CN215086146U - Device for capturing carbon dioxide in flue gas by using magnesium method - Google Patents
Device for capturing carbon dioxide in flue gas by using magnesium method Download PDFInfo
- Publication number
- CN215086146U CN215086146U CN202120712565.8U CN202120712565U CN215086146U CN 215086146 U CN215086146 U CN 215086146U CN 202120712565 U CN202120712565 U CN 202120712565U CN 215086146 U CN215086146 U CN 215086146U
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- China
- Prior art keywords
- carbon dioxide
- reaction tank
- flue gas
- gas
- bubbling reaction
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- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 title claims abstract description 105
- 229910002092 carbon dioxide Inorganic materials 0.000 title claims abstract description 53
- 239000001569 carbon dioxide Substances 0.000 title claims abstract description 52
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 34
- 239000003546 flue gas Substances 0.000 title claims abstract description 34
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 title claims abstract description 19
- 239000011777 magnesium Substances 0.000 title claims abstract description 19
- 229910052749 magnesium Inorganic materials 0.000 title claims abstract description 19
- 238000000034 method Methods 0.000 title claims abstract description 19
- 238000006243 chemical reaction Methods 0.000 claims abstract description 42
- 230000005587 bubbling Effects 0.000 claims abstract description 39
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims abstract description 31
- 239000007789 gas Substances 0.000 claims abstract description 28
- 238000010521 absorption reaction Methods 0.000 claims abstract description 26
- 239000007788 liquid Substances 0.000 claims abstract description 26
- 239000007921 spray Substances 0.000 claims abstract description 25
- 238000003860 storage Methods 0.000 claims abstract description 23
- 229910021529 ammonia Inorganic materials 0.000 claims abstract description 8
- 238000001802 infusion Methods 0.000 claims description 14
- 229910001220 stainless steel Inorganic materials 0.000 claims description 9
- 239000010935 stainless steel Substances 0.000 claims description 9
- 230000007246 mechanism Effects 0.000 claims description 6
- 238000005507 spraying Methods 0.000 claims description 3
- 239000012295 chemical reaction liquid Substances 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 5
- 239000007791 liquid phase Substances 0.000 abstract description 3
- 239000000463 material Substances 0.000 abstract description 3
- 238000004064 recycling Methods 0.000 abstract description 2
- 230000009467 reduction Effects 0.000 abstract description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 abstract 1
- 239000011707 mineral Substances 0.000 abstract 1
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 5
- 241000197194 Bulla Species 0.000 description 5
- 235000011114 ammonium hydroxide Nutrition 0.000 description 5
- 208000002352 blister Diseases 0.000 description 5
- 238000001514 detection method Methods 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000005070 sampling Methods 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 description 2
- 238000007664 blowing Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002803 fossil fuel Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 229910001629 magnesium chloride Inorganic materials 0.000 description 1
- 229910001607 magnesium mineral Inorganic materials 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000006199 nebulizer Substances 0.000 description 1
- 239000011541 reaction mixture Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Images
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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
-
- 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)
- Gas Separation By Absorption (AREA)
Abstract
The utility model discloses a device for capturing carbon dioxide in flue gas by using a magnesium method, which comprises a bubbling reaction tank, a spray absorption tower and an ammonia storage tank, wherein the device can effectively utilize magnesium-rich minerals by capturing the carbon dioxide in the flue gas by using the magnesium method, captures and fixes the carbon dioxide in the flue gas, realizes the national emission reduction target, wherein, in the utility model, the industrial flue gas which can be introduced through the gas distributor in the bubbling reaction tank is uniformly dispersed in the whole liquid phase, the reaction liquid in the bubbling reaction tank is dispersed into fine liquid by a sprayer in the spray absorption tower and sprayed down in the spray absorption tower, so that gas-liquid contact is realized, the absorption effect of carbon dioxide is increased, in addition, the bubbling reaction tank, the spray absorption tower and the ammonia gas storage tank are communicated in a circulating way through pipelines, so that the recycling of materials is realized, and the device is economical and environment-friendly.
Description
Technical Field
The utility model relates to a carbon dioxide handles technical field, specifically is an utilize device of carbon dioxide in magnesium method entrapment flue gas.
Background
Due to global dependence on fossil fuels, the greenhouse effect caused by the increasing amount of carbon dioxide emissions generated during industrial production and human life is threatening the global environment seriously. The capture and sealing technology of carbon dioxide collects carbon dioxide from a large-scale emission source and stores the carbon dioxide in a proper place so as to avoid the carbon dioxide from being discharged into the atmosphere.
Disclosure of Invention
The utility model provides a can improve the absorption rate of carbon dioxide, can recycle of material simultaneously, the device of carbon dioxide in the utilization magnesium method entrapment flue gas of economic environmental protection.
In order to achieve the above object, the utility model provides a following technical scheme: an apparatus for capturing carbon dioxide in flue gas by using a magnesium method comprises:
the device comprises a bubbling reaction tank, a gas distributor and a gas distributor, wherein a plurality of inlets and outlets are formed in the bubbling reaction tank;
the spray absorption tower is communicated with the bubbling reaction tank, a sprayer is installed in the spray absorption tower, the sprayer is communicated with the bubbling reaction tank through a liquid conveying mechanism, the sprayer is arranged in multiple layers, and each layer is provided with at least one spray head;
and the top end of the ammonia storage tank is communicated with the first bubbling reaction tank outlet, and the bottom end of the ammonia storage tank is communicated with the first bubbling reaction tank inlet.
Preferably, an inlet of the bubbling reaction tank is connected with a stainless steel pipeline used for conveying industrial flue gas rich in carbon dioxide, and the stainless steel pipeline is provided with a first gas measuring hole.
Preferably, the liquid conveying mechanism comprises an infusion pump, a liquid inlet of the infusion pump is connected with an outlet of the bubbling reaction tank through a pipeline, and a liquid outlet of the infusion pump is communicated with the nozzles of all layers through pipelines.
Preferably, the liquid outlet of the infusion pump is communicated with the ammonia storage tank through another pipeline.
Preferably, the bottom height of the ammonia gas storage tank is higher than the top height of the bubbling reaction tank.
Preferably, a stop valve and a flow meter are arranged between the bottom of the ammonia gas storage tank and an inlet of the bubbling reaction tank.
Preferably, a demister is installed above the sprayer in the spray absorption tower, a discharge pipe is connected to an air outlet of the spray absorption tower, and a second gas measuring hole is formed in the discharge pipe.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model has the advantages of being scientific and reasonable in structure, utilize the carbon dioxide in the magnesium method entrapment flue gas, can utilize rich magnesium mineral effectively to carbon dioxide to in the flue gas is caught and is fixed, realizes the national emission reduction target, wherein the utility model discloses in, the even scattering of industrial flue gas that can let in through the gas distributor in the tympanic bulla retort is in whole liquid phase, through the atomizer in the spray absorption tower, disperses the reaction liquid in the tympanic bulla retort into slight liquid and sprays and down in the spray absorption tower, realizes the gas-liquid contact, increases the absorption effect of carbon dioxide, in addition, at the tympanic bulla retort, spray absorption tower and ammonia storage tank pass through the pipeline circulation intercommunication, has realized the recycling of material, economic environmental protection.
Drawings
FIG. 1 is a schematic structural diagram of a device for capturing carbon dioxide in flue gas by a magnesium method;
FIG. 2 is a schematic view of the gas distributor of the present invention;
FIG. 3 is a schematic view of the sprayer according to the present invention;
FIG. 4 is a schematic structural view of the device for capturing carbon dioxide in flue gas by magnesium method according to the present invention connected to a carbon dioxide cylinder group;
reference numbers in the figures: 1. a bubbling reaction tank; 2. a gas distributor; 3. spraying an absorption tower; 4. a sprayer; 5. a spray head; 6. an ammonia gas storage tank; 7. stainless steel pipeline; 8. a first gas detection hole; 9. an infusion pump; 10. a stop valve; 11. a flow meter; 12. a demister; 13. a discharge pipe; 14. a second gas detection hole; 15. a carbon dioxide steel cylinder group; 16. a pressure reducing valve; 17. a blower; 18. sampling points; 19. a liquid level measuring point.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.
Example (b): as shown in fig. 1-3, a device for capturing carbon dioxide in flue gas by using a magnesium method comprises a bubble reaction tank 1, wherein a plurality of inlets and outlets are arranged on the bubble reaction tank 1, and a gas distributor 2 is arranged in the bubble reaction tank 1; the spray absorption tower 3 is communicated with the bubbling reaction tank 1, a sprayer 4 is installed in the spray absorption tower 3, the sprayer 4 is communicated with the bubbling reaction tank 1 through a liquid conveying mechanism, the sprayer 4 is arranged in multiple layers, and each layer is provided with at least one spray head 5; the ammonia gas storage tank 6, the top of ammonia gas storage tank 6 and 1 export intercommunication of tympanic bulla retort, the bottom communicates with 1 import of tympanic bulla retort.
Referring to fig. 1, an inlet of the bubbling reaction tank 1 is connected with a stainless steel pipeline 7 for conveying industrial flue gas rich in carbon dioxide, and a first gas measuring hole 8 is arranged on the stainless steel pipeline 7.
Referring to fig. 1, the liquid conveying mechanism in this embodiment includes an infusion pump 9, a liquid inlet of the infusion pump 9 is connected to an outlet of the bubble reaction tank 1 through a pipeline, a liquid outlet of the infusion pump 9 is communicated with each layer of nozzles 5 through a pipeline, and the reaction liquid in the bubble reaction tank 1 is conveyed to each layer of nozzles 5 through the infusion pump 9 and is ejected through each layer of nozzles 5.
Referring to fig. 1, a liquid outlet of the liquid conveying pump 9 is communicated with the ammonia gas storage tank 6 through another pipeline for conveying part of water in the bubble reaction tank 1 into the ammonia gas storage tank 6.
Referring to fig. 1, in the present embodiment, the height of the bottom of the ammonia gas storage tank 6 is higher than the height of the top of the bubble reactor 1, so that the ammonia water can flow into the bubble reactor 1 through the bottom of the ammonia gas storage tank 6 under the action of gravity, and a stop valve 10 and a flow meter 11 are disposed between the bottom of the ammonia gas storage tank 6 and an inlet of the bubble reactor 1 for controlling the flow rate of the ammonia water.
Referring to fig. 1, a demister 12 is installed above the sprayer 4 in the spray absorption tower 3, water drops discharged along with the flue gas are condensed, the loss of liquid is reduced, the gas outlet of the spray absorption tower 3 is connected with a discharge pipe 13, and a second gas measuring hole 14 is formed in the discharge pipe 13 and used for detecting the discharged flue gas.
Referring to fig. 1, a sampling point 18 and a liquid level measuring point 19 are also provided on the bubble reaction tank 1.
When the device works specifically, firstly, water is injected into the bubbling reaction tank 1, the infusion pump 9 is started, part of water in the bubbling reaction tank 1 is conveyed into the ammonia gas storage tank 6, commercially available ammonia water is added into the ammonia gas storage tank 6, preliminary stirring and sealing are carried out, and required amount of magnesium chloride solid is preliminarily dissolved and then is put into the bubbling reaction tank 1, wherein a blower 17 can be connected with the bubbling reaction tank 1, the blower is started, stirring is carried out by utilizing vortex generated by air blowing, valves are arranged on all pipelines of the device, and liquid path valves are adjusted to realize internal circulation of reaction liquid; then, opening the stop valve 10, adjusting the flow meter 11 to the required flow, injecting ammonia water into the bubbling reaction tank 1, and continuously detecting the pH value of the solution through a sampling point; switch on and be used for carrying stainless steel pipeline 7 that is rich in carbon dioxide industrial flue gas, carry industrial flue gas in bubbling retort 1, industrial flue gas gets into bubbling retort 1 in, through the even dispersion of the industrial flue gas that lets in whole liquid phase of gas distributor 2 in bubbling retort 1, industrial flue gas gets into in the absorption tower 3 that sprays, under the effect of atomizer 4, disperse into minute liquid with the reaction liquid in bubbling retort 1 and spray in the absorption tower 3 and down, realize gas-liquid contact, increase the absorption effect of carbon dioxide, the flue gas of handling port passes through discharge pipe 13 and discharges.
As shown in fig. 4, a specific example is shown, wherein, in this embodiment, a carbon dioxide steel cylinder group 15 is installed at one end of the stainless steel pipeline 7 for simulating the input industrial flue gas rich in carbon dioxide, and a pressure reducing valve 16 is installed on the carbon dioxide steel cylinder group, wherein, the CO2 steel cylinder group is externally connected with a high-pressure confluence system, the high-pressure carbon dioxide gas is converged into a single outlet, and then the pressure reducing valve is connected to reduce the pressure of the mixed gas and enter the gas rotor carbon dioxide flowmeter, and the flow of the carbon dioxide gas is controlled by a carbon dioxide stop valve at the lower part of the carbon dioxide flowmeter;
according to the above procedure, 46m by blower3Blowing the mixture into a bubbling reaction tank at a flow rate of/h for stirring, adding ammonia water into the bubbling reaction tank at a flow rate of 25L/h, and adding MgCl in the reaction liquid2The concentration was 0.16mol/L and 8m was measured after the pH of the reaction mixture reached 103Carbon dioxide is added at the flow rate of/h, the percentage content of the carbon dioxide is 15%, the pH value of the reaction liquid, the content of the carbon dioxide at the first gas detection port and the content of the carbon dioxide at the second gas detection port are detected and recorded at intervals of 5 minutes, and the reaction liquid continuously runs for 3-4 hours, wherein the content of the carbon dioxide at the second gas detection port is 10% under the condition that the sprayer is not opened, and the fixation efficiency of the carbon dioxide is about 28%; after further opening of the nebulizer, the carbon dioxide content of the second gas port was measured to drop further to around 8.5%, at which time the carbon dioxide fixation efficiency was about 40%.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. An apparatus for capturing carbon dioxide in flue gas by using a magnesium method, comprising:
the device comprises a bubbling reaction tank, a gas distributor and a gas distributor, wherein a plurality of inlets and outlets are formed in the bubbling reaction tank;
the spray absorption tower is communicated with the bubbling reaction tank, a sprayer is installed in the spray absorption tower, the sprayer is communicated with the bubbling reaction tank through a liquid conveying mechanism, the sprayer is arranged in multiple layers, and each layer is provided with at least one spray head;
and the top end of the ammonia storage tank is communicated with the first bubbling reaction tank outlet, and the bottom end of the ammonia storage tank is communicated with the first bubbling reaction tank inlet.
2. The apparatus for capturing carbon dioxide in flue gas by using magnesium method according to claim 1, wherein: an inlet of the bubbling reaction tank is connected with a stainless steel pipeline used for conveying industrial flue gas rich in carbon dioxide, and a first gas measuring hole is formed in the stainless steel pipeline.
3. The apparatus for capturing carbon dioxide in flue gas by using magnesium method according to claim 1, wherein: the liquid conveying mechanism comprises an infusion pump, a liquid inlet of the infusion pump is connected with an outlet of the bubbling reaction tank through a pipeline, and a liquid outlet of the infusion pump is communicated with the spray heads of all layers through pipelines.
4. The apparatus for capturing carbon dioxide in flue gas by using magnesium method according to claim 3, wherein: the liquid outlet of the infusion pump is communicated with the ammonia storage tank through another pipeline.
5. The apparatus for capturing carbon dioxide in flue gas by using magnesium method according to claim 1, wherein: the bottom height of the ammonia gas storage tank is higher than the top height of the bubbling reaction tank.
6. The apparatus for capturing carbon dioxide in flue gas by using magnesium method according to claim 1, wherein: and a stop valve and a flow meter are arranged between the bottom of the ammonia gas storage tank and an inlet of the bubbling reaction tank.
7. The apparatus for capturing carbon dioxide in flue gas by using magnesium method according to claim 1, wherein: the spraying absorption tower is internally provided with a demister above the sprayer, the gas outlet of the spraying absorption tower is connected with a discharge pipe, and a second gas measuring hole is formed in the discharge pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120712565.8U CN215086146U (en) | 2021-04-08 | 2021-04-08 | Device for capturing carbon dioxide in flue gas by using magnesium method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120712565.8U CN215086146U (en) | 2021-04-08 | 2021-04-08 | Device for capturing carbon dioxide in flue gas by using magnesium method |
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| Publication Number | Publication Date |
|---|---|
| CN215086146U true CN215086146U (en) | 2021-12-10 |
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| CN202120712565.8U Active CN215086146U (en) | 2021-04-08 | 2021-04-08 | Device for capturing carbon dioxide in flue gas by using magnesium method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024065164A1 (en) * | 2022-09-26 | 2024-04-04 | 南京延长反应技术研究院有限公司 | Micro-droplet enhanced carbon dioxide absorption system and method |
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2021
- 2021-04-08 CN CN202120712565.8U patent/CN215086146U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024065164A1 (en) * | 2022-09-26 | 2024-04-04 | 南京延长反应技术研究院有限公司 | Micro-droplet enhanced carbon dioxide absorption system and method |
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