JPH034922A - Harmful gas removal filter - Google Patents
Harmful gas removal filterInfo
- Publication number
- JPH034922A JPH034922A JP1138350A JP13835089A JPH034922A JP H034922 A JPH034922 A JP H034922A JP 1138350 A JP1138350 A JP 1138350A JP 13835089 A JP13835089 A JP 13835089A JP H034922 A JPH034922 A JP H034922A
- Authority
- JP
- Japan
- Prior art keywords
- filter
- filter layer
- activated carbon
- filled
- air
- 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
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 32
- 239000003054 catalyst Substances 0.000 claims abstract description 6
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 claims description 12
- 229910052763 palladium Inorganic materials 0.000 claims description 6
- 239000000945 filler Substances 0.000 abstract 1
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 24
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 18
- MGWGWNFMUOTEHG-UHFFFAOYSA-N 4-(3,5-dimethylphenyl)-1,3-thiazol-2-amine Chemical compound CC1=CC(C)=CC(C=2N=C(N)SC=2)=C1 MGWGWNFMUOTEHG-UHFFFAOYSA-N 0.000 description 13
- JCXJVPUVTGWSNB-UHFFFAOYSA-N nitrogen dioxide Inorganic materials O=[N]=O JCXJVPUVTGWSNB-UHFFFAOYSA-N 0.000 description 13
- 239000007789 gas Substances 0.000 description 9
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 7
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 6
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 5
- 229910002091 carbon monoxide Inorganic materials 0.000 description 5
- 238000011144 upstream manufacturing Methods 0.000 description 5
- 229910002090 carbon oxide Inorganic materials 0.000 description 4
- 229910002092 carbon dioxide Inorganic materials 0.000 description 3
- 239000001569 carbon dioxide Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
Classifications
-
- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
Landscapes
- Treating Waste Gases (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は主として居住空間用の空気清浄機に用いる有害
ガス除去フィルタに関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a harmful gas removal filter used primarily in air cleaners for living spaces.
（従 来 技 術 ）
一般にこの種のフィルタは、例えば実開昭６３−１ｆ３
０９２４号公報に開示されているように、格子状に形成
した上下一対の枠間に粒状の活性炭を充填し、該フィル
タを通過するトルエン等の有機ガスの他に二酸化窒素等
の有毒ガスを前記活性炭に吸着させて、空気の清浄化を
図るようにしたものが提案されている。(Prior art) Generally, this type of filter is
As disclosed in Publication No. 0924, granular activated carbon is filled between a pair of upper and lower frames formed in a lattice shape, and in addition to organic gas such as toluene that passes through the filter, toxic gas such as nitrogen dioxide is removed from the filter. It has been proposed to purify the air by adsorbing it on activated carbon.
（発明が解決しようとする課題）
ところで二酸化窒素が存在する環境下においては一酸化
炭素［例えば５０ｐｐｍ ］の他に一酸化窒素［例えば
０．０５９ｐ■コの有害ガスも存在するものであるが、
活性炭では一酸化窒素の除去が殆どできず（５％程度）
、またその除去速度も遅いだけでなく、−酸化炭素の除
去は出来ない。(Problem to be Solved by the Invention) By the way, in an environment where nitrogen dioxide exists, in addition to carbon monoxide [for example, 50 ppm], there is also nitrogen monoxide [for example, 0.059 ppm], a harmful gas.
Activated carbon can hardly remove nitric oxide (about 5%).
, and its removal rate is slow, and -carbon oxide cannot be removed.
そのため−酸化窒素及び−酸化炭素を充分除去しようと
すれば、前記活性炭の届を充分厚くして、−酸化炭素の
除去機能をもたしたり、これら−酸化窒素及び−酸化炭
素の除去機能をもったフィルタを別に設けたりすること
が考えられるが、これらの場合フィルタの厚さが非常に
厚くなると云う不具合があるし、またフィルタを厚くす
ると、空気清浄機のファンモータの能力も高める必要が
あり、消費動力が無駄になるし、騒音の発生原因ともな
る。Therefore, in order to sufficiently remove -nitrogen oxide and -carbon oxide, it is necessary to make the layer of activated carbon sufficiently thick so as to have the function of removing -nitrogen oxide and -carbon oxide. It is possible to install a separate filter, but in this case, the problem is that the filter becomes extremely thick, and if the filter is made thicker, the capacity of the air purifier's fan motor must also be increased. This results in wasted power consumption and causes noise.
本発明は以上の実情に鑑みて開発したちので、目的とす
るところは、活性炭の厚さを厚くしたり、別のフィルタ
を用いなくともフィルタを厚くせずとも二酸化窒素は勿
論−酸化窒素や一酸化炭素をも効率よく除去することが
出来るフィルタを提供するにある。The present invention was developed in view of the above-mentioned circumstances, and the purpose is to increase the thickness of activated carbon, eliminate the use of a separate filter, and remove nitrogen oxide as well as nitrogen oxide. To provide a filter that can efficiently remove carbon monoxide.
