Carbon dioxide sealing method and device, storage medium and electronic device

Abstract

The invention discloses a carbon dioxide sealing method and device, a storage medium, an electronic device and a computer program product. The method comprises the steps that carbon dioxide to be sealed is collected; the carbon dioxide is pretreated, so that the pressure and the temperature of the carbon dioxide respectively reach corresponding preset values; the pretreated carbon dioxide is introduced into a heat exchanger to absorb heat of the carbon dioxide, and the absorbed heat is used for supplying heat to the target object; and the carbon dioxide with the heat absorbed is sealed and stored. Heat energy generated by carbon dioxide is recycled through the heat exchanger and used for heating, the heating cost and dependence on fossil fuel are remarkably reduced, originally wasted heat energy is converted into valuable service, the overall utilization efficiency of energy is improved, and sustainable development is promoted.

Description

Technical Field

[0001] The present application relates to the field of carbon dioxide processing, and more specifically, to a method and device for storing carbon dioxide, a storage medium, an electronic device, and a computer program product. Background Art

[0002] With people's increasing concern about climate change, carbon sequestration technology has gradually emerged. Carbon sequestration is the process of capturing and storing carbon dioxide from the atmosphere. Its purpose is to reduce greenhouse gas emissions, thereby protecting the environment and responding to global climate change. At present, Carbon Capture, Utilization and Storage (CCUS) technology has become one of the key means to reduce greenhouse gas emissions. In the process of CCUS technology, the capture, compression, and final geological storage of carbon dioxide are the three core steps.

[0003] However, the entire CCUS process involves a large amount of energy consumption, especially in the compression stage of carbon dioxide, because it needs to be compressed from atmospheric pressure to a high-pressure state suitable for geological storage, such as 50 bar or higher, which generates a large amount of heat. How to use this heat is a problem that needs to be solved at present. Summary of the invention

[0004] Embodiments of the present application provide a method and apparatus for storing carbon dioxide, a storage medium, an electronic device, and a computer program product.

[0005] According to one aspect of an embodiment of the present application, a method for storing carbon dioxide is provided, the method comprising: collecting carbon dioxide to be stored; pretreating the carbon dioxide so that the pressure and temperature of the carbon dioxide reach corresponding preset values; passing the pretreated carbon dioxide into a heat exchanger to absorb the heat of the carbon dioxide, wherein the absorbed heat is used to provide heat for a target object; and storing the carbon dioxide after the heat is absorbed.

[0006] In an exemplary embodiment, the pretreated carbon dioxide is passed into a heat exchanger to absorb the heat of the carbon dioxide, including: constructing a heat exchanger, the heat exchanger containing a heat exchange medium; passing the pretreated carbon dioxide into the heat exchanger to exchange heat between the carbon dioxide and the heat exchange medium to absorb the heat of the carbon dioxide.

[0007] In an exemplary embodiment, after the pretreated carbon dioxide is introduced into the heat exchanger to exchange heat between the carbon dioxide and the heat exchange medium, the method further includes: constructing a heating system; and transporting the heat exchange medium to the heating system so that the heating system provides the heat of the heat exchange medium to the target object.

[0008] In an exemplary embodiment, preprocessing carbon dioxide to make the pressure and temperature of the carbon dioxide reach corresponding preset values respectively includes: introducing the carbon dioxide into a compressor to compress the carbon dioxide to a preset pressure; introducing the carbon dioxide at the preset pressure into a cooling device to cool the carbon dioxide at the preset pressure to a preset temperature.

[0009] In an exemplary embodiment, the method further includes: obtaining the heat absorption condition of a heat exchanger; determining the heat exchange efficiency of the heat exchanger according to the heat absorption condition of the heat exchanger, the preset pressure, and the preset temperature; and adjusting the working parameters of the heat exchanger when the heat exchange efficiency is lower than a preset threshold value so that the heat exchange efficiency reaches the preset threshold value.

[0010] In an exemplary embodiment, sequestering the carbon dioxide after heat is absorbed includes: establishing an injection well at a preset sequestration site; and injecting the carbon dioxide into the injection well for sequestration.

[0011] Another aspect of the present application provides a carbon dioxide sequestration device, which includes: a collection module for collecting carbon dioxide to be sequestered; a preprocessing module for preprocessing the carbon dioxide to make the pressure and temperature of the carbon dioxide reach corresponding preset values respectively; a heat exchange module for introducing the preprocessed carbon dioxide into a heat exchanger to absorb the heat of the carbon dioxide, wherein the absorbed heat is used to supply heat to a target object; and a sequestration module for sequestering the carbon dioxide after heat is absorbed.

[0012] According to yet another aspect of the embodiments of the present application, there is also provided a computer-readable storage medium, in which a computer program is stored, and the computer program is configured to execute the above-mentioned carbon dioxide sequestration method when running.

[0013] According to yet another aspect of the embodiments of the present application, there is also provided an electronic device, including a memory, a processor, and a computer program stored on the memory and executable on the processor, wherein the above-mentioned processor executes the above-mentioned carbon dioxide sequestration method through the computer program.

[0014] According to yet another aspect of the embodiments of the present application, there is also provided a computer program product, including a computer program, and the steps of the methods described in the various embodiments of the present application are implemented when the computer program is executed by a processor.

[0015] The above carbon dioxide sequestration method first collects carbon dioxide, thereby reducing the emission of carbon dioxide into the atmosphere and thus reducing the greenhouse effect. Then, the carbon dioxide is pre-treated. By adjusting the carbon dioxide to appropriate pressure and temperature, its stability and safety during geological sequestration can be ensured, and the risk of gas leakage can be reduced. Then, the heat energy generated by the carbon dioxide is recovered through a heat exchanger and used for heating, significantly reducing the heating cost and dependence on fossil fuels, converting the originally wasted heat energy into valuable services, improving the overall energy utilization efficiency, and promoting sustainable development. After the heat energy utilization of the carbon dioxide is completed, the carbon dioxide is sequestered. Brief Description of the Drawings

[0016] The accompanying drawings herein are incorporated into and constitute a part of this specification, showing embodiments consistent with the present application and, together with the specification, are used to explain the principles of the present application.

[0017] To more clearly illustrate the technical solutions in the embodiments of the present application or in the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, for those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0018] Figure 1 is the hardware structure block diagram of the carbon dioxide sequestration method according to the embodiment of the present application;

[0019] Figure 2 is the flowchart of a carbon dioxide sequestration method according to an embodiment of the present application;

[0020] Figure 3 is the second flowchart of a carbon dioxide sequestration method according to an embodiment of the present application;

[0021] Figure 4 is the third flowchart of a carbon dioxide sequestration method according to an embodiment of the present application;

[0022] Figure 5 is the fourth flowchart of a carbon dioxide sequestration method according to an embodiment of the present application;

[0023] Figure 6 is the fifth flowchart of a carbon dioxide sequestration method according to an embodiment of the present application;

[0024] Figure 7 is the sixth flowchart of a carbon dioxide sequestration method according to an embodiment of the present application;

[0025] Figure 8 is the structure block diagram of a carbon dioxide sequestration device according to an embodiment of the present application. Detailed Embodiments

[0026] To enable those skilled in the art to better understand the solution of this application, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are only a part of the embodiments of this application, rather than all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application.

[0027] It should be noted that the terms "first", "second", etc. in the specification and claims of this application and the above-mentioned accompanying drawings are used to distinguish similar objects, and do not necessarily need to be used to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so that the embodiments of this application described here can be implemented in an order other than those illustrated or described here. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or are inherent to these processes, methods, products, or devices.

[0028] The method embodiments provided in the embodiments of this application can be executed on a computer terminal or a similar computing device. Taking running on a computer terminal as an example, Figure 1 is a hardware structure block diagram of a computer terminal for the carbon dioxide sequestration method of the embodiments of this application. As Figure 1 shown, the computer terminal may include one or more ( Figure 1 only one is shown in Figure 1 a processor 102 (the processor 102 may include, but is not limited to, a microprocessor (abbreviated as MPU) or a programmable logic device (abbreviated as PLD)) and a memory 104 for storing data. In an exemplary embodiment, the above computer terminal may further include a transmission device 106 for communication functions and an input / output device 108. Those of ordinary skill in the art can understand that Figure 1 the structure shown is only schematic and does not limit the structure of the above computer terminal. For example, the computer terminal may further include more or fewer components than Figure 1 shown in Figure 1 or have different configurations with the same functions as

[0029] The memory 104 can be used to store computer programs, such as software programs and modules of application software, such as the computer program corresponding to the carbon dioxide sequestration method in the embodiments of the present application. The processor 102 executes various functional applications and data processing by running the computer programs stored in the memory 104, that is, the above-mentioned method is implemented. The memory 104 may include a high-speed random access memory, and may also include a non-volatile memory, such as one or more magnetic storage devices, flash memories, or other non-volatile solid-state memories. In some instances, the memory 104 may further include a memory remotely disposed relative to the processor 102, and these remote memories can be connected to the computer terminal through a network. Examples of the above-mentioned network include but are not limited to the Internet, intranet, local area network, mobile communication network, and combinations thereof.

[0030] The transmission device 106 is used to receive or send data via a network. Specific examples of the above-mentioned network may include a wireless network provided by a communication provider of a computer terminal. In one instance, the transmission device 106 includes a network adapter (Network Interface Controller, abbreviated as NIC), which can be connected to other network devices through a base station so as to communicate with the Internet. In one instance, the transmission device 106 may be a Radio Frequency (RF) module, which is used to communicate with the Internet wirelessly.

[0031] In this embodiment, a carbon dioxide sequestration method is provided. Figure 2 It is a flowchart of an optional carbon dioxide sequestration method according to the embodiments of the present application. The process includes the following steps S200-S220:

[0032] Step S200, collect the carbon dioxide to be sequestered.

[0033] Specifically, carbon dioxide can be efficiently collected from various industrial sources, and these industrial sources may include but are not limited to thermal power plants, refineries, chemical plants, cement production facilities, etc.

[0034] Exemplarily, technologies such as chemical capture, physical adsorption, membrane separation, or direct air capture can be adopted, and the most suitable capture scheme can be selected according to the characteristics of the industrial source. Design and establish a collection network covering a wide range of emission sources, including appropriate pipelines, buffer tanks, and preliminary purification devices, to ensure the stability and safety of carbon dioxide during collection and transmission.

[0035] Step S210, preprocess the carbon dioxide so that the pressure and temperature of the carbon dioxide reach the corresponding preset values respectively.

[0036] Specifically, the purpose of the pretreatment step is to adjust the collected carbon dioxide to pressures and temperatures suitable for heat exchange and sequestration. This process includes compression, cooling, and possibly further purification.

[0037] Exemplarily, a multi-stage compressor is used to compress carbon dioxide to a preset pressure (such as 50 - 100 bar), while the temperature is reduced to a preset value (such as 40 degrees Celsius) through an efficient cooling system (water-cooled or air-cooled) to ensure the efficiency of subsequent heat exchange processes. Technologies such as filtration and adsorption are used to further purify carbon dioxide, removing impurities that may affect the sequestration effect, such as hydrogen sulfide and water vapor.

[0038] Step S220: Pass the pretreated carbon dioxide into a heat exchanger to absorb the heat of the carbon dioxide.

[0039] Among them, the absorbed heat is used to supply heat to the target object.

[0040] Specifically, after the carbon dioxide pretreatment is completed, its heat will be transferred to the target object, such as the circulating medium of the heating system, through the heat exchanger to achieve effective recovery of thermal energy.

[0041] Exemplarily, a highly efficient and corrosion-resistant heat exchanger, such as a plate heat exchanger, is selected, and the chemical properties of carbon dioxide and the heat to be transferred are considered during the design. A circulation system is established, including a circulation pump, insulated pipes, and a heat distributor, to deliver the medium (such as hot water or hot oil) that has absorbed the heat of carbon dioxide to the target areas in need of heating, such as residential areas, commercial buildings, or industrial facilities.

[0042] Step S230: Sequester the carbon dioxide after its heat has been absorbed.

[0043] Specifically, after the thermal energy recovery is completed, the carbon dioxide is transported to a geological sequestration site for long-term sequestration to prevent it from re-entering the atmosphere and affecting climate change.

[0044] Exemplarily, through geological surveys, suitable sequestration sites are selected, such as depleted oil and gas fields, deep saline aquifers, or underground rock formations, to ensure safety and long-term sequestration capabilities. Sequestration wells and monitoring systems are established at the selected sites, and advanced plugging technologies, such as cement plugging and intelligent valve control, are used to prevent carbon dioxide leakage. A set of monitoring systems for the sequestration process is established to real-time monitor the pressure, temperature, and gas concentration at the sequestration site to ensure the safety and effectiveness of the sequestration process.

[0045] In this embodiment, carbon dioxide is first collected to reduce its emission into the atmosphere, thereby reducing the greenhouse effect. Then, the carbon dioxide is pre-treated. By adjusting the carbon dioxide to appropriate pressure and temperature, its stability and safety during geological sequestration can be ensured, and the risk of gas leakage can be reduced. Then, the heat energy generated by the carbon dioxide is recovered through a heat exchanger for heating, significantly reducing the heating cost and dependence on fossil fuels. The originally wasted heat energy is converted into valuable services, improving the overall energy utilization efficiency and promoting sustainable development. After the heat energy utilization of the carbon dioxide is completed, the carbon dioxide is sequestered.

[0046] In one embodiment, as Figure 3 shown, in step S220, the pre-treated carbon dioxide is introduced into the heat exchanger to absorb the heat of the carbon dioxide. It includes steps S300 - S310:

[0047] Step S300, construct a heat exchanger.

[0048] Among them, the heat exchanger contains a heat transfer medium.

[0049] Specifically, a heat exchanger is constructed to achieve efficient heat transfer. This heat exchanger is designed to accommodate and circulate a heat transfer medium, such as water, oil, or a special heat exchange fluid, in order to absorb heat from the compressed and pre-treated carbon dioxide.

[0050] Exemplarily, select a heat exchanger structure that is efficient, corrosion-resistant, and capable of withstanding high pressures, such as a plate heat exchanger or a shell-and-tube heat exchanger. A plate heat exchanger may be a better choice due to its compact structure, high heat transfer efficiency, and ease of cleaning and maintenance. During design, it is necessary to ensure that the material (such as stainless steel) can resist the chemical erosion of carbon dioxide and at the same time have good thermal conductivity. Select a suitable heat transfer medium, such as hot water, because water is a common, inexpensive, and efficient heat energy carrier. Construct a medium circulation system, including water pumps, pipes, valves, and a control system, to ensure that the medium can pass through the heat exchanger at an appropriate speed and pressure for sufficient heat exchange with the carbon dioxide. Set up a control system to monitor the operating status of the heat exchanger, such as the temperature and flow rate of the heat transfer medium, as well as the pressure and temperature of the carbon dioxide. By automatically adjusting the rotation speed of the water pump, the opening of the valve, and the working status of the cooling system, optimize the heat exchange efficiency to ensure that the temperature of the carbon dioxide can stably drop to the preset value.

[0051] Step S310, introduce the pre-treated carbon dioxide into the heat exchanger so that the carbon dioxide exchanges heat with the heat transfer medium to absorb the heat of the carbon dioxide.

[0052] Specifically, after carbon dioxide is compressed to the pressure required for sequestration and undergoes preliminary cooling, it is introduced into a heat exchanger, where it comes into contact with a heat transfer medium and heat exchange occurs, thereby reducing the temperature of the carbon dioxide while also transferring this part of the heat to the heat transfer medium for subsequent heating processes.

[0053] Exemplarily, the pre-treated carbon dioxide is transported to the inlet of the heat exchanger through a pipeline. When designing the pipeline system, it is necessary to consider reducing heat energy and pressure losses to ensure that the carbon dioxide still maintains a sufficient energy state when entering the heat exchanger. Inside the heat exchanger, flow channels or plates are designed to enable the carbon dioxide to come into full contact with the heat transfer medium, and heat exchange occurs through heat conduction. To improve the heat exchange efficiency, the flow rate of the carbon dioxide and the circulation rate of the heat transfer medium need to be precisely controlled. After the heat exchange is completed, the temperature of the heat transfer medium rises, and this part of the heat energy can be transferred to the heating system to heat hot water or air for heating residential areas or industrial facilities, realizing the reuse of energy.

[0054] In this embodiment, the design optimization of the heat exchanger and the efficient operation of the medium circulation system can maximize the heat recovered from carbon dioxide and reduce energy waste. By converting the heat in carbon dioxide into the heat energy required for heating, the dependence on traditional fossil fuels is reduced, which helps to reduce greenhouse gas emissions and achieve the goal of energy conservation and emission reduction. The heat exchange ensures that the heat in the carbon dioxide can be fully captured and transferred to the heat transfer medium, improving the utilization efficiency of heat energy. By using the recovered heat for heating, the demand for additional energy is reduced, the overall operating cost is lowered, and at the same time, the consumption of fossil fuels is reduced, and the carbon footprint is reduced. The close integration of CCUS and the heating system facilitates sustainable and environmentally friendly energy utilization.

[0055] In one embodiment, as Figure 4 shown, in step S310, after the pre-treated carbon dioxide is introduced into the heat exchanger to enable heat exchange between the carbon dioxide and the heat transfer medium to absorb the heat of the carbon dioxide, the method further includes steps S400 - S410:

[0056] Step S400, constructing a heating system.

[0057] Specifically, constructing a heating system is the key to converting the heat in the heat transfer medium into heating energy. The system needs to be designed to effectively distribute and utilize the heat energy from the heat exchanger to ensure that the target objects (such as residential buildings, commercial buildings or industrial facilities) can obtain stable heating.

[0058] Exemplarily, a set of underground or above-ground pipeline systems is designed to transport the heat exchange medium (such as hot water) that has absorbed the heat of carbon dioxide from the heat exchanger to the target area. The pipeline should have good heat insulation performance to reduce heat loss during the heat energy transmission process. Install radiators, heat exchangers or geothermal systems in the target area, and release the heat energy from the heat exchange medium through these devices to convert it into the heat required by the target object. The choice of the heat dissipation device depends on the type and specific requirements of the target object. Establish a control system to monitor the operating status of the heating network, including parameters such as temperature, pressure and flow rate. The system can automatically adjust the flow rate and temperature of the heat exchange medium to ensure the stability and efficiency of heating. At the same time, the monitoring system can also collect data to provide a basis for system optimization and maintenance.

[0059] Step S410, transport the heat exchange medium to the heating system so that the heating system provides the heat of the heat exchange medium to the target object.

[0060] Specifically, after the heat exchange medium absorbs heat from the heat exchanger, it needs to be transported to the heating system to achieve the final utilization of heat energy.

[0061] Exemplarily, use a circulation pump to extract the heated heat exchange medium from the heat exchanger and transport it through a preset pipeline network to each heat dissipation device in the heating system. The performance of the circulation pump should match the heating demand to ensure smooth and efficient medium flow. Set heat energy conversion devices at various key points in the heating system, such as heat exchangers or heat distribution stations, to convert the heat in the heat exchange medium into a heating form suitable for the target object, such as hot water heating or hot air heating. Set a user-side interface at the inlet of the heating system of the target object (such as a residence, office building), which can accurately control and utilize the heat of the heat exchange medium to ensure the comfort and efficiency of heating.

[0062] In this embodiment, through the designed heat distribution network and efficient heat dissipation devices, the uniformity and continuity of the heating process are ensured, the user comfort is improved, and the risk of heating interruption is reduced. Reduce energy consumption and costs: Utilize the recovered carbon dioxide heat to reduce the dependence on traditional heating energy sources (such as natural gas, coal), reduce heating costs, and at the same time reduce greenhouse gas emissions to promote sustainable development. The setting of the user-side interface and the heat energy conversion point enables the heating system to adjust the heating amount according to the actual needs of the target object, avoiding the problems of overheating or underheating. By setting different forms of heat energy conversion devices in the heating system, the adaptability of the system to various target objects is enhanced. Whether it is a residence, commercial building or industrial facility, the recovered heat energy can be effectively utilized. Convert the heat energy that was originally wasted during the carbon dioxide sequestration process into heating resources, realizing the recycling and reuse of resources.

[0063] In one embodiment, such as Figure 5As shown, in step S210, the carbon dioxide is pre-treated so that the pressure and temperature of the carbon dioxide reach the corresponding preset values respectively. This includes steps S500 - S510:

[0064] In step S500, the carbon dioxide is introduced into a compressor and compressed to the preset pressure.

[0065] Specifically, compression is a crucial step in CCUS technology. By increasing the pressure of carbon dioxide, it becomes easier to transport and store. The selection of the preset pressure is based on the geological conditions of the storage site and the requirements of the storage technology. Usually, a relatively high pressure level, such as above 50 bar, is required to ensure that carbon dioxide can be effectively stored underground.

[0066] Exemplarily, a suitable compressor type is selected according to the flow rate, compression ratio, and operating environment of carbon dioxide, such as a reciprocating compressor, a centrifugal compressor, or a screw compressor. Each compressor has its advantages and limitations, and factors such as cost, efficiency, and ease of maintenance need to be comprehensively considered. To avoid energy consumption problems and possible equipment damage caused by compressing to high pressure in one step, multistage compression technology is usually adopted. After each stage of compression, there is a cooling and dehumidification process to reduce the energy consumption of the next stage of compression and improve efficiency. A real-time monitoring system is established to monitor the operating status of the compressor, including parameters such as pressure, temperature, and vibration, to ensure that the compression process is carried out under safe and controllable conditions. At the same time, the performance of the compressor is optimized through data analysis.

[0067] In step S510, the carbon dioxide at the preset pressure is introduced into a cooling device and cooled to the preset temperature.

[0068] Specifically, when carbon dioxide is compressed under high pressure, a large amount of heat is released, causing its temperature to rise. To ensure the smooth progress of subsequent storage and utilization processes, it needs to be cooled to the preset temperature through a cooling device. Usually, this temperature is relatively low to facilitate the recovery and utilization of thermal energy.

[0069] Exemplarily, water cooling, air cooling, or heat exchange cooling technology can be adopted. The most suitable cooling method is selected according to the temperature of the compressed carbon dioxide, the target preset temperature, and the on-site resource conditions (such as water source or air flow). System design needs to consider cooling efficiency and energy consumption. This includes, but is not limited to, the selection of coolers, the design of the circulation system of the cooling medium (such as water or air), and the use of thermal insulation materials to reduce heat energy loss during the cooling process. A temperature control system is established to ensure that the compressed carbon dioxide can be cooled to the preset temperature, such as around 40 degrees Celsius. By adjusting the flow rate, temperature, and pressure of the cooling medium, the purpose of precise control is achieved.

[0070] In this embodiment, by compressing carbon dioxide, the carbon dioxide compressed to a preset pressure is more easily sequestered, reducing the sequestration cost and at the same time increasing the storage capacity of the sequestration site. The multi-stage compression and cooling process reduces the energy consumption of a single compression and lowers the operating cost of the entire CCUS system. The real-time monitoring and maintenance mechanism ensures the safety of the compression process and avoids the risk of carbon dioxide leakage caused by equipment failure. The heat energy generated during the compression process is recovered through a cooling device, and this part of the heat can also provide a heat source for the subsequent heating system, reducing energy waste and improving the energy utilization efficiency of the overall system. The carbon dioxide cooled to a preset temperature is more stable during storage, reducing the storage risk caused by excessive temperature, such as the expansion or leakage of a pressure vessel. By cooling the carbon dioxide to an appropriate temperature, conditions are created for subsequent heat exchange and utilization processes, such as heat exchange with a heating medium in a heat exchanger for efficient heat energy utilization.

[0071] In one embodiment, as Figure 6 shown, the method further includes: steps S600 - S620:

[0072] Step S600, obtain the heat absorption situation of the heat exchanger.

[0073] Specifically, in the CCUS system, the heat exchanger is responsible for transferring the heat in the compressed and cooled carbon dioxide to the heat exchange medium. This step involves monitoring the heat transfer situation during the heat exchange process to evaluate the performance of the heat exchanger and the energy utilization efficiency of the entire system.

[0074] Exemplarily, high-precision calorimeters are installed at the inlet and outlet of the heat exchanger to continuously monitor the temperature and flow rate changes of the heat exchange medium entering and leaving the heat exchanger. By calculating the temperature difference and flow rate, the heat absorption situation can be obtained. A data acquisition system is used to collect the data of the calorimeters, and at the same time, the pressure and temperature of the carbon dioxide, as well as the initial and final temperatures of the heat exchange medium, are recorded to provide data support for subsequent analysis. The collected data is transmitted to a central control room or a cloud database for real-time analysis and historical data storage, facilitating subsequent system optimization and fault diagnosis.

[0075] Step S610, determine the heat exchange efficiency of the heat exchanger according to the heat absorption situation of the heat exchanger, the preset pressure, and the preset temperature.

[0076] Specifically, the heat exchange efficiency is a key indicator for evaluating the performance of the heat exchanger, which involves the amount of heat transferred, the flow rate and temperature difference of the heat exchange medium, and the operating conditions of the carbon dioxide (preset pressure and preset temperature). The aim is to analyze and quantify the efficiency of the heat exchanger to facilitate system optimization and fault troubleshooting.

[0077] Exemplarily, according to the data of the calorimeter, combined with the flow rate and temperature difference of the heat exchange medium, the heat exchange efficiency is calculated using the heat exchanger efficiency formula. The formula can be: η = (Qout / Qin) * 100%, where Qout is the heat absorbed by the heat exchange medium and Qin is the heat input by carbon dioxide. The calculated heat exchange efficiency is correlated with the pressure and temperature of carbon dioxide, as well as the initial and final temperatures of the heat exchange medium to find the key factors affecting the heat exchange efficiency. The actual heat exchange efficiency is compared with the designed or preset heat exchange efficiency to evaluate whether the performance of the heat exchanger meets the expectations or whether there is a performance degradation situation.

[0078] Step S620, in the case where the heat exchange efficiency is lower than the preset threshold, adjust the operating parameters of the heat exchanger so that the heat exchange efficiency reaches the preset threshold.

[0079] Specifically, when it is monitored that the heat exchange efficiency of the heat exchanger is lower than the preset minimum threshold, it is necessary to promptly adjust the operating parameters of the heat exchanger to ensure the efficient operation of the entire CCUS system and the maximization of energy recovery.

[0080] Exemplarily, according to the real-time monitoring results of the heat exchange efficiency, the operating parameters of the heat exchanger can be adjusted automatically or manually, such as the flow rate, temperature or pressure of the heat exchange medium, and the cooling efficiency of the heat exchanger. Based on data analysis and control systems, optimize control strategies are developed to predict and adjust parameters through mathematical models and algorithms to improve the heat exchange efficiency and reduce energy consumption. Regularly inspect and maintain the heat exchanger to ensure it is in the best working condition. If the preset threshold cannot be reached through parameter adjustment, it may be necessary to upgrade or replace the heat exchanger to improve its heat exchange efficiency.

[0081] In this embodiment, the operating state of the heat exchanger is monitored in real time, and the heat absorption situation is promptly fed back to provide a basis for system optimization. By collecting and analyzing data, system parameters can be adjusted based on the actual operating conditions to ensure the high efficiency and stability of the heat exchange process. By calculating the heat exchange efficiency, the performance of the heat exchanger can be quantified, providing clear indicators for system maintenance and upgrade. The analysis results can guide the optimization of the design and operating parameters of the heat exchanger, such as adjusting the flow rate or temperature of the heat exchange medium to improve the overall heat exchange efficiency. It is possible to dynamically optimize the operating parameters according to the real-time changes in the heat exchanger efficiency to ensure that the system can maintain high-efficiency operation under fluctuating operating conditions. By ensuring that the heat exchanger is maintained above the preset heat exchange efficiency threshold, the energy recovery rate in the system is maximized, improving the economic and environmental benefits of CCUS technology.

[0082] In one embodiment, as Figure 7 shown, step S230, seal the carbon dioxide after the heat is absorbed.

[0083] Includes: steps S700 - S710:

[0084] Step S700, establish an injection well at a preset storage site.

[0085] Specifically, establishing an injection well at a preset geological storage site is a crucial step in CCUS technology. The injection well is used to safely transport carbon dioxide that has been compressed, cooled, and had its thermal energy recovered to the underground storage layer, ensuring its long-term and stable storage and preventing it from re-entering the atmosphere, thereby reducing greenhouse gas emissions and addressing climate change.

[0086] Exemplarily, during the site selection phase of the storage site, conduct detailed geological surveys and assessments, including indicators such as rock formation structure, permeability, porosity, and sealing properties, to ensure that the storage site can safely and reliably store carbon dioxide. Based on the geological assessment results, design the depth, diameter, and structure of the injection well to ensure that it can withstand the injection of high-pressure gas and also has good sealing performance. Advanced drilling techniques and equipment, such as rotary drilling or directional drilling, are required during construction to accurately reach the storage layer. After the construction of the injection well is completed, install a well casing and a cement plug to prevent carbon dioxide leakage. At the same time, establish a monitoring system, including pressure gauges, thermometers, and fluid detection equipment, to monitor the downhole conditions in real time and ensure the safety and effectiveness of the storage process.

[0087] Step S710, inject carbon dioxide into the injection well for storage.

[0088] Specifically, after the injection well is established and ready, transport the pre-treated carbon dioxide through the injection well to the underground storage layer to complete the storage process.

[0089] Exemplarily, design and establish a high-pressure injection system, including injection pumps, pipelines, valves, and control systems, to ensure that carbon dioxide can be safely injected into the well at a preset pressure and flow rate. Use high-pressure pipelines to transport the cooled carbon dioxide from the treatment center to the inlet of the injection well, and inject the carbon dioxide into the well through the injection pump until it reaches the storage layer. During the injection process, continuously monitor the pressure, temperature, and injection volume of the injection well to ensure that the injection process of carbon dioxide is carried out within the controlled range and avoid damaging the wellbore and the storage layer.

[0090] In this embodiment, through geological assessment and well location design, it is ensured that the storage site has good sealing and stability, effectively preventing carbon dioxide leakage and reducing environmental risks. The well location design takes into account the optimal injection pressure and flow rate, enabling carbon dioxide to be quickly and evenly distributed in the storage layer, thereby improving the storage efficiency and storage capacity. Storing the carbon dioxide after heat energy recovery underground not only reduces energy waste but also avoids environmental emissions of CO2, achieving effective utilization of energy and reduction of environmental pollution. The high-pressure injection technology can increase the storage capacity of the storage layer, enabling more carbon dioxide to be safely stored, which helps to achieve large-scale carbon emission reduction goals.

[0091] Through the description of the above embodiments, those skilled in the art can clearly understand that the method according to the above embodiments can be implemented by means of software plus a necessary general hardware platform. Of course, it can also be implemented by hardware, but in many cases the former is a better implementation method. Based on such an understanding, the technical solution of the present application, in essence, or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) and includes several instructions for causing a terminal device (which can be a mobile phone, computer, server, or network device, etc.) to execute the methods of the various embodiments of the present application.

[0092] In this embodiment, a carbon dioxide storage device is also provided. This carbon dioxide storage device is used to implement the above embodiments and preferred implementation manners, and those that have been described will not be repeated here. As used hereinafter, the term "module" can be a combination of software and / or hardware that can achieve a predetermined function. Although the devices described in the following embodiments are preferably implemented in software, implementation in hardware, or a combination of software and hardware is also possible and contemplated.

[0093] Figure 8 It is a structural block diagram of an optional carbon dioxide storage device according to an embodiment of the present application. As Figure 8 shown, it includes:

[0094] A collection module 801 for collecting carbon dioxide to be stored.

[0095] A pretreatment module 802 for pretreating carbon dioxide so that the pressure and temperature of the carbon dioxide reach corresponding preset values respectively.

[0096] A heat exchange module 803 for passing the pretreated carbon dioxide into a heat exchanger to absorb the heat of the carbon dioxide, wherein the absorbed heat is used to supply heat to a target object.

[0097] A storage module 804 for storing the carbon dioxide after its heat has been absorbed.

[0098] Through the above device, carbon dioxide is first collected, thereby reducing the emission of carbon dioxide into the atmosphere and thus reducing the greenhouse effect. Then, the carbon dioxide is pre-treated. By adjusting the carbon dioxide to an appropriate pressure and temperature, its stability and safety during geological sequestration can be ensured, and the risk of gas leakage can be reduced. Then, the heat energy generated by the carbon dioxide is recovered through a heat exchanger for heating, significantly reducing the heating cost and dependence on fossil fuels, converting the heat energy that would otherwise be wasted into a valuable service, improving the overall energy utilization efficiency, and promoting sustainable development. After the heat energy utilization of the carbon dioxide is completed, the carbon dioxide is sequestered.

[0099] In an exemplary embodiment, the above heat exchange module 803 is further configured to construct a heat exchanger, wherein the heat exchanger contains a heat exchange medium. The pre-treated carbon dioxide is introduced into the heat exchanger so that the carbon dioxide exchanges heat with the heat exchange medium to absorb the heat of the carbon dioxide.

[0100] In an exemplary embodiment, the above device further includes:

[0101] A heat supply construction module for constructing a heat supply system.

[0102] A conveying module for conveying the heat exchange medium to the heat supply system so that the heat supply system provides the heat of the heat exchange medium to the target object.

[0103] In an exemplary embodiment, the pre-treatment module 802 is further configured to introduce the carbon dioxide into a compressor to compress the carbon dioxide to a preset pressure. The carbon dioxide at the preset pressure is introduced into a cooling device to cool the carbon dioxide at the preset pressure to a preset temperature.

[0104] In an exemplary embodiment, the above device further includes:

[0105] A heat monitoring module for obtaining the heat absorption situation of the heat exchanger.

[0106] An efficiency determination module for determining the heat exchange efficiency of the heat exchanger according to the heat absorption situation of the heat exchanger, the preset pressure, and the preset temperature.

[0107] An optimization module for adjusting the working parameters of the heat exchanger when the heat exchange efficiency is lower than a preset threshold so that the heat exchange efficiency reaches the preset threshold.

[0108] In an exemplary embodiment, the sequestration module 804 is further configured to establish an injection well at a preset sequestration location. The carbon dioxide is injected into the injection well for sequestration.

[0109] An embodiment of the present application further provides a storage medium, which includes a stored program, wherein the above program executes the method of any one of the above when running.

[0110] Optionally, in this embodiment, the above storage medium may be set to store program code for performing the following steps:

[0111] S1. Collect the carbon dioxide to be sequestered.

[0112] S2. Pretreat the carbon dioxide so that the pressure and temperature of the carbon dioxide reach corresponding preset values respectively.

[0113] S3. Pass the pretreated carbon dioxide into a heat exchanger to absorb the heat of the carbon dioxide, wherein the absorbed heat is used to supply heat to a target object.

[0114] S4. Sequester the carbon dioxide after its heat has been absorbed.

[0115] An embodiment of the present application also provides an electronic device, including a memory and a processor. A computer program is stored in the memory, and the processor is set to run the computer program to execute the steps in any one of the above method embodiments.

[0116] Optionally, the above electronic device may further include a transmission device and an input / output device, wherein the transmission device is connected to the above processor, and the input / output device is connected to the above processor.

[0117] Optionally, in this embodiment, the above processor may be set to execute the following steps through a computer program:

[0118] S1. Collect the carbon dioxide to be sequestered.

[0119] S2. Pretreat the carbon dioxide so that the pressure and temperature of the carbon dioxide reach corresponding preset values respectively.

[0120] S3. Pass the pretreated carbon dioxide into a heat exchanger to absorb the heat of the carbon dioxide, wherein the absorbed heat is used to supply heat to a target object.

[0121] S4. Sequester the carbon dioxide after its heat has been absorbed.

[0122] Optionally, in this embodiment, the above storage medium may include but is not limited to: various media that can store program code such as USB flash drives, read-only memories (ROM for short), random access memories (RAM for short), mobile hard disks, magnetic disks, or optical discs.

[0123] Embodiments of the present application also provide a computer program product, including a non-volatile computer-readable storage medium. The non-volatile computer-readable storage medium stores the computer program product. When the computer program is executed by a processor, it implements the steps of the methods in various embodiments of the present application.

[0124] Optionally, in this embodiment, the above computer program can be set to implement the following steps when executed by a processor:

[0125] S1, Collect the carbon dioxide to be sealed.

[0126] S2, Pretreat the carbon dioxide so that the pressure and temperature of the carbon dioxide reach the corresponding preset values respectively.

[0127] S3, Pass the pretreated carbon dioxide into a heat exchanger to absorb the heat of the carbon dioxide, wherein the absorbed heat is used to supply heat to the target object.

[0128] S4, Seal the carbon dioxide after its heat has been absorbed.

[0129] Optionally, specific examples in this embodiment can refer to the examples described in the above embodiments and optional implementation manners, and will not be elaborated herein.

[0130] Obviously, those skilled in the art should understand that the above modules or steps of the present application can be implemented by a general-purpose computing device. They can be concentrated on a single computing device or distributed on a network composed of multiple computing devices. Optionally, they can be implemented by program codes executable by the computing device, so that they can be stored in a storage device and executed by the computing device. And in some cases, the steps shown or described can be executed in a different order than here, or they can be separately made into individual integrated circuit modules, or multiple modules or steps among them can be made into a single integrated circuit module to implement. In this way, the present application is not limited to any specific combination of hardware and software.

[0131] The above are only the preferred embodiments of the present application and are not used to limit the present application. For those skilled in the art, the present application can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the principle of the present application shall be included in the protection scope of the present application.

Claims

1. A method for carbon dioxide sequestration, characterized in that, The method comprises: Collecting CO2 for storage; Pre-treating the carbon dioxide so that the pressure and temperature of the carbon dioxide reach corresponding preset values respectively; Passing the pretreated carbon dioxide into a heat exchanger to absorb heat from the carbon dioxide, wherein the absorbed heat is used to provide heat for a target object; The carbon dioxide after the heat is absorbed is sealed.

2. The method for sequestering carbon dioxide according to claim 1, wherein The step of passing the pretreated carbon dioxide into a heat exchanger to absorb the heat of the carbon dioxide comprises: constructing a heat exchanger, wherein the heat exchanger contains a heat exchange medium; The pretreated carbon dioxide is introduced into the heat exchanger so that the carbon dioxide exchanges heat with the heat exchange medium to absorb the heat of the carbon dioxide.

3. The carbon dioxide sequestration method according to claim 2, wherein After the pretreated carbon dioxide is introduced into the heat exchanger so that the carbon dioxide exchanges heat with the heat exchange medium, the method further includes: constructing a heating system; The heat exchange medium is transported to the heat supply system, so that the heat supply system provides the heat of the heat exchange medium to the target object.

4. The method for sequestering carbon dioxide according to claim 2, wherein The pre-processing of the carbon dioxide so that the pressure and temperature of the carbon dioxide reach corresponding preset values respectively includes: Passing the carbon dioxide into a compressor to compress the carbon dioxide to a preset pressure; The carbon dioxide at a preset pressure is introduced into the cooling device, and the carbon dioxide at the preset pressure is cooled to a preset temperature.

5. The carbon dioxide sequestration method according to claim 4, characterized in that, The method further comprises: Obtaining the amount of heat absorbed by the heat exchanger; Determining the heat exchange efficiency of the heat exchanger according to the amount of heat absorbed by the heat exchanger, the preset pressure, and the preset temperature; When the heat exchange efficiency is lower than a preset threshold, the operating parameters of the heat exchanger are adjusted to make the heat exchange efficiency reach the preset threshold.

6. The method for sequestering carbon dioxide according to any one of claims 1-5, characterized in that, The step of storing the carbon dioxide after the heat is absorbed comprises: Establish injection wells at the intended storage location; The carbon dioxide is injected into the injection well for storage.

7. A carbon dioxide sequestration device, characterized in that, The device comprises: A collection module, used to collect carbon dioxide to be stored; A pre-processing module, used for pre-processing the carbon dioxide so that the pressure and temperature of the carbon dioxide reach corresponding preset values respectively; A heat exchange module, used for passing the pretreated carbon dioxide into a heat exchanger to absorb the heat of the carbon dioxide, wherein the absorbed heat is used to provide heat for a target object; The storage module is used to store the carbon dioxide after the heat is absorbed.

8. A computer-readable storage medium, characterized in that, The computer-readable storage medium includes a stored program, wherein the program executes the method according to any one of claims 1 to 6 when executed.

9. An electronic device, comprising a memory and a processor, characterized in that, A computer program is stored in the memory, and the processor is configured to execute the method according to any one of claims 1 to 6 through the computer program.

10. A computer program product, comprising a computer program, characterized in that, When the computer program is executed by a processor, the method according to any one of claims 1 to 6 is implemented.

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