CO2 gas adsorption tower

Abstract

The utility model provides a CO2 gas adsorption tower which comprises a CO2 gas adsorption tower, the output end and the input end of the CO2 gas adsorption tower are respectively connected with an exhaust gas outlet stop valve, a CO2 recovery side stop valve, an adsorption tower built-in heat exchange pipe oil outlet stop valve, an adsorption tower jacket oil outlet stop valve, a flue gas inlet stop valve, an adsorption tower jacket oil inlet stop valve, an adsorption tower built-in heat exchange pipe oil inlet stop valve and a low-temperature carbon dioxide cooling gas inlet valve. The CO2 gas adsorption tower provided by the utility model can efficiently capture CO2: the CO2 gas adsorption tower adopts advanced adsorption technology and materials, can efficiently capture CO2 in flue gas, and compared with a traditional treatment method, the adsorption tower has higher adsorption efficiency and selectivity, can separate a large amount of CO2 from the flue gas, and reduces the emission of CO2.

Description

Technical Field

[0001] This utility model relates to the industrial field, and in particular to a CO2 gas adsorption tower. Background Technology

[0002] Many industrial sectors (such as thermal power generation, steel, cement, and chemical industries) emit large amounts of CO2-containing flue gas during production processes, requiring the capture and treatment of CO2 in industrial flue gas. CO2 gas adsorption towers are the core equipment for achieving this treatment requirement.

[0003] Industrial emission sources: Many industrial sectors, such as thermal power generation, steel, cement, and chemical industries, emit large amounts of CO2-containing flue gas during production. If the CO2 in these flue gases is directly released into the atmosphere, it will exacerbate the greenhouse effect. Therefore, it is necessary to capture and treat CO2 in industrial flue gas, and CO2 gas adsorption towers play an important role in this process.

[0004] Limitations of traditional treatment methods: Traditional CO2 treatment methods, such as chemical absorption and physical adsorption, have some shortcomings. For example, chemical absorption requires a large amount of chemical reagents, which is costly and can easily cause secondary pollution; physical adsorption has a limited adsorption capacity and requires frequent regeneration of the adsorbent.

[0005] Therefore, it is necessary to provide a CO2 gas adsorption tower to solve the above-mentioned technical problems. Utility Model Content

[0006] This invention provides a CO2 gas adsorption tower that solves some shortcomings of traditional CO2 treatment methods, such as chemical absorption and physical adsorption. For example, chemical absorption requires a large amount of chemical reagents, which is costly and can easily cause secondary pollution; physical adsorption has limited adsorption capacity and requires frequent regeneration of the adsorbent.

[0007] To solve the above-mentioned technical problems, this utility model provides a CO2 gas adsorption tower, comprising:

[0008] The CO2 gas adsorption tower is equipped with a waste gas outlet shut-off valve, a CO2 recovery side shut-off valve, an oil outlet shut-off valve for the displacement heat pipe inside the adsorption tower, an oil outlet shut-off valve for the adsorption tower jacket, a flue gas inlet shut-off valve, an oil inlet shut-off valve for the adsorption tower jacket, and a low-temperature carbon dioxide cooling inlet valve, respectively connected to its output and input ends.

[0009] One end of the oil inlet shut-off valve of the adsorption tower jacket and the oil inlet shut-off valve of the heat exchange tube inside the adsorption tower are respectively connected to a heat transfer oil vent valve and a heat transfer oil inlet shut-off valve. One end of the heat transfer oil inlet shut-off valve is respectively connected to a heat transfer oil inlet temperature sensor and a heat transfer oil inlet pressure sensor.

[0010] One end of the flue gas inlet shut-off valve is connected to a flue gas inlet pressure sensor.

[0011] An adsorption tower temperature sensor is connected to one side of the CO2 gas adsorption tower.

[0012] A waste gas CO2 content analyzer, a waste gas pressure sensor, and a CO2 recovery side pressure sensor are respectively connected between the CO2 gas adsorption tower, the waste gas outlet shut-off valve, and the CO2 recovery side shut-off valve.

[0013] Preferably, the CO2 gas adsorption tower is equipped with a specially made CO2 adsorbent.

[0014] Preferably, the specially formulated CO2 adsorbent is a porous ammonified carbon-based adsorbent, which can selectively adsorb CO2 gas.

