CN104492233B - A kind of photoelectric synchronous catalytic oxidation NO reaction unit - Google Patents
A kind of photoelectric synchronous catalytic oxidation NO reaction unit Download PDFInfo
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- CN104492233B CN104492233B CN201410719787.7A CN201410719787A CN104492233B CN 104492233 B CN104492233 B CN 104492233B CN 201410719787 A CN201410719787 A CN 201410719787A CN 104492233 B CN104492233 B CN 104492233B
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Abstract
A kind of photoelectric synchronous catalytic oxidation NO reaction system, it is characterised in that: it includes reactor gas pretreating system (1), photoelectric synchronous catalytic oxidation NO system (2) and NO NO2‑NOxAnalysis system (3), the inlet end of photoelectric synchronous catalytic oxidation NO system (2) and outlet side are connected respectively reactor gas pretreating system (1) and NO NO2‑NOxAnalysis system (3)；The present invention forces electronics displacement by the additional constant potential of electrochemical workstation, it is to avoid electronics and hole-recombination, extends the life-span in hole, thus extends the service life of catalyst, improves the degradation efficiency of NO；From preparation method, improve the catalysis activity of photochemical catalyst simultaneously.
Description
Technical field
The invention belongs to photoelectrocatalysis reaction unit technical field, the most just relate to a kind of photoelectric synchronous and urge
Change oxidation NO reaction unit, it is possible to photochemical catalyst catalysis activity, extension fixture service life are greatly improved.
Background technology
Environmental pollution and energy shortage are current facing mankind and two big world difficult problems urgently to be resolved hurrily, administer ring
A kind of thinking of environment pollution says that pollutant carries out character change and becomes without nontoxic free of contamination thing exactly
Matter, at present, some pollution sources can be carried out harmless treatment and become a kind of preferably environment dirt by light-catalyzed reaction
Dye is administered and clear energy sources production technology.Light-catalyzed reaction is a kind of mode utilizing luminous energy to carry out material conversion,
It is one of the various ways of light and interaction between substances, is material institute under light and catalyst act on simultaneously
The chemical reaction carried out.Photocatalysis is catalytic chemistry, Optical Electro-Chemistry, Semiconductor Physics, material science and ring
The novel research field of the multi-crossed disciplines such as border science.Photocatalysis has can at room temperature deep reaction and can be straight
Connect and utilize solar energy as light source to drive the special performances such as reaction to become solution environmental pollution and energy shortage
An important means, photo-electrocatalytic technology is widely used, photoelectrocatalysis can preferably promote light induced electron,
The separation in hole, photoelectrocatalysis fixed nitrogen ammonification, Gu carbon dioxide becomes organic matter, light electro synthesis chemicals and
Material and utilize photoelectrocatalysis changing waste into valuable, protection environment etc., is all the most fast-developing industry,
1972, the mankind were first in n-type semiconductor TiO2It is found that on electrode that the photoelectrocatalysis of water decomposes to make
With.Taking this as an opportunity, opens the frontier of heterogeneous catalysis research.With 20 century 70 world wides
Energy crisis be background, early-stage Study be mostly limited to solar energy conversion and store (photolysis water hydrogen).
Studying for a long period of time and show, thorough for Some Organic Pollutants mineralising can be removed by photocatalysis method, for various organic dirts
The removal of the poisonous and harmful substance of dye thing and the inorganic pollution of reproducibility, particularly bio-refractory, it is provided that
A kind of environmental pollution advanced purification technology of great future.Recent years, along with the development of nanometer technology,
Utilize the Superhydrophilic after nano titanium dioxide photocatalyst film forming and photocatalytic activity to develop to have from clear
The nano-photo catalytic film functional material of clean and photocatalysis performance, to the basic research of nano photo catalyzed oxidation with open
Send out application be filled with new vitality, be nano-photo catalytic become the most most active research field it
One.
