CN117547948A - Recycling carbon capturing system based on wet electrostatic precipitator - Google Patents
Recycling carbon capturing system based on wet electrostatic precipitator Download PDFInfo
- Publication number
- CN117547948A CN117547948A CN202311371796.7A CN202311371796A CN117547948A CN 117547948 A CN117547948 A CN 117547948A CN 202311371796 A CN202311371796 A CN 202311371796A CN 117547948 A CN117547948 A CN 117547948A
- Authority
- CN
- China
- Prior art keywords
- wet electrostatic
- electrostatic precipitator
- ammonia water
- communicated
- tank
- 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.)
- Pending
Links
- 239000012719 wet electrostatic precipitator Substances 0.000 title claims abstract description 52
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 23
- 229910052799 carbon Inorganic materials 0.000 title claims abstract description 23
- 238000004064 recycling Methods 0.000 title claims abstract description 21
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 claims abstract description 49
- 235000011114 ammonium hydroxide Nutrition 0.000 claims abstract description 49
- 239000007788 liquid Substances 0.000 claims abstract description 45
- 238000002425 crystallisation Methods 0.000 claims abstract description 24
- 230000008025 crystallization Effects 0.000 claims abstract description 24
- 238000000926 separation method Methods 0.000 claims abstract description 21
- 230000033558 biomineral tissue development Effects 0.000 claims abstract description 17
- 239000000428 dust Substances 0.000 claims abstract description 17
- 238000001556 precipitation Methods 0.000 claims abstract description 17
- 238000006243 chemical reaction Methods 0.000 claims abstract description 15
- 238000006477 desulfuration reaction Methods 0.000 claims abstract description 15
- 230000023556 desulfurization Effects 0.000 claims abstract description 15
- 238000000034 method Methods 0.000 claims abstract description 15
- 229910052602 gypsum Inorganic materials 0.000 claims abstract description 14
- 239000010440 gypsum Substances 0.000 claims abstract description 14
- 238000003860 storage Methods 0.000 claims abstract description 8
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 37
- 239000003546 flue gas Substances 0.000 claims description 37
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 32
- 238000003756 stirring Methods 0.000 claims description 29
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 22
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 16
- 239000001569 carbon dioxide Substances 0.000 claims description 16
- 230000005684 electric field Effects 0.000 claims description 16
- 238000004062 sedimentation Methods 0.000 claims description 16
- 239000007921 spray Substances 0.000 claims description 15
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 claims description 14
- 229910052921 ammonium sulfate Inorganic materials 0.000 claims description 14
- 235000011130 ammonium sulphate Nutrition 0.000 claims description 14
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 11
- 239000012535 impurity Substances 0.000 claims description 11
- 239000000725 suspension Substances 0.000 claims description 6
- 238000010521 absorption reaction Methods 0.000 claims description 5
- 238000005260 corrosion Methods 0.000 claims description 4
- 239000002245 particle Substances 0.000 claims description 4
- 239000013078 crystal Substances 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 230000001376 precipitating effect Effects 0.000 claims description 3
- 238000005086 pumping Methods 0.000 claims description 3
- 238000005507 spraying Methods 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 abstract description 18
- 238000005261 decarburization Methods 0.000 abstract description 5
- 230000008569 process Effects 0.000 abstract description 5
- 239000003054 catalyst Substances 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 6
- 239000007789 gas Substances 0.000 description 4
- 229910021529 ammonia Inorganic materials 0.000 description 3
- 230000001089 mineralizing effect Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonium chloride Substances [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005262 decarbonization Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000004537 pulping Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 230000009919 sequestration Effects 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
Classifications
-
- 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
- B03C3/02—Plant or installations having external electricity supply
- B03C3/16—Plant or installations having external electricity supply wet type
-
- 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
- B01D53/32—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 by electrical effects other than those provided for in group B01D61/00
- B01D53/323—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 by electrical effects other than those provided for in group B01D61/00 by electrostatic effects or by high-voltage electric fields
-
- 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
- B01D53/48—Sulfur compounds
- B01D53/50—Sulfur oxides
- B01D53/501—Sulfur oxides by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound
- B01D53/502—Sulfur oxides by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound characterised by a specific solution or suspension
-
- 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
- B01D53/74—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
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01C—AMMONIA; CYANOGEN; COMPOUNDS THEREOF
