chemical system, and a steel manufacturing system;

[0006] The natural energy conversion system and the thermal power station respectively output electric energy to the electric energy supply system, and the electric energy supply system is used to supply electric energy;

[0007] The thermal power station also outputs carbon dioxide to the coal chemical system through the carbon reuse system;

[0008] The coal chemical system outputs energetic solids and energetic liquids to the steel manufacturing system;

[0009] The carbon reuse system includes a carbon capture system and a carbon utilization system.

[0010] The carbon capture system is used to capture carbon dioxide and transmit it to the carbon utilization system;

[0011] The carbon utilization system is used to receive carbon dioxide from the thermal power station and the carbon capture system, and output it to the coal chemical system.

[0012] The above-mentioned industry multi-energy complementary carbon neutrality system achieves a multi-energy complementary carbon neutrality model through the coordination of natural energy conversion systems, power supply systems, thermal power plants, carbon reuse systems, coal chemical systems and steel manufacturing systems, thereby realizing the integration of renewable energy into high-energy-consuming industries to accelerate their low-carbon transformation; and cleverly complements the high-energy-consuming industries such as thermal power plants, coal chemical systems and steel manufacturing systems with the natural energy conversion system, and combines the power supply system and carbon reuse system to achieve energy supply and carbon reduction. The constructed carbon neutrality system is not limited to small industrial parks and can be extended to large-scale applications; it is also conducive to reducing the proportion of fossil energy use, improving energy utilization efficiency, reducing carbon dioxide emissions, and increasing the proportion of energy utilization of new energy in high-energy-consuming industries, so as to accelerate the low-carbon transformation of high-energy-consuming industries on the energy side; promote the extension of the industrial chain of typical high-energy-consuming industries, establish material and energy complementarity between industries, promote the optimization, integration and intensive development of high-energy-consuming industries, and realize the low-carbonization of high-energy-consuming industries on the emission side.

[0013] Exemplarily, the power supply system includes a power supply device and a power conversion device, wherein the power supply device is used to supply power, and the power conversion device is used to electrolyze water during the low electricity consumption period to output hydrogen and oxygen to the coal chemical system and the steel manufacturing system respectively.

[0014] In some embodiments, the carbon reuse system further includes a carbon sequestration system, and the carbon utilization system is further configured to output excess carbon dioxide to the carbon sequestration system.

[0015] In some embodiments, the carbon capture system is disposed inside the thermal power station, or adjacent to the thermal power station, or adjacent to the coal chemical system.

[0016] In some embodiments, the multi-energy complementary carbon neutrality system for industries further includes a building materials manufacturing system;

[0017] The thermal power station, the coal chemical system and the steel manufacturing system respectively output solid products to the building materials manufacturing system.

[0018] In some embodiments, the industry multi-energy complementary carbon neutrality system further includes a heat energy supply system;

[0019] The natural energy conversion system also outputs thermal energy to the thermal energy supply system.

[0020] In some embodiments, the natural energy conversion system includes a water energy conversion system, a photothermal conversion system, a photovoltaic conversion system, a wind power conversion system and a biomass conversion system, and the water energy conversion system, the photothermal conversion system, the photovoltaic conversion system, the wind power conversion system and the biomass conversion system are respectively used for water energy conversion, photothermal conversion, photovoltaic conversion, wind power conversion and biomass conversion.

[0021] In some embodiments, the multi-energy complementary carbon neutral system for industries further comprises low-carbon buildings;

[0022] The electric energy supply system is used to supply electric energy to the low-carbon building, and the thermal energy supply system is used to supply thermal energy to the low-carbon building.

[0023] In some embodiments, the industry multi-energy complementary carbon neutrality system also includes transportation equipment, and the power supply system is used to supply power to the transportation equipment.

[0024] In some embodiments, the industry multi-energy complementary carbon neutrality system also includes an energy storage system, and the power supply system is used to supply power to the energy storage system.

[0025] In some embodiments, the industry multi-energy complementary carbon neutrality system further includes a fossil energy supply system for providing the fossil energy to the thermal power station;

[0026] Among them, the fossil energy includes natural gas, oil and coal. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the conventional technology, the following briefly introduces the drawings required for use in the embodiments or the conventional technology descriptions. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0028] Figure 1 This is a structural schematic diagram of the first embodiment of the industry multi-energy complementary carbon neutrality system described in this application.

[0029] Figure 2 This is a structural schematic diagram of the second embodiment of the industry multi-energy complementary carbon neutrality system described in this application.

[0030] Figure 3 for Figure 2 A schematic structural diagram of a carbon reuse system according to the illustrated embodiment.

[0031] Figure 4 This is an application diagram of the third embodiment of the multi-energy complementary carbon neutrality system for the industry described in this application.

