JP7081776B2 - Ozone, acetaldehyde, toluene removal filter - Google Patents
Ozone, acetaldehyde, toluene removal filter Download PDFInfo
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- JP7081776B2 JP7081776B2 JP2018034765A JP2018034765A JP7081776B2 JP 7081776 B2 JP7081776 B2 JP 7081776B2 JP 2018034765 A JP2018034765 A JP 2018034765A JP 2018034765 A JP2018034765 A JP 2018034765A JP 7081776 B2 JP7081776 B2 JP 7081776B2
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Description
本発明は、室内において複写機やレーザープリンタから排出される有害ガスを除去するフィルターに関する。 The present invention relates to a filter that removes harmful gas emitted from a copying machine or a laser printer in a room.
複写機、レーザープリンタの作動時に各種有害ガスが室内へ排出されている。これらのガスとしては、オゾンや揮発性有機化合物（ＶＯＣ）が挙げられる。作動時に印加される高電圧や高温にさらされることにより、空気、及びインク、トナー等の消耗品、さらに印字用のフィルムや紙、または部品等に含まれている各種成分が分解、気化し排出されている。 Various harmful gases are discharged into the room when the copier and laser printer are operating. Examples of these gases include ozone and volatile organic compounds (VOCs). When exposed to the high voltage and high temperature applied during operation, air, consumables such as ink and toner, and various components contained in printing film, paper, or parts are decomposed, vaporized, and discharged. Has been done.
有害ガスや臭気成分を除去するフィルターは、その方法として活性炭やゼオライト等の物理吸着材を利用した物理吸着タイプと、化学吸着タイプと、オゾンや光触媒、金属フタロシアニン錯体等により悪臭物質を分解除去する触媒タイプ、あるいはこの吸着タイプと触媒タイプを併用した併用タイプがある。 Filters that remove harmful gases and odorous components decompose and remove malodorous substances using physical adsorption type using physical adsorbent such as activated carbon or zeolite, chemical adsorption type, ozone, photocatalyst, metal phthalocyanine complex, etc. There is a catalyst type or a combined type in which this adsorption type and the catalyst type are used in combination.
このうち例えば、活性炭の優れた吸着作用を利用した技術がよく知られているが、これらは悪臭成分を吸着し、周辺の臭気濃度を短期的に低下させる働きには優れているが、悪臭成分の量が減少するわけではなく、有効期間に限りのある消臭方法であるといわれている。例えば、オゾンの分解除去を始め各種有害ガスを除去する活性炭担持ハニカム構造体が公知である（特許文献１）。 Of these, for example, techniques that utilize the excellent adsorption action of activated carbon are well known, but these are excellent in the function of adsorbing malodorous components and lowering the odor concentration in the surroundings in the short term, but they are also malodorous components. It is said that it is a deodorizing method with a limited effective period without reducing the amount of odor. For example, an activated carbon-supported honeycomb structure that removes various harmful gases including decomposition and removal of ozone is known (Patent Document 1).
また、悪臭物質を分解除去する触媒タイプあるいは併用タイプの場合、様々な悪臭に対して効果的に消臭する有用な方法である。例えば、オゾン分解触媒を用いた方法が公知である（例えば、特許文献２）。 Further, in the case of a catalyst type or a combined type that decomposes and removes malodorous substances, it is a useful method for effectively deodorizing various malodorous odors. For example, a method using an ozone decomposition catalyst is known (for example, Patent Document 2).
また、出願人は上記従来技術を鑑み、オゾンを分解し、揮発性有機化合物（ＶＯＣ）を吸着することで優れた除去効果が得られるフィルター、すなわち活性炭混抄紙に二酸化マンガンと、環状飽和アミンを担持させたＶＯＣ除去フィルターを出願している（特許文献３）。 In view of the above-mentioned prior art, the applicant has added manganese dioxide and cyclic saturated amine to a filter that decomposes ozone and adsorbs volatile organic compounds (VOCs) to obtain an excellent removal effect, that is, activated carbon mixed paper. An application has been filed for a VOC removal filter carried (Patent Document 3).
しかしながら、さらに有害ガスのワンパス除去効率を高めるには、フィルターの骨材として活性炭混抄紙を用いると通気の際の圧力損失の点で限界があった。 However, in order to further improve the one-pass removal efficiency of harmful gas, there is a limit in terms of pressure loss during ventilation when activated carbon mixed paper is used as the aggregate of the filter.
本発明は、かかる技術的背景に鑑みてなされたものであって、圧力損失の増大を抑えながら、複写機、レーザープリンタの作動時に室内へ排出されるオゾンの除去、及び揮発性有機化合物（ＶＯＣ）のうち特にトルエンとアルデヒド化合物を吸着除去するＶＯＣ除去フィルターを提供することを目的とする。 The present invention has been made in view of such technical background, and while suppressing an increase in pressure loss, removal of ozone emitted into a room when a copying machine or a laser printer is operated, and a volatile organic compound (VOC). ), In particular, it is an object of the present invention to provide a VOC removal filter that adsorbs and removes toluene and an aldehyde compound.
