JPH07155611A - Catalyst and method for removing malodorous substance - Google Patents
Catalyst and method for removing malodorous substanceInfo
- Publication number
- JPH07155611A JPH07155611A JP5309312A JP30931293A JPH07155611A JP H07155611 A JPH07155611 A JP H07155611A JP 5309312 A JP5309312 A JP 5309312A JP 30931293 A JP30931293 A JP 30931293A JP H07155611 A JPH07155611 A JP H07155611A
- Authority
- JP
- Japan
- Prior art keywords
- catalyst
- malodorous
- silver
- malodorous substance
- zeolite
- 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
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は生活空間の気体中に含ま
れる悪臭物質、特にアセトアルデヒドの除去用の触媒と
除去方法に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a catalyst and a method for removing malodorous substances, especially acetaldehyde, contained in a gas in a living space.
【０００２】[0002]
【従来の技術】近年、温度，光，音等と共に、臭気につ
いても生活空間の快適な居住性が要望されている。生活
空間の気体中の悪臭物質は主に、調理器，生ゴミ，トイ
レ，煙草，家畜などから発生し、数ｐｐｍから数１０ｐ
ｐｍの低濃度である。悪臭防止法で定められている代表
的な悪臭物質は、メチルメルカプタン，硫化水素，硫化
メチル，二硫化メチル，スチレン，アセトアルデヒド，
トリメチルアミン及びアンモニア等であり、これ等の悪
臭物質の除去が要望されている。その中でもアセトアル
デヒドは特に除去困難な為、その除去方法の開発が切望
されている。2. Description of the Related Art In recent years, there has been a demand for comfortable living in a living space with respect to odor as well as temperature, light and sound. The malodorous substances in the gas in the living space are mainly generated from cookers, garbage, toilets, cigarettes, livestock, etc.
It is a low concentration of pm. Typical offensive odor substances specified by the Offensive Odor Control Law are methyl mercaptan, hydrogen sulfide, methyl sulfide, methyl disulfide, styrene, acetaldehyde,
Trimethylamine, ammonia, and the like, and removal of these malodorous substances is demanded. Among them, acetaldehyde is particularly difficult to remove, and thus development of a method for removing it is earnestly desired.
【０００３】これ等の悪臭物質の除去手段としては、吸
着法と酸化分解法が良く知られている。吸着法は悪臭物
質を活性炭などの吸着剤に吸着させて除去する方法であ
るが、吸着剤の再生が実際上困難な為、吸着剤の交換を
必要とする欠点がある。酸化分解法は悪臭物質を酸化
し、二酸化炭素や水等に分解して無臭化する方法であ
る。酸化分解法には酸化剤としてオゾンを用いる方法
と、オゾンを用いず空気中の酸素による方法がある。前
者のオゾン法では高電圧のオゾン発生装置が必要である
上、高濃度のオゾンを使用する為、脱臭処理後の排出ガ
ス中に微量でも人体に有害なオゾンが残留する危険があ
る。この為、オゾンを残留しないオゾン分解能の優れた
脱臭触媒が種々提案されている、未だこの問題を完全に
解決する触媒は無く、その探索は今日もなお続けられて
いる。As a means for removing these malodorous substances, an adsorption method and an oxidative decomposition method are well known. The adsorption method is a method of removing a malodorous substance by adsorbing it onto an adsorbent such as activated carbon, but it has a drawback that it is necessary to replace the adsorbent because regeneration of the adsorbent is practically difficult. The oxidative decomposition method is a method of oxidizing a malodorous substance and decomposing it into carbon dioxide, water or the like to deodorize it. The oxidative decomposition method includes a method using ozone as an oxidant and a method using oxygen in the air without using ozone. The former ozone method requires a high-voltage ozone generator, and uses high-concentration ozone, so there is a risk that ozone, which is harmful to the human body, remains in the exhaust gas after the deodorizing process even in a small amount. Therefore, various deodorizing catalysts having excellent ozone decomposing ability that do not leave ozone have been proposed, and there is no catalyst that completely solves this problem, and the search for them is still continued today.