（課題を解決するための手段）
しかして本発明は、活性炭を充填した第１フィルタ層（
１）の下流側に、パラジウム系触媒を充填した第２フィ
ルタ層（２）を重合したことを特徴とするものである。(Means for Solving the Problems) The present invention provides a first filter layer filled with activated carbon (
It is characterized in that a second filter layer (2) filled with a palladium-based catalyst is polymerized downstream of 1).
（作 用 ）
本発明によれば、第１フィルタ層（１）を構成する活性
炭で、空気中に含まれる一酸化窒素を二酸化窒素に酸化
するのであり、また第１フィルタ層（１）の下流に位置
する第２フィルタ層（２）では、該第２フィルタ層（２
）を構成するパラジウム系触媒により、前記第１フィル
タ層で酸化されて生じた二酸化窒素及び空気中に含まれ
ている二酸化窒素を吸着すると共に、空気中に含まれで
いる一酸化炭素を二酸化炭素に酸化するのである。(Function) According to the present invention, the activated carbon constituting the first filter layer (1) oxidizes nitrogen monoxide contained in the air to nitrogen dioxide, and In the second filter layer (2) located at
) adsorbs nitrogen dioxide produced by oxidation in the first filter layer and nitrogen dioxide contained in the air, and converts carbon monoxide contained in the air into carbon dioxide. It oxidizes to
（実 施 例 ）
図に示すフィルタは空気清浄機に用いるもので、基本的
には、活性炭を充填した第１フィルタ層（１）と、パラ
ジウム系触媒を充填した第２フィルタ層（２）とを備え
ているのであって、図に示す実施例では、前記第２フィ
ルタ層（２）を第１フイルタ７ｒＩＪ（１）の下流側に
重合すると共に、前記第２フィルタ層（２）の下流側に
は、前記第１フィルタ層（２）と同一構造からなる第３
フィルタｍ（３）を更に重ね合わせている。(Example) The filter shown in the figure is used in an air purifier, and basically consists of a first filter layer (1) filled with activated carbon and a second filter layer (2) filled with a palladium catalyst. In the embodiment shown in the figure, the second filter layer (2) is superimposed on the downstream side of the first filter 7rIJ (1), and the downstream side of the second filter layer (2) is superimposed on the downstream side of the first filter 7rIJ (1). The third filter layer (2) has the same structure as the first filter layer (2).
Filter m(3) is further superimposed.
［第１実施例コ
第１図から第２図に示す実施１例の第１フィルタ層（１
）及び第３フィルタ層（３）は、平面視長方形とした平
板状のウレタンホーム（１１）（３１）の表面に粒状の
活性炭（１２）（３２）をコーティングして成り、第２
フィルタ層（２）は、ハニカム状に形成した保持枠（２
１）の各部屋（２２）に、表面にパラジウムをコーティ
ングした酸化アルミニウム製の球状体（２０）を多数充
填して成り、
かかる第１〜第３フイルタ層（１）（２）（３）は、上
下一対から成る格子状の固定枠（４）（５）内に組込ん
でいるのであって、具体的には、前記第２フイルタＭ（
２）の上流側に前記第１フィルタ層（２）を、また下流
側側面に前記第３フィルタ層（３）をそれぞれ重ね合せ
て、斯くのごとく重ね合せて成るこれら第１〜第３フイ
ルタ層（１）（２）（３）を前記固定枠（４）（５）内
に組込んでいる。[First embodiment] The first filter layer (1) of the first embodiment shown in FIGS.
) and the third filter layer (3) are made by coating the surface of the flat urethane foam (11) (31), which is rectangular in plan view, with granular activated carbon (12) (32).
The filter layer (2) consists of a holding frame (2) formed in a honeycomb shape.
Each chamber (22) of 1) is filled with a large number of aluminum oxide spheres (20) whose surfaces are coated with palladium, and the first to third filter layers (1), (2), and (3) are The second filter M
2), the first filter layer (2) is superimposed on the upstream side, and the third filter layer (3) is superimposed on the downstream side surface, and these first to third filter layers are superimposed in this way. (1), (2), and (3) are incorporated into the fixed frames (4) and (5).
尚、図に示す各フィルタ層（１）（２）（３）はそれぞ
れ約１０ミリから２０’りの厚さとしている。It should be noted that each of the filter layers (1), (2), and (3) shown in the figure has a thickness of approximately 10 mm to 20 mm.