前記目的を達成するために、本発明は以下の手段を提供する。 In order to achieve the above object, the present invention provides the following means.
［１］アルミニウム製骨材に、酸化マンガン（ＩＶ）及び／または酸化マンガン（ＩＩＩ）と、粉末状活性炭と、環状飽和アミンと、
を担持させ、前記酸化マンガン（ＩＶ）及び／または酸化マンガン（ＩＩＩ）を、前記アルミニウム製骨材の単位質量１ｇ当たり０．１～５．０ｇ担持させてなり、
前記粉末状活性炭を、前記アルミニウム製骨材の単位質量１ｇ当たり０．２～２．０ｇ担持させてなり、
前記環状飽和アミンを、前記アルミニウム製骨材の単位質量１ｇ当たり１０～５００ｍｇ担持させてなることを特徴とするオゾン、アセトアルデヒド、トルエン除去フィルター。
[1] Manganese oxide (IV) and / or manganese oxide (III), powdered activated carbon, cyclic saturated amine, and the like, are added to the aluminum aggregate.
The manganese oxide (IV) and / or the manganese oxide (III) was supported by 0.1 to 5.0 g per 1 g of the unit mass of the aluminum aggregate.
The powdered activated carbon is supported by 0.2 to 2.0 g per 1 g of the unit mass of the aluminum aggregate.
A filter for removing ozone, acetaldehyde, and toluene, which comprises supporting 10 to 500 mg of the cyclic saturated amine per 1 g of the unit mass of the aluminum aggregate .
［２］前記アルミニウム製骨材がハニカム構造体である前項１に記載のＶＯＣ除去フィルター。 [2] The VOC removal filter according to item 1 above, wherein the aluminum aggregate is a honeycomb structure.
［３］前記環状飽和アミンが、ピペラジンである前項１または２に記載のオゾン、アセトアルデヒド、トルエン除去フィルター。 [3] The ozone, acetaldehyde, and toluene removal filter according to item 1 or 2 above , wherein the cyclic saturated amine is piperazine.
［４］前記アルミニウム製骨材の肉厚が、１０～１００μｍの範囲である前項１～３のいずれか１項に記載のオゾン、アセトアルデヒド、トルエン除去フィルター。 [4] The ozone, acetaldehyde, and toluene removal filter according to any one of items 1 to 3 above, wherein the thickness of the aluminum aggregate is in the range of 10 to 100 μm.
［５］前記ハニカム構造体のセル密度が、３００～１５００セル／ｉｎｃｈ２の範囲である前項１～４のいずれか１項に記載のオゾン、アセトアルデヒド、トルエン除去フィルター。 [5] The ozone, acetaldehyde, and toluene removal filter according to any one of the above items 1 to 4 , wherein the cell density of the honeycomb structure is in the range of 300 to 1500 cells / inch 2 .
［１］の発明によれば、アルミニウム製骨材に、酸化マンガン（ＩＶ）及び／または酸化マンガン（ＩＩＩ）と、粉末状活性炭と、環状飽和アミンと、を担持していることから、オゾンを分解し、揮発性有機化合物（ＶＯＣ）を吸着することで優れた除去効果を得ることができる。また前記酸化マンガン（ＩＶ）及び／または酸化マンガン（ＩＩＩ）を、前記アルミニウム製骨材の単位質量１ｇ当たり０．１～５．０ｇ担持させてなることから、トルエンに対し優れた吸着除去を発揮するとともに、アルデヒド化合物に対しても十分な除去効果を得ることができる。担持量が０．１ｇ未満では安定的な効果とは言い難く、５．０ｇを越えても徒に圧力損失が増大する恐れが増すばかりなので好ましくない。前記粉末状活性炭を、前記アルミニウム製骨材の単位質量１ｇ当たり０．２～２．０ｇ担持させてなることから、活性炭の吸着力により優れた除去効果を得ることができる。担持量が０．２ｇ未満では十分な吸着力とは言い難く、２．０ｇを越えても徒に圧力損失が増大する恐れが増すばかりなので好ましくない。前記環状飽和アミンを、前記アルミニウム製骨材の単位質量１ｇ当たり１０～５００ｍｇ担持させてなることから、トルエンに対し優れた吸着除去を発揮するとともに、アルデヒド化合物に対しても十分な除去効果を得ることができる。担持量が１０ｍｇ未満では十分な吸着力とは言い難く、５００ｍｇを越えると活性炭の細孔を被覆してしまい、トルエンに対する除去効果が低下する恐れがあるので好ましくない。 According to the invention of [1], since manganese oxide (IV) and / or manganese oxide (III), powdered activated carbon, and cyclic saturated amine are carried on the aluminum aggregate, ozone is used. An excellent removal effect can be obtained by decomposing and adsorbing a volatile organic compound (VOC). Further, since the manganese oxide (IV) and / or the manganese oxide (III) is supported by 0.1 to 5.0 g per 1 g of the unit mass of the aluminum aggregate, excellent adsorption and removal with respect to toluene is exhibited. At the same time, a sufficient removing effect can be obtained for the aldehyde compound. If the loading amount is less than 0.1 g, it cannot be said that the effect is stable, and if it exceeds 5.0 g, the risk of the pressure loss increasing is increased, which is not preferable. Since the powdered activated carbon is supported by 0.2 to 2.0 g per 1 g of the unit mass of the aluminum aggregate, an excellent removing effect can be obtained due to the adsorptive power of the activated carbon. If the loading amount is less than 0.2 g, it cannot be said that the adsorption force is sufficient, and if it exceeds 2.0 g, the risk of the pressure loss increasing is increased, which is not preferable. Since the cyclic saturated amine is supported in an amount of 10 to 500 mg per 1 g of the aluminum aggregate, it exhibits excellent adsorption and removal with respect to toluene and a sufficient removal effect with respect to aldehyde compounds. be able to. If the loading amount is less than 10 mg, it cannot be said that the adsorption force is sufficient, and if it exceeds 500 mg, the pores of the activated carbon are covered and the removal effect on toluene may be reduced, which is not preferable.
［２］の発明によれば、前記アルミニウム製骨材がハニカム構造体であるので圧力損失の増大を抑えることができる。 According to the invention of [2], since the aluminum aggregate is a honeycomb structure, an increase in pressure loss can be suppressed.
［３］の発明によれば、前記環状飽和アミンが、ピペラジンであることから、ＶＯＣのなかでも特にトルエンとアルデヒド化合物を除去することができる。 According to the invention of [3] , since the cyclic saturated amine is piperazine, toluene and an aldehyde compound can be particularly removed from the VOCs.
［４］の発明によれば、前記アルミニウム製骨材の肉厚が１０～１００μｍの範囲であることから、悪臭を含む気体の流れに対して徒に圧力損失の増加をまねく恐れがなく、十分な強度を確保することができる。肉厚が１０μｍ未満ではフィルターとしての強度が著しく劣るので好ましくなく、１００μｍを越えても徒に圧力損失が増大する恐れが増すばかりなので好ましくない。 According to the invention of [4] , since the wall thickness of the aluminum aggregate is in the range of 10 to 100 μm, there is no risk of unnecessarily increasing the pressure loss due to the flow of gas containing a foul odor, which is sufficient. Strength can be ensured. If the wall thickness is less than 10 μm, the strength as a filter is significantly inferior, which is not preferable. If the wall thickness exceeds 100 μm, the pressure loss is only increased, which is not preferable.
［５］の発明によれば、前記ハニカム構造体のセル密度が３００～１５００セル／ｉｎｃｈ２の範囲であることから、悪臭を含む気体の流れに対して圧力損失の増加をまねく恐れがないとともに、酸化マンガン（ＩＶ）及び／または酸化マンガン（ＩＩＩ）と、粉末状活性炭と、環状飽和アミンと、を十分担持することができる。セル密度が３００セル／ｉｎｃｈ２未満では、悪臭との接触効率が低下するため各種有害ガスのワンパス除去効果が低下する恐れがあるので好ましくなく、１５００セル／ｉｎｃｈ２を越えても徒に圧力損失が増大する恐れが増すばかりなので好ましくない。
According to the invention of [5] , since the cell density of the honeycomb structure is in the range of 300 to 1500 cells / inch 2 , there is no possibility of causing an increase in pressure loss due to the flow of gas containing a foul odor. , Manganese oxide (IV) and / or manganese oxide (III), powdered activated carbon, and cyclically saturated amine can be sufficiently supported. If the cell density is less than 300 cells / inch 2 , it is not preferable because the contact efficiency with bad odors is lowered and the one-pass removal effect of various harmful gases may be lowered. It is not preferable because it only increases the risk of increasing.
本発明のＶＯＣ除去フィルターについて詳しく説明する。本発明のＶＯＣ除去フィルターは、アルミニウム製骨材に、酸化マンガン（IV）及び／または酸化マンガン（III）と、粉末状活性炭と、環状飽和アミンと、を担持させたことを特徴とする。 The VOC removal filter of the present invention will be described in detail. The VOC removal filter of the present invention is characterized in that an aluminum aggregate is supported with manganese oxide (IV) and / or manganese oxide (III), powdered activated carbon, and cyclic saturated amine.
