CN109268851A - A kind of method and apparatus of the electrodeless ultraviolet joint catalysis burning processing VOCs gas of microwave-driven - Google Patents
A kind of method and apparatus of the electrodeless ultraviolet joint catalysis burning processing VOCs gas of microwave-driven Download PDFInfo
- Publication number
- CN109268851A CN109268851A CN201810841226.2A CN201810841226A CN109268851A CN 109268851 A CN109268851 A CN 109268851A CN 201810841226 A CN201810841226 A CN 201810841226A CN 109268851 A CN109268851 A CN 109268851A
- Authority
- CN
- China
- Prior art keywords
- microwave
- bed
- ultraviolet
- catalysis burning
- module
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000006555 catalytic reaction Methods 0.000 title claims abstract description 65
- 239000012855 volatile organic compound Substances 0.000 title claims abstract description 39
- 238000000034 method Methods 0.000 title claims abstract description 25
- 238000012545 processing Methods 0.000 title claims abstract description 20
- 238000006303 photolysis reaction Methods 0.000 claims abstract description 50
- 230000015843 photosynthesis, light reaction Effects 0.000 claims abstract description 49
- 238000006243 chemical reaction Methods 0.000 claims abstract description 42
- 238000002485 combustion reaction Methods 0.000 claims abstract description 20
- 230000000694 effects Effects 0.000 claims abstract description 9
- 230000015556 catabolic process Effects 0.000 claims abstract description 8
- 239000007789 gas Substances 0.000 claims description 71
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 27
- 238000010438 heat treatment Methods 0.000 claims description 18
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 12
- 239000003054 catalyst Substances 0.000 claims description 11
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 10
- 239000002912 waste gas Substances 0.000 claims description 8
- 230000008859 change Effects 0.000 claims description 7
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 6
- 239000001569 carbon dioxide Substances 0.000 claims description 6
- VUZPPFZMUPKLLV-UHFFFAOYSA-N methane;hydrate Chemical compound C.O VUZPPFZMUPKLLV-UHFFFAOYSA-N 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 5
- 241001466460 Alveolata Species 0.000 claims description 4
- 230000009471 action Effects 0.000 claims description 4
- 125000004122 cyclic group Chemical group 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 4
- 239000002957 persistent organic pollutant Substances 0.000 claims description 4
- HMDDXIMCDZRSNE-UHFFFAOYSA-N [C].[Si] Chemical compound [C].[Si] HMDDXIMCDZRSNE-UHFFFAOYSA-N 0.000 claims description 3
- 150000002148 esters Chemical class 0.000 claims description 3
- 239000006260 foam Substances 0.000 claims description 3
- 239000012535 impurity Substances 0.000 claims description 3
- 239000013618 particulate matter Substances 0.000 claims description 3
- 238000012360 testing method Methods 0.000 claims description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 2
- 229910016978 MnOx Inorganic materials 0.000 claims description 2
- 239000011149 active material Substances 0.000 claims description 2
- 229910052802 copper Inorganic materials 0.000 claims description 2
- 239000010949 copper Substances 0.000 claims description 2
- 229930195733 hydrocarbon Natural products 0.000 claims description 2
- 150000002430 hydrocarbons Chemical class 0.000 claims description 2
- 230000008676 import Effects 0.000 claims description 2
- 229910001220 stainless steel Inorganic materials 0.000 claims description 2
- 239000011797 cavity material Substances 0.000 claims 12
- 238000010525 oxidative degradation reaction Methods 0.000 claims 1
- 238000005516 engineering process Methods 0.000 abstract description 8
- 230000008569 process Effects 0.000 abstract description 8
- 238000006731 degradation reaction Methods 0.000 abstract description 5
- 238000007084 catalytic combustion reaction Methods 0.000 abstract description 4
- 238000005265 energy consumption Methods 0.000 abstract description 2
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 18
- 239000010815 organic waste Substances 0.000 description 5
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 4
- 230000003197 catalytic effect Effects 0.000 description 4
- 239000000356 contaminant Substances 0.000 description 4
- 230000003647 oxidation Effects 0.000 description 4
- 238000007254 oxidation reaction Methods 0.000 description 4
- 238000003672 processing method Methods 0.000 description 4
- 238000000746 purification Methods 0.000 description 4
- 230000008054 signal transmission Effects 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 239000003344 environmental pollutant Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000005416 organic matter Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 231100000719 pollutant Toxicity 0.000 description 3
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000007598 dipping method Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 229910052748 manganese Inorganic materials 0.000 description 2
- 239000011572 manganese Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- 238000006385 ozonation reaction Methods 0.000 description 2
- 238000000197 pyrolysis Methods 0.000 description 2
- 150000003254 radicals Chemical class 0.000 description 2
- 241000790917 Dioxys <bee> Species 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000711 cancerogenic effect Effects 0.000 description 1
- 231100000315 carcinogenic Toxicity 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 238000003421 catalytic decomposition reaction Methods 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000000338 in vitro Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 239000013067 intermediate product Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000002803 maceration Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- NICDRCVJGXLKSF-UHFFFAOYSA-N nitric acid;trihydrochloride Chemical compound Cl.Cl.Cl.O[N+]([O-])=O NICDRCVJGXLKSF-UHFFFAOYSA-N 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 230000001699 photocatalysis Effects 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 239000012286 potassium permanganate Substances 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 239000010970 precious metal Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000032258 transport Effects 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
- F23G7/06—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases
- F23G7/07—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases in which combustion takes place in the presence of catalytic material
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/44—Details; Accessories
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/50—Control or safety arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/02—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material
- F23J15/04—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material using washing fluids
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/06—Arrangements of devices for treating smoke or fumes of coolers
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
- Treating Waste Gases (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
Abstract
The invention discloses a kind of methods and apparatus of the electrodeless ultraviolet joint catalysis burning processing VOCs gas of microwave-driven.The ultraviolet photolysis module that equipment of the invention includes reaction cavity, is made of microwave generator, non-polar ultraviolet light source, microwave protection net etc., and the catalysis combustion module being made of multiple microwave generators, preheating bed, catalysis burning bed etc..The present invention combines catalytic combustion technology using ultraviolet photolysis, with microwave-driven non-polar ultraviolet light source, and the heat source as catalysis burning, treatment process energy utilization efficiency height and shadow-free effect, overcome degradation in the prior art not exclusively, the disadvantages of energy consumption is high and accident rate is high, have many advantages, such as degradation rate height, long service life and without secondary pollution.
