【０００１】[0001]
【産業上の利用分野】本発明は、新規な有害ガス含有気
体の酸化処理方法およびその装置に関し、更に詳しく
は、本発明は、例えば、塗装焼付工程、醸造工程、飼料
保管所、アルコール自動車等から発生するホルムアルデ
ヒド、アセトアルデヒドなどのアルデヒド類ガスなどの
有機性ガス、排ガス中の窒素酸化物（ＮＯｘ）、硫黄酸
化物（ＳＯｘ）等の有害ガスを酸化分解して無害化する
有害ガス含有気体の処理方法およびその装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a novel method for oxidizing a gas containing a harmful gas and an apparatus therefor. More specifically, the present invention relates to, for example, a painting / baking process, a brewing process, a feed storage, an alcohol vehicle, etc. Of harmful gases such as formaldehyde and aldehyde gases such as acetaldehyde, and toxic gases such as nitrogen oxides (NOx) and sulfur oxides (SOx) in exhaust gas that are oxidatively decomposed to be harmless The present invention relates to a processing method and an apparatus thereof.
【０００２】[0002]
【従来の技術】有害ガスを含有する気体に関しては、そ
の危険性および環境衛生上の見地から各種の作業環境基
準および衛生基準が設けられ、これらを含む気体の簡便
な処理技術が要求されている。かかる有害ガスを含有す
る気体の一般的な処理方法としては、活性炭吸着法が知
られているが、この方法には、活性炭の吸着能が小さい
こと、温度が上昇すると吸着された有害ガスが再放出し
てくること、高温環境で使用すると活性炭が発火するこ
となどの使用に当たって多くの難点がある。又アルデヒ
ド類ガスを一度吸着した活性炭は、再生使用が出来ない
等の不経済な点もある。2. Description of the Related Art Regarding a gas containing a harmful gas, various working environment standards and hygiene standards are set from the viewpoint of danger and environmental hygiene, and a simple technique for treating a gas containing these is required. . An activated carbon adsorption method is known as a general method for treating a gas containing such a harmful gas, but this method has a small adsorption capacity for the activated carbon, and the adsorbed harmful gas is regenerated when the temperature rises. There are many difficulties in use, such as emission of carbon and ignition of activated carbon when used in a high temperature environment. In addition, activated carbon that has once adsorbed aldehyde gases has the disadvantage that it cannot be reused.
【０００３】有害ガスを含有する気体の別の処理法とし
て、有機性ガスなどに対しては触媒を利用した燃焼酸化
法があるが、この方式は設備が極めて大がかりとなる点
と燃焼酸化に燃料を使う点から、ランニングコストが高
くなるばかりでなく、常に二酸化炭素（ＣＯ2)、窒素酸
化物（ＮＯｘ）等を廃棄側に放出するので地球環境上か
らも好ましくない。As another method for treating a gas containing a harmful gas, there is a combustion oxidation method using a catalyst for an organic gas and the like, but this method requires a large scale of equipment and a fuel for combustion oxidation. In addition to high running cost, carbon dioxide (CO2 ), nitrogen oxides (NOx), etc. are constantly released to the waste side, which is not preferable from the viewpoint of the global environment.
【０００４】[0004]
【発明が解決しようとする課題】従って、本発明は、前
記した従来技術の問題点に鑑み、長期間にわたって有害
ガスの処理効果を発揮することができ、しかも安全でラ
ンニングコストが安い有害ガス含有気体の処理方法およ
びその装置を提供することを目的とする。SUMMARY OF THE INVENTION Therefore, in view of the above-mentioned problems of the prior art, the present invention contains a harmful gas containing the effect of treating harmful gas for a long period of time, which is safe and has a low running cost. An object of the present invention is to provide a method for treating gas and an apparatus therefor.