【０００４】オゾンを用いず空気中の酸素による酸化分
解の方法は、残留オゾンの問題が無いのでより好ましい
方法であるが、この場合オゾン法の脱臭触媒よりも悪臭
物質分解能の一段と優れた脱臭触媒の使用が必要とな
る。従来から知られている白金系触媒は、満足できるよ
うな脱臭を行なうには３００℃程度の温度が必要であ
り、室温より約２００℃高い程度の比較的低温での完全
な脱臭は期待できない。現在、特に注目されている悪臭
物質は、タバコの煙りや油脂類の分解ガスに含まれるア
セトアルデヒドであり、その除去に低温で有効な触媒は
未だ見出されていない。低温活性の脱臭触媒として実用
化されているものには、酸化マンガンと酸化銅を主成分
とするホプカリット触媒があるが、この触媒は低温域に
於て湿分により急激に活性が低下するので、実際上低温
での使用は難しい。The method of oxidative decomposition using oxygen in the air without using ozone is a more preferable method because it does not have the problem of residual ozone. Need to be used. Conventionally known platinum-based catalysts require a temperature of about 300 ° C. for satisfactory deodorization, and complete deodorization at a relatively low temperature of about 200 ° C. higher than room temperature cannot be expected. At present, the malodorous substance that has been receiving particular attention is acetaldehyde contained in the smoke of cigarettes and the decomposition gas of oils and fats, and a catalyst effective for removing it at low temperatures has not yet been found. One that has been put into practical use as a low-temperature active deodorizing catalyst is a hopcalite catalyst containing manganese oxide and copper oxide as its main components, but since this catalyst rapidly decreases in activity at low temperatures due to moisture, Practically difficult to use at low temperature.
【０００５】従って、最近低温で高活性な脱臭触媒が提
案されている。例えば特開平４−３７１２２８号は、オ
ゾン等の有害物質を用いることなく、比較的低温で悪臭
成分を酸化除去できる金属酸化物及び金から成る触媒を
提案している。然し、この触媒は活性成分として高価な
金を使用する欠点があり、コスト低減の為の方策が検討
されている。Therefore, recently, a deodorizing catalyst which is highly active at low temperature has been proposed. For example, Japanese Patent Application Laid-Open No. 4-371228 proposes a catalyst composed of metal oxide and gold, which can oxidize and remove malodorous components at a relatively low temperature without using harmful substances such as ozone. However, this catalyst has a drawback that expensive gold is used as an active ingredient, and measures for cost reduction have been studied.
【０００６】[0006]
【発明が解決しようとする課題】前述したように、オゾ
ンを用いず空気中の酸素による悪臭物質の酸化分解法は
優れた脱臭法であるが、その確立の為には低温域に於て
高活性であり、しかも湿分などにより影響を受けない優
れた触媒が必要である。本発明はそのような触媒であっ
て、本発明が特に問題としているタバコの煙や油脂類の
分解ガスに含まれるアセトアルデヒドをも容易に分解除
去できる触媒を、安価に提供することを目的とする。As described above, the oxidative decomposition method of a malodorous substance by the oxygen in the air without using ozone is an excellent deodorizing method, but for its establishment, it is high in the low temperature range. There is a need for a good catalyst that is active and is not affected by moisture and the like. An object of the present invention is to provide such a catalyst at a low cost, which is capable of easily decomposing and removing acetaldehyde contained in decomposition gas of cigarette smoke and fats and oils, which is a particular problem of the present invention. .
【０００７】[0007]
【課題を解決するための手段】本発明者等は、オゾン等
の有害物質を酸化剤として用いなくても、比較的低温度
で悪臭物質特にアセトアルデヒドを完全に除去し且つ経
済的な悪臭除去触媒を見出す為鋭意研究を重ねた結果、
吸着性多孔質物質を主成分とする担体に活性種として銀
及び／又は銀化合物を担持した触媒が、オゾンを用いな
くとも空気中の酸素により低温度で悪臭物質を分解除去
することを見出し、本発明を完成するに至った。The present inventors have made it possible to completely remove malodorous substances, particularly acetaldehyde, at a relatively low temperature without using harmful substances such as ozone as an oxidizing agent, and to provide an economical malodorous catalyst. As a result of repeated studies to find out,
It has been found that a catalyst having silver and / or a silver compound as an active species supported on a carrier mainly composed of an adsorptive porous substance decomposes and removes a malodorous substance at low temperature by oxygen in the air without using ozone, The present invention has been completed.
