CN212327862U - Solar-driven carbon dioxide capturing tower - Google Patents
Solar-driven carbon dioxide capturing tower Download PDFInfo
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- CN212327862U CN212327862U CN202020856860.6U CN202020856860U CN212327862U CN 212327862 U CN212327862 U CN 212327862U CN 202020856860 U CN202020856860 U CN 202020856860U CN 212327862 U CN212327862 U CN 212327862U
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- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
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Abstract
The utility model discloses a solar drive's carbon dioxide entrapment tower, include: a hyperbolic trap tower; the outer wall of the hyperbolic type trapping tower is provided with a solar energy absorption coating used for absorbing gas in the solar energy heating tower; the top of the hyperbolic type trapping tower is provided with an air extractor, and the bottom of the hyperbolic type trapping tower is provided with a rich liquid outlet; a barren liquor pool and a trapping filler are sequentially arranged between the air extraction device and the rich liquor outlet from top to bottom; the barren liquor pool is provided with a plurality of outlets, and the outlets are provided with pressurizing nozzles; and a barren liquor conveying pipeline is arranged at an inlet of the barren liquor pool and is used for being communicated with the outside. The utility model discloses a strengthen the mass transfer rate between carbon dioxide catch liquid and the atmosphere, strengthen the entrapment efficiency of carbon dioxide, can carry out the high-efficient absorption to the carbon dioxide of low concentration in the atmosphere.
Description
Technical Field
The utility model belongs to the technical field of the carbon dioxide entrapment, in particular to solar drive's carbon dioxide entrapment tower.
Background
With the continuous improvement of the global industrialization degree in recent years, the emission of carbon dioxide is also continuously improved, the emission of the global carbon dioxide reaches 368 hundred million tons in 2019, and the reduction of the carbon emission becomes a problem which needs to be confronted by all human beings. The existing carbon dioxide capturing technology is mainly used for capturing and treating high-concentration carbon dioxide; in practice, however, it is more desirable to treat low concentrations of carbon dioxide in the atmosphere.
There are three main methods of carbon dioxide capture today: 1. absorption method; 2. adsorption method; 3. a membrane separation method; among them, the absorption method is to utilize the property of carbon dioxide acid gas to react with weak alkaline substance and then decompose into carbon dioxide gas, but the method is difficult to be applied to low-concentration CO2Absorption, a stronger driving force is required to drive the capture liquid towards CO2Absorption of (2); the adsorption method is to utilize some solid adsorbents to adsorb CO2Adsorption is carried out, but this method has a small amount of adsorption and poor selectivity, and CO is mainly carried out by a temperature difference or a pressure difference2Absorption of (2); the membrane separation method is to use polymeric polymer materials, such as polyimide, cellulose acetate and the like to prepare a membrane, separate the gases by using different permeabilities of the membrane to different gases, and drive the separation of the gases by using the pressure difference between two sides of the membrane, but the separation effect of the method is poor, and the method can be used for separating low-concentration CO in the atmosphere2(350-450ppm(ml/m3) Efficient absorption is difficult to achieve.
In summary, the existing devices and methods cannot efficiently absorb low-concentration carbon dioxide in the atmosphere, and a new solar-driven carbon dioxide capturing tower is urgently needed.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a solar drive's carbon dioxide entrapment tower to the carbon dioxide of low concentration is difficult to high-efficient absorptive technical problem in the atmosphere of solving the aforesaid existence. The utility model discloses a strengthen the mass transfer rate between carbon dioxide catch liquid and the atmosphere, strengthen the entrapment efficiency of carbon dioxide, can carry out the high-efficient absorption to the carbon dioxide of low concentration in the atmosphere.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model discloses a solar drive's carbon dioxide entrapment tower, include: a hyperbolic trap tower;
the outer wall of the hyperbolic type trapping tower is provided with a solar energy absorption coating used for absorbing gas in the solar energy heating tower;
the top of the hyperbolic type trapping tower is provided with an air extractor, and the bottom of the hyperbolic type trapping tower is provided with a rich liquid outlet;
a barren liquor pool and a trapping filler are sequentially arranged between the air extraction device and the rich liquor outlet from top to bottom;
the barren liquor pool is provided with a plurality of outlets, and the outlets are provided with pressurizing nozzles; and a barren liquor conveying pipeline is arranged at an inlet of the barren liquor pool and is used for being communicated with the outside.
