CN114768512A - CO for efficiently trapping secondary aerosol of absorbent2Absorption tower - Google Patents
CO for efficiently trapping secondary aerosol of absorbent2Absorption tower Download PDFInfo
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- CN114768512A CN114768512A CN202210475543.3A CN202210475543A CN114768512A CN 114768512 A CN114768512 A CN 114768512A CN 202210475543 A CN202210475543 A CN 202210475543A CN 114768512 A CN114768512 A CN 114768512A
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- Prior art keywords
- absorbent
- absorption tower
- aerosol
- absorption
- spraying layer
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- 239000000443 aerosol Substances 0.000 title claims abstract description 38
- 238000010521 absorption reaction Methods 0.000 claims abstract description 80
- 239000002250 absorbent Substances 0.000 claims abstract description 65
- 230000002745 absorbent Effects 0.000 claims abstract description 60
- 239000007788 liquid Substances 0.000 claims abstract description 48
- 238000005507 spraying Methods 0.000 claims abstract description 39
- 230000005684 electric field Effects 0.000 claims abstract description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 12
- 238000001816 cooling Methods 0.000 claims abstract description 11
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000003546 flue gas Substances 0.000 claims abstract description 7
- 239000007921 spray Substances 0.000 claims abstract description 7
- 239000002699 waste material Substances 0.000 claims abstract description 4
- 238000003795 desorption Methods 0.000 claims description 9
- 238000007872 degassing Methods 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 6
- 239000003595 mist Substances 0.000 claims description 4
- 239000006096 absorbing agent Substances 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 7
- 238000004064 recycling Methods 0.000 abstract description 2
- 240000002853 Nelumbo nucifera Species 0.000 abstract 1
- 235000006508 Nelumbo nucifera Nutrition 0.000 abstract 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 abstract 1
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 10
- 229910002092 carbon dioxide Inorganic materials 0.000 description 9
- 239000001569 carbon dioxide Substances 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000002803 fossil fuel Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000005431 greenhouse gas Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/77—Liquid phase processes
- B01D53/78—Liquid phase processes with gas-liquid contact
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/62—Carbon oxides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/96—Regeneration, reactivation or recycling of reactants
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
- B03C3/017—Combinations of electrostatic separation with other processes, not otherwise provided for
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/50—Carbon oxides
- B01D2257/504—Carbon dioxide
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
- B01D2258/0283—Flue gases
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention discloses a method for efficiently trapping CO in secondary aerosol of an absorbent2Absorption tower, including absorption tower, aerosol removal device, absorbent storage tank, absorbent circulation system, supreme multistage heat exchanger cooling section, the second grade absorption liquid that is equipped with in proper order sprays layer, elementary defroster from bottom to top in the absorption tower, aerosol removal device is equipped with second air inlet, lotus electric water fog section, sprays board-like wet-type electric field, high-efficient defroster and second export in proper order along flue gas treatment direction, and the first export of absorption tower links to each other with aerosol removal device's second air inlet, the absorbent storage tank sprays the layer through conveying system and second grade absorption liquid and is connected, aerosol removal device's waste liquid export and second inletThe absorbent circulating system is connected with the second-stage absorption liquid spraying layer through the absorbent circulating system. The absorption tower realizes the efficient trapping and recycling of the absorbent aerosol, effectively improves the utilization rate of the absorbent and reduces the cost.
Description
[ technical field ] A
The invention relates to the technical field of pollution treatment, in particular to a method for efficiently trapping CO in secondary aerosol of an absorbent2The technical field of absorption towers.
[ background ] A method for producing a semiconductor device
Carbon dioxide is one of the main components of greenhouse gases that contribute to global warming, and causes many environmental problems, and therefore carbon dioxide capture technology has been the focus of attention in the world. The carbon dioxide mainly originates from the combustion of fossil fuels such as coal, petroleum, natural gas and the like, the existing carbon dioxide trapping device only adopts a spraying device and a demisting device to trap the carbon dioxide and does not recycle the absorbent, the aerosol removal efficiency is low, the environment is polluted, a large amount of absorbent is wasted, the economy is influenced, and the CO efficiently trapping the secondary aerosol of the absorbent is provided2An absorption tower.
[ summary of the invention ]
The invention aims to solve the problems in the prior art and provides a method for efficiently trapping CO in secondary aerosol of an absorbent2In the absorption tower, the absorbent aerosol can be efficiently trapped and recycled, the utilization rate of the absorbent is effectively improved, and the cost is reduced.
In order to achieve the aim, the invention provides a method for efficiently trapping CO in secondary aerosol of an absorbent2The absorption tower comprises an absorption tower body, a degassing sol device, an absorbent storage tank and an absorbent circulating system, wherein a first air inlet is formed in the absorption tower body, a rich liquid outflow port is formed in the bottom of the absorption tower body, a first outlet is formed in the top of the absorption tower body, and a plurality of absorption towers are sequentially arranged in the absorption tower body from bottom to topThe device comprises a cooling section of a stage heat exchanger, a secondary absorption liquid spraying layer and a primary demister, wherein a second air inlet, a charged water mist section, a plurality of continuous spraying plate type wet electric fields, a high-efficiency demister and a second outlet are sequentially arranged in the aerosol removing device along the flue gas treatment direction, the first outlet of an absorption tower is connected with the second air inlet of the aerosol removing device, an absorbent storage tank is connected with the secondary absorption liquid spraying layer through a conveying system, and a waste liquid outlet of the aerosol removing device is connected with an absorbent circulating system and is connected with the secondary absorption liquid spraying layer through the absorbent circulating system.
Preferably, the secondary absorption liquid spraying layer comprises a first absorption liquid spraying layer and a second absorption liquid spraying layer which are sequentially arranged from bottom to top, the first absorption liquid spraying layer is communicated with the absorbent storage tank through a conveying system, and the second absorption liquid spraying layer is connected with a liquid outlet of the absorbent circulating system.
Preferably, the system further comprises a thermal desorption treatment system, and the rich liquid flowing out of the rich liquid outlet of the absorption tower is subjected to thermal desorption treatment by the thermal desorption treatment system and then replenished to the absorbent storage tank.
Preferably, the cooling section of the multi-stage heat exchanger adopts a cooling section of a second-stage heat exchanger.
Preferably, two continuous spray plate type wet electric fields are arranged in the sol removing device.
Preferably, a water collecting tank is arranged at the bottom of each continuous spraying plate type wet electric field, and the water collecting tank is connected with an inlet of the absorbent circulating system.
The invention has the beneficial effects that: the invention realizes the efficient trapping and recycling of the absorbent aerosol by the cooperation of the absorption tower, the aerosol removing device, the absorbent storage tank, the absorbent circulating system and the like, effectively improves the utilization rate of the absorbent and reduces the cost. And the absorbent of the absorption tower can be properly sprayed in excess to improve CO2Absorption and collection efficiency.
The features and advantages of the present invention will be described in detail by embodiments in conjunction with the accompanying drawings.
[ description of the drawings ]
FIG. 1 shows that the invention is a high-efficiency CO trapping absorbent secondary aerosol2The structure of the absorption tower is shown schematically.
[ detailed description ] A
Referring to fig. 1, the invention is a high-efficiency capturing absorbent secondary aerosol CO2The absorption tower comprises an absorption tower 10, a degassing sol device 20, an absorbent storage tank 30 and an absorbent circulating system 40, wherein a first air inlet 11 is arranged on the absorption tower 10, a rich liquid outlet 12 is arranged at the bottom, a first outlet 13 is arranged at the top, a multistage heat exchanger cooling section 1, a secondary absorption liquid spraying layer 2 and a primary demister 3 are sequentially arranged in the absorption tower 10 from bottom to top, the degassing sol device 20 is sequentially provided with a second air inlet 21, a charged water mist section 4, a plurality of continuous spraying plate type wet electric fields 5, a high-efficiency demister 6 and a second outlet 22 along the flue gas treatment direction, the first outlet 13 of the absorption tower 10 is connected with the second air inlet 21 of the degassing sol device 20, the absorbent storage tank 30 is connected with the secondary absorption liquid spraying layer 2 through a conveying system 31, and a waste liquid outlet of the degassing sol device 20 is connected with the absorbent circulating system 40, the secondary absorption liquid spraying layer 2 is connected in through an absorbent circulating system 40.
Further, the secondary absorption liquid spraying layer 2 comprises a plurality of layers of first absorption liquid spraying layers and a plurality of layers of second absorption liquid spraying layers which are sequentially arranged from bottom to top, the first absorption liquid spraying layers are communicated with the absorbent storage tank 30 through a conveying system 31, and the second absorption liquid spraying layers are connected with a liquid outlet of the absorbent circulating system 40.