- C01C1/00—Ammonia; Compounds thereof
- C01C1/24—Sulfates of ammonium
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F11/00—Compounds of calcium, strontium, or barium
- C01F11/18—Carbonates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/20—Reductants
- B01D2251/206—Ammonium compounds
- B01D2251/2062—Ammonia
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/30—Sulfur compounds
- B01D2257/302—Sulfur oxides
-
- 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
-
- 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
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Environmental & Geological Engineering (AREA)
- Organic Chemistry (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Biomedical Technology (AREA)
- Health & Medical Sciences (AREA)
- Inorganic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Treating Waste Gases (AREA)
- Electrostatic Separation (AREA)
Abstract
The invention discloses a recycling carbon capturing system based on a wet electrostatic dust collector, which comprises the wet electrostatic dust collector, an ammonia water supply unit, a mineralization unit and a crystallization unit, wherein the wet electrostatic dust collector is communicated with an ammonia water storage tank of the ammonia water supply unit through a liquid inlet, a liquid outlet of the wet electrostatic dust collector is communicated with a purifier of the mineralization unit, and the mineralization unit is stirredThe tank is communicated with a precipitation separation tank of the crystallization unit. The recycling carbon capturing system based on the wet electrostatic precipitator with the structure can effectively realize desulfurization gypsum and CO 2 Is capable of cooperatively meeting SO (sulfur dioxide) and reducing emission and recycling utilization 2 The near zero emission of the catalyst has small occupied area, simple process flow, higher reaction efficiency and low decarburization cost, and is beneficial to large-scale application.
Description
Technical Field
The invention relates to the technical field of flue gas purification and solid waste recycling, in particular to a recycling carbon capturing system based on a wet electrostatic precipitator.
Background
The large amount of carbon dioxide gas emission causes the climate change to be aggravated, causes a series of environmental and social problems such as global climate warming and the like, threatens the sustainable development of human society, and reduces CO 2 Has become a global concern. Carbon dioxide capture, utilization and sequestration technology (CCUS) is one technique for CO reduction 2 Comprehensive technology of emission can realize CO 2 The resource utilization has certain economic value and practical significance. CO 2 Mineralization is CO 2 One of the important ways of recycling, through minerals and CO 2 Chemical reaction is carried out to produce high added value products with good stability and no harm to the environment so as to realize CO 2 Is effectively utilized.
Patent CN114702056a proposes a method for absorbing carbon dioxide from tail gas of a power plant by using desulfurization gypsum, pulping the desulfurization gypsum by using an ammonia water solution, fully contacting carbon dioxide gas emitted after desulfurization and denitrification of the power plant to absorb and mineralize carbon dioxide, filtering generated calcium carbonate and ammonium sulfate to obtain a nano calcium carbonate product and an ammonium sulfate solution, and crystallizing the solution to obtain ammonium sulfate. However, the ammonia escape phenomenon of the method is serious, the ammonia concentration of the tail gas is easy to exceed the standard, equipment corrosion and secondary pollution are easy to cause, in addition, the method has the advantages of limited reactant mixing degree, slower absorption rate, larger device size and larger occupied area.
In view of the foregoing, there are still many drawbacks in the existing desulfurization gypsum mineralized carbon dioxide system and method, such as relatively large modification, high initial investment cost, relatively slow mineralization rate of desulfurization gypsum mineralized carbon dioxide, relatively large equipment size and large occupied area, and there is a need for a new system and method to solve the above-mentioned problems.
Disclosure of Invention
Objects of the inventionThe utility model provides a recycling carbon capture system based on a wet electrostatic precipitator, which can effectively realize desulfurization gypsum and CO 2 Is capable of cooperatively meeting SO (sulfur dioxide) and reducing emission and recycling utilization 2 The near zero emission of the catalyst has small occupied area, simple process flow, higher reaction efficiency and low decarburization cost, and is beneficial to large-scale application.
In order to achieve the above purpose, the invention provides a recycling carbon capturing system based on a wet electrostatic precipitator, which comprises the wet electrostatic precipitator, an ammonia water supply unit, a mineralization unit and a crystallization unit, wherein the wet electrostatic precipitator is communicated with an ammonia water storage tank of the ammonia water supply unit through a liquid inlet, a liquid outlet of the wet electrostatic precipitator is communicated with a purifier of the mineralization unit, and a stirring tank of the mineralization unit is communicated with a precipitation separation tank of the crystallization unit.
