CN104229774A - CO2 decomposition device - Google Patents
CO2 decomposition device Download PDFInfo
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- CN104229774A CN104229774A CN201410478080.1A CN201410478080A CN104229774A CN 104229774 A CN104229774 A CN 104229774A CN 201410478080 A CN201410478080 A CN 201410478080A CN 104229774 A CN104229774 A CN 104229774A
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- cylindrical shell
- carbon dioxide
- decomposition device
- cylinder body
- decomposition
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Abstract
The invention discloses a CO2 decomposition device, relates to the technical field of CO2 decomposition, and provides a CO2 decomposition device which has high CO2 decomposition rate, high plasma discharging efficiency and high CO2 decomposition stability. The main technical scheme is that the CO2 decomposition device comprises a first cylinder body, a grounding electrode, a conductive metal bar and solid discharge media, wherein a gas inlet is formed in one end of the first cylinder body, and a gas outlet is formed in the other end; the grounding electrode is arranged outside the first cylinder body; the conductive metal bar is fixed in the first cylinder body filled with the solid discharge media; and the first cylinder body is sleeved with a second cylinder body, a liquid inlet is formed in one end of the second cylinder body, a liquid outlet is formed in the other end, and a cavity between the first cylinder body and the second cylinder body is filled with a circulating conducting liquid serving as the grounding electrode.
Description
Technical field
The invention belongs to carbon dioxide decomposition technical field, the carbon dioxide decomposition device used under particularly relating to room temperature condition.
Background technology
There is the energy of 80% in the whole world from conventional fossil fuel, as oil, coal and Sweet natural gas etc., and consequent CO
2the environment that greenhouse gases cause and Climatic issues more and more serious.Now, carbon trapping has attracted the extensive concern of people with stocking system, is control CO
2a large amount of discharges provide possibility.Current a kind of CCS technology that can reduce discharging on a large scale mainly by compressor by CO
2be compressed to 10 ~ 15MPa pressure range, sealed up for safekeeping for a long time to deep-sea salineaquifers or abandoned well by Cemented filling, this technology can reduce CO
2quantity discharged 20% ~ 40%.But the predicaments such as this technology exists that cost is high, energy consumption is large and efficiency is lower.If can by CO
2effectively trap and store, and being translated into CH
4or CH
3the chemical such as OH, then can realize CO
2recycle and " zero release ".
In recent years, by CO
2direct Resolution is C, CO, O
2cause the extensive concern of people.Particularly Tokyo polytechnical university investigated a kind of magnetite novel substance applying oxonium ion omission, at 250-350 DEG C of Direct Resolution CO
2novel method.The deposition of carbon of decomposing generation, on magnetite, is reacted with water vapour and is generated H at 400 DEG C
2, with H at 400-600 DEG C
2reaction generates CH
4.Oxygen vacancy wustite (MFe
2o
4-δ, δ >0, M=Mg, Zn, Cu, Co, Mn, Ni, Fe) and decompose CO
2become the activity of C higher, but CO
2decomposition temperature more than 200 DEG C.
Plasma body, as the 4th state of material, shows the specific performance different from other state of matter, is a kind of highly effective molecule activation means, particularly at CO
2decomposition aspect, has higher chemical reactivity.By plasma body, CO
2the large good fortune of decomposition temperature reduce.Even if at room temperature, plasma body still has enough energy reactant molecule to be excited, dissociates, and forms the particle of various activation, reaction species is in have the overactivity state compared with extensive chemical activity.But also there is no CO in prior art
2rate of decomposition discharging efficiency that is high, plasma body high, and stability is strong and the carbon dioxide decomposition device of long service life.
Summary of the invention
In view of this, the embodiment of the present invention provides a kind of carbon dioxide decomposition device, and main purpose is to provide a kind of CO
2the high and CO of rate of decomposition discharging efficiency that is high, plasma body
2divide the carbon dioxide decomposition device that stability of solution is high.
In order to solve the problems of the technologies described above, present invention employs following technical scheme:
On the one hand, embodiments provide a kind of carbon dioxide decomposition device, it comprises:
First cylindrical shell, one end is provided with gas feed, and the other end is provided with pneumatic outlet;
Ground-electrode, is arranged on described first cylindrical shell outside;
Conducting metal rod, is fixed on described first inner barrel;
Solid discharge medium, is filled in described first cylindrical shell;
Carbon dioxide decomposition device as above, further, the outside coated one deck conductive mesh of described first cylindrical shell, as described ground-electrode.
Carbon dioxide decomposition device as above, further, described first cylindrical shell outer cover is provided with the second cylindrical shell, one end of second cylindrical shell is provided with fluid inlet, the other end is provided with liquid outlet, is full of circulation conducting liquid in the cavity between the first cylindrical shell and the second cylindrical shell, as described ground-electrode.
Carbon dioxide decomposition device as above, further, described conducting liquid is selected from the one in water, the NaCl aqueous solution or the KCl aqueous solution.
Carbon dioxide decomposition device as above, further, described solid discharge medium is solid glass pearl, zirconium dioxide pearl or alumina bead.
Carbon dioxide decomposition device as above, further, the diameter of described solid discharge medium is in 10um to 5mm scope.
Carbon dioxide decomposition device as above, further, described conducting metal rod is copper rod or iron staff.
Compared with prior art, beneficial effect of the present invention is:
1, between the first cylindrical shell and conducting metal rod, fill solid discharge medium, avoid the excess deposition of discharge electrode (i.e. conducting metal rod) upper C, in device in the past, C is deposited on discharge electrode, in this patent, by adding filled media, part CO
2at filled media Surface disintegration, part C has been deposited on filled media surface, substantially increases CO
2divide stability of solution, and the work-ing life of device.
2, porous material has higher specific surface area and easy CO absorption
2but, due to CO
2the duct being easily adsorbed on porous material is inner, is not vulnerable to the effect of plasma body, have impact on CO
2transformation efficiency.Solid sphere material compares porous material, effectively prevent CO
2in the absorption of inside, duct, make whole CO
2the equal effect that can receive plasma body.Therefore, relative to independent dielectric barrier discharge, add solid discharge medium, substantially increase CO
2rate of decomposition.
3, due to CO
2decomposition is a thermopositive reaction, and higher temperature is unfavorable for the carrying out reacted.Be provided with the second cylindrical shell in the first cylindrical shell outer cover, in the cavity between the first cylindrical shell and the second cylindrical shell, be full of circulation conducting liquid, as described ground-electrode.Circulation conducting liquid plays the effect to decomposer cooling, effectively can avoid the rising of temperature of reaction, improves CO
2rate of decomposition.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide a further understanding of the present invention, and form a application's part, schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
A kind of carbon dioxide decomposition device schematic diagram that Fig. 1 provides for the embodiment of the present invention;
Fig. 2 is application examples 1 carbon dioxide decomposition rate time history plot;
Fig. 3 is the composition profiles figure in application examples 1 after 10 hours;
Fig. 4 is application examples 2 carbon dioxide decomposition rate time history plot;
Fig. 5 is the composition profiles figure in application examples 2 after 10 hours.
In accompanying drawing, the list of parts representated by each label is as follows:
1, the first cylindrical shell, 11, pneumatic outlet, 12, gas feed, 2, conducting metal rod, 3, solid discharge medium, the 4, second cylindrical shell, 41, fluid inlet, 42, liquid outlet, 43, circulation conducting liquid.
Embodiment
Below in conjunction with specific embodiment, the present invention is described in further detail, but not as a limitation of the invention.
The embodiment of the present invention needs the problem solved to be to provide a kind of CO
2the high and CO of rate of decomposition discharging efficiency that is high, plasma body
2divide the carbon dioxide decomposition device that stability of solution is high.
As shown in Figure 1, be the carbon dioxide decomposition device of an embodiment of the present invention, it comprises:
First cylindrical shell 1, one end is provided with gas feed 12, and the other end is provided with pneumatic outlet 11;
Ground-electrode, is arranged on described first cylindrical shell outside;
Conducting metal rod 2, is fixed on described first inner barrel; In concrete implementation process, described conducting metal rod 2 is copper rod or iron staff, and other have the metal bar of electroconductibility, as aluminium bar, aluminium alloy bars, Copper alloy bar also as conducting metal rod, can not be restricted in embodiments of the present invention.
Solid discharge medium 3, is filled in described first cylindrical shell; In concrete implementation process, described solid discharge medium 3 is solid glass pearl, zirconium dioxide pearl or alumina bead.Preferably, the diameter of described solid discharge medium is in 10um to 5mm scope.
One end that described first cylindrical shell outer cover is provided with the second cylindrical shell 4, second cylindrical shell is provided with fluid inlet 41, and the other end is provided with liquid outlet 42, is full of circulation conducting liquid 43, as described ground-electrode in the cavity between the first cylindrical shell 1 and the second cylindrical shell 4.Preferably, described conducting liquid is selected from the one in water, the NaCl aqueous solution or the KCl aqueous solution.
The carbon dioxide decomposition device use procedure of above-described embodiment is as follows:
ON cycle device makes the circulation conducting liquid of certain temperature start to circulate, and flow direction is contrary with carbon dioxide gas flow path direction.To ground-electrode and discharge electrode energising, pass into carbon dioxide at the inlet mouth of the first cylindrical shell, carbon dioxide is decomposed by activation after entering the first cylindrical shell, and the gas after decomposition is derived by the air outlet of the first cylindrical shell simultaneously.
The beneficial effect of said apparatus is:
1, between the first cylindrical shell and conducting metal rod, fill solid discharge medium, avoid the excess deposition of discharge electrode (i.e. conducting metal rod) upper C, in device in the past, C is deposited on discharge electrode, in this patent, by adding filled media, part CO
2at filled media Surface disintegration, part C has been deposited on filled media surface, substantially increases CO
2divide stability of solution.2, solid sphere material compares porous material, effectively prevent CO
2in the absorption of inside, duct, make whole CO
2the equal effect that can receive plasma body.Therefore, relative to independent dielectric barrier discharge, add solid discharge medium, substantially increase CO
2rate of decomposition.3, due to CO
2decomposition is a thermopositive reaction, and higher temperature is unfavorable for the carrying out reacted.Be provided with the second cylindrical shell in the first cylindrical shell outer cover, in the cavity between the first cylindrical shell and the second cylindrical shell, be full of circulation conducting liquid, as described ground-electrode.Circulation conducting liquid plays the effect to decomposer cooling, effectively can avoid the rising of temperature of reaction, improves CO
2rate of decomposition.
In the carbon dioxide decomposition device of the another kind of embodiment of the present invention, comprising:
First cylindrical shell, one end is provided with gas feed, and the other end is provided with pneumatic outlet; Ground-electrode, is arranged on described first cylindrical shell outside; The outside coated one deck conductive mesh of described first cylindrical shell, as described ground-electrode.Conducting metal rod, is fixed on described first inner barrel; In concrete implementation process, described conducting metal rod is copper rod or iron staff, and other have the metal bar of electroconductibility, as aluminium bar, aluminium alloy bars, Copper alloy bar also as conducting metal rod, can not be restricted in embodiments of the present invention.Solid discharge medium, is filled in described first cylindrical shell; In concrete implementation process, described solid discharge medium is solid glass pearl, zirconium dioxide pearl or alumina bead.Preferably, the diameter of described solid discharge medium is in 10um to 5mm scope.
Following application examples uses device as shown in Figure 1 to carry out, and concrete mode is as follows:
Application examples 1
As shown in Figure 1, bushing core is placed a spirrillum ferrous metal rod as discharge electrode, the solid pearl of 3mm zirconium dioxide will be filled between inner core barrel and copper metal bar, between sleeve urceolus barrel and inner core barrel, be full of the recirculated water that circulative temperature is 50 DEG C, by CO
2flow-rate adjustment is 500 ml/min, and plasma discharge voltage is 100 volts, and electric current is 5.0 milliamperes, after 10 hours, and CO
2rate of decomposition can reach 52%.As shown in Figure 2, the composition profiles after 10 hours as shown in Figure 3 for the time dependent curve of its rate of decomposition.
Application examples 2
Bushing core is placed a copper metal bar as discharge electrode, the solid pearl of 2mm glass will be filled between inner core barrel and copper metal bar, the sodium chloride salt aqueous solution that circulative concentration is 0.7wt%, temperature is 40 DEG C is full of, by CO between sleeve urceolus barrel and inner core barrel
2flow-rate adjustment is 120 ml/min, and plasma discharge voltage is 80 volts, and electric current is 2.0 milliamperes, after 10 hours, and CO
2rate of decomposition can reach 39%, as shown in Figure 4 and Figure 5.
Above embodiment is only exemplary embodiment of the present invention, and be not used in restriction the present invention, protection scope of the present invention is defined by the claims.Those skilled in the art can in essence of the present invention and protection domain, and make various amendment or equivalent replacement to the present invention, this amendment or equivalent replacement also should be considered as dropping in protection scope of the present invention.
Claims (7)
1. a carbon dioxide decomposition device, is characterized in that, comprising:
First cylindrical shell, one end is provided with gas feed, and the other end is provided with pneumatic outlet;
Ground-electrode, is arranged on described first cylindrical shell outside;
Conducting metal rod, is fixed on described first inner barrel;
Solid discharge medium, is filled in described first cylindrical shell.
2. carbon dioxide decomposition device according to claim 1, is characterized in that, the outside coated one deck conductive mesh of described first cylindrical shell, as described ground-electrode.
3. carbon dioxide decomposition device according to claim 1, it is characterized in that, described first cylindrical shell outer cover is provided with the second cylindrical shell, one end of second cylindrical shell is provided with fluid inlet, the other end is provided with liquid outlet, circulation conducting liquid is full of, as described ground-electrode in cavity between first cylindrical shell and the second cylindrical shell.
4. carbon dioxide decomposition device according to claim 3, is characterized in that, described conducting liquid is selected from the one in water, the NaCl aqueous solution or the KCl aqueous solution.
5. the carbon dioxide decomposition device according to any one of claim 1-3, is characterized in that, described solid discharge medium is solid glass pearl, zirconium dioxide pearl or alumina bead.
6. carbon dioxide decomposition device according to claim 5, is characterized in that, the diameter of described solid discharge medium is in 10um to 5mm scope.
7. the carbon dioxide decomposition device according to any one of claim 1-3, is characterized in that, described conducting metal rod is copper rod or iron staff.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410478080.1A CN104229774A (en) | 2014-09-18 | 2014-09-18 | CO2 decomposition device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410478080.1A CN104229774A (en) | 2014-09-18 | 2014-09-18 | CO2 decomposition device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104229774A true CN104229774A (en) | 2014-12-24 |
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ID=52218799
Family Applications (1)
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|---|---|---|---|
| CN201410478080.1A Pending CN104229774A (en) | 2014-09-18 | 2014-09-18 | CO2 decomposition device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114733327A (en) * | 2022-04-19 | 2022-07-12 | 南京工业大学 | CO (carbon monoxide)2Integrated device for coupling decomposition and hydrogenation reaction |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102772989A (en) * | 2012-06-21 | 2012-11-14 | 浙江工业大学 | Plasma reactor based device and method for removing oxygen from biogases |
| CN103058328A (en) * | 2013-02-04 | 2013-04-24 | 清华大学深圳研究生院 | Method and system for degrading tetrabromobisphenol A in water |
| CN103204466A (en) * | 2013-04-24 | 2013-07-17 | 滨州学院 | Device and method for preparing hydrogen through temperature controlled continuous decomposition of hydrogen sulfide |
| KR101292932B1 (en) * | 2011-06-02 | 2013-08-02 | 제주대학교 산학협력단 | Apparatus and methods for producing hydrocarbons from carbon dioxide |
-
2014
- 2014-09-18 CN CN201410478080.1A patent/CN104229774A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101292932B1 (en) * | 2011-06-02 | 2013-08-02 | 제주대학교 산학협력단 | Apparatus and methods for producing hydrocarbons from carbon dioxide |
| CN102772989A (en) * | 2012-06-21 | 2012-11-14 | 浙江工业大学 | Plasma reactor based device and method for removing oxygen from biogases |
| CN103058328A (en) * | 2013-02-04 | 2013-04-24 | 清华大学深圳研究生院 | Method and system for degrading tetrabromobisphenol A in water |
| CN103204466A (en) * | 2013-04-24 | 2013-07-17 | 滨州学院 | Device and method for preparing hydrogen through temperature controlled continuous decomposition of hydrogen sulfide |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114733327A (en) * | 2022-04-19 | 2022-07-12 | 南京工业大学 | CO (carbon monoxide)2Integrated device for coupling decomposition and hydrogenation reaction |
| CN114733327B (en) * | 2022-04-19 | 2023-06-23 | 南京工业大学 | CO (carbon monoxide) 2 Integrated device for coupling decomposition and hydrogenation reaction |
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Application publication date: 20141224 |
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