CN220878297U - Trapping system for trapping low-concentration carbon dioxide - Google Patents
Trapping system for trapping low-concentration carbon dioxide Download PDFInfo
- Publication number
- CN220878297U CN220878297U CN202322425039.5U CN202322425039U CN220878297U CN 220878297 U CN220878297 U CN 220878297U CN 202322425039 U CN202322425039 U CN 202322425039U CN 220878297 U CN220878297 U CN 220878297U
- Authority
- CN
- China
- Prior art keywords
- carbon dioxide
- pipeline
- absorption
- concentration carbon
- capturing
- 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.)
- Active
Links
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 title claims abstract description 62
- 229910002092 carbon dioxide Inorganic materials 0.000 title claims abstract description 31
- 239000001569 carbon dioxide Substances 0.000 title claims abstract description 31
- 238000010521 absorption reaction Methods 0.000 claims abstract description 58
- 239000002002 slurry Substances 0.000 claims abstract description 26
- 238000003795 desorption Methods 0.000 claims abstract description 21
- 238000005406 washing Methods 0.000 claims abstract description 21
- 238000005507 spraying Methods 0.000 claims abstract description 17
- 238000005108 dry cleaning Methods 0.000 claims abstract description 10
- 239000007921 spray Substances 0.000 claims abstract description 5
- 239000007788 liquid Substances 0.000 claims description 22
- 239000002184 metal Substances 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 4
- 239000003595 mist Substances 0.000 claims description 4
- 238000012856 packing Methods 0.000 claims description 4
- 239000006096 absorbing agent Substances 0.000 claims description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract description 20
- 239000003546 flue gas Substances 0.000 abstract description 20
- 150000001412 amines Chemical class 0.000 abstract description 13
- 230000002745 absorbent Effects 0.000 abstract description 12
- 239000002250 absorbent Substances 0.000 abstract description 12
- 238000004064 recycling Methods 0.000 abstract description 3
- 239000002699 waste material Substances 0.000 abstract description 2
- 230000009471 action Effects 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 239000002803 fossil fuel Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- HZAXFHJVJLSVMW-UHFFFAOYSA-N 2-Aminoethan-1-ol Chemical compound NCCO HZAXFHJVJLSVMW-UHFFFAOYSA-N 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000010485 coping Effects 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000005431 greenhouse gas Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000009919 sequestration Effects 0.000 description 1
Landscapes
- Treating Waste Gases (AREA)
- Gas Separation By Absorption (AREA)
Abstract
The invention relates to the technical field of flue gas treatment, in particular to a trapping system for trapping low-concentration carbon dioxide. The invention discloses a trapping system for trapping low-concentration carbon dioxide, which comprises an absorption tower and a desorption tank; the absorption tower is internally provided with a slurry pool, an absorption layer, a first spray layer, a demister, a cold washing area, a dry cleaning area and an air outlet in sequence from bottom to top, the side wall of the absorption tower is provided with an air inlet, and the air inlet is positioned between the slurry pool and the absorption layer; one end of the analysis tank is communicated with the slurry tank through a first pipeline, the other end of the analysis tank is communicated with the first spraying layer through a second pipeline, a first conveying pump is arranged on the first pipeline, and a second conveying pump is arranged on the second pipeline. The trapping system can realize the absorption of low-concentration carbon dioxide and the desorption of the absorbent, can avoid the escape of amine in the absorbent, reduce the loss of the absorbent, realize the recycling of the absorbent and prevent waste.
Description
Technical Field
The invention relates to the technical field of flue gas treatment, in particular to a trapping system for trapping low-concentration carbon dioxide.
Background
Carbon dioxide (CO 2) is a major greenhouse gas, and the massive emission of CO 2 has a significant impact on our living environment and human health. The fossil fuel thermal power plant is a main emission source of CO 2, the amount of CO 2 emitted by the fossil fuel thermal power plant accounts for about 33-40% of the total emission, and the emission is relatively concentrated due to the large emission amount of CO 2, so that the control of the fossil fuel thermal power plant is easy to realize large-scale CO 2 emission reduction.
Generally, the higher the concentration of CO 2, the lower the energy consumption and cost of capture, and Carbon capture, utilization and sequestration (Utilization and Storage, abbreviated as CCUS) are one of the key technologies for coping with global climate change. The content of CO 2 in the flue gas of the power plant is low and is about 3-15% (volume fraction), and the corresponding thermodynamic driving force is lower, so that the energy consumption for capturing is higher. Aqueous monoethanolamine solutions (30% by mass) are commonly used in industry to capture CO 2, but the absorbent has problems of amine slip and no recycling, and serious absorbent loss. Therefore, how to reduce amine slip and absorber loss while efficiently and reversibly capturing low concentrations of CO 2 is a challenging challenge.
