CN108499354A - The device and decomposition method that ozone quick catalysis decomposes under a kind of microwave assistant - Google Patents
The device and decomposition method that ozone quick catalysis decomposes under a kind of microwave assistant Download PDFInfo
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- CN108499354A CN108499354A CN201810135094.1A CN201810135094A CN108499354A CN 108499354 A CN108499354 A CN 108499354A CN 201810135094 A CN201810135094 A CN 201810135094A CN 108499354 A CN108499354 A CN 108499354A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/8671—Removing components of defined structure not provided for in B01D53/8603 - B01D53/8668
- B01D53/8675—Ozone
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/66—Ozone
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
- B01J23/76—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
- B01J23/84—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36 with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- B01J23/889—Manganese, technetium or rhenium
- B01J23/8892—Manganese
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J27/00—Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
- B01J27/20—Carbon compounds
- B01J27/22—Carbides
- B01J27/224—Silicon carbide
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J29/00—Catalysts comprising molecular sieves
- B01J29/04—Catalysts comprising molecular sieves having base-exchange properties, e.g. crystalline zeolites
- B01J29/06—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof
- B01J29/08—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of the faujasite type, e.g. type X or Y
- B01J29/16—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of the faujasite type, e.g. type X or Y containing arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- B01J29/166—Y-type faujasite
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/06—Polluted air
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2259/00—Type of treatment
- B01D2259/80—Employing electric, magnetic, electromagnetic or wave energy, or particle radiation
- B01D2259/806—Microwaves
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
Abstract
The invention discloses ozone quick catalysis decomposer and methods under a kind of microwave assistant, include air inlet, air-valve, microwave catalytic decomposition of ozone device, wind turbine and gas outlet successively, the wherein described microwave catalytic decomposition of ozone device is made of the modification micro-wave screening net of inlet end, the modification micro-wave screening net of outlet side and microwave cavity, the microwave cavity includes microwave generating apparatus and the catalytic decomposition of ozone material that is filled in microwave cavity, wherein the modified micro-wave screening net is the metal beehive net coated with catalytic decomposition of ozone material.Described device is using the collective effect of microwave radiation, high temperature thermal decomposition and catalytic decomposition come high-efficient purification high humility, high-speed ozone waste gas, while microwave can also realize the in-situ regeneration of ozone decomposing material and the last decomposition of ozone waste gas.Different purification styles can be used for the ozone waste gas of different humidity range, it is easy to operate efficient, it can be widely applied to be used for industrial waste gas field.
Description
Technical field
The present invention relates to technical field of air purification, and in particular to ozone quick catalysis decomposer under a kind of microwave assistant
And decomposition method.
Background technology
The high speed development of China's economy and industry, atmospheric environment is seriously damaged, with air " haze " and " ozone " etc.
The atmosphere pollution being characterized is increasingly serious, is serious environmental problems that numerous cities are faced at present and global main
One of health risk.In gaseous pollutant, ozone problem becomes increasingly conspicuous.According to International Environmental Protection tissue Asia clean air center
Publication《Air China 2015：In The Atmosphere Over China prevention and cure of pollution process》Report, ozone concentration and as primary pollutant number of days
There are increase, ozone pollution to have aggravation trend, becomes the pollutant uniquely to go up not down in several atmosphere pollutions.
Mainly active charcoal method, electromagenetic wave radiation decomposition method, liquid absorption process, the thermal decomposition of existing ozone removal technology
Method, catalysis method etc..In the industrial production, for activated carbon frequently as the adsorption stuffing of adsorption tower, this method is relatively simple and conveniently.But
Be that under the conditions of low concentration ozone, activated carbon mainly plays physisorption, using after a certain period of time, be easy inactivation, need through
It often replaces or regenerates；Under the conditions of high-concentrated ozone, after adsorpting aggregation ozone, activated carbon itself can also participate in reacting, and accelerate to live
The inactivation of property charcoal, and this method is affected by factors such as humidity, air-flow, pressure, concentration, limitation is stronger.Using ultraviolet
Line or near infrared ray irradiate ozone, the disadvantage is that the gas with processing is required to have big contact area, and need energy consumption.With thio sulphur
Sour sodium or sodium sulfite etc. are used as absorbent, and need to handle follow-up waste liquid.Gas is burnt to 400 DEG C, ozone is made
Thermal decomposition or combustion reaction, costly, energy consumption is big.Catalytic decomposition can ozone decomposition at a lower temperature, and do not need
Consume external energy, but catalyst is after high humility long-play, catalyst can poisoning and deactivation, need replacing catalyst or
Person's dystopy regenerated catalyst, can not sustaining degradation.Thus develop under a kind of high humidity it is long-acting, stablize degradation ozone waste gas
Device and ozone decomposed method are extremely important.