【０００８】本発明は吸着性多孔質担体に銀及び／又は
銀化合物を担持して成ることを特徴とする悪臭物質除去
用触媒である。また、本発明はこのような触媒を用いた
悪臭物質除去方法である。The present invention is a malodorous substance-removing catalyst comprising an adsorbent porous carrier carrying silver and / or a silver compound. The present invention is also a method for removing a malodorous substance using such a catalyst.
【０００９】本発明に係る吸着性多孔質担体としては、
ゼオライト，アルミナ，シリカ，シリカ−アルミナ，チ
タニア等のセラミックス系担体又は活性炭系担体等が使
用できるが、性能面及びコスト面から、平均細孔径４Å
以上１５Å以下、好ましくは７Å以上１５Å以下の細孔
を有するゼオライト特に１３Ｘゼオライト、又は窒素吸
着法によるＢＥＴ比表面積が２００ｍ2 ／ｇ以上５００
ｍ2 ／ｇ以下、好ましくは３００ｍ2 ／ｇ以上４００ｍ
2 ／ｇ以下のγ−アルミナが特に好ましい。As the adsorptive porous carrier according to the present invention,
Ceramic-based carriers such as zeolite, alumina, silica, silica-alumina, and titania or activated carbon-based carriers can be used, but the average pore size is 4Å from the viewpoint of performance and cost.
Zeolite having pores of 15 Å or more, preferably 7 Å or more, preferably 15 Å or less, especially 13X zeolite, or BET specific surface area by nitrogen adsorption method of 200 m 2 / g or more and 500 or more
m 2 / g or less, preferably 300 m 2 / g or more and 400 m
Γ-alumina of 2 / g or less is particularly preferable.
【００１０】活性種として担体に担持させる銀及び／又
は銀化合物の原料としては、水溶性の銀化合物、例えば
酢酸銀，硝酸銀などが使用できる。銀の担持量は銀と吸
着性担体の合計量に対して０．１〜１０重量％が良い。As a raw material of silver and / or a silver compound supported on a carrier as an active species, a water-soluble silver compound such as silver acetate or silver nitrate can be used. The amount of silver supported is preferably 0.1 to 10% by weight based on the total amount of silver and the adsorptive carrier.
【００１１】本発明の触媒に第二成分として、マンガ
ン，鉄，コバルト，ニッケル，鉄等を加えても良い。こ
れらの成分を追加することによって、アセトアルデヒド
以外の悪臭成分の除去が一段と効果的となる。As the second component, manganese, iron, cobalt, nickel, iron or the like may be added to the catalyst of the present invention. By adding these components, the removal of malodorous components other than acetaldehyde becomes more effective.
【００１２】本発明の触媒の形状としては、球状，粒
状，ハニカム状，発泡体状，繊維状，布状，リング状
等、現在触媒として一般に使用されている全ての形状が
利用できる。ハニカム状触媒は悪臭ガスと本触媒の接触
が良く、脱臭効率も高まるので、特に好ましい。吸着性
多孔質物質特にゼオライト等をハニカム形状に成形する
場合、適当な有機又は無機バインダーの添加が望まし
い。As the shape of the catalyst of the present invention, all shapes which are generally used as catalysts at present, such as spherical shape, granular shape, honeycomb shape, foam shape, fiber shape, cloth shape and ring shape can be used. The honeycomb catalyst is particularly preferable because it makes good contact between the malodorous gas and the present catalyst and enhances the deodorizing efficiency. When forming an adsorptive porous material, particularly zeolite, into a honeycomb shape, it is desirable to add an appropriate organic or inorganic binder.
【００１３】本発明の触媒は上述の悪臭物質に対し有用
であるが、特にアセトアルデヒド等のアルデヒド類，ケ
トン類及び酢酸等のカルボン酸類に有用である。特にア
セトアルデヒドに対して優れた除去性能を示している。The catalyst of the present invention is useful for the above-mentioned malodorous substances, but is particularly useful for aldehydes such as acetaldehyde, ketones and carboxylic acids such as acetic acid. Especially, it shows excellent removal performance for acetaldehyde.
