JPH0584441A - Deodorizing catalyst and apparatus using that - Google Patents
Deodorizing catalyst and apparatus using thatInfo
- Publication number
- JPH0584441A JPH0584441A JP3273593A JP27359391A JPH0584441A JP H0584441 A JPH0584441 A JP H0584441A JP 3273593 A JP3273593 A JP 3273593A JP 27359391 A JP27359391 A JP 27359391A JP H0584441 A JPH0584441 A JP H0584441A
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- JP
- Japan
- Prior art keywords
- air
- catalyst
- oxide
- iron
- deodorizing catalyst
- 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.)
- Granted
Links
Landscapes
- Catalysts (AREA)
- Central Air Conditioning (AREA)
- Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
- Air Filters, Heat-Exchange Apparatuses, And Housings Of Air-Conditioning Units (AREA)
- Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
- Food Preservation Except Freezing, Refrigeration, And Drying (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、新規な活性成分を有す
る脱臭触媒にかかり、特に室温以下で家電住宅設備から
発生する空気中の不快臭気成分を含むガスを酸化分解す
るための脱臭触媒に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a deodorizing catalyst having a novel active ingredient, and more particularly to a deodorizing catalyst for oxidatively decomposing gas containing unpleasant odorous components in the air generated from home electric appliances and housing equipment at room temperature or below. ..
【０００２】[0002]
【従来の技術】空気中に含まれる臭気成分を除去するた
めの脱臭触媒及び脱臭方法としては例えば、活性炭、シ
リカ、ゼオライト等の多孔質物質或いはこれを薬品で化
学処理して用いる方法などが提案されている。また、特
開昭６１−８１１６号公報に記載されたもののように、
Ａｌ2 Ｏ3 ，ＳｉＯ2 ，ＺｒＯ2 から選ばれた酸化物と
Ｃｕ，Ｃｒ，Ｆｅ，Ｖ，Ｗ，Ｍｎ，Ｎｉ，Ｃｏ，Ｍｏ，
Ｐｂから選ばれた酸化物と白金、バラジゥム等の白金族
元素を含有せしめてなる酸化物触媒がアセトアルデヒド
の脱臭に有効であることがしられている。上記従来技術
において、アセトアルデヒド以外の臭気及び低温、高空
間速度に対しては脱臭効率に問題があった。2. Description of the Related Art As a deodorizing catalyst and a deodorizing method for removing odorous components contained in the air, for example, a porous substance such as activated carbon, silica, zeolite or a method of chemically treating it with a chemical substance and the like is proposed. Has been done. Further, as described in JP-A-61-8116,
An oxide selected from Al 2 O 3 , SiO 2 , ZrO 2 and Cu, Cr, Fe, V, W, Mn, Ni, Co, Mo,
It is known that an oxide catalyst containing an oxide selected from Pb and a platinum group element such as platinum or palladium is effective for deodorizing acetaldehyde. In the above-mentioned prior art, there is a problem in deodorization efficiency with respect to odors other than acetaldehyde, low temperature, and high space velocity.
【０００３】[0003]
【発明が解決しようとする課題】本発明の目的は、上記
従来技術の脱臭触媒及び脱臭方法における問題点を解決
し、特に室内で発生する多種類の臭気成分を含むガスを
室温以下で酸化或いは分解する脱臭触媒を提供する事に
ある。SUMMARY OF THE INVENTION The object of the present invention is to solve the above-mentioned problems in the conventional deodorizing catalysts and deodorizing methods, and in particular to oxidize a gas containing many kinds of odorous components at room temperature or below. The purpose is to provide a deodorizing catalyst that decomposes.
【０００４】[0004]
【課題を解決するための手段】上記目的を達成するため
に、本発明では、空気中に含有する臭気成分をを酸素の
存在下で室温以下で酸化分解して無臭化するための触媒
であって、酸化物担体に担持された活性成分として、鉄
の酸化物とＭｎＯ2 ，ＮｉＯ，ＣｕＯ，Ｃｏ3 Ｏ4 ，Ｃ
ｅＯ2 ，ＰｔＯ及びＰｄＯから選ばれた一種以上の酸化
物との混合酸化物及び／又は化合物の形態で有し、鉄の
原子価が３価の酸化物で存在することを特徴とする脱臭
触媒としたものである。上記脱臭触媒において、鉄の酸
化物とＭｎＯ2 ，ＮｉＯ，ＣｕＯ，Ｃｏ3 Ｏ4 ，ＣｅＯ
2，ＰｔＯ及びＰｄＯから選ばれた一種以上の酸化物と
の原子比が９９．５：０．５〜５０：５０の割合で含む
のがよく、また担体上に担持される活性成分である前記
の混合酸化物の担持量は、触媒単位重量あたり１〜３０
％の範囲であることが望ましい。この範囲において触媒
の活性が高くなる。In order to achieve the above object, the present invention provides a catalyst for deodorizing an odorous component contained in air by oxidizing and decomposing it in the presence of oxygen at room temperature or below. As an active ingredient supported on the oxide carrier, iron oxide and MnO 2 , NiO, CuO, Co 3 O 4 , C
A deodorizing catalyst having the form of a mixed oxide and / or a compound with one or more oxides selected from eO 2 , PtO and PdO, and being present as an oxide having a trivalent iron valence. It is what In the above deodorizing catalyst, iron oxide and MnO 2 , NiO, CuO, Co 3 O 4 , CeO
2 , the atomic ratio with one or more oxides selected from PtO and PdO is preferably 99.5: 0.5 to 50:50, and the active ingredient supported on a carrier is The supported amount of the mixed oxide is 1 to 30 per unit weight of the catalyst.
