CN104174347A - Multiple-reaction-surface reactor structure with reverse arrangement of light source - Google Patents
Multiple-reaction-surface reactor structure with reverse arrangement of light source Download PDFInfo
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- CN104174347A CN104174347A CN201410447197.3A CN201410447197A CN104174347A CN 104174347 A CN104174347 A CN 104174347A CN 201410447197 A CN201410447197 A CN 201410447197A CN 104174347 A CN104174347 A CN 104174347A
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Abstract
The invention discloses a multiple-reaction-surface reactor structure with the reverse arrangement of a light source. The multiple-reaction-surface reactor structure is used for reducing carbon dioxide and belongs to the technical field of photocatalysis. The multiple-reaction-surface reactor structure comprises a multiple-reaction-surface reactor with 5-40 reaction channels, and the multiple-reaction-surface reactor is fixed in an experimental device through a base. Sealing devices are fixed on the upper edge and the lower edge of the multiple-reaction-surface reactor, and a channel inlet and a channel outlet are respectively fixed in the left edge and the right edge of the multiple-reaction-surface reactor. An ultraviolet light source adjoins to the channel outlet. The light source is reversely arranged, and a reaction surface with four catalyst coating surfaces is arranged in each reaction channel, so that limited photons are fully utilized, the efficiency of photocatalytic reaction is improved, and further the reaction yield is increased. By changing the input power of the light source and the relative position of a middle-layer cylinder wall surface, different irradiation fields can be obtained. By adopting a contrast experiment, the light source power and the positions of the reaction surfaces under the optimal reaction efficiency can be obtained. According to the multiple-reaction-surface reactor structure, the reaction yield is increased, and the methanol concentration of a reaction product is increased.
Description
Technical field
The invention belongs to photocatalysis technology field, particularly for many reaction surfaces structure of reactor of the reverse layout of a kind of light source of reducing carbon dioxide.
Background technology
Along with the development of economic society, the consumption of fossil fuel increases year by year.The burning of fossil fuel produces a large amount of carbon dioxide, has aggravated greenhouse effects, thereby it is extremely urgent to catch carbon dioxide.At present, carbon dioxide capture technology is caught before catching, fire after being mainly divided into combustion and this three major types of oxygen-enriched combusting.As a kind of mode of catching after combustion, photo catalytic reduction technology adopts additional light source to irradiate the semiconductor with photocatalytic activity, carbon dioxide reduction is become to the organic-fuels such as methyl alcohol, can alleviate well global greenhouse effect.
Light-catalyzed reaction efficiency is mainly relevant with catalyst activity, structure of reactor.As the carrier of light-catalyzed reaction, the structural behaviour of photo catalysis reactor directly affects transmission, the absorption of photon, and then affects reaction efficiency.Compare with other photo catalysis reactor, honeycomb optical fiber reactor combines optical fiber transmission leaded light with optical fiber load catalyst, both improved photon transmission efficiency and utilization ratio, has increased again response area, has higher light-catalyzed reaction performance.
Honeycomb optical fiber reactor is comprised of a large amount of straight parallel runners, and each independently arranges an optical fiber transmission leaded light in runner, and irradiation field and flow field in each runner (unit) are relatively independent.By increasing runner, can realize the scale of photo catalysis reactor.Because photo catalytic reduction reaction is mainly surface reaction, and single reaction channel only has two surfaces for reaction, and this directly affects the carrying out of absorption and the reaction of photon.The less subject matter that is still restriction honeycomb optical fiber reactor efficiency of reaction surface.
Summary of the invention
The many reaction surfaces structure of reactor that the object of this invention is to provide the reverse layout of a kind of light source, it is characterized in that, on firm banking 6, fix many reaction surfaces reactor 1, sealing device 7 is fixed on many reaction surfaces reactor, and Shang Xia 1 both sides, and feeder connection 3 and channel outlet 5 are separately fixed at many reaction surfaces reactor 1 the right and left; Ultraviolet source 2 is near channel outlet 5, and fixing with sealing device 7, and mixed stirring device 4 is arranged in feeder connection 3; Wherein in sealing device 7, be full of inert gas for isolated outside air; Before reaction, from feeder connection 3, pass into inert gas, testing fixture air-tightness, discharges the air in reactor on the other hand on the one hand, and object is to measure better the transformation efficiency of reaction;
Described many reaction surfaces reactor level is fixed on base 6, and is fixed in experimental provision by base.
Described many reaction surfaces reactor 1 comprises 5-40 separate single reaction channel 8, between each reaction channel, by ceramic material, is connected, and makes illumination, reacts non-interference, separate, thus the scale of the increase realization response device of reaction channel number.
The structure of described each reaction channel is at the center of reaction channel fixed fiber 9, fixes a middle level cylinder between optical fiber 9 and reaction channel internal face 13, thereby two newly-increased reaction surfaces form two flow channels 14: reaction surface increases to four layers by two-layer; Middle level cylinder inner wall face 11 and middle level cylinder outer wall face 12, and scribble catalyst on optical fiber outer surface 10, middle level cylinder inner wall face 11, middle level cylinder outer wall face 12 and reaction channel internal face 13; Therefore, under suitable light intensity, reactant carbon dioxide and steam further absorb photon efficiently, on more catalyst coat surface, participate in reaction.