Invention content
The present invention is directed to overcome above-mentioned the deficiencies in the prior art, a kind of dress that microwave assistant ozone quick catalysis decomposes is provided
It sets, the in-situ regeneration of catalyst can also be promoted while realizing catalytic decomposition of ozone, high humility ozone waste gas is promoted to continue
Efficient degradation.
Another object of the present invention is to provide a kind of methods using above-mentioned apparatus quick catalysis ozone decomposition.
Another object of the present invention is to provide a kind of above-mentioned microwave assistant ozone quick catalysis decomposer is empty indoors
The application that gas purifies and industrial waste gas is handled.
In order to solve the above technical problems, the technical solution adopted by the present invention is：
A kind of device that microwave assistant ozone quick catalysis decomposes includes air inlet, air-valve, microwave ozone catalytic point successively
Device, wind turbine and gas outlet are solved, wherein the microwave catalytic decomposition of ozone device is by the modification micro-wave screening net of inlet end, outlet side
Modified micro-wave screening net and microwave cavity composition, the microwave cavity include microwave generating apparatus and are filled in microwave cavity
Catalytic decomposition of ozone material, wherein the modified micro-wave screening net is the metal beehive net coated with catalytic decomposition of ozone material.
The microwave catalytic decomposition of ozone device of the present apparatus includes microwave cavity and the coating by filling catalytic decomposition of ozone material
The modification micro-wave screening net for having ozone decomposing material, when catalyst normally acts on, modified micro-wave screening net can also partly be located
Manage ozone waste gas, the decomposing material of microwave cavity also can catalytic degradation ozone waste gas, efficient degradation ozone waste gas.It is lost in catalyst
In the case of work, microwave cavity under microwave condition can carry out catalyst in-situ regeneration, and modified micro-wave screening net can be to micro-
Wave is shielded, and microwave from leakage is prevented, and reinforces internal microwave effect, in being total to for microwave radiation, high temperature thermal decomposition and catalytic decomposition
Regenerated catalyst under same-action, while high-efficient purification ozone pollution object.
Relative to electrical heating, corresponding catalyst is prepared in microwave heating, has a heating Quick uniform, and penetration capacity is strong and nothing
The characteristics of hysteresis quality, and microwave heating also has certain catalysis inducing action, high-intensity microwave irradiation to catalytic decomposition of ozone
It gathers and is lost containing microwave height in the solid catalyst surface of species metal oxide active component, due to surface of solids point
With the strong interaction of microwave energy, microwave energy will be converted into thermal energy, to make metal oxide active component surface point
It is selectively rapidly heated to very high temperature, can quickly be sent out when polar ozone is contacted with the surface-active point being stimulated
Raw cartalytic decomposition effect.Using the collective effect of microwave radiation, high temperature thermal decomposition and catalytic decomposition come high-efficient purification ozone pollution
Object solves the problems such as traditional ozone purification technology high energy consumption, stability is poor, degradation is not thorough, regenerative process is complicated.Pass through wind
Valve regulation controls the air inflow under different situations, can persistently handle high humility ozone waste gas, during which without needing to change catalyst,
Ozone decomposing material in-situ regeneration is realized, it being capable of 0~2000ppm of efficient-decomposition concentration (low concentration 0- containing ozone waste gas
100ppm, high concentration 100-2000ppm), active regeneration is simple and efficient.
Preferably, the aperture of the metal beehive net is 1~5mm, and thickness is in 2.5~50mm, ozone decomposing material coating
Amount is 20-90g/L.The aperture of metal beehive net, which is set as 1~5mm, can reach better micro-wave screening effect, thickness setting
For 2.5~50mm, the coated weight of ozone decomposing material can be increased, coating a certain amount of ozone decomposing material can effectively protect
Treatment effeciency of the card device to high humility, high-speed ozone waste gas.
Preferably, the catalytic decomposition of ozone material being filled in microwave cavity is graininess or cellular, filling rate
It is 10%~95%.Graininess and cellular material can increase effective contact area of catalyst and ozone waste gas, and raising is urged
Change effect.
