CN101306205A - Active composite catalyst air cleaning system - Google Patents
Active composite catalyst air cleaning system Download PDFInfo
- Publication number
- CN101306205A CN101306205A CNA2007100491018A CN200710049101A CN101306205A CN 101306205 A CN101306205 A CN 101306205A CN A2007100491018 A CNA2007100491018 A CN A2007100491018A CN 200710049101 A CN200710049101 A CN 200710049101A CN 101306205 A CN101306205 A CN 101306205A
- Authority
- CN
- China
- Prior art keywords
- air
- ozone
- catalyst
- gaseous contaminant
- utilize
- 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.)
- Pending
Links
- 239000003054 catalyst Substances 0.000 title claims description 58
- 238000004140 cleaning Methods 0.000 title description 3
- 239000002131 composite material Substances 0.000 title description 3
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims abstract description 75
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 31
- 230000003647 oxidation Effects 0.000 claims abstract description 30
- 230000003197 catalytic effect Effects 0.000 claims abstract description 28
- 239000000356 contaminant Substances 0.000 claims description 23
- 238000000746 purification Methods 0.000 claims description 13
- 238000006555 catalytic reaction Methods 0.000 claims description 10
- 238000006385 ozonation reaction Methods 0.000 claims 7
- 238000000034 method Methods 0.000 abstract description 15
- 239000003344 environmental pollutant Substances 0.000 abstract description 12
- 231100000719 pollutant Toxicity 0.000 abstract description 12
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 abstract description 8
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 5
- 229910052760 oxygen Inorganic materials 0.000 abstract description 5
- 239000001301 oxygen Substances 0.000 abstract description 5
- 239000001569 carbon dioxide Substances 0.000 abstract description 4
- 229910002092 carbon dioxide Inorganic materials 0.000 abstract description 4
- VUZPPFZMUPKLLV-UHFFFAOYSA-N methane;hydrate Chemical compound C.O VUZPPFZMUPKLLV-UHFFFAOYSA-N 0.000 abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 4
- 230000001590 oxidative effect Effects 0.000 abstract description 3
- 239000010970 precious metal Substances 0.000 abstract 1
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 18
- 239000000047 product Substances 0.000 description 17
- 239000011941 photocatalyst Substances 0.000 description 12
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 9
- YRKCREAYFQTBPV-UHFFFAOYSA-N acetylacetone Chemical compound CC(=O)CC(C)=O YRKCREAYFQTBPV-UHFFFAOYSA-N 0.000 description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 6
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 6
- 238000003421 catalytic decomposition reaction Methods 0.000 description 5
- 238000006757 chemical reactions by type Methods 0.000 description 5
- 238000007146 photocatalysis Methods 0.000 description 5
- 230000001699 photocatalysis Effects 0.000 description 5
- 229910010413 TiO 2 Inorganic materials 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 4
- 238000010525 oxidative degradation reaction Methods 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 231100000252 nontoxic Toxicity 0.000 description 3
- 230000003000 nontoxic effect Effects 0.000 description 3
- 238000001179 sorption measurement Methods 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 239000013067 intermediate product Substances 0.000 description 2
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000002957 persistent organic pollutant Substances 0.000 description 2
- 230000035943 smell Effects 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- 230000010718 Oxidation Activity Effects 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 239000003463 adsorbent Substances 0.000 description 1
- 239000002386 air freshener Substances 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 230000000844 anti-bacterial effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000002498 deadly effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 229910001882 dioxygen Inorganic materials 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 231100001261 hazardous Toxicity 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000002779 inactivation Effects 0.000 description 1
- 150000002484 inorganic compounds Chemical class 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 230000002906 microbiologic effect Effects 0.000 description 1
- 239000002808 molecular sieve Substances 0.000 description 1
- 229910000510 noble metal Inorganic materials 0.000 description 1
- 230000001473 noxious effect Effects 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 239000012264 purified product Substances 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 150000003254 radicals Chemical class 0.000 description 1
- 230000007420 reactivation Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
Landscapes
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
- Catalysts (AREA)
Abstract
The invention relates to a process which comprises following the steps: ozone with high oxidative activity is generated in processed air firstly, and then the air absorbs and collects gaseous pollutants in the air through catalytic oxidation catalyzer with high specific area, and utilizes the ozone to completely and thoroughly catalyze, oxidize and degrade the pollutants, so as to generate atoxic and harmless carbon dioxide, water and inorganic micro molecules, and finally the ozone remained in the processed air is purified and transferred into oxygen, and then the whole air purifying process is completed. The process has the advantages of suitability for different types of pollutants, no secondary pollution, no requirements for temperature and pressure during the whole process, atoxic and harmless catalyzer, no precious metal adopted and low cost. Furthermore, the process can be performed at the normal temperature and the normal pressure.
Description
Technical field
The present invention relates to airborne foul smell composition and other hazardous contaminant are carried out oxidative degradation to reach a kind of purifier of the purpose that purifies air.
Background technology
Existing indoor pollution control technology mainly adopts methods such as filtration, absorption, catalysis, photocatalysis and plasma.Common indoor environment purified product has the spraying type, covers six big classes such as shield type, direct reaction type, physical filtering type, catalytic oxidation type, low-temperature plasma type.
Early stage spraying type product mainly is that abnormal smells from the patients such as " air fresheners " hides material, and this method has increased new volatile organic contaminant on the contrary not from removing toxic gas in fact.Covering the shield type product characteristics is the release that has delayed volatile organic matters such as formaldehyde, benzene, does not fundamentally eliminate toxic organics.Direct reaction type series products is eliminated pollutant such as formaldehyde, benzene or ammonia by chemical reaction, but function singleness, reaction substrate is single, can not effectively remove indoor composite chemical and pollute, and product may produce bio-toxicity.A kind of direct reaction type method is arranged in addition, be exactly in the air of handling, to take place or adding ozone, this method obviously can be carried out oxidation to the pollutant of more kind especially organic pollution, but this oxidation generally is a partial oxidation, and can not control the ozone amount that produces or add, thereby also contain ozone in the air after processing according to the content of pollutant.And ozone is a kind of active free radical, and human body is had sizable harm.Studies show that ozone content is higher than 0..2mg/m in the air
3The time, the people known from experience cause actual harm (this also is can germ-resistant reason with ozone).This product is that part has been decomposed gaseous organic pollutant, has added bigger gaseous contaminant---the ozone of harm always.Physical filtering type product mainly is based on the adsorption of high-ratio surface material such as active carbon to noxious substance, is about to pollutant and transfers to solid phase from gas phase, relevant issues and unresolved such as the absorption that causes thus is saturated, adsorbent reactivation and secondary pollution.Catalytic oxidation type product utilizes the special UV-activated that is provided with in natural light or air purifier the inside to excite catalytic reaction, microbiological oxidations such as various volatile organic matters even antibacterial are become carbon dioxide and water, and itself does not consume.The normal photocatalyst that adopts is TiO
2, the key technical problem that needs at present to solve is how to utilize daylight to carry out photocatalysis, improves photocatalysis efficiency, and improves the technique for fixing of catalyst, can't contact light source and inactivation after avoiding catalyst to be covered by airborne dust.A kind of catalytic oxidation type device is arranged in addition, utilize material, such as KMnO with oxidability
4, MnO
2Deng, airborne gaseous contaminant is carried out catalytic oxidation, but this class catalyst is difficult at normal temperatures and pressures (because the air capacity of handling is general bigger, unactual to its heating pressurization) returned to high oxidation state by airborne molecular oxygen and form the catalytic oxidation circulation, in fact be a kind of direct reaction type device, and simple KMnO
4Also be difficult to the different pollutant of oxidation Deng oxidant.Low-temperature plasma type product directly decomposes gaseous organic pollutant with low-temperature plasma, but the plasma generator of this kind product needed complexity, and be not easy to form stable plasma discharge.The plasma that it is its generation that this product also has a deadly defect produces ozone in air, have and the same shortcoming of direct reaction type product that adds or take place ozone.
Especially need to prove photochemical catalytic oxidation type product, this product is hot topic research and an application product in the market.But this type product has a fatal shortcoming, be exactly photocatalysis oxidation reaction generally be one 1 order reaction, even be less than 1 grade, primary gaseous contaminant such as benzene or toluene, unlikely after through a beds, just become nontoxic carbon dioxide and water fully, always have intermediate product to discharge, along with the difference of pollutant kind, these intermediate products may be more harmful than original pollution.Such as Chinese patent CN1387916A, though combine photocatalysis and ozone oxidation, also the airborne ozone of handling has been carried out purified treatment,, it also has above-mentioned shortcoming undoubtedly.And, because photocatalyst TiO
2Specific surface area is little, and air mass flow is bigger, and is limited in one's ability to the adsorption and enrichment of the gaseous contaminant of ppm level content in the air, makes pollutant shorter in the catalyst surface time of staying, also is one of the reason that can't thoroughly degrade.
Existing domestic and international patent and other document generally all are the products that belongs to above-mentioned a certain type, or certain catalyst, as photocatalyst TiO
2Perhaps oxidation catalyst.Known to the applicant, almost the neither one document can provide that suitable substrate is wide, degraded thoroughly, itself do not bring the product of pollution.
Summary of the invention
In order to address the above problem, the present invention is by producing the ozone of high oxidation activity earlier in handling air, this air carries out airborne gaseous contaminant adsorption and enrichment and utilizes ozone that pollutant are carried out slap-up catalyzing oxidizing degrading by the catalyst for catalytic oxidation with high-specific surface area then, generate inorganic molecules such as nontoxic carbon dioxide and water, at last residual ozone in the handled air is purified, be translated into oxygen, finish the process of whole air cleaning.It is extensive that this process is suitable for pollutant kind, do not produce secondary pollution, and whole process does not require temperature, pressure, can carry out at normal temperatures and pressures, and all catalyst are all nontoxic, do not adopt noble metal, and price is low.
The invention of technical solution of the present invention 1 is a kind of air cleaner, and it has the fan of an air-supply, is installed in the ozone generating-device on the wind path successively, in handled air ozone to take place; Utilize ozone that ozone generating-device takes place that gaseous contaminant is carried out the catalyst of catalytic oxidation, remaining ozone is carried out the ozone purification device that catalytic decomposition purifies.Wherein, catalyst for catalytic oxidation is not a kind of photocatalyst, does not need light source.
The invention of technical solution of the present invention 2 is a kind of air cleaners, and it has the fan of an air-supply, is installed in the ozone generating-device on the wind path successively, in handled air ozone to take place; Utilize ozone that ozone generating-device takes place that gaseous contaminant is carried out the catalyst of catalytic oxidation, remaining ozone is carried out the ozone purification device that catalytic decomposition purifies.Wherein, catalyst for catalytic oxidation is not a kind of photocatalyst, does not need light source, and the specific surface area of this catalyst is greater than 10m
2/ g.
The invention of technical solution of the present invention 3 is a kind of air cleaners, and it has the fan of an air-supply, is installed in the ozone generating-device on the wind path successively, in handled air ozone to take place; Utilize ozone that ozone generating-device takes place that gaseous contaminant is carried out the catalyst of catalytic oxidation, remaining ozone is carried out the ozone purification device that catalytic decomposition purifies.Wherein, catalyst for catalytic oxidation is not a kind of photocatalyst, does not need light source, and the specific surface area of this catalyst is greater than 50m
2/ g.All catalytic reaction operations that comprise catalytic oxidation and ozone purification are carried out at normal temperatures and pressures.
The invention of technical solution of the present invention 4 is a kind of air cleaners, and it has the fan of an air-supply, is installed in the ozone generating-device on the wind path successively, in handled air ozone to take place; Utilize ozone that ozone generating-device takes place that gaseous contaminant is carried out the catalyst of catalytic oxidation, remaining ozone is carried out the ozone purification device that catalytic decomposition purifies.Wherein, catalyst for catalytic oxidation is not a kind of photocatalyst, does not need light source, and the specific surface area of this catalyst is greater than 150m
2/ g, this catalyst loads on activated carbon or Al by organic or inorganic compound or its mixture
2O
3Perhaps SiO
2Perhaps on the high-specific surface area carrier such as molecular sieve.All catalytic reaction operations that comprise catalytic oxidation and ozone purification are carried out at normal temperatures and pressures.
The invention of technical solution of the present invention 5 is a kind of air cleaners, and it has the fan of an air-supply, is installed in the ozone generating-device on the wind path successively, in handled air ozone to take place; Utilize ozone that ozone generating-device takes place that gaseous contaminant is carried out the catalyst of catalytic oxidation, remaining ozone is carried out the ozone purification device that catalytic decomposition purifies.Wherein, catalyst for catalytic oxidation is not a kind of photocatalyst, does not need light source, but can add photocatalyst in the front or the back of this catalyst wind path yet, to strengthen the degradation capability to gaseous contaminant in the wind path.All catalytic reaction operations that comprise catalytic oxidation and ozone purification are carried out at normal temperatures and pressures.
Description of drawings
Figure 1 shows that the air cleaner among the embodiment 1,2,3,4,5
Figure 2 shows that the air cleaner among the embodiment 5
The specific embodiment
According to Fig. 1 the air purifier 10 of the embodiment of the invention 1 is described below.
This air cleaner has wind path 1, and wherein air is mobile according to 5 direction.Positive pole 2 in the wind path, negative pole 3 and the power supply 4 common ozone generating-devices of forming utilize ozone that the catalyst 7 of airborne gaseous contaminant purifying and catalyzing oxidative degradation is contained in the wind path.Air by catalyst 7 after again by ozone purification catalyst 8 wherein remaining ozone remove such as resolving into oxygen.
To the explanation of catalyst 7, the catalytic reaction of catalyst 7 is carried out at normal temperatures and pressures, because it is not a photocatalyst, does not need ultraviolet light.
The effect of embodiment 1: will contain formaldehyde 3mg/m
3Air by this air purifier, the flow velocity of air makes that its air speed to catalyst 7 is 100000h
-1Regulate ozonizer power supply 4, make that ozone content is about 0.1% in the air of catalyst 7 fronts, treated air detected by " the mensuration acetylacetone,2,4-pentanedione spectrophotography of GB/T 15516-1995 air quality formaldehyde " that the concentration of formaldehyde is 0.012mg/m
3Do not detect ozone.
According to Fig. 1 the air purifier 10 of the embodiment of the invention 2,3 and 4 is described below.
This air cleaner has wind path 1, and wherein air is mobile according to 5 direction.Positive pole 2 in the wind path, negative pole 3 and the power supply 4 common ozone generating-devices of forming utilize ozone that the catalyst 7 of airborne gaseous contaminant purifying and catalyzing oxidative degradation is contained in the wind path.Air by catalyst 7 after again by ozone purification catalyst 8 wherein remaining ozone remove such as resolving into oxygen.
To the explanation of catalyst 7, the catalytic reaction of catalyst 7 is carried out at normal temperatures and pressures, because it is not a photocatalyst, does not need ultraviolet light.The specific surface area of wherein implementing 2,3 and 4 catalyst 7 is respectively 15,77 and 198m
2/ g.
Embodiment 2,3 and 4 effect: will contain formaldehyde 3mg/m
3Air by this air purifier, the flow velocity of air makes that its air speed to catalyst 7 is 100000h
-1, regulate ozonizer power supply 4, make that ozone content is about 0.1% in the air of catalyst 7 fronts.After turning round 10 hours, treated air is detected by " the mensuration acetylacetone,2,4-pentanedione spectrophotography of GB/T 15516-1995 air quality formaldehyde ", the concentration of embodiment 2,3 and 4 formaldehyde is respectively 0.011mg/m
3, 0.003mg/m
3, do not detect.
According to Fig. 2 the air purifier 10 of the embodiment of the invention 5 is described below.
This air cleaner has wind path 1, and wherein air is mobile according to 5 direction.Positive pole 2 in the wind path, negative pole 3 and the power supply 4 common ozone generating-devices of forming utilize ozone that the catalyst 7 of airborne gaseous contaminant purifying and catalyzing oxidative degradation is contained in the wind path.Air by catalyst 7 after again by ozone purification catalyst 8 wherein remaining ozone remove such as resolving into oxygen.6 is a plated film TiO
2Quartz glass, the other one side of this glass is shone with the ultraviolet light of 254nm wavelength.
To the explanation of catalyst 7, the catalytic reaction of catalyst 7 is carried out at normal temperatures and pressures, because it is not a photocatalyst, does not need ultraviolet light, and its specific surface area is 198m2/g.
The effect of embodiment 7: will contain toluene 5mg/m
3Air by this air purifier, the flow velocity of air makes that its air speed to catalyst 7 is 100000h
-1, regulate ozonizer power supply 4, make that ozone content is about 0.1% in the air of catalyst 7 fronts.After turning round 10 hours, treated air is pressed " discharging of DIN EN 12619-1999 stationary source. measure the mass concentration of the whole gaseous state organic carbons of low concentration in the waste gas. use continuity method (the Stationary sourceemissions-Determination of the mass concentration organic carbon at low concentrations in fluegases-Continuous flame method of flame ionization detector; German version EN 12619:1999) " airborne organic carbon is detected, do not detect organic carbon.Do not detect ozone.
Claims (7)
1. air cleaner is characterized in that: ozonator is housed at air in by the path successively, utilizes ozone but catalyst, the ozone of unfavorable oxidation gaseous contaminant with light source are removed catalyst.
2. air cleaner according to claim 1 is characterized in that: ozonator is housed successively ozone to take place, do not need light source but utilize catalyst, ozone removal catalyst that institute handled gaseous contaminant in the catalytic ozonation air that takes place through ozonator in the air with remaining ozone purification removal in handled air in by the path at air in handled air.
3. air cleaner according to claim 2 is characterized in that: utilize the catalyst of catalytic ozonation gaseous contaminant to have greater than 10m
2The specific surface area of/g.
4. air cleaner according to claim 3 is characterized in that: utilize the catalyst of catalytic ozonation gaseous contaminant to have more than or equal to 50m
2The specific surface area of/g.
5. air cleaner according to claim 4 is characterized in that: utilize the catalyst of catalytic ozonation gaseous contaminant to have more than or equal to 150m
2The specific surface area of/g.
6. according to any one claim in the claim 1～5, it is characterized in that: do not need light source but the catalyst that utilizes institute to handle gaseous contaminant in the catalytic ozonation air that passes through the ozonator generation in the air carries out catalytic reaction at normal temperatures and pressures.
7. air cleaner according to claim 1 is characterized in that: ozonator is housed successively ozone to take place, do not need light source but utilize catalyst, ozone removal catalyst that institute handled gaseous contaminant in the catalytic ozonation air that takes place through ozonator in the air with remaining ozone purification removal in handled air in by the path at air in handled air; The catalyst that needs light source but utilize institute to handle gaseous contaminant in the catalytic ozonation air that passes through the ozonator generation in the air has specific surface area more than or equal to 150m
2/ g; Catalytic reactions all in the device are carried out at normal temperatures and pressures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100491018A CN101306205A (en) | 2007-05-14 | 2007-05-14 | Active composite catalyst air cleaning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100491018A CN101306205A (en) | 2007-05-14 | 2007-05-14 | Active composite catalyst air cleaning system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101306205A true CN101306205A (en) | 2008-11-19 |
Family
ID=40123037
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007100491018A Pending CN101306205A (en) | 2007-05-14 | 2007-05-14 | Active composite catalyst air cleaning system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101306205A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107441543A (en) * | 2017-09-29 | 2017-12-08 | 深圳欧威奇科技有限公司 | Air purifying and sterilizing machine |
| CN107469121A (en) * | 2017-09-29 | 2017-12-15 | 深圳欧威奇科技有限公司 | A kind of air purifying and sterilizing machine |
| CN112683636A (en) * | 2020-12-11 | 2021-04-20 | 南京大学 | Method for rapidly removing carbon in-situ transmission electron microscope sample preparation |
-
2007
- 2007-05-14 CN CNA2007100491018A patent/CN101306205A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107441543A (en) * | 2017-09-29 | 2017-12-08 | 深圳欧威奇科技有限公司 | Air purifying and sterilizing machine |
| CN107469121A (en) * | 2017-09-29 | 2017-12-15 | 深圳欧威奇科技有限公司 | A kind of air purifying and sterilizing machine |
| CN112683636A (en) * | 2020-12-11 | 2021-04-20 | 南京大学 | Method for rapidly removing carbon in-situ transmission electron microscope sample preparation |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103638761B (en) | A kind of method of low temperature plasma coupling and catalyzing oxidation removal foul gas and device thereof | |
| KR100470747B1 (en) | Method and apparatus for eliminating the stench and volatile organic compounds in the polluted air | |
| Li et al. | Experimental study on ozone photolytic and photocatalytic degradation of H2S using continuous flow mode | |
| CN104857824A (en) | Waste gas processing method and device collaborating vacuum ultraviolet light catalysis and ozone catalytic oxidation | |
| CN104906951A (en) | Method and device for removing volatile organic compounds by photo-production ozone catalytic oxidation | |
| CN107349767A (en) | Organic waste gas treatment device | |
| CN207628198U (en) | Organic waste gas treatment device | |
| KR20100118643A (en) | Gas furifying system | |
| KR100842100B1 (en) | Treatment Method Of Volatie Organic Compounds And Malodor By Hybrid System Of Ozone/Ultraviolet/Catalyst | |
| CN203899429U (en) | Catalytic low-temperature plasma device for processing malodorous gas | |
| CN106669414A (en) | Waste gas treatment equipment | |
| CN109414647B (en) | Method for low-temperature gas cleaning and catalyst used for method | |
| CN201399313Y (en) | Indoor air purifying device | |
| CN202113707U (en) | Air purifier | |
| CN206082107U (en) | Industry organic waste gas purification device | |
| CN103691270A (en) | Waste gas UV (Ultraviolet) photolysis oxidation device | |
| CN101306205A (en) | Active composite catalyst air cleaning system | |
| CN110292854B (en) | Device and method for catalytic degradation of VOCs (volatile organic compounds) by pulse plasma coupling double fluidized beds | |
| US6632659B1 (en) | Apparatus and method for UV oxidation and microbiological decomposition of organic waste air | |
| JP3382857B2 (en) | Method and apparatus for treating harmful substance-containing gas | |
| KR20160030679A (en) | Air furification apparatus using hydroxyl radical | |
| CN205549995U (en) | Compound light oxygen catalytic activity carbon organic waste gas purifying equipment | |
| JP2005296859A (en) | Harmful substance decomposition method and harmful substance decomposition apparatus | |
| RU2742273C1 (en) | Method and device for cleaning air of harmful and odorous substances, uv-lamp and unit of sorption-catalytic backfill for implementation thereof | |
| KR20010097924A (en) | Air cleaner by using catalyst |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20081119 |