The utility model discloses a further improvement lies in, barren liquor pipeline is provided with the choke valve.
The utility model discloses a further improvement lies in, still includes: and the rich liquid tank is arranged below the rich liquid outlet.
The utility model is further improved in that the trapping filler is a multilayer trapping filler; and truss structures are adopted for supporting among the trapping fillers of all layers.
The utility model discloses a further improvement lies in, air exhaust device is air exhauster or pump.
The utility model discloses a further improvement lies in, the pressurization shower nozzle is evenly arranged.
The utility model discloses a further improvement lies in, has added carbon dioxide entrapment catalyst in the entrapment filler.
Compared with the prior art, the utility model discloses following beneficial effect has:
the utility model discloses a device novel structure promotes atmospheric velocity of flow through hyperbolic tower, simultaneously according to chimney effect principle, paints solar energy absorption coating at the entrapment tower outer wall, makes the air in entrapment tower temperature rising conducts the heat for the tower for the temperature of air risees, produces the difference in temperature with the outer air of tower, makes air flow rate promotion in the tower equally, and then has improved CO2Mass transfer efficiency with the capture liquid; the capture lean solution is changed into liquid drops through the pressurizing nozzle group, and the specific surface area of the capture solution is increased; the multi-layered packing provides a trapping environment for the process and catalyzes the trapping process.
The utility model discloses in, the flow of liquid is caught in the choke valve control of installation among the barren liquor pipeline to realize efficient entrapment, promote carbon dioxide gas's in the pregnant solution content as far as possible, promote process efficiency.
The utility model discloses in, the rich liquid is collected in the rich liquid pond of entrapment tower bottom, exports next stage through the pipeline.
In the utility model, the solid catalytic filler is added in the capturing tower, so that the capturing efficiency of the carbon dioxide can be enhanced; the fillers are supported by a truss structure, so that the air inflow of the atmosphere is improved; the multiple trapping mode also improves the trapping efficiency.
The utility model discloses in, install the velocity of flow that the air exhauster promoted the air additional at entrapment top of the tower end, promote mass transfer efficiency, simultaneously the continuous bottom CO of going forward2The higher content of atmospheric air is sucked in, and CO is absorbed at the top2The lower content atmosphere is vented.
The utility model discloses in, add the entrapment catalyst in the entrapment filler and promote entrapment efficiency.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art are briefly introduced below; it is obvious that the drawings in the following description are some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
FIG. 1 is a schematic diagram of a solar-powered carbon dioxide capture tower according to an embodiment of the present invention;
in FIG. 1, an exhaust fan; 2. a hyperbolic trap tower; 3. a barren liquor delivery conduit; 4. a throttle valve; 5. a pressurized spray head; 6. trapping the filler; 7. a rich liquid outlet; 8. and a rich liquid pool.
Detailed Description
In order to make the purpose, technical effect and technical solution of the embodiments of the present invention clearer, the following description, with reference to the drawings in the embodiments of the present invention, clearly and completely describes the technical solution in the embodiments of the present invention; obviously, the described embodiments are some of the embodiments of the present invention. Based on the embodiments disclosed in the present invention, other embodiments obtained by a person skilled in the art without creative efforts shall fall within the protection scope of the present invention.
Referring to fig. 1, a solar-driven carbon dioxide capturing tower according to an embodiment of the present invention includes: a rich liquid pool 8, a rich liquid outlet 7, a trapping filler 6, a pressurizing spray head 5, a throttle valve 4, a barren liquor conveying pipeline 3, a hyperbolic trapping tower 2 and an air draft device.
The air extraction device is an exhaust fan 1 or a pump.
