JPH0985052A - Method for treating trichroloethylene-containing exhaust gas and apparatus therefor - Google Patents
Method for treating trichroloethylene-containing exhaust gas and apparatus thereforInfo
- Publication number
- JPH0985052A JPH0985052A JP7266286A JP26628695A JPH0985052A JP H0985052 A JPH0985052 A JP H0985052A JP 7266286 A JP7266286 A JP 7266286A JP 26628695 A JP26628695 A JP 26628695A JP H0985052 A JPH0985052 A JP H0985052A
- Authority
- JP
- Japan
- Prior art keywords
- exhaust gas
- photocatalyst
- trichlorethylene
- fabric
- light
- 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
Landscapes
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
- Catalysts (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、光触媒を用い、光
を照射することにより排気中に存在するトリクロロエチ
レンを高効率で分解し、排気を浄化する、排気処理方法
と、その方法に使用する処理装置に関する。さらに詳し
くは、脱脂工程等で使用済みのトリクロロエチレンを高
濃度含有する排気、あるいは活性炭吸着法を用いたトリ
クロロエチレンの回収法において水蒸気置換を行った後
のトリクロロエチレン含有排気等の処理に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an exhaust gas treatment method, which uses a photocatalyst and decomposes trichlorethylene existing in the exhaust gas by irradiating light with high efficiency to purify the exhaust gas, and a process used in the method. Regarding the device. More specifically, the present invention relates to treatment of exhaust gas containing a high concentration of used trichlorethylene in a degreasing step or the like, or exhaust gas containing trichlorethylene after performing steam replacement in a trichlorethylene recovery method using an activated carbon adsorption method.
【０００２】[0002]
【従来の技術】従来、トリクロロエチレン含有排気を処
理する方法としては、活性炭吸着法や曝気処理法あるい
はこれらを併用した方法が用いられている。2. Description of the Related Art Conventionally, an activated carbon adsorption method, an aeration treatment method, or a combination of these methods has been used as a method for treating trichloroethylene-containing exhaust gas.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、前記活
性炭吸着法では、活性炭の吸着能が飽和に達すると交換
や洗浄をしなければならないといった欠点を有する。さ
らに、活性炭の劣化時期の把握が困難であり、吸着後の
廃活性炭の処理の問題や装置が大がかりになるといった
問題がある。また、曝気処理法では基本的に吸着や分解
作用がなく大気中にトリクロロエチレンが放出されるた
め、人体への発ガン性や難分解性で環境へ蓄積されると
いった問題がある。現在、トリクロロエチレンの大気放
出の基準許容量は３０〜１００ｍｇ／ｍ3 位に設定され
ており、曝気処理法では大量の空気によってトリクロロ
エチレン濃度が急速に安全なレベルまで希釈されること
から特に問題視されていないが、将来大気中に放出する
ことが厳重に規制または禁止された場合には使用できな
いといった問題がある。本発明は、これら従来技術の欠
点を解消し、トリクロロエチレンを分解して排気を浄化
する、排気処理方法と、その方法に使用する処理装置を
提供することを目的としている。However, the above-mentioned activated carbon adsorption method has a drawback that it must be replaced or washed when the adsorption capacity of activated carbon reaches saturation. Further, it is difficult to grasp the deterioration time of the activated carbon, and there is a problem that the activated carbon that has been adsorbed is treated and the equipment becomes large. Further, in the aeration treatment method, since there is basically no adsorption or decomposition action and trichlorethylene is released into the atmosphere, there is a problem that it is carcinogenic to the human body or is hardly decomposed and is accumulated in the environment. At present, the standard permissible release amount of trichlorethylene to the atmosphere is set to 30 to 100 mg / m3, and in the aeration treatment method, trichlorethylene concentration is rapidly diluted to a safe level by a large amount of air, which is especially problematic. However, there is a problem that it cannot be used if it is strictly regulated or prohibited to release it into the atmosphere in the future. It is an object of the present invention to eliminate these drawbacks of the prior art and provide an exhaust gas treatment method for decomposing trichlorethylene to purify exhaust gas, and a treatment device used for the method.
