CN115430254B - Solar-heating rotary air carbon catcher, carbon catching system and method - Google Patents
Solar-heating rotary air carbon catcher, carbon catching system and method Download PDFInfo
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- CN115430254B CN115430254B CN202211087875.0A CN202211087875A CN115430254B CN 115430254 B CN115430254 B CN 115430254B CN 202211087875 A CN202211087875 A CN 202211087875A CN 115430254 B CN115430254 B CN 115430254B
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- 229910052799 carbon Inorganic materials 0.000 title claims abstract description 90
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 80
- 238000000034 method Methods 0.000 title claims abstract description 35
- 238000010438 heat treatment Methods 0.000 title abstract description 18
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims abstract description 680
- 229910002092 carbon dioxide Inorganic materials 0.000 claims abstract description 340
- 239000001569 carbon dioxide Substances 0.000 claims abstract description 340
- 239000003463 adsorbent Substances 0.000 claims abstract description 123
- 238000003795 desorption Methods 0.000 claims abstract description 122
- 238000010926 purge Methods 0.000 claims abstract description 53
- 238000001179 sorption measurement Methods 0.000 claims abstract description 51
- 238000007789 sealing Methods 0.000 claims abstract description 21
- 230000007704 transition Effects 0.000 claims abstract description 14
- 239000011148 porous material Substances 0.000 claims abstract description 13
- 230000009471 action Effects 0.000 claims description 14
- 238000007599 discharging Methods 0.000 claims description 14
- 230000008859 change Effects 0.000 claims description 10
- 238000005338 heat storage Methods 0.000 claims description 8
- 239000011232 storage material Substances 0.000 claims description 8
- 230000006835 compression Effects 0.000 claims description 4
- 238000007906 compression Methods 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 4
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- 238000010521 absorption reaction Methods 0.000 claims description 2
- 239000011810 insulating material Substances 0.000 claims description 2
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- 230000008929 regeneration Effects 0.000 description 8
- 238000011069 regeneration method Methods 0.000 description 8
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- 238000010586 diagram Methods 0.000 description 4
- 238000005265 energy consumption Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- UNXHWFMMPAWVPI-UHFFFAOYSA-N Erythritol Natural products OCC(O)C(O)CO UNXHWFMMPAWVPI-UHFFFAOYSA-N 0.000 description 1
- 239000004386 Erythritol Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 229910021536 Zeolite Inorganic materials 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- RQPZNWPYLFFXCP-UHFFFAOYSA-L barium dihydroxide Chemical compound [OH-].[OH-].[Ba+2] RQPZNWPYLFFXCP-UHFFFAOYSA-L 0.000 description 1
- 229910001622 calcium bromide Inorganic materials 0.000 description 1
- WGEFECGEFUFIQW-UHFFFAOYSA-L calcium dibromide Chemical compound [Ca+2].[Br-].[Br-] WGEFECGEFUFIQW-UHFFFAOYSA-L 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 1
- UNXHWFMMPAWVPI-ZXZARUISSA-N erythritol Chemical compound OC[C@H](O)[C@H](O)CO UNXHWFMMPAWVPI-ZXZARUISSA-N 0.000 description 1
- 229940009714 erythritol Drugs 0.000 description 1
- 235000019414 erythritol Nutrition 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 229910001629 magnesium chloride Inorganic materials 0.000 description 1
- YIXJRHPUWRPCBB-UHFFFAOYSA-N magnesium nitrate Inorganic materials [Mg+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O YIXJRHPUWRPCBB-UHFFFAOYSA-N 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- 239000002808 molecular sieve Substances 0.000 description 1
- 239000013384 organic framework Substances 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 239000004926 polymethyl methacrylate Substances 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 description 1
- 239000010457 zeolite Substances 0.000 description 1
Classifications
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- 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
- B01D53/02—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 adsorption, e.g. preparative gas chromatography
- B01D53/04—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 adsorption, e.g. preparative gas chromatography with stationary adsorbents
-
- 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
- B01D53/26—Drying gases or vapours
- B01D53/261—Drying gases or vapours by adsorption
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/50—Carbon dioxide
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03G—SPRING, WEIGHT, INERTIA OR LIKE MOTORS; MECHANICAL-POWER PRODUCING DEVICES OR MECHANISMS, NOT OTHERWISE PROVIDED FOR OR USING ENERGY SOURCES NOT OTHERWISE PROVIDED FOR
- F03G6/00—Devices for producing mechanical power from solar energy
- F03G6/098—Components, parts or details
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J1/00—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
- F25J1/0002—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the fluid to be liquefied
- F25J1/0027—Oxides of carbon, e.g. CO2
-
- 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
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Thermal Sciences (AREA)
- Inorganic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Physics & Mathematics (AREA)
- Separation Of Gases By Adsorption (AREA)
- Treating Waste Gases (AREA)
Abstract
The application provides a solar-heating rotary air carbon catcher, a carbon catching system and a method. Wherein, solar heating's rotation type air carbon capture ware includes: the device comprises a carbon dioxide adsorbent unit, a rotating shaft, a carbon dioxide adsorption chamber, a carbon dioxide desorption chamber, a transitional sealing area and a residual gas purging area. The carbon dioxide adsorbent units are cylindrical, and carbon dioxide adsorbents in the grids are isolated from each other; the rotating shaft is fixed at the axial center of the carbon dioxide adsorbent unit; the carbon dioxide adsorption chamber is used for carrying out adsorption treatment on carbon dioxide based on the carbon dioxide adsorbent rotated to the area; the carbon dioxide desorption chamber is used for carrying out desorption treatment on the carbon dioxide adsorbent rotated into the area based on the energy of sunlight; the transition sealing area is used for sealing the carbon dioxide adsorbent in the grille rotating into the area of the transition sealing area; the residual gas purge zone is used to vent air from the carbon dioxide adsorbent pores in the grille turned into its region.