[0015] Preferably, the heat transfer oil inlet shut-off valve and the adsorption tower jacket oil inlet shut-off valve are opened when the adsorption tower enters the CO2 gas recovery process to heat up and desorb the CO2 gas in the adsorption tower.

[0016] Preferably, the surface of the exhaust gas CO2 content analyzer is provided with a protective component, which includes two protective covers, and a rectangular through groove is opened on one side of the two protective covers opposite each other.

[0017] Preferably, the bottom of both protective covers is connected to a fixing frame, and one end of the fixing frame is connected to a mounting ring.

[0018] Preferably, a bolt is provided between the two mounting rings.

[0019] Compared with related technologies, the CO2 gas adsorption tower provided by this utility model has the following beneficial effects:

[0020] This invention provides a CO2 gas adsorption tower that efficiently captures CO2: The CO2 gas adsorption tower adopts advanced adsorption technology and materials, which can efficiently capture CO2 in flue gas. Compared with traditional treatment methods, the adsorption tower has higher adsorption efficiency and selectivity, and can separate a large amount of CO2 from the flue gas, reducing CO2 emissions.

[0021] Cost reduction: Some new adsorbents have good regeneration performance and can be reused multiple times, reducing the cost of adsorbents. At the same time, the operating cost of adsorption towers is relatively low, and they do not require the consumption of large amounts of chemical reagents and energy, making them highly economical.

[0022] Environmentally friendly and energy-saving: CO2 gas adsorption towers do not produce secondary pollution during operation, making them environmentally friendly. In addition, the adsorption process is usually carried out at normal temperature and pressure, resulting in low energy consumption, which meets the requirements of energy conservation and environmental protection.

[0023] Resource utilization: The captured CO2 can be further utilized, such as in carbonation reactions in industrial production and enhanced oil recovery, to achieve resource recycling and reduce dependence on traditional fossil resources. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of a first embodiment of a CO2 gas adsorption tower provided by this utility model;

[0025] Figure 2 This is a schematic diagram of the second embodiment of a CO2 gas adsorption tower provided by this utility model.

[0026] The following labels are used in the diagram: 84f, CO2 gas adsorption tower; 85f, special CO2 adsorbent; 86f, adsorption tower temperature sensor; 87f, exhaust gas CO2 content analyzer; 88f, exhaust gas pressure sensor; 89f, exhaust gas outlet shut-off valve; 90f, CO2 recovery side pressure sensor; 91f, CO2 recovery side shut-off valve; 92f, heat transfer oil inlet temperature sensor; 93f, heat transfer oil inlet pressure sensor; 94f, heat transfer oil inlet shut-off valve; 95f, adsorption tower jacket oil inlet shut-off valve; 96f, adsorption tower internal displacement heat pipe oil inlet shut-off valve; 97f, adsorption tower jacket oil outlet shut-off valve; 98f, adsorption tower internal displacement heat pipe oil outlet shut-off valve; 99f, heat transfer oil vent valve; 100f, low-temperature carbon dioxide cooling inlet valve.

[0027] 101f, Protective component; 1011f, Protective cover; 1012f, Rectangular through slot; 1013f, Fixing bracket; 1014f, Mounting ring; 1015f, Bolt. Detailed Implementation

[0028] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0029] First Embodiment

[0030] Please refer to the following: Figure 1 ,in, Figure 1 This is a schematic diagram of the structure of a first embodiment of a CO2 gas adsorption tower provided by this utility model. A CO2 gas adsorption tower includes:

[0031] CO2 gas adsorption tower 84f, the output end and input end of the CO2 gas adsorption tower 84f are respectively connected to exhaust gas outlet shut-off valve 89f, CO2 recovery side shut-off valve 91f, adsorption tower internal displacement heat pipe oil outlet shut-off valve 98f, adsorption tower jacket oil outlet shut-off valve 97f, flue gas inlet shut-off valve 83f, adsorption tower jacket oil inlet shut-off valve 95f, adsorption tower internal displacement heat pipe oil inlet shut-off valve 96f, and low temperature carbon dioxide cooling inlet valve 100f;

[0032] One end of the oil inlet shut-off valve 95f in the jacket of the adsorption tower and the oil inlet shut-off valve 96f in the heat exchange tube of the adsorption tower are respectively connected to a heat transfer oil vent valve 99f and a heat transfer oil inlet shut-off valve 94f. One end of the heat transfer oil inlet shut-off valve 94f is respectively connected to a heat transfer oil inlet temperature sensor 92f and a heat transfer oil inlet pressure sensor 93f.

