CN219682152U - Carbon dioxide's entrapment device in flue gas - Google Patents
Carbon dioxide's entrapment device in flue gas Download PDFInfo
- Publication number
- CN219682152U CN219682152U CN202222866522.2U CN202222866522U CN219682152U CN 219682152 U CN219682152 U CN 219682152U CN 202222866522 U CN202222866522 U CN 202222866522U CN 219682152 U CN219682152 U CN 219682152U
- Authority
- CN
- China
- Prior art keywords
- flue gas
- carbon dioxide
- storage tank
- solution
- solution storage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 title claims abstract description 62
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 47
- 239000003546 flue gas Substances 0.000 title claims abstract description 47
- 229910002092 carbon dioxide Inorganic materials 0.000 title claims abstract description 31
- 239000001569 carbon dioxide Substances 0.000 title claims abstract description 30
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims abstract description 75
- 239000007921 spray Substances 0.000 claims abstract description 38
- 239000010881 fly ash Substances 0.000 claims abstract description 19
- 239000007788 liquid Substances 0.000 claims description 7
- 238000000605 extraction Methods 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 3
- 230000001502 supplementing effect Effects 0.000 description 8
- 238000006243 chemical reaction Methods 0.000 description 6
- 239000002956 ash Substances 0.000 description 4
- 150000002500 ions Chemical class 0.000 description 4
- 229910001425 magnesium ion Inorganic materials 0.000 description 4
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 description 3
- JLVVSXFLKOJNIY-UHFFFAOYSA-N Magnesium ion Chemical compound [Mg+2] JLVVSXFLKOJNIY-UHFFFAOYSA-N 0.000 description 3
- 229910001424 calcium ion Inorganic materials 0.000 description 3
- 238000007711 solidification Methods 0.000 description 3
- 230000008023 solidification Effects 0.000 description 3
- 238000005507 spraying Methods 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000000889 atomisation Methods 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- ZFXVRMSLJDYJCH-UHFFFAOYSA-N calcium magnesium Chemical compound [Mg].[Ca] ZFXVRMSLJDYJCH-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000005431 greenhouse gas Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000004083 survival effect Effects 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02C—CAPTURE, STORAGE, SEQUESTRATION OR DISPOSAL OF GREENHOUSE GASES [GHG]
- Y02C20/00—Capture or disposal of greenhouse gases
- Y02C20/40—Capture or disposal of greenhouse gases of CO2
Landscapes
- Treating Waste Gases (AREA)
Abstract
The utility model relates to a device for capturing carbon dioxide in flue gas, which comprises a solution storage tank and a spray tower which are integrally formed, wherein the spray tower is positioned above the solution storage tank, the solution storage tank is connected with the upper side wall of the spray tower through a solution pump, acetic acid solution and fly ash are arranged in the solution storage tank, a flue gas inlet is formed below the side wall of the spray tower, and a flue gas outlet is formed at the top of the spray tower. Compared with the prior art, the method can effectively improve the extraction efficiency of carbon dioxide in the flue gas.
Description
Technical Field
The utility model relates to the technical field of capturing and utilizing carbon dioxide in flue gas, in particular to a device for capturing carbon dioxide in flue gas.
Background
Global greenhouse effect caused by the rising of the concentration of greenhouse gases in the atmosphere causes the melting of icebergs, the rising of sea level, the reduction of species, the frequent occurrence of various climate disasters around the world, serious economic loss and the threat to human survival. The carbon dioxide emission in China mainly comes from coal-fired power plants, and the carbon dioxide capturing and sealing technology of the power plants is necessarily a long-term technical demand in the low-carbon development strategy in China, wherein the carbon dioxide emission accounts for about 40-50% of the total emission.
Meanwhile, comprehensive utilization of the fly ash of the power generation enterprises becomes an important condition for healthy development of the enterprises. Carbonation techniques can enable CO 2 Reacts with fly ash to effectively store CO 2 And the fly ash performance can be improved, and the method has wide practical application potential.
However, the carbonation technology of the prior art is limited to CO 2 The reaction rate with the fly ash and the extraction efficiency of carbon dioxide in the flue gas are low.
Disclosure of Invention
The utility model aims to overcome the defects of the prior art and provide a device for capturing carbon dioxide in flue gas, which can effectively improve the extraction efficiency of the carbon dioxide in the flue gas.
The aim of the utility model can be achieved by the following technical scheme:
the utility model provides a device for capturing carbon dioxide in flue gas, which comprises a solution storage tank and a spray tower which are integrally formed, wherein the spray tower is positioned above the solution storage tank, the solution storage tank is connected with the upper side wall of the spray tower through a solution pump, acetic acid solution and fly ash are arranged in the solution storage tank, a flue gas inlet is formed below the side wall of the spray tower, and a flue gas outlet is formed at the top of the spray tower.