Preferably, the wet electrostatic precipitator is inside to be equipped with liquid receiving disc, electric field area, shower nozzle and defroster from bottom to top in proper order, is equipped with the flue gas entry between liquid receiving disc and the electric field area, is equipped with carbon dioxide absorption area between electric field area and the defroster, and wet electrostatic precipitator top is equipped with the flue gas export, and electric field area department interval is equipped with negative pole line and anode plate.
Preferably, the mineralizing unit comprises a purifier, a first conveying pump, a stirring tank and a second conveying pump, the liquid receiving disc is communicated with the purifier through a liquid outlet, the purifier is communicated with the stirring tank through the first conveying pump, and the stirring tank is communicated with the sedimentation separation tank through the second conveying pump.
Preferably, the crystallization unit comprises a sedimentation separation tank, a third conveying pump and a crystallization sedimentation tank, and the sedimentation separation tank is communicated with the crystallization sedimentation tank through the third conveying pump.
Preferably, the demister is one of a wire mesh demister and a ridge type demister.
Preferably, the ammonia water storage tank is communicated with the liquid inlet through an ammonia water delivery pump, a plurality of spray heads are uniformly arranged on a liquid inlet pipe communicated with the liquid inlet, and the spray heads are made of stainless steel anti-corrosion materials.
Preferably, the liquid receiving plate is one of funnel-shaped or bowl-shaped.
Preferably, a pH sensor is arranged in the stirring tank.
The application method of the recycling carbon capturing system based on the wet electrostatic precipitator comprises the following steps:
s1, starting an ammonia water conveying pump, conveying an ammonia water solution to a spray head for spraying, and uniformly distributing a film on an anode plate by the sprayed ammonia water solution;
s2, enabling flue gas after wet desulfurization to enter a wet electrostatic precipitator through a flue gas inlet, and enabling CO in the flue gas to enter the wet electrostatic precipitator 2 And residual SO 2 The dust in the flue gas is charged and migrates to the anode plate under the high-voltage discharge effect of the cathode line in the electric field area;
s3, collecting dust flushed down on the anode plate by the liquid receiving disc and absorbing CO 2 And SO 2 The decarbonized flue gas is discharged out of the wet electrostatic precipitator through the flue gas outlet;
s4, absorbing CO 2 And SO 2 Removing particle impurities from the ammonia water solution after the removal of the impurities in a purifier, conveying the solution after the removal of the impurities to a stirring tank through a first conveying pump, and adding desulfurized gypsum into the stirring tank for full reaction to obtain a suspension containing calcium carbonate and ammonium sulfate;
s5, pumping the suspension liquid in the stirring tank into a precipitation separation tank by a second conveying pump, precipitating and discharging calcium carbonate in the precipitation separation tank, and crystallizing the upper layer solution into a crystallization precipitation tank by a third conveying pump to obtain ammonium sulfate crystals.
Therefore, the recycling carbon capturing system based on the wet electrostatic precipitator with the structure has the beneficial effects that:
1. the method provided by the invention is to firstly absorb CO by ammonia water solution 2 Subsequently using desulfurized gypsum slurry with CO absorption 2 The ammonia water solution after the reaction is subjected to liquid phase reaction, so that the reaction rate is high, and the reaction efficiency is high;
2. the invention can effectively realize desulfurization of gypsum and CO 2 Is reduced in emission and resource utilization, and simultaneously, small amount of SO remained in the flue gas after wet desulfurization 2 (concentration)<35mg/m 3 ) Can be further absorbed by ammonia water solution in the wet electrostatic precipitator, thereby synergistically meeting SO 2 Near zero emissions of (2)Requirements;
3. the trapping system provided by the invention has the advantages of simple process, low investment cost, good economy, no need of large-scale reconstruction of the existing flue gas purifying device, small equipment volume, high utilization rate and simple process flow, so that the decarbonization cost is low, and the large-scale application is facilitated.
The technical scheme of the invention is further described in detail through the drawings and the embodiments.
Drawings
FIG. 1 is a flow chart of a recycling carbon capturing system based on a wet electrostatic precipitator.