[0033] One end of the flue gas inlet shut-off valve 83f is connected to a flue gas inlet pressure sensor 82f;

[0034] An adsorption tower temperature sensor 86f is connected to one side of the CO2 gas adsorption tower 84f.

[0035] A waste gas CO2 content analyzer 87f, a waste gas pressure sensor 88f, and a CO2 recovery side pressure sensor 90f are respectively connected between the CO2 gas adsorption tower 84f, the waste gas outlet shut-off valve 89f, and the CO2 recovery side shut-off valve 91f.

[0036] The CO2 gas adsorption tower 84f is equipped with a specially made CO2 adsorbent 85f.

[0037] The specially formulated CO2 adsorbent 85f is a porous ammonified carbon-based adsorbent that can selectively adsorb CO2 gas.

[0038] The heat transfer oil inlet shut-off valve 94f and the adsorption tower jacket oil inlet shut-off valve 95f are opened when the adsorption tower enters the CO2 gas recovery process to heat up and desorb the CO2 gas in the adsorption tower.

[0039] The specially formulated CO2 adsorbent 85f is a porous ammonified carbon-based adsorbent that can selectively adsorb CO2 gas.

[0040] The exhaust gas CO2 content analyzer 87f is interlocked with the flue gas inlet shut-off valve 83f, the exhaust gas outlet shut-off valve 89f, and the CO2 recovery side shut-off valve 91f. When the CO2 content at the exhaust gas outlet reaches the concentration of the inlet flue gas CO2 content analyzer, the flue gas inlet shut-off valve 83f and the exhaust gas outlet shut-off valve 89f close, and the CO2 recovery side shut-off valve 91f opens, thus entering the CO2 gas recovery process.

[0041] The heat transfer oil inlet shut-off valve 94f and the adsorption tower jacket oil inlet shut-off valve 95f are opened when the adsorption tower enters the CO2 gas recovery process to heat up and desorb the CO2 gas in the adsorption tower; when the pressure of the adsorption tower drops to -75kPa, the heat transfer oil inlet shut-off valve 94f and the adsorption tower jacket oil inlet shut-off valve 95f are closed, and at the same time the heat transfer oil vent valve 99f and the low temperature carbon dioxide cooling inlet valve 100f are opened.

[0042] The CO2 recovery side pressure sensor 90f has a range of -75kPa to 0.8MPa and is interlocked with the CO2 recovery side shut-off valve 91f and the negative pressure vacuum CO2 recovery device. When the CO2 recovery side pressure is 8kPa, the CO2 recovery side shut-off valve 91f closes and the negative pressure vacuum CO2 recovery device starts.

[0043] Compared with related technologies, the CO2 gas adsorption tower provided by this utility model has the following beneficial effects:

[0044] This invention provides a CO2 gas adsorption tower that efficiently captures CO2: The CO2 gas adsorption tower adopts advanced adsorption technology and materials, which can efficiently capture CO2 in flue gas. Compared with traditional treatment methods, the adsorption tower has higher adsorption efficiency and selectivity, and can separate a large amount of CO2 from the flue gas, reducing CO2 emissions.

[0045] Cost reduction: Some new adsorbents have good regeneration performance and can be reused multiple times, reducing the cost of adsorbents. At the same time, the operating cost of adsorption towers is relatively low, and they do not require the consumption of large amounts of chemical reagents and energy, making them highly economical.

[0046] Environmentally friendly and energy-saving: CO2 gas adsorption towers do not produce secondary pollution during operation, making them environmentally friendly. In addition, the adsorption process is usually carried out at normal temperature and pressure, resulting in low energy consumption, which meets the requirements of energy conservation and environmental protection.

[0047] Resource utilization: The captured CO2 can be further utilized, such as in carbonation reactions in industrial production and enhanced oil recovery, to achieve resource recycling and reduce dependence on traditional fossil resources.