[0032] Reference numerals:

[0033] 100. Multi-energy complementary carbon neutrality system for the industry;

[0034] 110. Natural energy conversion system;

[0035] 111. Fossil energy supply system;

[0036] 120. Power supply system;

[0037] 121. Energy storage system;

[0038] 130. Thermal power station;

[0039] 140. Carbon reuse system;

[0040] 141. Carbon capture system;

[0041] 142. Carbon utilization system;

[0042] 143. Carbon sequestration system;

[0043] 150. Coal chemical system;

[0044] 160. Steel Manufacturing System

[0045] 170. Building materials manufacturing system,

[0046] 180. Heat supply system;

[0047] 190. Low-carbon buildings;

[0048] 191. Transportation equipment. DETAILED DESCRIPTION

[0049] To make the above-mentioned objects, features, and advantages of the present application more clearly understood, the specific embodiments of the present application are described in detail below with reference to the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways than those described herein, and those skilled in the art can make similar improvements without violating the scope of the present application. Therefore, the present application is not limited to the specific embodiments disclosed below.

[0050] It should be noted that when a component is referred to as being "fixed to" or "disposed on" another component, it may be directly on the other component or there may be a central component. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may be a central component at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in the specification of this application are for illustrative purposes only and do not represent the only implementation method.

[0051] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of such features. Throughout the description of this application, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0052] In this application, unless otherwise expressly specified or limited, a first feature being “above” or “below” a second feature may mean that the first feature is directly in contact with the second feature, or that the first feature and the second feature are indirectly in contact through an intermediate medium. Furthermore, a first feature being “above,” “above,” or “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below,” “below,” or “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0053] Unless otherwise defined, all technical and scientific terms used in the specification of this application have the same meaning as commonly understood by those skilled in the art to which this application belongs. The terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and or" used in the specification of this application includes any and all combinations of one or more of the relevant listed items.

[0054] Traditional industries such as coal chemical industry, metallurgy, and building materials are not closely connected, but there is mutual utilization of energy and materials among these industries. By optimizing and integrating high-energy-consuming industries and developing them intensively, the intermediate products, waste, or waste heat of these industries can be recycled among each other, which can improve the efficiency of energy and material utilization and achieve low-carbon development in these industries. This application discloses a multi-industry energy-complementary carbon neutralization system, which includes some or all of the technical features of the following embodiments; that is, the multi-industry energy-complementary carbon neutralization system includes some or all of the following structures. In one embodiment of the present application, an industry multi-energy complementary carbon neutrality system includes a natural energy conversion system, an electric energy supply system, a thermal power station, a carbon reuse system, a coal chemical system and a steel manufacturing system; the natural energy conversion system and the thermal power station respectively output electric energy to the electric energy supply system, and the electric energy supply system is used to supply electric energy; the thermal power station also outputs carbon dioxide to the coal chemical system through the carbon reuse system; the coal chemical system outputs energy-containing solids and energy-containing liquids to the steel manufacturing system; wherein, the carbon reuse system includes a carbon capture system and a carbon utilization system, and the carbon capture system is used to capture carbon dioxide and transport it to the carbon utilization system; the carbon utilization system is used to receive carbon dioxide from the thermal power station and the carbon capture system, and output it to the coal chemical system. The above-mentioned industry multi-energy complementary carbon neutrality system achieves a multi-energy complementary carbon neutrality model through the coordination of natural energy conversion systems, power supply systems, thermal power plants, carbon reuse systems, coal chemical systems and steel manufacturing systems, thereby realizing the integration of renewable energy into high-energy-consuming industries to accelerate their low-carbon transformation; and cleverly complements the high-energy-consuming industries such as thermal power plants, coal chemical systems and steel manufacturing systems with the natural energy conversion system, and combines the power supply system and carbon reuse system to achieve energy supply and carbon reduction. The constructed carbon neutrality system is not limited to small industrial parks and can be extended to large-scale applications; it is also conducive to reducing the proportion of fossil energy use, improving energy utilization efficiency, reducing carbon dioxide emissions, and increasing the proportion of energy utilization of new energy in high-energy-consuming industries, so as to accelerate the low-carbon transformation of high-energy-consuming industries on the energy side; promote the extension of the industrial chain of typical high-energy-consuming industries, establish material and energy complementarity between industries, promote the optimization, integration and intensive development of high-energy-consuming industries, and realize the low-carbonization of high-energy-consuming industries on the emission side.

[0055] As an example, the industry multi-energy complementary carbon neutrality system described in each embodiment of this application is a comprehensive energy and industrial system that aims to achieve the goal of carbon neutrality through the complementarity of multiple energy forms and the coordination of different industrial processes. In one embodiment, the industry multi-energy complementary carbon neutrality system includes a natural energy conversion system, an electric energy supply system, a thermal power station, a carbon reuse system, a coal chemical system, and a steel manufacturing system, which are described in detail below.