【０００５】[0005]
【課題を解決するための手段】本発明に従えば、前記課
題は、過酸化水素水又はアルカリ含有過酸化水素水を含
浸させた無機質の多孔質な通気性多孔体と、有害ガス含
有気体とを接触せしめて、有害ガスを酸化処理すること
を特徴とする有害ガス含有気体の酸化処理方法によって
解決される。According to the present invention, the above object is to provide an inorganic porous permeable porous material impregnated with hydrogen peroxide solution or alkali-containing hydrogen peroxide solution, and a harmful gas-containing gas. This is solved by an oxidation treatment method of a harmful gas-containing gas, which comprises contacting with each other to oxidize the harmful gas.
【０００６】本発明に従えば、反応槽中のガス通過流路
に無機質の多孔質な通気性多孔体を装填し、該多孔体に
過酸化水素水又はアルカリ含有過酸化水素水を間欠的又
は連続的に供給する給水装置を設けた、酸化処理装置も
提供される。According to the present invention, the gas passage in the reaction tank is loaded with an inorganic porous permeable porous material, and hydrogen peroxide water or alkali-containing hydrogen peroxide water is intermittently or There is also provided an oxidation treatment device provided with a water supply device for continuously supplying.
【０００７】[0007]
【作用】本発明は有害ガス含有気体と過酸化水素水又は
アルカリ含有過酸化水素水を含浸させた無機質の多孔質
な通気性多孔体とを接触させることにより多孔質部に保
持されている、過酸化水素水又はアルカリ含有過酸化水
素水と有害ガス含有気体とを接触反応せしめて、酸化処
理することによって、加熱等の処理を施すことなく、効
率的に且つ簡便な方法で有害ガスを無害なものに酸化分
解する方法及びその酸化処理フィルターを提供するもの
である。According to the present invention, the harmful gas-containing gas is held in the porous portion by bringing the gas containing the harmful gas into contact with the inorganic porous air-permeable porous body impregnated with the hydrogen peroxide solution or the alkali-containing hydrogen peroxide solution. Harmful gas is harmless by an efficient and simple method without applying heat treatment by oxidizing the hydrogen peroxide water or alkali-containing hydrogen peroxide water and the harmful gas-containing gas by catalytic reaction. The present invention provides a method of oxidatively decomposing into various substances and a filter for the oxidation treatment thereof.
【０００８】本発明に従えば、無機質の保水性の高い多
孔質な通気性多孔体（以下、単に多孔体という）に、過
酸化水素水又はアルカリ含有過酸化水疎水（以下に、単
に過酸化水素ということがある）を含浸させ、その多孔
体内に有害ガス含有気体を通過させると、有害ガスが極
めて効果的に酸化されて有害ガス含有気体を無害化する
ことができる。According to the present invention, an inorganic porous high-permeability porous material (hereinafter, simply referred to as a porous material) is provided with a hydrogen peroxide solution or an alkali-containing peroxide water-hydrophobic agent (hereinafter simply referred to as a peroxide). When the harmful gas-containing gas is passed through the porous body, the harmful gas is extremely effectively oxidized and the harmful gas-containing gas can be rendered harmless.
【０００９】[0009]
【態様】以下に本発明の一例を示す。比表面積が１００
ｍ2／ｇの、セラミックからなる多孔体２５ｃｃにｐＨ
１１．０に調整した１．２％過酸化水素（Ｈ2Ｏ2）水
４ｇを含浸させた後、この多孔体中に、ホルムアルデヒ
ド１００ＰＰＭを含有する空気２．５リットル／分を通
過させたところ、５時間に亘り、９０％以上のホルムア
ルデヒドが除去された。この様に極めて効率的に、有害
ガスが除去される作用については、図１に４００倍に拡
大した顕微鏡写真に基づく組織を模式図として示すよう
に、セラミックファイバー１間にあるミクロ空孔部２
に、過酸化水素水が保持され、有害ガスが過酸化水素水
と酸化反応を起してギ酸となり、その後、アルカリによ
って中和されてギ酸ナトリウム塩となるものと考えられ
る。Embodiments An example of the present invention will be shown below. Specific surface area is 100
of m2 / g, pH in the porous body 25cc made of ceramic
After impregnating with 4 g of 1.2% hydrogen peroxide (H2 O2 ) water adjusted to 11.0, 2.5 liter / min of air containing 100 ppm of formaldehyde was passed through this porous body. Over 5% of formaldehyde was removed over 5 hours. As described above, regarding the action of removing the harmful gas extremely efficiently, as shown in the schematic diagram of the structure based on a micrograph magnified 400 times in FIG.