Description
Technical Field
The application relates to the technical field of carbon dioxide trapping, in particular to a solar-heating rotary air carbon trap, a carbon trapping system and a method.
Background
With global climate change, carbon dioxide emission reduction technology receives increasing attention; in addition to conventional carbon dioxide emissions reduction from industrial sources, capturing carbon dioxide directly from the air is also a viable carbon dioxide emissions reduction technology route as a hotspot worldwide.
In the related art, carbon dioxide in trapped air is generally subjected to physical and chemical adsorption by adopting a solid adsorbent, and then the adsorbent is regenerated by using a heat medium such as water vapor and the like, so that the regeneration of the adsorbent is realized while the carbon dioxide is released. However, this method requires a special heating system to provide a heat source for the regeneration of the adsorbent, and is complicated and costly to operate.
Disclosure of Invention
In order to solve the problems, the application provides a solar-powered rotary air carbon catcher, a carbon capturing system and a method.
According to a first aspect of the present application there is provided a solar-powered rotary air carbon trap comprising: the device comprises a carbon dioxide adsorbent unit, a rotating shaft, a carbon dioxide adsorption chamber, a carbon dioxide desorption chamber, a transition sealing area and a residual gas purging area; wherein:
the carbon dioxide adsorbent unit is cylindrical and is used for placing carbon dioxide adsorbents, a plurality of grids formed by a plurality of partition plates passing through the central axis of the carbon dioxide adsorbent unit are arranged in the carbon dioxide adsorbent unit, and the carbon dioxide adsorbents in the grids are isolated from each other;
The rotating shaft is fixed at the axial center of the carbon dioxide adsorbent unit, and is used for rotating according to a preset speed and direction and driving the carbon dioxide adsorbent unit to rotate;
The carbon dioxide adsorption chamber is arranged at the lower part of the rotary air carbon capture device, an air inlet and an air outlet are arranged at two sides of the carbon dioxide adsorption chamber, one part of the carbon dioxide adsorbent units is positioned in the carbon dioxide adsorption chamber, and the carbon dioxide adsorption chamber is used for carrying out adsorption treatment on carbon dioxide in the air based on the carbon dioxide adsorbent rotating into the carbon dioxide adsorption chamber;
the carbon dioxide desorption chamber is arranged at the upper part of the rotary air carbon trap, a desorption gas outlet is arranged in the carbon dioxide desorption chamber, one part of the carbon dioxide adsorbent units is positioned in the carbon dioxide desorption chamber, and the carbon dioxide desorption chamber is used for acquiring sunlight and carrying out desorption treatment on the carbon dioxide adsorbent rotating into the carbon dioxide desorption chamber based on the energy of the sunlight;
the transition sealing area is arranged along the rotation direction of the rotation shaft, and is arranged between the carbon dioxide desorption chamber and the carbon dioxide adsorption chamber and used for sealing the carbon dioxide adsorbent corresponding to the grid rotating into the transition sealing area;
The residual gas purging area is arranged between the carbon dioxide adsorption chamber and the carbon dioxide desorption chamber along the rotation direction of the rotation shaft, and is provided with a purging gas outlet; the residual gas purge zone is used for exhausting air in the carbon dioxide adsorbent pores corresponding to the grids rotated into the zone thereof.
In some embodiments of the application, the carbon dioxide desorption chamber is provided with a phase change heat storage material on an inner side surface.
In some embodiments of the application, the top of the carbon dioxide desorption chamber is a light-transmitting thermal insulation material.