【００１４】本発明の触媒を用いて悪臭物質を除去する
には、本発明の触媒と悪臭物質を含むガスを０〜５００
℃程度の温度で接触させれば良い。ガス中の酸素濃度は
特に限定的でなく、悪臭成分を完全に酸化分解するため
の必要量以上の酸素が存在すれば良く、通常は空気中で
処理すれば良い。In order to remove a malodorous substance using the catalyst of the present invention, the catalyst of the present invention and a gas containing the malodorous substance are added in an amount of 0 to 500.
The contact may be made at a temperature of about ° C. The oxygen concentration in the gas is not particularly limited, and it suffices that oxygen is present in an amount more than necessary for completely oxidatively decomposing the malodorous component, and normally, the treatment may be performed in air.
【００１５】[0015]
【作用】本発明の作用は十分に解明されていないが、ゼ
オライト１３Ｘやγ−アルミナはカチオンによる静電引
力により吸着サイトに双極子モーメントの大きいアセト
ルデヒドを選択的に吸着する。吸着されたアセトアルデ
ヒドが吸着サイトから高分散に担持された銀化合物上に
移動し、活性化され、酸化分解され、空虚になった吸着
サイトは再びアセトアルデヒドを吸着し、分解し、永続
的に活性を失わず、脱臭効果が維持されると推測してい
る。Although the function of the present invention has not been sufficiently clarified, zeolite 13X and γ-alumina selectively adsorb acetordehyde having a large dipole moment on the adsorption site by electrostatic attraction by cations. The adsorbed acetaldehyde moves from the adsorption site to the highly dispersed supported silver compound, is activated, is oxidatively decomposed, and the empty adsorption site adsorbs acetaldehyde again, decomposes, and becomes permanently active. It is assumed that the deodorizing effect is maintained without loss.
【００１６】[0016]
【実施例】以下に実施例につき本発明をさらに詳細に説
明するが、本発明がこれらの実施例にのみ限定されると
解されるべきではない。The present invention will be described in more detail below with reference to examples, but it should not be construed that the present invention is limited to these examples.
【００１７】〔実施例１〕ゼオライト１３Ｘ担体の調製 粉末状ゼオライト１３Ｘに所定の配合比でシリカ又はア
ルミナなどの無機バインダーを加えて混合し、純水を添
加して混練を行なって、ハニカム状に押出し成形し、３
００℃にて焼成し担体とした。ハニカムのセルサイズは
２００セル／６．４５ｃｍ2 （１平方インチ）とした。
平均細孔径は１０Å、ＢＥＴ比表面積は３５０ｍ2 ／ｇ
とした。[Example 1] Preparation of zeolite 13X carrier Powdered zeolite 13X was mixed with an inorganic binder such as silica or alumina at a predetermined mixing ratio, pure water was added and kneading was performed to form a honeycomb shape. Extruded, 3
It was calcined at 00 ° C to obtain a carrier. The cell size of the honeycomb was 200 cells / 6.45 cm 2 (1 square inch).
Average pore size is 10Å, BET specific surface area is 350m 2 / g
And
【００１８】銀触媒の担持 前述のゼオライト１３Ｘハニカム担体の容積に対し、銀
が３ｇ／ｌの含有量になる様に純水を用いて酢酸銀の水
溶液を調製した。８０℃に加熱したこの酢酸銀水溶液に
前述のハニカム担体を含浸した後、３００℃の焼成を行
なって銀担持ゼオライト１３Ｘ触媒を調製した。Support of silver catalyst An aqueous solution of silver acetate was prepared by using pure water so that the content of silver was 3 g / l with respect to the volume of the above zeolite 13X honeycomb carrier. This silver acetate aqueous solution heated to 80 ° C. was impregnated with the above-mentioned honeycomb carrier and then calcined at 300 ° C. to prepare a silver-supported zeolite 13X catalyst.