[0056] As an example, a natural energy conversion system is responsible for converting renewable energy sources such as solar energy, wind energy, hydropower, and biomass energy into electricity or other usable energy forms. For example, a solar photovoltaic power station uses photovoltaic panels to convert sunlight into direct current (DC) electricity, which is then converted to AC electricity that can be connected to the power grid via an inverter. A wind power plant uses wind power to rotate blades, which in turn drives a generator to generate electricity. The remaining embodiments are similar and are not described in detail here.

[0057] For example, the power supply system serves as the transmission and distribution hub for the entire system. It receives power input from natural energy conversion systems and thermal power plants, and supplies it stably and efficiently to various subsystems and external users. It stores, regulates, and distributes power, ensuring a balanced supply and demand and stable output.

[0058] For example, a thermal power station provides relatively stable and controllable electrical energy output. Its working principle is primarily to burn fossil fuels such as coal and natural gas, converting chemical energy into thermal energy, which in turn generates steam that drives a turbine, which in turn drives a generator to generate electricity.

[0059] For example, a carbon reuse system includes two key components: carbon capture and carbon utilization, or subsystems. For example, a carbon capture system uses absorption, adsorption, or membrane separation methods to separate and capture carbon dioxide from flue gas emissions from thermal power plants. This captured carbon dioxide is then transported to a carbon utilization system, which converts it into a feedstock that can be used in coal chemical processes, thereby reusing carbon resources.

[0060] For example, coal chemical systems use coal as a base raw material, combined with resources such as carbon dioxide from carbon reuse systems, to produce energetic solid and liquid products through a series of complex chemical reactions and processing techniques. For example, coal gasification technology can be used to convert coal into synthesis gas, which can then be further synthesized into energetic liquids such as methanol and gasoline, or coal coking can be used to produce energetic solids such as coke. Some of the energetic solids can be supplied to the steelmaking system, and some of the energetic liquids can also be supplied to the steelmaking system or used for other purposes. Coal chemical systems also typically produce energetic gases.

[0061] For example, the steelmaking system receives energetic solids and liquids from the coal chemical system and feeds them into the steelmaking process as energy and raw materials. These energetic substances provide the necessary heat and chemical reduction capacity for blast furnace ironmaking and converter steelmaking, while also being deeply coupled with the material and energy flows of the steelmaking process.

[0062] This design connects the natural energy conversion system, power supply system, thermal power plants, carbon reuse system, coal chemical system, and steel manufacturing system through material, energy, and information flows, achieving a high degree of coordinated operation. The natural energy conversion system and thermal power plants complement each other in terms of power supply. Natural energy prioritizes power generation during daytime, when there is wind, or when water resources are abundant, reducing reliance on thermal power generation. During periods of insufficient natural energy supply, thermal power plants provide timely power replenishment to ensure stable power supply for the entire system. This coordinated power supply model not only improves energy supply reliability, but also optimizes the energy structure, reduces the risk of reliance on a single energy source, and facilitates the achievement of carbon neutrality.

[0063] In terms of carbon recycling, the carbon dioxide produced by thermal power plants is effectively captured and converted into raw materials for the coal chemical system through a carbon reuse system, realizing the transformation of carbon from an emission source to a production raw material. The energetic substances produced by the coal chemical system provide energy and material support for the steel manufacturing system, and some by-products generated during the steel manufacturing process can be recycled or used as inputs to other systems, forming a relatively closed carbon cycle chain. This multi-energy complementary carbon neutrality model breaks the traditional situation of independent operation and self-governance of various industries. Through cross-industry material and energy coupling, it realizes the efficient utilization and circulation of carbon in the entire system, minimizes carbon emissions, and thus ensures carbon neutrality.

[0064] Such a design, for example, on the one hand, the industry multi-energy complementary carbon neutrality system can incorporate renewable energy on a large scale into high-energy-consuming industries, such as steel, chemicals, etc., and accelerate the low-carbon transformation of these traditional high-carbon industries. Through the coordination of the natural energy conversion system and the power supply system, a stable and clean power supply is provided for high-energy-consuming industries, reducing the direct combustion of fossil energy, thereby reducing carbon emission intensity. On the other hand, the carbon neutrality system constructed by the industry multi-energy complementary carbon neutrality system has strong scalability and adaptability. It is not limited to small industrial parks, but can be extended to larger industrial areas and even the entire industrial chain. It only needs to be combined with transfer equipment or transmission pipelines. This helps to achieve deep integration and optimization of energy and industrial systems, and promote the extension and upgrading of the industrial chain of typical high-energy-consuming industries. On the other hand, the industry multi-energy complementary carbon neutrality system is conducive to reducing the use of fossil energy, increasing the utilization ratio of renewable energy, and improving overall energy utilization efficiency. In the steel manufacturing system, the rational use of energetic solids and energetic liquids can improve energy conversion efficiency and reduce energy waste. At the same time, through carbon capture and utilization technology, the carbon dioxide that was originally directly emitted can be converted into valuable resources, further improving the utilization efficiency of carbon resources. On the other hand, the multi-energy complementary carbon neutrality system of the industry can promote the low-carbonization of high-energy-consuming industries on the emission side, promote material and energy complementarity and collaborative innovation among industries, and achieve optimized integration and intensive development of high-energy-consuming industries. For example, the deep coupling of the steel manufacturing system and the coal chemical system not only reduces the carbon emissions of the steel industry, but also provides a new source of raw materials and market space for the coal chemical industry, forming a mutually beneficial and win-win development pattern, thereby providing strong technical support and practical paths for achieving the goal of carbon neutrality.