The peripheral radius of described single reaction channel is 1.6mm, and middle level cylinder radius is 1.0mm, and wall thickness is 0.1mm, and length is 50mm.
The radius of described optical fiber is 0.5mm, and length is 60mm, and optical fiber two ends are fixed by fibre-optical fixator.
The invention has the beneficial effects as follows that core apparatus of the present invention is many reaction surfaces reactor, is fixed in experimental provision by base.By the reverse layout of light source, in each reaction channel, arrange the reaction surface that has four catalyst coat surfaces, limited photon is fully utilized, and the efficiency of light-catalyzed reaction is improved, and then improves reaction yield.By changing the input power of light source and the relative position of middle level cylinder wall, can obtain different irradiation fields.Adopt contrast experiment, the light source power in the time of can obtaining reacting optimum efficiency and the position of reaction surface.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is the schematic cross-section of many reaction surfaces reactor of the present invention.
Fig. 3 is the structural representation of the single reaction channel of reactor of the present invention.
Wherein the corresponding name of each numbering is called: many reaction surfaces reactor 1, ultraviolet source 2, feeder connection 3, mixed stirring device 4, channel outlet 5, firm banking 6, sealing device 7, single reaction channel 8, optical fiber 9, optical fiber outer surface 10, middle level cylinder inner wall face 11, middle level cylinder outer wall face 12, reactor wall face 13, flow channel 14.
The specific embodiment
The present invention proposes many reaction surfaces structure of reactor of the reverse layout of a kind of light source.Below in conjunction with accompanying drawing, the present invention is explained.
Figure 1 shows that many reaction surfaces structure of reactor schematic diagram of the reverse layout of light source of core apparatus of the present invention; On firm banking 6, fix many reaction surfaces reactor 1, and be fixed in experimental provision by base.Sealing device 7 is fixed on many reaction surfaces reactor, and Shang Xia 1 both sides, and feeder connection 3 and channel outlet 5 are separately fixed at many reaction surfaces reactor 1 the right and left; Ultraviolet source 2 is near channel outlet 5, and fixing with sealing device 7, and mixed stirring device 4 is arranged in feeder connection 3; Wherein in sealing device 7, be full of inert gas, the interference for isolated outside air to reaction, and measure exactly production concentration.Before reaction is carried out, feeder connection 3, many reaction surfaces reactor 1, channel outlet 5 all vacuumize with vavuum pump; Before reaction, from feeder connection 3, pass into inert gas, testing fixture air-tightness, discharges the air in reactor on the other hand on the one hand, and object is to measure better the transformation efficiency of reaction;
In the schematic cross-section of the many reaction surfaces reactor described in Fig. 2; many reaction surfaces reactor 1 comprises 5-40 separate single reaction channel 8; between each reaction channel, by ceramic material, connected; make illumination, react non-interference; separate, thus the scale of the increase realization response device of reaction channel number.The structure of each reaction channel is at the center of reaction channel fixed fiber 9, between optical fiber 9 and reaction channel internal face 13, fix a middle level cylinder, thereby newly-increased two reaction surfaces: middle level cylinder inner wall face 11 and middle level cylinder outer wall face 12, reaction surface increases to four layers by two-layer; And form two flow channels 14.On optical fiber outer surface 10, middle level cylinder inner wall face 11, middle level cylinder outer wall face 12 and reaction channel internal face 13, scribble the 1%NiO/InTaO that adulterated
4(sg) TiO
2beaded catalyst.Therefore, under suitable light intensity, reactant carbon dioxide and steam further absorb photon efficiently, on more catalyst coat surface, participate in reaction.
Operation principle of the present invention is first to open ultraviolet source 2, mixed stirring device 4, then at feeder connection 3 places, pass into the reactants such as carbon dioxide and steam, mixed stirring device 4 fully mixes reactant, reactant is fully mixed and even inflow reactor, this arrangement makes material concentration more even.Channel outlet 5 places by light source arrangement at reaction channel 8, the transmission direction of light is contrary with the flow direction of reactant, in each reaction channel, there are four reaction surfaces such as optical fiber outer surface 10, middle level cylinder inner wall face 11, middle level cylinder outer wall face 12 and reaction channel internal face 13 to participate in reaction simultaneously, and scribble the 1%NiO/InTaO that adulterated on optical fiber outer surface 10, middle level cylinder inner wall face 11, middle level cylinder outer wall face 12 and reaction channel internal face 13
4(sg) TiO
2beaded catalyst.Under suitable light intensity, light source power can be at 200W/m according to reaction needed
2to 800W/m
2scope in regulate.Reactant carbon dioxide and steam further absorb photon efficiently, on a plurality of catalyst coat surfaces, participate in reaction, and approximately, after 100s, product methyl alcohol and oxygen start to flow out from channel outlet 3, measure in real time the concentration of product.Reactive multilayer surface can make full use of limited photon, makes more photon arrive more catalyst surface and participates in reaction, improves reaction efficiency, obtains the product of higher concentration.