【００１９】アルミナ担体の調製 粉末状γ−アルミナに所定の配合比で、シリカ又はアル
ミナなどの無機バインダーを加えて混合し、純水を添加
して混練を行なって、ハニカム状に押出し成形し、３０
０℃にて焼成して担体とした。ハニカムのセルサイズは
２００セル／６．４５ｃｍ2 （１平方インチ）とした。
平均細孔径は５０Å、ＢＥＴ比表面積は３００ｍ2 ／ｇ
とした。 Preparation of Alumina Carrier An inorganic binder such as silica or alumina is added to and mixed with powdery γ-alumina at a predetermined mixing ratio, pure water is added and kneading is performed, and extrusion molding is performed into a honeycomb shape. Thirty
It was calcined at 0 ° C. to obtain a carrier. The cell size of the honeycomb was 200 cells / 6.45 cm 2 (1 square inch).
Average pore size is 50Å, BET specific surface area is 300m 2 / g
And
【００２０】銀触媒の担持 前述のアルミナハニカム担体の容積に対し、銀が３ｇ／
ｌの含有量になる様に純水を用いて酢酸銀の水溶液を調
製した。８０℃に加熱したこの酢酸銀水溶液に前述のハ
ニカム担体を含浸した後、３００℃の焼成を行なって銀
担持γ−アルミナ触媒を調製した。Loading of silver catalyst 3 g / g of silver was added to the volume of the above-mentioned alumina honeycomb carrier.
An aqueous solution of silver acetate was prepared using pure water so that the content was 1 l. This silver acetate aqueous solution heated to 80 ° C. was impregnated with the above-mentioned honeycomb carrier and then calcined at 300 ° C. to prepare a silver-supported γ-alumina catalyst.
【００２１】〔比較例１〕粉末状モレキュラーシーブ３
Ａハニカム担体を用いた以外は実施例１と同様にして、
銀担持モレキュラーシーブ３Ａハニカム触媒を調製し
た。[Comparative Example 1] Powdery molecular sieve 3
A, except that the honeycomb carrier was used,
A silver-supported molecular sieve 3A honeycomb catalyst was prepared.
【００２２】〔比較例２〕酢酸銀の代りに酢酸マンガン
を用いた以外は実施例１と同様にして、マンガン担持ゼ
オライト１３Ｘ触媒を調製した。Comparative Example 2 A manganese-supporting zeolite 13X catalyst was prepared in the same manner as in Example 1 except that manganese acetate was used instead of silver acetate.
【００２３】〔比較例３〕酢酸銀の代りに酢酸カリウム
を用いた以外は実施例１と同様にして、カリウム担持ゼ
オライト１３Ｘ触媒を調製した。Comparative Example 3 A potassium-supported zeolite 13X catalyst was prepared in the same manner as in Example 1 except that potassium acetate was used instead of silver acetate.
【００２４】〔比較例４〕酢酸銀の代りに酢酸銅を用い
た以外は実施例１と同様にして、銅担持ゼオライト１３
Ｘ触媒を調製した。[Comparative Example 4] Copper-supporting zeolite 13 was prepared in the same manner as in Example 1 except that copper acetate was used instead of silver acetate.
The X catalyst was prepared.
【００２５】〔比較例５〕酢酸銀の代りに塩化パラジウ
ムを用いた以外は実施例１と同様にして、パラジウム担
持ゼオライト１３Ｘ触媒を調製した。Comparative Example 5 A palladium-supported zeolite 13X catalyst was prepared in the same manner as in Example 1 except that palladium chloride was used instead of silver acetate.
【００２６】〔比較例６〕酢酸銀の代りに塩化白金酸を
用いた以外は実施例１と同様にして、白金担持ゼオライ
ト１３Ｘ触媒を調製した。Comparative Example 6 A platinum-supported zeolite 13X catalyst was prepared in the same manner as in Example 1 except that chloroplatinic acid was used instead of silver acetate.
【００２７】〔比較例７〕活性成分は何も使用せずゼオ
ライト１３Ｘハニカム担体をそのまま触媒として使用し
た。Comparative Example 7 Zeolite 13X honeycomb carrier was directly used as a catalyst without using any active ingredient.
【００２８】悪臭除去試験 実施例１〜２及び比較例１〜７の触媒を用いて、流入空
気中のアセトアルデヒドの除去試験を実施した。試験方
法は下記の通りであった。 Malodor Removal Test Using the catalysts of Examples 1 and 2 and Comparative Examples 1 to 7, a test of removing acetaldehyde in the inflowing air was carried out. The test method was as follows.