Preferably, the concentration of the acetic acid solution is 1mol/L.
Preferably, the acetic acid solution has a solids to liquid ratio of 40g/L.
Preferably, a stirrer is arranged in the solution storage tank.
Preferably, the rotational speed of the stirrer is 800-1500 rpm.
Preferably, the fixed shaft of the stirrer is connected with the bottom inner wall of the solution storage tank.
Preferably, a cross beam is arranged between the side walls of the solution storage tank, and the fixed shaft of the stirrer is connected with the bottom of the cross beam.
Preferably, two ends of the solution pump are respectively connected with a first pipeline and a second pipeline, one end, far away from the solution pump, of the first pipeline is inserted into the solution storage tank, and one end, far away from the solution pump, of the second pipeline is inserted into the side wall above the spray tower.
Preferably, one end of the second pipeline inserted into the upper side wall of the spray tower is provided with a plurality of spray heads.
Preferably, the spray heads are provided with three.
Compared with the prior art, the utility model has the following advantages:
(1) According to the utility model, the acetic acid solution and the fly ash are arranged in the solution storage tank, so that alkaline ions in the fly ash enter the acetic acid solution, and the acetic acid solution containing calcium ions and magnesium ions is lifted to the upper part of the spray tower through the solution pump to be fully contacted with the introduced flue gas, so that the solidification reaction of carbon dioxide is carried out, and the extraction efficiency of carbon dioxide in the flue gas is effectively improved.
(2) According to the utility model, the stirrer is arranged in the solution storage tank, so that the acetic acid solution and the fly ash are fully stirred and mixed, alkaline ions in the acetic acid solution are increased, and further flue gas is fully contacted with each alkaline ion, the solidification reaction of carbon dioxide is completed, and the extraction efficiency of carbon dioxide in the flue gas is improved.
(3) According to the utility model, the side wall of the solution storage tank is provided with the liquid supplementing and ash supplementing port, so that the acetic acid solution and the fly ash can be conveniently added according to actual conditions.
Drawings
Fig. 1 is a schematic structural diagram of a device for capturing carbon dioxide in flue gas according to the present embodiment.
Fig. 2 is a schematic view showing a connection structure between a fixed shaft and a cross beam of the stirrer in the embodiment shown in fig. 1.
The figure indicates:
1. the device comprises a solution storage tank, 2, a stirrer, 3, a liquid supplementing and ash supplementing port, 4, a solution pump, 5, a spray tower, 6, a flue gas inlet, 7, a flue gas outlet, 8, a collecting plate, 9, a first pipeline, 10, a second pipeline, 11 and a cross beam.
Detailed Description
The utility model will now be described in detail with reference to the drawings and specific examples.
Examples:
as shown in fig. 1, the utility model provides a device for capturing carbon dioxide in flue gas, which comprises a solution storage tank 1 and a spray tower 5 which are integrally formed, wherein the spray tower 5 is positioned above the solution storage tank 1, the solution storage tank 1 is connected with the upper side wall of the spray tower 5 through a solution pump 4, acetic acid solution and fly ash are arranged in the solution storage tank 1, a flue gas inlet 6 is formed below the side wall of the spray tower 5, and a flue gas outlet 7 is formed at the top of the spray tower 5.
Working principle: under the action of acetic acid, alkaline ions such as calcium ions and magnesium ions in the fly ash are separated out and enter acetic acid solution, the solution pump 4 lifts the acetic acid solution containing the calcium ions and the magnesium ions above the spray tower 5 for atomization spraying, flue gas is introduced from the flue gas inlet 6, so that the flue gas enters the spray tower 5 and fully contacts with the acetic acid solution to complete the solidification reaction of carbon dioxide, the extraction efficiency of the carbon dioxide in the flue gas is effectively improved, and the residual flue gas is discharged from the flue gas outlet 7.
As an alternative implementation manner, the side wall of the solution storage tank 1 is provided with a liquid supplementing and ash supplementing port 3. In order to compensate the mass loss of acetic acid and fly ash in the reaction process, the liquid supplementing and ash supplementing port 3 is arranged, so that the acetic acid solution and the fly ash can be conveniently added.
As an alternative embodiment, the concentration of the acetic acid solution is 1mol/L and the solid-to-liquid ratio is 40g/L.
As an alternative embodiment, a stirrer 2 is provided in the solution tank 1.
As an alternative embodiment, the rotational speed of the stirrer 2 is 800 to 1500rpm. Preferably, the rotational speed of the agitator 2 is 1000rpm so that the acetic acid solution and the fly ash are thoroughly mixed.