[0065] In each embodiment, the natural energy conversion system and the thermal power station respectively output electrical energy to the power supply system, and the power supply system is used to supply electrical energy; in some embodiments, the natural energy conversion system includes a water energy conversion system, a photothermal conversion system, a photovoltaic conversion system, a wind power conversion system and a biomass conversion system, and the water energy conversion system, the photothermal conversion system, the photovoltaic conversion system, the wind power conversion system and the biomass conversion system are respectively used for water energy conversion, photothermal conversion, photovoltaic conversion, wind power conversion and biomass conversion. Such a design can make full use of various natural energies and convert them into electrical energy, thereby reducing the overall carbon emissions of the multi-energy complementary carbon neutrality system of the industry and ultimately achieving the effect of carbon neutrality. Moreover, by complementing high-energy-consuming industries such as thermal power stations, coal chemical systems, and steel manufacturing systems with the natural energy conversion system, a path is provided for extending the industrial chain of typical high-energy-consuming industries and realizing a multi-energy complementary system under the goal of carbon neutrality. That is, under the goal of carbon neutrality, a path is provided for extending the industrial chain of typical energy-consuming industries such as thermal power, coal chemical industry, building materials, steel, transportation, and construction with traditional fossil energy and new energy and realizing multi-energy complementarity.

[0066] Natural energy conversion systems may generate heat while converting natural energy into electricity. In some embodiments, the multi-energy complementary carbon-neutral industry system also includes a heat supply system; the natural energy conversion system also outputs heat to the heat supply system. In some embodiments, the multi-energy complementary industry system also includes a low-carbon building; the electricity supply system is used to supply electricity to the low-carbon building, and the heat supply system is used to supply heat to the low-carbon building. Low-carbon buildings can also be simply referred to as buildings and may incorporate low-carbon technologies. In some embodiments, the multi-energy complementary industry system also includes transportation equipment, and the electricity supply system is used to supply electricity to the transportation equipment. The heat supply system, as a crucial component of the system, is closely connected to the natural energy conversion system and receives the heat output. For example, solar thermal utilization devices and geothermal energy extraction equipment in the natural energy conversion system convert renewable energy sources such as solar energy and geothermal energy into heat energy, which is then transported to the heat supply system via efficient heat transfer media and a pipeline network. The thermal energy supply system is equipped with intelligent thermal energy storage devices that can store excess heat when it is in excess, converting it into electricity, potential energy, or chemical energy. This energy can then be released when demand peaks, ensuring a stable supply of heat. This heat can not only be used for heating and drying processes in industrial production but can also be used in conjunction with the electrical energy supply system to provide thermal energy for subsequent low-carbon buildings and transportation equipment.

[0067] In the above-mentioned embodiment, low-carbon buildings, as one of the terminal energy consumption units in the multi-energy complementary carbon neutrality system for the industry, are deeply integrated with the power supply system and the heat supply system. The power supply system, through an intelligent distribution network, precisely supplies and distributes electricity based on the power demand characteristics of the low-carbon building, such as the power consumption patterns of lighting, air conditioning, and office equipment. Simultaneously, the heat supply system efficiently transmits heat energy to various heat-consuming areas within the low-carbon building, such as heating and hot water supply, through centralized heating pipelines or distributed heat pump equipment. This integrated model enables low-carbon buildings to achieve synergistic optimization of electricity and heat in energy utilization. On the one hand, through the intelligent energy management system, low-carbon buildings can monitor and analyze their own power and heat consumption in real time, and automatically adjust the operating status of energy devices based on indoor environmental parameters and user behavior patterns. For example, they can reduce the power of air conditioning and lighting in areas with less human activity, thus reducing unnecessary energy waste. On the other hand, compared with traditional buildings, low-carbon buildings fully utilize the renewable electricity and heat energy provided by the system, significantly reducing their reliance on fossil energy, lowering carbon emissions intensity, and achieving the goal of low-carbon building operation.

[0068] As an example, consider new energy electric vehicles (EVs). As another end-user energy consumer within the industry's multi-energy complementary carbon-neutral system, transportation equipment primarily relies on the power supply system. This system provides clean, efficient electricity to electric transportation equipment through charging stations, battery swap stations, or wireless charging infrastructure. These electric transportation equipment, including electric trucks, electric forklifts, and electric buses, are widely used in raw material transportation, product distribution, and commuting. Furthermore, transportation equipment closely collaborates with other subsystems within the industry's multi-energy complementary carbon-neutral system. For example, in the transportation of raw materials and products between the steel manufacturing system and the coal chemical industry, electric transportation equipment not only reduces carbon emissions from traditional fuel-powered transportation vehicles but also, through close integration with production plans, optimizes transportation routes and scheduling, improving the overall logistics and energy efficiency of the system, further enhancing the overall effectiveness of the industry's multi-energy complementary carbon-neutral system. With such a design, the industry's multi-energy complementary carbon neutrality system achieves optimal allocation and coordinated operation of energy in different forms and links through the improvement of the thermal energy supply system, energy integration of low-carbon buildings, and expansion of electrical energy application in transportation equipment, providing a more comprehensive solution for the low-carbon transformation of high-energy-consuming industries. It has strongly promoted carbon emission reduction and energy efficiency improvement in the entire process of energy production, transmission, and consumption in various industries, especially high-energy-consuming industries such as thermal power stations, coal chemical systems, and steel manufacturing systems, enabling the industry's multi-energy complementary carbon neutrality system to achieve the goal of carbon neutrality.

[0069] In some embodiments, the industry multi-energy complementary carbon neutrality system also includes an energy storage system, and the electric energy supply system is used to supply electric energy to the energy storage system. Exemplarily, the electric energy supply system includes an electric energy supply device and an electric energy conversion device, the electric energy supply device is used to supply electric energy, and the electric energy conversion device is used to electrolyze water during the low electricity consumption period, and output hydrogen and oxygen to the coal chemical system and the steel manufacturing system respectively; exemplarily, the electric energy conversion device is respectively arranged next to the coal chemical system and the steel manufacturing system to supply hydrogen and oxygen nearby. As an example, when necessary, the electric energy supply device also realizes electric energy storage through the energy storage system. Such a design is conducive to coping with the conversion of natural energy with high uncertainty such as wind energy, solving the problem of difficulty in storing electric energy, and is particularly suitable for multi-energy complementary applications in the industry. During peak electricity consumption periods, it can provide power to low-carbon buildings, transportation equipment, coal chemical systems, and steel manufacturing systems. During low electricity consumption periods, it can electrolyze water to output hydrogen and oxygen, which are resources that can be stored. In conjunction with an embodiment with an energy storage system, it can also reduce the use of the energy storage system, further saving resources, which is conducive to achieving a more ideal multi-energy complementary carbon neutral system in the industry.

[0070] The following further illustrates an example of an electric energy supply system having an electric energy supply device and an electric energy conversion device. The electric energy supply device, as the core of the system's electric energy transmission and distribution, is responsible for receiving electric energy input from the natural energy conversion system and the thermal power station. As an example, during operation, the electric energy supply device monitors and analyzes the characteristics of electric energy from two different sources in real time, such as voltage, frequency, phase and other parameters, and achieves seamless access and integration of electric energy through power electronics technology and smart grid control strategies. As an example, when the electric energy input of the natural energy conversion system fluctuates due to factors such as weather, the electric energy supply device can quickly adjust and reasonably distribute the electric energy output of the thermal power station to ensure the stability and continuity of the electric energy supply of the entire system. As an example, the electric energy supply device also performs accurate electric energy distribution based on the electric energy needs of various power-consuming systems and external users, and achieves efficient transmission of electric energy through analysis and prediction of different load characteristics and optimized calculation of power transmission line losses.

[0071] In this embodiment, the electric energy conversion device plays a unique role during the low-peak period of electricity consumption. At night or during periods of low industrial production activities, the multi-energy complementary carbon neutral system of the industry may experience a significant drop in demand for electricity. In order to avoid the waste of electricity, the electric energy conversion device starts the water electrolysis process. This process uses electric energy to decompose water into hydrogen and oxygen, realizing the efficient conversion of electric energy into chemical energy. The produced hydrogen is transported to the coal chemical system and participates in subsequent chemical reactions as an important chemical raw material, such as replacing part of the traditional fossil energy raw materials in the processes of synthetic ammonia and methanol synthesis, thereby reducing the use of fossil energy and reducing carbon emissions. The oxygen is sent to the steel manufacturing system and used as a combustion-supporting gas in the steel smelting process to improve combustion efficiency and reduce carbon emissions caused by incomplete combustion. It also helps to improve the quality and performance of steel products. This process not only achieves the efficient use of electric energy, but also further optimizes the carbon emission structure of the entire system through the coupling of material flows, reflecting the key supporting role of the electric energy supply system in achieving the carbon neutrality goal.

