A carbon dioxide capture device

Abstract

The utility model relates to carbon dioxide capture technology field, specifically disclose a kind of carbon dioxide capture device, comprising: pretreatment mechanism, pretreatment mechanism includes flue gas exhaust pipe and is installed on the pretreatment component of flue gas exhaust pipe, pretreatment component includes temperature regulating equipment, desulfurization bin and dust bin, carbon capture mechanism, carbon capture mechanism includes the second transmission elbow pipe connected in the lower surface of dust bin, the second transmission elbow pipe is connected with absorption bin away from dust bin one end, absorption bin inside includes amine base compound solution;The device can realize the effect of absorbing carbon dioxide by cooperating with physics and chemistry by setting temperature regulating equipment, desulfurization bin and the pretreatment component of dust bin and absorption bin, finally carbon dioxide sensor detects that carbon dioxide content in flue gas is qualified only to automatically open electromagnetic valve and carry out smoke exhaust operation.

Description

TECHNICAL FIELD

[0001] The utility model belongs to carbon dioxide capture technical field, concretely relates to a carbon dioxide capture device. BACKGROUND

[0002] Carbon dioxide is one of the main greenhouse gases, and its increasing emission is one of the main reasons leading to global climate warming. By adsorbing carbon dioxide in flue gas, the emission of greenhouse gases can be effectively reduced, and the speed of climate change can be slowed down. Moreover, the adsorbed carbon dioxide can be collected and used for other industrial processes, such as enhancing oil extraction, producing chemicals, synthesizing fuels, etc. This not only reduces the emission of carbon dioxide, but also improves energy utilization efficiency and realizes the recycling of resources.

[0003] Traditional carbon capture measures are often a single approach of physical adsorption or chemical reaction absorption, and lack effective pretreatment operation before carbon capture operation, which leads to incomplete reaction of the absorption device with carbon dioxide in flue gas, thereby affecting the absorption rate.

[0004] Therefore, the skilled in the art proposes a carbon dioxide capture device to solve the problems raised in the background art.

[0005] The above information disclosed in the background art is only used to increase the understanding of the background art of the utility model, and therefore, it can include prior art known by those skilled in the art. CONTENT OF THE UTILITY MODEL

[0006] The utility model aims to provide a carbon dioxide capture device to solve the problems raised in the above background art.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0008] A carbon dioxide capture device, comprising:

[0009] A pretreatment mechanism, the pretreatment mechanism comprises a flue gas exhaust pipe and a pretreatment assembly installed on the flue gas exhaust pipe, the pretreatment assembly comprises a temperature adjusting device, a desulfurization bin and a dust removal bin;

[0010] A carbon capture mechanism, the carbon capture mechanism comprises a second transmission elbow connected to the lower surface of the dust removal bin, one end of the second transmission elbow away from the dust removal bin is connected with an absorption bin, the absorption bin comprises an amine-based compound solution inside, the absorption bin is provided with an activated carbon adsorption layer and a carbon dioxide sensor at both ends respectively, one end of the absorption bin is connected with an exhaust pipe, and the exhaust pipe is provided with an electromagnetic valve.

[0011] Preferably, the lower surface of the absorption chamber is connected to a discharge pipe and an addition pipe, both of which are connected to the interior of the absorption chamber.

[0012] Preferably, the desulfurization chamber is equipped with a limestone slurry spray gun, and the temperature control device is equipped with a heat conduction wire.

[0013] Preferably, an electrode adsorption plate is provided inside the dust removal chamber, and an electrode adsorption control device is provided on one surface of the dust removal chamber, wherein the electrode adsorption control device is electrically connected to the electrode adsorption plate.

[0014] Preferably, a first transmission bend is provided between the desulfurization chamber and the dust removal chamber, and the desulfurization chamber is connected to the dust removal chamber through the first transmission bend.

[0015] Preferably, an installation flange is provided between the flue gas exhaust pipe and the temperature control equipment, the flue gas exhaust pipe is connected to the temperature control equipment through the installation flange, and a pressurization device is provided on the absorption chamber.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] (1) This utility model, by setting up a pretreatment component consisting of a temperature control device, a desulfurization chamber, and a dust removal chamber, can first adjust the flue gas to a suitable reaction temperature. Then, limestone slurry is sprayed into the chamber using a limestone slurry spray gun, which can chemically react with sulfur dioxide in the flue gas to generate calcium sulfite. After oxidation, gypsum is generated, thereby achieving a highly efficient desulfurization effect. The dust removal chamber discharges through a strong electric field generated by the electrode adsorption plate, causing free electrons and ions in the gas to be adsorbed onto the dust particles, making the dust particles charged. Then, under the action of the electric field force, they are adsorbed onto the electrode plate and fall into the ash hopper by vibration, thereby achieving a high efficiency in desulfurization. The flue gas undergoes thorough pretreatment before carbon dioxide absorption. When the flue gas enters the absorption chamber, the activated carbon adsorption layer first physically adsorbs the carbon dioxide. Utilizing the high specific surface area and microporous structure of activated carbon, it can fully adsorb carbon dioxide. Then, the carbon dioxide flue gas passes through an amine compound solution, where the amine compounds react with the carbon dioxide to form carbamates or bicarbonates. This achieves the combined effect of physical and chemical absorption of carbon dioxide. Finally, the carbon dioxide sensor detects that the carbon dioxide content in the flue gas is within acceptable limits before automatically opening the solenoid valve to perform the exhaust operation.