Disclosure of Invention
In order to solve the technical problems in the prior art, the invention provides a trapping system for trapping low-concentration carbon dioxide, which comprises an absorption tower and a desorption tank;
The absorption tower is internally provided with a slurry pool, an absorption layer, a first spraying layer, a demister, a cold washing area, a dry cleaning area and an air outlet from bottom to top in sequence, the side wall of the absorption tower is provided with an air inlet, and the air inlet is positioned between the slurry pool and the absorption layer;
One end of the analysis tank is communicated with the slurry pool through a first pipeline, the other end of the analysis tank is communicated with the first spraying layer through a second pipeline, a first conveying pump is arranged on the first pipeline, and a second conveying pump is arranged on the second pipeline.
Further, the trapping system for trapping the low-concentration carbon dioxide further comprises a vacuum pump and a heating device which are connected with the desorption tank.
Further, the demister is a ridge type demister.
Further, the absorption layer comprises a first absorption bed and a second absorption bed which are sequentially arranged from bottom to top.
Further, the first absorption bed and the second absorption bed are metal wire mesh packing or metal pore plate packing.
Further, the air outlet is positioned at the top of the absorption tower.
Further, the slurry tank further comprises a first liquid outlet arranged on the side wall of the absorption tower, and the first liquid outlet is communicated with the slurry tank and the first pipeline.
Further, the dry cleaning system also comprises a second spraying layer, wherein the second spraying layer is positioned between the cold washing area and the dry cleaning area.
Further, the absorption tower also comprises a second liquid outlet arranged on the side wall of the absorption tower, and the second liquid outlet is positioned between the demister and the cold washing zone.
Further, the second spraying layer is communicated with the second liquid outlet through a third pipeline, and a third conveying pump is arranged on the third pipeline.
Compared with the prior art, the utility model has the following technical effects:
The trapping system can realize the absorption of low-concentration carbon dioxide and the desorption of the absorbent, integrates the carbon dioxide absorption, dry cleaning and water washing into the same equipment-absorption tower, can avoid the escape of amine in the absorbent, reduce the loss of the absorbent, and simultaneously can realize the desorption of the absorbent by the desorption tank, realize the recycling of the absorbent and prevent waste.
Drawings
FIG. 1 shows a schematic configuration of a capturing system for capturing low concentration carbon dioxide according to the present utility model;
Reference numerals:
1. An absorption tower; 2. a slurry pool; 3. a first absorption bed; 4. a second absorption bed; 5. a first spray layer; 6. a demister; 7. a cold washing area; 8. a dry cleaning zone; 9. an air outlet; 10. an air inlet; 11. a desorption tank; 12. a first pipeline; 13. a second pipeline; 14. a first transfer pump; 15. a second transfer pump; 16. a vacuum pump; 17. a first liquid outlet; 18. a second spray layer; 19. a second liquid outlet; 20. a third pipeline; 21. and a third transfer pump.
Detailed Description
Further advantages and effects of the present invention will become apparent to those skilled in the art from the disclosure of the present specification, by describing the embodiments of the present invention with specific examples. While the description of the invention will be described in connection with the preferred embodiments, it is not intended to limit the inventive features to the implementation. Rather, the purpose of the invention described in connection with the embodiments is to cover other alternatives or modifications, which may be extended by the claims based on the invention. The following description contains many specific details for the purpose of providing a thorough understanding of the present invention. The invention may be practiced without these specific details. Furthermore, some specific details are omitted from the description in order to avoid obscuring the invention. It should be noted that, without conflict, the embodiments of the present invention and features of the embodiments may be combined with each other.
Referring to fig. 1, a capturing system for capturing low-concentration carbon dioxide comprises an absorption tower 1 and a desorption tank 11, wherein a slurry pool 2, an absorption layer, a first spraying layer 5, a demister 6, a cold washing zone 7, a dry cleaning zone 8 and an air outlet 9 are sequentially arranged in the absorption tower 1 from bottom to top, an air inlet 10 is arranged on the side wall of the absorption tower 1, and the air inlet 10 is positioned between the slurry pool 2 and the absorption layer; one end of the desorption tank 11 is communicated with the slurry pool 2 through a first pipeline 12, the other end of the desorption tank is communicated with the first spraying layer 5 through a second pipeline 13, a first conveying pump 14 is arranged on the first pipeline 12, and a second conveying pump 15 is arranged on the second pipeline 13.