The most compound at nano-photo catalytic field photo-generated carrier is restriction photocatalysis technology industrial applications
Main cause, it has been investigated that the electric assisted photo-catalysis in the presence of electric field is to improve electron hole participation light to urge
Change the effective means of reaction.Hence with electricity this principle of assisted photo-catalysis, design effective photoelectrocatalysis anti-
Answering device, become the value giving full play to photochemical catalyst, the actual application for photocatalysis technology provides one to close
Suitable device becomes technical barrier urgently to be resolved hurrily.
Summary of the invention
The purpose of the present invention utilizes as discussed above electricity assisted photo-catalysis principle design one photoelectric synchronous catalysis exactly
Oxidation NO reaction unit, it is possible to photochemical catalyst catalysis activity and extension fixture service life are greatly improved.
Technical scheme
For realizing above-mentioned technical purpose one photoelectric synchronous catalytic oxidation NO reaction system, it is characterised in that:
It includes reactor gas pretreating system, photoelectric synchronous catalytic oxidation NO system and NO-NO2-NOxAnalysis system,
Inlet end and the outlet side of photoelectric synchronous catalytic oxidation NO system are connected respectively reactor gas pretreating system
And NO-NO2-NOxAnalysis system；
Described reactor gas pretreating system includes zero level air generator and NO gas cylinder, zero level air generator
Being all connected to gas mixer with NO gas cylinder output, gas mixer output is connected to humidifier, humidification
The output of device is connected to photoelectric synchronous catalytic oxidation NO system；
Described photoelectric synchronous catalytic oxidation NO system includes light source cell, catalysis NO reactor unit and electrification
Learning auxiliary unit, light source cell provides luminous energy to catalysis NO reactor unit, and electrochemistry auxiliary unit is by the
One wire and the second wire are connected with catalysis NO reactor unit；
Described NO-NO2-NOxAnalysis system includes NO-NO2-NOxAnalyzer, NO-NO2-NOxAnalyzer is connected to
The output of photoelectric synchronous catalytic oxidation NO system.
Further, described catalysis NO reactor unit includes casing, the casing top being embedded with quartz glass plate
Lid seals, and casing urges sheet, light to urge the two ends of sheet to be connected to the first wire and the second wire built with light, and first
Wire and the second wire pass casing and are connected with electrochemistry auxiliary unit, and described light urges sheet to be placed on glass tray
On, glass tray is contained on heat-exchange tube, and heat-exchange tube two ends connect has water-supply-pipe, water-supply-pipe to be connected to perseverance
Warm water tank, the output of humidifier is connected on the sidewall of casing, NO-NO2-NOxAnalyzer input is connected to
The sidewall of casing.
Further, described electrochemistry auxiliary unit includes electrochemical workstation and electrolytic cell, electrolytic cell to electricity
Pole and reference electrode are connected to electrochemical workstation, and the working electrode of electrolytic cell is connected to the second wire, and first
Wire is connected to the anode tap of electrochemical workstation.
Further, described light source cell includes that lamp holder, UV lamp utilize lamp holder to be installed in lamp holder, UV lamp
The light sent injects in casing through quartz glass plate.
Further, described NO-NO2-NOxAnalyzer outlet side connects exhaust gas treating device, and exhaust gas treating device exports
Equipped with exhaust relief valve.
Further, described first wire and the second wire pass at casing equipped with cable seal；
The output of described humidifier and NO-NO2-NOxAnalyzer input is connected at wall box equipped with pipe
Road seal.
Further, equipped with sealing ring between described top cover and casing.
Further, the gas input of described casing is positioned at light and urges above sheet, and gas output end is positioned at light and urges sheet
Lower section.
Further, described is platinized platinum to electrode and working electrode, and reference electrode is calomel electrode, and electrolyte is
0.5mol/L Na2SO4Solution.
Further, described zero level air generator and NO gas cylinder output are equipped with flow valve.
Beneficial effect
The present invention forces electronics displacement by the additional constant potential of electrochemical workstation, it is to avoid electronics and sky
Cave is combined, and extends the life-span in hole, thus extends the service life of catalyst, improves the degradation efficiency of NO；
From preparation method, improve the catalysis activity of photochemical catalyst simultaneously.