【００２９】試験方法 試験ガス…アセトアルデヒド ５０ｐｐｍ／空気バラン
スガス 触媒充填方法…上記触媒５ｍｌをガラス管に充填した。
ガス空間速度ＳＶ＝１６０，０００ｈｒ-1で験ガスを流
した。触媒充填したガラス管は２０℃に保持した。 アセトアルデヒド分析…触媒層の入り口及び出口の濃度
をＦＩＤ検知方式ガスクロマトグラフ法により分析し
た。出口の濃度は１０分毎に９０分間までの経時変化を
測定した。 Test method Test gas: Acetaldehyde 50 ppm / air balance gas Catalyst filling method: A glass tube was filled with 5 ml of the above catalyst.
The test gas was flown at a gas space velocity SV = 160,000 hr −1 . The glass tube filled with the catalyst was kept at 20 ° C. Acetaldehyde analysis: Concentrations at the inlet and outlet of the catalyst layer were analyzed by FID detection gas chromatography. The concentration at the outlet was measured every 10 minutes with the lapse of time up to 90 minutes.
【００３０】計算式 浄化率＝（入口ガス濃度−出口ガス濃度）÷入口ガス濃
度×１００（％） 試験結果を表１に示した。 Calculation formula Purification rate = (inlet gas concentration-outlet gas concentration) / inlet gas concentration × 100 (%) The test results are shown in Table 1.
【００３１】[0031]
【表１】 [Table 1]
【００３２】表１から明らかなように、銀担持ゼオライ
ト１３Ｘ触媒と銀担持γ−アルミナハニカム触媒は、他
の活性種に比べ良好なアセトアルデヒドの脱臭性能を示
した。モレキュラーシーブ３Ａ（平均細孔径３Å）ハニ
カム担体の銀触媒（比較例１）は浄化率が良くなかっ
た。As is clear from Table 1, the silver-supported zeolite 13X catalyst and the silver-supported γ-alumina honeycomb catalyst exhibited better deodorizing performance of acetaldehyde than other active species. The purification rate of the silver catalyst (Comparative Example 1) of the molecular sieve 3A (average pore size 3Å) honeycomb carrier was not good.
【００３３】[0033]
【発明の効果】本発明の触媒によれば、オゾン等の有害
物質を用いることなく、空気中の酸素により比較的低温
でアセトアルデヒド等の悪臭成分を容易に二酸化炭素と
水などに酸化分解して除去できる。この為、例えば事業
用及び家庭用に利用でき、調理器具，暖房器具，空気清
浄器具にも利用できる。EFFECTS OF THE INVENTION According to the catalyst of the present invention, odorous components such as acetaldehyde can be easily oxidized and decomposed into carbon dioxide and water at a relatively low temperature by oxygen in the air without using harmful substances such as ozone. Can be removed. Therefore, it can be used, for example, for business and home use, and can also be used for cooking appliances, heating appliances, and air cleaning appliances.
Claims (9)
物を担持して成ることを特徴とする悪臭物質除去用触
媒。1. A catalyst for removing a malodorous substance, which comprises an adsorbent porous carrier carrying silver and / or a silver compound.
はアルミナより成る請求項１記載の悪臭物質除去用触
媒。2. The catalyst for removing malodorous substances according to claim 1, wherein the adsorptive porous carrier comprises zeolite and / or alumina.
上１５Å以下のゼオライト又はＢＥＴ比表面積が２００
ｍ2 ／ｇ以上５００ｍ2 ／ｇ以下のアルミナである請求
項２記載の悪臭物質除去用触媒。3. An adsorbent porous carrier having a mean pore size of 4 Å or more and 15 Å or less or a BET specific surface area of 200.
m 2 / g or more 500 meters 2 / g or less of claim 2, wherein the malodorous substance removing catalyst is alumina.
求項２又は３記載の悪臭物質除去用触媒。4. The catalyst for removing malodorous substances according to claim 2 or 3, wherein the zeolite is 13X zeolite.
ｇ以上４００ｍ2 ／ｇ以下のアルミナである請求項２記
載の悪臭物質除去用触媒。5. The alumina has a BET specific surface area of 300 m 2 /
The catalyst for removing a malodorous substance according to claim 2, which is an alumina of g or more and 400 m 2 / g or less.