The absorbent-amine slurry is placed in a desorption tank 11, is conveyed into a first spraying layer 5 through a second pipeline 13 under the action of a second conveying pump 15 to be sprayed out, falls through the absorption layer under the action of gravity, and the flue gas containing carbon dioxide enters the absorption tower 1 from an air inlet 10 under the action of a compressor, moves from bottom to top in the absorption tower 1, meets the absorbent-amine slurry when passing through the absorption layer, and the carbon dioxide in the flue gas is absorbed by the amine slurry; then, the amine slurry falls into the slurry tank 2 under the action of gravity, the residual flue gas continues to move upwards, the residual flue gas sequentially passes through the demister 6, the cold washing area 7 and the dry washing area 8, liquid drops in the flue gas are removed through the demister 6 respectively, volatile organic amine is absorbed through water washing in the cold washing area 7, water vapor in the flue gas is removed through the dry washing area 8, and the purified flue gas is finally discharged through the air outlet 9; the amine slurry in the slurry tank 2 enters the desorption tank 11 through the first pipeline 12 under the action of the first conveying pump 14, and enters the first spraying layer 5 through the second pipeline 13 under the action of the second conveying pump 15 after being desorbed so as to remove carbon dioxide in the flue gas, thereby realizing the circulating operation.
Optionally, the device also comprises a vacuum pump 16 and heating equipment which are connected with the desorption tank 11, and the desorption of the amine slurry is realized in a mode of combining heating and decompression, so that the desorption efficiency is improved, and the desorption effect is more thorough; the desorbed carbon dioxide is evacuated by the vacuum pump 16 and then discharged to an external storage tank.
Optionally, the mist eliminator 6 is a ridge mist eliminator to reduce entrainment and absorbent loss.
Optionally, the absorption layer comprises a first absorption bed 3 and a second absorption bed 4 which are sequentially arranged from bottom to top, and the carbon dioxide content in the flue gas is removed more thoroughly by arranging two absorption beds.
Optionally, the first absorption bed 3 and the second absorption bed 4 are acid-resistant wire mesh fillers or metal pore plate fillers, so that the contact area of the flue gas and the amine slurry is increased, the gas-liquid mass transfer efficiency is improved, and the carbon dioxide content in the flue gas is removed more thoroughly. Preferably 306L of acid metal.
Optionally, the air outlet 9 is positioned at the top of the absorption tower 1, so that purified flue gas is conveniently discharged.
Optionally, the apparatus further comprises a first liquid outlet 17 arranged on the side wall of the absorption tower 1, and the first liquid outlet 17 is communicated with the slurry tank 2 and the first pipeline 12.
Optionally, a second spraying layer 18 is further included, and the second spraying layer 18 is located between the cold washing area 7 and the dry washing area 8 and is used for spraying cold washing liquid to absorb volatile organic amine in the flue gas.
Optionally, the absorption tower further comprises a second liquid outlet 19 arranged on the side wall of the absorption tower 1, the second liquid outlet 19 is positioned between the demister 6 and the cold washing area 7, the second spraying layer 18 is communicated with the second liquid outlet 19 through a third pipeline 20, and a third conveying pump 21 is arranged on the third pipeline 20. The cold washing liquid absorbs the organic amine in the flue gas in the cold washing zone 7, and then circulates back to the second spraying layer 18 through the second liquid outlet 19 and the third pipeline 20 under the action of the third conveying pump 21.
The trapping system for trapping low-concentration carbon dioxide, disclosed by the utility model, integrates the functions of absorption, water washing and dry cleaning in one device, can realize the processes of absorbing low-concentration carbon dioxide in flue gas, water washing and absorbing volatile organic amine and dry cleaning the flue gas in the absorption tower 1, effectively reduces the occupied area of the device, reduces the equipment cost and the operation cost, can be widely applied to various flue gas purification, and has a great application prospect in the carbon trapping field.
The foregoing description of the preferred embodiments of the invention is not intended to limit the invention to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the invention are intended to be included within the scope of the invention.
Claims (10)
1. A capturing system for capturing low-concentration carbon dioxide, characterized by comprising an absorption tower and a desorption tank;
The absorption tower is internally provided with a slurry pool, an absorption layer, a first spraying layer, a demister, a cold washing area, a dry cleaning area and an air outlet from bottom to top in sequence, the side wall of the absorption tower is provided with an air inlet, and the air inlet is positioned between the slurry pool and the absorption layer;
One end of the desorption tank is communicated with the slurry pool through a first pipeline, the other end of the desorption tank is communicated with the first spraying layer through a second pipeline, a first conveying pump is arranged on the first pipeline, and a second conveying pump is arranged on the second pipeline.
2. The capture system for capturing low concentration carbon dioxide according to claim 1, further comprising a vacuum pump and a heating device connected to the desorption tank.
3. The capture system for capturing low concentration carbon dioxide of claim 1, wherein the mist eliminator is a ridge mist eliminator.
4. The capturing system for capturing low concentration carbon dioxide according to claim 1, wherein the absorption layer includes a first absorption bed and a second absorption bed which are disposed in order from bottom to top.
5. The capturing system for capturing low concentration carbon dioxide according to claim 4, wherein the first absorption bed and the second absorption bed are wire mesh packing or metal hole plate packing.
6. The capturing system for capturing low concentration carbon dioxide according to claim 1, wherein the gas outlet is located at the top of the absorption tower.
7. The capture system for capturing low concentration carbon dioxide according to claim 1, further comprising a first liquid outlet provided in a side wall of the absorber, the first liquid outlet communicating the slurry tank with the first pipe.
8. The capture system for capturing low concentration carbon dioxide of claim 1, further comprising a second spray layer located between the cold wash zone and the dry wash zone.
9. The capture system for capturing low concentration carbon dioxide of claim 8, further comprising a second liquid outlet provided to a side wall of the absorber, the second liquid outlet being located between the demister and cold wash zone.
10. The capturing system for capturing low concentration carbon dioxide according to claim 9, wherein the second spray layer is communicated with the second liquid outlet through a third pipeline, and a third delivery pump is provided on the third pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322425039.5U CN220878297U (en) | 2023-09-07 | 2023-09-07 | Trapping system for trapping low-concentration carbon dioxide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322425039.5U CN220878297U (en) | 2023-09-07 | 2023-09-07 | Trapping system for trapping low-concentration carbon dioxide |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220878297U true CN220878297U (en) | 2024-05-03 |
Family
ID=90875327
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322425039.5U Active CN220878297U (en) | 2023-09-07 | 2023-09-07 | Trapping system for trapping low-concentration carbon dioxide |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220878297U (en) |
-
2023
- 2023-09-07 CN CN202322425039.5U patent/CN220878297U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100490943C (en) | Apparatus for processing waste air including oxynitride | |
| KR101518477B1 (en) | Method and apparatus for capturing carbon dioxide in flue gas with activated sodium carbonate | |
| CN101422691B (en) | Multi-pollutant removing technique and device of fuel coal smoke | |
| CN106139850B (en) | Energy-efficient gas-liquid coupling oxidation SOx/NOx control device | |
| CN101708414B (en) | System and method for desulphurizing waste gas by cyclic absorption and application thereof | |
| CN201333374Y (en) | Device capable of collecting carbon dioxide contained in flue gases of power plant through ammonia by utilizing void tower | |
| CN101716458A (en) | System for trapping carbon dioxide in flue gas of coal-fired power plant and corresponding treatment method | |
| CN103143249B (en) | Method and device for capturing carbon dioxide in flue gas of power station boiler | |
| CN102266702A (en) | Method for capturing ammonia in industrial waste gas and equipment and application thereof | |
| CN113368683A (en) | Carbon dioxide capture system and method | |
| CN106540500A (en) | A kind of boiler waste gas treating device | |
| CN208449008U (en) | A kind of combined type organic waste-gas purification and recyclable device | |
| CN103961997A (en) | Process for recycling exhaust gas from ammonium metavanadate roasting furnace | |
| CN214693383U (en) | Chemical production ammonia-containing wastewater treatment device | |
| CN220878297U (en) | Trapping system for trapping low-concentration carbon dioxide | |
| CN217829547U (en) | Low-cost organic amine method flue gas carbon dioxide entrapment system | |
| CN201603511U (en) | Carbon dioxide trapping system in coal-fired power plant smoke | |
| CN217410281U (en) | Flue gas alcohol amine method decarbonization device system | |
| CN207928986U (en) | A kind of industrial waste gas improvement purification system | |
| CN215486191U (en) | Device system for capturing energy of carbon dioxide analysis tower by amine method | |
| CN211562407U (en) | VOCs adsorbs processing system | |
| CN201140031Y (en) | Apparatus for absorbing alkaline air in off-gas of copper liquid | |
| CN104307337A (en) | Method and system for catching and separating carbon dioxide in flue gas of hot blast stove | |
| CN210845883U (en) | VOCs processing system suitable for methyl alcohol filling station | |
| CN210934112U (en) | Carbon dioxide trapping device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |