JPS5949050B2 - How to remove ozone - Google Patents
How to remove ozoneInfo
- Publication number
- JPS5949050B2 JPS5949050B2 JP51089853A JP8985376A JPS5949050B2 JP S5949050 B2 JPS5949050 B2 JP S5949050B2 JP 51089853 A JP51089853 A JP 51089853A JP 8985376 A JP8985376 A JP 8985376A JP S5949050 B2 JPS5949050 B2 JP S5949050B2
- Authority
- JP
- Japan
- Prior art keywords
- ozone
- activated carbon
- catalyst
- palladium
- removal rate
- 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.)
- Expired
Links
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 title claims description 19
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 20
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 claims description 20
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 14
- 239000003054 catalyst Substances 0.000 claims description 11
- 239000011148 porous material Substances 0.000 claims description 11
- 229910052763 palladium Inorganic materials 0.000 claims description 10
- 229910052697 platinum Inorganic materials 0.000 claims description 7
- 229910052751 metal Inorganic materials 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 6
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 5
- 239000000835 fiber Substances 0.000 description 6
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical class C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 6
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 description 2
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 description 1
- 241000894006 Bacteria Species 0.000 description 1
- 229920003043 Cellulose fiber Polymers 0.000 description 1
- 241000207199 Citrus Species 0.000 description 1
- 235000013162 Cocos nucifera Nutrition 0.000 description 1
- 244000060011 Cocos nucifera Species 0.000 description 1
- 208000000059 Dyspnea Diseases 0.000 description 1
- 206010013975 Dyspnoeas Diseases 0.000 description 1
- 206010019233 Headaches Diseases 0.000 description 1
- 206010028813 Nausea Diseases 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000003213 activating effect Effects 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 235000020971 citrus fruits Nutrition 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000001877 deodorizing effect Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 208000002173 dizziness Diseases 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 231100000869 headache Toxicity 0.000 description 1
- 230000008693 nausea Effects 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 230000001766 physiological effect Effects 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 239000012629 purifying agent Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 208000013220 shortness of breath Diseases 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000005979 thermal decomposition reaction Methods 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
- Catalysts (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Description
【発明の詳細な説明】
本発明は、空気中に含まれる人体に有害なオゾンを除去
する方法に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for removing ozone contained in the air that is harmful to the human body.
オゾンは強力な酸化作用を有する為、空気中の浮遊菌の
殺菌、空気の脱臭など空気の浄化剤として種々の用途が
提案されているが、オゾンは非常に臭気の強い気体であ
り、したがって空気中に０．１ｐ１ｍの濃度で存在する
だけで、息切れ、めまい、頭痛、吐き気などの生理作用
が生じることがあり人体に対して無害であるとはいえな
い。Because ozone has a strong oxidizing effect, various uses have been proposed as an air purifying agent, such as sterilizing airborne bacteria and deodorizing the air.However, ozone is a gas with a very strong odor, so it Even if it is present at a concentration of 0.1 pm, it can cause physiological effects such as shortness of breath, dizziness, headache, and nausea, so it cannot be said that it is harmless to the human body.
従来オゾンを除去する方法として活性炭、二酸化マンガ
ン等の物質にオゾンを通す方法が公知であるが除去率、
寿命、圧損等の点で不満足であつた。Conventional methods for removing ozone include passing ozone through substances such as activated carbon and manganese dioxide, but the removal rate and
It was unsatisfactory in terms of life, pressure loss, etc.
従来、粒状活性炭にパラジウムを担持させたものが提案
されているが、触媒の効率が低く、除去率を高めようと
すると層厚を数センチメートル以上を採る必要があり、
圧損の上昇が避けることができなかった。Conventionally, palladium supported on granular activated carbon has been proposed, but the efficiency of the catalyst is low, and in order to increase the removal rate, the layer thickness must be several centimeters or more.
An increase in pressure drop could not be avoided.
本発明はかかる欠点を改善すべく見出されたものである
。The present invention was discovered to improve these drawbacks.
皿ち、全細孔容積が０．３ｃｃ／ｇ以上で、半径１００
Å以下の細孔が容積比率の全細孔の７０％以上である活
性炭素繊維に、白金または／およびパラジウムを金属単
体として担持したオゾン分解触媒を提供するものである
。Plate, total pore volume is 0.3cc/g or more, radius 100
The present invention provides an ozone decomposition catalyst in which platinum or/and palladium is supported as an elemental metal on activated carbon fibers in which pores of Å or smaller account for 70% or more of the total pores by volume.
セルロース繊維、アクリロニトリル繊維、フェノール柑
脂繊維、レジナス・ピッチ繊維等の前駆体繊維を適当な
方法、耐炎化処理後、焼成賦活することによって得られ
る活性炭素繊維が本発明に用いられる。Activated carbon fibers obtained by flame-proofing precursor fibers such as cellulose fibers, acrylonitrile fibers, phenolic citrus fibers, and resinous pitch fibers by an appropriate method and then firing and activating the fibers are used in the present invention.
活性炭素繊維含有集合体はペーパー状、不織布状、シー
ト状、魂状等種々の形態をとることが出来る。The activated carbon fiber-containing aggregate can take various forms such as paper, non-woven fabric, sheet, and fiber.
この活性炭素繊維集合体に白金又は／及びパラジウムを
金属単体として担持させて触媒とする。This activated carbon fiber aggregate supports platinum and/or palladium as a single metal to form a catalyst.
この白金又は／及びパラジウム単体の担持量は、金属換
算にして活性炭素繊維重量に対して０．５〜１０重量％
の範囲であればよいが１〜５重量％がとくに好ましい。The supported amount of platinum or/and palladium alone is 0.5 to 10% by weight based on the weight of activated carbon fiber in terms of metal.
The content may be within the range of 1 to 5% by weight, particularly preferably 1 to 5% by weight.
白金又は／及びパラジウム単体の担持は白金又は／及び
パラジウムの塩類を活性炭素繊維に含浸後、環元、熱分
解等通常の方法で行なうことが出来る。Supporting of platinum or/and palladium alone can be carried out by impregnating activated carbon fibers with salts of platinum or/and palladium, and then using a conventional method such as ring removal or thermal decomposition.
本発明の方法によると高比表面積で均一なミクロ・ポア
ー分布を有する活性炭素繊維上に金属触媒が担持されて
いる為、通常の活性炭に触媒を担持したものより、活性
、寿命が非常に長いという特徴を有する。According to the method of the present invention, the metal catalyst is supported on activated carbon fibers that have a high specific surface area and a uniform micro-pore distribution, so the activity and life are much longer than those in which the catalyst is supported on ordinary activated carbon. It has the following characteristics.
本発明の触媒は金属触媒の分散度が良好であり、これが
触媒作用の向上に寄与しているものと推測される。The catalyst of the present invention has a good degree of dispersion of the metal catalyst, and it is presumed that this contributes to the improvement of the catalytic action.
さらに繊維状である為、酸化速度が大きく、圧力損失が
低いという利点も有する。Furthermore, since it is fibrous, it has the advantage of high oxidation rate and low pressure loss.
本触媒に遭電すると容易にフィルタ一部分が均一に高温
に加熱され、除去性能が一層向上するという利点も有す
る。Another advantage is that when the catalyst encounters electricity, a portion of the filter is easily heated to a high temperature uniformly, further improving the removal performance.
実施例 １
パラジウムを５重量％担持した細孔容積０．５ｃｃ／ｇ
、半径１００Å以下の細孔容積比率９６％の活性炭素繊
維（厚３３ｍｍ）のフェルト２枚を（目付２００ｇ／ｍ
つを、下図のようなアルミ枠の両面にＳｖＳ金鋼をはっ
たユニットに充填し、０．２ｐｐｍオゾンを含有する排
ガスを１．５ｍ・／ｍｉｎの風量で流したところ、初期
のオゾン除去率は９８％であり、９０％の除去率を約１
０００時間保持した。Example 1 Pore volume 0.5 cc/g with 5% by weight of palladium supported
, two sheets of activated carbon fiber felt (thickness 33 mm) with a pore volume ratio of 96% with a radius of 100 Å or less (fabric weight 200 g/m
When the unit was filled with SvS gold steel on both sides of an aluminum frame as shown in the figure below, and exhaust gas containing 0.2 ppm ozone was flowed at a flow rate of 1.5 m/min, initial ozone removal was achieved. The removal rate is 98%, and the removal rate of 90% is approximately 1
It was held for 000 hours.
圧損は、２ｍｍＨ２Ｏであった。The pressure drop was 2 mmH2O.
比較例 １
パラジウムを０．５％担持した６−１０メツシユのヤシ
ガラ活性炭を、実施例と同じユニットに充填し、０．２
ｆ）［のオゾンを含有するガスを流したところ初期の
除去率は５０％であり、オゾン臭が強く感ぜられた。Comparative Example 1 6-10 mesh coconut shell activated carbon carrying 0.5% palladium was filled into the same unit as in the example, and 0.2% palladium was loaded.
f) When a gas containing ozone was flowed, the initial removal rate was 50%, and a strong ozone odor was felt.
次にユニットの厚さを５０ｍｍにして上記の活性炭触媒
を充填し同様にオゾン処理を行なった。Next, the unit was made to have a thickness of 50 mm, filled with the above activated carbon catalyst, and ozone treated in the same manner.
初期の除去率は９１％であったが、１５０時間経過時の
除去率は８７％に低下していた。The initial removal rate was 91%, but the removal rate after 150 hours had decreased to 87%.
圧力損失は６ｍｍＨ２Ｏであった。The pressure drop was 6 mmH2O.
実施例 ２
細孔容積０．４５ｃｍ／ｇ半径１００Å以下の細孔の容
積比率が９０％の活性炭素繊維フェルト （厚さ４ｍｍ
）に白金触媒を５重量％担持させた。Example 2 Activated carbon fiber felt with a pore volume of 0.45 cm/g and a volume ratio of pores with a radius of 100 Å or less of 90% (thickness: 4 mm)
) was loaded with 5% by weight of platinum catalyst.
このフェルトを実施例１と同じユニットに入れて０．０
５ｐＩｒｎのオゾン含有排ガスを１．５ｍ３７ｍ１ｎの
風量で流して処理した。Put this felt into the same unit as in Example 1 and get 0.0
The treatment was carried out by flowing ozone-containing exhaust gas of 5 pIrn at an air volume of 1.5 m37 m1n.
オゾンの初期除去率は９３％であり、９０％の除去率は
９１６時間保持した。The initial ozone removal rate was 93%, and the 90% removal rate was maintained for 916 hours.
なお圧損は２．６ｍｍＨ２Ｏであった。Note that the pressure loss was 2.6 mmH2O.
比較例 ２
実施例２に記載した活性炭素繊維フェルトを２５枚重ね
合せて実施列１と同様なアルミ枠に入れて０．２ｐＩｒ
ｎオゾン含有ガスを１．５ ｍ３７ｍ１ｎの風量で処理
したところ初期のオゾン除去率は９０％であったが、５
０時間後のオゾン除去率は２８％であった。Comparative Example 2 25 sheets of activated carbon fiber felt described in Example 2 were stacked together, placed in an aluminum frame similar to Example 1, and heated to 0.2 pIr.
When the ozone-containing gas was treated with an air volume of 1.5 m37 m1n, the initial ozone removal rate was 90%, but the
The ozone removal rate after 0 hours was 28%.
又圧損は１０ｍｍＨｇであった。Moreover, the pressure loss was 10 mmHg.
図面は本発明方法の実施に使用した吸着ユニットの例で
ある。The drawing shows an example of an adsorption unit used to carry out the method of the present invention.
Claims (1)
００Å以下の細孔が容積比率で全細孔の７０％以上であ
る活性炭素繊維に、白金または／およびパラジウムを金
属単体として担持した触媒にオゾンを接触せしめること
を特徴とするオゾンの除去方法。1 The volume of all pores is 0.3 cc/g or more, and the radius is 1
A method for removing ozone, which comprises bringing ozone into contact with a catalyst in which platinum or/and palladium is supported as an elemental metal on activated carbon fibers in which pores of 00 Å or less account for 70% or more of the total pores in terms of volume ratio.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP51089853A JPS5949050B2 (en) | 1976-07-27 | 1976-07-27 | How to remove ozone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP51089853A JPS5949050B2 (en) | 1976-07-27 | 1976-07-27 | How to remove ozone |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5314665A JPS5314665A (en) | 1978-02-09 |
| JPS5949050B2 true JPS5949050B2 (en) | 1984-11-30 |
Family
ID=13982329
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP51089853A Expired JPS5949050B2 (en) | 1976-07-27 | 1976-07-27 | How to remove ozone |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5949050B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02307511A (en) * | 1989-05-19 | 1990-12-20 | Sakai Chem Ind Co Ltd | Ozone decomposer |
| JPH02307509A (en) * | 1989-05-19 | 1990-12-20 | Sakai Chem Ind Co Ltd | Ozone decomposer |
| JPH02307510A (en) * | 1989-05-19 | 1990-12-20 | Sakai Chem Ind Co Ltd | Ozone decomposer |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4982593A (en) * | 1972-12-15 | 1974-08-08 |
-
1976
- 1976-07-27 JP JP51089853A patent/JPS5949050B2/en not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4982593A (en) * | 1972-12-15 | 1974-08-08 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5314665A (en) | 1978-02-09 |
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