Accompanying drawing explanation
Accompanying drawing 1 is the structural representation of the present invention.
Detailed description of the invention
Below in conjunction with the accompanying drawings and embodiment, the present invention is elaborated
Embodiment
As shown in Figure 1, a kind of photoelectric synchronous catalytic oxidation NO reaction system, it is characterised in that: it includes
Reactor gas pretreating system 1, photoelectric synchronous catalytic oxidation NO system 2 and NO-NO2-NOxAnalysis system 3,
The inlet end of photoelectric synchronous catalytic oxidation NO system 2 and outlet side are connected respectively the pretreatment of reactor gas
System 1 and NO-NO2-NOxAnalysis system 3；
Described reactor gas pretreating system 1 includes zero level air generator 101 and NO gas cylinder 102, and zero level is empty
Gas generator 101 and NO gas cylinder 102 output is all connected to gas mixer 103, gas mixer 103
Output is connected to humidifier 104, and the output of humidifier 104 is connected to photoelectric synchronous catalytic oxidation NO system
System 2；Zero level air generator 101 and NO gas cylinder 102 output is equipped with flow valve.Zero level air occurs
Air after device 101 process and the NO in NO gas cylinder 102 are mixed by gas mixer 103, lead to afterwards
The gaseous mixture crossing humidifier 104 washing wetting is passed through photoelectric synchronous catalytic oxidation NO system 2
Described photoelectric synchronous catalytic oxidation NO system 2 includes light source cell 201, catalysis NO reactor unit
202 and electrochemistry auxiliary unit 203, light source cell 201 provides luminous energy to catalysis NO reactor unit 202,
Electrochemistry auxiliary unit 203 is by the first wire 203a and the second wire 203b and catalysis NO reactor unit
202 connect；
Described NO-NO2-NOxAnalysis system 3 includes NO-NO2-NOxAnalyzer 301, NO-NO2-NOxAnalyzer
301 outputs being connected to photoelectric synchronous catalytic oxidation NO system 2, NO-NO2-NOxAnalyzer 301 outlet side
Connecting has exhaust gas treating device 302, exhaust gas treating device 302 to export equipped with exhaust relief valve 302a.
Described catalysis NO reactor unit 202 includes casing 202a, and casing 202a is with being embedded with quartz glass
The top cover 202c of plate 202b seals, and casing 202a urges sheet 202d built with light, and light urges the two ends of sheet 202d
It is connected to the first wire 203a and the second wire 203b, the first wire 203a and the second wire 203b and passes case
Body 202a is connected with electrochemistry auxiliary unit 203, and described light urges sheet 202d to be placed on glass tray 202e,
Glass tray 202e is contained on heat-exchange tube 202f, and heat-exchange tube 202f two ends connect water-supply-pipe 202g, defeated
Water pipe 202g is connected to Water Tank with Temp.-controlled 202h, and the output of humidifier 104 is connected to the sidewall of casing 202a
On, NO-NO2-NOxAnalyzer 301 input is connected to the sidewall of casing 202a.
Described electrochemistry auxiliary unit 203 includes electrochemical workstation 203c and electrolytic cell 203d, electrolytic cell
203d is connected to electrochemical workstation 203c, electrolytic cell to electrode 203d01 and reference electrode 203d02
The working electrode 203d03 of 203d is connected to the second wire 203b, the first wire 203a and is connected to electrochemistry work
Make the anode tap of station 203c.First wire 203a and the second wire 203b passes at casing 202a equipped with electricity
Cable seal 202a01；It is platinized platinum to electrode 203d01 and working electrode 203d03, reference electrode 203d02
For calomel electrode, electrolyte is 0.5mol/L Na2SO4Solution.
Described light source cell 201 includes that lamp holder 201a, UV lamp 201b utilizes lamp holder folder 201c to be contained in lamp holder
In frame 201a, the light that UV lamp 201b sends injects in casing 202a through quartz glass plate 202b.
