WO2005099778A1 - Method for decomposing harmful substance and apparatus for decomposing harmful substance - Google Patents
Method for decomposing harmful substance and apparatus for decomposing harmful substance Download PDFInfo
- Publication number
- WO2005099778A1 WO2005099778A1 PCT/JP2005/006159 JP2005006159W WO2005099778A1 WO 2005099778 A1 WO2005099778 A1 WO 2005099778A1 JP 2005006159 W JP2005006159 W JP 2005006159W WO 2005099778 A1 WO2005099778 A1 WO 2005099778A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- photocatalyst
- light
- decomposing
- harmful substance
- gas
- Prior art date
Links
- 239000000126 substance Substances 0.000 title claims abstract description 57
- 238000000034 method Methods 0.000 title claims abstract description 18
- 239000011941 photocatalyst Substances 0.000 claims abstract description 84
- 239000000919 ceramic Substances 0.000 claims abstract description 33
- 230000001678 irradiating effect Effects 0.000 claims abstract description 5
- 238000000354 decomposition reaction Methods 0.000 claims description 11
- 239000003054 catalyst Substances 0.000 claims 1
- 238000013032 photocatalytic reaction Methods 0.000 abstract description 9
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 abstract description 5
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 abstract description 5
- 230000001939 inductive effect Effects 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 45
- 230000001877 deodorizing effect Effects 0.000 description 26
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 8
- 239000003463 adsorbent Substances 0.000 description 7
- 230000001699 photocatalysis Effects 0.000 description 6
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 229910021536 Zeolite Inorganic materials 0.000 description 3
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000000746 purification Methods 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 239000010457 zeolite Substances 0.000 description 3
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- 238000004887 air purification Methods 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- JRPBQTZRNDNNOP-UHFFFAOYSA-N barium titanate Chemical compound [Ba+2].[Ba+2].[O-][Ti]([O-])([O-])[O-] JRPBQTZRNDNNOP-UHFFFAOYSA-N 0.000 description 1
- 229910002113 barium titanate Inorganic materials 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000004332 deodorization Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 239000003205 fragrance Substances 0.000 description 1
- 239000002440 industrial waste Substances 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 239000002346 layers by function Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 238000009790 rate-determining step (RDS) Methods 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- VEALVRVVWBQVSL-UHFFFAOYSA-N strontium titanate Chemical compound [Sr+2].[O-][Ti]([O-])=O VEALVRVVWBQVSL-UHFFFAOYSA-N 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 230000002459 sustained effect Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L9/00—Disinfection, sterilisation or deodorisation of air
- A61L9/16—Disinfection, sterilisation or deodorisation of air using physical phenomena
- A61L9/18—Radiation
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L9/00—Disinfection, sterilisation or deodorisation of air
- A61L9/16—Disinfection, sterilisation or deodorisation of air using physical phenomena
- A61L9/18—Radiation
- A61L9/20—Ultraviolet radiation
- A61L9/205—Ultraviolet radiation using a photocatalyst or photosensitiser
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L9/00—Disinfection, sterilisation or deodorisation of air
- A61L9/01—Deodorant compositions
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L9/00—Disinfection, sterilisation or deodorisation of air
- A61L9/16—Disinfection, sterilisation or deodorisation of air using physical phenomena
- A61L9/18—Radiation
- A61L9/20—Ultraviolet radiation
-
- 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
-
- 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
- B01D53/88—Handling or mounting catalysts
- B01D53/885—Devices in general for catalytic purification of waste gases
-
- 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
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/30—Catalysts, in general, characterised by their form or physical properties characterised by their physical properties
- B01J35/39—Photocatalytic properties
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/80—Type of catalytic reaction
- B01D2255/802—Photocatalytic
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/90—Odorous compounds not provided for in groups B01D2257/00 - B01D2257/708
-
- 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
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/50—Catalysts, in general, characterised by their form or physical properties characterised by their shape or configuration
- B01J35/58—Fabrics or filaments
- B01J35/59—Membranes
Definitions
- the present invention relates to a technology for collecting harmful gases such as odor and making them harmless, and more particularly to one using a photocatalyst.
- a photocatalyst represented by titanium oxide or the like When a photocatalyst represented by titanium oxide or the like is irradiated with light having energy equal to or higher than the band gap of the photocatalyst, holes and electrons are generated inside the photocatalyst. The holes and electrons thus generated are diffused to the surface of the photocatalyst, and react with the substance adsorbed on the surface of the photocatalyst and the substance present in the vicinity of the surface of the photocatalyst. Many air purifiers and the like that utilize the properties of such photocatalysts have been commercialized, and many patent applications have been made.
- titanium oxide photocatalyst is most frequently used because of its excellent oxidizing power and chemical stability. With this titanium oxide photocatalyst, the above-mentioned photocatalytic reaction proceeds by absorbing light having a wavelength of about 400 or less.
- FIG. 3 is a plan view of an air purifier using both ozone and a photocatalyst.
- this air purifier includes a filter portion 31, an ozone generation portion 32, a photocatalytic device 33, and an activated carbon portion 34 in this order from the upstream to the downstream of the flow path of the air to be treated.
- the photocatalytic device 33 includes a case member for forming a flow path of air, a photocatalytic filter having a photocatalytic functional layer supported on a substrate having a large number of pores provided inside the case member, and a photocatalytic filter Means for irradiating ultraviolet light. Then, the photocatalyst filter is disposed such that the total amount of air to be processed flows through the photocatalyst filter.
- FIG. 4 is a longitudinal cross-sectional view of an air purification apparatus provided with a deodorizing filter in which an adsorbent containing at least one of activated carbon and zeolite and a photocatalyst are used in combination.
- the air purification device has a cylindrical deodorizing filter 41 including a photocatalyst, and an excitation light source 42 is disposed on the upstream side of the deodorizing filter 41 in proximity to the deodorizing filter 41 and the deodorizing filter 41 is excited. It is configured to rotate so that the irradiation position of the light from the light source 42 changes.
- the gas adsorbed to the whole of the deodorizing filter 41 can be treated and decomposed. Therefore, the regeneration rate of the deodorizing filter 41 can be improved, and the initial excellent performance can be sustained for a long time (for example, see Patent Document 2).
- Patent Document 1 Japanese Patent Application Laid-Open No. 2002-272824
- Patent Document 2 Japanese Patent Application Laid-Open No. 2002-263175
- the photocatalytic reaction proceeds only on the surface of the photocatalyst and in the vicinity of the surface of the photocatalyst. For this reason, in the case of decomposing and purifying harmful gases at extremely dilute concentrations of ppm or ppb level by photocatalyst, the process of diffusing the harmful gas on the photocatalyst surface tends to be the rate-limiting step of the decomposition and purification reaction. In particular, there is a problem that the decomposition and cleaning rate is significantly slowed when the harmful gas having a low adsorptivity to the photocatalyst is used as the target of decomposition and purification.
- Patent Document 1 discloses the combined use with ozone, but the improvement of the cleaning rate by the combined use with ozone is not necessarily clarified.
- Patent Document 2 describes the combined use of a photocatalyst and an adsorbent containing at least one of activated carbon and zeolite, the use of such an adsorbent is also possible. Since the harmful substances can not be adsorbed after the adsorbent reaches adsorption saturation, the purification action becomes low, and the adsorbent needs to be replaced. The used adsorbents become general waste and industrial waste, and there was a problem in terms of waste increase.
- An object of the present invention is to provide a technology for decomposing harmful substances with high efficiency for decomposing and removing harmful substances, or a technology for decomposing harmful substances that requires only a small amount of waste, which solves the above problems.
- the concentration of odorants generated in living space is on the order of ppb to several ppm, and in the case of decomposing such a lean concentration gas, the decomposition rate of the gas is proportional to the gas concentration It is known to grow. Also, in relation to the light intensity and the decomposition rate, the power of a cold cathode lamp for black light and photocatalyst is usually several mWZ cm 2 order light emitted In the case of the intensity, the higher the light intensity, the higher the decomposition rate. From these facts, it is concluded that the higher the light intensity and gas concentration, the higher the decomposition rate, and the stronger the effect of removing harmful substances such as deodorizing effect.
- a decomposing device for harmful substances such as deodorizing devices composed of a member that carries a photocatalyst such as a ceramic filter coated with a photocatalyst and a light source
- a gas containing harmful substances such as odor gas
- the gas containing harmful substances has the highest gas concentration and the light intensity is high. Since the highest degree of contact is achieved by passing through the surface of a member carrying a photocatalyst such as a ceramic filter, the reaction efficiency can be increased.
- the light source between members supporting photocatalysts such as two ceramic filters, light is reflected by the member supporting photocatalysts such as one ceramic filter and light is reflected on the other side such as ceramic filters etc. Since the light is incident on the member carrying the photocatalyst, it can be used to advance the photocatalytic reaction on the photocatalyst coated on the surface, and it becomes possible to increase the utilization efficiency of light.
- the surfaces of members carrying a photocatalyst are arranged such that the light irradiated to the surfaces is reflected to the other surfaces, and a light source disposed in a region surrounded by these surfaces is used.
- the light irradiated to the surface of the member carrying the photocatalyst contributes to the photocatalytic reaction or reflects the other photocatalyst even if it is reflected by the method of decomposing the harmful substance by irradiating the photocatalyst with light and decomposing the harmful substance by the photocatalyst. Since the light is irradiated to the surface of the carried member, the utilization efficiency of light energy can be improved.
- the surfaces of members carrying a photocatalyst are arranged opposite to each other, and the photocatalyst is irradiated with light from a light source disposed between these surfaces to decompose harmful substances by the photocatalyst.
- the light irradiated to the surface of the member carrying the photocatalyst contributes to the photocatalytic reaction, or even if it is reflected, the light is irradiated to the surface of the member carrying the other photocatalyst. Energy efficiency can be improved.
- a light source is installed inside a tubular member carrying a photocatalyst, and the photocatalyst is supported by a method of decomposing harmful substances by irradiating the photocatalyst with the light source to decompose the harmful substance by the photocatalyst.
- the light irradiated to the surface of the member which has been used contributes to the photocatalytic reaction, or even if it is reflected, it is irradiated to the surface of the member carrying another photocatalyst, thereby improving the utilization efficiency of the light energy.
- harmful substances are filtered or formed by a method of decomposing a harmful substance, which is a member carrying the photocatalyst, a tubular member, a filter-like member, or a member capable of passing porous or other gases. It can be decomposed and removed as it passes through members that can pass other gases.
- a porous material when a porous material is used, the surface area of the member is increased, so the amount of photocatalyst present is also increased, and the decomposition and removal efficiency of harmful substances is increased.
- a harmful substance can pass, it is applicable.
- the gas carrying the photocatalyst is carried so that the gas containing the harmful substance first passes through the member carrying the photocatalyst, or the surface of the cylindrical member having the highest light irradiation intensity.
- the harmful substance can be efficiently removed by decomposing the harmful substance introduced into the rod-like member.
- the member carrying the photocatalyst, or the tubular member made of ceramic can be recovered performance by washing the member carrying the photocatalyst or the tubular member with water by the method of decomposing the harmful substance. The amount is small.
- the harmful substance decomposing apparatus has a flow decomposing substance of the harmful substance decomposing apparatus in which a straightening vane is installed in the gas flow path in the harmful substance decomposing apparatus, the flow resistance of the gas becomes large and the gas flow rate is small
- the gas can be circulated throughout the member supporting the photocatalyst, the contact efficiency between the harmful substance and the photocatalyst becomes high, and the decomposition and removal effect of the harmful substance can be improved.
- FIG. 1 is a block diagram of a deodorizing apparatus.
- FIG. 2 is a block diagram of a deodorizing apparatus.
- FIG. 3 is a plan view of an air purifier using ozone and a photocatalyst in combination.
- FIG. 4 is a longitudinal sectional view of an air purifier using an adsorbent containing at least one of activated carbon and zeolite in combination with a photocatalyst.
- FIG. 1 The block diagram of the deodorizing apparatus used for FIG. 1 at 1st Embodiment is shown.
- FIG. 1 (a) is a cross-sectional view of the deodorizing apparatus, and (b) is a side view of the deodorizing apparatus.
- This deodorizing apparatus combines a photocatalyst-coated ceramic filter with a light source for exciting the photocatalytic reaction so that a light source can be effectively used.
- a light source is interposed between two ceramic filters. Deploy. Furthermore, the gas is introduced between the two ceramic filters so that the gas containing the odorous gas first passes through the surface of the ceramic filter where the light irradiation intensity is highest, and the force also passes through the ceramic filter.
- the deodorizing device includes an air inlet 1 for introducing a gas installed at the lower part of the deodorizing device, a fan 2 for driving a gas introduced at an upper portion of the air outlet 1, and a deodorizing device.
- gas is introduced from the air inlet 1 and reaches the central portion of the deodorizing device in which the lamp 3 as a light source is installed. Then, it passes ceramic filters 4, 5 arranged on both sides of the lamp 3. At the time of this passage, the light-irradiated photocatalyst on the surface of the ceramic filters 4 and 5 comes in contact with the gas, whereby the odor component gas in the gas is decomposed.
- the gas from which the odor component gas has been decomposed and removed by passing through the ceramic filters 4 and 5 is the side chamber 6 or 7 To the side rooms 8, 9 and exhaust from the exhaust ports 10, 11.
- the gas with the highest concentration of the odor component gas is irradiated with the strongest light of the ceramic filters 4 and 5. It is possible to break down harmful substances efficiently by passing through the In addition, by arranging a light source between two ceramic filters, light emitted to one of the ceramic filters is reflected to the other ceramic filter, thereby improving the utilization efficiency of light energy. be able to.
- the lamps 3 serving as the light source may be provided in a single piece instead of a plurality of vertically arranged filters as long as the ceramic filters 4 and 5 can be uniformly irradiated.
- titanium oxide is most preferable as the photocatalyst applied to the ceramic filter, but zinc oxide, strontium titanate, barium titanate, or a composite compound obtained by combining these photocatalysts, etc. is suitable. And those having a photocatalytic function can be used.
- the number of ceramic filters is not limited to two, and any number of ceramic filters may be installed as long as the irradiated light is reflected by the other ceramic filters.
- the lamp 3 of the light source may be installed inside a cylindrical ceramic filter such as a cylindrical shape.
- FIG. 1 The block diagram of the deodorizing apparatus used for 2nd Embodiment is shown in FIG. In FIG. 1, (a) is a cross-sectional view of the deodorizing apparatus, and (b) is a side view of the deodorizing apparatus.
- This deodorizing apparatus is the deodorizing apparatus of the first embodiment, in which a plurality of baffles 12 are attached to the side chambers 6, 7 so as to be perpendicular to the gas moving upward.
- the flow resistance of the gas is increased, and the gas can uniformly flow in the side chambers 6 and 7 even when the gas flow rate is small. This action makes it possible to circulate the gas throughout the ceramic filters 4 and 5, and the contact efficiency between the odor component gas and the photocatalyst becomes high, and the deodorizing effect can be improved.
- the rectifying plate 12 may not be perpendicular to the gas moving upward as long as the above effect can be obtained, and one plate may be provided in each of the side chambers 6 and 7. One by one.
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- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Animal Behavior & Ethology (AREA)
- Environmental & Geological Engineering (AREA)
- Veterinary Medicine (AREA)
- Public Health (AREA)
- General Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Epidemiology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- General Chemical & Material Sciences (AREA)
- Biomedical Technology (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
- Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
- Catalysts (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN200580011122XA CN1960769B (en) | 2004-04-14 | 2005-03-30 | Method for decomposing harmful substance and apparatus for decomposing harmful substance |
KR1020087020329A KR100930837B1 (en) | 2004-04-14 | 2005-03-30 | Method for decomposing harmful substance |
HK07106073.0A HK1101361A1 (en) | 2004-04-14 | 2007-06-07 | Method for decomposing harmful substance and apparatus for decomposing harmful substance |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004-118499 | 2004-04-14 | ||
JP2004118499A JP2005296859A (en) | 2004-04-14 | 2004-04-14 | Harmful substance decomposition method and harmful substance decomposition apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005099778A1 true WO2005099778A1 (en) | 2005-10-27 |
Family
ID=35149787
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2005/006159 WO2005099778A1 (en) | 2004-04-14 | 2005-03-30 | Method for decomposing harmful substance and apparatus for decomposing harmful substance |
Country Status (6)
Country | Link |
---|---|
JP (1) | JP2005296859A (en) |
KR (3) | KR20090012284A (en) |
CN (1) | CN1960769B (en) |
HK (1) | HK1101361A1 (en) |
TW (1) | TW200539900A (en) |
WO (1) | WO2005099778A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3488155A4 (en) * | 2016-10-19 | 2019-12-11 | Samsung Electronics Co., Ltd. | PHOTOCATALYST FILTER AND AIR CONDITIONER COMPRISING THE SAME |
US10722605B2 (en) | 2016-10-19 | 2020-07-28 | Samsung Electronics Co., Ltd. | Photocatalyst filter and air conditioner including the same |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2942965A1 (en) * | 2009-03-16 | 2010-09-17 | Biowind | Air treatment device for purification of air, has catalyst arranged on secondary creation unit, where secondary creation unit distinct from primary creation unit is traversed by air flow |
JP6052966B2 (en) * | 2012-08-31 | 2016-12-27 | 株式会社ニッキ | Gas filter device |
KR101667235B1 (en) * | 2016-04-25 | 2016-10-18 | (주)유성엔비텍 | Offensive odor treatment apparatus |
KR101705837B1 (en) * | 2016-10-20 | 2017-02-10 | 주식회사 포시 | An Air Purification Filter To Have The Sterilizing And Cleaning |
KR20180124569A (en) * | 2017-05-12 | 2018-11-21 | 서울바이오시스 주식회사 | Fluid treatment device |
CN108889120A (en) * | 2018-07-24 | 2018-11-27 | 深圳市必发达科技有限公司 | Photocatalysis air purifying device |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH1015351A (en) * | 1996-07-05 | 1998-01-20 | Takasago Thermal Eng Co Ltd | Catalyst medium for air cleaning and air cleaner |
JP2000210570A (en) * | 1999-01-26 | 2000-08-02 | Hitachi Ltd | Photocatalytic apparatus |
JP2003245660A (en) * | 2002-02-26 | 2003-09-02 | Meidensha Corp | Water treatment vessel |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR0153511B1 (en) * | 1995-12-29 | 1998-10-15 | 김태구 | Connection structure of rocker panel for automobile |
CN2339914Y (en) * | 1997-11-28 | 1999-09-22 | 中国科学院光电技术研究所 | Air purifying device |
CN2361283Y (en) * | 1998-09-23 | 2000-02-02 | 中国建筑材料科学研究院 | Photocatalysis sterilizing and deodorant air purifying assembly |
-
2004
- 2004-04-14 JP JP2004118499A patent/JP2005296859A/en active Pending
-
2005
- 2005-03-30 KR KR1020097001226A patent/KR20090012284A/en not_active Application Discontinuation
- 2005-03-30 KR KR1020087020329A patent/KR100930837B1/en not_active IP Right Cessation
- 2005-03-30 WO PCT/JP2005/006159 patent/WO2005099778A1/en active Application Filing
- 2005-03-30 CN CN200580011122XA patent/CN1960769B/en not_active Expired - Fee Related
- 2005-03-30 KR KR1020067021319A patent/KR20060135884A/en active Application Filing
- 2005-04-13 TW TW094111597A patent/TW200539900A/en unknown
-
2007
- 2007-06-07 HK HK07106073.0A patent/HK1101361A1/en not_active IP Right Cessation
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH1015351A (en) * | 1996-07-05 | 1998-01-20 | Takasago Thermal Eng Co Ltd | Catalyst medium for air cleaning and air cleaner |
JP2000210570A (en) * | 1999-01-26 | 2000-08-02 | Hitachi Ltd | Photocatalytic apparatus |
JP2003245660A (en) * | 2002-02-26 | 2003-09-02 | Meidensha Corp | Water treatment vessel |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3488155A4 (en) * | 2016-10-19 | 2019-12-11 | Samsung Electronics Co., Ltd. | PHOTOCATALYST FILTER AND AIR CONDITIONER COMPRISING THE SAME |
US10722605B2 (en) | 2016-10-19 | 2020-07-28 | Samsung Electronics Co., Ltd. | Photocatalyst filter and air conditioner including the same |
US11701446B2 (en) | 2016-10-19 | 2023-07-18 | Samsung Electronics Co., Ltd. | Photocatalyst filter and air conditioner including the same |
Also Published As
Publication number | Publication date |
---|---|
KR20080080241A (en) | 2008-09-02 |
HK1101361A1 (en) | 2007-10-18 |
CN1960769A (en) | 2007-05-09 |
KR20060135884A (en) | 2006-12-29 |
CN1960769B (en) | 2010-05-12 |
JP2005296859A (en) | 2005-10-27 |
KR20090012284A (en) | 2009-02-02 |
KR100930837B1 (en) | 2009-12-10 |
TW200539900A (en) | 2005-12-16 |
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