It is preferably in the range of%. In this range, the activity of the catalyst becomes high.
【０００５】上記触媒において、使用される担体として
は、アルミナ、シリカ、チタニア、ゼオライト、コージ
ェライト、モルデナイト等の比表面積２０〜１０００ｍ
2 ／ｇの範囲の担体が好ましい。また、該酸化分解触媒
は担体上にコートしても良いし、直接塩の溶液に浸漬し
ても良い。これらの基材としてはハニカム状、粒状、板
状、金網状等があるが特に限定されない。本発明の脱臭
触媒を調製する手段としては担体に通常の含浸、浸漬法
或いは沈殿法で調製できる。含浸、浸漬法では、鉄の塩
の溶液とＭｎＯ2 ，ＮｉＯ，ＣｕＯ，Ｃｏ3 Ｏ4 ，Ｃｅ
Ｏ2 ，ＰｔＯ、ＰｄＯの塩の溶液とを混合して含浸して
も良いし、鉄の塩の溶液を含浸後、次いで、ＭｎＯ2 ，
ＮｉＯ，ＣｕＯ，Ｃｏ3 Ｏ4 ，ＣｅＯ2 ，ＰｔＯ、Ｐｄ
Ｏの塩の溶液を含浸する方法、ＭｎＯ2 ，ＮｉＯ，Ｃｕ
Ｏ，Ｃｏ3 Ｏ4 ，ＣｅＯ2 ，ＰｔＯ、ＰｄＯの塩の溶液
を含浸後、次いで、鉄の塩の溶液を含浸する方法がある
が、特に限定されない。In the above catalyst, the carrier used is alumina, silica, titania, zeolite, cordierite, mordenite, etc., having a specific surface area of 20 to 1000 m.
Carriers in the range of 2 / g are preferred. The oxidative decomposition catalyst may be coated on a carrier or may be directly immersed in a salt solution. Examples of these base materials include a honeycomb shape, a granular shape, a plate shape, and a wire mesh shape, but are not particularly limited. As a means for preparing the deodorizing catalyst of the present invention, the carrier can be prepared by an ordinary impregnation, dipping method or precipitation method. In the impregnation and dipping method, a solution of iron salt and MnO 2 , NiO, CuO, Co 3 O 4 , Ce is used.
O 2, PtO, may be impregnated by mixing a solution of a salt of PdO, after impregnated with a solution of iron salt and then, MnO 2,
NiO, CuO, Co 3 O 4 , CeO 2, PtO, Pd
Method of impregnating a salt solution of O, MnO 2 , NiO, Cu
There is a method of impregnating a solution of a salt of O, Co 3 O 4 , CeO 2 , PtO, or PdO and then impregnating a solution of an iron salt, but not limited thereto.
【０００６】また、沈殿法では鉄の塩の溶液とＭｎ
Ｏ2 ，ＮｉＯ，ＣｕＯ，Ｃｏ3 Ｏ4 ，ＣｅＯ2 ，Ｐｔ
Ｏ、ＰｄＯの塩の溶液の混合溶液から沈殿剤の炭酸カリ
ウム、炭酸ソーダ、可性ソーダ、水酸化カリウム等のア
ルカリによって、沈殿させる。塩の形態は硝酸塩が好ま
しい。ＰｔＯの場合、硝酸塩がないので、アミン錯体溶
液を用いるのが好ましい。得られた沈殿物を乾燥、３０
０℃以下で焼成してＦｅ2 Ｏ3 ，Ｆｅ3 Ｏ4 ，及びＭｎ
Ｏ2 ，ＮｉＯ，ＣｕＯ，Ｃｏ3 Ｏ4 ，ＣｅＯ2 ，Ｐｔ
Ｏ、ＰｄＯの酸化物を生成し、次いで、担体上にコート
することが望ましい。本発明で得られる脱臭触媒は室温
及びそれ以下の冷気状態の温度で使用するのに適する。
また、本発明の触媒は該触媒の存在下、室温以下の温度
範囲において、硫黄化合物、窒素化合物及び有機化合物
からなる臭気成分の酸化反応を行う触媒として使用でき
る。特に、酸化反応を利用した空気清浄器、空気調節
器、冷蔵庫、洗面所、トイレ、自動車内、室内等であ
る。Further, in the precipitation method, a solution of iron salt and Mn are used.
O 2 , NiO, CuO, Co 3 O 4 , CeO 2 , Pt
Precipitation is performed from a mixed solution of O and PdO salt solutions with an alkali such as a precipitating agent such as potassium carbonate, sodium carbonate, caustic soda, or potassium hydroxide. The salt form is preferably nitrate. In the case of PtO, since there is no nitrate, it is preferable to use an amine complex solution. The precipitate obtained is dried, 30
Fe 2 O 3 , Fe 3 O 4 , and Mn are fired at 0 ° C. or below.
O 2 , NiO, CuO, Co 3 O 4 , CeO 2 , Pt
It is desirable to produce O, PdO oxides and then coat them on a support. The deodorizing catalyst obtained according to the present invention is suitable for use at room temperature and below cold temperature.