[0072] In this embodiment, a close collaborative relationship is formed between the electric energy supply system and the natural energy conversion system, the thermal power station, the coal chemical system and the steel manufacturing system. In terms of energy supply, the electric energy supply system works in coordination with the natural energy conversion system and the thermal power station, and dynamically adjusts the output power of each power generation unit according to the real-time supply of natural energy and the overall power demand of the system, thereby achieving an optimized combination of renewable energy and traditional energy. In terms of material flow, the coupling with the coal chemical system and the steel manufacturing system enables the by-products generated during the electric energy conversion process to be fully utilized, forming a cross-system material circulation chain and improving the comprehensive utilization rate of resources. This collaborative mechanism not only enhances the ability of the entire system to cope with energy fluctuations and changes in demand, but also minimizes carbon emissions through the coordinated optimization of multiple systems, and promotes the development of high-energy-consuming industries in a low-carbon, efficient and sustainable direction.

[0073] In some embodiments, the multi-energy complementary carbon neutrality system for industries further includes a fossil energy supply system for providing the fossil energy to the thermal power station; wherein the fossil energy includes natural gas, oil and coal. In various embodiments, the thermal power station further outputs carbon dioxide to the coal chemical system through the carbon reuse system; in various embodiments, the coal chemical system outputs energy-containing solids and energy-containing liquids to the steel manufacturing system; in some embodiments, the multi-energy complementary carbon neutrality system for industries further includes a building materials manufacturing system; the thermal power station, the coal chemical system and the steel manufacturing system respectively output solid products to the building materials manufacturing system. Exemplarily, the coal chemical system further outputs oil, gas and hydrocarbon alcohol chemical products to the building materials manufacturing system; and or, the coal chemical system further outputs coke oven gas to the building materials manufacturing system. For example, the thermal power station outputs fly ash, slag, and desulfurized gypsum as solid products to the building materials manufacturing system, the coal chemical system outputs coke and / or energetic waste as solid products to the building materials manufacturing system, and the steel manufacturing system outputs slag and / or steel as solid products to the building materials manufacturing system. This design enables the reuse of solid products, which, on the one hand, facilitates the full utilization of resources and, on the other hand, reduces waste emissions, thereby saving resources, especially energy, for waste treatment. This helps improve energy efficiency, reduce carbon dioxide emissions, and increase the proportion of new energy used in high-energy-consuming industries, further accelerating the low-carbon transition of high-energy-consuming industries on the energy side.

[0074] In various embodiments, the carbon reuse system includes a carbon capture system and a carbon utilization system. The carbon capture system is used to capture carbon dioxide and deliver it to the carbon utilization system. The carbon utilization system is used to receive carbon dioxide from the thermal power plant and the carbon capture system and deliver it to the coal chemical system. In some embodiments, the carbon capture system is located within the thermal power plant, adjacent to the thermal power plant, or adjacent to the coal chemical system. In some embodiments, the carbon reuse system also includes a carbon sequestration system, and the carbon utilization system is used to deliver excess carbon dioxide to the carbon sequestration system. This design not only reduces carbon dioxide emissions by introducing new energy sources to high-energy-consuming industries and recycling materials and energy between industries, but also reduces carbon dioxide emissions through carbon dioxide capture, storage, and technology. The captured carbon dioxide can also be used as raw materials for high-energy-consuming industries. Furthermore, the carbon reuse system as a carbon capture, utilization, and storage (CCUS) system fully utilizes the carbon dioxide generated by thermal power plants, thereby collaborating with the natural energy conversion system to achieve carbon emission reduction and carbon neutrality.

[0075] In some embodiments, an industry multi-energy complementary carbon neutral system 100 is as follows: Figure 1As shown, it includes a natural energy conversion system 110, an electric energy supply system 120, a thermal power station 130, a carbon reuse system 140, a coal chemical system 150 and a steel manufacturing system 160; the natural energy conversion system 110 and the thermal power station 130 are respectively connected to the electric energy supply system 120 to enable the natural energy conversion system 110 and the thermal power station 130 to output electric energy to the electric energy supply system 120 respectively, and the electric energy supply system 120 is used to supply electric energy; the thermal power station 130 is also connected to the coal chemical system 150 through the carbon reuse system 140 to enable the thermal power station 130 to also output carbon dioxide to the The coal chemical system 150 is connected to the steel manufacturing system 160 to enable the coal chemical system 150 to output energetic solids and energetic liquids to the steel manufacturing system 160. The carbon reuse system 140 includes a carbon capture system 141 and a carbon utilization system 142. The carbon capture system 141 is connected to the carbon utilization system 142 to transmit captured carbon dioxide to the carbon utilization system 142. The carbon utilization system 142 is connected to the thermal power station 130 and the coal chemical system 150, respectively, to enable the carbon utilization system 142 to receive carbon dioxide from the thermal power station 130 and the carbon capture system 141 and output it to the coal chemical system 150. It is understood that in this embodiment, the connection can be achieved by pipeline connection, circuit connection, or transportation connection, depending on the actual situation. The embodiments of this application are not particularly limited in this regard. It is sufficient to achieve the corresponding transmission function. The same applies hereinafter and will not be repeated. Such a design is conducive to incorporating renewable energy into high-energy-consuming industries and accelerating their low-carbon transformation. Specifically, the electricity and heat energy generated by renewable energy can be directly used as the energy required by these high-energy-consuming industries; the products or by-products of renewable energy can be used as raw materials required by high-energy-consuming industries.

[0076] In some embodiments, an industry multi-energy complementary carbon neutral system 100 is as follows: Figure 2 As shown, Figure 1The difference from the illustrated embodiment is that the industry multi-energy complementary carbon neutrality system 100 also includes a fossil energy supply system 111, an energy storage system 121, a building materials manufacturing system 170, a thermal energy supply system 180, a low-carbon building 190, and transportation equipment 191. The thermal power station 130, the coal chemical system 150, and the steel manufacturing system 160 are respectively connected to the building materials manufacturing system 170 to enable the thermal power station 130, the coal chemical system 150, and the steel manufacturing system 160 to output solid products to the building materials manufacturing system 170. The natural energy conversion system 110 is connected to the thermal energy supply system 180 to output heat energy to the thermal energy supply system 180; the thermal energy supply system 180 is connected to the low-carbon building 190 to supply heat energy to the low-carbon building 190. The electric energy supply system 120 is connected to the low-carbon building 190 to supply electric energy to the low-carbon building 190. The power supply system 120 is also connected to the transport equipment 191 to supply power to the transport equipment 191. The power supply system 120 is also connected to the energy storage system 121 to supply power to the energy storage system 121. The fossil energy supply system 111 is connected to the thermal power station 130 to provide the fossil energy to the thermal power station 130. Figure 3 In this embodiment, the carbon reuse system 140 also includes a carbon sequestration system 143. The carbon utilization system 142 is also connected to the carbon sequestration system 143 for outputting excess carbon dioxide to the carbon sequestration system 143. This design is conducive to reducing the proportion of fossil energy used, improving energy utilization efficiency, reducing carbon dioxide emissions, and increasing the proportion of energy utilization of new energy in high-energy-consuming industries, thereby accelerating the low-carbon transformation of high-energy-consuming industries on the energy side. It also promotes the extension of the industrial chain of typical high-energy-consuming industries, establishes material and energy complementarity between industries, promotes the optimized integration and intensive development of high-energy-consuming industries, and achieves low-carbonization of high-energy-consuming industries on the emission side.

[0077] In some embodiments, the application of the multi-energy complementary carbon neutral system in the industry is as follows: Figure 4 As shown, the entirety can be considered an industrial park or development zone. For example, a demonstration industrial park could be equipped with a multi-energy complementary carbon neutrality system for the industry, including a natural energy conversion system, an electric energy supply system, a thermal power station, a carbon reuse system, a coal chemical system, and a steel manufacturing system. The following examples of end users primarily use transportation equipment and low-carbon buildings.

[0078] Renewable energy generated through solar energy, including hydropower, solar thermal energy, photovoltaics, wind power, and biomass energy, is used to generate electricity and heat for end users. Heat, broadly defined, includes both heating and cooling. Electricity generated from natural energy and electricity generated from fossil fuels through thermal power plants are used for power generation. Due to the relative instability of natural energy generation compared to thermal power, it can be used in conjunction with energy storage. Water electrolysis can also be used to produce oxygen and hydrogen for direct use or for storage, preventing unnecessary power curtailment.

[0079] In this embodiment, the coal chemical industry, steel manufacturing, and building materials manufacturing are examples of high-energy-consuming industries. The oxygen and hydrogen produced by water electrolysis are supplied to the coal chemical industry and / or steel manufacturing systems, and the waste heat from these systems can be used to generate electricity. The oil, gas, hydrocarbon alcohol products, coke, coke oven gas, and / or energetic waste from the coal chemical system can be supplied to the steel manufacturing system and / or building materials manufacturing system, or they can be used independently.

[0080] Blast furnace gas, converter gas, etc. from the steel manufacturing system can be supplied to the coal chemical system, and slag, steel, etc. from the steel manufacturing system can be supplied as raw materials to the building materials manufacturing system. The products of the building materials manufacturing system include but are not limited to cement, gypsum, glass, etc.

[0081] The fossil energy of the fossil energy supply system, including natural gas, oil, coal, etc., can also be supplied to the coal chemical system as raw material fuel. The fly ash, slag, and desulfurization gypsum produced by thermal power plants can be supplied to the building materials manufacturing system, such as the production of cement, gypsum, glass, etc.; the carbon dioxide produced by thermal power plants can be directly used for oil extraction. Considering the production environment and transportation, the carbon dioxide produced by thermal power plants can also be captured, utilized and stored through the CCUS system, and then supplied to the coal chemical system, steel manufacturing system and or building materials manufacturing system.

[0082] With this design, hydrogen produced by electrolysis of water from new energy sources can be used in hydrogen fuel cell vehicles, reducing carbon dioxide emissions in the transportation sector, and photovoltaic power generation can be directly used as energy required for construction; hydrogen and oxygen produced by electrolysis of water from renewable energy sources can be used as raw materials for coal chemical products such as hydrocarbons and alcohols; in the steel smelting process, hydrogen can also replace coal as a blast furnace reducing agent, which can reduce carbon dioxide emissions; coke and coke oven gas produced by the coal chemical industry can be directly used as raw materials and energy in the steel smelting process; slag produced by the steel industry and thermal power industry can be directly used as raw materials for the production of building materials such as cement; glass in building materials can be used in the production of photovoltaic panels, etc.; carbon dioxide produced by high-energy-consuming industries can be used for oil extraction after capture and storage, and can also be used as raw materials required for the production of coal chemical products such as hydrocarbons and alcohols. The remaining embodiments are similar and will not be repeated.

[0083] It should be noted that other embodiments of the present application also include an industry multi-energy complementary carbon neutrality system that can be implemented by combining the technical features in the above embodiments.

[0084] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0085] The above-described embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present application, all of which fall within the scope of protection of the present application. Therefore, the scope of patent protection for the present application shall be determined by the appended claims.

Claims

1. An industry multi-energy complementary carbon neutrality system, characterized by: Including natural energy conversion systems, power supply systems, thermal power plants, carbon reuse systems, coal chemical systems and steel manufacturing systems; The natural energy conversion system and the thermal power station respectively output electric energy to the electric energy supply system, and the electric energy supply system is used to supply electric energy; The thermal power station also outputs carbon dioxide to the coal chemical system through the carbon reuse system; The coal chemical system outputs energetic solids and energetic liquids to the steel manufacturing system; The carbon reuse system includes a carbon capture system and a carbon utilization system. The carbon capture system is used to capture carbon dioxide and transmit it to the carbon utilization system; The carbon utilization system is used to receive carbon dioxide from the thermal power station and the carbon capture system, and output it to the coal chemical system.

2. The multi-energy complementary carbon neutrality system for industries according to claim 1 is characterized in that: The carbon reuse system further includes a carbon sequestration system, and the carbon utilization system is further configured to output excess carbon dioxide to the carbon sequestration system.

3. The multi-energy complementary carbon neutrality system according to claim 1 is characterized in that: The carbon capture system is arranged inside the thermal power station, or adjacent to the thermal power station, or adjacent to the coal chemical system.

4. The multi-energy complementary carbon neutrality system for industries according to claim 1 is characterized in that: The multi-energy complementary carbon neutral system for the industry also includes a building materials manufacturing system; The thermal power station, the coal chemical system and the steel manufacturing system respectively output solid products to the building materials manufacturing system.

5. The multi-energy complementary carbon neutrality system for industries according to claim 1 is characterized in that: The industry's multi-energy complementary carbon neutral system also includes a heat energy supply system; The natural energy conversion system also outputs thermal energy to the thermal energy supply system.

6. The multi-energy complementary carbon neutrality system for industries according to claim 5 is characterized in that: The natural energy conversion system includes a water energy conversion system, a photothermal conversion system, a photovoltaic conversion system, a wind power conversion system and a biomass conversion system. The water energy conversion system, the photothermal conversion system, the photovoltaic conversion system, the wind power conversion system and the biomass conversion system are respectively used for water energy conversion, photothermal conversion, photovoltaic conversion, wind power conversion and biomass conversion.

7. The multi-energy complementary carbon neutrality system for industries according to claim 5 is characterized in that: The multi-energy complementary carbon neutral system for the industry also includes low-carbon buildings; The electric energy supply system is used to supply electric energy to the low-carbon building, and the thermal energy supply system is used to supply thermal energy to the low-carbon building.

8. The multi-energy complementary carbon neutrality system for industries according to claim 7 is characterized in that: The industry multi-energy complementary carbon neutrality system also includes transportation equipment, and the power supply system is used to supply power to the transportation equipment.

9. The multi-energy complementary carbon neutrality system for industries according to claim 1 is characterized in that: The industry multi-energy complementary carbon neutrality system also includes an energy storage system, and the power supply system is used to supply power to the energy storage system.

10. The multi-energy complementary carbon neutrality system for industries according to any one of claims 1 to 9, characterized in that: The industry multi-energy complementary carbon neutrality system further includes a fossil energy supply system for providing the fossil energy to the thermal power station; Among them, the fossil energy includes natural gas, oil and coal.

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