[0018] (2) This invention increases the reaction pressure within the absorption chamber by setting up a squeezing device. During physical adsorption, the adsorbent and carbon dioxide molecules mainly interact through van der Waals forces. As the pressure increases, the distance between carbon dioxide molecules decreases, as does the distance between the molecules and the adsorbent surface. This strengthens the van der Waals forces, thereby increasing the binding capacity between carbon dioxide molecules and the adsorbent surface and increasing the adsorption capacity. In contrast, during chemisorption, carbon dioxide molecules react chemically with the active sites on the adsorbent surface to form chemical bonds. Increased pressure increases the number of carbon dioxide molecules per unit volume, which increases the collision frequency between molecules, thereby increasing the contact opportunities between carbon dioxide molecules and the active sites on the adsorbent surface, thus improving the rate of the chemical reaction and the adsorption capacity.

[0019] The above overview is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present invention will become readily apparent from the accompanying drawings and the following detailed description. Attached Figure Description

[0020] Figure 1 This is a left-side three-dimensional structural diagram of the present invention;

[0021] Figure 2 This is a right-view three-dimensional structural diagram of the present invention;

[0022] Figure 3 This is a front view of the present invention;

[0023] Figure 4 This is a schematic diagram of the internal structure of the absorption chamber of this utility model.

[0024] In the diagram: 1. Flue gas exhaust pipe; 2. Mounting flange; 3. Pretreatment assembly; 4. Temperature control equipment; 5. Desulfurization chamber; 6. First transmission bend; 7. Dust removal chamber; 8. Electrode adsorption control device; 9. Second transmission bend; 10. Absorption chamber; 11. Pressurization device; 12. Discharge pipe; 13. Addition pipe; 14. Solenoid valve; 15. Flue gas exhaust pipe; 16. Activated carbon adsorption layer; 17. Amine compound solution; 18. Carbon dioxide sensor. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Example 1:

[0027] Please see Figures 1-4 As shown, a carbon dioxide capture device includes:

[0028] The pretreatment mechanism includes a flue gas exhaust pipe 1 and a pretreatment component 3 installed on the flue gas exhaust pipe 1. The pretreatment component 3 includes a temperature control device 4, a desulfurization chamber 5, and a dust removal chamber 7.

[0029] The carbon capture mechanism includes a second transmission bend 9 connected to the lower surface of the dust collection chamber 7. The end of the second transmission bend 9 away from the dust collection chamber 7 is connected to an absorption chamber 10. The absorption chamber 10 contains an amine compound solution 17. Activated carbon adsorption layers 16 and carbon dioxide sensors 18 are respectively provided at both ends of the absorption chamber 10. One end of the absorption chamber 10 is connected to an exhaust pipe 15, and a solenoid valve 14 is provided on the exhaust pipe 15.

[0030] Specifically, the lower surface of the absorption chamber 10 is connected to a discharge pipe 12 and an addition pipe 13. Both the discharge pipe 12 and the addition pipe 13 are connected to the inside of the absorption chamber 10. The discharge pipe 12 is connected to the waste liquid tank, and the addition pipe 13 is connected to the container of new amine compound solution 17. New reaction solution is continuously added by a pump, so as to ensure that the absorbed carbon dioxide can be recovered and the reaction solution can also be replenished.

[0031] Specifically, the desulfurization chamber 5 is equipped with limestone slurry spray guns, and the temperature control equipment 4 is equipped with heat conduction wires.

[0032] Specifically, the dust removal chamber 7 is equipped with an electrode adsorption plate inside, and an electrode adsorption control device 8 is provided on one surface of the dust removal chamber 7. The electrode adsorption control device 8 is electrically connected to the electrode adsorption plate.

[0033] As can be seen from the above, this device, by setting up a pretreatment component 3 consisting of a temperature control device 4, a desulfurization chamber 5, and a dust removal chamber 7, can first adjust the flue gas to a suitable reaction temperature. Then, limestone slurry is sprayed into the chamber using a limestone slurry spray gun, which can chemically react with the sulfur dioxide in the flue gas to generate calcium sulfite. After oxidation, gypsum is generated, thus achieving a highly efficient desulfurization effect. The dust removal chamber 7 discharges through a strong electric field generated by the electrode adsorption plate, causing free electrons and ions in the gas to be adsorbed onto the dust particles, charging the dust particles. Then, under the action of the electric field force, the particles are adsorbed onto the electrode plate and fall into the ash hopper by vibration, thus achieving a high-efficiency desulfurization effect. When carbon dioxide is absorbed, the flue gas undergoes thorough pretreatment. When the flue gas enters the absorption chamber 10, the activated carbon adsorption layer 16 first physically adsorbs the carbon dioxide. Utilizing the high specific surface area and microporous structure of activated carbon, carbon dioxide can be fully adsorbed. Then, the carbon dioxide flue gas passes through the amine compound solution 17. The amine compounds can react with carbon dioxide to generate carbamates or bicarbonates, thereby achieving the effect of absorbing carbon dioxide through a combination of physical and chemical methods. Finally, the carbon dioxide sensor 18 detects that the carbon dioxide content in the flue gas is qualified before automatically opening the solenoid valve 14 to perform the flue gas exhaust operation.