As shown in Figure 3, the peripheral radius of single reaction channel 8 is 1.6mm, and middle level cylinder radius is 1.0mm, and wall thickness is 0.1mm, and length is 50mm.The radius of optical fiber used is 0.5mm, and length is 60mm, and optical fiber two ends are fixed by fibre-optical fixator.
The present invention utilizes ultraviolet source irradiation, on catalyst coat surface, reacts, basicly stable in 200s afterproduct concentration.With the result 1.77 * 10 of reactor in the past
-5mol/m
3compare, production concentration of the present invention reaches 3.00 * 10
-5mol/m
3, improved 69.5%, absolutely proved experimental provision of the present invention reducing carbon dioxide produce more methanol fuel more efficiently.
Claims (6)
1. many reaction surfaces structure of reactor of the reverse layout of light source, it is characterized in that, at the upper fixing many reaction surfaces reactor (1) of firm banking (6), sealing device (7) is fixed on the upper and lower both sides of many reaction surfaces reactor (1), and feeder connection (3) and channel outlet (5) are separately fixed at many reaction surfaces reactor (1) the right and left; Ultraviolet source (2) is near channel outlet (5), and fixing with sealing device (7), and mixed stirring device (4) is arranged in feeder connection (3); Wherein in sealing device (7), be full of inert gas for isolated outside air; Before reaction, from feeder connection (3), pass into inert gas, testing fixture air-tightness, discharges the air in reactor on the other hand on the one hand, and object is to measure better the transformation efficiency of reaction.
2. many reaction surfaces structure of reactor of the reverse layout of a kind of light source according to claim 1, is characterized in that, it is upper that described many reaction surfaces reactor level is fixed on base (6), and be fixed in experimental provision by base.
3. many reaction surfaces structure of reactor of the reverse layout of a kind of light source according to claim 1; it is characterized in that; described many reaction surfaces reactor 1 comprises 5-40 separate single reaction channel (8); between each reaction channel, by ceramic material, connected; make illumination, react non-interference; separate, the scale of the increase realization response device by reaction channel number.
4. many reaction surfaces structure of reactor of the reverse layout of a kind of light source according to claim 1, it is characterized in that, the structure of described each reaction channel is at the center of reaction channel fixed fiber (9), between optical fiber (9) and reaction channel internal face (13), fix a middle level cylinder, thereby newly-increased two reaction surfaces: middle level cylinder inner wall face (11) and middle level cylinder outer wall face (12), reaction surface increases to four layers by two-layer; And form two flow channels (14), on optical fiber outer surface (10), middle level cylinder inner wall face (11), middle level cylinder outer wall face (12) and reaction channel internal face (13), scribble catalyst, under suitable light intensity, reactant carbon dioxide and steam further absorb photon efficiently, on more catalyst coat surface, participate in reaction.
5. many reaction surfaces structure of reactor of the reverse layout of a kind of light source according to claim 1, is characterized in that, the peripheral radius of described single reaction channel is 1.6mm, and middle level cylinder radius is 1.0mm, and wall thickness is 0.1mm, and length is 50mm.
6. many reaction surfaces structure of reactor of the reverse layout of a kind of light source according to claim 1, is characterized in that, the radius of described optical fiber is 0.5mm, and length is 60mm, and optical fiber two ends are fixed by fibre-optical fixator.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110354778A (en) * | 2019-08-19 | 2019-10-22 | 江苏集萃分子工程研究院有限公司 | A kind of continuous Photoreactor of novel multi-pass amount and its system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080308405A1 (en) * | 2007-06-14 | 2008-12-18 | Yu Yi Hui | Optical Fiber Photocatalytic Reactor And Process For The Decomposition Of Nitrogen Oxide Using Said Reactor |
| KR20120010300A (en) * | 2010-07-26 | 2012-02-03 | 현대자동차주식회사 | Photocatalytic reactor |
| CN102580651A (en) * | 2012-03-01 | 2012-07-18 | 西北大学 | Titanium dioxide photo-catalytic micro-reactor |
-
2014
- 2014-09-03 CN CN201410447197.3A patent/CN104174347B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080308405A1 (en) * | 2007-06-14 | 2008-12-18 | Yu Yi Hui | Optical Fiber Photocatalytic Reactor And Process For The Decomposition Of Nitrogen Oxide Using Said Reactor |
| KR20120010300A (en) * | 2010-07-26 | 2012-02-03 | 현대자동차주식회사 | Photocatalytic reactor |
| CN102580651A (en) * | 2012-03-01 | 2012-07-18 | 西北大学 | Titanium dioxide photo-catalytic micro-reactor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110354778A (en) * | 2019-08-19 | 2019-10-22 | 江苏集萃分子工程研究院有限公司 | A kind of continuous Photoreactor of novel multi-pass amount and its system |
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| CN104174347B (en) | 2016-04-20 |
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