Further, the catalyst of the present invention can be used as a catalyst for oxidizing an odorous component composed of a sulfur compound, a nitrogen compound and an organic compound in the temperature range of room temperature or lower in the presence of the catalyst. In particular, it is an air purifier using an oxidation reaction, an air conditioner, a refrigerator, a washroom, a toilet, a car, a room or the like.
【０００７】本発明の脱臭触媒を用いた応用機器とし
て、例えば、臭気成分を含有する空気を取り入れる吸入
口と貫流ファンと吸入した空気を排気する排気口を具備
する空気清浄器において、吸入口と貫流ファンの空間
に、上記脱臭触媒を含む触媒層を備えて脱臭できる空気
清浄器が得られる。また、臭気成分を含有する空気を取
り入れる吸入口と、取り入れた空気を冷，暖房する熱交
換器と冷，暖房した空気を吸引，排気する貫流ファンと
排気口を具備した空調機器において、熱交換器の前段又
は後段に、前記本発明の脱臭触媒を含む触媒層を設ける
ことにより脱臭できる空調機器が得られ、さらに冷気を
循環する冷凍機器において、冷凍空間に、上記と同様に
触媒層を設けることにより冷凍機器内の脱臭ができる。As an applied device using the deodorizing catalyst of the present invention, for example, in an air purifier equipped with an inlet for taking in air containing an odor component, a cross-flow fan and an outlet for exhausting the taken air, An air purifier capable of deodorizing is obtained by providing the catalyst layer containing the above deodorizing catalyst in the space of the once-through fan. In addition, heat exchange is performed in an air conditioner equipped with an intake port for taking in air containing odorous components, a heat exchanger for cooling and heating the taken-in air, a cross-flow fan for sucking and exhausting the cooled and heated air, and an exhaust port. An air conditioner capable of deodorizing can be obtained by providing a catalyst layer containing the deodorizing catalyst of the present invention in the front stage or the rear stage of the vessel, and further, in a refrigerating device that circulates cool air, a catalyst layer is provided in the refrigerating space in the same manner as above. This allows deodorization inside the refrigeration equipment.
【０００８】[0008]
【作用】以上述べたように、本発明の脱臭触媒によれ
ば、室温以下の温度範囲において、空気中の臭気成分は
室温で活性化された触媒表面により、吸着、酸化分解さ
れ無臭化される。As described above, according to the deodorizing catalyst of the present invention, in the temperature range below room temperature, the odorous component in the air is adsorbed, oxidatively decomposed and deodorized by the catalyst surface activated at room temperature. ..
【０００９】[0009]
【実施例】以下に本発明を実施例により具体的に説明す
るが、本発明はこれらの実施例に何ら限定されるもので
はない。 実施例１ 硝酸第一鉄〔Ｆｅ（ＮＯ3 ）2 ９Ｈ2 Ｏ〕４３ｇと硝酸
マンガン〔Ｍｎ（ＮＯ3 ）2 ６Ｈ2 Ｏ〕３０．８ｇを混
合し、５０ｍｌの蒸留水に溶解する。この溶液中に横１
０ｍｍ、縦１０ｍｍ、高さ２０ｍｍのハニカム担体（ア
ルミナ）を浸漬する。次いで、３００℃で２時間予備焼
成し、再び、混合溶液中に浸漬した後は最終的に３００
℃で２時間焼成して完成触媒を得た。この触媒は酸化物
状態でＦｅ2 Ｏ3 −ＭｎＯ2 −Ａｌ2 Ｏ3 となり、Ｆｅ
／Ｍｎの原子比が５０／５０である。EXAMPLES The present invention will now be described in detail with reference to examples, but the present invention is not limited to these examples. Example 1 43 g of ferrous nitrate [Fe (NO 3 ) 2 9H 2 O] and 30.8 g of manganese nitrate [Mn (NO 3 ) 2 6H 2 O] are mixed and dissolved in 50 ml of distilled water. Horizontal 1 in this solution
A honeycomb carrier (alumina) having a length of 0 mm, a length of 10 mm, and a height of 20 mm is immersed. Then, pre-fire at 300 ° C. for 2 hours, and finally after immersing in the mixed solution,
It was calcined at ℃ for 2 hours to obtain a finished catalyst. This catalyst becomes Fe 2 O 3 —MnO 2 —Al 2 O 3 in the oxide state,
The atomic ratio of / Mn is 50/50.
【００１０】実施例２ 硝酸第一鉄〔Ｆｅ（ＮＯ3 ）2 ９Ｈ2 Ｏ〕４３ｇと硝酸
銅〔Ｃｕ（ＮＯ3 ）３Ｈ2 Ｏ〕２６ｇを混合し、５０ｍ
ｌの蒸留水に溶解する。以下の調製工程は実施例１と同
じである。この触媒は酸化物状態でＦｅ2 Ｏ3 −ＣｕＯ
−Ａｌ2 Ｏ3 となり、Ｆｅ／Ｃｕの原子比で５０／５０
である。Example 2 43 g of ferrous nitrate [Fe (NO 3 ) 2 9H 2 O] and 26 g of copper nitrate [Cu (NO 3 ) 3H 2 O] were mixed to obtain 50 m.
Dissolve in 1 liter of distilled water. The following preparation steps are the same as in Example 1. This catalyst is Fe 2 O 3 -CuO in the oxide state.
-Al 2 O 3 and the atomic ratio of Fe / Cu is 50/50
Is.