As a possible embodiment, the outer surface of the carbon dioxide adsorbent unit is coated with a solar heat absorbing coating.
In some embodiments of the application, the rotational speed of the rotating shaft is determined based on the temperature of the carbon dioxide desorption chamber.
According to a second aspect of the present application there is provided a solar-powered rotary air carbon capture system comprising:
The rotary air carbon trap according to the first aspect is configured to adsorb carbon dioxide in air and desorb the adsorbed carbon dioxide based on energy of sunlight;
The induced draft fan is connected with the air outlet of the rotary air carbon catcher and is used for enabling air to enter from the air inlet, adsorbing the air through the carbon dioxide adsorbent and then discharging clean air from the air outlet;
the purge pump is connected with a purge gas outlet of the residual gas purge zone in the rotary air carbon trap; the purging pump is used for discharging air in the carbon dioxide adsorbent pores corresponding to the grids in the residual gas purging zone;
The inlet of the desorption pump is connected with a desorption gas outlet of the rotary air carbon trap and is used for discharging carbon dioxide gas obtained by desorption treatment;
and the carbon dioxide storage module is connected with the outlet of the desorption pump and is used for storing the captured carbon dioxide gas.
In some embodiments of the application, the carbon dioxide storage module comprises a buffer tank, a compressor, and a carbon dioxide storage tank; wherein:
the inlet of the buffer tank is connected with the outlet of the desorption pump, and the buffer tank is used for storing trapped carbon dioxide gas;
the inlet of the compressor is connected with the outlet of the buffer tank, and the compressor is used for compressing the trapped carbon dioxide gas;
the carbon dioxide storage tank is connected with an outlet of the compressor, and the carbon dioxide storage tank is used for storing carbon dioxide liquid obtained after compression.
According to a third aspect of the present application, there is provided a solar-powered rotary air-carbon capture method applied to the solar-powered rotary air-carbon capture system of the second aspect, comprising:
under the action of the induced draft fan, the carbon dioxide adsorption chamber of the rotary air carbon capture device adsorbs carbon dioxide in the air based on the carbon dioxide adsorbent rotated into the carbon dioxide adsorption chamber in the carbon dioxide adsorbent unit, and clean air is discharged;
Under the action of the purge pump, discharging air in carbon dioxide adsorbent pores corresponding to grids in a residual gas purge zone of the rotary air carbon trap;
the carbon dioxide desorption chamber of the rotary air carbon trap is used for carrying out desorption treatment on the carbon dioxide adsorbent rotating into the carbon dioxide desorption chamber in the carbon dioxide adsorbent unit based on the energy of sunlight, and discharging the trapped carbon dioxide gas under the action of the desorption pump;
The carbon dioxide storage module stores captured carbon dioxide gas.
According to the technical scheme, the rotary air carbon catcher is used for absorbing carbon dioxide in the air, and meanwhile, the absorbed carbon dioxide is desorbed based on the energy of sunlight, so that the carbon dioxide in the air is captured. In the scheme, the rotary air carbon catcher comprises the carbon dioxide adsorption chamber and the carbon dioxide desorption chamber, so that the carbon dioxide adsorption process and the carbon dioxide desorption process are completed in the adsorption stage in the same equipment, and the complexity of an air carbon capturing system is reduced. In addition, the residual gas purge zone in the rotary air carbon trap can vent residual air from the carbon dioxide adsorbent to enhance the purity of the captured carbon dioxide. In addition, the carbon dioxide desorption chamber adopts solar energy as a desorption heat source, and can realize the regeneration of the adsorbent without a special heating system, so that the energy consumption can be saved, the complexity of the system can be reduced, and the flexibility of the arrangement position of the system can be improved.
Additional aspects and advantages of the application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the application.
Drawings
The foregoing and/or additional aspects and advantages of the application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, in which:
FIG. 1 is a block diagram of a solar-powered rotary air carbon catcher according to an embodiment of the present application;
FIG. 2 is a cross-sectional view of section A-A of FIG. 1;
FIG. 3 is a block diagram of a solar-powered rotary air-carbon capture system according to an embodiment of the present application;
fig. 4 is a flow chart of a solar-heating rotary air carbon capturing method according to an embodiment of the application.
Reference numerals:
a carbon dioxide adsorbent unit 101; a drive shaft, 102; a carbon dioxide adsorbing chamber 103; a carbon dioxide desorption chamber 104; a transitional sealing zone 105; a residual gas purge zone, 106; a rotary air carbon trap 301; a draught fan 302; a purge pump 303; a desorb pump 304; a carbon dioxide storage module 305; buffer tank, 305-1; a compressor, 305-2; a carbon dioxide storage tank 305-3.
Detailed Description
Embodiments of the present application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present application and should not be construed as limiting the application.