【０００４】[0004]
【課題を解決するための手段】本発明者らは、前記課題
を解決するため鋭意検討の結果、織布に担持した光触媒
を用いた酸化反応を利用することにより、トリクロロエ
チレンを高効率で分解できることを見いだし、本発明を
完成させた。即ち、本発明のトリクロロエチレン含有排
気処理方法は、トリクロロエチレン含有排気中のトリク
ロロエチレンを、織布に担持した光触媒により分解して
該排気を浄化することを特徴とする。また、本発明のト
リクロロエチレン含有排気処理装置は、トリクロロエチ
レン含有排気を通過させる容器内に、織布に担持した光
触媒を配置すると共に該光触媒に光を照射するための光
源を備えたことを特徴とする。Means for Solving the Problems As a result of earnest studies for solving the above problems, the present inventors have found that trichlorethylene can be decomposed with high efficiency by utilizing an oxidation reaction using a photocatalyst carried on a woven cloth. Then, they have completed the present invention. That is, the trichlorethylene-containing exhaust treatment method of the present invention is characterized in that trichlorethylene in the trichlorethylene-containing exhaust is decomposed by the photocatalyst carried on the woven cloth to purify the exhaust. Further, the trichlorethylene-containing exhaust treatment device of the present invention is characterized in that a photocatalyst supported on a woven fabric is arranged in a container through which the trichlorethylene-containing exhaust passes, and a light source for irradiating the photocatalyst with light is provided. .
【０００５】前記光触媒としては、酸化チタンや酸化亜
鉛など数多くのものが提案されているが、分解効率や安
全性、安定性の点から酸化チタンが好ましい。該酸化チ
タンはルチル形、アナターゼ形、あるいはこれらの共存
形のいずれでもかまわないが、低エネルギの光に反応さ
せるにはルチル形が適しており、また、反応の活性を高
めるためにはアナターゼ形が適している。この光触媒の
担持方法としては、取扱い性や分解効率の点から、織布
を構成する繊維表面に膜状に担持するのが好ましい。Many photocatalysts such as titanium oxide and zinc oxide have been proposed, but titanium oxide is preferred from the viewpoints of decomposition efficiency, safety and stability. The titanium oxide may be in the rutile form, the anatase form, or a coexisting form thereof, but the rutile form is suitable for reacting with low-energy light, and the anatase form is suitable for enhancing the activity of the reaction. Is suitable. As a method of supporting the photocatalyst, it is preferable to support the photocatalyst in the form of a film on the surface of the fibers constituting the woven fabric from the viewpoints of handleability and decomposition efficiency.
【０００６】また、前記光触媒に、白金、パラジウム、
ロジウム、金、銀、銅等の貴金属あるいはそれらの貴金
属の硝酸塩、硫酸塩、酢酸塩等を担持させてもよい。こ
の貴金属の担持方法としては、光析出法、詳しくは金属
イオン水を吹き付けるか、金属イオン水にディップした
後光を照射する方法、あるいは金属イオン水にディップ
した状態で光を照射する方法によって光還元メッキによ
り固定化する方法を用いれば容易である。The photocatalyst may be platinum, palladium,
A noble metal such as rhodium, gold, silver or copper, or a nitrate, sulfate or acetate of these noble metals may be supported. As the method for supporting the noble metal, a photoprecipitation method, specifically, a method of spraying metal ion water or a method of irradiating light after dipping in metal ion water, or a method of irradiating light in a state of dipping in metal ion water is used. It is easy to use the method of fixing by reduction plating.
【０００７】前記光触媒の担持体として織布を選んだの
は、取扱い性や通気性、強度等の点から選択したもの
で、織布の中でも前記酸化チタンと強固な結合（Ｔｉ−
Ｏ−Ｓｉ結合）を形成することができ、かつ耐薬品性、
耐光性に優れた酸化珪素を含む無機質繊維で構成された
織布が好ましい。ここでいう酸化珪素を含む無機質繊維
とは、例えば石英ガラス、高石英ガラス、Ｅガラス、Ｃ
ガラス、Ｓガラス、Ａガラス等、光を透すならばどのよ
うな組成でもかまわないが、経済性からＥガラス繊維が
好ましい。また、織布の目付け（ｇ／ｍ2 ）は、いくら
のものでもかまわないが、取扱い性や分解効率の関係か
ら、通常１００〜９００ｇ／ｍ2 のものを用いる。ま
た、構成する無機質繊維の平均繊維径は特に限定される
ものではないが、製造可能でしかも被処理排気との接触
面積を確保して効率を得るため５〜２０ミクロンが好ま
しい。さらに、織布の打込み密度、厚さ、引張強度は特
に限定されるものではないが、被処理排気に対する強度
の観点から、各々タテ、ヨコ共に１０〜８０本／２５ｍ
ｍ、０．０１〜２．０ｍｍ、５ｋｇｆ／２０ｍｍ巾以上
が好ましい。The woven fabric was selected as the carrier for the photocatalyst in view of handleability, air permeability, strength and the like. Among the woven fabrics, a strong bond with the titanium oxide (Ti-
O-Si bond) and chemical resistance,
A woven fabric composed of inorganic fibers containing silicon oxide having excellent light resistance is preferable. The inorganic fiber containing silicon oxide as used herein is, for example, quartz glass, high quartz glass, E glass, C
Any composition such as glass, S glass, A glass, etc. may be used as long as it allows light to pass through, but E glass fiber is preferable from the economical viewpoint. The basis weight (g / m 2 ) of the woven fabric may be any, but in view of handleability and decomposition efficiency, 100 to 900 g / m 2 is usually used. The average fiber diameter of the constituent inorganic fibers is not particularly limited, but is preferably 5 to 20 μm in order to be manufacturable and to secure the contact area with the exhaust gas to be treated to obtain efficiency. Further, the driving density, thickness, and tensile strength of the woven fabric are not particularly limited, but from the viewpoint of strength against exhaust to be treated, both vertical and horizontal are 10 to 80 fibers / 25 m.
m, 0.01 to 2.0 mm, 5 kgf / 20 mm width or more are preferable.
【０００８】前記Ｔｉ−Ｏ−Ｓｉ結合は、加熱により酸
化チタンとなる酸化チタンの前駆体と有機物樹脂との溶
液を出発原料として用いることで得られる。かかる酸化
チタンの前駆体としては、チタンアルコキシド、チタン
塩化物、チタン硫化物、チタン酢酸塩等が使用できる
が、有機物樹脂との相溶性の関係から、アルコール類を
相溶性溶媒として用いる場合はチタンアルコキシド、水
を相溶性溶媒として用いる場合はチタン塩化物、チタン
硫化物、チタン酢酸塩を選択することが好ましい。しか
し、前記前駆体と有機物樹脂とが相溶する場合はどの組
み合わせを選択してもかまわない。The Ti-O-Si bond can be obtained by using a solution of a titanium oxide precursor which becomes titanium oxide by heating and an organic resin as a starting material. As the titanium oxide precursor, titanium alkoxide, titanium chloride, titanium sulfide, titanium acetate and the like can be used. However, when alcohols are used as a compatible solvent, titanium is used because of the compatibility with the organic resin. When alkoxide or water is used as a compatible solvent, titanium chloride, titanium sulfide or titanium acetate is preferably selected. However, when the precursor and the organic resin are compatible with each other, any combination may be selected.