【００１１】実施例３ 硝酸第一鉄〔Ｆｅ（ＮＯ3 ）2 ９Ｈ2 Ｏ〕４３ｇと硝酸
コバルト〔Ｃｏ（ＮＯ3 ）2 ６Ｈ2 Ｏ〕３１ｇを混合
し、５０ｍｌの蒸留水に溶解する。以下の調製工程は実
施例１と同じである。この触媒は酸化物状態でＦｅ2 Ｏ
3 −Ｃｏ3 Ｏ4 −Ａｌ2 Ｏ3 となり、Ｆｅ／Ｃｏの原子
比で５０／５０である。Example 3 43 g of ferrous nitrate [Fe (NO 3 ) 2 9H 2 O] and 31 g of cobalt nitrate [Co (NO 3 ) 2 6H 2 O] were mixed and dissolved in 50 ml of distilled water. The following preparation steps are the same as in Example 1. This catalyst is Fe 2 O in the oxide state.
3 -Co 3 O 4 -Al 2 O 3 , and the 50/50 atomic ratio of Fe / Co.
【００１２】実施例４ 硝酸第一鉄〔Ｆｅ（ＮＯ3 ）2 ９Ｈ2 Ｏ〕４３ｇと硝酸
ニッケル〔Ｎｉ（ＮＯ3 ）2 ６Ｈ2 Ｏ〕３１ｇを混合
し、５０ｍｌの蒸留水に溶解する。以下の調製工程は実
施例１と同じである。この触媒は酸化物状態でＦｅ2 Ｏ
3 −ＮｉＯ−Ａｌ2 Ｏ3 となり、Ｆｅ／Ｎｉの原子比で
５０／５０である。Example 4 43 g of ferrous nitrate [Fe (NO 3 ) 2 9H 2 O] and 31 g of nickel nitrate [Ni (NO 3 ) 2 6H 2 O] were mixed and dissolved in 50 ml of distilled water. The following preparation steps are the same as in Example 1. This catalyst is Fe 2 O in the oxide state.
3 -NiO-Al 2 O 3, and the 50/50 atomic ratio of Fe / Ni.
【００１３】実施例５ 硝酸第一鉄〔Ｆｅ（ＮＯ3 ）2 ９Ｈ2 Ｏ〕４３ｇと硝酸
セリウム〔Ｃｅ（ＮＯ3 ）3 ６Ｈ2 Ｏ〕４６．４ｇを混
合し、５０ｍｌの蒸留水に溶解する。以下の調製工程は
実施例１と同じである。この触媒は酸化物状態でＦｅ2
Ｏ3 −ＣｅＯ2 −Ａｌ2 Ｏ3 となり、Ｆｅ／Ｃｅの原子
比で５０／５０である。Example 5 43 g of ferrous nitrate [Fe (NO 3 ) 2 9H 2 O] and 46.4 g of cerium nitrate [Ce (NO 3 ) 3 6H 2 O] were mixed and dissolved in 50 ml of distilled water. .. The following preparation steps are the same as in Example 1. The catalyst is Fe 2
O 3 -CeO 2 -Al 2 O 3, and the 50/50 atomic ratio of Fe / Ce.
【００１４】実施例６ 硝酸第一鉄〔Ｆｅ（ＮＯ3 ）2 ９Ｈ2 Ｏ〕４３ｇと塩化
白金酸溶液０．１１ｇを混合し、５０ｍｌの蒸留水に溶
解する。調製工程は実施例１と同じであるが、触媒の焼
成温度を５００℃で２時間焼成して完成触媒を得た。こ
の触媒は酸化物状態でＦｅ2 Ｏ3 −ＰｔＯ−Ａｌ2 Ｏ3
となり、Ｆｅ／Ｐｔの原子比が９９．５／０．５であ
る。Example 6 43 g of ferrous nitrate [Fe (NO 3 ) 2 9H 2 O] and 0.11 g of chloroplatinic acid solution are mixed and dissolved in 50 ml of distilled water. The preparation process was the same as in Example 1, but the catalyst was calcined at 500 ° C. for 2 hours to obtain a finished catalyst. This catalyst is Fe 2 O 3 -PtO-Al 2 O 3 in the oxide state.
And the atomic ratio of Fe / Pt is 99.5 / 0.5.
【００１５】実施例７ 硝酸第一鉄〔Ｆｅ（ＮＯ3 ）2 ９Ｈ2 Ｏ〕４３ｇと硝酸
パラジュウム溶液０．２ｇを混合し、５０ｍｌの蒸留水
に溶解する。以下の調製工程は実施例６と同じである。
この触媒は酸化物状態でＦｅ2 Ｏ3 −ＰｄＯ−Ａｌ2 Ｏ
3 となり、Ｆｅ／Ｐｄの原子比で９９．５／０．５であ
る。Example 7 43 g of ferrous nitrate [Fe (NO 3 ) 2 9H 2 O] and 0.2 g of a palladium nitrate solution are mixed and dissolved in 50 ml of distilled water. The following preparation steps are the same as in Example 6.
This catalyst is Fe 2 O 3 -PdO-Al 2 O in the oxide state.
3 , and the atomic ratio of Fe / Pd is 99.5 / 0.5.