Description
Technical field
The present invention relates to TREATMENT OF VOCs technical fields, specifically, are related to a kind of microwave-driven without extreme ultraviolet
The equipment of joint catalysis burning processing VOCs gas, and a kind of method of processing VOCs exhaust gas based on the equipment.
Background technique
Volatile organic matter (VOCs) is typical pollutant in atmospheric environment, which has one to human body because of it
It is fixed cause a disease, cause it is harmful, carcinogenic etc. endanger, and easily derived from atmospheric environment at the secondary atmosphere pollution such as photochemical fog, closely
The emphasis of whole society's concern is had become over year.Volatile organic matter can by sources be divided into nature source and artificial source, artificially
Source includes the various vehicles and factory, wherein chemical industry manufacturing industry, thermal power generation industry, pharmaceutical industry, petrochemical industry storage and transportation, printing
The key industry that industry, spraying industry, furniture and textile manufacturing industry etc. are discharged for VOCs.Industrial organic exhaust gas is the main row of VOCs
Put source.
The reactivity of VOCs is strong, under the conditions of natural light irradiation and a series of complex, can and air present in NOx with
And some other chemical substances chemically react, and generate photochemical fog, cause damages to environment.VOCs can cause multiple
Mould assembly atmosphere pollution is O3With the crucial predecessor of PM2.5, it is huge that contribution is generated to summer ozone pollution and autumn and winter haze.
To the year two thousand twenty, Chinese VOCs discharge amount is estimated will to increase by 49% than 2005.Government department pays much attention to the improvement of VOCs.
The domestic VOCs for different industries, various concentration and type has developed a plurality of types of processing methods at present, often
VOCs control technology have high-temperature oxidation, Production by Catalytic Combustion Process, photocatalytic method, active carbon adsorption, absorption process and condensation method,
Membrane separation process etc..
Chinese invention patent " waste gas processing method and device of vacuum-ultraviolet light catalyzing cooperation catalytic ozonation " (Huanghai Sea
Protect, application number: CN201510279052.1) it is purified using the synergistic effect of ultraviolet catalytic oxidation and catalytic ozonation
VOCs exhaust gas.On the one hand this method passes through ultraviolet light to organic pollutant Direct Pyrolysis, on the other hand generated with ultraviolet lamp strong
Oxidative free radical and ozone substance are further processed organic exhaust gas under the action of meeting catalyst, it can be achieved that organic exhaust gas
Efficient process, but there is certain limitation for high-concentration organic waste gas and complicated ingredient organic exhaust gas.
Chinese invention patent " a kind of catalysis burn processing method of high-concentration organic waste gas " (Liu Zhongsheng, application number:
CN201110217392.3 a kind of catalysis burn processing method for high-concentration organic waste gas) is disclosed, is mixed using air
High-concentration organic waste gas, then will wherein organic principle be degraded by the method for catalysis burning.The method focuses on practical application, has
Preferable clean-up effect, but for low concentration organic exhaust gas carry out catalysis burning handle caused by energy consumption problem not compared with
Good solution.
Summary of the invention
The present invention in view of the deficiency of the prior art, provides a kind of electrodeless ultraviolet joint catalysis combustion of microwave-driven
Burn the method and apparatus of processing VOCs gas.It is shone with microwave-driven non-polar ultraviolet light source, recycles the distinctive interior heat engine of microwave
System, preheating bed and catalysis burning bed as the burning of heat source heatable catalytic.Combine catalytic combustion technology by ultraviolet photolysis,
Effective degradation organic waste gas.
To reach above-mentioned technical purpose, the present invention is achieved by the following scheme:
The present invention provides a kind of equipment of electrodeless ultraviolet joint catalysis burning processing VOCs gas of microwave-driven comprising level is set
Reaction cavity, ultraviolet photolysis module, catalysis combustion module and the recirculated water heat exchange module set；The front end of reaction cavity and tail end point
Not She Zhi air inlet and air outlet, deflector is set at air inlet, demister is set at gas outlet, VOCs gas is via air inlet
Ultraviolet photolysis module, catalysis combustion module and recirculated water heat exchange module are sequentially entered by deflector into reaction cavity, finally
It is discharged by demister by exhaust outlet；Wherein:
The ultraviolet photolysis module is arranged in reaction cavity, by several microwave generators, frequency conversion high-voltage drive, ultraviolet
Photodissociation chamber, non-polar ultraviolet light source and microwave protection net composition；The ultraviolet photolysis chamber is horizontally disposed, and both ends are fixedly mounted respectively
Microwave protection net；The microwave generator is connected with frequency conversion high-voltage drive, is fixed on the outer wall of ultraviolet photolysis chamber, and microwave occurs
The Microwave emission stick of device is intracavitary by the cavity wall aperture insertion ultraviolet photolysis on ultraviolet photolysis chamber；The non-polar ultraviolet light source is horizontal
It is mounted and fixed to the inner wall of ultraviolet photolysis chamber；
The catalysis combustion module is arranged in reaction cavity, by several microwave generators, frequency conversion high-voltage drive, preheating
Bed, catalysis burning bed, microwave heating chamber and infrared temperature sensor composition；Microwave heating is intracavitary successively to be set from front to back
Set preheating bed and catalysis burning bed；Microwave generator, frequency conversion high-voltage drive and red are set on the outer wall of microwave heating chamber
Outside line temperature sensor, microwave generator are connected with frequency conversion high-voltage drive, and the Microwave emission stick of microwave generator passes through microwave
Cavity wall aperture insertion microwave heating in heating chamber is intracavitary, and infrared temperature sensor is for test preheating bed and catalysis respectively
The temperature burnt in bed；It preheating and loads foam silicon carbon in bed, catalysis is burnt, and bed is built-in to fill out Alveolate activated carbon carrier,
Supported on carriers active material Pt/MnOx；
The recirculated water heat exchange module is made of heat exchanger tube, water circulating pump and external cyclic water tank, and the heat exchanger tube is placed vertically
In the intracorporal catalysis combustion module outlet end of reaction chamber, the external water circulating pump of reaction cavity, water circulating pump and reaction chamber are connected
The cyclic water tank set in vitro is connected.
In the present invention, deflector is W type deflector.
In the present invention, microwave protection net is made of metal reticular structure, and aperture is in 1.3 ~ 2.3mm.
In the present invention, non-polar ultraviolet light source (for high-pressure blower, generation ultraviolet wavelength is 185nm, length is 50 ~
70cm, rated power are 55 ~ 70w.
In the present invention, the material of ultraviolet photolysis chamber, microwave heating chamber and reaction cavity is 304 stainless steels, thickness >=
6mm；The heat exchanger tube is metal copper.
In the present invention, the frequency conversion high-voltage drive input voltage is 200 ~ 240V, and output voltage is 0 ~ 4200V, microwave
The output power of generator is 0 ~ 1260W；The microwave generator microwave frequency is 915MHz；The infrared temperature sensor
Frequency conversion high-voltage drive is connected by control equipment and by changing output voltage control microwave generator output power.
The present invention also provides a kind of methods using above-mentioned equipment processing VOCs gas, comprising the following steps:
Step 1: exhaust gas passes through deflector after pretreatment removal particulate matter and ester impurities enter equipment by air inlet
Carry out tentatively mixed wind；
Step 2: entering ultraviolet photolysis module by microwave protection net by the exhaust gas of preliminary mixed wind, non-polar ultraviolet light source is micro-
Under wave producer driving, initial breakdown is carried out to the organic pollutant in exhaust gas；
Step 3: by the exhaust gas after ultraviolet photolysis module preliminary treatment, into the preheating bed heated by microwave generator
Preheating enters back into the catalysis burning bed by microwave generator heating, adds in the effect of catalyst and low-temperature burning and oxidation occurs
Degradation, is converted into carbon dioxide and water；
Step 4: high-temp waste gas after catalysis burning is processed cools down under the action of heat exchanger tube again, and by passing through after demister
Reaction cavity is discharged in exhaust outlet.
In the present invention, in step 1, the non-methane total hydrocarbons concentration of the air inlet of exhaust gas is within the scope of 5 ~ 2000ppm, import
Wind speed is in 300 ~ 1200m3The tentatively mixed wind of the air of/h, exhaust gas and air compressor machine conveying；In step 2, pass through ultraviolet photolysis module
Residence time is 2 ~ 9s, and in step 3, the residence time by preheating bed and catalysis burning bed is 0.3 ~ 2s.