前記フィルタの強度を得る場合には、前記固定枠（４）
（５）を亜鉛引き鉄板から形成すると共に、前記第２フ
ィルタ層（２）の保持枠（２１）をアルミから形成する
のが望ましく、またフィルタの軽量化を図る場合には、
前記固定枠（，４）（５）及び前記保持枠（２１）を紙
から形成するのが望ましい。When obtaining the strength of the filter, the fixed frame (4)
(5) is preferably formed from a galvanized iron plate, and the holding frame (21) of the second filter layer (2) is preferably formed from aluminum, and in order to reduce the weight of the filter,
Preferably, the fixed frames (, 4) and (5) and the holding frame (21) are made of paper.
［第２実施例コ
また第３図から第４図に示す実施例の第１フィルタ層（
２）は、前記第１実施例と同一構造のものを用いる一方
、第１フィルタ層（１）及び第３フィルタ層（３）は、
繊維状の活性炭を粘着材料などと共に固めて、外形が平
板状を呈するハニカム状構造体（１０）（３０）に形成
したものを用い、かかる第１〜第３フイルタ層（１）（
２）（３）を、第１実施例と同様、格子状の上下一対か
ら成る格子状の固定枠（４）（５）内に組込んでいる。[Second Embodiment] Also, the first filter layer of the embodiment shown in FIGS. 3 to 4 (
2) uses the same structure as the first embodiment, while the first filter layer (1) and the third filter layer (3) are
The first to third filter layers (1) are made by hardening fibrous activated carbon together with an adhesive material and forming a honeycomb-like structure (10) (30) having a flat plate-like outer shape.
2) and (3) are incorporated into a lattice-shaped fixed frame (4) and (5) consisting of a pair of upper and lower lattice-shaped frames, as in the first embodiment.
具体的には、前記第２フィルタ層（２）の上流側及び下
流側の各側面にステンレス製の金網（６）を配設して、
前記球状体（２０）が前記保持枠（２１）から抜は出す
のを防止すると共に、前記第１フイルタｆｆ（１）を前
記第２フィルタ層（２）の上流側面に、また前記第３フ
イルタ躬（３）を前記第２フィルタ層（１）の下流側側
面にそれぞれ前記金網（６）を挾んで重ね合わせて、斯
（のどとく重ね合わせて成るこれら第１〜第３フィルタ
層（１）（２）（３）及び金網（６）を、上下一対の固
定枠（４）（５）内に組込んでいるのであって、図に示
す各フィルタ月（１）（２）（３）もそれぞれ約１０ｓ
すから２０ミリの厚さとしている。Specifically, a stainless steel wire mesh (6) is provided on each upstream and downstream side surface of the second filter layer (2),
The spherical body (20) is prevented from being pulled out from the holding frame (21), and the first filter ff(1) is placed on the upstream side of the second filter layer (2), and the third filter is placed on the upstream side of the second filter layer (2). These first to third filter layers (1) are formed by superimposing the wire mesh (6) on the downstream side surface of the second filter layer (1) with the wire mesh (6) interposed between them. (2), (3) and wire mesh (6) are incorporated into a pair of upper and lower fixed frames (4) and (5), and each filter month (1), (2), and (3) shown in the figure is also Approximately 10 seconds each
The thickness is 20 mm.
しかして以上の構成からなるフィルタは、例えば空気清
浄機の通風路内にセットして、該通風路内を通過する有
害ガスを除去するのであって即ち、まず前記第１フィル
タ月（１）により、主として空気中に含まれるトルエン
やアセトンなどのを機外ガスの吸着を行うと共に、空気
中の一酸化窒素の一部を二酸化窒素に酸化する。Therefore, the filter having the above configuration is set, for example, in the ventilation path of an air purifier to remove harmful gases passing through the ventilation path. , mainly adsorbs toluene, acetone, and other gases contained in the air outside the machine, and also oxidizes a portion of nitrogen monoxide in the air to nitrogen dioxide.
次に第２フィルタ層（１）では、前記球状体（３）の表
面にコーティングしたパラジウムの触媒作用により、空
気中に含まれる一酸化炭素を二酸化炭素に酸化する一方
、前記第１フィルタ層（１）で酸化して生じた二酸化窒
素及び空気中に含まれる二酸化窒素を吸着する。Next, in the second filter layer (1), carbon monoxide contained in the air is oxidized to carbon dioxide by the catalytic action of palladium coated on the surface of the spherical body (3), while the first filter layer ( Adsorbs nitrogen dioxide produced by the oxidation in step 1) and nitrogen dioxide contained in the air.
そして前記第３フィルタ層（３）では、前記活性炭フィ
ルタＦｊｌ （１）で吸着しきれなかったトルエンやア
セトンなどの有機性ガスの吸着を再度行うと共に、前記
第２フイルタＦＪ （１）で吸着しきれなかった二酸化
窒素をも再度吸着するのである。Then, in the third filter layer (3), organic gases such as toluene and acetone that were not completely adsorbed by the activated carbon filter Fjl (1) are adsorbed again, and the organic gases such as toluene and acetone are adsorbed by the second filter FJ (1). The nitrogen dioxide that could not be removed is also adsorbed again.