【００１６】比較例１ 比較例触媒として、アルミナハニカム担体に硝酸第一鉄
４３ｇと硝酸マンガン３１ｇを混合した溶液を含浸す
る。次いで３００℃で２時間予備焼成する。再び、混合
溶液中に含浸し、次いで、３００℃で２時間焼成する。
次いで、塩化白金酸溶液を含浸して乾燥し７００℃で２
時間焼成した。この触媒は酸化物状態でＦｅ2 Ｏ3 −Ｍ
ｎＯ2 −Ｐｔとなり、Ｆｅ／Ｍｎ／Ｐｔの原子比で４
９．５／５０／０．５である。完成触媒を得た。Comparative Example 1 As a comparative example catalyst, an alumina honeycomb carrier was impregnated with a solution in which 43 g of ferrous nitrate and 31 g of manganese nitrate were mixed. Then, pre-baking is performed at 300 ° C. for 2 hours. It is again impregnated in the mixed solution and then calcined at 300 ° C. for 2 hours.
Then, impregnate with chloroplatinic acid solution and dry it at 700 ° C.
Burned for hours. This catalyst is Fe 2 O 3 -M in the oxide state.
It becomes nO 2 -Pt, and the atomic ratio of Fe / Mn / Pt is 4
9.5 / 50 / 0.5. A finished catalyst was obtained.
【００１７】実施例８ 実施例１の触媒と同様であるが、γ−アルミナ担体の代
わりにコージェライト担体を用いた。Example 8 Similar to the catalyst of Example 1, but a cordierite carrier was used instead of the γ-alumina carrier.
【００１８】実施例９ 実施例１の触媒と同様であるが、コージェライト担体の
表面にγ−アルミナをコーティングしその表面に触媒活
性成分を含浸した。Example 9 Same as the catalyst of Example 1, except that the surface of the cordierite carrier was coated with γ-alumina and the surface was impregnated with the catalytically active component.
【００１９】実施例１０ 実施例１〜９及び比較例１の触媒のそれぞれを、内径２
５ｍｍの反応管内に設置した。臭気成分の模擬ガス（メ
チルメルカプタン：１０ｐｐｍ、トリメチルアミン：１
０ｐｐｍ、空気バランス）を単独に反応管内に流通させ
て、反応管入り口のメチルメルカプタン、トリメチルア
ミン濃度に対する反応管出口のメチルメルカプタン、ト
リメチルアミン濃度の減少から、前記２種のガスの除去
率を求めた。反応条件は以下の通りである。 反応温度：２０℃、空間速度：５００００ｈ-1（触媒単
位重量当たりのガスの供給量） 図１、図２、図３、図４に２種の臭気成分における実施
例触媒の触媒性能結果を示す。図１及び図２は実施例１
〜７（ａ〜ｇ）と比較例１（ｈ）を、図３及び図４は実
施例８，９（ｉ〜ｊ）と比較例１（ｈ）の結果を示して
いる。図からも明らかなように、実施例触媒１〜９は比
較例触媒に比べメチルメルカプタン、トリメチルアミン
の除去活性が高いことが確認された。以上の実施例１〜
９に記載の触媒は、例えば空気清浄器、空調機、冷蔵庫
などに設置され、臭気成分を含むガスの脱臭触媒として
使用される。Example 10 Each of the catalysts of Examples 1 to 9 and Comparative Example 1 had an inner diameter of 2
It was installed in a 5 mm reaction tube. Odor component simulated gas (methyl mercaptan: 10 ppm, trimethylamine: 1
(0 ppm, air balance) was separately circulated in the reaction tube, and the removal rates of the two types of gas were calculated from the decrease in the methylmercaptan and trimethylamine concentrations at the reaction tube outlet with respect to the methylmercaptan and trimethylamine concentrations at the reaction tube inlet. The reaction conditions are as follows. Reaction temperature: 20 ° C., space velocity: 50000 h −1 (gas supply amount per unit weight of catalyst) FIG. 1, FIG. 2, FIG. 3, and FIG. 4 show the catalytic performance results of the example catalysts for two types of odorous components. .. 1 and 2 show Example 1
7 (a to g) and Comparative Example 1 (h), and FIGS. 3 and 4 show the results of Examples 8 and 9 (i to j) and Comparative Example 1 (h). As is clear from the figure, it was confirmed that the catalysts of Examples 1 to 9 had a higher activity of removing methyl mercaptan and trimethylamine than the catalysts of Comparative Examples. Examples 1 to 1 above
The catalyst described in 9 is installed in, for example, an air purifier, an air conditioner, a refrigerator, etc., and is used as a deodorizing catalyst for a gas containing an odor component.
【００２０】実施例１１ 図５に、本発明の触媒を設置した空気清浄器の概略断面
図を示す。図５において、１は空気清浄器本体、２は吸
入口、３は触媒層を示し、４は貫流ファン、５は排気口
を示している。この空気清浄器１は、貫流ファン４によ
り臭気を含有する空気を吸入口２から吸引し、本発明の
脱臭触媒を設置した触媒層３を通すことにより臭気成分
を酸化分解し、脱臭された空気が排気口５から排出さ
れ、室内の空気を清浄化するものである。Example 11 FIG. 5 is a schematic sectional view of an air purifier equipped with the catalyst of the present invention. In FIG. 5, 1 is an air purifier body, 2 is an inlet port, 3 is a catalyst layer, 4 is a cross-flow fan, and 5 is an exhaust port. This air purifier 1 sucks air containing an odor from a suction port 2 by a cross-flow fan 4 and passes the catalyst layer 3 provided with the deodorizing catalyst of the present invention to oxidize and decompose the odorous components to deodorize the air. Is discharged from the exhaust port 5 to clean the indoor air.
【００２１】実施例１２ 図６に、本発明の触媒を設置した空調機の概略断面図を
示す。図６において、１１は空調機本体、１２は臭気成
分を含んだ室内空気を吸引する吸入口、１３は本発明の
触媒を設置した触媒層を示し、１４は熱交換器、１５は
貫流ファン、１６は脱臭された空気を排出する排気口を
示す。この空調機も実施例１１の空気清浄器と同様の機
能を有しており、この装置では、熱交換器１４により、
脱臭された空気の温度調整が行われて、排気口から室内
に循環されている。Example 12 FIG. 6 shows a schematic sectional view of an air conditioner equipped with the catalyst of the present invention. In FIG. 6, 11 is an air conditioner main body, 12 is an inlet for sucking indoor air containing an odor component, 13 is a catalyst layer on which the catalyst of the present invention is installed, 14 is a heat exchanger, 15 is a cross-flow fan, Reference numeral 16 denotes an exhaust port for discharging the deodorized air. This air conditioner also has the same function as the air purifier of the eleventh embodiment, and in this device, the heat exchanger 14
The temperature of the deodorized air is adjusted and circulated in the room through the exhaust port.
【００２２】実施例１３ 図７に、本発明の触媒を設置した冷蔵庫の概略断面図を
示す。図７において、２１は冷蔵庫本体であり、２２は
冷凍室、２３は収納庫内、２４は臭気成分を含んだ冷
気、２５は本発明の触媒を設置した触媒層を示し、２６
は脱臭された冷気を示す。冷蔵庫２１内に触媒層２５を
設けることにより、冷気の流れにより冷蔵庫内の臭気を
脱臭することができる。Example 13 FIG. 7 shows a schematic sectional view of a refrigerator equipped with the catalyst of the present invention. In FIG. 7, 21 is a refrigerator main body, 22 is a freezer, 23 is a storage compartment, 24 is cold air containing odorous components, 25 is a catalyst layer on which the catalyst of the present invention is installed, 26
Indicates deodorized cold air. By providing the catalyst layer 25 in the refrigerator 21, the odor in the refrigerator can be deodorized by the flow of cold air.
【００２３】[0023]
【発明の効果】本発明によれば、空気中の臭気成分の除
去を確実に行い、長時間高い脱臭効果を得ることができ
る。さらに本発明の触媒は臭気成分の不快臭気を除去
し、環境浄化に寄与する。According to the present invention, odorous components in the air can be reliably removed, and a high deodorizing effect can be obtained for a long time. Further, the catalyst of the present invention removes unpleasant odors of odor components and contributes to environmental purification.
【図１】メチルメルカプタンを用いた触媒性能測定結果
を示すグラフである。FIG. 1 is a graph showing the results of measuring catalyst performance using methyl mercaptan.
【図２】トリメチルアミンを用いた触媒性能測定結果を
示すグラフである。FIG. 2 is a graph showing the results of measuring catalyst performance using trimethylamine.
【図３】メチルメルカプタンを用いた触媒性能測定結果
を示すグラフである。FIG. 3 is a graph showing the results of measuring catalyst performance using methyl mercaptan.
【図４】トリメチルアミンを用いた触媒性能測定結果を
示すグラフである。FIG. 4 is a graph showing the results of measuring catalyst performance using trimethylamine.
【図５】本発明の触媒を用いた空気清浄器の概略断面図
である。FIG. 5 is a schematic sectional view of an air purifier using the catalyst of the present invention.
【図６】本発明の触媒を用いた空調機の概略断面図であ
る。FIG. 6 is a schematic sectional view of an air conditioner using the catalyst of the present invention.
【図７】本発明の触媒を用いた冷蔵庫の概略断面図であ
る。FIG. 7 is a schematic sectional view of a refrigerator using the catalyst of the present invention.
ａ：実施例１、ｂ：実施例２、ｃ：実施例３、ｄ：実施
例４、ｅ：実施例５、ｆ：実施例６、ｇ：実施例７、
ｈ：比較例１、ｉ：実施例８、ｊ：実施例９、１：空気
清浄器本体、２：吸入口、３：触媒層、４：貫流ファ
ン、５：排気口、１１：空調機本体、１２：吸入口、１
３：触媒層、１４：熱交換器、１５：貫流ファン、１
６：排気口、２１：冷蔵庫本体、２２：冷凍室、２３：
収納庫内、２４：臭気を含んだ冷気、２５：触媒層、２
６：脱臭された冷気a: Example 1, b: Example 2, c: Example 3, d: Example 4, e: Example 5, f: Example 6, g: Example 7,
h: Comparative example 1, i: Example 8, j: Example 9, 1: Air purifier body, 2: Inlet port, 3: Catalyst layer, 4: Cross-flow fan, 5: Exhaust port, 11: Air conditioner body , 12: suction port, 1
3: catalyst layer, 14: heat exchanger, 15: cross-flow fan, 1
6: Exhaust port, 21: Refrigerator body, 22: Freezer, 23:
Inside the storage, 24: cold air containing odor, 25: catalyst layer, 2
6: Deodorized cold air
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.5 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｂ０１Ｊ 23/74 ３２１ Ｍ 8017−4Ｇ 23/76 Ｍ 8017−4Ｇ 23/89 Ｍ 8017−4Ｇ Ｆ２４Ｆ 1/00 ３７１ Ｚ 6803−3Ｌ 3/16 6803−3Ｌ (72)発明者 中 礼司 栃木県下都賀郡大平町富田800番地 株式 会社日立製作所栃木工場内─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 5 Identification code Internal reference number FI Technical indication location B01J 23/74 321 M 8017-4G 23/76 M 8017-4G 23/89 M 8017-4G F24F 1 / 00 371 Z 6803-3L 3/16 6803-3L (72) Inventor Reiji Naka, 800, Tomita, Ohira-cho, Shimotsuga-gun, Tochigi Prefecture Tochigi factory, Hitachi, Ltd.
Claims (8)
下で室温以下で酸化分解する触媒であって、酸化物担体
に担持された活性成分として、鉄の酸化物とＭｎＯ2 ，
ＮｉＯ，ＣｕＯ，Ｃｏ3 Ｏ4 ，ＣｅＯ2 ，ＰｔＯ及びＰ
ｄＯから選ばれた一種以上の酸化物との混合酸化物及び
／又は化合物の形態で有し、鉄の原子価数が３価で存在
することを特徴とする脱臭触媒。1. A catalyst for oxidatively decomposing an odorous component contained in air at room temperature or below in the presence of oxygen, wherein iron oxide and MnO 2 , as active components supported on an oxide carrier,
NiO, CuO, Co 3 O 4 , CeO 2, PtO and P
A deodorizing catalyst having the form of a mixed oxide and / or a compound with one or more oxides selected from dO, and having a valence of iron of 3 valences.
ｕＯ，Ｃｏ3 Ｏ4 ，ＣｅＯ2 ，ＰｔＯ及びＰｄＯから選
ばれた一種以上の酸化物との原子比が９９．５：０．５
〜５０：５０の割合で含むことを特徴とする請求項１記
載の脱臭触媒。2. The iron oxide and MnO 2 , NiO, C
The atomic ratio to one or more oxides selected from uO, Co 3 O 4 , CeO 2 , PtO and PdO is 99.5: 0.5.
The deodorizing catalyst according to claim 1, wherein the deodorizing catalyst is contained in a ratio of about 50:50.
が、アルミナ、シリカ、チタニア、ゼオライト、コージ
ェライトから選ばれた一種以上よりなることを特徴とす
る請求項１記載の脱臭触媒。3. The deodorizing catalyst according to claim 1, wherein the oxide carrier supporting the active ingredient is one or more selected from alumina, silica, titania, zeolite and cordierite.
０００ｍ2 ／ｇの範囲内にあることを特徴とする請求項
１記載の脱臭触媒。4. The specific surface area of the oxide carrier is 20 to 1
The deodorizing catalyst according to claim 1, which is in a range of 000 m 2 / g.
状が、ハニカム状、板状、３次元網目構造、粒状を有し
カートリッジタイプであることを特徴とする請求項１記
載の脱臭触媒。5. The deodorizing catalyst according to claim 1, wherein the oxide carrier carrying the active ingredient has a shape of a honeycomb, a plate, a three-dimensional network structure, or a grain, and is of a cartridge type.
入口と貫流ファンと吸入した空気を排気する排気口を具
備する空気清浄器において、吸入口と貫流ファンの空間
に、担体に活性成分が担持され、活性成分として鉄の酸
化物とＭｎＯ2 ，ＮｉＯ，ＣｕＯ，Ｃｏ3 Ｏ4 ，ＣｅＯ
2 ，ＰｔＯ及びＰｄＯから選ばれた一種以上の酸化物と
の混合酸化物及び／又は化合物の形態で有し、鉄の原子
価が３価で存在する脱臭触媒を含む触媒層を備えたこと
を特徴とする空気清浄器。6. An air purifier comprising an intake port for taking in air containing an odorous component, a cross-flow fan, and an exhaust port for exhausting the sucked air. In the space between the intake port and the cross-flow fan, an active ingredient is carried on a carrier. And iron oxide and MnO 2 , NiO, CuO, Co 3 O 4 , and CeO as active components.
2 , having a catalyst layer containing a deodorizing catalyst having a trivalent iron valence in the form of a mixed oxide and / or compound with one or more oxides selected from PtO and PdO. A characteristic air purifier.
入口と、取り入れた空気を冷，暖房する熱交換器と冷，
暖房した空気を吸引，排気する貫流ファンと排気口を具
備した空調機器において、熱交換器の前段又は後段に、
担体に活性成分が担持され、活性成分として鉄の酸化物
とＭｎＯ2 ，ＮｉＯ，ＣｕＯ，Ｃｏ3 Ｏ4 ，ＣｅＯ2 ，
ＰｔＯ及びＰｄＯから選ばれた一種以上の酸化物との混
合酸化物及び／又は化合物の形態を有し、鉄の原子価数
が３価で存在する脱臭触媒を含む触媒層を備えたことを
特徴とする空調機器。7. An intake port for taking in air containing an odorous component, a heat exchanger for cooling and heating the taken-in air, and a cold exchanger,
In an air conditioner equipped with a cross-flow fan that sucks in and discharges heated air and an exhaust port, the heat exchanger may be provided at a front stage or a rear stage of the heat exchanger.
An active ingredient is carried on a carrier, and iron oxide and MnO 2 , NiO, CuO, Co 3 O 4 , CeO 2 ,
It has a form of a mixed oxide and / or a compound with one or more oxides selected from PtO and PdO, and is provided with a catalyst layer containing a deodorizing catalyst in which the valence number of iron is 3 Air conditioning equipment to be.
空間に、担体に活性成分が担持され、活性成分として鉄
の酸化物とＭｎＯ2 ，ＮｉＯ，ＣｕＯ，Ｃｏ3 Ｏ4 ，Ｃ
ｅＯ2 ，ＰｔＯ及びＰｄＯから選ばれた一種以上の酸化
物との混合酸化物及び／又は化合物の形態で有し、鉄の
原子価が３価で存在する脱臭触媒を含む触媒層を備えた
ことを特徴とする冷凍機器。8. In a refrigerating apparatus for circulating cold air, an active component is carried on a carrier in a refrigerating space, and oxides of iron and MnO 2 , NiO, CuO, Co 3 O 4 , and C are used as the active components.
a catalyst layer containing a deodorizing catalyst having a trivalent iron valence, which is in the form of a mixed oxide and / or compound with one or more oxides selected from eO 2 , PtO and PdO Refrigeration equipment characterized by.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3273593A JP2696627B2 (en) | 1991-09-26 | 1991-09-26 | Deodorizing catalyst and applied equipment using it |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3273593A JP2696627B2 (en) | 1991-09-26 | 1991-09-26 | Deodorizing catalyst and applied equipment using it |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0584441A true JPH0584441A (en) | 1993-04-06 |
| JP2696627B2 JP2696627B2 (en) | 1998-01-14 |
Family
ID=17529947
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3273593A Expired - Lifetime JP2696627B2 (en) | 1991-09-26 | 1991-09-26 | Deodorizing catalyst and applied equipment using it |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2696627B2 (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11104495A (en) * | 1997-10-08 | 1999-04-20 | Matsushita Electric Ind Co Ltd | Production of catalyst for purifying odor |
| EP0909583A1 (en) * | 1997-10-17 | 1999-04-21 | Nikki-Universal Co., Ltd. | Supported catalysts,preparation and use thereof |
| WO2000048734A1 (en) * | 1999-02-18 | 2000-08-24 | Nikki-Universal Co., Ltd. | Deodorization catalyst for air-conditioner |
| US6168764B1 (en) | 1996-12-12 | 2001-01-02 | Daimlerchrysler Ag | Method and catalyst for reducing pollutants in gases |
| JP2002540913A (en) * | 1999-04-06 | 2002-12-03 | インスティトゥート フィア ノイエ マテリアーリエン ゲマインニュッツィゲ ゲゼルシャフト ミット ベシュレンクタ ハフトゥンク | Silane-based coating materials with catalytic oxidation and deodorization effects |
| JP2007130634A (en) * | 2006-12-21 | 2007-05-31 | Daikin Ind Ltd | Deodorization catalyst and its manufacturing method |
| JP2010104915A (en) * | 2008-10-30 | 2010-05-13 | Kobe Steel Ltd | Deodorant for removing acetaldehyde and method for removing acetaldehyde |
| JP2010234208A (en) * | 2009-03-30 | 2010-10-21 | Daihatsu Motor Co Ltd | Exhaust gas-purifying catalyst |
| JP2017223388A (en) * | 2016-06-14 | 2017-12-21 | 日立アプライアンス株式会社 | refrigerator |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04265153A (en) * | 1991-02-19 | 1992-09-21 | Matsushita Electric Ind Co Ltd | Deodorizer |
-
1991
- 1991-09-26 JP JP3273593A patent/JP2696627B2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04265153A (en) * | 1991-02-19 | 1992-09-21 | Matsushita Electric Ind Co Ltd | Deodorizer |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6168764B1 (en) | 1996-12-12 | 2001-01-02 | Daimlerchrysler Ag | Method and catalyst for reducing pollutants in gases |
| JPH11104495A (en) * | 1997-10-08 | 1999-04-20 | Matsushita Electric Ind Co Ltd | Production of catalyst for purifying odor |
| EP0909583A1 (en) * | 1997-10-17 | 1999-04-21 | Nikki-Universal Co., Ltd. | Supported catalysts,preparation and use thereof |
| WO2000048734A1 (en) * | 1999-02-18 | 2000-08-24 | Nikki-Universal Co., Ltd. | Deodorization catalyst for air-conditioner |
| JP2002540913A (en) * | 1999-04-06 | 2002-12-03 | インスティトゥート フィア ノイエ マテリアーリエン ゲマインニュッツィゲ ゲゼルシャフト ミット ベシュレンクタ ハフトゥンク | Silane-based coating materials with catalytic oxidation and deodorization effects |
| JP4878678B2 (en) * | 1999-04-06 | 2012-02-15 | ライプニッツ−インスティトゥート フィア ノイエ マテリアーリエン ゲマインニュッツィゲ ゲゼルシャフト ミット ベシュレンクタ ハフトゥンク | Silane-based coating materials with catalytic oxidation and deodorization effects |
| JP2007130634A (en) * | 2006-12-21 | 2007-05-31 | Daikin Ind Ltd | Deodorization catalyst and its manufacturing method |
| JP2010104915A (en) * | 2008-10-30 | 2010-05-13 | Kobe Steel Ltd | Deodorant for removing acetaldehyde and method for removing acetaldehyde |
| JP2010234208A (en) * | 2009-03-30 | 2010-10-21 | Daihatsu Motor Co Ltd | Exhaust gas-purifying catalyst |
| JP2017223388A (en) * | 2016-06-14 | 2017-12-21 | 日立アプライアンス株式会社 | refrigerator |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2696627B2 (en) | 1998-01-14 |
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