It should be noted that, along with global climate change, carbon dioxide emission reduction technology receives increasing attention; in addition to conventional carbon dioxide emissions reduction from industrial sources, capturing carbon dioxide directly from the air is also a viable carbon dioxide emissions reduction technology route as a hotspot worldwide.
In the related art, carbon dioxide in trapped air is generally subjected to physical and chemical adsorption by adopting a solid adsorbent, and then the adsorbent is regenerated by using a heat medium such as water vapor and the like, so that the regeneration of the adsorbent is realized while the carbon dioxide is released. However, this method requires a special heating system to provide a heat source for the regeneration of the adsorbent, and is complicated and costly to operate.
In order to solve the problems, the application provides a solar-powered rotary air carbon catcher, a carbon capturing system and a method.
Fig. 1 is a block diagram of a solar-powered rotary air carbon catcher according to an embodiment of the present application. As shown in fig. 1, the solar-powered rotary air carbon trap includes a carbon dioxide adsorbent unit 101, a rotating shaft 102, a carbon dioxide adsorption chamber 103, a carbon dioxide desorption chamber 104, a transitional sealing zone 105, and a residual gas purge zone 106. The carbon dioxide adsorbent unit 101 is cylindrical and is used for placing carbon dioxide adsorbent, and a plurality of grids formed by a plurality of partition boards passing through the central axis of the carbon dioxide adsorbent unit are arranged in the carbon dioxide adsorbent unit 104, and the carbon dioxide adsorbents in the grids are isolated from each other. To illustrate the structure of the rotary air carbon trap, fig. 2 is a cross-sectional view of section A-A of fig. 1, wherein the circular area is a cross-sectional view of the carbon dioxide adsorbent unit 101, and wherein each sector area is a corresponding cross-sectional area of the respective grid. The carbon dioxide adsorbent placed in the carbon dioxide adsorbent unit 101 may be granular or monolithic, for example, the carbon dioxide adsorbent placed in the carbon dioxide adsorbent unit 101 may be in the same size as the corresponding grid, and the carbon dioxide adsorbent placed in the carbon dioxide adsorbent unit 101 may be granular, that is, the carbon dioxide adsorbent unit 101 fixes the granular carbon dioxide adsorbent in the corresponding grid through a cylindrical frame. As an example, the carbon dioxide adsorbent placed in the carbon dioxide adsorbent unit 101 may be a porous material loaded with organic amine (e.g., zeolite, silica gel, molecular sieve, near organic framework, etc.).
As shown in fig. 1, a rotation shaft 102 is fixed to the center of the carbon dioxide adsorbent unit 101 in the axial direction, for rotating at a preset speed and direction, and driving the carbon dioxide adsorbent unit 101 to rotate. The carbon dioxide adsorbing chamber 103 is arranged at the lower part of the rotary type air carbon trap, an air inlet and an air outlet are arranged at two sides of the carbon dioxide adsorbing chamber 103, a part of the carbon dioxide adsorbent unit 101 is arranged in the carbon dioxide adsorbing chamber 103, and the carbon dioxide adsorbing chamber 103 is used for adsorbing carbon dioxide in air based on the carbon dioxide adsorbent rotating into the carbon dioxide adsorbing chamber. The carbon dioxide desorption chamber 104 is provided at an upper portion of the rotary air carbon trap, and the carbon dioxide desorption chamber 104 is provided with a desorption gas outlet, a part of the carbon dioxide adsorbent unit 101 is located in the carbon dioxide desorption chamber 104, and the carbon dioxide desorption chamber 104 is used for obtaining sunlight and performing desorption treatment on the carbon dioxide adsorbent rotated into the carbon dioxide desorption chamber based on energy of the sunlight. That is, since the carbon dioxide adsorbent unit 101 rotates following the rotation shaft 102, the carbon dioxide adsorbent chamber 103 adsorbs carbon dioxide in the air based on the carbon dioxide adsorbent rotated into its region in real time, while the carbon dioxide desorption chamber 104 desorbs the carbon dioxide machine adsorbed in the carbon dioxide adsorbent rotated into its region in real time, thereby realizing that the adsorption process and the desorption process are performed simultaneously in the same apparatus.
In some embodiments of the present application, as shown in fig. 1 and 2, a transition sealing region 105 is provided between the carbon dioxide desorption chamber 104 and the carbon dioxide adsorption chamber 103 in a rotation direction along the rotation shaft 102, for sealing the carbon dioxide adsorbent corresponding to the grille rotated into the transition sealing region, so as to prevent air in the carbon dioxide adsorption chamber 103 from leaking into the carbon dioxide desorption chamber 104. The grille rotating into the transition sealing zone refers to a grille completely located in the transition sealing zone, and if a portion of the grille is located in the transition sealing zone 105 and a portion of the grille is located in the carbon dioxide desorption chamber 104, the carbon dioxide adsorbent in the grille is still in the desorption process, i.e. the grille is not completely located in the transition sealing zone.
Further, a residual gas purge zone 106 is provided between the carbon dioxide adsorption chamber 103 and the carbon dioxide desorption chamber 104 in the rotation direction along the rotation shaft 102, and the residual gas purge zone is provided with a purge gas outlet for connection with a purge pump. The residual gas purge zone 106 is used to vent air from the carbon dioxide adsorbent pores corresponding to the grid rotated into its region. As shown in fig. 2, if the rotation direction of the rotation in the rotary air carbon trap is counterclockwise, the residual gas purge region 106 is a region between the carbon dioxide adsorbing chamber 103 and the carbon dioxide desorbing chamber 104 along the rotation direction. The residual gas purging area 106 can prevent air in the carbon dioxide adsorption chamber 103 from leaking into the carbon dioxide desorption chamber 104, and can also discharge air in the carbon dioxide adsorbent pores corresponding to the grids in the area under the action of a purging pump, so that the purity of the captured carbon dioxide is improved.
In some embodiments of the present application, as shown in fig. 1, a top of the carbon dioxide desorption chamber 104 of the rotary air trap may be a light-transmitting heat-insulating material, such as glass, polycarbonate, polymethyl methacrylate, etc., through which sunlight is received, the sunlight is made to enter the carbon dioxide desorption chamber 104, and the sunlight is made to be irradiated onto a carbon dioxide adsorbent located in the carbon dioxide desorption chamber 104, so that the carbon dioxide desorption chamber 104 performs a desorption process on the carbon dioxide adsorbent rotated into the carbon dioxide desorption chamber based on the energy of the sunlight.
In other embodiments of the present application, as shown in fig. 1 and 2, the phase-change heat storage material is disposed on the inner side of the carbon dioxide desorption chamber 104, so that when sunlight is sufficient, the temperature of the carbon dioxide desorption chamber 104 reaches a temperature exceeding the phase-change temperature of the phase-change heat storage material, and the phase-change heat storage material undergoes a phase change to absorb excessive heat for storage. When the sunlight is insufficient, the temperature of the carbon dioxide desorption chamber 104 is lower than the phase change temperature of the phase change heat storage material, and the phase change heat storage material releases the stored heat to reduce the temperature fluctuation range of the carbon dioxide desorption chamber and also prolong the working time of the carbon dioxide desorption chamber 104. As an example, the phase change heat storage material disposed on the inner side of the carbon dioxide desorption chamber 104 may have a phase change temperature in the range of 60-120 ℃, such as RT110 paraffin 、Ba(OH)2·8H2O、CaBr2·4H2O、MgCl2·6H2O、Mg(NO3)2·6H2O、 erythritol.
In still other embodiments of the present application, as shown in fig. 1 and 2, the outer surface of the carbon dioxide adsorbent unit 101 may be coated with a solar heat absorbing coating to enhance absorption of sunlight and conversion of heat, and to increase the temperature of the carbon dioxide desorption chamber 104 and the temperature of the carbon dioxide adsorbent in the carbon dioxide desorption chamber 104, so that the desorption rate of carbon dioxide may be increased.
As shown in fig. 1 and 2, the rotation speed of the rotating shaft 102 in the rotary air carbon trap may be a preset fixed speed, and the rotation direction may also be preset. To increase the efficiency of the system's air carbon capture, the rotational speed of the rotating shaft 102 may also be determined based on the temperature of the carbon dioxide stripping chamber 104. It is understood that the rotation speed of the rotation shaft 102 corresponds to the rotation speed of the carbon dioxide adsorbent unit 101, and that the desorption time of the carbon dioxide adsorbent can be adjusted by adjusting the rotation speed of the carbon dioxide adsorbent unit 101. When the sunlight is strong and the temperature of the carbon dioxide desorption chamber 104 is high, the desorption time required by the carbon dioxide adsorbent is short, and the rotation speed of the carbon dioxide adsorbent unit 101 can be increased. When the sunlight is weak and the temperature of the carbon dioxide desorption chamber 104 is low, the desorption time required for the carbon dioxide adsorbent is long, i.e., the rotation speed of the carbon dioxide adsorbent unit 101 can be reduced. As an example, a correspondence relationship between the temperature of the carbon dioxide desorption chamber 104 and the rotational speed of the rotational shaft is configured in the controller of the rotational shaft 102, the rotational speed of the rotational shaft 102 is determined by acquiring the temperature of the carbon dioxide desorption chamber 104 in real time, and the rotational shaft 102 is controlled to rotate at the corresponding rotational speed.
According to the solar-heating rotary air carbon capture device, carbon dioxide in air is adsorbed, and the adsorbed carbon dioxide is desorbed based on the energy of sunlight, so that the carbon dioxide in the air is captured. In the scheme, the rotary air carbon catcher comprises the carbon dioxide adsorption chamber and the carbon dioxide desorption chamber, so that the carbon dioxide adsorption process and the carbon dioxide desorption process are completed in the adsorption stage in the same equipment, and the complexity of an air carbon capturing system is reduced. In addition, the residual air purge zone in the rotary air carbon trap can vent residual air in the carbon dioxide adsorbent to enhance the purity of the captured carbon dioxide. In addition, the carbon dioxide desorption chamber adopts solar energy as a desorption heat source, and can realize the regeneration of the adsorbent without a special heating system, so that the energy consumption can be saved, the complexity of the system can be reduced, and the flexibility of the arrangement position of the system can be improved.
In order to achieve the above embodiment, the present application provides a solar-powered rotary air-carbon capture system.
Fig. 3 is a block diagram of a solar-powered rotary air-carbon capture system according to an embodiment of the present application. As shown in fig. 3, the system includes: a rotary air carbon trap 301, an induced draft fan 302, a purge pump 303, a desorption pump 304, and a carbon dioxide storage module 305. The rotary air carbon trap 301 is a solar-powered rotary air carbon trap as described in the above embodiments, and the structure thereof is shown in fig. 1 to 2, and will not be described herein.
In some embodiments of the present application, the rotary air carbon trap 301 is used for adsorbing carbon dioxide in air and desorbing the adsorbed carbon dioxide based on the energy of sunlight. The induced draft fan 302 is connected to an air outlet of the rotary air carbon trap 301, and is configured to allow air to enter from the air inlet, adsorb the air by the carbon dioxide adsorbent, and then discharge clean air from the air outlet. The purge pump 303 is connected to a purge gas outlet of a residual gas purge zone in the rotary air carbon trap 301, and the purge pump 303 is used for discharging air in carbon dioxide adsorbent pores corresponding to a grid in the residual gas purge zone. An inlet of the desorption pump 304 is connected to a desorption gas outlet of the rotary air carbon trap 301, and is used for discharging carbon dioxide gas obtained by the desorption process. The carbon dioxide storage module 305 is connected to an outlet of the desorption pump 504 for storing the captured carbon dioxide gas.
That is, the adsorption process and desorption process in the solar-powered rotary air-carbon capture system may be performed simultaneously. Wherein, air enters from the air inlet of the carbon dioxide adsorption chamber under the action of the induced draft fan, carbon dioxide in the air is adsorbed under the action of the carbon dioxide adsorbent in the carbon dioxide adsorption chamber, and clean air without carbon dioxide is discharged into the atmosphere through the air outlet. Sunlight enters the carbon dioxide desorption chamber to raise the temperature of the carbon dioxide adsorbent in the carbon dioxide desorption chamber, so that the adsorbed carbon dioxide is released from the carbon dioxide adsorbent, and the released carbon dioxide is discharged to the carbon dioxide storage module through the desorption gas outlet under the action of the vacuum pump.
As one embodiment, as shown in fig. 3, carbon dioxide storage module 305 may include: a buffer tank 305-1, a compressor 305-2, and a carbon dioxide storage tank 305-3. Wherein an inlet of the buffer tank 305-1 is connected to an outlet of the desorption pump 304, and the buffer tank 305-1 is used for storing the trapped carbon dioxide gas. An inlet of the compressor 305-2 is connected to an outlet of the buffer tank 305-1, and the compressor 305-2 is configured to compress the captured carbon dioxide gas. The carbon dioxide storage tank 305-3 is connected to an outlet of the compressor 305-2, and the carbon dioxide storage tank 305-3 is used for storing the carbon dioxide liquid obtained after compression.
It should be noted that, when the solar-heating rotary air carbon capture system in the embodiment of the application is in operation, the operating temperature of the carbon dioxide adsorption chamber in the rotary air carbon capture device is ambient temperature, and in order to overcome the resistance of the carbon dioxide adsorbent, the operating pressure of the rotary air carbon capture system can be micro negative pressure. The residual gas purge zone operating temperature is ambient and the operating pressure ranges from-0.15 bar to-0.05 bar. The operating temperature range of the carbon dioxide desorption chamber can be 60-150 ℃, preferably the operating temperature range of the carbon dioxide desorption chamber is 80-120 ℃, and the operating pressure of the carbon dioxide desorption chamber is adjusted by a desorption pump and is kept consistent with the operating pressure of the residual gas purging zone so as to ensure that the residual gas purging zone gas and the carbon dioxide desorption chamber gas do not permeate each other.
According to the solar-heating rotary air carbon capture system provided by the embodiment of the application, carbon dioxide in air is adsorbed through the rotary air carbon capture device, the adsorbed carbon dioxide is desorbed based on the energy of sunlight, and the desorbed carbon dioxide is stored by the carbon dioxide storage module. In the scheme, the rotary air carbon catcher comprises the carbon dioxide adsorption chamber and the carbon dioxide desorption chamber, so that the carbon dioxide adsorption process and the carbon dioxide desorption process are completed in the adsorption stage in the same equipment, and the complexity of an air carbon capturing system is reduced. In addition, the residual air purge zone in the rotary air carbon trap can vent residual air in the carbon dioxide adsorbent to enhance the purity of the captured carbon dioxide. In addition, the carbon dioxide desorption chamber adopts solar energy as a desorption heat source, and can realize the regeneration of the adsorbent without a special heating system, so that the energy consumption can be saved, the complexity of the system can be reduced, and the flexibility of the arrangement position of the system can be improved.
In order to achieve the above embodiment, the present application provides a solar-powered rotary air carbon capture method.
Fig. 4 is a flow chart of a solar-heating rotary air carbon capturing method according to an embodiment of the application. It should be noted that, the solar-heating rotary air-carbon capturing method according to the embodiment of the present application is applied to the solar-heating rotary air-carbon capturing system in the above embodiment. As shown in fig. 4, the method comprises the steps of:
Step 401, under the action of an induced draft fan, the carbon dioxide adsorption chamber of the rotary air carbon trap is based on the carbon dioxide adsorbent rotated into the carbon dioxide adsorption chamber in the carbon dioxide adsorbent unit, and adsorbs carbon dioxide in air, and clean air is discharged.
And step 402, exhausting air in the carbon dioxide adsorbent pores corresponding to the grids in the residual gas purging area of the rotary air carbon trap under the action of the purging pump.
And step 403, the carbon dioxide desorption chamber of the rotary air carbon trap is used for carrying out desorption treatment on the carbon dioxide adsorbent rotating into the carbon dioxide desorption chamber in the carbon dioxide adsorbent unit based on the energy of sunlight, and discharging the trapped carbon dioxide under the action of a desorption pump.
The carbon dioxide storage module stores 404 the captured carbon dioxide gas.
According to the rotary air carbon capturing method adopting solar heat supply, carbon dioxide in air is adsorbed through the rotary air carbon capturing device, air in carbon dioxide adsorbent pores corresponding to grids in a residual gas purging area is discharged through the purging pump, the adsorbed carbon dioxide is desorbed based on the energy of sunlight, and the desorbed carbon dioxide is stored through the carbon dioxide storage module. In the scheme, the rotary air carbon catcher comprises the carbon dioxide adsorption chamber and the carbon dioxide desorption chamber, so that the carbon dioxide adsorption process and the carbon dioxide desorption process are completed in the adsorption stage in the same equipment, and the complexity of an air carbon capturing system is reduced. In addition, under the action of a purge pump, residual air in the carbon dioxide adsorbent in a residual gas purge zone in the rotary air carbon trap can be discharged, so that the purity of the trapped carbon dioxide is improved. In addition, the carbon dioxide desorption chamber adopts solar energy as a desorption heat source, and can realize the regeneration of the adsorbent without a special heating system, so that the energy consumption can be saved, the complexity of the system can be reduced, and the flexibility of the arrangement position of the system can be improved.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present application, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and additional implementations are included within the scope of the preferred embodiment of the present application in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order from that shown or discussed, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the embodiments of the present application.
While embodiments of the present application have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the application, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the application.
Claims (3)
1. A solar-powered rotary air carbon catcher, comprising: the device comprises a carbon dioxide adsorbent unit, a rotating shaft, a carbon dioxide adsorption chamber, a carbon dioxide desorption chamber, a transition sealing area and a residual gas purging area; wherein:
the carbon dioxide adsorbent unit is cylindrical and is used for placing carbon dioxide adsorbents, a plurality of grids formed by a plurality of partition plates passing through the central axis of the carbon dioxide adsorbent unit are arranged in the carbon dioxide adsorbent unit, and the carbon dioxide adsorbents in the grids are isolated from each other;
The rotating shaft is fixed at the axial center of the carbon dioxide adsorbent unit, and is used for rotating according to a preset speed and direction and driving the carbon dioxide adsorbent unit to rotate;
The carbon dioxide adsorption chamber is arranged at the lower part of the rotary air carbon capture device, an air inlet and an air outlet are arranged at two sides of the carbon dioxide adsorption chamber, one part of the carbon dioxide adsorbent units is positioned in the carbon dioxide adsorption chamber, and the carbon dioxide adsorption chamber is used for carrying out adsorption treatment on carbon dioxide in the air based on the carbon dioxide adsorbent rotating into the carbon dioxide adsorption chamber;
the carbon dioxide desorption chamber is arranged at the upper part of the rotary air carbon trap, a desorption gas outlet is arranged in the carbon dioxide desorption chamber, one part of the carbon dioxide adsorbent units is positioned in the carbon dioxide desorption chamber, and the carbon dioxide desorption chamber is used for acquiring sunlight and carrying out desorption treatment on the carbon dioxide adsorbent rotating into the carbon dioxide desorption chamber based on the energy of the sunlight;
the transition sealing area is arranged along the rotation direction of the rotation shaft, and is arranged between the carbon dioxide desorption chamber and the carbon dioxide adsorption chamber and used for sealing the carbon dioxide adsorbent corresponding to the grid rotating into the transition sealing area;
The residual gas purging area is arranged between the carbon dioxide adsorption chamber and the carbon dioxide desorption chamber along the rotation direction of the rotation shaft, and is provided with a purging gas outlet; the residual gas purging area is used for discharging air in the carbon dioxide adsorbent pores corresponding to the grids in the area;
The inner side surface of the carbon dioxide desorption chamber is provided with a phase change heat storage material;
Wherein the outer surface of the carbon dioxide adsorbent unit is coated with a solar heat absorption coating;
wherein the top of the carbon dioxide desorption chamber is made of a light-transmitting heat-insulating material;
the rotational speed of the rotational shaft is determined based on the temperature of the carbon dioxide desorption chamber.
2. A solar-powered rotary air carbon capture system, comprising:
The rotary air carbon trap as claimed in claim 1, wherein the rotary air carbon trap is used for adsorbing carbon dioxide in air and desorbing the adsorbed carbon dioxide based on the energy of sunlight;
The induced draft fan is connected with the air outlet of the rotary air carbon catcher and is used for enabling air to enter from the air inlet, adsorbing the air through the carbon dioxide adsorbent and then discharging clean air from the air outlet;
the purge pump is connected with a purge gas outlet of the residual gas purge zone in the rotary air carbon trap; the purging pump is used for discharging air in the carbon dioxide adsorbent pores corresponding to the grids in the residual gas purging zone;
The inlet of the desorption pump is connected with a desorption gas outlet of the rotary air carbon trap and is used for discharging carbon dioxide gas obtained by desorption treatment;
The carbon dioxide storage module is connected with the outlet of the desorption pump and is used for storing the captured carbon dioxide gas;
the carbon dioxide storage module comprises a buffer tank, a compressor and a carbon dioxide storage tank; wherein:
the inlet of the buffer tank is connected with the outlet of the desorption pump, and the buffer tank is used for storing trapped carbon dioxide gas;
the inlet of the compressor is connected with the outlet of the buffer tank, and the compressor is used for compressing the trapped carbon dioxide gas;
the carbon dioxide storage tank is connected with an outlet of the compressor, and the carbon dioxide storage tank is used for storing carbon dioxide liquid obtained after compression.
3. A solar-powered rotary air-carbon capture method, characterized in that the method is applied to the solar-powered rotary air-carbon capture system of claim 2, comprising:
under the action of the induced draft fan, the carbon dioxide adsorption chamber of the rotary air carbon capture device adsorbs carbon dioxide in the air based on the carbon dioxide adsorbent rotated into the carbon dioxide adsorption chamber in the carbon dioxide adsorbent unit, and clean air is discharged;
Under the action of the purge pump, discharging air in carbon dioxide adsorbent pores corresponding to grids in a residual gas purge zone of the rotary air carbon trap;
the carbon dioxide desorption chamber of the rotary air carbon trap is used for carrying out desorption treatment on the carbon dioxide adsorbent rotating into the carbon dioxide desorption chamber in the carbon dioxide adsorbent unit based on the energy of sunlight, and discharging the trapped carbon dioxide gas under the action of the desorption pump;
the carbon dioxide storage module stores the captured carbon dioxide gas;
the carbon dioxide storage module comprises a buffer tank, a compressor and a carbon dioxide storage tank; wherein:
the inlet of the buffer tank is connected with the outlet of the desorption pump, and the buffer tank is used for storing trapped carbon dioxide gas;
the inlet of the compressor is connected with the outlet of the buffer tank, and the compressor is used for compressing the trapped carbon dioxide gas;
the carbon dioxide storage tank is connected with an outlet of the compressor, and the carbon dioxide storage tank is used for storing carbon dioxide liquid obtained after compression.
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