CN106582266A - Device and method for purifying combined air pollutants - Google Patents
Device and method for purifying combined air pollutants Download PDFInfo
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- CN106582266A CN106582266A CN201611008095.7A CN201611008095A CN106582266A CN 106582266 A CN106582266 A CN 106582266A CN 201611008095 A CN201611008095 A CN 201611008095A CN 106582266 A CN106582266 A CN 106582266A
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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
- B01D53/8668—Removing organic compounds not provided for in B01D53/8603 - B01D53/8665
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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
- B01D53/32—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 by electrical effects other than those provided for in group B01D61/00
- B01D53/323—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 by electrical effects other than those provided for in group B01D61/00 by electrostatic effects or by high-voltage electric fields
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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
- 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
- B01J23/002—Mixed oxides other than spinels, e.g. perovskite
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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
- B01J23/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
- B01J23/54—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
- B01J23/56—Platinum group metals
- B01J23/64—Platinum group metals with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- B01J23/656—Manganese, technetium or rhenium
- B01J23/6562—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
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
- B01J23/54—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
- B01J23/66—Silver or gold
- B01J23/68—Silver or gold with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- B01J23/688—Silver or gold with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium with manganese, technetium or rhenium
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
- B03C3/02—Plant or installations having external electricity supply
- B03C3/04—Plant or installations having external electricity supply dry type
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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
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2523/00—Constitutive chemical elements of heterogeneous catalysts
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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
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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
- Y02A50/2351—Atmospheric particulate matter [PM], e.g. carbon smoke microparticles, smog, aerosol particles, dust
Abstract
The invention provides a device and method for purifying combined air pollutants. The device comprises an electrostatic dust removal module, a compound catalysis module and a draught fan. As for the compound catalysis module, a molecular sieve, active carbon, carbon fibers, titanium dioxide, silicon dioxide, aluminum oxide or an attapulgite carrier is loaded with a catalyst layer, manganese oxide serves as a main agent of the catalyst layer, and reduction-state precious metal serves as an assistant of the catalyst layer; the loading amount of the manganese oxide is 0.1-20% the mass of the carrier; and the loading amount of the reduction-state precious metal is 0-1% the mass of the carrier, and the reduction-state precious metal is selected from one or two or more of platinum, palladium, gold and silver. The device is simple in structure and low in energy consumption, a compound catalyst can conduct catalytic oxidation on formaldehyde and conduct catalytic decomposition on ozone at the room temperature, and meanwhile, VOCs and microorganisms are subjected to catalytic oxidation through the ozone; and the device and method can be widely applied to the fields of indoor air purification and industrial organic waste gas.
Description
Technical field
The invention belongs to technical field of air purification, and in particular to a kind of device of purification composite air pollutant and side
Method.
Background technology
The high speed development of more than 30 years of reform and opening-up, China's economy and industry, atmospheric environment are seriously damaged.With air
The atmospheric pollution that " haze ", PM2.5 and " ozone " etc. are characterized is increasingly serious, brings greatly danger to atmospheric environment and people's health
Evil, is that China is presently the most prominent, the common people pay close attention to the most and thorny environmental problem is most felt by government.Mankind nowadays are faced with " coal
After smoke pollution ", " photochemical pollution ", with the 3rd pollution period that " room air pollution " is mark.Chinese environmental is protected
The relevant data statisticss of shield association show：Once luxurious finishing was carried out in 90% leukemia children man, annual 2100000 child dies from person of outstanding talent
China's finishing；80% house decoration formaldehyde；US Experts detection finds there is more than 500 kinds of VOCs indoors in air, its
Middle carcinogen just has kind more than 20, such as formaldehyde, benzene and toluene etc..Modern life and the time being operated in indoor environment reach
To the 80%～90% of whole day；Human body air intake quality accounts for more than the 75% of intake total amount.In general, people respiratory system is exempted from
Epidemic disease power is fragile many compared with digestive system, therefore, air quality is self-evident, summer high-temperature to the importance of people's health
Under the conditions of, in air, photochemical reaction strengthens, and can produce the secondary pollution of more fine particle；And because high humidity, it is low
Layer wind speed is little, and the pollutant in air can combine with moisture, and PM2.5 is very easy to accumulation and is difficult diffusion, " summer haze "
Just generate.Autumn and winter season is compared, injury of the summer haze to pulmonary can be more serious, because temperature height easily multiplies antibacterial, this
A little antibacterials can stick the respiratory tract for slipping into people in aerial little particle quietly, jeopardize health.This external monitor shows
Show, " ozone " of 2016 is aggravating into the number of times of primary pollutant, Canadian occupational health and safety center（CCOHS）Carry
Go out, ozone can stimulate and damage nasal mucosa and respiratory tract, cause cough uncomfortable in chest, laryngopharynx swelling and pain, asthma.And it is likely to result in lung work(
Energy decrease, emphysema and lung injury, and these damages are often unrepairable.Air pollutants are presented compound spy
Point, pollutant include particulate matter, gaseous molecular and microbial virus etc..
Air purifying process single function, limited efficacy, focus primarily upon particulate matter removal at present, and for carcinogenic, cause
The more serious gaseous contaminants of harm such as the benzene homologues and formaldehyde of disease and infectiousness pathogenic bacteria lack effective and economic side
Method is eliminated.As absorption method is only capable of being enriched with and non-degradable part gaseous contaminant, cannot work on after adsorption saturation, and
Easy breed bacteria.In recent years emerging anion technology is also only capable of removing pellet, and plasma technique has energy consumption
The deficiencies such as high and ozonation by-product.Individually UV or ozone technology are common air disinfection methods, but its oxidability is limited, nothing
Method kills many stubborn bacteria viruses and degraded gas molecule pollutant.Additionally, UV is present cannot be irradiated to region, and ozone is residual
Yu Ruo is not eliminated and can be produced secondary pollution.There is inherent shortcoming in prior art, will realize the process needs to combined pollutant
With reference to substantial amounts of processing means, complex structure and relatively costly, it is difficult to meet an urgent demand of Current air pollution purification.
The content of the invention
The technical problem to be solved is the drawbacks described above for overcoming prior art to exist, there is provided a kind of purification is compound
The device of air pollutants.
Second object of the present invention provides the method for carrying out purification of air using said apparatus.
The purpose of the present invention is achieved by the following technical programs：
A kind of device of purification composite air pollutant, successively including electrostatic precipitation module, composite catalyzing module and blower fan；It is described
Composite catalyzing module is on molecular sieve, activated carbon, carbon fiber, titanium dioxide, silicon dioxide, aluminium oxide or attapulgite carrier
Mn oxide is loaded with for host, catalyst layer of the reduction-state noble metal for auxiliary agent；Wherein the load capacity of Mn oxide is carrier
The 0.1～20% of quality；The load capacity of reduction-state noble metal for carrier quality 0～1%, the reduction-state noble metal selected from platinum,
One or two kinds of in palladium, gold, silver, or it is two or more.
The device is aoxidized using catalytic ozonation, formaldehyde nano-catalytic and the synergism of ozone decomposed is compound to purify
Air pollutants.
Preferably, the load capacity of the reduction-state noble metal for carrier quality 0.05～1%.
Preferably, multiple draw-in grooves, the electrostatic precipitation module, composite catalyzing mould are uniformly provided with the upper lower wall of described device
Block is combined by the draw-in groove being close on the upper lower wall of device.
Preferably, there is electrostatic field high voltage control actuator in the electrostatic precipitation module, can be used to adjust the electricity of electrostatic field
Pressure, the voltage of the electrostatic precipitation module is 2～30kv.
When volatile organic contaminant concentration is higher in air pollutants, catalyst layer can be urged by increasing to be combined
Quantity passes through to adjust electrostatic field high voltage control actuator, heightens voltage, to improve catalysiss.
It is therefore preferred that the number of plies of the recombination catalyst layer is more than 1 layer, or 2 layers, or 2 layers.
Preferably, the voltage of the electrostatic precipitation module is 2～30kv；When air pollutant concentration is higher, which is adjusted
The voltage of electrostatic precipitation module is 8kv～30kv, when air pollutant concentration is relatively low, the voltage of electrostatic precipitation module be 2kv～
8kv。
Preferably, the preparation method of the composite catalyzing module is：
S1. according to required load capacity, the presoma of a certain amount of Mn oxide is dissolved in deionized water；
S2. carrier, and 1～60min of ultrasonic immersing under ultrasound condition are poured under the state that is stirred vigorously into；
S3. it is transferred in shaking table, after convolution 6～24h of concussion, opens heater, under the conditions of 40～90 DEG C, in concussion
It is in wetting state by moisture evaporation to carrier；
S4. be positioned over 6～12h in 110 DEG C of baking ovens, by moisture evaporation after, be placed in Muffle furnace, with 10 DEG C/min climbing speeds
300～700 DEG C are risen to, 1～5h of constant temperature calcining obtains catalyst intermediate A；
S5. mixed liquor is obtained to lucky wet face state to Deca deionized water in catalyst intermediate A；
S6. the soluble precious-metal presoma of 0.005～0.05mol/L is taken, the mixed liquor of S5 is added under stirring
In, and 5～30min of ultrasound；
S7. in mixed liquor liquid reducing agent is being added to carry out reduction reaction, by the suspension for obtaining, water-bath after 2～5h of reaction
It is wetting state to be heated to solid, is obtained final product after 100～150 DEG C of drying.
Preferably, during the presoma of S1 soluble manganeses oxide is manganese nitrate, manganese acetate, manganese sulfate or potassium permanganate
One or two kinds of.
It is highly preferred that 40～60 DEG C of the heating-up temperature of S3.
Preferably, sintering temperature described in S4 is 400～600 DEG C, 2～3h of constant temperature calcining.
Preferably, villaumite or nitrate of the soluble precious-metal presoma described in S6 for solubility（Can be specifically chlorine
Hydrochlorate or nitrate）.
Preferably, the one kind of liquid reducing agent described in S7 in methanol, sodium borohydride, potassium borohydride, hydrazine hydrate, formaldehyde
Or two kinds, or it is two or more.
Preferably, the molal quantity of liquid reducing agent described in S7 is 5～150 times of soluble precious-metal presoma described in S6.
Preferably, the form of the carrier is preferably powder, granule, column or cellular.
Composite catalyzing module described in this device can just pass through without the need for any material of extraneous offer or other conditions in room temperature
Nano-catalytic oxidation of formaldehyde is come the formaldehyde gaseous contaminant in purifying the air of a room.
Device of the present invention can be used for purifying air pollution thing, it is preferable that the air pollutants be comprising particulate matter,
Microorganism, volatile organic gas, ozone or comprising two in particulate matter, volatile organic gas, ozone and microorganism
Plant or two or more mixed gas.
The present invention also provides the method for carrying out purification of air using the device of described purification composite air pollutant, including
Following steps：
S1. electrostatic precipitation module is entered containing particulate matter, ozone, the contaminated air of volatile organic gas, through high-voltage electrostatic field
When it is charged in corona discharge process, tend to dust collector pole surface and discharge depositing；
S2. moisture in air, oxygen the crash response of high energy electron and hydrone and are excited under corona discharge effect
State oxygen produces hydroxyl radical free radical and ozone with the charge transfer reaction of hydrone, and the ozone in the ozone and air is through compound
Catalytic module is broken down into highly reactive form of oxygen free radical, for voloxidation organic pollution；
S3. formaldehyde pollutants are catalytically oxidized to CO when through composite catalyzing module2And H2O。
When pollutants in air only includes low concentration formaldehyde volatile organic contaminant or multiple containing two kinds of formaldehyde and ozone
During mould assembly pollutant, the method for carrying out purification of air using the device of described purification composite air pollutant includes following step
Suddenly：
S1. electrostatic precipitation module is closed, and blower fan is only opened containing ozone, the contaminated air of formaldehyde pollutants through electrostatic precipitation mould
Block, the ozone in air through composite catalyzing module by catalytic decomposition into highly reactive form of oxygen free radical, for oxidation of formaldehyde volatility
Organic pollution；
S2. low concentration formaldehyde pollutant are also catalytically oxidized to CO when through composite catalyzing module simultaneously2And H2O。
Compared with prior art, the invention has the advantages that：
The invention provides a kind of device of purification composite air pollutant, successively including electrostatic precipitation module, composite catalyzing mould
Block and blower fan；The composite catalyzing module be molecular sieve, activated carbon, carbon fiber, titanium dioxide, silicon dioxide, aluminium oxide or
Attapulgite supported on carriers has Mn oxide for host, catalyst layer of the reduction-state noble metal for auxiliary agent；Wherein Mn oxide
Load capacity for carrier quality 0.1～20%；The load capacity of reduction-state noble metal for carrier quality 0～1%, the reduction-state
One or two kinds of of the noble metal in platinum, palladium, gold, silver, or it is two or more；The apparatus structure is simple, energy consumption is low, wherein
Interior can be purified by catalytic ozonation, nano-catalytic oxidation of formaldehyde, catalytic decomposition of ozone under composite catalyst room temperature
The volatile gaseous pollutant such as formaldehyde, benzene homologues in air and ozone pollution thing, and also can be direct under the conditions of ozone free
Catalytic decomposition formaldehyde pollutants；The method that purification of air is carried out using the device solves conventional electrostatic dust collecting process function list
First, degradation efficiency is low, thoroughly, easily do not produce intermediate product causes the defects such as secondary pollution；Atmospheric ozone can be realized simultaneously
With the efficient utilization of ozonation by-product resource in electrostatic precipitator；The device can also according to air pollution species, concentration level,
Simple to operate, service ability has controllability, can be widely applied to indoor air purification field and industrial organic exhaust gas field.
Description of the drawings
Fig. 1 is the overall structure diagram of device of the present invention；
Description of reference numerals：1- electrostatic precipitation modules；2- composite catalyzing modules；3- draw-in grooves；4- blower fans.
Specific embodiment
Further illustrate present disclosure below in conjunction with Figure of description and specific embodiment, but should not be construed as it is right
The restriction of the present invention.In the case of spirit of the invention and essence, the modification made by the inventive method, step, condition
Or replace, belong to the scope of the present invention.Unless otherwise noted, experimental technique used in embodiment is people in the art
Conventional method and technology known to member, reagent or material are and are obtained by commercial sources.
1 composite catalyst of embodiment：5%MnO2- 0.1%Pt- carbon fibers
A kind of composite catalyst scavenging material, with carbon fiber as carrier, active component accounts for carrier ratio and contains by mass fraction：Two
Manganese oxide 5%；Platinum 0.1%.
Concrete preparation process is as follows：By 1.409g manganese acetates 50ml deionized water dissolving, fall under the state that is stirred vigorously
Enter 10g carbon fibre carriers, and the ultrasonic immersing 60min under ultrasound condition；It is transferred in shaking table, after convolution concussion 12h, opens and add
Thermal, under the conditions of 50 DEG C, in concussion by moisture evaporation to solid carrier in wetting state；Then transfer is positioned over 110
6h in DEG C baking oven, by moisture evaporation after, be placed in Muffle furnace, rise to 500 DEG C with 10 DEG C/min climbing speeds, constant temperature calcining 2h
It is cooled to room temperature and obtains catalyst intermediate A；It is in infiltration that in catalyst intermediate A, Deca 53ml deionized water makes which just
The mixed liquor of state；Take the H of 2.562ml 0.02mol/L2PtCl6Solution, is added in mixed liquor under stirring, and surpasses
Sound 10min；In mixed liquor, add sodium borohydride reduction agent to carry out reduction reaction, the suspension for obtaining is carried out into water-bath after reaction
It is wetting state to be heated to solid catalyst, obtains final product composite catalyzing material after 110 DEG C of drying.
2 composite catalyst of embodiment：1%MnO2- 0.05%Pt- molecular sieves
A kind of composite catalyst scavenging material, with molecular sieve as carrier, active component accounts for carrier ratio and contains by mass fraction：Two
Manganese oxide 1%；Platinum 0.05%.
Concrete preparation process is as follows：By 0.2818g manganese acetates 30ml deionized water dissolving, fall under the state that is stirred vigorously
Enter 10g molecular sieve carriers, and the ultrasonic immersing 20min under ultrasound condition；It is transferred in shaking table, after convolution concussion 24h, opens and add
Thermal, under the conditions of 80 DEG C, in concussion by moisture evaporation to solid carrier in wetting state；Then transfer is positioned over 110
6h in DEG C baking oven, by moisture evaporation after, be placed in Muffle furnace, rise to 550 DEG C with 10 DEG C/min climbing speeds, constant temperature calcining 3h
It is cooled to room temperature and obtains catalyst intermediate A；It is in infiltration that in catalyst intermediate A, Deca 18ml deionized water makes which just
State obtains mixed liquor；Take the H of 1.281ml 0.02mol/L2PtCl6Solution, is added in mixed liquor under stirring, and surpasses
Sound 10min；In mixed liquor adding sodium borohydride reduction agent to carry out reduction reaction, the suspension for obtaining is being entered into water-filling after reaction
It is wetting state that bath is heated to solid catalyst, obtains final product composite catalyzing material after 120 DEG C of drying.
3 composite catalyst of embodiment：10%MnO2-1%Pt-AC
A kind of composite catalyst scavenging material, with activated carbon as carrier, active component accounts for carrier ratio and contains by mass fraction：Two
Manganese oxide 10%；Platinum 1%
Concrete preparation process is as follows：By 2.818g manganese acetates 40ml deionized water dissolving, 10g is poured under the state that is stirred vigorously
Absorbent charcoal carrier, and the ultrasonic immersing 30min under ultrasound condition；It is transferred in shaking table, after convolution concussion 24h, opens heating dress
Put, under the conditions of 60 DEG C, in concussion by moisture evaporation to solid carrier in wetting state；Then transfer is positioned over 110 DEG C of bakings
6h in case, by moisture evaporation after, be placed in Muffle furnace, rise to 300 DEG C with 10 DEG C/min climbing speeds, constant temperature calcining 3h cooling
Catalyst intermediate A is obtained to room temperature；It is in wet face state that in catalyst intermediate A, Deca 20ml deionized water makes which just
Obtain mixed liquor；Take the H of 25.625ml 0.02mol/L2PtCl6Solution, is added in mixed liquor under stirring, and ultrasound
10min；In mixed liquor adding sodium borohydride reduction agent to carry out reduction reaction, the suspension for obtaining is being carried out into water-bath after reaction
It is wetting state to be heated to solid catalyst, obtains final product composite catalyzing material after 110 DEG C of drying.
4 composite catalyst of embodiment：2%MnO2-0.5%Pt-TiO2
A kind of composite catalyst scavenging material, with titanium dioxide as carrier, active component accounts for carrier ratio and contains by mass fraction：
Manganese dioxide 5%；Platinum 0.1%.
Concrete preparation process is as follows：By 0.5636g manganese nitrates 30ml deionized water dissolving, fall under the state that is stirred vigorously
Enter 10g titania supports, and the ultrasonic immersing 60min under ultrasound condition；It is transferred in shaking table, after convolution concussion 6h, opens
Heater, under the conditions of 60 DEG C, in concussion by moisture evaporation to solid carrier in wetting state；Then transfer is positioned over
6h in 110 DEG C of baking ovens, by moisture evaporation after, be placed in Muffle furnace, rise to 550 DEG C with 10 DEG C/min climbing speeds, constant temperature roasting
Burning 3h is cooled to room temperature and obtains catalyst intermediate A；To in catalyst intermediate A, Deca 15ml deionized water makes which be in just
Wet face state obtains mixed liquor；Take the H of 6.406ml 0.02mol/L2PtCl6Solution, is added in mixed liquor under stirring,
And ultrasound 20min；In mixed liquor adding potassium borohydride reduction agent to carry out reduction reaction, the suspension for obtaining is being entered after reaction
It is moistening shape body that water-filling bath is heated to solid catalyst, obtains final product composite catalyzing material after 110 DEG C of drying.
5 composite catalyst of embodiment：1%MnO2-0.1%Pd-AC
A kind of composite catalyst scavenging material, with activated carbon as carrier, active component accounts for carrier ratio and contains by mass fraction：Two
Manganese oxide 1%；Palladium 0.1%.
Concrete preparation process is as follows：By 0.2058g manganese nitrates 30ml deionized water dissolving, fall under the state that is stirred vigorously
Enter 10g absorbent charcoal carriers, and the ultrasonic immersing 60min under ultrasound condition；It is transferred in shaking table, after convolution concussion 24h, opens and add
Thermal, under the conditions of 60 DEG C, in concussion by moisture evaporation to solid carrier in wetting state；Then transfer is positioned over 110
12h in DEG C baking oven, by moisture evaporation after, be placed in Muffle furnace, rise to 300 DEG C with 10 DEG C/min climbing speeds, constant temperature calcining
3h is cooled to room temperature and obtains catalyst intermediate A；It is in leaching that in catalyst intermediate A, Deca 20ml deionized water makes which just
Profit state obtains mixed liquor；Take the PdCl of 9.393ml 0.01mol/L2Solution, is added in mixed liquor under stirring, and surpasses
Sound 20min；In mixed liquor adding sodium borohydride reduction agent to carry out reduction reaction, the suspension for obtaining is being entered into water-filling after reaction
It is moistening shape body that bath is heated to solid catalyst, obtains final product composite catalyzing material after 110 DEG C of drying.
6 composite catalyst of embodiment：1%MnO2-0.1%Ag-AC
A kind of composite catalyst scavenging material, with activated carbon as carrier, active component accounts for carrier ratio and contains by mass fraction：Two
Manganese oxide 1%；Ag0.1%.
Concrete preparation process is as follows：By 0.2058g manganese nitrates 30ml deionized water dissolving, fall under the state that is stirred vigorously
Enter 10g absorbent charcoal carriers, and the ultrasonic immersing 60min under ultrasound condition；It is transferred in shaking table, after convolution concussion 24h, opens and add
Thermal, under the conditions of 60 DEG C, in concussion by moisture evaporation to solid carrier in wetting state；Then transfer is positioned over 110
12h in DEG C baking oven, by moisture evaporation after, be placed in Muffle furnace, rise to 300 DEG C with 10 DEG C/min climbing speeds, constant temperature calcining
3h is cooled to room temperature and obtains catalyst intermediate A；It is in leaching that in catalyst intermediate A, Deca 20ml deionized water makes which just
Profit state obtains mixed liquor；Take the AgNO of 15.45ml 0.04mol/L3Solution, is added in mixed liquor under stirring, and surpasses
Sound 20min；In mixed liquor adding sodium borohydride reduction agent to carry out reduction reaction, the suspension for obtaining is being entered into water-filling after reaction
It is moistening shape body that bath is heated to solid catalyst, obtains final product composite catalyzing material after 110 DEG C of drying.
7 composite catalyst of embodiment：1%MnO2-0.05%Pt-0.05%Ag-AC
A kind of composite catalyst scavenging material, with activated carbon as carrier, active component accounts for carrier ratio and contains by mass fraction：Two
Manganese oxide 1%；0.05%Pt、0.05%Ag.
Concrete preparation process is as follows：By 0.2058g manganese nitrates 30ml deionized water dissolving, fall under the state that is stirred vigorously
Enter 10g absorbent charcoal carriers, and the ultrasonic immersing 60min under ultrasound condition；Transfer is put in shaking table, after convolution concussion 24h, opens and adds
Thermal, under the conditions of 60 DEG C, in concussion by moisture evaporation to solid carrier in wetting state；Then transfer is positioned over 110
12h in DEG C baking oven, by moisture evaporation after, be placed in Muffle furnace, rise to 300 DEG C with 10 DEG C/min climbing speeds, constant temperature calcining
3h is cooled to room temperature and obtains catalyst intermediate A；It is in leaching that in catalyst intermediate A, Deca 20ml deionized water makes which just
Profit state obtains mixed liquor；Take the AgNO of 7.725ml 0.04mol/L3The H of solution and 1.281ml 0.02mol/L2PtCl6It is molten
Liquid, is added in mixed liquor under stirring, and ultrasound 30min；In mixed liquor sodium borohydride reduction agent is being added to carry out
Reduction reaction, it is moistening shape body that the suspension for obtaining is carried out heating in water bath to solid catalyst after reaction, after 110 DEG C of drying i.e.
Obtain composite catalyzing material.
8 electrostatic catalytic ozonation of embodiment cooperates with the air cleaner of normal-temperature nano catalysis oxidation
As shown in figure 1, the device includes electrostatic precipitation module 1, composite catalyzing module 2 and blower fan 4 successively from the left side to the right, its
Any one in the middle composite catalyzing module 2 i.e. preparation-obtained catalyst of embodiment 1-7；It is the electrostatic precipitation module 1, multiple
Close catalytic module 2 to combine by the draw-in groove 3 being close on the upper lower wall of device, the number of plies of the composite catalyst module can
Increased or decreased according to practical situation, if increasing, you can by being inserted into formaldehyde normal-temperature nano catalyst layer i.e. in the draw-in groove
Can.
The method that embodiment 9 carries out purification of air using 8 described device of embodiment
When pollutants in air is comprising volatile organic contaminant, ozone such as particulate matter, benzene homologues and contains formaldehyde pollutants
During etc. various compound pollutant, the method for carrying out purification of air using Fig. 1 described devices comprises the steps：
（1）Contaminated air containing particulate matter, ozone, volatile organic gas enters electrostatic precipitation module 1, through high-voltage electrostatic field
When it is charged in corona discharge process, tend to dust collector pole surface and discharge depositing；
（2）Moisture, oxygen in air under corona discharge effect, the crash response and excited state of high energy electron and hydrone
Oxygen produces the oxidizing species such as hydroxyl radical free radical and ozone with the charge transfer reaction of hydrone, in the ozone and air
Ozone is broken down into highly reactive form of oxygen free radical through composite catalyzing module 2, for voloxidation organic pollution；
（3）Formaldehyde pollutants synchronous can also be catalytically oxidized to CO when through composite catalyzing module 22And H2O。
The method that embodiment 10 carries out purification of air using 8 described device of embodiment
When pollutants in air only includes low concentration formaldehyde volatile organic contaminant or compound containing two kinds of formaldehyde and ozone
During pollutant, the method for carrying out purification of air using Fig. 1 devices comprises the steps：
（1）Close electrostatic precipitation module 1, only open blower fan 4, containing ozone, formaldehyde pollutants contaminated air through electrostatic precipitation
Module 1, the ozone in air through composite catalyzing module 2 by catalytic decomposition into highly reactive form of oxygen free radical, wave for oxidation of formaldehyde
The property sent out organic pollution；
（2）Low concentration formaldehyde pollutant synchronous can also be catalytically oxidized to CO when through composite catalyzing module 2 simultaneously2With
H2O。
Claims (7)
1. it is a kind of purification composite air pollutant device, it is characterised in that successively including electrostatic precipitation module（1）, compound urge
Change module（2）And blower fan（4）；The composite catalyzing module（2）It is in molecular sieve, activated carbon, carbon fiber, titanium dioxide, dioxy
SiClx, aluminium oxide or attapulgite supported on carriers have Mn oxide for host, catalyst layer of the reduction-state noble metal for auxiliary agent；
Wherein the load capacity of Mn oxide is the 0.1～20% of carrier quality；The load capacity of reduction-state noble metal for carrier quality 0～
1%, one or two kinds of of the reduction-state noble metal in platinum, palladium, gold, silver, or it is two or more.
2. it is according to claim 1 purification composite air pollutant device, it is characterised in that the upper lower wall of described device
On be uniformly provided with multiple draw-in grooves（3）, the electrostatic precipitation module（1）, composite catalyzing module（2）By being close to the upper and lower of device
Draw-in groove on wall（3）Combine.
3. it is according to claim 1 purification composite air pollutant device, it is characterised in that the electrostatic precipitation module
（1）Voltage be 2～30kv.
4. it is according to claim 1 purification composite air pollutant device, it is characterised in that the composite catalyzing module
（2）Preparation method be：
S1. according to required load capacity, the presoma of a certain amount of soluble manganese oxide is dissolved in deionized water；
S2. carrier, and 1～60min of ultrasonic immersing under ultrasound condition are poured under the state that is stirred vigorously into；
S3. it is transferred in shaking table, after convolution 6～24h of concussion, opens heater, under the conditions of 40～90 DEG C, in concussion
It is in wetting state by moisture evaporation to carrier；
S4. be positioned over 6～12h in 110 DEG C of baking ovens, by moisture evaporation after, be placed in Muffle furnace, with 10 DEG C/min climbing speeds
300～700 DEG C are risen to, 1～5h of constant temperature calcining obtains catalyst intermediate A；
S5. mixed liquor is obtained to lucky wet face state to Deca deionized water in catalyst intermediate A；
S6. the soluble precious-metal presoma of 0.005～0.05mol/L is taken, the mixed liquor of S5 is added under stirring
In, and 5～30min of ultrasound；
S7. in mixed liquor liquid reducing agent is being added to carry out reduction reaction, by the suspension for obtaining, water-bath after 2～5h of reaction
It is wetting state to be heated to solid, is obtained final product after 100～150 DEG C of drying.
5. it is according to claim 4 purification composite air pollutant device, it is characterised in that liquid reducing agent described in S7
One or two kinds of in methanol, sodium borohydride, potassium borohydride, hydrazine hydrate, formaldehyde, or it is two or more.
6. the method for carrying out purification of air using the device of the purification composite air pollutant described in any one of claim 1 to 5,
Characterized in that, comprising the following steps：
S1. electrostatic precipitation module is entered containing particulate matter, microorganism, ozone, the contaminated air of volatile organic gas（1）, pass through
It is charged in corona discharge process during high-voltage electrostatic field, tend to dust collector pole surface and discharge depositing；
S2. moisture in air, oxygen the crash response of high energy electron and hydrone and are excited under corona discharge effect
State oxygen produces hydroxyl radical free radical and ozone with the charge transfer reaction of hydrone, for oxidation stain thing, the ozone and air
In ozone through composite catalyzing module（2）Highly reactive form of oxygen free radical is broken down into, for voloxidation organic pollution；
S3. formaldehyde pollutants are through composite catalyzing module（2）When be catalytically oxidized to CO2And H2O。
7. the method for carrying out purification of air using the device of the purification composite air pollutant described in any one of claim 1 to 5,
Characterized in that, comprising the following steps：
S1. close electrostatic precipitation module（1）, only open blower fan（4）, containing ozone, formaldehyde pollutants contaminated air through electrostatic
Dedusting module（1）, the ozone in air is through composite catalyzing module（2）By catalytic decomposition into highly reactive form of oxygen free radical, for oxygen
Change formaldehyde volatile organic contaminant；
S2. while low concentration formaldehyde pollutant are through composite catalyzing module（2）When be also catalytically oxidized to CO2And H2O。
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| CN107597114A (en) * | 2017-09-07 | 2018-01-19 | 长兴（广州）电子材料有限公司 | A kind of manganese base aeroge, its preparation method and the method using manganese base aeroge purification waste gas |
| CN108745351A (en) * | 2018-06-26 | 2018-11-06 | 福建农林大学 | A kind of aerogel composite and its application with room temperature except formaldehyde performance |
| CN108786313A (en) * | 2018-06-21 | 2018-11-13 | 河南师范大学 | A kind of adjustable air purification instrument of intelligence |
| CN110237841A (en) * | 2019-06-05 | 2019-09-17 | 北京氦舶科技有限责任公司 | Platinum-manganese oxide load aluminium oxide catalyst and its preparation method and application |
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| CN111692668A (en) * | 2020-06-15 | 2020-09-22 | 华中科技大学 | Air purification method and device based on corona discharge plasma |
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| WO2021035850A1 (en) * | 2019-08-30 | 2021-03-04 | 新乐华家用电器(深圳)有限公司 | Soot removing device and method |
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| CN107597114A (en) * | 2017-09-07 | 2018-01-19 | 长兴（广州）电子材料有限公司 | A kind of manganese base aeroge, its preparation method and the method using manganese base aeroge purification waste gas |
| CN108786313A (en) * | 2018-06-21 | 2018-11-13 | 河南师范大学 | A kind of adjustable air purification instrument of intelligence |
| CN108745351A (en) * | 2018-06-26 | 2018-11-06 | 福建农林大学 | A kind of aerogel composite and its application with room temperature except formaldehyde performance |
| CN108745351B (en) * | 2018-06-26 | 2020-12-29 | 福建农林大学 | Composite aerogel material with room-temperature formaldehyde removal performance and application thereof |
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| WO2021035850A1 (en) * | 2019-08-30 | 2021-03-04 | 新乐华家用电器(深圳)有限公司 | Soot removing device and method |
| WO2021035851A1 (en) * | 2019-08-30 | 2021-03-04 | 新乐华家用电器(深圳)有限公司 | Cooking fume removing device |
| CN111692668B (en) * | 2020-06-15 | 2021-12-31 | 华中科技大学 | Air purification method and device based on corona discharge plasma |
| CN111692668A (en) * | 2020-06-15 | 2020-09-22 | 华中科技大学 | Air purification method and device based on corona discharge plasma |
| CN111921375A (en) * | 2020-09-03 | 2020-11-13 | 珠海格力电器股份有限公司 | Ag-MnO2/AC composite aldehyde-removing material, preparation method thereof, aldehyde-removing module and air purification equipment |
| CN112108115A (en) * | 2020-09-21 | 2020-12-22 | 中国科学院新疆理化技术研究所 | Preparation method and testing device of carbon-based composite material for catalyzing and degrading multiple organic matters at room temperature |
| CN112108115B (en) * | 2020-09-21 | 2023-04-25 | 中国科学院新疆理化技术研究所 | Preparation method and testing device of carbon-based composite material for catalyzing and degrading various organic matters at room temperature |
| WO2022095619A1 (en) * | 2020-11-06 | 2022-05-12 | 佛山市顺德区美的电热电器制造有限公司 | Air purifier and catalyst preparation method |
| CN112958088A (en) * | 2021-03-23 | 2021-06-15 | 河南神马尼龙化工有限责任公司 | Preparation method of biochar catalyst for synergistically purifying volatile organic pollutants |
| CN114160306A (en) * | 2021-11-18 | 2022-03-11 | 万华化学（宁波）有限公司 | Preparation method of polar high-molecular type coal water slurry additive and residual carbon separation method |
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