以上の第１、第２実施例では、前記第２フイルタＦＪ
（２）の下流側に第３フィルタ層（３）を設けたが、か
かる第３フイルタ！ （３）は必ずしも設けなくともよ
い。In the above first and second embodiments, the second filter FJ
Although the third filter layer (3) was provided on the downstream side of (2), such a third filter! (3) does not necessarily have to be provided.
また前記した第２実施例では、前記第２フィルタ層（２
）の上流側及び下流側の各側面にステンレス製の金網（
６）を配設して、前記球状体（２０）が前記保持枠（２
１）から抜は出すのを防止するようにしたが、前記金網
（６）に替えて、例えばナイロンやポリエステル製の不
織布を配設してもよい。Further, in the second embodiment described above, the second filter layer (2
) on each side of the upstream and downstream sides of the stainless steel wire mesh (
6) is arranged so that the spherical body (20) is attached to the holding frame (2).
1) Although the wire mesh (6) is prevented from coming out, a nonwoven fabric made of nylon or polyester, for example, may be provided instead of the wire mesh (6).
（発明の効果 ）
以上のごとく本発明によれば、第１フィルタ層（１）を
構成する活性炭により、空気中に含まれるトルエンなど
の有機ガスを吸着することが出来るのは勿論のこと、空
気中に含まれる一酸化窒素を酸化して、二酸化窒素とす
ることが出来、該第１フィルタ層（１）の下流側に位置
する前記第２フィルタ層（２）のパラジウム系触媒で前
記第１フィルタ層で生じた二酸化窒素及び空気中に含ま
れている二酸化窒素を吸着することが出来、しかも該第
２フィルタ層で空気中に含まれる一酸化炭素を二酸化炭
素に酸化することが出来るのであって、従って活性炭だ
けでは除去するこ七の難しかった一酸化窒素、二酸化窒
素及び−酸化炭素を効率よく除去することが出来るに至
ったのである。(Effects of the Invention) As described above, according to the present invention, the activated carbon constituting the first filter layer (1) can not only adsorb organic gases such as toluene contained in the air, but also absorb organic gases such as toluene contained in the air. Nitrogen monoxide contained therein can be oxidized to nitrogen dioxide, and the palladium-based catalyst of the second filter layer (2) located downstream of the first filter layer (1) can oxidize the nitrogen monoxide contained in the first filter layer (1). It can adsorb nitrogen dioxide generated in the filter layer and nitrogen dioxide contained in the air, and moreover, it can oxidize carbon monoxide contained in the air into carbon dioxide in the second filter layer. Therefore, it has become possible to efficiently remove nitrogen monoxide, nitrogen dioxide, and carbon oxide, which were difficult to remove using activated carbon alone.
第１図及び第２図は本発明にかかるフィルタの第１実施
例を示し、第１図は要部の拡大断面図、第２図は分解斜
視図である。また第３図及び第４図は本発明にかかるフ
ィルタの第２実施例を示し、第３図は要部の拡大断面図
、第４図は第２フィルタ層の平面図である。
（１）・・・・・・第１フィルタ層
（２）・・・・・・第２フィルタ層
第１図
第８図1 and 2 show a first embodiment of a filter according to the present invention, with FIG. 1 being an enlarged sectional view of the main part, and FIG. 2 being an exploded perspective view. Further, FIGS. 3 and 4 show a second embodiment of the filter according to the present invention, with FIG. 3 being an enlarged sectional view of the main part, and FIG. 4 being a plan view of the second filter layer. (1)...First filter layer (2)...Second filter layer Fig. 1 Fig. 8
Claims (1)
、パラジウム系触媒を充填した第２フィルタ層（２）を
重合したことを特徴とする有害ガス除去フィルタ。1) A harmful gas removal filter characterized in that a second filter layer (2) filled with a palladium catalyst is polymerized downstream of a first filter layer (1) filled with activated carbon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1138350A JPH034922A (en) | 1989-05-30 | 1989-05-30 | Harmful gas removal filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1138350A JPH034922A (en) | 1989-05-30 | 1989-05-30 | Harmful gas removal filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH034922A true JPH034922A (en) | 1991-01-10 |
Family
ID=15219876
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1138350A Pending JPH034922A (en) | 1989-05-30 | 1989-05-30 | Harmful gas removal filter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH034922A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1095389C (en) * | 2000-08-04 | 2002-12-04 | 中山大学 | Process for treating nitrogen oxide/co mixed gas |
-
1989
- 1989-05-30 JP JP1138350A patent/JPH034922A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1095389C (en) * | 2000-08-04 | 2002-12-04 | 中山大学 | Process for treating nitrogen oxide/co mixed gas |
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