In the present invention, in step 3, preheating bed is connected with the temperature of catalysis burning bed by infrared temperature sensor
Control equipment simultaneously adjusts microwave generator output power to control, wherein the temperature of preheating bed, catalysis burning bed is identical, control
System is between 220 DEG C ~ 300 DEG C.
Compared with prior art, the beneficial effects of the present invention are:
(1) by the way that ultraviolet photolysis technology and catalytic combustion technology to be combined, office of the high-concentration waste gas in ultraviolet photolysis is overcome
It is sex-limited, keep requirement of the invention for inlet exhaust relatively low；
(2) microwave-driven non-polar ultraviolet light source is utilized, ultraviolet photolysis module is can avoid and is possible to generation under high humidity environment
Damage promotes the service life of ultraviolet photolysis module entirety；
(3) during VOCs treatment, catalyst selected by the present invention can not only be catalyzed burning VOCs gas, while right
The excessive ozone generated in photolysis step has good catalytic decomposition effect, to reduce secondary pollution in reaction process
Discharge；
(4) the interior heat engine system exclusive due to microwave heating, effectively evaded to material heating when shadow effect, solve by
The non-uniform problem of hot spot in catalyst caused by storeroom heat-transfer effect difference.
Detailed description of the invention
Fig. 1 is the equipment structure chart of the electrodeless ultraviolet joint catalysis burning processing VOCs gas of microwave-driven of the present invention.
Figure label: 1- microwave generator, 2- frequency conversion high-voltage drive, 3- ultraviolet photolysis chamber, 4- non-polar ultraviolet light source, 5-
Microwave protection net, 6- preheat bed, 7- catalysis burning bed, 8- microwave heating chamber, 9- infrared temperature sensor, 10- heat exchange
Pipe, 11- water circulating pump, 12- cyclic water tank, 13- air inlet, 14- deflector, 15- exhaust outlet, 16- demister.
Specific embodiment
Below with reference to embodiment and attached drawing, the invention will be further described.
Fig. 1 is please referred to, Fig. 1 is the equipment knot of the electrodeless ultraviolet joint catalysis burning processing VOCs gas of microwave-driven of the present invention
Composition.
In ultraviolet photolysis module, microwave generator 1 is driven by frequency conversion high-voltage drive 2, and input voltage is switched to height and is forced down
Stream exports and microwave generator 1 is made to generate microwave field, and the non-polar ultraviolet light source in ultraviolet photolysis chamber 3 is issued in microwave irradiation effect
Light, generates the ultraviolet light of 185nm wavelength, and VOCs Direct Pyrolysis under ultraviolet light conditions in part is partially converted into intermediate product, companion
Ultraviolet photolysis module is discharged in the substances such as the strong oxidizing property free radical and ozone that generate with ultraviolet light together；In the work of preheating bed 6
Under, the gas containing VOCs enters back into catalysis burning by being warming up to catalysis ignition temperature by the foam silicon carbon of microwave heating
Bed 7 carries out catalysis burning.Catalysis burning bed 7 is heated and is kept the temperature in microwave heating chamber 8 by microwave generator 1.Catalyst
Manganese-based catalyst is selected, it is modified with precious metal additive Pt, and it is supported on Alveolate activated carbon that (preparation method of catalyst is such as
Under: potassium permanganate and chloroplatinic acid are after 7:3 is mixed, in H according to the molar ratio of Mn and Pt+Concentration is dilute chloroazotic acid of 1mol/l
Middle stirring 10min, obtains maceration extract, adds Alveolate activated carbon dipping 3h, after dipping, successively at a temperature of 120 DEG C
5h is dried, calcines 5h in Muffle furnace at a temperature of 500 DEG C, reshaping obtains catalyst)；Cellular catalyst carrier can protect
Demonstrate,prove bed high throughput and good thermal stability.Organic gas is further handled by being catalyzed burning, is degraded to dioxy
Change carbon and water, so that gas is cooled down by the heat-exchanger rig of rear end, and water mist and device for transferring are removed by demister 16.
A kind of method handling VOCs gas provided by the invention, main process flow are as follows:
1, exhaust gas passes through deflector after pretreatment removal particulate matter and ester impurities enter reaction cavity by air inlet 13
14 carry out tentatively mixed wind；
2, ultraviolet photolysis module is entered by microwave protection net 5 by the exhaust gas of tentatively mixed wind, non-polar ultraviolet light source 4 is sent out in microwave
Under raw device 1 drives, initial breakdown is carried out to the organic pollutant in exhaust gas；
3, pre- into the preheating bed 6 heated by microwave generator 1 by the exhaust gas after ultraviolet photolysis module preliminary treatment
Heat enters back into the catalysis burning bed 7 heated by microwave generator 1, adds in the effect of catalyst and low-temperature burning and oxidation occurs
Degradation, is converted into carbon dioxide and water；
4, the high-temp waste gas after catalysis burning is processed cools down under the action of heat exchanger tube 10, and by after demister 16 through arranging
Reaction cavity is discharged in port 15.
Using the device and method of microwave-driven described above electrodeless ultraviolet joint catalysis burning processing VOCs gas, to
Lower several types exhaust gas is handled.
During test of the invention, using air distribution system by liquid state organics by way of air blast volatilization and air compressor machine
The air of conveying carries out mixed wind, matches to obtain certain density simulation VOCs exhaust gas in this way, in institute's scope of application of the present invention,
VOCs concentration is less than 2000ppm, and oxygen is excessive in air, it is ensured that organic matter full combustion.
Embodiment 1
Exhaust gas parameters: 800 ~ 1000m of flow3/ h, groups of contaminants are divided into toluene, 30 ~ 60ppm of concentration；
Device parameter: ultraviolet photolysis module electrodeless ultraviolet lamp containing 185nm 11, every rated power is 65w, microwave generator 1
300 ~ 420w of output power, gas residence time are 2 ~ 5s；It is catalyzed in combustion module and preheats 220 ~ 300 DEG C of 6 temperature of bed, catalysis
220 ~ 300 DEG C of 7 temperature of bed of burning, gas residence time are 0.4 ~ 1.2s；
When emission-control equipment is run, the microwave generator 1 in ultraviolet photolysis module is to set power stability operation, catalysis burning
1 output power of microwave generator passes through infrared temperature sensor 9 by electric signal transmission to control device, finally by becoming in module
Frequency high-voltage drive 2 is adjusted, and control catalysis burning 7 temperature of bed is stablized.Toluene waste gas successively passes through ultraviolet photolysis module and urges
Change combustion module, is degraded to carbon dioxide and water by United Technologies, it is final to discharge.Operational process is stablized, and purification efficiency is higher than
98%,, P0: air inlet target pollutant concentration；P1: exhaust outlet target pollutant concentration discharges gas
O in body3It does not detect.
Embodiment 2
Exhaust gas parameters: 400 ~ 600m of flow3/ h, groups of contaminants are divided into toluene, 480 ~ 520ppm of concentration；
Device parameter: ultraviolet photolysis module electrodeless ultraviolet lamp containing 185nm 11, every rated power is 65w, microwave generator 1
300 ~ 420w of output power, gas residence time are 4 ~ 8.5s；It is catalyzed in combustion module and preheats 220 ~ 300 DEG C of 6 temperature of bed, urge
Change 220 ~ 300 DEG C of 7 temperature of bed of burning, gas residence time is 0.8 ~ 2s；
When emission-control equipment is run, the microwave generator 1 in ultraviolet photolysis module is to set power stability operation, catalysis burning
1 output power of microwave generator passes through infrared temperature sensor 9 by electric signal transmission to control device, finally by becoming in module
Frequency high-voltage drive 2 is adjusted, and control catalysis burning 7 temperature of bed is stablized.Toluene waste gas successively passes through ultraviolet photolysis module and urges
Change combustion module, is degraded to carbon dioxide and water by United Technologies, it is final to discharge.Operational process is stablized, and purification efficiency is higher than
92%, O in discharge gas3It does not detect.
Comparative example 1
Exhaust gas parameters: 400 ~ 600m of flow3/ h, groups of contaminants are divided into toluene, 480 ~ 520ppm of concentration；
Device parameter: preheating 220 ~ 300 DEG C of 6 temperature of bed in catalysis combustion module, is catalyzed 220 ~ 300 DEG C of 7 temperature of bed of burning,
Gas residence time is 0.8 ~ 2s；
When emission-control equipment is run, the microwave generator 1 in ultraviolet photolysis module closes operation, is catalyzed microwave in combustion module
1 output power of generator passes through infrared temperature sensor 9 by electric signal transmission to control device, finally by frequency conversion high drive
Device 2 is adjusted, and control catalysis burning 7 temperature of bed is stablized.Toluene waste gas only passes through catalysis combustion module processing.Stablize to device and transports
After row 3h, measuring purification efficiency is about 81%.
Embodiment 3
Exhaust gas parameters: 800 ~ 1000m of flow3/ h, groups of contaminants are divided into isopropanol, 120 ~ 1500ppm of concentration；
Device parameter: ultraviolet photolysis module electrodeless ultraviolet lamp containing 185nm 11, every rated power is 65w, microwave generator 1
300 ~ 420w of output power, gas residence time are 2 ~ 5s；It is catalyzed in combustion module and preheats 220 ~ 300 DEG C of 6 temperature of bed, catalysis
220 ~ 300 DEG C of 7 temperature of bed of burning, gas residence time are 0.4 ~ 1.2s；
When emission-control equipment is run, the microwave generator 1 in ultraviolet photolysis module is to set power stability operation, catalysis burning
1 output power of microwave generator passes through infrared temperature sensor 9 by electric signal transmission to control device, finally by becoming in module
Frequency high-voltage drive 2 is adjusted, and control catalysis burning 7 temperature of bed is stablized.Organic exhaust gas successively passes through ultraviolet photolysis module and urges
Change combustion module, is degraded to carbon dioxide and water by United Technologies, it is final to discharge.Operational process is stablized, and purification efficiency is higher than
98%, O in discharge gas3It does not detect.
The foregoing is merely preferred embodiments of the invention, are not intended to limit the invention, all in right of the invention
In claimed range, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (8)
1. a kind of equipment of the electrodeless ultraviolet joint catalysis burning processing VOCs gas of microwave-driven, which is characterized in that it includes water
Reaction cavity, ultraviolet photolysis module, catalysis combustion module and the recirculated water heat exchange module of flat setting；The front end of reaction cavity and tail
Air inlet (13) and gas outlet (15) is respectively set in end, and deflector (14) are arranged at air inlet (13), are arranged at gas outlet (15)
Demister (16), VOCs gas enter reaction cavity via air inlet (13) and sequentially enter ultraviolet photolysis mould by deflector (14)
Block, catalysis combustion module and recirculated water heat exchange module are finally discharged by demister (16) by exhaust outlet (15)；Wherein:
The ultraviolet photolysis module is arranged in reaction cavity, by several microwave generators (1), frequency conversion high-voltage drive
(2), ultraviolet photolysis chamber (3), non-polar ultraviolet light source (4) and microwave protection net (5) composition；Ultraviolet photolysis chamber (3) level is set
It sets, microwave protection net (5) are fixedly mounted in both ends respectively；The microwave generator (1) is connected with frequency conversion high-voltage drive (2),
It is fixed on the outer wall of ultraviolet photolysis chamber (3), the Microwave emission stick of microwave generator (1) passes through the cavity wall on ultraviolet photolysis chamber (3)
Aperture is inserted into ultraviolet photolysis chamber (3)；The non-polar ultraviolet light source (4) is horizontally mounted and is fixed on the interior of ultraviolet photolysis chamber (3)
Wall；
The catalysis combustion module is arranged in reaction cavity, by several microwave generators (1), frequency conversion high-voltage drive
(2), bed (6), catalysis burning bed (7), microwave heating chamber (8) and infrared temperature sensor (9) composition are preheated；Microwave adds
Preheating bed (6) and catalysis burning bed (7) are set gradually in hot chamber (8) from front to back；It is set on the outer wall of microwave heating chamber (8)
Microwave generator (1), frequency conversion high-voltage drive (2) and infrared temperature sensor (9) are set, microwave generator (1) and frequency conversion are high
Driver (2) are pressed to be connected, the Microwave emission stick of microwave generator (1) is inserted into micro- by the cavity wall aperture on microwave heating chamber (8)
In Wave heating chamber (8), infrared temperature sensor (9) is in test preheating bed (6) and catalysis burning bed (7) respectively
Temperature；It preheats and loads foam silicon carbon in bed (6), be catalyzed in burning bed (7) and load Alveolate activated carbon carrier, on carrier
Supported active material Pt/MnOx；
The recirculated water heat exchange module is made of heat exchanger tube (10), water circulating pump (11) and external cyclic water tank (12), described to change
Heat pipe (10) is placed on the intracorporal catalysis combustion module outlet end of reaction chamber, the external water circulating pump of connection reaction cavity vertically
(11), water circulating pump (11) cyclic water tank (12) external with reaction cavity is connected.
2. the equipment of the electrodeless ultraviolet joint catalysis burning processing VOCs gas of microwave-driven according to claim 1, special
Sign is that microwave protection net (5) is made of metal reticular structure, and aperture is in 1.3 ~ 2.3mm.
3. the electrodeless ultraviolet joint catalysis burning processing VOCs gas of microwave-driven according to claim 1 is set
It is standby, which is characterized in that non-polar ultraviolet light source (4) is high-pressure blower, and generations ultraviolet wavelength is 185nm, length for 50 ~
70cm, rated power are 55 ~ 70w.
4. the equipment of the electrodeless ultraviolet joint catalysis burning processing VOCs gas of microwave-driven according to claim 1, special
Sign is that ultraviolet photolysis chamber (3), microwave heating chamber (8) and reaction cavity material are 304 stainless steels, thickness >=6mm；It is described
Heat exchanger tube (10) is metal copper.
5. the equipment of the electrodeless ultraviolet joint catalysis burning processing VOCs gas of microwave-driven according to claim 1, special
Sign is that frequency conversion high-voltage drive (2) input voltage is 200 ~ 240V, and output voltage is 0 ~ 4200V, microwave generator (1)
Output power is 0 ~ 1260W；Microwave generator (1) microwave frequency is 915MHz；Infrared temperature sensor (9) is set by control
Standby connection frequency conversion high-voltage drive (2) simultaneously passes through change output voltage control microwave generator (1) output power.
6. a kind of method using equipment processing VOCs gas described in claim 1, which comprises the following steps:
Step 1: exhaust gas leads to after pretreatment removal particulate matter and ester impurities enter reaction cavity by air inlet (13)
It crosses deflector (14) and carries out tentatively mixed wind；
Step 2: entering ultraviolet photolysis module, non-polar ultraviolet light source by microwave protection net (5) by the exhaust gas of preliminary mixed wind
(4) under microwave generator (1) driving, initial breakdown is carried out to the organic pollutant in exhaust gas；
Step 3: by the exhaust gas after ultraviolet photolysis module preliminary treatment, into the pre- hott bed heated by microwave generator (1)
Layer (6) preheating enters back by catalysis burning bed (7) of microwave generator (1) heating, adds generation low temperature in the effect of catalyst
Burning and oxidative degradation, are converted into carbon dioxide and water；
Step 4: the high-temp waste gas after catalysis burning is processed cools down under the action of heat exchanger tube (10), and pass through demister
(16) reaction cavity is discharged by exhaust outlet (15).
7. the method for processing VOCs gas according to claim 6, which is characterized in that in step 1, the air inlet of exhaust gas
(13) non-methane total hydrocarbons concentration is within the scope of 5 ~ 2000ppm, and import wind speed is in 300 ~ 1200m3/ h, exhaust gas and air compressor machine conveying
The tentatively mixed wind of air；In step 2, the residence time by ultraviolet photolysis module is 2 ~ 9s；In step 3, pass through pre- hott bed
The residence time of layer (6) and catalysis burning bed (7) is 0.3 ~ 2s.
8. it is according to claim 6 processing VOCs gas method, which is characterized in that in step 3, preheat bed (6) and
The temperature of catalysis burning bed (7) connects control equipment by infrared temperature sensor (9) and adjusts microwave generator (1) output
Power controls, wherein the temperature of preheating bed (6), catalysis burning bed (7) is identical, controls between 220 DEG C ~ 300 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810841226.2A CN109268851B (en) | 2018-07-27 | 2018-07-27 | Method and equipment for treating VOCs gas by microwave-driven electrodeless ultraviolet combined catalytic combustion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810841226.2A CN109268851B (en) | 2018-07-27 | 2018-07-27 | Method and equipment for treating VOCs gas by microwave-driven electrodeless ultraviolet combined catalytic combustion |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109268851A true CN109268851A (en) | 2019-01-25 |
| CN109268851B CN109268851B (en) | 2020-11-03 |
Family
ID=65148334
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810841226.2A Expired - Fee Related CN109268851B (en) | 2018-07-27 | 2018-07-27 | Method and equipment for treating VOCs gas by microwave-driven electrodeless ultraviolet combined catalytic combustion |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109268851B (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110411972A (en) * | 2019-08-30 | 2019-11-05 | 中国科学院大学 | A kind of method of general volatile organic pollutant and non-methane total hydrocarbons concentration in while detection gas |
| CN110671710A (en) * | 2019-10-25 | 2020-01-10 | 深圳麦格米特电气股份有限公司 | Microwave catalytic combustion treatment device and treatment method thereof |
| CN111111434A (en) * | 2020-01-15 | 2020-05-08 | 上海第二工业大学 | Equipment for catalytic degradation of VOCs gas through infrared heating |
| CN113176350A (en) * | 2021-03-29 | 2021-07-27 | 河北科技大学 | Microwave-ultraviolet combined VOCs waste gas catalytic combustion evaluation device |
| CN113209911A (en) * | 2020-01-21 | 2021-08-06 | 中国石油化工股份有限公司 | Equipment and method for microwave-assisted treatment of non-methane total hydrocarbons |
| CN113413757A (en) * | 2021-07-09 | 2021-09-21 | 陕西青朗万城环保科技有限公司 | Ozone removing method and control system thereof |
| CN114618294A (en) * | 2020-12-11 | 2022-06-14 | 陕西青朗万城环保科技有限公司 | Ozone treatment method and control system thereof |
| CN114984748A (en) * | 2022-05-19 | 2022-09-02 | 深圳市天得一环境科技有限公司 | Treatment method and treatment device suitable for VOCs containing benzene series |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001104753A (en) * | 1999-10-13 | 2001-04-17 | Agency Of Ind Science & Technol | Exhaust gas cleaning method |
| CN1304381A (en) * | 1999-05-07 | 2001-07-18 | Bp阿莫科公司 | Composite materials for membrane reactors |
| CN102895871A (en) * | 2012-10-31 | 2013-01-30 | 邓杰帆 | Exhaust gas purifying device |
| CN105921011A (en) * | 2015-12-31 | 2016-09-07 | 中山大学 | Method and device for purifying air pollutants by electrodeless ultraviolet catalytic oxidation as well as catalytic ozonation |
| CN106765217A (en) * | 2015-11-19 | 2017-05-31 | 中国石油化工股份有限公司 | A kind of organic waste gas furnace and incinerating method |
| CN206935119U (en) * | 2017-07-27 | 2018-01-30 | 商志民 | A kind of waste gas purification apparatus of micro-wave nonpolar UV photocatalysis combination |
-
2018
- 2018-07-27 CN CN201810841226.2A patent/CN109268851B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1304381A (en) * | 1999-05-07 | 2001-07-18 | Bp阿莫科公司 | Composite materials for membrane reactors |
| JP2001104753A (en) * | 1999-10-13 | 2001-04-17 | Agency Of Ind Science & Technol | Exhaust gas cleaning method |
| CN102895871A (en) * | 2012-10-31 | 2013-01-30 | 邓杰帆 | Exhaust gas purifying device |
| CN106765217A (en) * | 2015-11-19 | 2017-05-31 | 中国石油化工股份有限公司 | A kind of organic waste gas furnace and incinerating method |
| CN105921011A (en) * | 2015-12-31 | 2016-09-07 | 中山大学 | Method and device for purifying air pollutants by electrodeless ultraviolet catalytic oxidation as well as catalytic ozonation |
| CN206935119U (en) * | 2017-07-27 | 2018-01-30 | 商志民 | A kind of waste gas purification apparatus of micro-wave nonpolar UV photocatalysis combination |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110411972A (en) * | 2019-08-30 | 2019-11-05 | 中国科学院大学 | A kind of method of general volatile organic pollutant and non-methane total hydrocarbons concentration in while detection gas |
| CN110671710A (en) * | 2019-10-25 | 2020-01-10 | 深圳麦格米特电气股份有限公司 | Microwave catalytic combustion treatment device and treatment method thereof |
| CN111111434A (en) * | 2020-01-15 | 2020-05-08 | 上海第二工业大学 | Equipment for catalytic degradation of VOCs gas through infrared heating |
| CN113209911A (en) * | 2020-01-21 | 2021-08-06 | 中国石油化工股份有限公司 | Equipment and method for microwave-assisted treatment of non-methane total hydrocarbons |
| CN113209911B (en) * | 2020-01-21 | 2022-11-01 | 中国石油化工股份有限公司 | Equipment and method for microwave-assisted treatment of non-methane total hydrocarbons |
| CN114618294A (en) * | 2020-12-11 | 2022-06-14 | 陕西青朗万城环保科技有限公司 | Ozone treatment method and control system thereof |
| CN114618294B (en) * | 2020-12-11 | 2024-09-20 | 陕西青朗万城环保科技有限公司 | Ozone treatment method and control system thereof |
| CN113176350A (en) * | 2021-03-29 | 2021-07-27 | 河北科技大学 | Microwave-ultraviolet combined VOCs waste gas catalytic combustion evaluation device |
| CN113176350B (en) * | 2021-03-29 | 2023-02-28 | 河北科技大学 | Microwave-ultraviolet combined VOCs waste gas catalytic combustion evaluation device |
| CN113413757A (en) * | 2021-07-09 | 2021-09-21 | 陕西青朗万城环保科技有限公司 | Ozone removing method and control system thereof |
| CN114984748A (en) * | 2022-05-19 | 2022-09-02 | 深圳市天得一环境科技有限公司 | Treatment method and treatment device suitable for VOCs containing benzene series |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109268851B (en) | 2020-11-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109268851A (en) | A kind of method and apparatus of the electrodeless ultraviolet joint catalysis burning processing VOCs gas of microwave-driven | |
| US7571613B1 (en) | System and method for water pasteurization and power generation | |
| CN104607455A (en) | Multi-stage thermal desorption remediation system for organic polluted soil | |
| CN105757688A (en) | Method and system for treating VOCs gas in sewage treatment plant | |
| CN102913919A (en) | Method for purifying high-concentration organic waste gas | |
| CN1242839C (en) | Drying room exhaust gas purification and energy recovery system and apparatus | |
| CN104043321A (en) | System for purifying exhaust gas generated during baking of enamelled wires | |
| CN113144890A (en) | Waste gas purification system and method containing high-concentration laughing gas | |
| CN206660779U (en) | A kind of waste gas pollution control and treatment system | |
| CN109289467A (en) | Multistage composite exhaust treatment system | |
| CN104815534B (en) | A kind of ozone joint light excites the VOCs cleaning systems and method of peroxide | |
| CN102233234A (en) | Device and method for purifying waste gas containing high-concentration nitrogen oxide (NOx) | |
| CN102274689A (en) | Catalyst purification apparatus for incinerator end gas, and method thereof | |
| CN102072495B (en) | Organic waste gas catalytic combustion device | |
| CN208312410U (en) | Multi-stage, efficient type is catalyzed reacting furnace | |
| CN104056530A (en) | Contaminated soil thermal decomposition tail gas treatment method | |
| CN105716097A (en) | Comprehensive waste gas concentration and catalytic combustion integrated equipment | |
| CN214680961U (en) | Ozone is ultraviolet in coordination's VOC organic waste gas treatment system device | |
| CN212108450U (en) | High-efficient clarification plant of VOC | |
| CN205579598U (en) | Synthesize concentrated catalytic combustion integration equipment of waste gas | |
| RU2286201C2 (en) | Method of purification of the gas outbursts and the device for its realization | |
| CN102824831A (en) | Box-type photoreactor and method for degrading waste gases with ultraviolet (UV) | |
| CN201916911U (en) | Catalytic combustion device for organic waste gases | |
| CN205939175U (en) | Organic gas burns device | |
| CN205517185U (en) | Polyamine class organic waste gas's processing apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201103 |