アルミニウム製骨材は、アルミニウム製であれば構造は特に限定されないが、強度を保持しながら表面積を確保でき、しかも通気の際の圧力損失の増加を抑制できる構造が好ましく、平面視で波状のいわゆるコルゲート構造や矩形状の構造が好ましく、矩形状では六角断面のハニカム構造体が好ましい。これらの構造体は公知の方法で製造することができる。例えば、コルゲート構造体は、アルミニウム製の板をコルゲート加工機を用い波形シート（中芯）にし、接着剤により平面状シート（ライナー）と積層する。同様に繰り返し積層することで、平面状シート（ライナー）と波形シート（中芯）とが順に積層されたコルゲート構造体を製造することができる。また、ハニカム構造体は、アルミニウム製の板に接着剤を一定のピッチで塗布して積層させて積層板をつくる。次の層では塗布位置を半ピッチずらしたうえで積層する。同様に繰り返し積層し、複数のアルミニウム板が積層される。接着剤により各板が固着した後、両端側から引き延ばすことで適度に拡げることでハニカム構造体を製造することができる。 The structure of the aluminum aggregate is not particularly limited as long as it is made of aluminum, but a structure capable of securing a surface surface while maintaining strength and suppressing an increase in pressure loss during ventilation is preferable, and a so-called wavy structure in a plan view is preferable. A corrugated structure or a rectangular structure is preferable, and a honeycomb structure having a hexagonal cross section is preferable in the rectangular shape. These structures can be produced by known methods. For example, in the corrugated structure, an aluminum plate is made into a corrugated sheet (core) by using a corrugated processing machine, and laminated with a flat sheet (liner) by an adhesive. Similarly, by repeatedly laminating, a corrugated structure in which a flat sheet (liner) and a corrugated sheet (core) are laminated in order can be manufactured. Further, in the honeycomb structure, an adhesive is applied to an aluminum plate at a constant pitch and laminated to form a laminated plate. In the next layer, the coating positions are shifted by half a pitch before laminating. Similarly, it is repeatedly laminated, and a plurality of aluminum plates are laminated. A honeycomb structure can be manufactured by appropriately expanding each plate by stretching it from both ends after the plates are fixed by the adhesive.
なお、前記アルミニウム製骨材はハニカム構造体が好ましく、ハニカム構造体にすることで、圧力損失の増大を抑えることができるし、構造的に安定し強度も維持できるので好ましい。 The aluminum aggregate is preferably a honeycomb structure, and by using a honeycomb structure, an increase in pressure loss can be suppressed, and structural stability and strength can be maintained, which is preferable.
本発明の酸化マンガン（IV）は二酸化マンガンともいい、また、酸化マンガン（III）は三酸化二マンガン（Ｍｎ２Ｏ３）ともいい、公知のものである。アルミニウム製骨材に、酸化マンガン（IV）及び／または酸化マンガン（III）と、粉末状活性炭と、環状飽和アミンと、を担持させる方法としては、まず、酸化マンガン（IV）及び／または酸化マンガン（III）と粉末状活性炭とを水に分散させ、さらに接着剤、例えばシリカ系バインダーを加えた水分散体に、アルミニウム製骨材を浸漬し、次に６０～９０℃の温度で乾燥させた後、９５０～１１００℃の温度で焼結させたフィルターを環状飽和アミン水溶液に浸漬し、続いて脱水、１０５～１２０℃の温度で乾燥することで本発明のＶＯＣ除去フィルターを得ることができる。また、酸化マンガン（IV）及び／または酸化マンガン（III）のアルミニウム製骨材の単位質量１ｇ当りの担持量は、０．１～５．０ｇの範囲が好ましい。担持量をこの範囲にすることで、トルエンに対し優れた吸着除去を発揮するとともに、アルデヒド化合物に対しても十分な除去効果を得ることができる。担持量が０．１ｇ未満では安定的な効果とは言い難く、５．０ｇを越えても徒に圧力損失が増大する恐れが増すばかりなので好ましくない。 Manganese oxide (IV) of the present invention is also referred to as manganese dioxide, and manganese oxide (III) is also referred to as dimanganese trioxide (Mn 2 O 3 ), which is known. As a method for supporting manganese oxide (IV) and / or manganese oxide (III), powdered activated carbon, and cyclic saturated amine on an aluminum aggregate, first, manganese oxide (IV) and / or manganese oxide is used. (III) and powdered activated carbon were dispersed in water, and an aluminum aggregate was immersed in an aqueous dispersion to which an adhesive, for example, a silica-based binder was added, and then dried at a temperature of 60 to 90 ° C. After that, the VOC removal filter of the present invention can be obtained by immersing the filter sintered at a temperature of 950 to 1100 ° C. in a cyclic saturated amine aqueous solution, then dehydrating it, and drying it at a temperature of 105 to 120 ° C. The amount of manganese oxide (IV) and / or manganese oxide (III) supported per unit mass of aluminum aggregate is preferably in the range of 0.1 to 5.0 g. By setting the loading amount in this range, excellent adsorption removal for toluene can be exhibited, and a sufficient removal effect on aldehyde compounds can be obtained. If the loading amount is less than 0.1 g, it cannot be said that the effect is stable, and if it exceeds 5.0 g, the risk of the pressure loss increasing is increased, which is not preferable.
前記シリカ系バインダとしては、水ガラス、二酸化珪素（ＳｉＯ２）を挙げることができる。 Examples of the silica-based binder include water glass and silicon dioxide (SiO 2 ).
本発明の粉末状活性炭としては、粉末状であれば特に限定されないが、例えば木炭、椰子殻炭、石炭等の原料を、炭化したのち賦活化処理を施した活性炭を粉状にしたものを挙げることができる。粉末状活性炭は、吸着比表面積が非常に高いことから好ましく用いられる。中でも、椰子殻活性炭が好ましい。前記粉末状活性炭のアルミニウム製骨材の単位質量１ｇ当たりの担持量は、０．２～２．０ｇの範囲が好ましい。担持量をこの範囲にすることで、活性炭の吸着力により優れた除去効果を得ることができる。担持量が０．２ｇ未満では十分な吸着力とは言い難く、２．０ｇを越えても徒に圧力損失が増大する恐れが増すばかりなので好ましくない。 The powdered activated carbon of the present invention is not particularly limited as long as it is in powder form, and examples thereof include those obtained by carbonizing raw materials such as charcoal, coconut shell charcoal, and coal, and then activating activated carbon into powder. be able to. Powdered activated carbon is preferably used because it has a very high adsorption specific surface area. Of these, coconut shell activated carbon is preferable. The supported amount of the powdered activated carbon per 1 g of the aluminum aggregate is preferably in the range of 0.2 to 2.0 g. By setting the loading amount within this range, an excellent removing effect can be obtained due to the adsorptive power of the activated carbon. If the loading amount is less than 0.2 g, it cannot be said that the adsorption force is sufficient, and if it exceeds 2.0 g, the risk of the pressure loss increasing is increased, which is not preferable.
本発明の環状飽和アミンは、特に限定されるものではないが、例えば、モルホリン、ピペリジン、ピペラジン等が挙げられる。なかでも、常温で固体であることからピペラジンが好ましく、特にトルエンとアルデヒド化合物を除去することができる。前記環状飽和アミンのアルミニウム製骨材の単位質量１ｇ当たりの担持量は、１０～５００ｍｇの範囲が好ましい。担持量をこの範囲にすることで、トルエンに対し優れた吸着除去を発揮するとともに、アルデヒド化合物に対しても十分な除去効果を得ることができる。担持量が１０ｍｇ未満では十分な吸着力とは言い難く、５００ｍｇを越えると活性炭の細孔を被覆してしまい、トルエンに対する除去効果が低下する恐れがあるので好ましくない。 The cyclic saturated amine of the present invention is not particularly limited, and examples thereof include morpholine, piperidine, and piperazine. Of these, piperazine is preferable because it is solid at room temperature, and toluene and aldehyde compounds can be particularly removed. The amount of the cyclic saturated amine carried per 1 g of unit mass of the aluminum aggregate is preferably in the range of 10 to 500 mg. By setting the loading amount in this range, excellent adsorption removal for toluene can be exhibited, and a sufficient removal effect on aldehyde compounds can be obtained. If the loading amount is less than 10 mg, it cannot be said that the adsorption force is sufficient, and if it exceeds 500 mg, the pores of the activated carbon are covered and the removal effect on toluene may be reduced, which is not preferable.
本発明において、前記アルミニウム製骨材の肉厚は、１０～１００μｍの範囲が好ましく、この範囲にすることで、悪臭を含む気体の流れに対して徒に圧力損失の増加をまねく恐れがなく、十分な強度を確保することができる。肉厚が１０μｍ未満ではフィルターとしての強度が著しく劣るので好ましくなく、１００μｍを越えても徒に圧力損失が増大する恐れが増すばかりなので好ましくない。 In the present invention, the wall thickness of the aluminum aggregate is preferably in the range of 10 to 100 μm, and by setting it in this range, there is no risk of unnecessarily increasing the pressure loss due to the flow of gas containing a foul odor. Sufficient strength can be secured. If the wall thickness is less than 10 μm, the strength as a filter is significantly inferior, which is not preferable. If the wall thickness exceeds 100 μm, the pressure loss may increase unnecessarily, which is not preferable.
また、前記ハニカム構造体のセル密度は、３００～１５００セル／ｉｎｃｈ２の範囲が好ましく、この範囲にすることで、悪臭を含む気体の流れに対して圧力損失の増加をまねく恐れがないとともに、酸化マンガン（IV）及び／または酸化マンガン（III）と、粉末状活性炭と、環状飽和アミンと、を十分担持することができる。セル密度が３００セル／ｉｎｃｈ２未満では、悪臭との接触効率が低下するため各種有害ガスのワンパス除去効果が低下する恐れがあるので好ましくなく、１５００セル／ｉｎｃｈ２を越えても徒に圧力損失が増大する恐れが増すばかりなので好ましくない。 Further, the cell density of the honeycomb structure is preferably in the range of 300 to 1500 cells / inch 2 , and by setting this range, there is no risk of causing an increase in pressure loss due to the flow of gas containing a foul odor, and there is no risk of causing an increase in pressure loss. Manganese oxide (IV) and / or manganese oxide (III), powdered activated carbon, and cyclically saturated amine can be sufficiently supported. If the cell density is less than 300 cells / inch 2 , it is not preferable because the contact efficiency with bad odors is lowered and the one-pass removal effect of various harmful gases may be lowered. It is not preferable because it only increases the risk of increasing.
次に、本発明の具体的実施例について説明するが、本発明はこれらの実施例のものに特に限定されるものではない。なお、酸化マンガン（IV）、酸化マンガン（III）、粉末活性炭と環状飽和アミンのアルミニウム製骨材への坦持量をそれぞれ表１に示す。また、オゾン、トルエン、及びアセトアルデヒドの除去性能試験（ワンパス除去性能）の結果を表２に示す。除去性能試験（耐久性）の試験結果を表３に示す。 Next, specific examples of the present invention will be described, but the present invention is not particularly limited to those of these examples. Table 1 shows the amounts of manganese oxide (IV), manganese oxide (III), powdered activated carbon, and cyclic saturated amine carried into the aluminum aggregate. Table 2 shows the results of the ozone, toluene, and acetaldehyde removal performance tests (one-pass removal performance). Table 3 shows the test results of the removal performance test (durability).
＜使用材料＞
アルミニウム製骨材：厚さ４０μｍ
酸化マンガン：酸化マンガン（IV）
粉末活性炭：椰子殻炭
環状飽和アミン：ピペラジン
<Material used>
Aluminum aggregate: thickness 40 μm
Manganese oxide: Manganese oxide (IV)
Activated carbon powder: Palm shell charcoal Cyclic saturated amine: Piperazine
＜実施例１＞
上述の使用材料を用いてＶＯＣ除去フィルターを得た。すなわち、肉厚（厚さ）４０μｍのアルミニウム箔を用い、アルミニウム製の板にシリカ‐アルミナ系接着剤を塗布して積層させて積層板をつくり、接着剤により各板が固着した後、両端側から引き延ばすことで適度に拡げることでハニカム構造体を成形する方法で、ハニカム構造（ハニカムコア材）に成形して、セル密度６００セル／ｉｎｃｈ２であり、幅方向８０ｍｍ×積層方向８０ｍｍ×厚さ方向１０ｍｍの大きさのフィルターを得た。
<Example 1>
A VOC removal filter was obtained using the materials used above. That is, using an aluminum foil with a wall thickness (thickness) of 40 μm, a silica-alumina adhesive is applied to an aluminum plate and laminated to form a laminated plate. It is a method of forming a honeycomb structure by stretching it from the top to moderately expand it to form a honeycomb structure (honeycomb core material), and the cell density is 600 cells / inch 2 , and the width direction is 80 mm x the stacking direction is 80 mm x thickness. A filter having a size of 10 mm in the direction was obtained.
次に、あらかじめ用意した水分散体、すなわち水２０部に、粉末活性炭（種類：椰子殻炭）５０部、酸化マンガン（IV）５０部、シリカ系バインダー（オルガノシリカゾル）５０部をよく混ぜた水分散体に、上記フィルターを浸漬したのち、乾燥機に入れ温度８０℃×１０分乾燥させた後、加熱炉で温度１０００℃で２０分焼結することで、酸化マンガン（IV）と粉末活性炭を担持したフィルターを得た。酸化マンガン（IV）と粉末活性炭のアルミニウム製骨材１ｇ当りの担持量はそれぞれ１．０ｇ、１．０ｇであった。 Next, water in which 50 parts of powdered activated carbon (type: coconut shell charcoal), 50 parts of manganese oxide (IV), and 50 parts of a silica-based binder (organo silica sol) are well mixed with an aqueous dispersion prepared in advance, that is, 20 parts of water. After immersing the above filter in the dispersion, it is placed in a dryer and dried at a temperature of 80 ° C. × 10 minutes, and then sintered in a heating furnace at a temperature of 1000 ° C. for 20 minutes to obtain manganese oxide (IV) and powdered activated carbon. A carried filter was obtained. The supported amounts of manganese oxide (IV) and powdered activated carbon per 1 g of aluminum aggregate were 1.0 g and 1.0 g, respectively.
次に、このフィルターをピペラジン水溶液（濃度８質量％）に浸漬し、脱水し乾燥（温度１２０℃×５分）せしめたＶＯＣ除去フィルターを得た。このときのピペラジンのアルミニウム製骨材１ｇ当りの担持量は１２０ｍｇであった。 Next, this filter was immersed in an aqueous piperazine solution (concentration: 8% by mass), dehydrated and dried (temperature 120 ° C. × 5 minutes) to obtain a VOC removal filter. At this time, the amount of piperazine supported per 1 g of aluminum aggregate was 120 mg.
＜実施例２～６、比較例１～４＞
実施例１において、骨材の材質、厚さ、構造、セル密度、及び酸化マンガン、粉末活性炭、環状飽和アミンの種類と担持量を表１に記載の構成にした実施例２～６のＶＯＣ除去フィルターと、比較例１～４のフィルターをそれぞれ得た。
<Examples 2 to 6, Comparative Examples 1 to 4>
In Example 1, VOC removal according to Examples 2 to 6 in which the material, thickness, structure, cell density, and types and carrying amounts of manganese oxide, powdered activated carbon, and cyclic saturated amine are set as shown in Table 1. A filter and a filter of Comparative Examples 1 to 4 were obtained, respectively.
＜有害ガス、ＶＯＣ等の除去性能試験（ワンパス除去性能）＞
幅方向１２ｍｍ×積層方向１２ｍｍ×厚さ方向１０ｍｍにカットしたフィルター片を試験片としワンパス試験装置に装着して、オゾン、トルエン、アセトアルデヒドのそれぞれのガスに対して測定した。まず、この試験片と同じ内寸の角型配管に配置されたホルダーに試験片を固定し、配管の一端から毎分１３５リットル（ＳＶ値＝１８０，０００Ｈ－１）の通気を行なうファンをセットしたワンパス試験装置の一端からガスを断続的にワンパス条件で注入（入口側濃度）し、３０分後に他端から流出するガス濃度（出口側濃度）を測定し、ガスの除去率（％）を下記の式を用いて算出し評価した。「○」以上を合格とした。なお、オゾン、トルエン、アセトアルデヒドガスの入口側濃度は順に２ｐｐｍ、１０ｐｐｍ、１０ｐｐｍとし、また、風速は全て０．２３ｍ／秒とした。
除去率（％）＝１００×（ 入口側濃度 － 出口側濃度 ） ／ 入口側濃度
（１）オゾンガスの除去率（％）
「◎」：９０％以上、
「○」：８０％以上９０％未満、
「×」：８０％未満、
（２）トルエンガスの除去率（％）
「◎」：２０％以上、
「○」：１５％以上２０％未満、
「×」：１５％未満、
（３）アセトアルデヒドガスガスの除去率（％）
「◎」：２０％以上、
「○」：１５％以上２０％未満、
「×」：１５％未満、
<Harmful gas, VOC removal performance test (one-pass removal performance)>
A filter piece cut in a width direction of 12 mm, a stacking direction of 12 mm, and a thickness direction of 10 mm was used as a test piece and attached to a one-pass test device, and measurements were made for each gas of ozone, toluene, and acetaldehyde. First, the test piece is fixed to a holder placed in a square pipe with the same inner dimensions as this test piece, and a fan that ventilates 135 liters per minute (SV value = 180,000H -1 ) from one end of the pipe is set. Gas is intermittently injected from one end of the one-pass test device under one-pass conditions (concentration on the inlet side), and after 30 minutes, the concentration of gas flowing out from the other end (concentration on the outlet side) is measured to determine the gas removal rate (%). It was calculated and evaluated using the following formula. Passed "○" or higher. The concentrations of ozone, toluene, and acetaldehyde gas on the inlet side were set to 2 ppm, 10 ppm, and 10 ppm, respectively, and the wind speed was set to 0.23 m / sec.
Removal rate (%) = 100 x (inlet side concentration-outlet side concentration) / inlet side concentration (1) Ozone gas removal rate (%)
"◎": 90% or more,
"○": 80% or more and less than 90%,
"X": less than 80%,
(2) Toluene gas removal rate (%)
"◎": 20% or more,
"○": 15% or more and less than 20%,
"X": less than 15%,
(3) Acetaldehyde gas Gas removal rate (%)
"◎": 20% or more,
"○": 15% or more and less than 20%,
"X": less than 15%,
＜有害ガス、ＶＯＣ等の除去性能試験（耐久性）＞
幅方向８０ｍｍ×積層方向８０ｍｍ×厚さ方向１０ｍｍにカットしたフィルター片を試験片として、ポリエステル製の試験袋に入れ、オゾン、トルエン、アセトアルデヒドのそれぞれのガスに対して測定した。ガスは３リットル注入した。２時間後の試験袋内の濃度を測定し、一旦残存ガスを素早く脱気する。この試験を合計１６回同じ試験片で繰り返しおこなった。 この試験片１個当たりに吸着した総吸着量を理想気体の状態方程式（ＰＶ＝ｎＲＴ、Ｐ：圧力、Ｖ：体積、ｎ：モル数、Ｒ：気体定数、Ｔ：ケルビン温度）によって算出し、評価した。「○」以上を合格とした。なお、オゾン（初期濃度２００ｐｐｍ）、トルエン（初期濃度７００ｐｐｍ）、アセトアルデヒド（初期濃度６００ｐｐｍ）で行った。
（１）オゾンガスの総吸着量（ｍｇ／試験片１片）
「◎」：２５０以上
「○」：２００以上２５０未満
「×」：２００未満、
（２）トルエンガスの総吸着量（ｍｇ／試験片１片）
「◎」：５００以上
「○」：４００以上５００未満
「×」：４００未満
（３）アセトアルデヒドガスガスの総吸着量（ｍｇ／試験片１片）
「◎」：２００以上
「○」：１５０以上２００未満
「×」：１５０未満
<Harmful gas, VOC removal performance test (durability)>
A filter piece cut in a width direction of 80 mm, a stacking direction of 80 mm, and a thickness direction of 10 mm was placed in a polyester test bag as a test piece, and measured for ozone, toluene, and acetaldehyde gas. 3 liters of gas was injected. After 2 hours, measure the concentration in the test bag and quickly degas the residual gas. This test was repeated 16 times in total with the same test piece. The total amount of gas adsorbed per test piece is calculated by the ideal gas state equation (PV = nRT, P: pressure, V: volume, n: number of moles, R: gas constant, T: Kelvin temperature). evaluated. Passed "○" or higher. It was carried out with ozone (initial concentration 200 ppm), toluene (initial concentration 700 ppm) and acetaldehyde (initial concentration 600 ppm).
(1) Total adsorption amount of ozone gas (mg / 1 test piece)
"◎": 250 or more "○": 200 or more and less than 250 "×": less than 200,
(2) Total adsorption amount of toluene gas (mg / 1 piece of test piece)
"◎": 500 or more "○": 400 or more and less than 500 "×": less than 400 (3) Total adsorption amount of acetaldehyde gas (mg / 1 piece of test piece)
"◎": 200 or more "○": 150 or more and less than 200 "×": less than 150
表２及び表３から明らかなように、本発明のＶＯＣ除去フィルターは厳しい条件の消臭試験による評価において、悪臭ガスのオゾン、トルエン、アセトアルデヒドに対して優れた消臭効果を発揮するフィルターであった。 As is clear from Tables 2 and 3, the VOC removal filter of the present invention is a filter that exhibits an excellent deodorizing effect on the malodorous gases ozone, toluene, and acetaldehyde in the evaluation by the deodorizing test under severe conditions. rice field.
本発明は、室内において複写機やレーザープリンタから排出される有害ガスを除去するフィルターとして広く利用される。 INDUSTRIAL APPLICABILITY The present invention is widely used as a filter for removing harmful gas emitted from a copying machine or a laser printer in a room.
Claims (5)
を担持させ、前記酸化マンガン（ＩＶ）及び／または酸化マンガン（ＩＩＩ）を、前記アルミニウム製骨材の単位質量１ｇ当たり０．１～５．０ｇ担持させてなり、
前記粉末状活性炭を、前記アルミニウム製骨材の単位質量１ｇ当たり０．２～２．０ｇ担持させてなり、
前記環状飽和アミンを、前記アルミニウム製骨材の単位質量１ｇ当たり１０～５００ｍｇ担持させてなることを特徴とするオゾン、アセトアルデヒド、トルエン除去フィルター。 Manganese oxide (IV) and / or manganese oxide (III), powdered activated carbon, cyclic saturated amine, and the like in aluminum aggregate.
The manganese oxide (IV) and / or the manganese oxide (III) was supported by 0.1 to 5.0 g per 1 g of the unit mass of the aluminum aggregate.
The powdered activated carbon is supported by 0.2 to 2.0 g per 1 g of the unit mass of the aluminum aggregate.
A filter for removing ozone, acetaldehyde, and toluene, which comprises supporting 10 to 500 mg of the cyclic saturated amine per 1 g of the unit mass of the aluminum aggregate .
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