The outer wall of the hyperbolic type trapping tower 2 is coated with solar energy absorption coating; an exhaust fan is arranged at the top end of the capturing tower from top to bottom in the tower; a barren liquor pool; a pressurized nozzle group below the hyperbolic throat; trapping filler 6 (which may be a four-layer carbon dioxide trapping base); and a rich liquid pool. The solar energy absorbing coating on the outer wall absorbs solar energy and is used for heating the hyperbolic type trapping tower 2, so that the temperature of air in the tower rises, and the density of the air in the tower falls to cause the air in the tower to flow upwards so as to strengthen the flow velocity of the air; the exhaust fan 1 at the top of the hyperbolic trapping tower 2 adopts a pipeline exhaust fan and is arranged at the top end of the hyperbolic tower, and CO is discharged from the pipeline exhaust fan2The barren liquor of the collected liquid is transported through a pipelineAnd (3) delivering the barren liquor to a barren liquor pool, installing a throttle valve 4 in a pipeline to control the flow of the liquid collected and collected, and installing uniformly-distributed spray heads below the barren liquor pool to uniformly spray barren liquor. The spray head is a pressurized spray head 5.
Four groups of catalytic fillers with equal vertical intervals are arranged below the spray head, the middle capturing tower of the catalytic fillers is supported by a truss structure so that more atmosphere can enter the capturing tower, and the bottom layer is a rich liquid pool for collecting and absorbing CO2The liquid is collected.
According to the definition of the mass transfer rate controlled by the gas film, the following two ways of improving the mass transfer rate are available: the gas flow rate is increased; enhancing the degree of gas phase turbulence (increasing the reynolds number). The utility model discloses utilize air exhauster and hyperbolic type tower speed of atmosphere in the tower with higher speed, promoted the entrapment efficiency of carbon dioxide. The utility model discloses installed the choke valve additional in barren liquor pipeline, the flow of control barren liquor. The utility model discloses a pressurization shower nozzle becomes the liquid drop with the barren liquor, has increased the specific surface area of barren liquor to liquid and atmospheric contact are caught in the promotion, and then lifting efficiency. The utility model discloses to pack from last to carrying out the interval four layers of arranging down, adopt truss support between every layer, promoted the air input. The utility model discloses, solar energy absorption coating has been paintd at the outer wall of hyperbolic type entrapment tower for the interior air temperature of tower risees, produces the difference in temperature with the outer atmosphere of tower, promotes the interior air flow of tower.
The embodiment of the utility model provides an in, an operating method of solar drive's carbon dioxide entrapment tower for the carbon dioxide of low concentration in the atmosphere is absorbed to the high efficiency, include: barren liquor enters from a barren liquor conveying pipeline 3 and is sprayed down through a pressurizing spray head 5, an exhaust fan 1 is started to enable the atmosphere to move upwards from the bottom of the hyperbolic trapping tower 2, meanwhile, a solar energy absorbing coating on the outer wall of the hyperbolic trapping tower 2 absorbs solar energy, so that the temperature of the hyperbolic trapping tower 2 is increased, the temperature of the atmosphere in the hyperbolic trapping tower 2 is increased, a temperature difference is generated between the temperature of the atmosphere and the atmosphere outside the tower, and the air flow speed in the tower is further increased. The mass transfer of the atmosphere, the trapping liquid and the four layers of trapping filler is carried out, namely the carbon dioxide trapping process; the collected rich solution falls into a rich solution pool 8 at the bottom through a rich solution outlet 7 and then is led out of the device through a rich solution pipeline.
In the utility model, based on the principle of heat exchange of the natural ventilation cooling tower, the flow speed of the atmosphere in the tower is enhanced through the exhaust fan 1 and the hyperbolic type collecting tower 2, the temperature difference is formed by utilizing the chimney principle and the atmospheric temperature in the solar lifting tower, and the flow speed of the atmosphere in the tower is further improved; meanwhile, the radius of the collected liquid is reduced by a pressurizing nozzle 5 to increase the specific surface area, so that the collected liquid and CO are mixed2Has higher mass transfer efficiency. The utility model discloses in promote gas phase mass transfer coefficient through each item measure, and then promote CO2The collection efficiency.
Preferably, the trapping efficiency can be improved by adding a trapping catalyst to the trapping packing 6.
Preferably, the flow rate is controlled by means of a throttle valve 4, the main function being that in a practical capture system, downstream of the capture, there is generally a desorption device, the rate of desorption being generally less than the capture rate, and the capture rate can be controlled by means of a throttle valve, matched to the downstream process.
Preferably, the trapping fillers 6 are supported by a truss structure, so that the air inflow of the atmosphere is improved. The multiple trapping mode also improves the trapping efficiency.
To sum up, the utility model relates to the technical field of carbon dioxide capture, in particular to a device which utilizes a natural ventilation tower type device to improve the capture efficiency of carbon dioxide; the utility model provides a carbon dioxide entrapment tower, scribble hyperbolic type entrapment tower and the air exhauster of solar energy absorption coating including rich liquid pond, rich liquid export, four layers of entrapment fillers, pressurization shower nozzle, choke valve, barren liquor pipeline, outer wall. The exhaust fan extracts air upwards to make the air flow from bottom to top. The hyperbolic curve type accelerates the air flow below the throat of the capturing tower, and simultaneously, the outer wall of the capturing tower is coated with the solar energy absorbing material, so that the temperature of the capturing tower is increased to heat the air in the capturing tower, and the temperature difference is generated between the air and the atmosphere outside the capturing tower, so that the air flow from bottom to top is accelerated. The pressurizing nozzle sprays the trapping barren solution downwards to perform convective mass transfer with the upward flowing atmosphere in the trapping filler to trap CO2. And the trapped rich solution falls into a rich solution pool to be discharged, and trapping is completed. The utility model discloses based on natural expertThe air cooling tower strengthens the heat exchange principle, simultaneously utilizes the chimney effect to strengthen the mass transfer rate between the carbon dioxide trapping liquid and the atmosphere, and simultaneously strengthens the trapping efficiency of the carbon dioxide by additionally arranging the solid catalytic filler in the trapping tower.
The above embodiments are only used to illustrate the technical solution of the present invention and not to limit the same, although the present invention is described in detail with reference to the above embodiments, those skilled in the art can still modify or equally replace the specific embodiments of the present invention, and any modification or equivalent replacement that does not depart from the spirit and scope of the present invention is within the protection scope of the claims of the present invention.
Claims (8)
1. A solar-powered carbon dioxide capture tower, comprising: a hyperbolic trap tower (2);
the outer wall of the hyperbolic type capturing tower (2) is provided with a solar energy absorption coating for absorbing gas in the solar energy heating tower;
the top of the hyperbolic type trapping tower (2) is provided with an air extractor, and the bottom of the hyperbolic type trapping tower is provided with a rich liquid outlet (7);
a barren liquor pool and a trapping filler (6) are sequentially arranged between the air extraction device and the rich liquor outlet (7) from top to bottom;
the barren liquor pool is provided with a plurality of outlets, and the outlets are provided with pressurizing nozzles (5); and a barren liquor conveying pipeline (3) is arranged at an inlet of the barren liquor pool and is used for being communicated with the outside.
2. A solar driven carbon dioxide capture tower according to claim 1, wherein the lean liquid transfer duct (3) is provided with a throttle valve (4).
3. The solar driven carbon dioxide capture tower of claim 1, further comprising:
the rich liquid pool (8), the rich liquid pool (8) is arranged below the rich liquid outlet (7).
4. A solar driven carbon dioxide capture column according to claim 1, characterized in that the capture packing (6) is a multilayer capture packing; and the trapping fillers (6) of each layer are supported by adopting a truss structure.
5. The solar driven carbon dioxide capture tower of claim 4, wherein the plurality of layers of capture packing are equally spaced.
6. A solar driven carbon dioxide capture tower according to claim 1, wherein the air extraction means is an exhaust fan (1) or a pump.
7. A solar-powered carbon dioxide capture column according to claim 1, characterized in that the pressurizing nozzles (5) are evenly arranged.
8. A solar-powered carbon dioxide capture column according to claim 1, characterized in that a carbon dioxide capture catalyst is provided in the capture packing (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020856860.6U CN212327862U (en) | 2020-05-20 | 2020-05-20 | Solar-driven carbon dioxide capturing tower |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020856860.6U CN212327862U (en) | 2020-05-20 | 2020-05-20 | Solar-driven carbon dioxide capturing tower |
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| CN212327862U true CN212327862U (en) | 2021-01-12 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111672280A (en) * | 2020-05-20 | 2020-09-18 | 西安交通大学 | Solar-driven carbon dioxide capturing tower and operation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111672280A (en) * | 2020-05-20 | 2020-09-18 | 西安交通大学 | Solar-driven carbon dioxide capturing tower and operation method thereof |
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