Integrated farming-greenhouse air carbon capture system and method

Abstract

An integrated farming-greenhouse air carbon capture system and method. The system comprises a livestock and poultry farm, an air carbon capture device, a CO2 storage tank and a planting greenhouse, wherein the livestock and poultry farm is connected to the air carbon capture device by means of a first duct, the air carbon capture device is connected to the CO2 storage tank by means of a second duct, and the CO2 storage tank is connected to the planting greenhouse by means of a third duct.

Description

A breeding-greenhouse integrated air carbon capture system and method

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to Chinese patent application No. 2023115850440 filed in China on November 24, 2023, the entire contents of which are incorporated herein by reference. Technical Field

[0003] The present disclosure relates to the field of agricultural application technology, and in particular to an integrated breeding-greenhouse air carbon capture system and method. Background Art

[0004] Livestock and poultry farms have relatively conservative ventilation measures, and animals release a certain amount of carbon dioxide when they breathe. However, when the carbon dioxide content is too high, the animals will become listless, gain weight slowly, and have a high incidence of diseases. Once the carbon dioxide concentration in livestock and poultry farms exceeds 1000PPM, it will lead to immunosuppression. The carbon dioxide concentration in livestock and poultry farms is generally required not to exceed 1500PPM, but the actual level is around 2200PPM, and around 3200PPM at night.

[0005] In greenhouses, in order to maintain a certain temperature, a large amount of ventilation is not possible, but crop photosynthesis requires a large amount of carbon dioxide. When the carbon dioxide concentration in the atmosphere increases from 250Ppm to 400PPm, the photosynthetic efficiency will increase by 20%. Specifically, when the carbon dioxide concentration doubles, the yield of three-carbon crops such as rice, wheat, and beans can increase by 10% to 50%, and the yield of four-carbon crops such as corn, sorghum, and sugarcane can increase by about 10%. The appropriate concentration of carbon dioxide gas required for vegetable growth and development is 800 to 1200 ml / m 3 Within the appropriate concentration range, the higher the concentration of carbon dioxide gas and the longer the high concentration lasts, the more conducive it is to the growth and development of vegetables.

[0006] In related technologies, the method of reacting ammonium bicarbonate with industrial sulfuric acid to release carbon dioxide is currently commonly used, but this method is highly dangerous and easily pollutes the land; or solid carbon dioxide granular fertilizer is used, but this method takes about 7 days to generate carbon dioxide and cannot achieve real-time adjustment of the carbon dioxide content in the greenhouse.

[0007] Summary of the Invention

[0008] The embodiments of the present disclosure provide a farming-greenhouse integrated air carbon capture system and method to at least solve the problem in the related art that carbon dioxide acquisition is highly dangerous or untimely.

[0009] The first embodiment of the present disclosure proposes an integrated breeding-greenhouse air carbon capture system, including: a livestock and poultry farm, an air carbon capture device, a CO2 storage tank and a greenhouse, wherein: the livestock and poultry farm is connected to the air carbon capture device through a first pipeline, the air carbon capture device is connected to the CO2 storage tank through a second pipeline, and the CO2 storage tank is connected to the greenhouse through a third pipeline; wherein the livestock and poultry farm is provided with a first air suction port, and a first air suction device is configured at the first air suction port, and the first air suction device is used to extract the gas generated in the livestock and poultry farm, and the gas contains CO2; the air carbon capture device is provided with a gas inlet valve, a clean air outlet valve and a CO2 outlet valve, and the air carbon capture device has a built-in CO2 adsorption material, and the livestock and poultry extracted by the air pump The gas from the farm is transmitted through the first pipeline and enters the air carbon capture device through the gas inlet valve. The CO2 adsorption material in the air carbon capture device adsorbs CO2 on the air. After the CO2 adsorption material adsorbs CO2 on the gas, the adsorbed CO2 is transmitted to the second pipeline through the CO2 outlet valve to be transmitted to the CO2 storage tank through the second pipeline. The remaining gas after CO2 adsorption in the air carbon capture device is discharged through the net air outlet valve; the CO2 storage tank is used to store the CO2 adsorbed from the gas extracted from the livestock and poultry farm by the air carbon capture device; the greenhouse planting shed is provided with a second exhaust port, and a second exhaust device is configured at the second exhaust port. The second exhaust device is used to extract the CO2 stored in the CO2 storage tank into the greenhouse planting shed.

[0010] According to one embodiment of the present disclosure, a solar device is installed on the top of a livestock and poultry farm, and the solar device is used to provide the energy required to heat the CO2 adsorption material in the air carbon capture device.

[0011] According to one embodiment of the present disclosure, the speed at which the first exhaust device extracts gas from the livestock and poultry farm is determined by the current CO2 concentration of the livestock and poultry farm, the standard CO2 concentration of the livestock and poultry farm, and the actual livestock and poultry breeding volume of the livestock and poultry farm.

[0012] According to one embodiment of the present disclosure, the speed at which the second exhaust device extracts CO2 from the CO2 storage tank is determined by the current CO2 concentration of the greenhouse planting shed, the standard CO2 concentration of the greenhouse planting shed and the volume of the greenhouse planting shed.

[0013] The second aspect of the present disclosure proposes an integrated breeding-greenhouse air carbon capture method, including: receiving gas extracted from a livestock and poultry farm by a first exhaust device through a first pipeline, the gas containing CO2; closing the gas inlet valve, the clean air outlet valve and the CO2 outlet valve corresponding to the air carbon capture device in sequence, heating the CO2 adsorption material built into the air carbon capture device to adsorb CO2 from the air, and after the CO2 adsorption material adsorbs CO2 from the gas, opening the CO2 outlet valve to allow the adsorbed CO2 to be transmitted to the CO2 storage tank through a second pipeline, and the CO2 in the CO2 storage tank is used to be extracted by the second exhaust device into the greenhouse planting shed; opening the clean air outlet valve to allow the remaining gas after adsorption by the CO2 adsorption material to be discharged through the clean air outlet valve.

[0014] According to one embodiment of the present disclosure, the breeding-greenhouse integrated air carbon capture method further includes: transmitting the remaining gas discharged through the clean air outlet valve back to the livestock and poultry breeding farm.

[0015] According to one embodiment of the present disclosure, before the gas generated in the livestock and poultry farm is extracted based on the first exhaust device, it also includes: obtaining a target CO2 capture rate based on the current CO2 concentration of the livestock and poultry farm and the standard CO2 concentration of the livestock and poultry farm corresponding to the livestock and poultry farm; and selecting the CO2 adsorption material in the air carbon capture device based on the target CO2 capture rate.

[0016] According to one embodiment of the present disclosure, a CO2 adsorbent material in an air carbon capture device is selected based on a target CO2 capture rate, including: presetting a mapping relationship between candidate CO2 adsorbent materials and candidate CO2 capture rates; and based on a calculated target CO2 capture rate, querying the mapping relationship to determine the CO2 adsorbent material from a plurality of candidate CO2 adsorbent materials.

[0017] The technical solution provided by the embodiments of the present disclosure brings at least the following beneficial effects: the breeding-greenhouse integrated air carbon capture system proposed in the embodiments of the present disclosure captures CO2 in livestock and poultry farms based on an air carbon capture device, and transports the captured CO2 to greenhouse planting sheds for direct use through pipeline transportation and storage tank transportation, thereby realizing the resource utilization of CO2, effectively reducing the cost required for CO2 refining, and playing a role in comprehensively scheduling the CO2 content in different regions; compared with directly capturing air with a low CO2 content from the air, the embodiments of the present disclosure directly collect gas with a high CO2 content from livestock and poultry farms. The solution of the embodiments of the present disclosure has low energy consumption and high desorption efficiency, and cools the gas containing high CO2 content after adsorption, avoiding the problem of affecting the growth of crops in the greenhouse.

[0018] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and / or additional aspects and advantages of the present disclosure will become apparent and readily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0020] FIG1 is a schematic diagram of an integrated farming and greenhouse air carbon capture system according to an embodiment of the present disclosure.

[0021] FIG2 is a schematic diagram showing the connection between an air carbon capture device and a livestock and poultry farm according to an embodiment of the present disclosure.

[0022] FIG3 is a schematic structural diagram of an air carbon capture device according to an embodiment of the present disclosure.

[0023] FIG4 is a schematic diagram of an embodiment of an integrated farming-greenhouse air carbon capture method according to the present disclosure. DETAILED DESCRIPTION

[0024] The following describes in detail embodiments of the present disclosure, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present disclosure, and should not be construed as limiting the present disclosure.

[0025] Figure 1 is a schematic diagram of an integrated farming and greenhouse air carbon capture system according to an embodiment of the first aspect of the present disclosure. As shown in Figure 1 , the integrated farming and greenhouse air carbon capture system includes a livestock and poultry farm, an air carbon capture device, a CO2 storage tank, and a greenhouse. Each location or device is described in detail below:

[0026] Among them, the livestock and poultry farm is connected to the air carbon capture device through a first pipeline, the air carbon capture device is connected to the CO2 storage tank through a second pipeline, and the CO2 storage tank is connected to the greenhouse planting shed through a third pipeline.

[0027] Figure 2 is a schematic diagram illustrating the connection between an air carbon capture device and a livestock and poultry farm, as shown in an embodiment of the present disclosure. As shown in Figure 2, a first air extraction port for collecting air with a high CO2 content is provided above the ground on each floor of the farm. A first air extraction device (e.g., an air pump) is provided to extract the air with a high CO2 content into the air carbon capture device. After the air carbon capture device absorbs the CO2, considering the pressure inside the livestock and poultry farm, in the embodiment of the present disclosure, the air with a low CO2 content is transported back to the livestock and poultry farm.

[0028] FIG3 is a schematic diagram of the structure of an air carbon capture device shown in an embodiment of the present disclosure. As shown in FIG3, the air carbon capture device is provided with a gas inlet valve (valve 1), a clean air outlet valve (valve 2), and a CO2 outlet valve (valve 3). The air carbon capture device has a built-in CO2 adsorption material. The gas from the livestock and poultry farm extracted by the first exhaust device is transmitted through the first pipeline and then enters the air carbon capture device through the gas inlet valve. The air directly contacts the granular CO2 adsorption material in the air carbon capture device. The CO2 adsorption material of the air carbon capture device adsorbs CO2 from the air. After the CO2 adsorption material adsorbs CO2 from the gas, the adsorbed CO2 is transmitted to the second pipeline through the CO2 outlet valve and then transmitted to the CO2 storage tank through the second pipeline. After the CO2 adsorption in the air carbon capture device, the remaining gas is discharged into the livestock and poultry farm through the clean air outlet valve. In the embodiment of the present disclosure, the CO2 adsorption material is made of renewable material. After the CO2 adsorption is completed, the CO2 adsorption material is regenerated by changing the temperature. The regenerated adsorption material is recycled for the next CO2 capture.

[0029] In addition, since the "adsorption-desorption" process of direct air carbon capture is not a continuous process, the captured CO2 can be stored in a CO2 storage tank to cool and buffer the gas. The CO2 storage tank is used to store and cool the CO2 adsorbed from the gas extracted from the livestock and poultry farm by the air carbon capture device. The cooled CO2 at room temperature can be directly used in subsequent greenhouse planting sheds.

[0030] In addition, a second air extraction port is provided above the greenhouse, and a second air extraction device (such as a fan) is configured at the second air extraction port. The second air extraction device is used to extract the CO2 stored in the CO2 storage tank into the greenhouse, so that the CO2 content in the enclosed space meets the growth needs of the plants. Since the photosynthesis rate of plants is affected not only by the CO2 concentration but also by the light conditions, CO2 can be supplemented when the light conditions are sufficient to reach the standard concentration, and the CO2 supplementation can be stopped when the light conditions weaken.

[0031] In some embodiments, since plant photosynthesis is greatly affected by lighting conditions, the laws of natural sunlight conditions are utilized. In the embodiments of the present disclosure, a solar energy device is installed on the top of the livestock and poultry farm. The solar energy device is used to provide the energy required to heat the CO2 adsorption material in the air carbon capture device. It does not need to rely on other energy sources, reduces dependence on traditional energy, and avoids additional carbon emissions. It can effectively start and stop synchronously with the plants in the greenhouse, and is clean and environmentally friendly.

[0032] In some embodiments, before the first exhaust device extracts the gas in the livestock and poultry farm, it is necessary to determine the speed at which the first exhaust device extracts the gas in the livestock and poultry farm. In the embodiment of the present disclosure, the speed at which the first exhaust device extracts the gas in the livestock and poultry farm is determined by the current CO2 concentration of the livestock and poultry farm, the standard CO2 concentration of the livestock and poultry farm, and the actual livestock and poultry breeding volume of the livestock and poultry farm.

[0033] Specifically, obtain the CO required by the livestock and poultry farm at the current moment 2需削减质量 , and according to CO 2需削减质量 Adjust the speed at which the first exhaust device extracts gas from the livestock and poultry farm, wherein:

[0034] CO 2需削减质量 =S 养殖场体积 *(C1 当前浓度 -C1 标准浓度 )

[0035] In the above formula, S 养殖场体积 Refers to the actual livestock and poultry breeding volume of livestock and poultry farms; C1 当前浓度 Refers to the current CO2 concentration in livestock and poultry farms before CO2 is captured, in PPM; C1 标准浓度 Refers to the standard CO2 concentration in the enclosed space of livestock and poultry farms in accordance with breeding standards, with the unit being PPM.

[0036] In addition, CO can be obtained based on factors such as the breeding species and the animal's day and night respiratory rate. 2需削减质量 upper and lower limits.

[0037] In some embodiments, before the second exhaust device extracts the CO2 in the CO2 storage tank, it is necessary to determine the speed at which the second exhaust device extracts the CO2 in the CO2 storage tank. In the embodiment of the present disclosure, the speed at which the second exhaust device extracts the CO2 in the CO2 storage tank is determined by the current CO2 concentration of the greenhouse planting shed, the standard CO2 concentration of the greenhouse planting shed and the volume of the greenhouse planting shed.

[0038] Specifically, obtain the CO required by the greenhouse at the current moment 2需补充质量 , and according to CO 2需补充质量 Adjust the speed at which the second extraction device extracts CO2 from the CO2 storage tank, where:

[0039] CO 2需补充质量 =S 温室大棚体积 *(C2 标准浓度 -C2 当前浓度 )

[0040] S 温室大棚体积 Refers to the volume of greenhouse planting shed; C2 标准浓度 Refers to the standard CO2 concentration of indoor greenhouses, in PPM; C2 当前浓度Refers to the current CO2 concentration in the greenhouse, in PPM.

[0041] In addition, CO2 can be obtained based on factors such as the planting variety and the day and night photosynthesis rate of the plant. 2需补充质量 upper and lower limits.

[0042] The integrated breeding-greenhouse air carbon capture system proposed in the embodiment of the present disclosure captures CO2 in livestock and poultry farms based on an air carbon capture device, and transports the captured CO2 to greenhouse planting sheds for direct use through pipeline transportation and storage tank transportation, thereby realizing the resource utilization of CO2, effectively reducing the cost required for CO2 refining, and playing a role in comprehensively scheduling the CO2 content in different regions; compared with directly capturing air with a low CO2 content from the air, the embodiment of the present disclosure directly collects gas with a high CO2 content from livestock and poultry farms. The solution of the embodiment of the present disclosure has low energy consumption and high desorption efficiency, and cools the gas containing high CO2 content after adsorption, avoiding the problem of affecting the growth of crops in the greenhouse.

[0043] Based on the above-mentioned integrated aquaculture-greenhouse air carbon capture system, Figure 4 is a schematic diagram of an implementation method of an integrated aquaculture-greenhouse air carbon capture method proposed in the second aspect of the present disclosure. The executing body is an air carbon capture device. As shown in Figure 4, the integrated aquaculture-greenhouse air carbon capture method specifically includes the following steps S401 to S403.

[0044] S401, receiving gas extracted from a livestock and poultry farm by a first gas extraction device through a first pipeline, wherein the gas contains CO2.

[0045] A first air extraction port for collecting air with a higher CO2 content is provided above the ground of each floor of the farm, and is equipped with a first air extraction device (such as an air pump). The first air extraction device is used to extract air with a higher CO2 content into an air carbon capture device, and the air carbon capture device receives the gas extracted from the livestock and poultry farm by the first air extraction device through a first pipeline, and the gas contains CO2.

[0046] S402, close the gas inlet valve, clean air outlet valve and CO2 outlet valve corresponding to the air carbon capture device in sequence, heat the CO2 adsorption material built into the air carbon capture device to adsorb CO2 from the air, and after the CO2 adsorption material adsorbs CO2 from the gas, open the CO2 outlet valve to allow the adsorbed CO2 to be transmitted to the CO2 storage tank through the second pipeline, and the CO2 in the CO2 storage tank is used to be extracted by the second exhaust device into the greenhouse planting shed.

[0047] After the air carbon capture device obtains a sufficient amount of gas extracted from the livestock and poultry farm, the gas inlet valve, clean air outlet valve and CO2 outlet valve corresponding to the air carbon capture device are closed in sequence, and the CO2 adsorption material built into the air carbon capture device is heated to adsorb CO2 from the air. After the CO2 adsorption material adsorbs CO2 from the gas, the CO2 outlet valve is opened to allow the adsorbed CO2 to be transmitted to the CO2 storage tank through the second pipeline. The CO2 in the CO2 storage tank is used to be extracted by the second exhaust device into the greenhouse planting shed.

[0048] Among them, the selection of CO2 adsorption materials in the air carbon capture device is particularly important. In the embodiment of the present disclosure, when selecting the type of CO2 adsorption material, the target CO2 capture rate is first obtained based on the current CO2 concentration of the livestock and poultry farm and the standard CO2 concentration of the livestock and poultry farm corresponding to the livestock and poultry farm. Among them:

[0049] CO 2捕集率 =(C1 当前浓度 -C1 标准浓度 ) / C1 当前浓度

[0050] In the above formula, CO 2捕集率 Refers to the target CO2 capture rate; C1 当前浓度 Refers to the current CO2 concentration in livestock and poultry farms before CO2 is captured, in PPM; C1 标准浓度 Refers to the standard CO2 concentration in the enclosed space of livestock and poultry farms in accordance with breeding standards, with the unit being PPM.

[0051] After determining the target CO2 capture rate, a CO2 adsorbent material within the air carbon capture device is selected based on the target CO2 capture rate. Specifically, in the disclosed embodiments, a mapping relationship between candidate CO2 adsorbent materials and candidate CO2 capture rates can be pre-set. Based on the target CO2 capture rate calculated above, the mapping relationship is queried to determine the CO2 adsorbent material from the plurality of candidate CO2 adsorbent materials.

[0052] S403, opening the clean air outlet valve to allow the remaining gas after being adsorbed by the CO2 adsorption material to be discharged through the clean air outlet valve.

[0053] In some embodiments, after the CO 2 adsorption is completed, the net air outlet valve is opened to allow the remaining gas after being adsorbed by the CO 2 adsorption material to be discharged into the atmosphere through the net air outlet valve.

[0054] In some embodiments, after the CO 2 adsorption is completed, the clean air outlet valve is opened to allow the remaining gas after being adsorbed by the CO 2 adsorption material to be transmitted back to the livestock and poultry farm.

[0055] The embodiment of the present disclosure captures CO2 in livestock and poultry farms based on an air carbon capture device, and transports the captured CO2 to greenhouses for direct use through pipeline transportation and storage tank transportation, thereby realizing the resource utilization of CO2, effectively reducing the cost required for CO2 refining, and playing a role in comprehensively scheduling the CO2 content in different regions; compared with directly capturing air with a low CO2 content from the air, the embodiment of the present disclosure directly collects gas with a high CO2 content from livestock and poultry farms. The solution of the embodiment of the present disclosure has low energy consumption and high desorption efficiency, and cools the gas containing a high CO2 content after adsorption, avoiding the problem of affecting the growth of crops in the greenhouse.

[0056] In the description of the present disclosure, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to the present disclosure.

[0057] 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 one or more of the features. Throughout the present disclosure, "plurality" means two or more, unless otherwise specifically defined.

[0058] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present disclosure. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification and features of different embodiments or examples, unless they are mutually inconsistent.

[0059] Although the embodiments of the present disclosure have been shown and described above, it is understood that the above embodiments are illustrative and are not to be construed as limitations on the present disclosure. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present disclosure.

Claims

1. A breeding-greenhouse integrated air carbon capture system, comprising a livestock and poultry farm, an air carbon capture device, a CO2 storage tank and a greenhouse planting shed, wherein: The livestock and poultry farm is connected to the air carbon capture device through a first pipeline, the air carbon capture device is connected to the CO2 storage tank through a second pipeline, and the CO2 storage tank is connected to the greenhouse planting shed through a third pipeline; Wherein, the livestock and poultry farm is provided with a first gas extraction port, and a first gas extraction device is arranged at the first gas extraction port, and the first gas extraction device is used to extract the gas generated in the livestock and poultry farm, and the gas contains CO2; The air carbon capture device is provided with a gas inlet valve, a clean air outlet valve and a CO2 outlet valve. The air carbon capture device has a built-in CO2 adsorption material. The gas from the livestock and poultry farm extracted by the vacuum pump is transmitted through the first pipeline and then enters the air carbon capture device through the gas inlet valve. The CO2 adsorption material of the air carbon capture device adsorbs CO2 from the air. After the CO2 adsorption material adsorbs CO2 from the gas, the adsorbed CO2 is transmitted to the second pipeline through the CO2 outlet valve to be transmitted to the CO2 storage tank through the second pipeline. The remaining gas after CO2 adsorption in the air carbon capture device is discharged through the clean air outlet valve. The CO2 storage tank is used to store and cool the CO2 adsorbed by the air carbon capture device from the gas extracted from the livestock and poultry farm; The greenhouse planting shed is provided with a second air exhaust port, and a second air exhaust device is configured at the second air exhaust port, and the second air exhaust device is used to extract the CO2 stored in the CO2 storage tank into the greenhouse planting shed.

2. The breeding-greenhouse integrated air carbon capture system according to claim 1, wherein a solar energy device is installed on the top of the livestock and poultry farm, and the solar energy device is used to provide the energy required to heat the CO2 adsorption material in the air carbon capture device.

3. The breeding-greenhouse integrated air carbon capture system according to claim 1 or 2, wherein the speed at which the first exhaust device extracts the gas in the livestock and poultry farm is determined by the current CO2 concentration of the livestock and poultry farm, the standard CO2 concentration of the livestock and poultry farm and the actual livestock and poultry breeding volume of the livestock and poultry farm.

4. The breeding-greenhouse integrated air carbon capture system according to any one of claims 1 to 3, wherein the speed at which the second exhaust device extracts CO2 from the CO2 storage tank is determined by the current CO2 concentration of the greenhouse planting shed, the standard CO2 concentration of the greenhouse planting shed and the volume of the greenhouse planting shed.

5. A method for carbon capture from air in an integrated aquaculture-greenhouse system, applied to the integrated aquaculture-greenhouse system as claimed in any one of claims 1 to 4, comprising: Receiving gas extracted from a livestock and poultry farm by a first gas extraction device through a first pipeline, wherein the gas contains CO2; The gas inlet valve, the clean air outlet valve and the CO2 outlet valve corresponding to the air carbon capture device are closed in sequence, the CO2 adsorption material built into the air carbon capture device is heated to adsorb CO2 from the air, and after the CO2 adsorption material adsorbs CO2 from the gas, the CO2 outlet valve is opened to allow the adsorbed CO2 to be transmitted to the CO2 storage tank via the second pipeline, and the CO2 in the CO2 storage tank is used to be extracted by the second exhaust device into the greenhouse planting shed; The clean air outlet valve is opened to allow the remaining gas after being adsorbed by the CO 2 adsorption material to be discharged through the clean air outlet valve.

6. The method for capturing carbon from air in an integrated farming and greenhouse system according to claim 5, wherein the method further comprises: The remaining gas discharged through the clean air outlet valve is transmitted back to the livestock and poultry farm.

7. The breeding-greenhouse integrated air carbon capture method according to claim 5 or 6, wherein before the first exhaust device extracts the gas generated in the livestock and poultry farm, it also includes: Obtaining a target CO2 capture rate according to the current CO2 concentration of the livestock and poultry farm corresponding to the livestock and poultry farm and the standard CO2 concentration of the livestock and poultry farm; The CO2 adsorption material in the air carbon capture device is selected according to the target CO2 capture rate.

8. The method for integrated air carbon capture in aquaculture and greenhouse according to claim 7, wherein the CO2 adsorption material in the air carbon capture device is selected according to the target CO2 capture rate, comprising: Presetting a mapping relationship between candidate CO2 adsorption materials and candidate CO2 capture rates; Based on the target CO 2 capture rate obtained by calculation, the mapping relationship is queried to determine the CO 2 adsorbent material from a plurality of candidate CO 2 adsorbent materials.

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