Preferably, the ozone decomposing material is made of complex carrier and active component, and the complex carrier is to inhale wave to carry
The mixture of body and porous adsorption carrier, the active component are palladium, platinum, manganese, copper, one kind in nickel metal oxide or more
Kind, active component accounts for the 0.1%~50% of catalysis material gross mass.
In the processing of high humility ozone waste gas, predominantly steam effect and other gaseous impurities are inhaled the reason of catalyst inactivation
It is attached on the active site of catalyst, occupies active site, microwave action can preferably be promoted by inhaling wave carrier, and inactivation is catalyzed
The moisture removal of agent, while will be desorbed from active site by gaseous impurity, promote the recovery of active site.Simultaneously because carrier
Suction waveguide hot property it is excellent, effectively avoid temperature runaway from causing the sintering of catalyst activity component.Porous carrier can increase catalysis
Material is conducive to catalytic decomposition processing ozone waste gas in the contact area of ozone waste gas and the dispersibility of active component.
Preferably, the suction wave carrier is ferrite, metal fine powder, the oxide of manganese, silicon carbide, graphite, carbon fiber, charcoal
One or more in black, it is 5%~95% to account for complex carrier mass ratio.
Preferably, the porous adsorption carrier be hydrogen type molecular sieve, coconut husk or coaly activated carbon, it is activated alumina, quasi- thin
One or more in diaspore, silica, it is 5%~95% to account for complex carrier mass ratio.
The catalytic decomposition of ozone material can be by adding adhesive molding granulation or coated on ceramic honey comb.
Preferably, the preparation method of the ozone decomposing material is：
S1. wave carrier and porous adsorption carrier will be inhaled to add water mill carefully drying obtains complex carrier afterwards；
S2. the precursor solution of active component is prepared, complex carrier is added under stirring condition, dipping is stirred at 25~50 DEG C
1~12h；
S3. the permanganate solution of 0.02~0.4mol/L is added in the solution of above-mentioned S2, reacts 1~12h, permanganic acid
The molar ratio of salt and the presoma of active component is 1:0.2~3；
S4. moisture removal, washing and drying is gone to be placed on 0.5~3h of roasting in 150~450 DEG C, obtain institute the solution in S3
State catalytic decomposition of ozone material.
Wherein, the concrete operations of the preparation of complex carrier are：Deionization is added in inhaling wave carrier and porous adsorption carrier
The amount of water of water, every gram of carrier is 0.3~20ml, removes moisture removal after mixing fine grinding, is dried under the conditions of being placed in 80~120 DEG C
To complex carrier.
The precursor solution deionized water of active component or 5~95% alcohols prepare, the alcohol be monohydric alcohol, two
First alcohol or trihydroxylic alcohol, the presoma are that acetate, nitrate or chlorate are one or more.
The permanganate be high manganese lithium, sodium permanganate, potassium permanganate, ammonium permanganate, acerdol, barium permanganate,
Zinc permanganate or magnesium permanganate are one or more.
The washing is that deionized water is washed 1~3 time.
It is using the method that above-mentioned microwave assistant ozone quick catalysis decomposer carries out high humility ozone decomposed：
As waste gas humidity ＜ 60%, air-valve and wind turbine are opened, ozone waste gas passes through inlet end and is modified micro-wave screening successively
Net, microwave ozone decomposed device and outlet side are modified micro-wave screening net catalytic decomposition, when ozone waste gas resolution ratio≤90%, open micro-
Wave generating device adjusts air inflow is initial 5~70%, while opening microwave generating apparatus, maintains microwave cavity temperature 30
~90 DEG C, 10~150min is maintained, in-situ regeneration catalyst, it is initial value that air inflow is adjusted after regeneration, continues to be catalytically decomposed.
When waste gas humidity >=60%, while opening microwave generating apparatus, air-valve and wind turbine, ozone waste gas pass through successively into
Gas end is modified micro-wave screening net, microwave ozone decomposed device and outlet side and is modified micro-wave screening net, and catalytic decomposition maintains microwave cavity
Temperature is 25~80 DEG C.When between 60~80%, reaction bed temperature maintains between 25~50 DEG C ozone waste gas humidity；
When ozone waste gas humidity is between 80-100%, reaction bed temperature maintains between 50~80 DEG C.
Above-mentioned microwave assistant ozone quick catalysis decomposer is in high humidity room air purification and high humility Industry Waste
Application in gas disposal all belongs to the scope of protection of the present invention.
The device realizes the fast decoupled and catalytic decomposition of ozone material of ozone using microwave radiation, thermal decomposition and catalytic decomposition
Material efficient in-situ regeneration, high humility exhaust gas can be effectively treated, have many advantages, such as efficient stable, non-secondary pollution, can answer extensively
For being used for high humidity room air and high humility industrial waste gas process field.
Compared with prior art, the beneficial effects of the invention are as follows：
The device and method that ozone quick catalysis decomposes under a kind of microwave radiation technology of the present invention, described device are equipped with and are coated with
The modification micro-wave screening net of ozone decomposing material and the microwave decomposition cavity filled with ozone decomposing material, using microwave radiation,
The collective effect of high temperature thermal decomposition and catalytic decomposition carrys out high-efficient purification high humility ozone waste gas, while microwave can also realize ozone
The in-situ regeneration of decomposing material and the last decomposition of ozone waste gas.For different humidity range ozone waste gas can be used it is different
Purification style, it is easy to operate efficient, it can be widely applied to be used for industrial waste gas field.
Description of the drawings
Fig. 1 is ozone quick catalysis decomposer figure under microwave radiation technology.
Specific implementation mode
The present invention is further illustrated With reference to embodiment, but embodiment the present invention is not done it is any
The restriction of form.Unless otherwise indicated, source chemicals used in the embodiment of the present invention are the source chemicals routinely bought.
Embodiment 1
As shown in Figure 1, a kind of microwave assistant ozone quick catalysis decomposer, includes air inlet 1, air-valve 2, microwave successively
Catalytic decomposition of ozone device, wind turbine 8 and gas outlet 9, wherein the microwave catalytic decomposition of ozone device is modified micro-wave screening by inlet end
Net 3 and the modification micro-wave screening net 7 and microwave cavity 4 of outlet side composition, the microwave cavity include microwave generating apparatus and fill out
The graininess catalytic decomposition of ozone material 6 in microwave cavity, filling rate 15% are filled, wherein the modified micro-wave screening net is
The aperture of metal beehive net coated with ozone decomposing material, metal beehive net is 3mm, thickness 2.5mm, ozone decomposing material
Coated weight is 20g/L.
Embodiment 2
As shown in Figure 1, a kind of microwave assistant ozone quick catalysis decomposer, includes air inlet 1, air-valve 2, microwave successively
Catalytic decomposition of ozone device, wind turbine 8 and gas outlet 9, wherein the microwave catalytic decomposition of ozone device is modified micro-wave screening by inlet end
Net 3 and the modification micro-wave screening net 7 and microwave cavity 4 of outlet side composition, the microwave cavity include microwave generating apparatus and fill out
The cellular catalytic decomposition of ozone material 6 in microwave cavity, filling rate 90% are filled, wherein the modified micro-wave screening net is
The aperture of metal beehive net coated with ozone decomposing material, metal beehive net is 1mm, thickness 25mm, ozone decomposing material
Coated weight is 80g/L.
Embodiment 3
Ozone waste gas parameter：Air quantity is 100m3/ h, humidity 30%~50%, exhaust gas temperature are room temperature, ozone concentration 40
~50ppm, catalyst volume air speed are 4.5 ten thousand h-1。
The microwave assistant ozone quick catalysis decomposer of Application Example 2 handles ozone waste gas, and wherein microwave fills
It sets 5 to be closed, for the gas of the ingredient containing ozone by modified micro-wave screening net 3, part is smelly after unlatching air-valve 1 and wind turbine 8
Oxygen is modified the catalytic decomposition of micro-wave screening net 3 into oxygen and active oxygen, and most of ozone pollution object, which enters, is filled with ozone catalytic
The microwave ozone decomposed device of decomposing material 6 is catalytically decomposed as oxygen and active oxygen, and residual ozone pollutant changes by outlet side
Property micro-wave screening net 7 is catalytically decomposed as oxygen and active oxygen.
Wherein ozone decomposing material is 0.1%PdO-0.029%MnO2/ coaly activated carbon-silicon carbide, active component are
PdO and MnO2, complex carrier is 95% coaly activated carbon porous adsorption carrier and 5% silicon carbide suction wave carrier.
Ozone decomposing material is prepared by the following preparation method：
S1. 5 grams of silicon carbide are weighed and inhale wave carrier and 95 grams of coaly activated carbons, 300ml deionized waters are added, by mixed carrier
Pour into high-speed material mixing machine, mixed at high speed effect under by two kinds of carrier mixing fine grindings after, centrifugation or suction filtration remove moisture removal,
Being placed in 110 DEG C of drying in baking oven goes moisture removal to obtain complex carrier；
S2. it uses the ethyl alcohol that 300ml mass fractions are 5% to dissolve the palladium bichloride of 0.145g as solvent, adds under stirring condition
Enter complex carrier, the stirring dipping 6h at 25 DEG C；
S3. it weighs 0.052 gram of potassium permanganate and is configured to 0.02mol/L liquor potassic permanganates, delay in the solution of above-mentioned S2
It is slow that liquor potassic permanganate is added dropwise, react 3h；
S4. the solution in S3 is filtered or moisture removal is removed in centrifugation, be washed with deionized 1 time, be placed in 110 DEG C of bakings in baking oven
Dry 12h is placed in Muffle furnace and roasts 3h to get catalyst for 450 DEG C.
When purifier is run to 144h, ozone purification rate is reduced to 90% from 99.85%, carries out in-situ regeneration behaviour
Make, open microwave generating apparatus, air quantity is reduced to 10m by adjusting fan frequency converter3/ h (10%), while adjusting microwave power
Size is 100W, and ozone decomposing material is between temperature maintains 50 ± 2 DEG C under microwave irradiation effect and maintains 60min, in situ
Regenerated catalyst.Close microwave generating apparatus, air quantity restores to initial conditions to continue to run with, ozone decomposed efficiency restore to
99.7%, repeatedly, it can be used 2 years.
Embodiment 4
Exhaust gas parameters：Air quantity is 100m3/ h, humidity 60~70%, exhaust gas temperature are room temperature, ozone concentration is 40~
50ppm, catalyst volume air speed are 4.5 ten thousand h-1。
Wherein ozone decomposing material is 5%NiO-4%MnO2Boehmite-metal fine powder, active component NiO-
MnO2, complex carrier is 75% boehmite and 25% metal fine powder, is prepared by the following method to obtain：
S1. 25 grams of metal fine powders are weighed and inhale wave carrier and 75 grams of boehmite porous carriers, 150ml deionizations are added
Water pours into mixed carrier in high-speed material mixing machine, mixed at high speed effect under by two kinds of carrier mixing fine grindings after, centrifuge or
Suction filtration removes moisture removal, is placed in 100 DEG C of drying in baking oven and moisture removal is gone to obtain complex carrier；
S2. it uses the ethyl alcohol that 110ml mass fractions are 10% to dissolve the nickel acetate of 11.83g as solvent, adds under stirring condition
Enter complex carrier, the stirring dipping 6h at 25 DEG C；
S3. 6.8 grams of sodium permanganates are weighed and are configured to 0.4mol/L sodium permanganate solutions, are slowly dripped in the solution of above-mentioned S2
Increase potassium manganate solution, reacts 3h；
S4. the solution in S3 is filtered or moisture removal is removed in centrifugation, be washed with deionized 1 time, be placed in 110 DEG C of bakings in baking oven
Dry 12h is placed in Muffle furnace and roasts 3h to get catalyst for 450 DEG C.
The purification style of microwave generating apparatus is opened using lasting, while opening microwave generating apparatus, air-valve and wind turbine, is contained
The gas of ozone ingredient passes through inlet end and is modified micro-wave screening net, microwave ozone decomposed device and outlet side modification micro-wave screening successively
Net, catalytic decomposition, microwave ozone decomposed device temperature maintain 30 ± 2 DEG C.When purifier is run to 144h, ozone purification rate
Remain within 95% or more.
Embodiment 5
Exhaust gas parameters：Air quantity is 100m3/ h, humidity 20%~30%, exhaust gas temperature are room temperature, ozone concentration is 80~
100ppm, catalyst volume air speed are 40,000 h-1, using the purification style in embodiment 1.
Wherein ozone decomposing material is 30%MnO2/ HY molecular sieves-silicon carbide, active component MnO2, complex carrier is
90%HY molecular sieves and 10% graphite.
Ozone decomposing material is prepared by the following preparation method：
S1. 10 grams of graphite are weighed and inhale wave carrier and 90 grams of HY molecular sieves, 400ml deionized waters are added, mixed carrier is fallen
Enter in high-speed material mixing machine, mixed at high speed effect under by two kinds of carrier mixing fine grindings after, centrifugation or suction filtration remove moisture removal, and
Being placed in 80 DEG C of drying in baking oven goes moisture removal to obtain complex carrier；
S2. it uses 300ml deionized waters as 50 grams of manganese acetates of solvent dissolving gram, complex carrier is added under stirring condition,
The stirring dipping 12h at 25 DEG C；
S3. 22.83 grams of potassium permanganate are weighed and are configured to 0.02mol/L liquor potassic permanganates, are delayed in the solution of above-mentioned S2
It is slow that liquor potassic permanganate is added dropwise, react 6h；
S4. the solution in S3 is filtered or moisture removal is removed in centrifugation, be washed with deionized 3 times, be placed in 90 DEG C of bakings in baking oven
Dry 12h is placed in Muffle furnace and roasts 1h to get catalyst for 300 DEG C.
When purifier is run to 240h, ozone purification rate is reduced to 90% from 99.9%, carries out in-situ regeneration operation,
Microwave generating apparatus is opened, air quantity is reduced to 5m by adjusting fan frequency converter3/ h, while adjusting microwave power size and being
120W, ozone decomposing material is between temperature maintains 60~70 DEG C under microwave irradiation effect and maintains 0.5h, closes microwave hair
Generating apparatus, air quantity restore to initial conditions to continue to run with, and ozone decomposed efficiency is restored to 99%, repeatedly, can be used 2 years.
Embodiment 6
Exhaust gas parameters：Air quantity is 100m3/ h, humidity 80%~90%, exhaust gas temperature are room temperature, and ozone concentration is
200ppm, catalyst volume air speed are 30,000 h-1, using the lasting purification style for opening microwave generating apparatus.
After opening microwave generating apparatus, air-valve and wind turbine simultaneously, microwave power 200W, the ozone ingredient containing 80~100ppm
Gas through being coated with 30%MnO2The modification micro-wave screening net of/HY molecular sieves-silicon carbide, part ozone microwave radiation,
Oxygen and active oxygen are rapidly decomposed under the collective effect of low temperature thermal decomposition and catalytic decomposition, most of ozone, which enters, to be filled with
30%MnO2The microwave ozone decomposed device of the catalytic decomposition of ozone material of/HY molecular sieves-silicon carbide, ozone is in microwave radiation, height
It is rapidly decomposed into oxygen and active oxygen under the collective effect that warm is decomposed and is catalytically decomposed, residual ozone pollutant is by outlet side
Coated with 30%MnO2The modification micro-wave screening net of/HY molecular sieves-silicon carbide, in microwave radiation, low temperature thermal decomposition and catalysis point
It is rapidly decomposed into oxygen and active oxygen under the collective effect of solution.The ozone of wherein modified micro-wave screening net and microwave ozone decomposed device
Decomposing material is mounted with temperature probe, and temperature is respectively between 25~28 DEG C and 32 ± 3 DEG C.When purifier is run to 240h
When, ozone purification rate remains within 99% or more.
Comparative example 1
Exhaust gas parameters are with embodiment 6, and catalyst type, air speed, wind speed are the same as embodiment 6, ozone quick catalysis decomposer
It is essentially identical in embodiment 6, the difference is that wherein microwave generating apparatus is changed to use electric heater unit, ozone decomposed device
Equally control is at 32 ± 3 DEG C for the temperature of ozone decomposing material, when purifier is run to 240h, ozone purification rate such as following table.
| Condition | Catalyst temperature/DEG C | Ozone decomposed rate | Energy consumption W |
| Microwave assistant (embodiment 6) | 32±3 | 99.5% | 200 |
| Electrical heating (comparative example 1) | 32±3 | 88.7% | 230 |
Comparison is it is recognized that while catalyst bed control is mutually synthermal, but the ozone decomposed rate under microwave assistant is notable
Higher than Electric heating, and energy consumption is lower.
Comparative example 2
With embodiment 6, the microwave power in embodiment 6 is reduced to 40w for exhaust gas parameters, catalyst type, using conventional
The processing of ozone waste gas processing unit, when purifier is run to 240h, ozone waste gas clean-up effect is as shown in the table.
| Condition | Catalyst temperature/DEG C | Ozone decomposed rate | Energy consumption/W |
| Microwave assistant (embodiment 6) | 25 | 99.2% | 40 |
| Conventional purification device | 25 | 82.6% | 0 |
By comparative example it is found that the bulk temperature of catalyst bed does not rise under the microwave assistant of lower-wattage, with conventional smelly
The ozone decomposed rate of oxygen purifier compares it is found that ozone degradation rate significantly gets a promotion under microwave assistant.
Claims (10)
1. a kind of microwave assistant ozone quick catalysis decomposer, which is characterized in that smelly including air inlet, air-valve, microwave successively
Oxygen catalytic destroyer, wind turbine and gas outlet, wherein the microwave catalytic decomposition of ozone device by inlet end modification micro-wave screening net,
The modification micro-wave screening net and microwave cavity of outlet side form, and the microwave cavity includes microwave generating apparatus and is filled in microwave
Catalytic decomposition of ozone material in cavity, wherein the modified micro-wave screening net is the metal coated with catalytic decomposition of ozone material
Cellular Networks.
2. the device that microwave assistant ozone quick catalysis as described in claim 1 decomposes, which is characterized in that the metal beehive net
Aperture be 1 ~ 5mm, for thickness in 2.5 ~ 50mm, ozone decomposing material coated weight is 20-90g/L.
3. the device that microwave assistant ozone quick catalysis as described in claim 1 decomposes, which is characterized in that described to be filled in microwave
Catalytic decomposition of ozone material in cavity is graininess or cellular, and filling rate is 10% ~ 95%.
4. the device that microwave assistant ozone quick catalysis as described in claim 1 decomposes, which is characterized in that the ozone catalytic point
Solution material is made of complex carrier and active component, and the complex carrier is the mixture for inhaling wave carrier and porous adsorption carrier,
The active component is one or more in palladium, platinum, manganese, copper, nickel metal oxide, accounts for catalytic decomposition of ozone quality of materials
0.1%~50%。
5. the device that microwave assistant ozone quick catalysis as claimed in claim 4 decomposes, which is characterized in that the suction wave carrier is
It is one or more in ferrite, metal fine powder, the oxide of manganese, silicon carbide, graphite, carbon fiber, carbon black, account for complex carrier matter
The 5% ~ 95% of amount.
6. the device that microwave assistant ozone quick catalysis as claimed in claim 4 decomposes, which is characterized in that the porous absorption carries
Body is hydrogen type molecular sieve, coconut husk, coaly activated carbon, activated alumina, boehmite, one or more in silica,
Account for the 5% ~ 95% of complex carrier quality.
7. the device that microwave assistant ozone quick catalysis as claimed in claim 4 decomposes, which is characterized in that the ozone catalytic point
Solution material preparation method be：
S1. wave carrier and porous adsorption carrier will be inhaled to add water mill carefully drying obtains complex carrier afterwards；
S2. the precursor solution for preparing active component, is added complex carrier under stirring condition, at 25 ~ 50 DEG C stirring dipping 1 ~
12h；
S3. in the solution of above-mentioned S2 be added 0.02 ~ 0.4mol/L permanganate solution, react 1 ~ 12h, permanganate with
The molar ratio of the presoma of active component is 1: 0.2~3；
S4. moisture removal, washing and drying is gone to be placed on 0.5 ~ 3h of roasting in 150 ~ 450 DEG C, obtain the ozone solution in S3
Material is catalytically decomposed.
8. a kind of method of quick catalysis ozone decomposition exhaust gas, which is characterized in that micro- using claim 1 ~ 7 any one of them
Wave assists the device that ozone quick catalysis decomposes, and opens air-valve and wind turbine, and ozone waste gas passes through inlet end and is modified microwave screen successively
Cover net, microwave ozone decomposed device and outlet side are modified micro-wave screening net catalytic decomposition, when ozone waste gas resolution ratio≤90%, open
Microwave generating apparatus adjusts air inflow is initial 5 ~ 70%, while opening microwave generating apparatus, and maintenance microwave cavity temperature 30 ~
90 DEG C, 10 ~ 150min is maintained, in-situ regeneration catalyst, it is initial value that air inflow is adjusted after regeneration, continues to be catalytically decomposed.
9. a kind of method that quick catalysis decomposes high humility ozone waste gas, which is characterized in that utilize any one of claim 1 ~ 7 institute
The device that the microwave assistant ozone quick catalysis stated decomposes, while opening microwave generating apparatus, air-valve and wind turbine, ozone waste gas according to
It is secondary to be modified micro-wave screening net, microwave ozone decomposed device and outlet side modification micro-wave screening net by inlet end, it is catalytically decomposed, maintains
Microwave cavity temperature is 25 ~ 80 DEG C.
10. a kind of 1 ~ 7 any one microwave assistant ozone quick catalysis decomposer of the claims is in high humility room
Application in air purification and the processing of high humility industrial waste gas.
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111097420A (en) * | 2018-10-26 | 2020-05-05 | 中国科学院过程工程研究所 | Nickel-based ozonolysis catalyst and preparation method and application thereof |
| CN111871172A (en) * | 2020-07-24 | 2020-11-03 | 中国科学院理化技术研究所 | Air purification device, air purification filter element and preparation of air purification filter element |
| 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 |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1179353A (en) * | 1996-10-16 | 1998-04-22 | 中国科学院金属研究所 | Microwave purifying catalyst for automobile tail gas |
| CN203971755U (en) * | 2014-08-22 | 2014-12-03 | 四川省有色冶金研究院有限公司 | The waste gas purification apparatus of the collaborative film separation of microwave catalysis |
| CN104857824A (en) * | 2015-05-27 | 2015-08-26 | 中山大学 | Waste gas processing method and device collaborating vacuum ultraviolet light catalysis and ozone catalytic oxidation |
| CN105312061A (en) * | 2014-06-24 | 2016-02-10 | 江苏瑞丰科技实业有限公司 | Normal-temperature ozone-removal catalytic material |
| CN106178823A (en) * | 2016-07-29 | 2016-12-07 | 杭州朱庇特环境科技有限公司 | A kind of purification technique of indoor organic pollutant |
| CN106732640A (en) * | 2016-11-11 | 2017-05-31 | 湖南锋朗科技股份有限公司 | A kind of preparation method of the ozone decomposition catalyst web plate with modified meerschaum as carrier |
| WO2018006244A1 (en) * | 2016-07-04 | 2018-01-11 | 中国科学院过程工程研究所 | Microwave-selective catalytic reduction combined low-temperature denitration device, process and use |
-
2018
- 2018-02-09 CN CN201810135094.1A patent/CN108499354B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1179353A (en) * | 1996-10-16 | 1998-04-22 | 中国科学院金属研究所 | Microwave purifying catalyst for automobile tail gas |
| CN105312061A (en) * | 2014-06-24 | 2016-02-10 | 江苏瑞丰科技实业有限公司 | Normal-temperature ozone-removal catalytic material |
| CN203971755U (en) * | 2014-08-22 | 2014-12-03 | 四川省有色冶金研究院有限公司 | The waste gas purification apparatus of the collaborative film separation of microwave catalysis |
| CN104857824A (en) * | 2015-05-27 | 2015-08-26 | 中山大学 | Waste gas processing method and device collaborating vacuum ultraviolet light catalysis and ozone catalytic oxidation |
| WO2018006244A1 (en) * | 2016-07-04 | 2018-01-11 | 中国科学院过程工程研究所 | Microwave-selective catalytic reduction combined low-temperature denitration device, process and use |
| CN106178823A (en) * | 2016-07-29 | 2016-12-07 | 杭州朱庇特环境科技有限公司 | A kind of purification technique of indoor organic pollutant |
| CN106732640A (en) * | 2016-11-11 | 2017-05-31 | 湖南锋朗科技股份有限公司 | A kind of preparation method of the ozone decomposition catalyst web plate with modified meerschaum as carrier |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111097420A (en) * | 2018-10-26 | 2020-05-05 | 中国科学院过程工程研究所 | Nickel-based ozonolysis catalyst and preparation method and application thereof |
| CN111097420B (en) * | 2018-10-26 | 2021-04-27 | 中国科学院过程工程研究所 | Nickel-based ozonolysis catalyst and preparation method and application thereof |
| CN111871172A (en) * | 2020-07-24 | 2020-11-03 | 中国科学院理化技术研究所 | Air purification device, air purification filter element and preparation of air purification filter element |
| 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 |
| CN113522018A (en) * | 2021-07-20 | 2021-10-22 | 四川大学 | Device for microwave-assisted catalytic oxidation of VOCs (volatile organic compounds) gas degradation |
| CN114653194A (en) * | 2021-07-21 | 2022-06-24 | 浙江锌芯友好环境材料科技有限公司 | Technology and device for decomposing organic waste gas by microwave and ozone |
| CN113546641A (en) * | 2021-07-26 | 2021-10-26 | 安徽科浦环保科技有限公司 | Preparation method of composite catalytic material for eliminating ozone |
| CN114307630A (en) * | 2021-12-20 | 2022-04-12 | 深圳市天得一环境科技有限公司 | Method and equipment for treating high-humidity ozone-containing waste gas |
| 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 |
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