【０００９】また、有機物樹脂としては、アクリル系、
オレフィン系等が一般的であるが、製造工程中の焼成工
程で酸化分解することが必要であるため、分解温度が２
００℃以上かつ焼成温度以下の樹脂であって、さらに該
酸化チタンの前駆体との相溶性があればよく、モノマー
の種類や分子量によって限定されるものではない。上記
したように、選定された前駆体と有機物樹脂とを相溶性
のある溶媒に溶解してなる溶液を酸化チタン光触媒製造
用の出発原料とする。即ち、この出発原料から光触媒を
得るためには、担持体となるガラス繊維等の酸化珪素を
含む無機質繊維で構成される織布をこの原料液にディッ
プするか、あるいは、この原料液を塗布、スプレーする
等して、乾燥した後、焼成すればよい。この乾燥は、１
５０℃以下で３０分以上行うことが好ましい。また、液
担持後乾燥まで及び乾燥後焼成までの昇温速度は１０℃
／分以下が好ましい。また、最終焼成工程は織布の耐熱
性を考慮して行う必要があるが、５５０℃以下の温度で
焼成することが好ましい。As the organic resin, acrylic resin,
Olefin-based compounds are generally used, but the decomposition temperature is 2 because oxidative decomposition is required in the firing process during the manufacturing process.
It is only necessary for the resin to be at least 00 ° C. and not more than the firing temperature as long as it is compatible with the titanium oxide precursor, and is not limited by the type and molecular weight of the monomer. As described above, a solution obtained by dissolving the selected precursor and the organic resin in a compatible solvent is used as a starting material for producing a titanium oxide photocatalyst. That is, in order to obtain a photocatalyst from this starting raw material, a woven fabric composed of inorganic fibers containing silicon oxide such as glass fiber serving as a carrier is dipped in this raw material liquid, or this raw material liquid is applied, It may be fired after being dried by spraying or the like. This drying is 1
It is preferably carried out at 50 ° C. or lower for 30 minutes or longer. In addition, the temperature rising rate from the liquid loading to the drying and the drying to the firing is 10 ° C.
/ Min or less is preferable. Further, the final firing step needs to be performed in consideration of the heat resistance of the woven fabric, but it is preferable to perform firing at a temperature of 550 ° C. or lower.
【００１０】また、光源は、低圧水銀灯や殺菌灯あるい
はブラックライト蛍光灯等を用いるとよいが、反応速度
を考慮しなければ一般蛍光灯でもかまわない。The light source may be a low-pressure mercury lamp, a germicidal lamp, a black light fluorescent lamp, or the like, but a general fluorescent lamp may be used if the reaction speed is not taken into consideration.
【００１１】排気処理装置に用いる反応容器は、例えば
反応容器をプラスチック類、ホウ珪酸塩ガラスあるいは
石英ガラス等による透明容器として内部に光触媒を配置
し該反応容器の外側に設置した光源から光を照射するい
わゆる外部照射型にしてもよく、また、該反応容器を特
に透明容器にすることなく該反応容器内に光源と光触媒
を配置するいわゆる内部照射型にしてもよい。The reaction vessel used in the exhaust treatment device is, for example, a transparent vessel made of plastics, borosilicate glass, quartz glass, or the like, which is a transparent vessel, and a photocatalyst is disposed inside the vessel, and light is emitted from a light source installed outside the reaction vessel. The so-called external irradiation type may be used, or the so-called internal irradiation type may be used in which the light source and the photocatalyst are arranged in the reaction container without making the reaction container a transparent container.
【００１２】前記光触媒の作用を説明すると、例えば、
酸化チタン系の光触媒は４００ｎｍ以下の波長の光によ
り容易に励起される。ここで、励起された光触媒は水を
分解し、ヒドロキシラジカル（・ＯＨ）を生成する。こ
のヒドロキシラジカルは高い酸化力を有し、式１に示す
ように有害なトリクロロエチレン（Ｃ2ＨＣ１3）を無害
なＣＯ2とＨＣｌおよびＨ2Ｏとに分解する。 Ｃ2ＨＣ１3＋６［・ＯＨ］→２ＣＯ2＋３ＨＣｌ＋２Ｈ2Ｏ・・・（式１）Explaining the action of the photocatalyst, for example,
The titanium oxide-based photocatalyst is easily excited by light having a wavelength of 400 nm or less. Here, the excited photocatalyst decomposes water to generate a hydroxy radical (.OH). The hydroxy radical has a high oxidizing power and decomposes harmful trichlorethylene (C 2 HC1 3 ) into harmless CO 2 and HCl and H 2 O as shown in Formula 1. C 2 HC1 3 +6 [.OH] → 2CO 2 + 3HCl + 2H 2 O ... (Formula 1)
【００１３】また、本発明のうちＴｉ−Ｏ−Ｓｉ結合を
形成した光触媒担持織布は、強固な結合で酸化チタンと
無機質繊維とを接合してあるため、光触媒が脱落するこ
となく長寿命で担持することができる。In the present invention, the photocatalyst-supporting woven fabric having the Ti--O--Si bond is formed by bonding the titanium oxide and the inorganic fiber with a strong bond, so that the photocatalyst does not drop out and has a long life. It can be carried.