[0034] Example 2:

[0035] Please see Figures 1-4 As shown, a first transmission bend 6 is provided between the desulfurization chamber 5 and the dust removal chamber 7, and the desulfurization chamber 5 is connected to the dust removal chamber 7 through the first transmission bend 6.

[0036] Specifically, a mounting flange 2 is provided between the flue gas exhaust pipe 1 and the temperature control equipment 4. The flue gas exhaust pipe 1 is connected to the temperature control equipment 4 through the mounting flange 2. A pressurizing device 11 is provided on the absorption chamber 10.

[0037] As can be seen from the above, this invention can increase the reaction pressure within the absorption chamber 10 by setting up a squeezing device. During physical adsorption, the adsorbent and carbon dioxide molecules mainly interact through van der Waals forces. When the pressure increases, the distance between carbon dioxide molecules decreases, and the distance between the molecules and the adsorbent surface also decreases. This strengthens the van der Waals forces, thereby increasing the binding capacity between carbon dioxide molecules and the adsorbent surface and increasing the adsorption capacity. In the chemical adsorption process, carbon dioxide molecules react chemically with the active sites on the adsorbent surface to form chemical bonds. Increased pressure can increase the number of carbon dioxide molecules per unit volume, which can increase the collision frequency between molecules, thereby increasing the contact opportunities between carbon dioxide molecules and the active sites on the adsorbent surface, thus increasing the rate of chemical reaction and the adsorption capacity.

[0038] All standard parts used in this invention can be purchased from the market, and irregularly shaped parts can be customized according to the description and drawings. The specific connection methods for each part all employ conventional methods such as bolts, rivets, and welding, which are mature technologies in the prior art. The machinery, parts, and equipment all use conventional models in the prior art, and the circuit connections also use conventional connection methods in the prior art, which will not be detailed here. Any content not described in detail in this specification belongs to the prior art known to those skilled in the art.

[0039] In the description of this utility model, 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 indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. "A plurality of" means two or more, unless otherwise explicitly specified.

[0040] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0041] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0042] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0043] The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0044] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A carbon dioxide capture device, characterized in that, include: The pretreatment mechanism includes a flue gas exhaust pipe (1) and a pretreatment component (3) installed on the flue gas exhaust pipe (1). The pretreatment component (3) includes a temperature control device (4), a desulfurization chamber (5), and a dust removal chamber (7). The carbon capture mechanism includes a second transmission bend (9) connected to the lower surface of the dust collection chamber (7). The end of the second transmission bend (9) away from the dust collection chamber (7) is connected to an absorption chamber (10). The absorption chamber (10) contains an amine compound solution (17). Activated carbon adsorption layer (16) and carbon dioxide sensor (18) are respectively provided at both ends of the absorption chamber (10). A smoke exhaust pipe (15) is connected to one end of the absorption chamber (10). A solenoid valve (14) is provided on the smoke exhaust pipe (15).

2. The carbon dioxide capture device according to claim 1, characterized in that: The lower surface of the absorption chamber (10) is connected to a discharge pipe (12) and an addition pipe (13), and both the discharge pipe (12) and the addition pipe (13) are connected to the interior of the absorption chamber (10).

3. The carbon dioxide capture device according to claim 1, characterized in that: The desulfurization chamber (5) is equipped with a limestone slurry spray gun, and the temperature control device (4) is equipped with a heat conduction wire.

4. A carbon dioxide capture device according to claim 1, characterized in that: The dust removal chamber (7) is equipped with an electrode adsorption plate inside, and an electrode adsorption control device (8) is provided on one surface of the dust removal chamber (7). The electrode adsorption control device (8) is electrically connected to the electrode adsorption plate.

5. A carbon dioxide capture device according to claim 1, characterized in that: A first transmission bend (6) is provided between the desulfurization chamber (5) and the dust removal chamber (7), and the desulfurization chamber (5) is connected to the dust removal chamber (7) through the first transmission bend (6).

6. A carbon dioxide capture device according to claim 1, characterized in that: An installation flange (2) is provided between the flue gas exhaust pipe (1) and the temperature control device (4). The flue gas exhaust pipe (1) is connected to the temperature control device (4) through the installation flange (2). A pressurizing device (11) is provided on the absorption chamber (10).

Images