As an alternative embodiment, the fixed shaft of the stirrer 2 is connected to the bottom inner wall of the solution tank 1.
As an alternative embodiment, a cross beam 11 is arranged between the side walls of the solution storage tank 1, and the fixed shaft of the stirrer 2 is connected with the bottom of the cross beam 11.
As an alternative embodiment, a first pipe 8 and a second pipe 9 are respectively connected to two ends of the solution pump 4, one end of the first pipe 8 away from the solution pump 4 is inserted into the solution storage tank 1, and one end of the second pipe 9 away from the solution pump 4 is inserted into the upper side wall of the spray tower 5.
As an alternative embodiment, the end of the second pipe 9 inserted into the upper side wall of the spray tower 5 is provided with a plurality of spray heads 10.
As an alternative embodiment, the head 10 is provided with 3.
The working principle of the device for capturing carbon dioxide in flue gas provided by the embodiment is as follows:
adding an acetic acid solution and fly ash into a solution storage tank 1, fully mixing the acetic acid solution and the fly ash through a stirrer 2, sequentially spraying the mixture through a first pipeline 8, a solution pump 4 and a second pipeline 9, atomizing and spraying the mixture through a spray nozzle 10, introducing low-temperature flue gas from a flue gas inlet 6, enabling the flue gas to enter a spray tower 5, flowing through the inside of the spray tower from bottom to top, reversely and fully contacting the acetic acid/fly ash solution, completing carbonation reaction between CO2 in the flue gas and calcium magnesium ions in the solution, forming calcium carbonate solid, and discharging the residual flue gas from a flue gas outlet 7.
The foregoing describes in detail preferred embodiments of the present utility model. It should be understood that numerous modifications and variations can be made in accordance with the concepts of the utility model by one of ordinary skill in the art without undue burden. Therefore, all technical solutions which can be obtained by logic analysis, reasoning or limited experiments based on the prior art by the person skilled in the art according to the inventive concept shall be within the scope of protection defined by the claims.
Claims (8)
1. The utility model provides a carbon dioxide's entrapment device in flue gas, its characterized in that, including integrated into one piece's solution storage tank (1) and spray column (5), spray column (5) are located the top of solution storage tank (1), just solution storage tank (1) with the top lateral wall of spray column (5) is connected through solution pump (4), be equipped with acetic acid solution and fly ash in solution storage tank (1), flue gas entry (6) have been seted up to the lateral wall below of spray column (5), flue gas outlet (7) have been seted up at the top of spray column (5), be equipped with agitator (2) in solution storage tank (1), the both ends of solution pump (4) are connected with first pipeline (8) and second pipeline (9) respectively, the one end that solution pump (4) were kept away from is inserted in solution storage tank (1), the one end that solution pump (4) was kept away from second pipeline (9) is inserted the top lateral wall of spray column (5).
2. The device for capturing carbon dioxide in flue gas according to claim 1, wherein the concentration of the acetic acid solution is 1mol/L.
3. The device for capturing carbon dioxide in flue gas according to claim 1, wherein the solid-to-liquid ratio of the acetic acid solution is 40g/L.
4. The device for capturing carbon dioxide in flue gas according to claim 1, wherein the rotational speed of the stirrer (2) is 800-1500 rpm.
5. The device for capturing carbon dioxide in flue gas according to claim 1, wherein the fixed shaft of the stirrer (2) is connected to the bottom inner wall of the solution storage tank (1).
6. The device for capturing carbon dioxide in flue gas according to claim 1, wherein a cross beam (11) is arranged between the side walls of the solution storage tank (1), and the fixed shaft of the stirrer (2) is connected with the bottom of the cross beam (11).
7. A device for capturing carbon dioxide in flue gas according to claim 1, characterised in that the end of the second pipe (9) inserted into the upper side wall of the spray tower (5) is provided with a plurality of spray heads (10).
8. A device for capturing carbon dioxide in flue gas according to claim 7, characterised in that the spray head (10) is provided with three.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222866522.2U CN219682152U (en) | 2022-10-30 | 2022-10-30 | Carbon dioxide's entrapment device in flue gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222866522.2U CN219682152U (en) | 2022-10-30 | 2022-10-30 | Carbon dioxide's entrapment device in flue gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219682152U true CN219682152U (en) | 2023-09-15 |
Family
ID=87944277
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222866522.2U Active CN219682152U (en) | 2022-10-30 | 2022-10-30 | Carbon dioxide's entrapment device in flue gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219682152U (en) |
-
2022
- 2022-10-30 CN CN202222866522.2U patent/CN219682152U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |