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WO2001062307A1 - Appareil pour l'elimination d'une substance chimique - Google Patents

Appareil pour l'elimination d'une substance chimique Download PDF

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Publication number
WO2001062307A1
WO2001062307A1 PCT/JP2001/001177 JP0101177W WO0162307A1 WO 2001062307 A1 WO2001062307 A1 WO 2001062307A1 JP 0101177 W JP0101177 W JP 0101177W WO 0162307 A1 WO0162307 A1 WO 0162307A1
Authority
WO
WIPO (PCT)
Prior art keywords
adsorbent
photocatalyst
chemical substance
activated carbon
chemical
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.)
Ceased
Application number
PCT/JP2001/001177
Other languages
English (en)
Japanese (ja)
Inventor
Shinichi Hara
Naoto Hayashi
Satoshi Tagawa
Kazuhiko Sakamoto
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Valeo Thermal Systems Japan Corp
Original Assignee
Zexel Valeo Climate Control Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Zexel Valeo Climate Control Corp filed Critical Zexel Valeo Climate Control Corp
Publication of WO2001062307A1 publication Critical patent/WO2001062307A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • B01D53/02—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 adsorption, e.g. preparative gas chromatography
    • 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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
    • B01D2253/10—Inorganic adsorbents
    • B01D2253/102—Carbon
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
    • B01D2253/25—Coated, impregnated or composite adsorbents
    • 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
    • B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
    • B01D2257/702—Hydrocarbons
    • B01D2257/7022—Aliphatic hydrocarbons
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
    • B01D2257/702—Hydrocarbons
    • B01D2257/7027—Aromatic hydrocarbons
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
    • B01D2257/704—Solvents not covered by groups B01D2257/702 - B01D2257/7027
    • 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
    • B01D—SEPARATION
    • B01D2259/00—Type of treatment
    • B01D2259/45—Gas separation or purification devices adapted for specific applications
    • B01D2259/4566—Gas separation or purification devices adapted for specific applications for use in transportation means

Definitions

  • the present invention relates to a chemical substance removing device used as a vehicle deodorizing device or the like.
  • deodorizers have been installed in the passages of air conditioning systems.
  • deodorizers There are two types of deodorizers: those that adsorb odorous substances (chemical substances) using an adsorbent such as activated carbon, and those that decompose odorous substances using a photocatalyst.
  • the adsorption type deodorizer the adsorption capacity of the adsorbent diminishes with time, so the life was short and the user had to replace it.
  • a deodorizer using a photocatalyst has a semipermanent decomposition capability and is maintenance-free, but its decomposition speed by the photocatalyst is extremely slow, making it difficult to decompose odorous substances that have entered the cabin in a short time. there were.
  • a deodorizer has been developed in which an adsorbent and a photocatalyst are mixed and supported on a filter or the like.
  • this deodorizing device most of the odorous substances are once adsorbed on an adsorbent, and the adsorbed odorous substances are decomposed by a photocatalyst over time.
  • the odor substance is adsorbed by the adsorbent, so that the odor substance can be deodorized in a short time, and the adsorbed odor substance is decomposed by the photocatalyst. Maintenance can be minimized.
  • a first adsorbent for adsorbing a chemical substance to be removed contained in air, a photocatalyst for decomposing the chemical substance, and a supporting means for supporting the first adsorbent and the photocatalyst are provided.
  • the supporting means also carries a second adsorbent having a higher adsorbing ability for a by-product generated by the decomposition of the chemical substance than the first adsorbent.
  • the chemical substance to be removed is adsorbed by the first adsorbent and decomposed by the photocatalyst, and the by-product is also adsorbed by the second adsorbent and decomposed by the photocatalyst. Not only by-products but also by-products can be removed well.
  • an air passage is further provided, and in the air passage, the carrying means is arranged, and a blowing means is arranged.
  • the support means is formed of a single support, and the support carries the first and second adsorbents and a photocatalyst. According to this aspect, chemical substances and by-products can be removed with a simple configuration.
  • the support means includes first and second support members arranged in order from upstream to downstream of the air passage, and the first support body includes the first adsorbent. And a photocatalyst, and the second support carries the second adsorbent and the photocatalyst. According to this aspect, chemical substances and by-products can be more efficiently removed.
  • the support means includes first and second support members arranged in order from the upstream to the downstream of the air passage, and the first and second support members are respectively provided on the support members.
  • adsorbent and a photocatalyst are carried, the first carrier carries more of the first adsorbent than the second adsorbent, and the second carrier carries more of the second adsorbent than the first adsorbent.
  • chemical substances and by-products can be more efficiently removed.
  • a method for exciting a photocatalyst between the first and second supports A light source is installed. According to this aspect, the light source can be shared for the photocatalysts of the two carriers, and the configuration can be simplified.
  • the first adsorbent is untreated activated carbon having a high adsorption efficiency for an organic compound as a chemical substance to be removed, and the second adsorbent is for an aldehyde as a by-product.
  • Activated carbon impregnated with high adsorption efficiency According to this aspect, the organic compound and its by-product can be removed using inexpensive activated carbon.
  • FIG. 1 is a schematic cross-sectional view showing a vehicle air conditioner incorporating a deodorizing device according to a first embodiment of the present invention.
  • FIG. 2 is an enlarged sectional view of a main part of a deodorizing unit filter in the deodorizing apparatus.
  • FIG. 3 is a cross-sectional view showing a further enlarged part m in FIG.
  • FIG. 4 is a schematic sectional view showing a deodorizing unit according to the second embodiment of the present invention.
  • FIG. 5 is an enlarged sectional view of a main part of the filter of the deodorizing unit.
  • FIGS. Figure 1 shows a vehicle air conditioner.
  • the air conditioner includes a duct 1, an outside air switching door 2 arranged in order from an upstream end to a downstream in an air passage 1a in the duct 1, a blower 3 (blowing means), and a deodorizing unit 1.
  • the temperature control means 4 includes an evaporator 5 for cooling the passing air, a heater core 6 for ripening the passing air, and an air mixing door 7.
  • the downstream end of the air passage 1a is connected to the passenger compartment through the outlet.
  • the air passage la, the blower 3 and the deodorizing unit 10 constitute a deodorizing device (chemical substance removing device) of the present invention.
  • the deodorizing unit 10 is composed of a frame 11 and a filter 12 (supporting means comprising a single supporting body) made of a pleated nonwoven fabric supported on the frame 11. And a straight tube-shaped ultraviolet lamp 13 (light source) that is supported by the frame 11 and extends in a direction perpendicular to the paper surface.
  • the untreated activated carbon 15 (first adsorbent), the impregnated activated carbon 16 (second adsorbent), and the photocatalyst 17 are supported on the filter 12 as shown exaggeratedly in FIGS. Being done.
  • the above-mentioned impregnated activated carbon 16 is also called impregnated impregnated activated carbon, which is immersed in a solution of chemicals and dried, and the physical adsorption performance of activated carbon is reduced, but the chemical adsorption performance of the impregnated chemicals is obtained.
  • the impregnated activated carbon 16 is obtained by immersing and drying the activated carbon in a phosphoric acid solution in order to obtain a particularly high adsorption capacity for aldehydes.
  • the untreated activated carbon 15 refers to activated carbon which is not subjected to impregnation and impregnation treatment, and has an adsorption ability by physical adsorption.
  • the untreated activated carbon has a high adsorption ability for hydrocarbons (organic compounds) such as toluene. It is used with attention.
  • titanium oxide is used as the photocatalyst 17.
  • the method for supporting the activated carbons 15 and 16 and the photocatalyst 17 is not particularly limited.
  • the method is performed as follows. A sol in which the photocatalyst 17 is dispersed in a hydroxide solution is sprayed onto the mixed granular activated carbons 15 and 16 with a spray and baked at a low temperature to convert the photocatalyst 17 into activated carbon 15 , 16 Then, the activated carbons 15 and 16 to which the photocatalyst 17 is attached are supported on the filter 12 with an adhesive. After the photocatalyst 17 is attached to one of the activated carbons 15 and 16, the photocatalyst 17 may be mixed with the other of the activated carbons 15 and 16 and supported on the filter 12.
  • good deodorizing ability can be exhibited over a long period of time for ordinary odorous substances by combining untreated activated carbon 15 and photocatalyst 17 as in the conventional case. Further, in the present embodiment, as described in detail below, excellent deodorizing ability can be exhibited also with respect to exhaust gas.
  • exhaust gas In places with heavy traffic, the concentration of exhaust gas in the air is high, and exhaust gas enters the vehicle cabin even when air conditioning is performed not only in the state of introducing outside air but also in the state of internal air circulation.
  • This exhaust gas mainly contains hydrocarbons (organic compounds and chemicals) such as benzene, benzene, pendant and xylene.
  • the odorous substances composed of these hydrocarbons are adsorbed on the activated carbons 15 and 16 supported on the filter 12.
  • the adsorption capacity of the untreated activated carbon 15 for hydrocarbons is higher than that of the impregnated activated carbon 16, and the untreated activated carbon 15 is mainly responsible for the adsorption of hydrocarbons.
  • the hydrocarbons adsorbed on the untreated activated carbons 15 and 16 are decomposed by the photocatalyst 17 excited by the ultraviolet lamp 13 and are decomposed into smaller molecules. Most of this decomposition product is carbon dioxide, but it also contains aldehydes (by-products) such as formaldehyde diacetaldehyde.
  • the newly generated aldehyde is not well adsorbed on untreated activated carbon 15.
  • the impregnated activated carbon 16 is also supported on the filter 12, and the aldehyde can be adsorbed by the impregnated activated carbon .16.
  • the adsorbed aldehyde is decomposed by the photocatalyst 17 to finally become carbon dioxide.
  • the hydrocarbons in the exhaust gas are mainly adsorbed on the untreated activated carbon 15 and decomposed by the photocatalyst 17, and the by-product aldehyde is also mainly adsorbed on the impregnated activated carbon 16 and the photocatalyst 17 As a result, a good deodorizing effect can be exhibited.
  • Untreated impregnated photocatalytic Tonoreen co 2 aldehyde other activated carbon activated carbon removal rate incidence incidence material 1 9 0 0 1 0 7 5% 6 0% 3 0% 1 0% material 2 67.5 22.5 1 0 7 2% 8 9 % 5% 6% Material 3 4 5 4 5 1 0 7 1% 9 0% 3% 7% Material 4 22.5 67.5 1 0 6 8% 9 2% 1% 7% Material 5 0 9 0 1 0 4 5% 9 0% 0% 10%
  • Table 1 above untreated activated carbon, impregnated activated carbon, and photocatalyst of various mixed materials are shown by weight%.
  • the toluene removal rate is obtained by comparing the toluene concentration on the upstream side with the toluene concentration on the downstream side. For example, when the downstream toluene concentration is 0.5 ppm with respect to the upstream toluene concentration of 2 ppm, the toluene removal rate is 75%.
  • Table 1 the rates of carbon dioxide, aldehydes, and other emissions are expressed in terms of carbon atoms. That is, it shows how the carbon atoms of the removed toluene are distributed to the above three forms downstream of the deodorizing unit 10. Therefore, the occurrence rate may be interpreted as a distribution rate in terms of carbon atoms.
  • toluene is represented by the chemical formula C 7 H 8 and contains 7 carbon atoms
  • 2 ppm of toluene becomes 14 pp xn in terms of carbon atom concentration.
  • carbon dioxide has one carbon atom, for example, if 8.4 ppm of carbon dioxide is measured, the carbon atom equivalent concentration in carbon dioxide is also 8.4 ppm, which is the above carbon atom equivalent concentration of toluene. Dividing by ppm gives a carbon dioxide emission rate of 60%.
  • formaldehyde is represented by the formula HCHO and contains one carbon atom, so 1 ppm of formaldehyde is 1 ppm in terms of carbon atom concentration.
  • Acetaldehyde is represented by the chemical formula CH 3 CH 0 and contains two carbon atoms, so 1 ppm of acetoaldehyde is 2 ppm in terms of carbon atoms.
  • FIGS. 4 and 5 show a second embodiment of the present invention.
  • the deodorizing unit 10 ′ of this embodiment is incorporated in an air conditioner instead of the deodorizing unit 10 of the first embodiment, and the frame 11 ′ has the first and the first in order from the upstream side to the downstream side.
  • Second filters 12A and 12B (first and second carriers) are supported.
  • Upper and lower two ultraviolet lamps 13 are arranged between the filters 12A and 12B.
  • An untreated activated carbon 15 and a photocatalyst 17 are supported on the first filter 12A on the upstream side.
  • an impregnated activated carbon 16 and a photocatalyst 17 are arranged.
  • the untreated activated carbon 15 adsorbs mainly hydrocarbons such as toluene in the upstream first filter 12A, and the photocatalyst 17 decomposes the hydrocarbons.
  • Decomposition by-products such as aldehydes are not adsorbed so much by the first filter 12A, but are adsorbed by the impregnated activated carbon 16 in the downstream second filter 12B and decomposed by the photocatalyst 17.
  • the intermediate ultraviolet lamp 13 excites the photocatalysts of both filters 12A and 12B.
  • the roles are shared by the two filters 12A and 12B, and the by-products that cannot be completely captured by the upstream first filter 12A are removed by the downstream second filter 1A. 2 B can be reliably captured and decomposed.
  • both of the two types of activated carbon 15 and 16 and the photocatalyst 17 may be supported on both of the two filters 12A and 12B.
  • the first filter 12A carries more untreated activated carbon 15 than the impregnated activated carbon 16
  • the second filter 12B carries more impregnated activated carbon 16 than the untreated activated carbon 15
  • a deodorizing effect equivalent to the form can be obtained.
  • zeolite or the like may be used instead of untreated activated carbon. Further, zinc oxide or the like may be used as the photocatalyst.
  • the light source may be in the form of an LED instead of a lamp.
  • the filter may be a honeycomb type instead of a pre-type. Industrial applicability
  • the present invention is not limited to the vehicle air conditioner, but may be used for other purposes.
  • it can be used to decompose ethylene (hydrocarbons, organic compounds).
  • ethylene hydrocarbons, organic compounds
  • aldehydes as decomposition by-products. If such a device for removing ethylene is provided in the fruit storage room, the ripening of the fruit can be delayed.
  • the present invention may be applied to an apparatus for removing a chemical substance emitted from house building materials in a house.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Environmental & Geological Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Epidemiology (AREA)
  • Biomedical Technology (AREA)
  • Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
  • Catalysts (AREA)
  • Separation Of Gases By Adsorption (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)

Abstract

L'invention concerne un appareil pour l'élimination de substances chimiques, dans lequel un charbon actif non traité (15) faisant office de premier adsorbant, un charbon actif imprégné (16) faisant office de deuxième adsorbant, et un photocatalyseur (17) sont prévus sur un filtre (17) faisant office de moyen porteur. Les hydrocarbures (composés organiques), tels que le toluène, sont adsorbés sur le charbon actif non traité et sont ensuite décomposés par le photocatalyseur. Les aldéhydes qui constituent les sous-produits de la réaction de décomposition des hydrocarbures sont ensuite adsorbés sur le charbon actif imprégné (16) puis sont décomposés par le photocatalyseur.
PCT/JP2001/001177 2000-02-22 2001-02-19 Appareil pour l'elimination d'une substance chimique Ceased WO2001062307A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2000-43796 2000-02-22
JP2000043796A JP2001232154A (ja) 2000-02-22 2000-02-22 化学物質除去装置

Publications (1)

Publication Number Publication Date
WO2001062307A1 true WO2001062307A1 (fr) 2001-08-30

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Family Applications (1)

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PCT/JP2001/001177 Ceased WO2001062307A1 (fr) 2000-02-22 2001-02-19 Appareil pour l'elimination d'une substance chimique

Country Status (2)

Country Link
JP (1) JP2001232154A (fr)
WO (1) WO2001062307A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2838380A1 (fr) * 2002-04-12 2003-10-17 Valeo Climatisation Purification de l'air de l'habitacle d'un vehicule par absorption et photocatalyse
EP1417978A4 (fr) * 2000-12-28 2004-11-24 Toshiba Lighting & Technologyc Dispositif desodorisant
EP3520880A1 (fr) * 2018-02-05 2019-08-07 Airlabs BV Filtre à gaz composite polyvalent
WO2020173885A1 (fr) * 2019-02-25 2020-09-03 The Queen's University Of Belfast Procédé et appareil d'oxydation d'alcane
IT202000019441A1 (it) * 2020-08-06 2022-02-06 Ufi Innovation Ct Srl Assieme di filtrazione con unità di trattamento
IT202000019432A1 (it) * 2020-08-06 2022-02-06 Ufi Innovation Ct Srl Assieme di filtrazione con unità di trattamento

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4664064B2 (ja) * 2004-12-27 2011-04-06 株式会社エクォス・リサーチ フィルタ
JP4914878B2 (ja) * 2008-09-25 2012-04-11 富士フイルム株式会社 空気清浄装置
US20100310441A1 (en) * 2009-06-05 2010-12-09 Basf Corporation Catalytic Article for Removal of Volatile Organic Compounds in Low Temperature Applications
CN111542346A (zh) 2017-10-17 2020-08-14 摩乐酷公司 用于光电化学空气净化的系统和方法
EP3826962A4 (fr) * 2018-07-26 2022-04-27 Molekule, Inc. Système de filtration de fluide et procédé d'utilisation
CN110193284B (zh) * 2019-06-10 2022-01-28 山东吉特工业科技股份有限公司 一种光催化空气净化器
US12343680B2 (en) 2020-01-17 2025-07-01 Molekule Group, Inc. Fluid filtration system and method of use
WO2022047421A1 (fr) 2020-08-31 2022-03-03 Molekule, Inc. Filtre à air et son milieu filtrant

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Publication number Priority date Publication date Assignee Title
EP0325133A1 (fr) * 1988-01-22 1989-07-26 Hitachi, Ltd. Dispositif pour enlever les mauvaises odeurs
JPH11262626A (ja) * 1998-03-18 1999-09-28 Mitsubishi Paper Mills Ltd 脱臭剤および脱臭シート
JPH11276562A (ja) * 1998-03-26 1999-10-12 Mitsubishi Paper Mills Ltd 吸着触媒複合シート
JPH11309203A (ja) * 1998-04-28 1999-11-09 Mitsubishi Paper Mills Ltd 脱臭剤及び脱臭シート
JP2000037449A (ja) * 1998-07-23 2000-02-08 Zexel Corp 車両用脱臭装置及び車両用空調ユニット
JP2000262604A (ja) * 1999-03-17 2000-09-26 Mitsubishi Paper Mills Ltd 脱臭剤および脱臭シート

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0325133A1 (fr) * 1988-01-22 1989-07-26 Hitachi, Ltd. Dispositif pour enlever les mauvaises odeurs
JPH11262626A (ja) * 1998-03-18 1999-09-28 Mitsubishi Paper Mills Ltd 脱臭剤および脱臭シート
JPH11276562A (ja) * 1998-03-26 1999-10-12 Mitsubishi Paper Mills Ltd 吸着触媒複合シート
JPH11309203A (ja) * 1998-04-28 1999-11-09 Mitsubishi Paper Mills Ltd 脱臭剤及び脱臭シート
JP2000037449A (ja) * 1998-07-23 2000-02-08 Zexel Corp 車両用脱臭装置及び車両用空調ユニット
JP2000262604A (ja) * 1999-03-17 2000-09-26 Mitsubishi Paper Mills Ltd 脱臭剤および脱臭シート

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1417978A4 (fr) * 2000-12-28 2004-11-24 Toshiba Lighting & Technologyc Dispositif desodorisant
FR2838380A1 (fr) * 2002-04-12 2003-10-17 Valeo Climatisation Purification de l'air de l'habitacle d'un vehicule par absorption et photocatalyse
WO2003086792A1 (fr) * 2002-04-12 2003-10-23 Valeo Climatisation Purification de l'air de l'habitacle d'un vehicule par adsorption et photocatalyse
EP3520880A1 (fr) * 2018-02-05 2019-08-07 Airlabs BV Filtre à gaz composite polyvalent
WO2019149952A1 (fr) * 2018-02-05 2019-08-08 Airlabs Bv Filtre à gaz composite à usages multiples
CN111683728A (zh) * 2018-02-05 2020-09-18 爱尔拉布斯私人有限公司 多用途复合气体过滤器
WO2020173885A1 (fr) * 2019-02-25 2020-09-03 The Queen's University Of Belfast Procédé et appareil d'oxydation d'alcane
IT202000019441A1 (it) * 2020-08-06 2022-02-06 Ufi Innovation Ct Srl Assieme di filtrazione con unità di trattamento
IT202000019432A1 (it) * 2020-08-06 2022-02-06 Ufi Innovation Ct Srl Assieme di filtrazione con unità di trattamento

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