[0048] Second Embodiment

[0049] Please refer to the following: Figure 2 Based on the CO2 gas adsorption tower provided in the first embodiment of this application, the second embodiment of this application proposes another CO2 gas adsorption tower. The second embodiment is merely a preferred embodiment of the first embodiment, and the implementation of the second embodiment will not affect the separate implementation of the first embodiment.

[0050] Specifically, the difference in the CO2 gas adsorption tower provided in the second embodiment of this application is that the CO2 gas adsorption tower has a protective component 101f on the surface of the exhaust gas CO2 content analyzer 87f. The protective component 101f includes two protective covers 1011f, and a rectangular through groove 1012f is opened on the opposite side of the two protective covers 1011f.

[0051] The bottom of each of the two protective covers 1011f is connected to a fixing bracket 1013f, and one end of the fixing bracket 1013f is connected to a mounting ring 1014f.

[0052] Two protective covers 1011f are set together from both sides of the exhaust gas CO2 content analyzer 87f, and the mounting ring 1014f is sleeved under the exhaust gas CO2 content analyzer 87f and fixed by threaded connection with bolt 1015f.

[0053] A bolt 1015f is provided between the two mounting rings 1014f.

[0054] The working principle of the CO2 gas adsorption tower provided by this utility model is as follows:

[0055] When using the exhaust gas CO2 content analyzer 87f, first, put the protective cover 1011f with the mounting ring 1014f onto the surface of the exhaust gas CO2 content analyzer 87f, and then use bolts 1015f to thread the two mounting rings 1014f together.

[0056] Compared with related technologies, the CO2 gas adsorption tower provided by this utility model has the following beneficial effects:

[0057] This utility model provides a CO2 gas adsorption tower. A protective component 101f is set on the surface of the exhaust gas CO2 content analyzer 87f to prevent damage to the exhaust gas CO2 content analyzer 87f from collision when it is exposed to the outside.

[0058] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A CO2 gas adsorption tower, characterized in that, include: The CO2 gas adsorption tower is equipped with a waste gas outlet shut-off valve, a CO2 recovery side shut-off valve, an oil outlet shut-off valve for the displacement heat pipe inside the adsorption tower, an oil outlet shut-off valve for the adsorption tower jacket, a flue gas inlet shut-off valve, an oil inlet shut-off valve for the adsorption tower jacket, and a low-temperature carbon dioxide cooling inlet valve, respectively connected to its output and input ends. One end of the oil inlet shut-off valve of the adsorption tower jacket and the oil inlet shut-off valve of the heat exchange tube inside the adsorption tower are respectively connected to a heat transfer oil vent valve and a heat transfer oil inlet shut-off valve. One end of the heat transfer oil inlet shut-off valve is respectively connected to a heat transfer oil inlet temperature sensor and a heat transfer oil inlet pressure sensor. One end of the flue gas inlet shut-off valve is connected to a flue gas inlet pressure sensor. An adsorption tower temperature sensor is connected to one side of the CO2 gas adsorption tower. A waste gas CO2 content analyzer, a waste gas pressure sensor, and a CO2 recovery side pressure sensor are respectively connected between the CO2 gas adsorption tower, the waste gas outlet shut-off valve, and the CO2 recovery side shut-off valve.

2. The CO2 gas adsorption tower according to claim 1, characterized in that, The CO2 gas adsorption tower is equipped with a specially made CO2 adsorbent.

3. The CO2 gas adsorption tower according to claim 2, characterized in that, The specially formulated CO2 adsorbent is a porous ammonified carbon-based adsorbent that can selectively adsorb CO2 gas.

4. The CO2 gas adsorption tower according to claim 1, characterized in that, The heat transfer oil inlet shut-off valve and the adsorption tower jacket oil inlet shut-off valve are opened when the adsorption tower enters the CO2 gas recovery process to heat up and desorb the CO2 gas in the adsorption tower.

5. The CO2 gas adsorption tower according to claim 1, characterized in that, The surface of the exhaust gas CO2 content analyzer is provided with a protective component, which includes two protective covers, and a rectangular through groove is opened on one side of the two protective covers opposite each other.

6. The CO2 gas adsorption tower according to claim 5, characterized in that, Both of the protective covers are connected to a mounting bracket at their bottom, and one end of the mounting bracket is connected to a mounting ring.

7. The CO2 gas adsorption tower according to claim 6, characterized in that, A bolt is provided between the two mounting rings.

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