【００１４】[0014]
【発明の実施の形態】以下、本発明の実施例を図面に基
づき説明する。図１は本発明のトリクロロエチレン含有
排気処理装置の一実施例を示すもので、外部照射型の一
例である。図中１は透明石英ガラスからなる反応容器を
示し、該反応容器１内にはアナターゼ形酸化チタンから
なる光触媒を担持した織布２が配置され、該反応容器１
内に排気排出源３から出るトリクロロエチレン含有排気
を通過させている。そして、該反応容器１の近傍に設け
た光源４から光を照射してトリクロロエチレンを分解し
排気を浄化するように構成されている。BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows an embodiment of an exhaust treatment apparatus containing trichlorethylene according to the present invention, which is an example of an external irradiation type. In the figure, reference numeral 1 denotes a reaction vessel made of transparent quartz glass, and a woven fabric 2 carrying a photocatalyst made of anatase type titanium oxide is arranged in the reaction vessel 1.
The trichloroethylene-containing exhaust gas from the exhaust gas emission source 3 is passed through. Then, light is emitted from a light source 4 provided in the vicinity of the reaction container 1 to decompose trichlorethylene and purify exhaust gas.
【００１５】図２は内部照射型のトリクロロエチレン含
有排気処理装置の一例である。図中５は不透明ステンレ
スからなる反応容器を示し、該反応容器５内には光触媒
を担持した織布２と光源４とが配置され、該反応容器５
内に排気排出源３から出るトリクロロエチレン含有排気
を通過させ、前記光源４から光を照射してトリクロロエ
チレンを分解し排気を浄化するように構成されている。FIG. 2 shows an example of an internal irradiation type exhaust treatment device containing trichlorethylene. In the figure, reference numeral 5 denotes a reaction container made of opaque stainless steel, in which a woven fabric 2 carrying a photocatalyst and a light source 4 are arranged.
The exhaust gas containing the trichlorethylene containing gas emitted from the exhaust gas emission source 3 is passed through the inside, and light is emitted from the light source 4 to decompose the trichlorethylene and purify the exhaust gas.
【００１６】[0016]
【実施例】次に、前記図１に示す装置の使用例に即し、
具体的な実施例を比較例と共に説明する。 （実施例１）反応容器１内に光触媒を３重量％担持した
Ｅガラス繊維製織布２（繊維径７μｍ，目付け４９０ｇ
／ｍ2 ，打込み密度タテ３１本／２５ｍｍ，ヨコ２４本
／２５ｍｍ，厚さ０．６３ｍｍ，模紗織り）を３０ｇ配
置し、トリクロロエチレン含有排気を５ｍ／分の速度で
通過させた。このときのトリクロロエチレン濃度をＪＩ
Ｓ Ｋ０１２５「用水・排水中の低分子量ハロゲン化炭
化水素試験方法」の溶媒抽出・ガスクロマトグラフ法に
準拠して測定したところ、１００ｍｇ／ｍ3 であった。
なお、光源４としては松下電器産業（株）製の２０Ｗ殺
菌灯ＧＬ−２０を８本配置した。光源４より光照射を行
ったところ、排気中のトリクロロエチレン濃度は０．１
ｍｇ／ｍ3 以下と低濃度になった。EXAMPLE Next, in accordance with a usage example of the apparatus shown in FIG.
Specific examples will be described together with comparative examples. (Example 1) E-glass fiber woven cloth 2 (fiber diameter 7 μm, basis weight 490 g) in which 3% by weight of a photocatalyst was loaded in a reaction vessel 1.
/ M 2 , driving density vertical 31 pieces / 25 mm, width 24 pieces / 25 mm, thickness 0.63 mm, mock weave) were arranged in an amount of 30 g, and trichloroethylene-containing exhaust gas was passed at a speed of 5 m / min. The concentration of trichlorethylene at this time is JI
It was 100 mg / m 3 when measured in accordance with the solvent extraction / gas chromatography method of SK0125 “Testing method for low molecular weight halogenated hydrocarbon in water / wastewater”.
As the light source 4, eight 20W germicidal lamps GL-20 manufactured by Matsushita Electric Industrial Co., Ltd. were arranged. When light was irradiated from the light source 4, the concentration of trichlorethylene in the exhaust gas was 0.1.
The concentration was as low as mg / m 3 or less.
【００１７】（比較例１）前記実施例１で用いた光触媒
を３重量％担持したＥガラス繊維製織布２を反応容器１
内に入れなかった以外は前記実施例１と同様の方法で試
験を行ったところ、光照射のみによる分解によってトリ
クロロエチレン濃度は７０ｍｇ／ｍ3 となり、ほとんど
分解されていないことがわかった。(Comparative Example 1) A woven cloth 2 made of E glass fiber carrying 3% by weight of the photocatalyst used in Example 1 was used as a reaction container 1.
A test was conducted in the same manner as in Example 1 except that the trichloroethylene concentration was 70 mg / m 3 due to decomposition only by irradiation with light, and it was found that there was almost no decomposition.
【００１８】[0018]
【発明の効果】このように、本発明によるトリクロロエ
チレン含有排気処理方法並びに処理装置は、従来法と異
なり織布に担持した光触媒によりトリクロロエチレンを
分解して排気を浄化する方法であるため、高効率でかつ
繰り返し処理しても性能が低下しないといった効果を有
する。また、織布を構成する繊維一本一本に均一にかつ
強固なＴｉ−Ｏ−Ｓｉ結合で光触媒の酸化チタンを接合
した場合、光触媒の剥離や脱落がなく、長期にわたり高
効率を維持することができる。また、従来の活性炭吸着
法や曝気処理法の問題点の解決が図られる。As described above, the method and apparatus for treating exhaust gas containing trichlorethylene according to the present invention, unlike the conventional method, is a method of decomposing trichlorethylene by a photocatalyst carried on a woven fabric to purify the exhaust gas, so that it is highly efficient. Further, it has an effect that the performance is not deteriorated even if it is repeatedly processed. Further, when the titanium oxide of the photocatalyst is bonded to each of the fibers constituting the woven fabric uniformly and with a strong Ti—O—Si bond, the photocatalyst does not peel off or fall off, and high efficiency can be maintained for a long time. You can Further, the problems of the conventional activated carbon adsorption method and aeration treatment method can be solved.
【図面の簡単な説明】[Brief description of drawings]
【図１】本発明のトリクロロエチレン含有排気処理装置
の一例の外部照射型のモデル図である。FIG. 1 is a model diagram of an external irradiation type of an example of an exhaust treatment device containing trichlorethylene according to the present invention.
【図２】本発明のトリクロロエチレン含有排気処理装置
の一例の内部照射型のモデル図である。FIG. 2 is a model diagram of an internal irradiation type of an example of a trichlorethylene-containing exhaust treatment device of the present invention.
１ 透明石英ガラス反応容器 ２ 織布 ３ 排気排出源 ４ 光源 ５ 不透明ステンレス反応容器 1 Transparent Quartz Glass Reaction Container 2 Woven Fabric 3 Exhaust Emission Source 4 Light Source 5 Opaque Stainless Reaction Container
Claims (6)
ロロエチレンを、織布に担持した光触媒により分解して
該排気を浄化することを特徴とするトリクロロエチレン
含有排気処理方法。1. A method for treating exhaust gas containing trichlorethylene, which comprises decomposing trichlorethylene in exhaust gas containing trichlorethylene with a photocatalyst carried on a woven fabric to purify the exhaust gas.
徴とする請求項１記載のトリクロロエチレン含有排気処
理方法。2. The method for treating exhaust gas containing trichlorethylene according to claim 1, wherein the photocatalyst is titanium oxide.
して酸化珪素を含む無機質繊維からなる織布に担持させ
たものであることを特徴とする請求項２記載のトリクロ
ロエチレン含有排気処理方法。3. The exhaust treatment method for trichloroethylene-containing exhaust gas according to claim 2, wherein the photocatalyst is supported on a woven fabric made of inorganic fibers containing silicon oxide via a Ti—O—Si bonding layer. .
る容器内に、織布に担持した光触媒を配置すると共に該
光触媒に光を照射するための光源を備えたことを特徴と
するトリクロロエチレン含有排気処理装置。4. A trichlorethylene-containing exhaust treatment device, comprising a photocatalyst supported on a woven fabric, and a light source for irradiating the photocatalyst with light, in a container through which the exhaust containing trichlorethylene is passed.
徴とする請求項４記載のトリクロロエチレン含有排気処
理装置。5. The trichlorethylene-containing exhaust treatment device according to claim 4, wherein the photocatalyst is titanium oxide.
して酸化珪素を含む無機質繊維からなる織布に担持させ
たものであることを特徴とする請求項５記載のトリクロ
ロエチレン含有排気処理装置。6. The trichlorethylene-containing exhaust treatment device according to claim 5, wherein the photocatalyst is supported on a woven fabric made of inorganic fibers containing silicon oxide through a Ti—O—Si bonding layer. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7266286A JPH0985052A (en) | 1995-09-20 | 1995-09-20 | Method for treating trichroloethylene-containing exhaust gas and apparatus therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7266286A JPH0985052A (en) | 1995-09-20 | 1995-09-20 | Method for treating trichroloethylene-containing exhaust gas and apparatus therefor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0985052A true JPH0985052A (en) | 1997-03-31 |
Family
ID=17428847
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7266286A Pending JPH0985052A (en) | 1995-09-20 | 1995-09-20 | Method for treating trichroloethylene-containing exhaust gas and apparatus therefor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0985052A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20000017687A (en) * | 1999-04-30 | 2000-04-06 | 최수현 | Photocatalyst-coated thin film photoreactor system for the simultaneous or the respective treatment of SOx and NOx |
| JP2002102656A (en) * | 2000-09-28 | 2002-04-09 | Nippon Muki Co Ltd | Method and apparatus for decomposing organic substance using photocatalyic structure body |
| US6884399B2 (en) | 2001-07-30 | 2005-04-26 | Carrier Corporation | Modular photocatalytic air purifier |
-
1995
- 1995-09-20 JP JP7266286A patent/JPH0985052A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20000017687A (en) * | 1999-04-30 | 2000-04-06 | 최수현 | Photocatalyst-coated thin film photoreactor system for the simultaneous or the respective treatment of SOx and NOx |
| JP2002102656A (en) * | 2000-09-28 | 2002-04-09 | Nippon Muki Co Ltd | Method and apparatus for decomposing organic substance using photocatalyic structure body |
| US6884399B2 (en) | 2001-07-30 | 2005-04-26 | Carrier Corporation | Modular photocatalytic air purifier |
| US7758821B2 (en) | 2001-07-30 | 2010-07-20 | Carrier Corporation | Modular photocatalytic air purifier |
| US7951327B2 (en) | 2001-07-30 | 2011-05-31 | Carrier Corporation | Photocatalytic air purifier for a fan coil unit |
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