In addition, it is considered that the hydrogen peroxide solution is retained, the harmful gas undergoes an oxidation reaction with the hydrogen peroxide solution to form formic acid, and then is neutralized by an alkali to form a sodium formate salt.
【００１０】上記例において、過酸化水素水１モルでホ
ルムアルデヒド２モルが除去されており、極めて、過酸
化水素水の酸化効率が高いが、これは、多孔体のミクロ
空孔部に、過酸化水素水が膜状に付着し、過酸化水素水
の比表面が大巾に増大されているため、酸化効率が高く
なっているためと想定される。In the above example, 2 mol of formaldehyde was removed with 1 mol of hydrogen peroxide water, and the oxidation efficiency of hydrogen peroxide water was extremely high. This was due to the peroxidation of the micropores of the porous body. It is assumed that the hydrogen water adheres in a film form and the specific surface of the hydrogen peroxide water is greatly increased, so that the oxidation efficiency is high.
【００１１】本発明で使用する無機質の多孔質な通気性
多孔体は、例えば、Ａｌ2Ｏ3，ＳｉＯ2，ＭｇＯ，Ｃ
などから構成することができる。多孔体は、通気性のあ
るものであればよく、例えば、セピオライト、シリカゲ
ル、ゼオライト、活性炭、γ−Ａｌ2Ｏ3など粒状のも
のとすることができ、あるいは、セラミック粉末、セラ
ミックファイバー、活性炭粉末から人工的に成形され
た、セラミックハニカム（例えば、商品名ニチアス
（株）製ハニクル）、活性炭ハニカム（クラレ製）等と
することもできる。本発明において使用する多孔体は、
多孔質であることが大切であり、多孔質の程度を評価す
る比表面積は２ｍ2／ｃｃ以上が好ましい。２ｍ2／ｃ
ｃ未満では、通気性多孔体の保水性が低下する傾向にあ
るので、過酸化水素水の酸化効率が低下するおそれがあ
る。The inorganic porous air-permeable porous material used in the present invention is, for example, Al2 O3 , SiO2 , MgO, C.
Etc. The porous body only needs to have air permeability, and for example, it can be a granular material such as sepiolite, silica gel, zeolite, activated carbon, γ-Al2 O3 , or ceramic powder, ceramic fiber, activated carbon powder. It is also possible to use a ceramic honeycomb (for example, honeycle manufactured by Nichias Co., Ltd.) or an activated carbon honeycomb (manufactured by Kuraray) artificially molded from. The porous body used in the present invention is
It is important to be porous, and the specific surface area for evaluating the degree of porosity is preferably2 m2 / cc or more. 2m2 / c
If it is less than c, the water-holding property of the air-permeable porous body tends to decrease, so that the oxidation efficiency of hydrogen peroxide solution may decrease.
【００１２】過酸化水素水又はアルカリ含有過酸化水素
水中の過酸化水素の濃度については特に制限はないが、
好ましくは処理する有害ガスの濃度および量にもよる
が、一般的には０．１〜１０重量％、更に好ましくは１
〜５重量％である。この過酸化水素濃度が低すぎると含
浸を何回も繰り返す必要があるので煩雑であり、一方過
酸化水素濃度が高すぎると未反応の過酸化水素水が気化
して不経済となり、また不必要に鉄が酸化されるおそれ
がある。The concentration of hydrogen peroxide in the hydrogen peroxide solution or the alkali-containing hydrogen peroxide solution is not particularly limited,
It is preferably 0.1 to 10% by weight, more preferably 1 depending on the concentration and amount of harmful gas to be treated.