Reference numerals
1. Wet electrostatic dust collector; 11. a liquid receiving disc; 12. a cathode line; 13. an anode plate; 14. a demister; 15. a spray head; 16. a flue gas inlet; 17. a flue gas outlet; 2. an ammonia water supply unit; 21. an ammonia water delivery pump; 22. an ammonia water storage tank; 3. a mineralization unit; 31. a purifier; 32. a first transfer pump; 33. a stirring pool; 34. a second transfer pump; 4. a crystallization unit; 41. a sedimentation separation tank; 42. a third transfer pump; 43. and (5) a crystallization sedimentation tank.
Detailed Description
The technical scheme of the invention is further described below through the attached drawings and the embodiments.
Unless defined otherwise, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The terms "first," "second," and the like, as used herein, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that elements or items preceding the word are included in the element or item listed after the word and equivalents thereof, but does not exclude other elements or items. The terms "connected" or "connected," and the like, are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", etc. are used merely to indicate relative positional relationships, which may also be changed when the absolute position of the object to be described is changed.
Example 1
Fig. 1 is a flow chart of a recycling carbon capturing system based on a wet electrostatic precipitator, and as shown in fig. 1, the recycling carbon capturing system based on the wet electrostatic precipitator comprises a wet electrostatic precipitator 1, an ammonia water supply unit 2, a mineralization unit 3 and a crystallization unit 4, wherein the wet electrostatic precipitator 1 is communicated with an ammonia water storage tank 22 of the ammonia water supply unit 2 through a liquid inlet, a liquid outlet of the wet electrostatic precipitator 1 is communicated with a purifier 31 of the mineralization unit 3, and a stirring tank 33 of the mineralization unit 3 is communicated with a precipitation separation tank 41 of the crystallization unit 4.
The wet electrostatic precipitator 1 carries out dust removal, decarburization and further desulfurization treatment on the desulfurization flue gas, and the ammonia water supply unit 2 provides an ammonia water solution for the wet electrostatic precipitator 1, so that carbon dioxide and residual sulfur dioxide in the flue gas are conveniently absorbed, and emission reduction of carbon dioxide and near zero emission of sulfur dioxide are realized. The mineralizing unit 3 is used for providing the reaction of the desulfurized gypsum and the ammonia water solution after absorbing carbon dioxide and sulfur dioxide, and the crystallization unit 4 is used for separating and collecting calcium carbonate and ammonium sulfate respectively.
The wet electrostatic precipitator 1 is inside to be equipped with liquid receiving disk 11, electric field area, shower nozzle 15 and defroster 14 in proper order from bottom to top, is equipped with flue gas entry 16 between liquid receiving disk 11 and the electric field area, is equipped with the carbon dioxide absorption district between electric field area and the defroster 14, and wet electrostatic precipitator 1 top is equipped with flue gas export 17, and electric field district department interval is equipped with negative pole line 12 and anode plate 13.
When the flue gas flows in the wet electrostatic precipitator 1, dust charges in the flue gas in the electric field region migrate to the anode plate 13 and are enriched on the anode plate 13. The flue gas inlet 16 is positioned above the liquid receiving disc 11, and the liquid receiving disc 11 is positioned below the wet electrostatic precipitator 1 and is used for receiving and absorbing CO 2 And SO 2 The ammonia solution and dust particles flushed down the anode plate 13. The spray heads 15 are uniformly arranged to spray ammonia water solution on all anode plates 13, so that dust on the anode plates 13 is flushed onto the liquid receiving disc 11, and simultaneously, the ammonia water solution absorbs carbon dioxide and sulfur dioxide in the flue gas, and the treatment is completedAnd leaves the wet electrostatic precipitator 1 via a flue gas outlet 17.
The mineralizing unit 3 comprises a purifier 31, a first conveying pump 32, a stirring tank 33 and a second conveying pump 34, the liquid receiving disc 11 is communicated with the purifier 31 through a liquid outlet, the purifier 31 is communicated with the stirring tank 33 through the first conveying pump 32, and the stirring tank 33 is communicated with the precipitation separation tank 41 through the second conveying pump 34. The purifier 31 will absorb CO 2 And SO 2 The granular impurities in the ammonia water solution are removed, the solution after the impurity removal is conveyed to a stirring tank 33 by a first conveying pump 32, and the desulfurized gypsum is added into the stirring tank 33 for continuous reaction to obtain calcium carbonate and ammonium sulfate.
The crystallization unit 4 includes a sedimentation separation tank 41, a third transfer pump 42, and a crystallization sedimentation tank 43, and the sedimentation separation tank 41 is communicated with the crystallization sedimentation tank 43 through the third transfer pump 42. The precipitation separation tank 41 separates calcium carbonate from the ammonium sulfate solution after precipitation, and the third transfer pump 42 transfers the ammonium sulfate solution to the crystallization precipitation tank 43 to obtain crystallized ammonium sulfate.
The demister 14 is one of a wire mesh demister and a ridge type demister, and the demister 14 is used for demisting the flue gas after decarburization and dust removal and recycling escaped ammonia.
The ammonia water storage tank 22 is communicated with the liquid inlet through the ammonia water delivery pump 21, a plurality of spray heads 15 are uniformly arranged on a liquid inlet pipe communicated with the liquid inlet, and the spray heads 15 are made of stainless steel anti-corrosion materials. The ammonia water delivery pump 21 delivers the ammonia water solution in the ammonia water tank 22 to the spray head 15, and the spray head 15 sprays the ammonia water solution for absorbing carbon dioxide and remaining sulfur dioxide while flushing dust on the anode plate 13.
The liquid receiving plate 11 is in a funnel shape or a bowl shape, the bottom of the liquid receiving plate 11 is communicated with a liquid outlet, and ammonia water solution after absorbing carbon dioxide and sulfur dioxide leaves the liquid receiving plate 11 under the action of gravity.
A pH sensor is provided in the stirring tank 33 for measuring the pH value in the stirring tank 33 and determining the reaction degree of the mineralization reaction in the stirring tank 33.
Example 2
The application method of the recycling carbon capturing system based on the wet electrostatic precipitator comprises the following steps:
s1, starting an ammonia water conveying pump, conveying an ammonia water solution to a spray head for spraying, and uniformly distributing a film on an anode plate by the sprayed ammonia water solution;
s2, enabling flue gas after wet desulfurization to enter a wet electrostatic precipitator through a flue gas inlet, and enabling CO in the flue gas to enter the wet electrostatic precipitator 2 And residual SO 2 The dust in the flue gas is charged and migrates to the anode plate under the high-voltage discharge effect of the cathode line in the electric field area;
s3, collecting dust flushed down on the anode plate by the liquid receiving disc and absorbing CO 2 And SO 2 The decarbonized flue gas is discharged out of the wet electrostatic precipitator through the flue gas outlet;
s4, absorbing CO 2 And SO 2 Removing particle impurities from the ammonia water solution after the removal of the impurities in a purifier, conveying the solution after the removal of the impurities to a stirring tank through a first conveying pump, and adding desulfurized gypsum into the stirring tank for full reaction to obtain a suspension containing calcium carbonate and ammonium sulfate;
s5, pumping the suspension liquid in the stirring tank into a precipitation separation tank by a second conveying pump, precipitating and discharging calcium carbonate in the precipitation separation tank, and crystallizing the upper layer solution into a crystallization precipitation tank by a third conveying pump to obtain ammonium sulfate crystals.
Therefore, the recycling carbon capturing system based on the wet electrostatic precipitator with the structure can effectively realize desulfurization gypsum and CO 2 Is capable of cooperatively meeting SO (sulfur dioxide) and reducing emission and recycling utilization 2 The near zero emission of the catalyst has small occupied area, simple process flow and higher reaction efficiency, so that the decarburization cost is low, and the catalyst is favorable for large-scale application.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention and not for limiting it, and although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that: the technical scheme of the invention can be modified or replaced by the same, and the modified technical scheme cannot deviate from the spirit and scope of the technical scheme of the invention.
Claims (9)
1. A recycling carbon capture system based on a wet electrostatic precipitator is characterized in that: the device comprises a wet electrostatic precipitator, an ammonia water supply unit, a mineralization unit and a crystallization unit, wherein the wet electrostatic precipitator is communicated with an ammonia water storage tank of the ammonia water supply unit through a liquid inlet, a liquid outlet of the wet electrostatic precipitator is communicated with a purifier of the mineralization unit, and a stirring tank of the mineralization unit is communicated with a precipitation separation tank of the crystallization unit.
2. A wet electrostatic precipitator based carbon capture system according to claim 1, wherein: the wet electrostatic precipitator is inside to be equipped with liquid receiving disk, electric field area, shower nozzle and defroster from bottom to top in proper order, is equipped with the flue gas entry between liquid receiving disk and the electric field area, is equipped with carbon dioxide absorption zone between electric field area and the defroster, and wet electrostatic precipitator top is equipped with the flue gas export, and electric field area department interval is equipped with negative pole line and anode plate.
3. A wet electrostatic precipitator based carbon capture system according to claim 1, wherein: the mineralization unit comprises a purifier, a first conveying pump, a stirring tank and a second conveying pump, the liquid receiving disc is communicated with the purifier through a liquid outlet, the purifier is communicated with the stirring tank through the first conveying pump, and the stirring tank is communicated with the sedimentation separation tank through the second conveying pump.
4. A wet electrostatic precipitator based carbon capture system according to claim 1, wherein: the crystallization unit comprises a sedimentation separation tank, a third conveying pump and a crystallization sedimentation tank, and the sedimentation separation tank is communicated with the crystallization sedimentation tank through the third conveying pump.
5. A wet electrostatic precipitator based carbon capture system according to claim 2, wherein: the demister is one of a silk screen demister and a ridge type demister.
6. A wet electrostatic precipitator based carbon capture system according to claim 1, wherein: the ammonia water storage tank is communicated with the liquid inlet through an ammonia water delivery pump, a plurality of spray heads are uniformly arranged on a liquid inlet pipe communicated with the liquid inlet, and the spray heads are made of stainless steel anti-corrosion materials.
7. A wet electrostatic precipitator based carbon capture system according to claim 2, wherein: the liquid receiving disc is one of funnel-shaped or bowl-shaped.
8. A wet electrostatic precipitator based carbon capture system according to claim 1, wherein: the stirring tank is internally provided with a pH sensor.
9. A method of using a wet electrostatic precipitator based carbon capture system according to any of claims 1-8, wherein:
s1, starting an ammonia water conveying pump, conveying an ammonia water solution to a spray head for spraying, and uniformly distributing a film on an anode plate by the sprayed ammonia water solution;
s2, enabling flue gas after wet desulfurization to enter a wet electrostatic precipitator through a flue gas inlet, and enabling CO in the flue gas to enter the wet electrostatic precipitator 2 And residual SO 2 The dust in the flue gas is charged and migrates to the anode plate under the high-voltage discharge effect of the cathode line in the electric field area;
s3, collecting dust flushed down on the anode plate by the liquid receiving disc and absorbing CO 2 And SO 2 The decarbonized flue gas is discharged out of the wet electrostatic precipitator through the flue gas outlet;
s4, absorbing CO 2 And SO 2 Removing particle impurities from the ammonia water solution after the removal of the impurities in a purifier, conveying the solution after the removal of the impurities to a stirring tank through a first conveying pump, and adding desulfurized gypsum into the stirring tank for full reaction to obtain a suspension containing calcium carbonate and ammonium sulfate;
s5, pumping the suspension liquid in the stirring tank into a precipitation separation tank by a second conveying pump, precipitating and discharging calcium carbonate in the precipitation separation tank, and crystallizing the upper layer solution into a crystallization precipitation tank by a third conveying pump to obtain ammonium sulfate crystals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311371796.7A CN117547948A (en) | 2023-10-20 | 2023-10-20 | Recycling carbon capturing system based on wet electrostatic precipitator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311371796.7A CN117547948A (en) | 2023-10-20 | 2023-10-20 | Recycling carbon capturing system based on wet electrostatic precipitator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117547948A true CN117547948A (en) | 2024-02-13 |
Family
ID=89811890
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311371796.7A Pending CN117547948A (en) | 2023-10-20 | 2023-10-20 | Recycling carbon capturing system based on wet electrostatic precipitator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117547948A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204799103U (en) * | 2015-06-17 | 2015-11-25 | 杭州北高峰电力工程设计有限公司 | Boiler flue gas ultra -clean discharges tower device |
| CN105214465A (en) * | 2015-10-27 | 2016-01-06 | 李继凤 | The apparatus and method of integration wet process of FGD dedusting |
| CN206613375U (en) * | 2017-04-04 | 2017-11-07 | 无锡马丁格林光伏科技有限公司 | A kind of solar energy wet desulphurization Wet type electric dust-removing device |
| CN211587055U (en) * | 2019-12-26 | 2020-09-29 | 襄阳赛欧环保设备有限公司 | Desulfurization-wet-type electrostatic precipitator all-in-one belt cleaning device |
| CN114702056A (en) * | 2022-04-14 | 2022-07-05 | 广西一立碳和科技有限公司 | Method for absorbing carbon dioxide in power plant tail gas by desulfurized gypsum |
| CN116351233A (en) * | 2023-02-20 | 2023-06-30 | 国能(山东)能源环境有限公司 | System and process for recycling desulfurized gypsum calcium by coupling ammonia water to fix carbon |
-
2023
- 2023-10-20 CN CN202311371796.7A patent/CN117547948A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204799103U (en) * | 2015-06-17 | 2015-11-25 | 杭州北高峰电力工程设计有限公司 | Boiler flue gas ultra -clean discharges tower device |
| CN105214465A (en) * | 2015-10-27 | 2016-01-06 | 李继凤 | The apparatus and method of integration wet process of FGD dedusting |
| CN206613375U (en) * | 2017-04-04 | 2017-11-07 | 无锡马丁格林光伏科技有限公司 | A kind of solar energy wet desulphurization Wet type electric dust-removing device |
| CN211587055U (en) * | 2019-12-26 | 2020-09-29 | 襄阳赛欧环保设备有限公司 | Desulfurization-wet-type electrostatic precipitator all-in-one belt cleaning device |
| CN114702056A (en) * | 2022-04-14 | 2022-07-05 | 广西一立碳和科技有限公司 | Method for absorbing carbon dioxide in power plant tail gas by desulfurized gypsum |
| CN116351233A (en) * | 2023-02-20 | 2023-06-30 | 国能(山东)能源环境有限公司 | System and process for recycling desulfurized gypsum calcium by coupling ammonia water to fix carbon |
Non-Patent Citations (1)
| Title |
|---|
| 高育欣等: "建筑固废资源综合利用关键技术", 31 January 2021, 中国建材工业出版社, pages: 95 - 96 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101797466B (en) | Wet flue gas desulphurizing method utilizing carbide slag slurry and device thereof | |
| CN102974185B (en) | Modularized integrated smoke purification system and method for removing plurality of pollutants | |
| CN104740992B (en) | A kind of carbide slag gypsum flue gas deep desulfuration dust arrester and method | |
| CN105214465A (en) | The apparatus and method of integration wet process of FGD dedusting | |
| CN102430478A (en) | Device and method for removing PM 2.5 from smoke | |
| CN104437046B (en) | Catalytic cracking flue gas desulfurization and dust collecting process and device thereof | |
| CN203886406U (en) | Tail gas purification device of circulating fluid bed garbage incinerator | |
| CN105107366B (en) | A kind of concurrent spray semi-dry fume desulfuration method | |
| CN107032483B (en) | Double-biological-filter-material reverse baffling type continuous flow reactor and wastewater treatment process thereof | |
| CN102580432A (en) | Fume dedusting, desulfurating and denitriding integrated process | |
| CN108671734A (en) | A kind of environment-friendly highly efficient purification soda acid exhaust gas washing tower and its working method | |
| CN102847430A (en) | System and technology for cleaning flue gas | |
| CN202683013U (en) | High-efficiency wet electric precipitation and desulfurization system | |
| CN218944751U (en) | Coal-fired flue gas treatment system | |
| CN107970758A (en) | A kind of device and method using carbide slag purifying smoke | |
| CN117547948A (en) | Recycling carbon capturing system based on wet electrostatic precipitator | |
| CN207769527U (en) | A kind of device of the ultra-clean processing flue gas of the dust removal integrated wet method of desulphurization denitration | |
| CN102698582A (en) | Ammonium bicarbonate desulfurization process and ammonium bicarbonate desulfurization process system | |
| CN201791470U (en) | Dry-method suspension bed type flue gas desulfurization system for small and medium sized coal burning boiler | |
| CN206508777U (en) | SO3 system in a kind of utilization desulfurization wastewater removing boiler smoke | |
| CN205055799U (en) | Device that integration wet flue gas desulfurization removed dust | |
| CN205055798U (en) | Modular wet -type flue gas desulfurization dust collector | |
| CN202315621U (en) | Flue gas purification tower of boiler | |
| CN204447739U (en) | A kind of high-efficiency wet-desulfurizing and electric demist integrated apparatus | |
| CN107875824A (en) | A kind of device of the ultra-clean processing flue gas of the dust removal integrated wet method of desulphurization denitration |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |