CN116212592A - Carbon dioxide air direct-capturing coupling photocatalytic reduction system - Google Patents
Carbon dioxide air direct-capturing coupling photocatalytic reduction system Download PDFInfo
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- CN116212592A CN116212592A CN202310388222.4A CN202310388222A CN116212592A CN 116212592 A CN116212592 A CN 116212592A CN 202310388222 A CN202310388222 A CN 202310388222A CN 116212592 A CN116212592 A CN 116212592A
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- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 title claims abstract description 96
- 230000001699 photocatalysis Effects 0.000 title claims abstract description 53
- 229910002092 carbon dioxide Inorganic materials 0.000 title claims abstract description 48
- 239000001569 carbon dioxide Substances 0.000 title claims abstract description 48
- 230000009467 reduction Effects 0.000 title claims abstract description 21
- 230000008878 coupling Effects 0.000 title claims abstract description 10
- 238000010168 coupling process Methods 0.000 title claims abstract description 10
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 10
- 238000010531 catalytic reduction reaction Methods 0.000 claims abstract description 23
- 238000006722 reduction reaction Methods 0.000 claims abstract description 20
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 17
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 17
- 238000007146 photocatalysis Methods 0.000 claims abstract description 14
- 238000007789 sealing Methods 0.000 claims abstract description 8
- 230000003197 catalytic effect Effects 0.000 claims abstract description 7
- 239000000498 cooling water Substances 0.000 claims description 17
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 claims description 16
- 229910052753 mercury Inorganic materials 0.000 claims description 16
- 229910052724 xenon Inorganic materials 0.000 claims description 15
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 claims description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 13
- 239000007788 liquid Substances 0.000 claims description 12
- 239000003463 adsorbent Substances 0.000 claims description 10
- 239000007787 solid Substances 0.000 claims description 9
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 5
- 239000011941 photocatalyst Substances 0.000 claims description 4
- 239000002245 particle Substances 0.000 claims description 3
- 125000003277 amino group Chemical group 0.000 claims description 2
- 239000010409 thin film Substances 0.000 claims description 2
- 125000004122 cyclic group Chemical group 0.000 abstract description 4
- 238000006243 chemical reaction Methods 0.000 abstract description 3
- 239000003054 catalyst Substances 0.000 description 6
- 238000006555 catalytic reaction Methods 0.000 description 5
- 230000006872 improvement Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 229910010413 TiO 2 Inorganic materials 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000005431 greenhouse gas Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000013032 photocatalytic reaction Methods 0.000 description 2
- 230000009919 sequestration Effects 0.000 description 2
- 206010021143 Hypoxia Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000010408 film Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000007954 hypoxia Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000000116 mitigating effect Effects 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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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
- B01D53/14—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 absorption
- B01D53/1456—Removing acid components
- B01D53/1475—Removing carbon dioxide
-
- 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
- B01D53/0407—Constructional details of adsorbing systems
- B01D53/0438—Cooling or heating systems
-
- 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
- B01D53/14—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 absorption
- B01D53/1418—Recovery of products
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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
- B01D53/14—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 absorption
- B01D53/1425—Regeneration of liquid absorbents
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/08—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor
- B01J19/12—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor employing electromagnetic waves
- B01J19/122—Incoherent waves
- B01J19/127—Sunlight; Visible light
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2252/00—Absorbents, i.e. solvents and liquid materials for gas absorption
- B01D2252/20—Organic absorbents
- B01D2252/204—Amines
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/50—Carbon oxides
- B01D2257/504—Carbon dioxide
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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
- 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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Abstract
The invention discloses a carbon dioxide air direct-capturing coupling photocatalytic reduction system, which comprises a draught fan and CO 2 The device comprises a trapping device, a carbon collecting device, a photocatalysis device and a photocatalysis product collecting device; the induced draft fan is provided with an air inlet, and an outlet of the induced draft fan is connected to CO 2 Inlet of trapping device, CO 2 The outlet of the trapping device is connected to the inlet of the carbon collecting device, the outlet of the carbon collecting device is connected to the inlet of the photocatalytic device, and the outlet of the photocatalytic device is connected to the inlet of the photocatalytic product collecting device. The invention firstly realizes the collection, sealing and further utilization of the carbon dioxide through the carbon dioxide collecting device and the storage device, and then introduces the collected carbon dioxide into lightThe catalytic reduction device performs photocatalysis reaction, the catalytic product is collected and stored or is further utilized, and carbon dioxide generated after utilization is led into the trapping device to realize cyclic utilization.
Description
Technical Field
The invention belongs to the technical field of direct capture of carbon dioxide by air and the field of photocatalytic reduction of carbon dioxide, and particularly relates to a direct capture coupling photocatalytic reduction system of carbon dioxide air.
Background
In recent years, with the rapid development of global industry, the greenhouse effect is caused by long-term absorption of long-wave radiation by greenhouse gases, wherein the carbon dioxide content in the greenhouse gases is more than 70%. In 2022, 5 months, NOAA Mo Naluo sub-atmospheric baseline observation station measures that the highest concentration of carbon dioxide is 421ppm in millions of years, compared with the concentration of carbon dioxide before industrialization, the concentration of carbon dioxide is increased by more than 50%, the increase of the content of carbon dioxide can exacerbate greenhouse effect, cause global warming, and even cause drought, flood, ocean hypoxia and even tropical storm and other environmental problems. Thus, carbon dioxide capture and utilization is a current hot spot for mitigating the greenhouse effect.
Currently, carbon sequestration and sequestration technology (CCS) has grown very well over the years, but it can only capture carbon dioxide generated from a fixed source, can only slow the rate of carbon dioxide growth in air, and the carbon dioxide generated requires long distance transport.
Disclosure of Invention
The invention aims to provide a carbon dioxide air direct capturing and coupling photocatalytic reduction system, which is characterized in that firstly, carbon dioxide is collected and stored or further utilized through a carbon dioxide capturing device and a storage device, then captured carbon dioxide is introduced into the photocatalytic reduction device for photocatalytic reaction, catalytic products are collected and stored or further utilized, and carbon dioxide generated after utilization is introduced into the capturing device for recycling.
The invention is realized by adopting the following technical scheme:
a carbon dioxide air direct-capturing coupling photocatalytic reduction system comprises a draught fan and CO 2 The device comprises a trapping device, a carbon collecting device, a photocatalysis device and a photocatalysis product collecting device;
the induced draft fan is provided with an air inlet, and an outlet of the induced draft fan is connected to CO 2 Inlet of trapping device, CO 2 The outlet of the trapping device is connected to the inlet of the carbon collecting device, the outlet of the carbon collecting device is connected to the inlet of the photocatalytic device, and the outlet of the photocatalytic device is connected to the inlet of the photocatalytic product collecting device.
A further improvement of the invention is that the CO 2 The trapping device is internally provided with a solid or liquid adsorbent.
The invention is further improved in that the adsorbent adopts an amino group-loaded solid block adsorbent.
A further improvement of the invention is that the carbon collection device comprises a side-by-side arrangement of CO 2 Gas storage tank, CO 2 Sealing device and carbon dioxide photocatalysis buffer tank.
The invention is further improved in that the outlet of the photocatalytic product collecting device is also connected with a catalytic product storage device.
A further improvement of the invention is that the photocatalytic device is provided with solid particles or a thin film photocatalyst.
The invention is further improved in that the photocatalytic device comprises a solar catalytic reduction device and a xenon/mercury lamp catalytic reduction device which are arranged in parallel.
The solar catalytic reduction device is further improved in that the solar catalytic reduction device comprises a reactor (2), wherein a stirrer a (6) is arranged in the reactor (2), a transparent quartz glass cover (1) is arranged at the top of the reactor, a cooling water clamp a (3) is arranged at the outer side of the reactor, an air inlet pipe a (4), an air outlet pipe a (7) and a liquid taking pipe a (9) are communicated with the side wall of the reactor (2), and a water inlet pipe a (5) and a water outlet pipe a (8) are communicated with the side wall of the cooling water clamp a (3).
The invention is further improved in that the xenon/mercury lamp catalytic reduction device comprises a closed reactor (10), a cooling water clamp b (12) and a stirrer b (15) are arranged in the closed reactor (10), an air inlet pipe b (11), an air outlet pipe b (16) and a liquid taking pipe b (17) are communicated with the side wall of the closed reactor (10), and a water inlet pipe b (13) and a water outlet pipe b (14) which are communicated with the cooling water clamp b (12) are arranged at the top of the closed reactor (10).
The invention has at least the following beneficial technical effects:
(1) The carbon dioxide is directly captured from the air and utilized, so that the economical carbon capture can be realized, and waste materials can be changed into valuable materials to generate high added value substances.
(2) The solar catalytic reduction device can save energy, and simultaneously catalyze the solar catalytic reduction device and the xenon/mercury lamp catalytic reduction device according to the yield, and can realize continuous catalytic reaction for 24 hours to obtain high-added-value chemical substances.
(3) Carbon dioxide generated after the combustion and utilization of the catalytic products is introduced into the photocatalytic product collecting device, so that the zero carbon emission in the whole process can be realized, and the cyclic utilization can be realized.
Drawings
FIG. 1 is a schematic diagram of a direct capture and catalytic reduction system for carbon dioxide air according to the present invention.
Fig. 2 is a schematic structural view of the solar catalytic reduction device of the present invention.
FIG. 3 is a schematic diagram of a catalytic reduction device for a xenon/mercury lamp according to the present invention.
Reference numerals illustrate:
1 is a transparent quartz glass cover, 2 is a reactor, 3 is a cooling water clamp a,4 is an air inlet pipe a,5 is an air inlet pipe a,6 is a stirrer a,7 is an air outlet pipe a,8 is an air outlet pipe a, and 9 is a liquid taking pipe a;
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. It should be noted that, without conflict, the embodiments of the present invention and features of the embodiments may be combined with each other. The invention will be described in detail below with reference to the drawings in connection with embodiments.
As shown in fig. 1, the invention provides a carbon dioxide air direct capturing and coupling photocatalytic reduction system, which comprises:
(1) The system consists of a draught fan and CO 2 The device comprises a trapping device, a carbon collecting device, a photocatalysis product collecting device and a catalysis product storing device.
(2) Feeding air into CO through induced draft fan 2 The trapping device realizes direct trapping of carbon dioxide by air.
(3)CO 2 The solid or liquid adsorbent material is placed in the trapping device to trap carbon dioxide, the adsorbent adopts a supported amino solid block adsorbent, the catalyst can directly trap carbon dioxide in air, the adsorption process of the carbon dioxide is realized by heating, the desorbed carbon dioxide is stored in a storage tank of the next stage, and the adsorbent is regenerated after being cooled to realize cyclic utilization.
(4) The carbon collection device mainly comprises CO 2 Gas storage tank, CO 2 Sealing and storing and catalyzing the carbon dioxide photocatalysis buffer tank to be used.
(5) The photocatalysis device mainly comprises two reactors, wherein one reactor is a light-transmitting solar photocatalysis reduction device, and the other reactor is a sealed xenon/mercury lamp catalysis reduction device.
(6) The sunlight catalytic reduction device and the xenon/mercury lamp catalytic reduction device can alternately run in daytime and evening according to the demand of the product, and can also simultaneously perform catalytic reaction.
(7) The high added value substances produced by catalysis can be collected in a photocatalysis product collecting device and can be further combusted/generated for use.
(8) Carbon dioxide generated after combustion/power generation of high added value substances is introduced into CO 2 The trapping device realizes cyclic utilization and zero carbon emission in the whole process.
Wherein the photocatalytic device is filled with solid particles or film photocatalyst, wherein the photocatalytic device and the xenon lamp catalytic device adopt photocatalyst which responds in visible light range, such as Cu 2 O and BiVO 4 The photocatalytic activity can also be improved by metal/nonmetal doping, semiconductor compounding and other modes, and the absorption boundary of the photocatalytic activity is blue-shifted to improve the utilization rate of visible light, such as I-Cu 2 O、Pr-Cu 2 O、TiO 2 /Cu 2 O、NiO/InTaO 4 Etc. The common catalyst in the mercury lamp light catalytic device is TiO 2 And Ag, pt, cu, fe, cd element doped TiO 2 And the like.
As shown in fig. 2, the solar catalytic reduction device comprises a light source, a reactor 2, an air inlet pipe a4, an air outlet pipe a7, a liquid taking pipe a9, a cooling water clamp a3, an air inlet pipe a5, an air outlet pipe a8, a stirrer a6 and a full-automatic control valve. Wherein, be provided with agitator a6 in the reactor 2, the top is provided with printing opacity quartz glass lid 1, and the outside is provided with cooling water clamp a3, and the intercommunication has intake pipe a4, outlet duct a7 and liquid taking tube a9 on the lateral wall of reactor 2, and the intercommunication has inlet tube a5 and outlet pipe a8 on the lateral wall of cooling water clamp a 3.
The light source mainly comprises direct sunlight, a xenon lamp and a mercury lamp light source, wherein the light source of the sunlight catalytic reduction device is sunlight, the top of the device is a transparent quartz glass cover 1, the sealing mode is flange sealing, the sealing ring is made of rubber, and a cooling water clamp a3 is wrapped around the reactor 2 and the light for controlling the reaction temperature so as to ensure that the photocatalytic reaction is stably carried out.
As shown in fig. 3, the catalytic reduction device of the xenon/mercury lamp comprises a closed reactor 10, a cooling water clamp b12 and a stirrer b15 are arranged in the closed reactor 10, an air inlet pipe b11, an air outlet pipe b16 and a liquid taking pipe b17 are communicated with the side wall of the closed reactor 10, and a water inlet pipe b13 and a water outlet pipe b14 which are communicated with the cooling water clamp b12 are arranged at the top of the closed reactor 10. The xenon lamp light source and the mercury lamp light source adopted by the xenon/mercury lamp catalytic reduction device are selected according to the type of the catalyst, the xenon lamp light source is a simulated sunlight light source, the type of the catalyst is a catalyst which can be excited by visible light, and some catalysts only respond in the ultraviolet region, so that the mercury lamp light source is selected, the energy density of the mercury lamp is high, and the efficiency of photocatalytic reduction of carbon dioxide is high. The closed reactor 10 of the xenon/mercury lamp catalytic reduction device is a light-tight sealing device, the cooling water clamp b12 wraps the light source to prevent the reaction from being affected by the overhigh temperature of the light source, and two stirrers b15 are respectively arranged at two sides to realize uniform mixing of gas and water.
While the invention has been described in detail in the foregoing general description and with reference to specific embodiments thereof, it will be apparent to one skilled in the art that modifications and improvements can be made thereto. Accordingly, such modifications or improvements may be made without departing from the spirit of the invention and are intended to be within the scope of the invention as claimed.
Claims (9)
1. The direct carbon dioxide air capturing and coupling photocatalytic reduction system is characterized by comprising an induced draft fan and CO 2 The device comprises a trapping device, a carbon collecting device, a photocatalysis device and a photocatalysis product collecting device;
the induced draft fan is provided with an air inlet, and an outlet of the induced draft fan is connected to CO 2 Inlet of trapping device, CO 2 The outlet of the trapping device is connected to the inlet of the carbon collecting device, the outlet of the carbon collecting device is connected to the inlet of the photocatalytic device, and the outlet of the photocatalytic device is connected to the inlet of the photocatalytic product collecting device.
2. The carbon dioxide air direct capture coupled photocatalytic reduction system according to claim 1, wherein CO 2 The trapping device is internally provided with a solid or liquid adsorbent.
3. The direct carbon dioxide air capture coupled photocatalytic reduction system according to claim 2, wherein the adsorbent is an amine-loaded solid block adsorbent.
4. The carbon dioxide air direct capture coupled photocatalytic reduction system according to claim 1, wherein the carbon collection device comprises CO disposed in parallel 2 Gas storage tank, CO 2 Sealing device and carbon dioxide photocatalysis buffer tank.
5. The carbon dioxide air direct capture coupled photocatalytic reduction system according to claim 1, wherein the outlet of the photocatalytic product collection device is further coupled to a catalytic product storage device.
6. The direct carbon dioxide air capture coupled photocatalytic reduction system according to claim 1, wherein the photocatalytic device is filled with solid particles or a thin film photocatalyst.
7. The direct carbon dioxide air capture coupled photocatalytic reduction system according to claim 1, wherein the photocatalytic device comprises a solar catalytic reduction device and a xenon/mercury lamp catalytic reduction device arranged in parallel.
8. The direct carbon dioxide air capturing and coupling photocatalytic reduction system according to claim 7, wherein the solar catalytic reduction device comprises a reactor (2), a stirrer a (6) is arranged in the reactor (2), a light-transmitting quartz glass cover (1) is arranged at the top of the reactor, a cooling water clamp a (3) is arranged on the outer side of the reactor, an air inlet pipe a (4), an air outlet pipe a (7) and a liquid taking pipe a (9) are communicated on the side wall of the reactor (2), and a water inlet pipe a (5) and a water outlet pipe a (8) are communicated on the side wall of the cooling water clamp a (3).
9. The direct carbon dioxide air capturing and coupling photocatalytic reduction system according to claim 7, wherein the xenon/mercury lamp catalytic reduction device comprises a closed reactor (10), a cooling water clamp b (12) and a stirrer b (15) are arranged in the closed reactor (10), an air inlet pipe b (11), an air outlet pipe b (16) and a liquid taking pipe b (17) are communicated with the side wall of the closed reactor (10), and a water inlet pipe b (13) and a water outlet pipe b (14) which are communicated with the cooling water clamp b (12) are arranged at the top of the closed reactor (10).
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| CN202310388222.4A CN116212592A (en) | 2023-04-12 | 2023-04-12 | Carbon dioxide air direct-capturing coupling photocatalytic reduction system |
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