JPH02149343A - Ozone decomposition catalyst - Google Patents
Ozone decomposition catalystInfo
- Publication number
- JPH02149343A JPH02149343A JP63301403A JP30140388A JPH02149343A JP H02149343 A JPH02149343 A JP H02149343A JP 63301403 A JP63301403 A JP 63301403A JP 30140388 A JP30140388 A JP 30140388A JP H02149343 A JPH02149343 A JP H02149343A
- Authority
- JP
- Japan
- Prior art keywords
- catalyst
- clay
- ozone
- manganese dioxide
- ozone decomposition
- 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
- 239000003054 catalyst Substances 0.000 title claims abstract description 53
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 title claims abstract description 28
- 238000000354 decomposition reaction Methods 0.000 title claims abstract description 14
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 claims abstract description 59
- 239000004927 clay Substances 0.000 claims abstract description 36
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 29
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 10
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000010949 copper Substances 0.000 claims abstract description 6
- 239000004408 titanium dioxide Substances 0.000 claims abstract description 5
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims abstract description 4
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 4
- 229910052709 silver Inorganic materials 0.000 claims abstract description 4
- 239000004332 silver Substances 0.000 claims abstract description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 3
- 239000010941 cobalt Substances 0.000 claims abstract description 3
- 229910017052 cobalt Inorganic materials 0.000 claims abstract description 3
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims abstract description 3
- 229910052802 copper Inorganic materials 0.000 claims abstract description 3
- 229910044991 metal oxide Inorganic materials 0.000 claims abstract 3
- 150000004706 metal oxides Chemical class 0.000 claims abstract 3
- 229910052742 iron Inorganic materials 0.000 claims abstract 2
- 238000006243 chemical reaction Methods 0.000 abstract description 7
- 238000002156 mixing Methods 0.000 abstract description 4
- 230000003197 catalytic effect Effects 0.000 abstract description 3
- 238000007796 conventional method Methods 0.000 abstract description 2
- 229910052903 pyrophyllite Inorganic materials 0.000 abstract description 2
- 239000012495 reaction gas Substances 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 16
- 238000011068 loading method Methods 0.000 description 11
- 229910052570 clay Inorganic materials 0.000 description 4
- 238000001179 sorption measurement Methods 0.000 description 4
- 238000006467 substitution reaction Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000006864 oxidative decomposition reaction Methods 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- 229910000108 silver(I,III) oxide Inorganic materials 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 239000005995 Aluminium silicate Substances 0.000 description 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 1
- 101100481408 Danio rerio tie2 gene Proteins 0.000 description 1
- 241000556720 Manga Species 0.000 description 1
- 101100481410 Mus musculus Tek gene Proteins 0.000 description 1
- 235000010582 Pisum sativum Nutrition 0.000 description 1
- 240000004713 Pisum sativum Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229910021536 Zeolite Inorganic materials 0.000 description 1
- 239000003463 adsorbent Substances 0.000 description 1
- 235000012211 aluminium silicate Nutrition 0.000 description 1
- HPTYUNKZVDYXLP-UHFFFAOYSA-N aluminum;trihydroxy(trihydroxysilyloxy)silane;hydrate Chemical compound O.[Al].[Al].O[Si](O)(O)O[Si](O)(O)O HPTYUNKZVDYXLP-UHFFFAOYSA-N 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 229910001919 chlorite Inorganic materials 0.000 description 1
- 229910052619 chlorite group Inorganic materials 0.000 description 1
- QBWCMBCROVPCKQ-UHFFFAOYSA-N chlorous acid Chemical compound OCl=O QBWCMBCROVPCKQ-UHFFFAOYSA-N 0.000 description 1
- 239000002734 clay mineral Substances 0.000 description 1
- 238000000975 co-precipitation Methods 0.000 description 1
- UBEWDCMIDFGDOO-UHFFFAOYSA-N cobalt(II,III) oxide Inorganic materials [O-2].[O-2].[O-2].[O-2].[Co+2].[Co+3].[Co+3] UBEWDCMIDFGDOO-UHFFFAOYSA-N 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- GUJOJGAPFQRJSV-UHFFFAOYSA-N dialuminum;dioxosilane;oxygen(2-);hydrate Chemical compound O.[O-2].[O-2].[O-2].[Al+3].[Al+3].O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O GUJOJGAPFQRJSV-UHFFFAOYSA-N 0.000 description 1
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 229910052621 halloysite Inorganic materials 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 239000012784 inorganic fiber Substances 0.000 description 1
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 229910000473 manganese(VI) oxide Inorganic materials 0.000 description 1
- 239000010445 mica Substances 0.000 description 1
- 229910052618 mica group Inorganic materials 0.000 description 1
- 229910052901 montmorillonite Inorganic materials 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 238000005949 ozonolysis reaction Methods 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 239000012744 reinforcing agent Substances 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- XJDNKRIXUMDJCW-UHFFFAOYSA-J titanium tetrachloride Chemical compound Cl[Ti](Cl)(Cl)Cl XJDNKRIXUMDJCW-UHFFFAOYSA-J 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000010457 zeolite 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
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
- Catalysts (AREA)
Abstract
Description
【発明の詳細な説明】
〈産業上の利用分野〉
本発明は、気体等の中に含まれる、オゾンを分解除去す
るための触媒に間する。DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a catalyst for decomposing and removing ozone contained in a gas or the like.
〈従来の技術〉
従来、気体中に含まれる有害成分であるオゾンを除去す
る方法として、活性炭、ゼオライト等の多孔質物質を用
いる吸着法、あるいは、ＭｎＯ２などの触媒を用いるこ
とによる酸化分解法等の方法が行われてきた。<Prior art> Conventionally, methods for removing ozone, which is a harmful component contained in gases, include adsorption methods using porous materials such as activated carbon and zeolite, and oxidative decomposition methods using catalysts such as MnO2. method has been used.
〈発明が解決しようとする問題点〉
しかしながら、上記従来のオゾンの除去方法はいずれも
、充分に満足のいく方法であるとは言い難い。<Problems to be Solved by the Invention> However, none of the above conventional ozone removal methods can be said to be fully satisfactory.
すなわち、吸着法には、吸着剤が吸着能力を発揮する期
間が有限であるため、再生等することを要し、吸着装置
のメンテナンスに多大の労力及び費用が必要となるとい
う問題がある。That is, the adsorption method has a problem in that since the period during which the adsorbent exhibits its adsorption ability is limited, it requires regeneration, etc., and a great deal of labor and cost is required for maintenance of the adsorption device.
又、触媒を用いるオゾンの酸化分解法には、上記のよう
な問題は無いものの、現状では触媒性能上充分に満足の
いくものであるとは言い難い。Further, although the oxidative decomposition method of ozone using a catalyst does not have the above-mentioned problems, it cannot be said that the catalyst performance is fully satisfactory at present.
本発明は、従来のオゾン除去方法が有していたこれらの
問題を解決するためになされたものであって、その目的
とするところは、従来方法に比へてオゾンの除去能力に
優れるオゾン分解用触媒を提供することにある。The present invention was made to solve these problems that conventional ozone removal methods had, and its purpose is to provide an ozone decomposition method that has superior ozone removal ability compared to conventional methods. The purpose of this invention is to provide a catalyst for
く問題を解決するための手段〉
上記目的を達成するための本発明に係るオゾン分解用触
媒は、クレーと二酸化マンガン、クレーと二酸化マンガ
ン及び二酸化チタン、及びこれらで用いられる二酸化マ
ンガンの一部にかえて、鋼（Ｃｕ） 、コバルＩ・（Ｃ
ｏ）、鉄（Ｆｅ）、ニッケル（Ｎｉ）、銀（Ａｇ）など
から選ばれる少なくとも一種以上の金属の酸化物を含有
することを特徴とする。Means for Solving the Problems> The ozone decomposition catalyst according to the present invention for achieving the above object contains clay and manganese dioxide, clay and manganese dioxide and titanium dioxide, and a part of the manganese dioxide used in these. On the contrary, steel (Cu), Kobal I・(C
o) is characterized by containing an oxide of at least one metal selected from iron (Fe), nickel (Ni), silver (Ag), etc.
クレーと二酸化マンガン又は、クレーと二酸化マンガン
及び二酸化チタンとからなる触媒どしては、クレー／Ｍ
ｎ Ｏ２、クレー／ＭｎＯ２／ＴｉＯ２などが例示され
る。ここで二酸化マンガンの含有率は酸化物重量比で、
２Ｏ〜９０％であることが望ましい。二酸化マンガンの
含有率が上記範囲以下では、この触媒の性能は充分では
なく、又、二酸化マンガンの含有率が上記範囲以上では
、その添加量に見合う性能の向上をもたらすことが出来
なかった。又、これらの触媒は、二酸化マンガに限定さ
れず、例えばハニカム状、ペレット状、円柱状、板状、
パイプ状等、種々の形状のものを用いることができる。The catalyst consisting of clay and manganese dioxide or clay, manganese dioxide and titanium dioxide is clay/M
Examples include nO2, clay/MnO2/TiO2, and the like. Here, the content of manganese dioxide is the oxide weight ratio,
It is desirable that it is 20 to 90%. When the content of manganese dioxide is below the above range, the performance of this catalyst is not sufficient, and when the content of manganese dioxide is above the above range, the performance cannot be improved commensurate with the amount added. In addition, these catalysts are not limited to manga dioxide, but may have a honeycomb shape, a pellet shape, a columnar shape, a plate shape,
Various shapes such as a pipe shape can be used.
触媒中の活性成分含有率は、５０％以上が好ましく、７
５％以上がより好ましい。The active component content in the catalyst is preferably 50% or more, and 7
More preferably 5% or more.
触媒は、含浸法、混練法、共沈法、沈澱法、酸化物混合
法等の既知の製法を適宜選択して製造することができる
。触媒の製造においては、触媒に賦形性を与えるために
成形助剤を添加したり、機械強度等を向上させるために
無機繊維等の補強剤有機バインダー等を適宜添加したり
してもよい。The catalyst can be manufactured by appropriately selecting a known manufacturing method such as an impregnation method, a kneading method, a coprecipitation method, a precipitation method, or an oxide mixing method. In the production of the catalyst, a shaping aid may be added to give the catalyst shapeability, and reinforcing agents such as inorganic fibers, organic binders, etc. may be added as appropriate to improve mechanical strength and the like.
オゾン分解の際の反応温度は、０〜４０℃が好ましく、
１０〜３０℃がより好ましい。０℃未満の場合、反応速
度が遅くなるからであり、４０℃わ越える場合、新たに
昇温のためのエネルギーを必要とし不経済であるからで
ある。The reaction temperature during ozonolysis is preferably 0 to 40°C,
10-30 degreeC is more preferable. This is because if the temperature is less than 0°C, the reaction rate becomes slow, and if it exceeds 40°C, additional energy is required to raise the temperature, which is uneconomical.
また、触媒と反応ガスとの接触は、５〜５０の面積速度
（Ａ Ｖ ； ａｒｅａ Ｖｅｌｏｃｉｔｙ ）で行う
ことが好ましい。これは、面積速度が５未満であると触
媒が多く必要になるからであり、面積速度が５０ンの一
部を、銅（Ｃｕ）、コバルト（ｃｏ）、鉄（Ｆｅ）、ニ
ッケル（Ｎｉ）、銀（Ａｇ）などから選ばれる少なくと
も一種以上の金属の酸化物で置き換えることによって、
より一層の性能の向上がもたらされる。これらの好適な
置換率は、酸化物換算で１〜３０％である。置換率が上
記範囲以下ではこれらを置換することによる相乗効果は
もたらされず、置換率が上記範囲以上では、その置換率
に見合うだけの性能の向上はもたらされなかった。こう
した触媒としては、ＭｎＯ２／ＣｕＯ２／クレー（及び
ＭｎＯ２／ＣｕＯ２／クレー／ＴｉＯ２以下同様）、Ｍ
ｎＯ２／Ｃｏ３Ｏ４／クレー、ＭｎＯ，、／Ｆｅ２Ｏ３
／クレー、ＭｎＯ３／Ｎｉｐ／ｎＯ３／Ｎミル／クレー
ｇ２Ｏ／クレーなどが例示される。又、これらの触媒に
用いられるクレーは、パイロフィライト、タルク、雲母
、緑泥石、モンモリロナイト、カオリン、ハロイサイト
などの層状粘土鉱物であり木節粘土や蛙目粘土などを例
示することが出来る。Further, the contact between the catalyst and the reaction gas is preferably carried out at an area velocity (A V ) of 5 to 50. This is because if the areal velocity is less than 5, a large amount of catalyst is required, and a part of the catalyst with an areal velocity of 50 is used as copper (Cu), cobalt (co), iron (Fe), or nickel (Ni). , by replacing it with an oxide of at least one metal selected from silver (Ag), etc.
Further performance improvement is brought about. A suitable substitution rate for these is 1 to 30% in terms of oxide. When the substitution rate was below the above range, no synergistic effect was brought about by substituting them, and when the substitution rate was above the above range, an improvement in performance commensurate with the substitution rate was not brought about. Such catalysts include MnO2/CuO2/clay (and MnO2/CuO2/clay/TiO2 and so on), MnO2/CuO2/clay/TiO2, etc.
nO2/Co3O4/clay, MnO,,/Fe2O3
/clay, MnO3/Nip/nO3/Nmil/clay g2O/clay, and the like. The clays used in these catalysts are layered clay minerals such as pyrophyllite, talc, mica, chlorite, montmorillonite, kaolin, and halloysite, and examples include kibushi clay and frog's eye clay.
本発明方法において用いられる触媒の形状は特を越える
と効率が低く所定の分解率が得られないからである。こ
こで、面積速度とは、反応量（ＮｖｙＦ／ｕ、ｕ ：Ｈ
ｒ）を単位容積の触媒あたりのガス接触面積（ぜ／−）
で除した値である。This is because if the shape of the catalyst used in the method of the present invention exceeds a certain limit, the efficiency will be low and a predetermined decomposition rate cannot be obtained. Here, the areal velocity is the reaction amount (NvyF/u, u :H
r) is the gas contact area per unit volume of catalyst (ze/-)
This is the value divided by .
〈実施例〉
以下、本発明を実施例に基づいて詳細に説明する。但し
、本発明は下記の実施例に限定されるものではない。<Examples> Hereinafter, the present invention will be described in detail based on Examples. However, the present invention is not limited to the following examples.
Ａ、触媒少詞製
実施例１
比表面積４８Ｊ／ｇのＭｎＯ２７０４ｇと木節粘土１５
５ｇを水１見中にｊｌＪ濁し、これにさらにガラスピー
ズ２５０ｇを加えて３０分間撹拌混合してスラリーを得
た。このスラリーを空隙率８１％、ピッチ４．０ｍｍの
セラミックスファイバー製のコルゲート状ハニカムに含
浸させて、ＭｎＯ２／クレー（重量比８２：１Ｂ）を担
持率９５％で担持した二元触媒を得た。A. Example 1 of catalyst particulate production: 2704 g of MnO with a specific surface area of 48 J/g and Kibushi clay 15
5 g of the mixture was stirred in 1 cup of water, and 250 g of glass peas were further added thereto, followed by stirring and mixing for 30 minutes to obtain a slurry. This slurry was impregnated into a corrugated honeycomb made of ceramic fibers with a porosity of 81% and a pitch of 4.0 mm to obtain a two-way catalyst in which MnO2/clay (weight ratio 82:1B) was supported at a loading rate of 95%.
実施例２
実施例１において、木節粘土を７８ｇとし、チタニアゾ
ル（Ｔ ｉ Ｏ２含有量＝１５０ｇ／見）５１７威及び
水５００截を加えて懸濁液とした以外は実施例１と同様
にして、ＭｎＯ２／ＴｉＯ２／クレー（重量比８２：９
：９）を担持率９５％で担持した三元触媒を得た。Example 2 The same procedure as in Example 1 was carried out except that in Example 1, Kibushi clay was changed to 78 g, and 517 g of titania sol (T i O2 content = 150 g/ml) and 500 g of water were added to make a suspension. , MnO2/TiO2/clay (weight ratio 82:9
A three-way catalyst was obtained in which 9) was supported at a loading rate of 95%.
実施例３
実施例１において、比表面積４８ｎｒ／ｇのＭｎ０２３
０ｇと木節粘土を９５ｇ及び水５００蔽を加えて懸濁液
とした以外は実施例１と同様にして、ＭｎＯ２／クレー
（重量比２４ニア６）を担持率１０３％て担持した二元
触媒を得た。Example 3 In Example 1, Mn023 with a specific surface area of 48nr/g
A two-way catalyst was prepared in the same manner as in Example 1 except that 95 g of Kibushi clay and 500 g of water were added to form a suspension, with MnO2/clay (weight ratio 24 near 6) being supported at a loading rate of 103%. I got it.
実施例４
実施例３において、木節粘土を７０ｇとしチタニアゾル
１７０威を加えること以外は実施例３と同様にして、Ｍ
ｎＯ２／ＴｉＯ２／クレー（重量比２４：２Ｏ：５６）
を担持率１０１％で担持した三元触媒を得た。Example 4 In Example 3, M
nO2/TiO2/clay (weight ratio 24:2O:56)
A three-way catalyst was obtained in which the catalyst was supported at a loading rate of 101%.
実施例５
実施例１において、比表面積４８イ／ｇのＭｎ０２３０
ｇｇのうち、４３ｇをＣｕＯにかえること以外は実施例
１と同様にして、ＭｎＯ２／ＮｉＯ／クレー（重量比７
６：６：１Ｂ）を担持率１００％で担持した三元触媒を
得た。Example 5 In Example 1, Mn0230 with a specific surface area of 48 i/g
MnO2/NiO/clay (weight ratio 7
A three-way catalyst was obtained in which 6:6:1B) was supported at a loading rate of 100%.
実施例９
実施例１において、比表面積４８ｍ’／ｇのＭｎ０９７
０４ｇのうち、１７ｇをＡｇ２Ｏにかえること以外は実
施例１と同様にして、Ｍ ｎ Ｏ２／ Ａｇ２Ｏ／クレ
ー（重量比８０：２：１８）を担持率１００％で担持し
た三元触媒を得た。Example 9 In Example 1, Mn097 with a specific surface area of 48 m'/g
A three-way catalyst in which MnO2/Ag2O/clay (weight ratio 80:2:18) was supported at a loading rate of 100% was obtained in the same manner as in Example 1 except that 17g of 04g was changed to Ag2O. .
実施例１０
実施例５において、木節粘土を１５５ｇを７８ｇとし、
これにかえてチタニアゾル１７０威えること以外は実施
例５と同様にして、ＭｎＯ２／Ｃｕｂ／Ｔｉｅ２／クレ
ー（重量比７７：５：９：９）を担持率１０３％で担持
した三元触媒を得た。Example 10 In Example 5, 155g of Kibushi clay was changed to 78g,
A three-way catalyst with MnO2/Cub/Tie2/clay (weight ratio 77:5:9:9) supported at a loading rate of 103% was obtained in the same manner as in Example 5 except that titania sol 170 was used instead. Ta.
実施例１１
実施例９において、木節粘土を１５５ｇを７８ｇとして
、これにチタニアゾル５１７截を加えること以外は実施
例９と同様にして、Ｍ ｎ Ｏ２／ Ａと以外は実施例
１と同様にして、ＭｎＯ２／Ｃ′ｕＯ／クレー（重量比
？７：５：１Ｂ）を担持率９７％で担持した三元触媒を
得た。Example 11 In Example 9, 155 g of Kibushi clay was changed to 78 g, and titania sol 517 cut was added to this in the same manner as in Example 9, and in the same manner as in Example 1 except for M n O2/A. A three-way catalyst was obtained in which MnO2/C'uO/clay (weight ratio: 7:5:1B) was supported at a loading rate of 97%.
実施例６
実施例１において、比表面積４８ｎ？／ｇのＭｎ０２７
０４ｇのうち、１７ｇを比表面積５３ｄ／ｇのＣｏ３Ｏ
４にかえること以外は実施例１と同様にして、ＭｎＯ２
／ＣＯ３Ｏ４／クレー（重量比８０：２：１Ｂ）を担持
率１０１％で担持した三元触媒を得た。Example 6 In Example 1, the specific surface area was 48n? /g Mn027
Of 04g, 17g is Co3O with a specific surface area of 53d/g.
In the same manner as in Example 1 except that MnO2
A three-way catalyst was obtained in which /CO3O4/clay (weight ratio 80:2:1B) was supported at a loading rate of 101%.
実施例７
実施例１において、比表面積４８ｍ’／ｇのＭｎ０９７
０４ｇのうち、７０ｇを比表面積５３ｄ１ｇのＦｅ２Ｏ
３にかえること以外は実施例１と同様にして、ＭｎＯ２
／Ｆｅ２Ｏ３／クレー（重量比７４：８：１Ｂ）を担持
率９８％で担持した三元触媒を得た。Example 7 In Example 1, Mn097 with a specific surface area of 48 m'/g
Of 04g, 70g is Fe2O with a specific surface area of 53d1g
In the same manner as in Example 1 except that MnO2
A three-way catalyst was obtained in which Fe2O3/clay (weight ratio 74:8:1B) was supported at a loading rate of 98%.
実施例８
実施例１において、比表面積４８ｄ／ｇのＭ ｎ０２７
０４ｇのうち、５０ｇをＮｉＯにかえるこｇ２ｏ、／Ｔ
’ｔｏ□／クレー（重量比８０：２：９：９）を担持率
１０２％で担持した三元触媒を得た。Example 8 In Example 1, M n027 with a specific surface area of 48 d/g
04g, change 50g to NiO g2o, /T
A three-way catalyst was obtained in which 'to□/clay (weight ratio 80:2:9:9) was supported at a loading rate of 102%.
比較例
比表面積４８ｖ／／ｇのＭｎ０２３０ｇと、四塩化チタ
ンとシリカゾルとの混合物（Ｔｉ０２：５ＩＯ２が１
： １）７０ｇとを撹拌混合しつつ、アンモニアガスを
吹き込んで中和反応を行い、スラリー状の沈殿物を生成
させた。得られた沈殿物を充分に水洗した後、温度５０
０℃で３時間焼成して比表面積１６２イ／ｇの三元触媒
ＭｎＯ２／ＴｉＯ２／５ｉ０２ （重量比３０ ：３５
：３５）を得た。Comparative Example A mixture of 230g of Mn0 with a specific surface area of 48v//g, titanium tetrachloride and silica sol (Ti02:5IO2 is 1
: 1) While stirring and mixing 70 g, ammonia gas was blown in to perform a neutralization reaction, and a slurry-like precipitate was generated. After thoroughly washing the obtained precipitate with water, the temperature was 50°C.
A three-way catalyst MnO2/TiO2/5i02 (weight ratio 30:35
:35) was obtained.
Ｂ、触媒活性試験
上記実施例１〜９及び参考例で得た各触媒について、第
１図にそのフローシートを示すような試験方式を用いて
下記反応条件で触媒活性試験を行った。図において、（
１〉はオゾン発生器であり、これに導入されたエアーよ
り適切な濃度のオゾンを発生させ、このオゾン含有エア
ーを触媒Ｎ（２）第１表
に導く。オゾン分解率は、（３）のオゾン分析計にて測
定される触媒層の入口及び出口の値により次式で求めら
れる。B. Catalytic Activity Test Catalytic activity tests were conducted on each of the catalysts obtained in Examples 1 to 9 and Reference Examples above under the following reaction conditions using the test method whose flow sheet is shown in FIG. In the figure, (
1> is an ozone generator, which generates ozone at an appropriate concentration from the air introduced therein, and leads this ozone-containing air to catalyst N(2) Table 1. The ozone decomposition rate is determined by the following equation based on the values at the inlet and outlet of the catalyst layer measured by the ozone analyzer in (3).
（反応条件） 空間速度：２Ｏ０００／Ｈｒ 反応温度：２Ｏ℃ 上記試験結果を表１に示す。(Reaction conditions) Space velocity: 20000/Hr Reaction temperature: 2O℃ The above test results are shown in Table 1.
（以下、余白）
上記表より明らかなように、実施例１〜１１で得たいず
れの触媒も、参考例で得た触媒に比べて高いオゾン分解
率（％）を有している。(Hereinafter, blank space) As is clear from the above table, all the catalysts obtained in Examples 1 to 11 have a higher ozone decomposition rate (%) than the catalyst obtained in the reference example.
以上の試験結果より、本発明方法による触媒は、高いオ
ゾン分解性能を有するものであることがわかる。The above test results show that the catalyst according to the method of the present invention has high ozone decomposition performance.
〈発明の効果〉
本発明に係るオゾン分解触媒は、オゾンを効率良く除去
することができる優れた効果を有する。<Effects of the Invention> The ozone decomposition catalyst according to the present invention has an excellent effect of efficiently removing ozone.
第１図は触媒活性試験のフローシートである。 （１） オゾン発生器 （２） 触媒層 く３） オゾン分析計 第１図 FIG. 1 is a flow sheet of the catalyst activity test. (1) Ozone generator (2) Catalyst layer 3) Ozone analyzer Figure 1
Claims (3)
するオゾン分解用触媒(1) Ozone decomposition catalyst characterized by containing clay and manganese dioxide
タンを含有することを特徴とするオゾン分解用触媒(2) Within the scope of claim (1), the ozone decomposition catalyst further contains titanium dioxide.
（Ｃｕ）、コバルト（Ｃｏ）、鉄（Ｆｅ＿２Ｏ＿３）、
ニッケル（ＮｉＯ）、銀（Ａｇ＿２Ｏ）などから選ばれ
る少なくとも一種以上の金属酸化物を含有することを特
徴とするオゾン分解用触媒(3) Within the scope of claims (1) and (2), copper (Cu), cobalt (Co), iron (Fe_2O_3),
An ozone decomposition catalyst characterized by containing at least one metal oxide selected from nickel (NiO), silver (Ag_2O), etc.
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63301403A JPH02149343A (en) | 1988-11-28 | 1988-11-28 | Ozone decomposition catalyst |
| EP92101927A EP0487506A1 (en) | 1988-11-28 | 1989-11-28 | Catalyst and method for ozone decomposition |
| DE89312309T DE68909376T2 (en) | 1988-11-28 | 1989-11-28 | Catalyst and process for ozone decomposition. |
| EP89312309A EP0371740B1 (en) | 1988-11-28 | 1989-11-28 | Catalyst and method for ozone decomposition |
| US07/838,822 US5221649A (en) | 1988-11-28 | 1992-02-21 | Catalysts and methods for ozone decomposition |
| US07/865,649 US5232886A (en) | 1988-11-28 | 1992-04-10 | Catalysts and methods for ozone decomposition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63301403A JPH02149343A (en) | 1988-11-28 | 1988-11-28 | Ozone decomposition catalyst |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02149343A true JPH02149343A (en) | 1990-06-07 |
Family
ID=17896451
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63301403A Pending JPH02149343A (en) | 1988-11-28 | 1988-11-28 | Ozone decomposition catalyst |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02149343A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04326940A (en) * | 1991-04-25 | 1992-11-16 | Matsushita Electric Ind Co Ltd | Catalyst for decomposition of ozone |
| JPH08192054A (en) * | 1995-01-13 | 1996-07-30 | Showa Denko Kk | Ozone decomposition catalyst |
| KR100721097B1 (en) * | 2006-08-29 | 2007-05-23 | 김성일 | Catalysts for producing polytetramethylene ether glycol diesters using latrite and methods for producing polytetramethylene ether glycol diesters using the catalyst |
| CN105771635A (en) * | 2016-04-11 | 2016-07-20 | 苏州工业园区鸿基洁净科技有限公司 | Method and device for removing vaporized hydrogen peroxide |
| JP2017534448A (en) * | 2014-10-30 | 2017-11-24 | ビーエーエスエフ コーポレーション | Base metal catalysts for treating ozone and volatile organic compounds present in air sources |
-
1988
- 1988-11-28 JP JP63301403A patent/JPH02149343A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04326940A (en) * | 1991-04-25 | 1992-11-16 | Matsushita Electric Ind Co Ltd | Catalyst for decomposition of ozone |
| JPH08192054A (en) * | 1995-01-13 | 1996-07-30 | Showa Denko Kk | Ozone decomposition catalyst |
| KR100721097B1 (en) * | 2006-08-29 | 2007-05-23 | 김성일 | Catalysts for producing polytetramethylene ether glycol diesters using latrite and methods for producing polytetramethylene ether glycol diesters using the catalyst |
| JP2017534448A (en) * | 2014-10-30 | 2017-11-24 | ビーエーエスエフ コーポレーション | Base metal catalysts for treating ozone and volatile organic compounds present in air sources |
| CN105771635A (en) * | 2016-04-11 | 2016-07-20 | 苏州工业园区鸿基洁净科技有限公司 | Method and device for removing vaporized hydrogen peroxide |
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