The output of described humidifier 104 and NO-NO2-NOxAnalyzer 301 input is connected to casing 202a
Side-walls is equipped with conduit seals 202a02.Equipped with sealing ring between described top cover 202c and casing 202a
202c01。
The gas input of described casing 202a is positioned at light and urges above sheet 202d, and gas output end is positioned at light and urges sheet
Below 202d.
Native system be possible not only to utilize electrochemistry servicing unit to be effectively improved light-catalyzed reaction efficiency (,
The three-electrode system electrolytic cell of additional light source can also be utilized, by its expansive approach to hydrolytic hydrogen production, CO2Reduction,
The many-sides such as reducing heavy metal ion, thus it is built into a system bifunctional novel reaction device, i.e. one side
Face photoelectrocatalysioxidization oxidization vapor phase contaminants, on the other hand photoelectrocatalysis reduction liguid phase pollutant and energy regeneration,
Thus it is built into a system bifunctional novel photoelectric catalyst reaction device.
The present invention forces electronics displacement by the additional constant potential of electrochemical workstation, it is to avoid electronics and hole
Compound, extend the life-span in hole, thus extend the service life of catalyst, improve the degradation efficiency of NO；With
Time improve from preparation method photochemical catalyst catalysis activity.
Claims (10)
1. a photoelectric synchronous catalytic oxidation NO reaction system, it is characterised in that: it includes that reactor gas is pre-
Processing system (1), photoelectric synchronous catalytic oxidation NO system (2) and NO-NO2-NOxAnalysis system (3), photoelectricity
The inlet end and the outlet side that synchronize catalytic oxidation NO system (2) are connected respectively reactor gas pretreating system
And NO-NO (1)2-NOxAnalysis system (3)；
Described reactor gas pretreating system (1) includes zero level air generator (101) and NO gas cylinder (102),
Zero level air generator (101) and NO gas cylinder (102) output are all connected to gas mixer (103), gas
Blender (103) output is connected to humidifier (104), and it is same that the output of humidifier (104) is connected to photoelectricity
Step catalytic oxidation NO system (2)；
Described photoelectric synchronous catalytic oxidation NO system (2) includes light source cell (201), catalysis NO reactor list
Unit (202) and electrochemistry auxiliary unit (203), light source cell (201) gives catalysis NO reactor unit (202)
Thering is provided luminous energy, electrochemistry auxiliary unit (203) is passed through the first wire (203a) and the second wire (203b) and is urged
Change NO reactor unit (202) to connect；
Described NO-NO2-NOxAnalysis system (3) includes NO-NO2-NOxAnalyzer (301), NO-NO2-NOxPoint
Analyzer (301) is connected to the output of photoelectric synchronous catalytic oxidation NO system (2).
2. a kind of photoelectric synchronous catalytic oxidation NO reaction system as claimed in claim 1, it is characterised in that:
Described catalysis NO reactor unit (202) includes casing (202a), and casing (202a) is with being embedded with quartz glass
The top cover (202c) of plate (202b) seals, and casing (202a) urges sheet (202d) built with light, and light urges sheet (202d)
Two ends be connected to the first wire (203a) and the second wire (203b), the first wire (203a) and the second wire
(203b) passing casing (202a) to be connected with electrochemistry auxiliary unit (203), described light urges sheet (202d) to place
On glass tray (202e), glass tray (202e) is contained on heat-exchange tube (202f), heat-exchange tube (202f)
Two ends connect has water-supply-pipe (202g), water-supply-pipe (202g) to be connected to Water Tank with Temp.-controlled (202h), humidifier (104)
Output be connected on the sidewall of casing (202a), NO-NO2-NOxAnalyzer (301) input is connected to case
Body (202a) sidewall.
3. a kind of photoelectric synchronous catalytic oxidation NO reaction system as claimed in claim 1, it is characterised in that:
Described electrochemistry auxiliary unit (203) includes electrochemical workstation (203c) and electrolytic cell (203d), electrolytic cell
(203d) electrode (203d01) and reference electrode (203d02) are connected to electrochemical workstation (203c),
The working electrode (203d03) of electrolytic cell (203d) is connected to the second wire (203b), and the first wire (203a) is even
Receive the anode tap of electrochemical workstation (203c).
4. a kind of photoelectric synchronous catalytic oxidation NO reaction system as claimed in claim 1, it is characterised in that:
Described light source cell (201) includes that lamp holder (201a), UV lamp (201b) utilize lamp holder folder (201c) to be contained in lamp
In the headstock (201a), the light that UV lamp (201b) sends injects casing (202a) through quartz glass plate (202b)
In.
5. a kind of photoelectric synchronous catalytic oxidation NO reaction system as claimed in claim 1, it is characterised in that:
Described NO-NO2-NOxAnalyzer (301) outlet side connects exhaust gas treating device (302), exhaust gas treating device (302)
Outlet is equipped with exhaust relief valve (302a).
6. a kind of photoelectric synchronous catalytic oxidation NO reaction system as claimed in claim 1 or 2, its feature
It is: described first wire (203a) and the second wire (203b) pass casing (202a) place equipped with cable seal
Part (202a01)；
The output of described humidifier (104) and NO-NO2-NOxAnalyzer (301) input is connected to casing
(202a) side-walls is equipped with conduit seals (202a02).
7. a kind of photoelectric synchronous catalytic oxidation NO reaction system as claimed in claim 2, it is characterised in that:
Equipped with sealing ring (202c01) between described top cover (202c) and casing (202a).
8. a kind of photoelectric synchronous catalytic oxidation NO reaction system as claimed in claim 2, it is characterised in that:
The gas input of described casing (202a) is positioned at light and urges sheet (202d) top, and gas output end is positioned at light and urges sheet
(202d) lower section.
9. a kind of photoelectric synchronous catalytic oxidation NO reaction system as claimed in claim 3, it is characterised in that:
Described is platinized platinum to electrode (203d01) and working electrode (203d03), and reference electrode (203d02) is calomel electricity
Pole, electrolyte is 0.5mol/L Na2SO4Solution.
10. a kind of photoelectric synchronous catalytic oxidation NO reaction system as claimed in claim 1, it is characterised in that:
Described zero level air generator (101) and NO gas cylinder (102) output are equipped with flow valve.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410719787.7A CN104492233B (en) | 2014-12-01 | 2014-12-01 | A kind of photoelectric synchronous catalytic oxidation NO reaction unit |
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| CN201410719787.7A CN104492233B (en) | 2014-12-01 | 2014-12-01 | A kind of photoelectric synchronous catalytic oxidation NO reaction unit |
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| CN104492233A CN104492233A (en) | 2015-04-08 |
| CN104492233B true CN104492233B (en) | 2016-09-07 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106053710A (en) * | 2016-07-21 | 2016-10-26 | 西南石油大学 | Gaseous pollutant photocatalytic online detection apparatus and method |
| CN107138111B (en) * | 2017-05-23 | 2019-02-22 | 郑州轻工业学院 | A kind of carbon dioxide catalytic reduction reaction device |
| CN114452815A (en) * | 2022-02-24 | 2022-05-10 | 燕山大学 | Reaction system for removing VOCs in air through photoelectrocatalysis |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2732344Y (en) * | 2004-09-30 | 2005-10-12 | 广东工业大学 | Photoelectric catalyzing reactor for degrading organic pollutants |
| CN1800715A (en) * | 2004-12-31 | 2006-07-12 | 李志恒 | Comprehensive recovery and utilization method for exhaust gas |
| CN103101991A (en) * | 2013-02-07 | 2013-05-15 | 广州市大禹环保科技有限公司 | Immersed type photoelectrocatalysis reaction apparatus |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2732344Y (en) * | 2004-09-30 | 2005-10-12 | 广东工业大学 | Photoelectric catalyzing reactor for degrading organic pollutants |
| CN1800715A (en) * | 2004-12-31 | 2006-07-12 | 李志恒 | Comprehensive recovery and utilization method for exhaust gas |
| CN103101991A (en) * | 2013-02-07 | 2013-05-15 | 广州市大禹环保科技有限公司 | Immersed type photoelectrocatalysis reaction apparatus |
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