The system further comprises a heating desorption treatment system, wherein the rich liquid flowing out of the rich liquid outlet 12 of the absorption tower 10 is subjected to heating desorption treatment by the heating desorption treatment system and then is supplemented to the absorbent storage tank 30.
Further, the cooling section 1 of the multi-stage heat exchanger adopts a cooling section of a second-stage heat exchanger.
Furthermore, two continuous spray plate type wet electric fields 5 are arranged in the aerosol removing device 20.
Further, a water collecting tank 51 is provided at the bottom of each continuous spray plate type wet electric field 5, and the water collecting tank 51 is connected with the inlet of the absorbent circulating system 40.
The working process of the invention is as follows:
containing CO2The flue gas enters the absorption tower through a first gas inlet 11, contacts with an absorbent and is absorbed in the process of passing through the absorption tower 10 from bottom to top, the absorption process is an exothermic reaction, and the optimal reaction temperature range (within 45 ℃) of the absorption tower 1 is maintained through a secondary heat exchanger cooling section; the flue gas absorbs CO through the secondary absorption liquid spraying layer 22After the primary demister 3 demists, the secondary aerosol carrying part of the non-trapped absorbent enters the aerosol removing device 20, and because the particle size of the non-trapped absorbent aerosol is very small and most of the non-trapped absorbent aerosol is less than 2.5 microns, the aerosol and the fog drops are promoted to agglomerate and grow through the charged water mist section 4, so that subsequent electrostatic removal is facilitated; the agglomerated and grown aerosol particles enter two continuous spraying plate type wet electric fields 5 to be efficiently trapped, then are demisted by a high-efficiency demister 6 and then are discharged as clean flue gas, wastewater generated by the continuous spraying plate type wet electric fields 5 is collected in a water collecting tank 51 and then is recycled to an absorption tower 10 for secondary spraying after being collected, and the absorbent is recycled; spraying the new absorption liquid through the upper first absorption liquid spraying layer, and spraying the circulating absorption liquid through the lower second absorption liquid spraying layer; the rich solution flowing out of the bottom of the absorption tower 10 is heated and desorbed and then supplied to the absorbent storage tank 30, and is sprayed to the upper layer of the absorption tower as a new absorption solution. For the absorption tower, the absorbent can be suitably sprayed in excess to increase CO2The absorption and collection efficiency is high, the absorbent aerosol can be efficiently collected and recycled, the utilization rate of the absorbent is effectively improved, and the cost is reduced.
The above embodiments are illustrative of the present invention, and are not intended to limit the present invention, and any simple modifications of the present invention are within the scope of the present invention.
Claims (6)
1. CO for efficiently trapping secondary aerosol of absorbent2Absorption tower, its characterized in that: comprises an absorption tower (10), a sol degassing device (20), an absorbent storage tank (30) and an absorbent circulating system (40), wherein the absorption tower (10) is provided with a first air inlet (11),a rich liquid outlet (12) is arranged at the bottom, a first outlet (13) is arranged at the top, a multi-stage heat exchanger cooling section (1), a secondary absorption liquid spraying layer (2) and a primary demister (3) are sequentially arranged in the absorption tower (10) from bottom to top, the aerosol removing device (20) is sequentially provided with a second air inlet (21), a charged water mist section (4), a plurality of continuous spraying plate type wet electric fields (5), a high-efficiency demister (6) and a second outlet (22) along the flue gas treatment direction, the first outlet (13) of the absorption tower (10) is connected with the second air inlet (21) of the aerosol removing device (20), the absorbent storage tank (30) is connected with the secondary absorption liquid spraying layer (2) through a conveying system (31), the waste liquid outlet of the aerosol removing device (20) is connected with an absorbent circulating system (40), the second-stage absorption liquid spraying layer (2) is connected in through an absorbent circulating system (40).
2. A high efficiency CO capture absorbent secondary aerosol as claimed in claim 12Absorption tower, its characterized in that: the second-stage absorption liquid spraying layer (2) comprises a first absorption liquid spraying layer and a second absorption liquid spraying layer which are sequentially arranged from bottom to top, the first absorption liquid spraying layer is communicated with the absorbent storage tank (30) through a conveying system (31), and the second absorption liquid spraying layer is connected with a liquid outlet of the absorbent circulating system (40).
3. A high efficiency CO capture absorbent secondary aerosol as claimed in claim 12Absorption tower, its characterized in that: the device also comprises a heating desorption treatment system, wherein the rich liquid flowing out of the rich liquid outlet (12) of the absorption tower (10) is supplemented to the absorbent storage tank (30) after being subjected to heating desorption treatment by the heating desorption treatment system.
4. A high efficiency CO capture absorbent secondary aerosol as claimed in claim 12Absorption tower, its characterized in that: the multistage heat exchanger cooling section (1) adopts a two-stage heat exchanger cooling section.
5. A high efficiency CO capture absorbent secondary aerosol as claimed in claim 12Absorption tower ofIs characterized in that: two continuous spraying plate type wet electric fields (5) are arranged in the aerosol removing device (20).
6. A high efficiency CO capture absorber secondary aerosol as claimed in claim 12Absorption tower, its characterized in that: the bottom of each continuous spray plate type wet electric field (5) is provided with a water collecting tank (51), and the water collecting tank (51) is connected with the inlet of the absorbent circulating system (40).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210475543.3A CN114768512A (en) | 2022-04-29 | 2022-04-29 | CO for efficiently trapping secondary aerosol of absorbent2Absorption tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210475543.3A CN114768512A (en) | 2022-04-29 | 2022-04-29 | CO for efficiently trapping secondary aerosol of absorbent2Absorption tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114768512A true CN114768512A (en) | 2022-07-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210475543.3A Pending CN114768512A (en) | 2022-04-29 | 2022-04-29 | CO for efficiently trapping secondary aerosol of absorbent2Absorption tower |
Country Status (1)
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| CN (1) | CN114768512A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117211743A (en) * | 2023-11-03 | 2023-12-12 | 中国石油大学(华东) | CO 2 Automatic circulation trapping and reinjection skid-mounted device and method for produced gas in oil displacement and storage process |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPWO2011152550A1 (en) * | 2010-05-31 | 2013-08-01 | 三菱重工業株式会社 | Exhaust gas treatment system and method |
| CN111632760A (en) * | 2020-05-19 | 2020-09-08 | 浙江菲达环保科技股份有限公司 | SO strengthening method based on charged water mist phase change3Device for removing agglomeration |
| CN113680178A (en) * | 2021-08-19 | 2021-11-23 | 浙江菲达环保科技股份有限公司 | CO discharged by extremely low secondary aerosol2Trapping device |
| CN113996152A (en) * | 2021-10-25 | 2022-02-01 | 浙江菲达环保科技股份有限公司 | For CO2Secondary aerosol high-efficiency trapping device of absorption tower |
| CN114345098A (en) * | 2022-01-10 | 2022-04-15 | 浙江大学嘉兴研究院 | CO (carbon monoxide)2Method and system for trapping absorbent decomposition inhibition and efficient pollution reduction |
-
2022
- 2022-04-29 CN CN202210475543.3A patent/CN114768512A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPWO2011152550A1 (en) * | 2010-05-31 | 2013-08-01 | 三菱重工業株式会社 | Exhaust gas treatment system and method |
| CN111632760A (en) * | 2020-05-19 | 2020-09-08 | 浙江菲达环保科技股份有限公司 | SO strengthening method based on charged water mist phase change3Device for removing agglomeration |
| CN113680178A (en) * | 2021-08-19 | 2021-11-23 | 浙江菲达环保科技股份有限公司 | CO discharged by extremely low secondary aerosol2Trapping device |
| CN113996152A (en) * | 2021-10-25 | 2022-02-01 | 浙江菲达环保科技股份有限公司 | For CO2Secondary aerosol high-efficiency trapping device of absorption tower |
| CN114345098A (en) * | 2022-01-10 | 2022-04-15 | 浙江大学嘉兴研究院 | CO (carbon monoxide)2Method and system for trapping absorbent decomposition inhibition and efficient pollution reduction |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117211743A (en) * | 2023-11-03 | 2023-12-12 | 中国石油大学(华东) | CO 2 Automatic circulation trapping and reinjection skid-mounted device and method for produced gas in oil displacement and storage process |
| CN117211743B (en) * | 2023-11-03 | 2024-01-16 | 中国石油大学(华东) | CO 2 Automatic circulation trapping and reinjection skid-mounted device and method for produced gas in oil displacement and storage process |
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Application publication date: 20220722 |