Waste gas carbon capture device based on physical adsorption technology

Abstract

This utility model provides a waste gas carbon capture device based on physical adsorption technology, relating to the field of waste gas carbon capture equipment. It includes a separation component comprising a separation tank for particulate matter separation, a fan for increasing gas flow, and a discharge component for particulate matter emission. The separation tank includes a cylinder, a conical cylinder at the bottom of the cylinder, a hopper at the bottom of the conical cylinder, an inner tube within the inner cavity of the cylinder, a spiral discharge pipe at the top of the cylinder, and a spiral feed pipe at the upper surface of the cylinder. Through the separation component, this utility model can first separate particulate matter in the waste gas. The separation tank, composed of a cylinder, a conical cylinder, and a hopper, forms a multi-stage gravity settling and centrifugal separation, causing particulate matter in the waste gas to settle due to centrifugal force and gravity, thereby achieving separation of particulate matter from the gas. This protects the high-efficiency adsorption material in the adsorption tower from contamination or blockage, maintaining its adsorption performance.

Description

Technical Field

[0001] This utility model belongs to the field of waste gas carbon capture equipment, specifically a waste gas carbon capture device based on physical adsorption technology. Background Technology

[0002] A carbon capture device is a technical device used to reduce greenhouse gas emissions. It is mainly used to capture carbon dioxide in industrial waste gas. It utilizes the selective adsorption capacity of adsorption materials for carbon dioxide and achieves the capture and separation of carbon dioxide through adsorption and desorption processes. It mainly consists of an adsorption tower, a desorption tower, and a post-treatment unit. It is suitable for industries with high CO2 emissions, such as steel and cement. This device can not only effectively reduce the carbon dioxide concentration in industrial waste gas and reduce the impact on the environment, but also recycle and reuse the captured carbon dioxide, thereby realizing the recycling of resources.

[0003] The adsorption tower is filled with highly efficient adsorption materials, which have a strong adsorption capacity for carbon dioxide, ensuring that carbon dioxide in the waste gas is fully captured. The desorption tower separates the carbon dioxide by changing conditions, such as temperature or pressure, so that the carbon dioxide adsorbed on the material is desorbed. The post-treatment unit further processes the desorbed carbon dioxide to meet different utilization needs. However, the waste gas usually contains a large amount of particulate matter. If these particulate matter enters the adsorption tower directly, it can easily clog the adsorption material inside the tower, affecting the subsequent adsorption effect.

[0004] In summary, this utility model provides a waste gas carbon capture device based on physical adsorption technology to solve the above problems. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] A waste gas carbon capture device based on physical adsorption technology includes a separation component, including a separation tank for particulate matter separation, a fan for increasing gas flow, and a discharge component for particulate matter emission.

[0007] The separation tank includes a cylinder, a conical cylinder at the bottom of the cylinder, a hopper at the bottom of the conical cylinder, an inner tube in the inner cavity of the cylinder, a spiral discharge pipe at the top of the cylinder, and a spiral feed pipe at the upper surface of the cylinder, and the air inlet of the blower is connected to the spiral discharge pipe.

[0008] The carbon capture assembly includes a buffer tank for storing waste gas, an adsorption assembly for adsorption, an adsorption assembly for carbon dioxide desorption, and a purification assembly for carbon dioxide purification, wherein the outlet of the fan is connected to the buffer tank via a pipeline.

[0009] Furthermore, this invention also includes a support frame for supporting the carbon capture assembly, wherein the fan, buffer tank, adsorption assembly, desorption assembly, and purification assembly are all fixed to the surface of the support frame.

[0010] Furthermore, in this utility model, the inner cavities of the cylinder, the conical cylinder, and the collecting hopper are interconnected, one end of the inner tube is connected to the inner cavity of the cylinder, the other end of the inner tube is connected to the inner cavity of the spiral discharge pipe, and the spiral feed pipe is connected to the inner cavity of the cylinder.

[0011] Furthermore, in this utility model, the discharge assembly includes a discharge valve connected to the bottom of the hopper and a discharge pipe connected to the discharge valve.

[0012] Furthermore, in this invention, the adsorption assembly includes an adsorption tower for capturing carbon dioxide, an absorbent tank, a spray pump, and a delivery pump. The inlet of the spray pump is connected to an external amine solution tank, the outlet of the spray pump extends into the adsorption tower through a pipe, the outlet of the adsorption tower is connected to the absorbent tank, the outlet of the buffer tank is connected to the adsorption tower, and the inlet of the delivery pump is connected to the absorbent tank.

[0013] Furthermore, in this invention, the desorption assembly includes a desorption tower for carbon dioxide desorption, a desorption liquid tank, and a circulation pump. The outlet of the transfer pump is connected to the desorption tower via a pipeline, the inlet of the circulation pump is connected to the desorption liquid tank, and the outlet of the circulation pump extends into the adsorption tower via a pipeline.

[0014] Furthermore, in this invention, the purification assembly includes a condenser, a separator, a compressor pump, an evaporator, and a storage tank for further purification of carbon dioxide. The gas outlet of the stripping tower is connected to the condenser via a pipeline. The condenser is provided in two sets: one set for cooling the lean liquid of the stripping tower, and the other set for cooling the carbon dioxide gas stripped by the stripping tower. The outlet of the condenser is connected to the separator via a pipeline. The gas outlet of the separator is connected to the inlet of the compressor pump via a pipeline. The outlet of the compressor pump is connected to the evaporator, and the outlet of the evaporator is connected to the storage tank.

[0015] Beneficial effects: This utility model has the following beneficial effects:

[0016] This invention, through the design of a separation component, can first separate particulate matter in the waste gas. The separation tank consists of a cylinder, a conical cylinder, and a collection hopper, forming a multi-stage gravity sedimentation and centrifugal separation. This causes the particulate matter in the waste gas to settle due to centrifugal force and gravity, thereby achieving the separation of particulate matter from the gas. This also protects the high-efficiency adsorption material in the adsorption tower from contamination or blockage, maintaining its adsorption performance. At the same time, through the design of a carbon capture component, carbon dioxide in the waste gas can be efficiently captured, and the captured carbon dioxide can be purified using a purification component, realizing the recycling and reuse of carbon dioxide. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the connection state structure of the separation component of this utility model;

[0019] Figure 3 This is a partial cross-sectional view of the separation tank of this utility model;

[0020] Figure 4 This is a schematic diagram of the connection structure between the adsorption component and the desorption component of this utility model and the support frame;

[0021] Figure 5 This is a schematic diagram of the carbon capture process of this utility model.

[0022] In the picture:

[0023] 100. Separation assembly; 110. Separation tank; 111. Cylinder; 112. Conical cylinder; 113. Collection hopper; 114. Inner tube; 115. Spiral discharge pipe; 116. Spiral feed pipe; 120. Blower; 130. Discharge assembly; 131. Discharge valve; 132. Discharge pipe; 200. Carbon capture assembly; 210. Buffer tank; 220. Adsorption assembly; 221. Adsorption tower; 222. Absorbent liquid tank; 223. Spray pump; 224. Transfer pump; 230. Desorption assembly; 231. Desorption tower; 232. Desorption liquid tank; 233. Circulation pump; 240. Purification assembly; 241. Condenser; 242. Separator; 243. Compression pump; 244. Evaporative cooler; 245. Storage tank; 300. Support frame. Detailed Implementation

[0024] To better understand the technical content of this utility model, specific embodiments are described below in conjunction with the accompanying drawings. Various aspects of this utility model are described in this disclosure with reference to the accompanying drawings, which illustrate numerous illustrative embodiments. The embodiments of this disclosure are not necessarily defined to include all aspects of this utility model. It should be understood that the various concepts and embodiments described above, as well as those described in more detail below, can be implemented in any of many ways, because the concepts and embodiments disclosed in this utility model are not limited to any particular implementation. Furthermore, some aspects of this utility model can be used alone or in any suitable combination with other aspects disclosed in this utility model.

[0025] Example 1

[0026] like Figure 1-5 As shown, this is the first embodiment of the present invention. This embodiment provides a waste gas carbon capture device based on physical adsorption technology, including a separation component 100, comprising a separation tank 110 for particulate matter separation, a fan 120 for increasing gas flow, and a discharge component 130 for particulate matter discharge. The separation tank 110 includes a cylinder 111, a conical cylinder 112 located at the bottom of the cylinder 111, a collection hopper 113 located at the bottom of the conical cylinder 112, an inner tube 114 located inside the cavity of the cylinder 111, and a discharge assembly 130 located at the top of the cylinder 111. The device includes a spiral discharge pipe 115 and a spiral feed pipe 116 located at the upper end of the surface of the cylinder 111. The air inlet of the blower 120 is connected to the spiral discharge pipe 115. The waste gas carbon capture device also includes a carbon capture assembly 200 for carbon capture. The carbon capture assembly 200 includes a buffer tank 210 for waste gas buffer storage, an adsorption assembly 220 for adsorption, an adsorption assembly 230 for carbon dioxide desorption, and a purification assembly 240 for carbon dioxide purification. The air outlet of the blower 120 is connected to the buffer tank 210 through a pipe.

[0027] like Figure 1-5 As shown, the cylindrical 111 and conical 112 form an airflow velocity variation zone, achieving particulate matter separation in the exhaust gas through centrifugal force and gravity settling. The inner tube 114, in conjunction with the spiral feed pipe 116 and spiral discharge pipe 115, guides the airflow to flow evenly, improving separation efficiency. The collection hopper 113 and the discharge assembly 130 work together to collect the separated particulate matter and discharge it periodically. The fan 120 provides airflow power to ensure stable flow of exhaust gas in the separation tank 110. The separation tank 110 effectively intercepts particulate matter in the exhaust gas, preventing it from directly entering the adsorption tower 221, thus providing a clean airflow environment for subsequent carbon capture.

[0028] The buffer tank 210 receives the purified exhaust gas from the fan 120, which plays a role in gas buffering and pressure regulation to prevent fluctuations from affecting subsequent treatment. The adsorption component 220 absorbs CO2 in the exhaust gas, the desorption component 230 separates the CO2 absorbed by the adsorption component 220, and the purification component 240 improves the purity of CO2, thereby realizing CO2 recovery.

[0029] Example 2

[0030] Reference Figure 1-3 This is the second embodiment of the present invention, which is based on the previous embodiment.

[0031] In this embodiment, a support frame 300 for supporting the carbon capture component 200 is also included. The fan 120, buffer tank 210, adsorption component 220, desorption component 230 and purification component 240 are all fixed to the surface of the support frame 300.

[0032] The inner cavities of the cylinder 111, the conical cylinder 112, and the collecting hopper 113 are interconnected. One end of the inner tube 114 is connected to the inner cavity of the cylinder 111, and the other end of the inner tube 114 is connected to the inner cavity of the spiral discharge pipe 115. The spiral feed pipe 116 is connected to the inner cavity of the cylinder 111.

[0033] The inner cavities of the cylinder 111, the conical cylinder 112, and the collecting hopper 113 are interconnected. One end of the inner tube 114 is connected to the inner cavity of the cylinder 111, and the other end of the inner tube 114 is connected to the inner cavity of the spiral discharge pipe 115. The spiral feed pipe 116 is connected to the inner cavity of the cylinder 111.

[0034] like Figure 1-3 As shown, the exhaust gas is first separated in the separator 110. The exhaust gas enters the inner cavity of the cylinder 111 through the spiral feed pipe 116. The exhaust gas is separated in the cylinder 111 and the conical cylinder 112. The particulate matter settles into the collection hopper 113 under the action of gravity and centrifugal force. The separated gas is discharged from the top spiral discharge pipe 115 through the inner pipe 114 and enters the blower 120. The blower 120 increases the flow pressure and sends the separated exhaust gas into the buffer tank 210 for subsequent carbon capture. The particulate matter collected in the collection hopper 113 is discharged through the discharge valve 131 and transported to the external collection device through the discharge pipe 132, completing the particulate matter separation stage.

[0035] Example 3

[0036] Reference Figure 1 , 4 5 and 6 are the third embodiment of this utility model, which is based on the first two embodiments.

[0037] In this embodiment, the adsorption assembly 220 includes an adsorption tower 221 for capturing carbon dioxide, an absorbent tank 222, a spray pump 223, and a delivery pump 224. The inlet of the spray pump 223 is connected to an external amine solution tank, and the outlet of the spray pump 223 extends into the adsorption tower 221 through a pipe. The outlet of the adsorption tower 221 is connected to the absorbent tank 222, the outlet of the buffer tank 210 is connected to the adsorption tower 221, and the inlet of the delivery pump 224 is connected to the absorbent tank 222.

[0038] The desorption assembly 230 includes a desorption tower 231 for carbon dioxide desorption, a desorption liquid tank 232, and a circulation pump 233. The outlet of the transfer pump 224 is connected to the desorption tower 231 via a pipeline, the inlet of the circulation pump 233 is connected to the desorption liquid tank 232, and the outlet of the circulation pump 233 extends into the adsorption tower 221 via a pipeline.

[0039] The purification assembly 240 includes a condenser 241, a separator 242, a compressor pump 243, an evaporator 244, and a storage tank 245 for further purification of carbon dioxide. The gas outlet of the stripping tower 231 is connected to the condenser 241 via a pipeline. The condenser 241 is provided with two sets: one set for cooling the lean liquid of the stripping tower 231, and the other set for cooling the carbon dioxide gas stripped by the stripping tower 231. The outlet of the condenser 241 is connected to the separator 242 via a pipeline. The gas outlet of the separator 242 is connected to the inlet of the compressor pump 243 via a pipeline. The outlet of the compressor pump 243 is connected to the evaporator 244. The outlet of the evaporator 244 is connected to the storage tank 245.

[0040] like Figure 1 , 4 As shown in Figure 5, the adsorption tower 221 is filled with an adsorption material that has high selectivity and adsorption capacity for CO2. The adsorption material can be activated carbon, molecular sieve, or MOFs. A spray pipe is also installed inside the tower and above the adsorption material. The outlet of the spray pump 223 is connected to the spray pipe through a pipe. The outlet of the circulation pump 233 is also connected to the spray pipe through a pipe. An electric heater is installed inside the desorption tower 231. The electric heater is used to heat the desorption liquid to improve the desorption efficiency of carbon dioxide.

[0041] During the adsorption process, the waste gas enters the adsorption tower 221 from the outlet of the buffer tank 210 and is captured after contacting the adsorption material. Simultaneously, the spray pump 223 pumps the amine solution from the external amine solution tank to the spray pipe inside the adsorption tower 221, where it is evenly sprayed onto the adsorption material to enhance the adsorption effect on carbon dioxide. After adsorption saturation, the absorbent containing carbon dioxide flows into the absorbent liquid tank 222. The transfer pump 224 pumps the absorbent liquid from the absorbent liquid tank 222 to the desorption tower 231 for desorption. The circulation pump 233 then circulates the desorption liquid from the desorption tank 232... The eluent is circulated to the spray pipe for regeneration of the adsorbent material in the adsorption tower 221. During the eluent process, the electric heater heats the eluent, causing carbon dioxide to be released from the absorbent. The released carbon dioxide gas is cooled by the condenser 241 and then enters the separator 242 for gas-liquid separation to obtain pure carbon dioxide gas. The pure carbon dioxide gas is then compressed by the compressor pump 243 and further cooled by the evaporator cooler 244. Finally, it is stored in the storage tank 245 for subsequent use.

[0042] In use, the exhaust gas first enters the separator 110. Inside the cylinder 111, the particulate matter in the exhaust gas settles to the bottom of the conical cylinder 112 due to gravity and is further collected in the collection hopper 113. The particulate matter is discharged through the discharge valve 131 and discharge pipe 132 of the discharge assembly 130. The air inlet of the blower 120 is connected to the spiral discharge pipe 115 to extract the exhaust gas after the particulate matter separation and send it to the subsequent carbon capture assembly 200 through its air outlet.

[0043] The exhaust gas delivered by the blower 120 first enters the buffer tank 210 for buffer storage to stabilize the flow rate and pressure of the exhaust gas. From the buffer tank 210, the exhaust gas enters the adsorption tower 221, where it comes into contact with the amine solution pumped in from the external amine solution tank by the spray pump 223. The amine solution adsorbs carbon dioxide from the exhaust gas. The absorbent liquid containing adsorbed carbon dioxide flows into the absorbent liquid tank 222 for temporary storage. The transfer pump 224 pumps the absorbent liquid from the absorbent liquid tank 222 into the desorption assembly 230. The absorbent liquid is heated in the desorption tower 231, causing carbon dioxide to be desorbed from the amine solution. The lean liquid after desorption flows into the desorption liquid tank 232 for temporary storage. The circulation pump 233 circulates the desorption liquid from the desorption tank 232... The lean liquid is pumped back to the adsorption tower 221 for recycling. The carbon dioxide gas desorbed from the desorption tower 231 first enters a set of condensers 241 for cooling. At the same time, the lean liquid from the desorption tower 231 also enters another set of condensers 241 for cooling. The cooled carbon dioxide gas enters the separator 242 to further remove impurities and moisture. The separated carbon dioxide gas is compressed by the compression pump 243 to increase its pressure. The compressed carbon dioxide gas enters the evaporative cooler 244 for further cooling and finally flows into the storage tank 245 for storage. Through physical adsorption, particulate matter is first separated from the waste gas, and then carbon dioxide in the waste gas is adsorbed, desorbed and purified, ultimately achieving the capture and storage of carbon dioxide.

[0044] All standard parts used in this application can be purchased from the market, and can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. The control method is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art and is common knowledge in the field. Since this application is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail in this application.

[0045] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Those skilled in the art to which this invention pertains can make various modifications and refinements without departing from the spirit and scope of the present invention. Therefore, the scope of protection of this invention shall be determined by the claims.

Claims

1. A waste gas carbon capture device based on physisorption technology, characterized in that: The utility model relates to a carbon capture and storage system, comprising: a separation assembly (100) comprising a separation tank (110) for separating particulate matter, a fan (120) for increasing gas flow, and a discharge assembly (130) for discharging particulate matter; the separation tank (110) comprises a cylinder (111), a conical cylinder (112) at the bottom of the cylinder (111), a collecting hopper (113) at the bottom of the conical cylinder (112), an inner tube (114) in the inner cavity of the cylinder (111), a spiral discharge pipe (115) at the top of the cylinder (111), and a spiral feeding pipe (116) at the upper end of the surface of the cylinder (111), and the air inlet of the fan (120) is communicated with the spiral discharge pipe (115); a carbon capture assembly (200) comprising a buffer tank (210) for buffering exhaust gas, an adsorption assembly (220) for adsorption, a resolution assembly (230) for carbon dioxide resolution, and a purification assembly (240) for carbon dioxide purification, and the gas outlet end of the fan (120) is communicated with the buffer tank (210) through a pipeline.

2. The device for capturing carbon from exhaust gas based on physical adsorption technology according to claim 1, characterized in that: Further comprising a support frame (300) for supporting the carbon capture assembly (200), and the fan (120), the buffer tank (210), the adsorption assembly (220), the resolution assembly (230) and the purification assembly (240) are all fixed on the surface of the support frame (300).

3. The device for capturing carbon from exhaust gas based on physical adsorption technology according to claim 1, characterized in that: The inner cavities of the cylinder (111), the conical cylinder (112) and the collecting hopper (113) are communicated, one end of the inner tube (114) is communicated with the inner cavity of the cylinder (111), the other end of the inner tube (114) is communicated with the inner cavity of the spiral discharge pipe (115), and the spiral feeding pipe (116) is communicated with the inner cavity of the cylinder (111).

4. The device for capturing carbon from exhaust gas based on physical adsorption technology according to claim 1, characterized in that: The discharge assembly (130) comprises a discharge valve (131) communicated with the bottom of the collecting hopper (113), and a discharge pipe (132) communicated with the discharge valve (131).

5. The device for capturing carbon from exhaust gas based on physical adsorption technology according to claim 1, characterized in that: The adsorption assembly (220) comprises an adsorption tower (221) for capturing carbon dioxide, an absorption liquid tank (222), a spray pump (223) and a conveying pump (224), the inlet of the spray pump (223) is communicated with an external amine solution tank, the outlet of the spray pump (223) extends into the adsorption tower (221) through a pipeline, the outlet of the adsorption tower (221) is communicated with the absorption liquid tank (222), the gas outlet of the buffer tank (210) is communicated with the adsorption tower (221), and the inlet of the conveying pump (224) is communicated with the absorption liquid tank (222).

6. The device for capturing carbon from exhaust gas based on physical adsorption technology according to claim 5, characterized in that: The resolution assembly (230) comprises a resolution tower (231) for carbon dioxide resolution, a resolution liquid tank (232) and a circulating pump (233), the outlet of the conveying pump (224) is communicated with the resolution tower (231) through a pipeline, the inlet of the circulating pump (233) is communicated with the resolution liquid tank (232), and the outlet of the circulating pump (233) extends into the adsorption tower (221) through a pipeline.

7. The device for capturing carbon from exhaust gas based on physical adsorption technology according to claim 6, characterized in that: The purification assembly (240) comprises a condenser (241), a separator (242), a compression pump (243), an evaporative cooler (244) and a storage tank (245) for further purification of carbon dioxide, a gas outlet of the resolving column (231) is communicated with the condenser (241) through a pipeline, the condenser (241) is provided with two groups, one group is used for cooling of lean liquid of the resolving column (231), and the other group is used for cooling of carbon dioxide gas resolved by the resolving column (231), an outlet of the condenser (241) is communicated with the separator (242) through a pipeline, a gas outlet of the separator (242) is communicated with an air inlet of the compression pump (243) through a pipeline, an air outlet of the compression pump (243) is communicated with the evaporative cooler (244), and an outlet of the evaporative cooler (244) is communicated with the storage tank (245).

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