求項１，２，３，４又は５記載の悪臭物質除去用触媒。6. The malodorous substance removing catalyst according to claim 1, 2, 3, 4 or 5, wherein the adsorptive porous carrier is in the form of a honeycomb.
悪臭物質除去用触媒を用いる悪臭物質除去方法。7. A method for removing a malodorous substance using the catalyst for removing a malodorous substance according to claim 1, 2, 3, 4, 5 or 6.
項７記載の悪臭物質除去方法。8. The method for removing a malodorous substance according to claim 7, wherein oxygen in the air is used as the oxidant.
項７又は８記載の悪臭物質除去方法。9. The malodorous substance removing method according to claim 7, wherein the malodorous substance is acetaldehyde.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5309312A JPH07155611A (en) | 1993-12-09 | 1993-12-09 | Catalyst and method for removing malodorous substance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5309312A JPH07155611A (en) | 1993-12-09 | 1993-12-09 | Catalyst and method for removing malodorous substance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH07155611A true JPH07155611A (en) | 1995-06-20 |
Family
ID=17991503
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5309312A Pending JPH07155611A (en) | 1993-12-09 | 1993-12-09 | Catalyst and method for removing malodorous substance |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07155611A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6042797A (en) * | 1997-07-02 | 2000-03-28 | Tosoh Corporation | Adsorbent for ethylene, method for adsorbing and removing ethylene and method for purifying an exhaust gas |
| JP2007175597A (en) * | 2005-12-27 | 2007-07-12 | Toyobo Co Ltd | Aldehydes gas removing agent |
| JP2012196676A (en) * | 2012-06-08 | 2012-10-18 | Toyota Central R&D Labs Inc | Method of manufacturing material for removal of sulfuric gas |
| KR101349973B1 (en) * | 2011-08-03 | 2014-01-23 | 주식회사 그린솔루스 | Apparatus for control of gaseous hydrogen sulfide |
| KR101349974B1 (en) * | 2011-08-03 | 2014-01-23 | 주식회사 그린솔루스 | Method for control of gaseous hydrogen sulfide |
| JP2014511272A (en) * | 2011-02-28 | 2014-05-15 | コーニング インコーポレイテッド | Articles for capturing carbon dioxide |
| CN115551634A (en) * | 2020-05-15 | 2022-12-30 | 日挥通用株式会社 | Deodorizing catalyst for refrigerator and deodorizing material for refrigerator using the same |
-
1993
- 1993-12-09 JP JP5309312A patent/JPH07155611A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6309616B1 (en) | 1977-11-26 | 2001-10-30 | Tosoh Corporation | Method for adsorbing and removing ethylene and method for purifying an exhaust gas |
| US6042797A (en) * | 1997-07-02 | 2000-03-28 | Tosoh Corporation | Adsorbent for ethylene, method for adsorbing and removing ethylene and method for purifying an exhaust gas |
| US6103208A (en) * | 1997-07-02 | 2000-08-15 | Tosoh Corporation | Adsorbent for ethylene, method for adsorbing and removing ethylene and method for purifying an exhaust gas |
| JP2007175597A (en) * | 2005-12-27 | 2007-07-12 | Toyobo Co Ltd | Aldehydes gas removing agent |
| JP2014511272A (en) * | 2011-02-28 | 2014-05-15 | コーニング インコーポレイテッド | Articles for capturing carbon dioxide |
| JP2016187806A (en) * | 2011-02-28 | 2016-11-04 | コーニング インコーポレイテッド | Article for capturing carbon dioxide |
| KR101349973B1 (en) * | 2011-08-03 | 2014-01-23 | 주식회사 그린솔루스 | Apparatus for control of gaseous hydrogen sulfide |
| KR101349974B1 (en) * | 2011-08-03 | 2014-01-23 | 주식회사 그린솔루스 | Method for control of gaseous hydrogen sulfide |
| JP2012196676A (en) * | 2012-06-08 | 2012-10-18 | Toyota Central R&D Labs Inc | Method of manufacturing material for removal of sulfuric gas |
| CN115551634A (en) * | 2020-05-15 | 2022-12-30 | 日挥通用株式会社 | Deodorizing catalyst for refrigerator and deodorizing material for refrigerator using the same |
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