~ 5% by weight. If the concentration of hydrogen peroxide is too low, impregnation must be repeated many times, which is complicated. On the other hand, if the concentration of hydrogen peroxide is too high, unreacted hydrogen peroxide solution is vaporized, which is uneconomical and unnecessary. There is a risk that iron will be oxidized.
【００１３】過酸化水素に添加するアルカリとしては、
水酸化ナトリウム、水酸化カリウム、水酸化リチウム、
炭酸ナトリウム、水酸化カルシウム、水酸化マグネシウ
ム、アンモニア、メチルアミン類、エチルアミン類等の
一般的塩基性物質が挙げられる。これらのアルカリの添
加量は、有害ガスの反応によって、生成する酸化反応生
成物によって変わるが、一般的には、過酸化水素水のｐ
Ｈが通常８以上、好ましくは８〜１２の範囲になるよう
に添加するのが好ましい。As the alkali added to hydrogen peroxide,
Sodium hydroxide, potassium hydroxide, lithium hydroxide,
Examples include common basic substances such as sodium carbonate, calcium hydroxide, magnesium hydroxide, ammonia, methylamines, ethylamines. The amount of addition of these alkalis varies depending on the oxidation reaction product produced by the reaction of the harmful gas, but in general, p
It is preferable to add H so that it is usually 8 or more, and preferably 8 to 12.
【００１４】前記したアルカリの添加方法としては、過
酸化水素に直接添加する方法以外に、例えば、有害ガス
含有気体にガス状の微量のアンモニアガス等を添加して
もよい。従って、本発明においては、アルカリ含有過酸
化水素水とは、単に過酸化水素に直接アルカリを添加さ
れてなるもの以外に、上述のように有害ガス含有気体に
微量のガス状アルカリ性ガス等を添加し、反応の際に該
アルカリ含有ガスが過酸化水素水と接触する場合も含む
ものである。As a method of adding the above-mentioned alkali, in addition to the method of directly adding to hydrogen peroxide, for example, a minute amount of gaseous ammonia gas or the like may be added to the harmful gas-containing gas. Therefore, in the present invention, the alkali-containing hydrogen peroxide solution includes, in addition to those obtained by directly adding an alkali to hydrogen peroxide, a trace amount of a gaseous alkaline gas or the like is added to the harmful gas-containing gas as described above. However, it also includes the case where the alkali-containing gas comes into contact with the hydrogen peroxide solution during the reaction.
【００１５】次に本発明の有害ガス含有気体の酸化処理
装置について説明する。本発明に係る酸化処理装置は過
酸化水素水又はアルカリ含有過酸化水素水を間欠的に又
は連続的に供給する無機質の多孔質通気性多孔体部に有
害ガス含有気体を通過させるようにして成る。Next, the apparatus for oxidizing a gas containing a harmful gas according to the present invention will be described. The oxidation treatment apparatus according to the present invention is configured such that a harmful gas-containing gas is passed through an inorganic porous permeable porous body portion that supplies hydrogen peroxide solution or alkali-containing hydrogen peroxide solution intermittently or continuously. .
【００１６】本発明の有害ガス含有気体の酸化処理装置
の−実施態様の概念図を図２に示す。図２に示す酸化処
理装置では、反応槽（有害ガス酸化分解槽）１１内に多
孔体１２を載置し、過酸化水素添加用タンク１９及びア
ルカリ添加用タンク２０から任意に過酸化水素水及び／
又はアルカリ調整タンク１８に添加され、該調整タンク
１８内で添加された過酸化水素水とアルカリを前記濃度
（ｐＨ）となるように調節したアルカリ含有過酸化水素
水の調整溶液１３をスプレーポンプ１４によりスプレー
ノズル１５を介して多孔体１２に間欠的に又は連続的に
供給して散布し、該多孔体１２に該調整溶液１３を含浸
させる。有害ガス含有気体を反応槽１１に導入する導入
口側に送風量を適当に調節できるようになっている送風
ファン１７が設けられ、該送風ファン１７によって反応
槽１１に導入される有害ガス含有気体との酸化反応を可
能ならしめるようにする。本発明の酸化処理装置では、
さらに多孔体１２に調整溶液１３を含浸させた後に滴下
した過剰な溶液を再利用するために調整タンク１８に戻
すことができるように連結され、途中に循環ポンプ１６
および中和反応生成物除去フィルター２１が備えられて
いる。又、必要に応じ多孔体上に中和反応によって生成
した、アルカリ塩をタンク１９又は２０から水を供給
し、攪拌し、ドレン抜き２２から排出することが出来
る。FIG. 2 shows a conceptual diagram of an embodiment of an apparatus for oxidizing a gas containing a harmful gas according to the present invention. In the oxidation treatment apparatus shown in FIG. 2, a porous body 12 is placed in a reaction tank (toxic gas oxidative decomposition tank) 11, and a hydrogen peroxide solution and a hydrogen peroxide solution are arbitrarily supplied from a hydrogen peroxide addition tank 19 and an alkali addition tank 20. /
Alternatively, a spray pump 14 is provided with an adjustment solution 13 of an alkali-containing hydrogen peroxide solution that is added to the alkali adjustment tank 18 and the hydrogen peroxide solution and the alkali added in the adjustment tank 18 are adjusted to have the above concentrations (pH). Is intermittently or continuously supplied to the porous body 12 through the spray nozzle 15 and sprayed, and the porous body 12 is impregnated with the adjusting solution 13. A blower fan 17 is provided on the inlet side for introducing the harmful gas-containing gas into the reaction tank 11, and the blower fan 17 is provided so that the amount of blown air can be appropriately adjusted. The harmful gas-containing gas introduced into the reaction tank 11 by the blower fan 17 If possible, the oxidation reaction with In the oxidation treatment device of the present invention,
Furthermore, the porous body 12 is connected so that it can be returned to the adjustment tank 18 for reuse of the excess solution dropped after impregnating the adjustment solution 13 with the circulation pump 16 in the middle.
And a neutralization reaction product removal filter 21. If necessary, water can be supplied from the tank 19 or 20 to the alkali salt generated by the neutralization reaction on the porous body, and the mixture can be stirred and discharged from the drain port 22.
【００１７】送風ファン１７によって反応槽１１に導入
される有害ガス含有気体は発生源によって粉塵、蒸気、
高温ガス等を含む場合があるが、この場合には、多孔体
の反応性を妨害するので、反応槽への導入前に、フィル
ター、除湿、冷却等の装置を設置のが望ましいことは言
うまでもない。The harmful gas-containing gas introduced into the reaction tank 11 by the blower fan 17 is dust, steam, or
Although it may contain high-temperature gas, it goes without saying that it is desirable to install a device such as a filter, dehumidifying, cooling, etc. before introducing it into the reaction tank because it interferes with the reactivity of the porous body. .
【００１８】[0018]
【実施例】市販品であるニチアス製ハニクルＬ・Ｔ（セ
ラミック・ハニカム、比表面積４０ｍ2／ｃｃ）を２．
５ｃｍ×５ｃｍ×２ｃｍのフィルターとした（８ｇ）。
これに水酸化ナトリウム水溶液でｐＨ１１．０に調整さ
れた１．２％過酸化水素水を４ｃｃ含浸させ、図３に示
す実験装置にて、１００ＰＰＭのホルムアルデヒド含有
の空気を２．５リットル／分で通したところ、出口側の
ホルムアルデヒド濃度の経時変化は表１の上段の値（１
回目出口側濃度）の通りであった。EXAMPLE A commercially available Nichias hanicle L / T (ceramic honeycomb, specific surface area 40 m2 / cc) was used.
The filter was 5 cm × 5 cm × 2 cm (8 g).
This was impregnated with 4 cc of 1.2% hydrogen peroxide solution whose pH was adjusted to 11.0 with an aqueous sodium hydroxide solution, and 100 PPM of formaldehyde-containing air was added at 2.5 liters / minute in the experimental apparatus shown in FIG. After passing, the change of formaldehyde concentration on the outlet side with time is shown in the upper part of Table 1 (1
The concentration at the second exit).
【００１９】その後、上記テストの後のフィルターを水
洗し、上と同様にアルカリ含有過酸化水素水で処理し、
同様の実験をしたところ、出口側濃度は表１下段の値
（２回目出口側濃度）の通りであった。After that, the filter after the above test was washed with water and treated with alkali-containing hydrogen peroxide solution in the same manner as above,
When the same experiment was conducted, the outlet side concentration was as shown in the lower table of Table 1 (second outlet side concentration).
【００２０】[0020]
【表１】[Table 1]
【００２１】上記実験結果より明らかなように、１回目
及び２回目の実験とも、アルカリ含有過酸化水素含浸多
孔体フィルターにより、ガス中のホルムアルデヒドを長
時間にわたって除去出来ることが確認された。As is clear from the above experimental results, in both the first and second experiments, it was confirmed that formaldehyde in the gas could be removed for a long period of time by the alkali-containing hydrogen peroxide-impregnated porous filter.
【００２２】本発明に従えば、過酸化水素中の酸素は１
００％アルデヒドの酸化に利用出来、気液接触酸化とし
ては極めて効率が高い。例えば、５Ｎｍ3／分程度の排
気ガスを出す塗装工場で１日の過酸化水素使用量は１０
０ｇ／日（４０円／日）程度のものである。According to the invention, the oxygen in hydrogen peroxide is 1
It can be used to oxidize 00% aldehyde and is extremely efficient as gas-liquid catalytic oxidation. For example, the amount of hydrogen peroxide used per day is 10 at a coating plant that emits exhaust gas of about 5 Nm3 / min.
It is about 0 g / day (40 yen / day).
【図１】本発明において使用するセラミック多孔体（ニ
チアス・ハニクル）の組織を顕微鏡写真（４００倍）に
基づいて示した模式図である。FIG. 1 is a schematic view showing the structure of a ceramic porous body (Nichias hanicle) used in the present invention based on a micrograph (400 times).
【図２】本発明に係る有害ガス含有気体酸化処理装置の
一例を示す概念図である。FIG. 2 is a conceptual diagram showing an example of a harmful gas-containing gas oxidation treatment apparatus according to the present invention.
【図３】実施例において用いた実験装置を示す図面であ
る。FIG. 3 is a drawing showing an experimental apparatus used in Examples.
１…セラミックファイバー ２…セラミックファイバー間のミクロ空孔 １１…反応槽（有害ガス酸化分解槽） １２…多孔体 １３…調整溶液 １４…スプレーポンプ １５…スプレーノズル １６…循環ポンプ １７…送風ファン １８…調整タンク １９…過酸化水素添加用タンク ２０…アルカリ添加用タンク ２１…中和反応生成物除去フィルター ２２…洗浄水ドレン抜き ３１…ガスボンベ ３２…流量計 ３３…多孔体フィルター ３４…入口側の濃度測定用の配管 ３５…出口側の濃度測定用の配管 DESCRIPTION OF SYMBOLS 1 ... Ceramic fiber 2 ... Micro pores between ceramic fibers 11 ... Reaction tank (toxic gas oxidative decomposition tank) 12 ... Porous body 13 ... Adjusting solution 14 ... Spray pump 15 ... Spray nozzle 16 ... Circulation pump 17 ... Blower fan 18 ... Adjustment tank 19 ... Hydrogen peroxide addition tank 20 ... Alkali addition tank 21 ... Neutralization reaction product removal filter 22 ... Wash water drain removal 31 ... Gas cylinder 32 ... Flowmeter 33 ... Porous filter 34 ... Concentration measurement on inlet side Piping 35 ... Piping for concentration measurement on the outlet side
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4304024AJPH06142440A (en) | 1992-11-13 | 1992-11-13 | Oxidation treatment of gas containing harmful gas and device for the same |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4304024AJPH06142440A (en) | 1992-11-13 | 1992-11-13 | Oxidation treatment of gas containing harmful gas and device for the same |
| Publication Number | Publication Date |
|---|---|
| JPH06142440Atrue JPH06142440A (en) | 1994-05-24 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4304024AWithdrawnJPH06142440A (en) | 1992-11-13 | 1992-11-13 | Oxidation treatment of gas containing harmful gas and device for the same |
| Country | Link |
|---|---|
| JP (1) | JPH06142440A (en) |
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| KR20010098970A (en)* | 2001-06-02 | 2001-11-08 | 이동일 | Harmful material exclusion apparatus using activated carbon fiber and wet washing machine |
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| JP2005238074A (en)* | 2004-02-25 | 2005-09-08 | Chiyoda Corp | Regeneration method of activated carbon catalyst for flue gas desulfurization |
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| JP2009509757A (en)* | 2005-10-07 | 2009-03-12 | グループ カウンシル プロシド インコーポレイテッド | Method for reducing the formaldehyde content of gases |
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| WO2011152338A1 (en) | 2010-06-04 | 2011-12-08 | 株式会社昭和 | Decomposition/elimination method using a photocatalytic material |
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| JP2002053838A (en)* | 2000-08-09 | 2002-02-19 | Nankyou Efunika Kk | Composition for removing aldehyde |
| KR20020081940A (en)* | 2001-04-20 | 2002-10-30 | 조규만 | Method of nitric oxides reduction and soot treatment by using hydrogen peroxide solution, alcohol or hydrogen peroxide solution /alcohol mixture |
| KR20010098970A (en)* | 2001-06-02 | 2001-11-08 | 이동일 | Harmful material exclusion apparatus using activated carbon fiber and wet washing machine |
| US7776299B2 (en) | 2002-12-21 | 2010-08-17 | Haldor Topsøe A/S | Process for removal of SO2 from off-gases by reaction with H2O2 |
| JP2005238074A (en)* | 2004-02-25 | 2005-09-08 | Chiyoda Corp | Regeneration method of activated carbon catalyst for flue gas desulfurization |
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| JP2009509757A (en)* | 2005-10-07 | 2009-03-12 | グループ カウンシル プロシド インコーポレイテッド | Method for reducing the formaldehyde content of gases |
| EP1931450A4 (en)* | 2005-10-07 | 2011-05-18 | Groupe Conseil Procd Inc | Process for reducing the formaldehyde content of a gas |
| WO2011152338A1 (en) | 2010-06-04 | 2011-12-08 | 株式会社昭和 | Decomposition/elimination method using a photocatalytic material |
| US8597603B2 (en) | 2010-06-04 | 2013-12-03 | Showa Co., Ltd. | Decomposition/elimination method using a photocatalytic material |
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| CN106492587B (en)* | 2016-11-01 | 2020-06-16 | 杭州科技职业技术学院 | Waste gas purification treatment equipment for baking finish house of automobile repair factory |
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| CN108654364A (en)* | 2018-06-06 | 2018-10-16 | 青岛阿蒂特兰环保科技有限公司 | Remove the method and its product soil-repairing agent of volatile organic matter in air |
| CN108654364B (en)* | 2018-06-06 | 2020-02-07 | 青岛阿蒂特兰环保科技有限公司 | Method for removing volatile organic compounds in air and product soil remediation agent thereof |
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| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Withdrawal of application because of no request for examination | Free format text:JAPANESE INTERMEDIATE CODE: A300 Effective date:20000201 |