JPH1080621A - Deodorizing device and deodorizing method - Google Patents
Deodorizing device and deodorizing methodInfo
- Publication number
- JPH1080621A JPH1080621A JP8236853A JP23685396A JPH1080621A JP H1080621 A JPH1080621 A JP H1080621A JP 8236853 A JP8236853 A JP 8236853A JP 23685396 A JP23685396 A JP 23685396A JP H1080621 A JPH1080621 A JP H1080621A
- Authority
- JP
- Japan
- Prior art keywords
- deodorizing
- adsorbent
- deodorant
- heating
- 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.)
- Pending
Links
- 230000001877 deodorizing effect Effects 0.000 title claims abstract description 120
- 238000000034 method Methods 0.000 title claims description 26
- 239000003463 adsorbent Substances 0.000 claims abstract description 41
- 238000010438 heat treatment Methods 0.000 claims abstract description 40
- 239000003054 catalyst Substances 0.000 claims abstract description 37
- AMWRITDGCCNYAT-UHFFFAOYSA-L hydroxy(oxo)manganese;manganese Chemical compound [Mn].O[Mn]=O.O[Mn]=O AMWRITDGCCNYAT-UHFFFAOYSA-L 0.000 claims abstract description 30
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 22
- 239000011959 amorphous silica alumina Substances 0.000 claims abstract description 18
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 11
- 239000002781 deodorant agent Substances 0.000 claims description 31
- 238000001179 sorption measurement Methods 0.000 claims description 24
- 239000002253 acid Substances 0.000 claims description 5
- 230000001172 regenerating effect Effects 0.000 claims description 5
- 238000013459 approach Methods 0.000 claims description 3
- 230000003197 catalytic effect Effects 0.000 claims description 3
- 229910052809 inorganic oxide Inorganic materials 0.000 claims description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 abstract description 27
- 239000007789 gas Substances 0.000 abstract description 16
- 229910021529 ammonia Inorganic materials 0.000 abstract description 12
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 abstract description 5
- 150000001299 aldehydes Chemical class 0.000 abstract description 5
- 229910000037 hydrogen sulfide Inorganic materials 0.000 abstract description 5
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 abstract description 4
- 125000006850 spacer group Chemical group 0.000 abstract description 4
- 239000000843 powder Substances 0.000 abstract description 2
- 238000000465 moulding Methods 0.000 abstract 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 24
- 230000008929 regeneration Effects 0.000 description 20
- 238000011069 regeneration method Methods 0.000 description 20
- 238000006243 chemical reaction Methods 0.000 description 13
- 238000005259 measurement Methods 0.000 description 12
- 239000000377 silicon dioxide Substances 0.000 description 12
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 11
- 238000011156 evaluation Methods 0.000 description 10
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 9
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 7
- 239000000395 magnesium oxide Substances 0.000 description 7
- 239000011247 coating layer Substances 0.000 description 6
- 238000002474 experimental method Methods 0.000 description 6
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 6
- 229910001887 tin oxide Inorganic materials 0.000 description 6
- 238000004332 deodorization Methods 0.000 description 5
- 238000002156 mixing Methods 0.000 description 5
- 239000000758 substrate Substances 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- 229910004298 SiO 2 Inorganic materials 0.000 description 3
- 229910021536 Zeolite Inorganic materials 0.000 description 3
- 239000006227 byproduct Substances 0.000 description 3
- 238000003795 desorption Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical group [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 239000010457 zeolite Substances 0.000 description 3
- 239000004113 Sepiolite Substances 0.000 description 2
- 125000003118 aryl group Chemical group 0.000 description 2
- 238000007664 blowing Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000000873 masking effect Effects 0.000 description 2
- 229910052763 palladium Inorganic materials 0.000 description 2
- 229910052697 platinum Inorganic materials 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 238000004445 quantitative analysis Methods 0.000 description 2
- 229910052624 sepiolite Inorganic materials 0.000 description 2
- 235000019355 sepiolite Nutrition 0.000 description 2
- 239000011973 solid acid Substances 0.000 description 2
- QPLDLSVMHZLSFG-UHFFFAOYSA-N Copper oxide Chemical compound [Cu]=O QPLDLSVMHZLSFG-UHFFFAOYSA-N 0.000 description 1
- 239000005751 Copper oxide Substances 0.000 description 1
- 229910006404 SnO 2 Inorganic materials 0.000 description 1
- 238000005273 aeration Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 229910000431 copper oxide Inorganic materials 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- 229910000510 noble metal Inorganic materials 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000006864 oxidative decomposition reaction Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- NDLPOXTZKUMGOV-UHFFFAOYSA-N oxo(oxoferriooxy)iron hydrate Chemical compound O.O=[Fe]O[Fe]=O NDLPOXTZKUMGOV-UHFFFAOYSA-N 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Landscapes
- Catalysts (AREA)
- Treating Waste Gases (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は脱臭装置及び脱臭方
法のうち、特にパブリックトイレに好適する脱臭装置と
この脱臭装置を用いた脱臭方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a deodorizing apparatus and a deodorizing method, and more particularly to a deodorizing apparatus suitable for public toilets and a deodorizing method using the deodorizing apparatus.
【０００２】[0002]
【従来の技術】パブリックトイレの脱臭法として、換気
によって悪臭を含む空気を強制排除する方法が従来から
採用されているが、充分な脱臭効果が得られない。そこ
で、マスキング法、オゾン脱臭法或いは吸着剤と触媒を
組み合わせた脱臭方法が考えられる。2. Description of the Related Art As a method of deodorizing a public toilet, a method of forcibly removing air containing a bad odor by ventilation has been conventionally used, but a sufficient deodorizing effect cannot be obtained. Then, a masking method, an ozone deodorizing method, or a deodorizing method using a combination of an adsorbent and a catalyst can be considered.
【０００３】マスキング法は芳香性の液体又は固体を気
化・発散させて悪臭を感覚的に分らなくする方法であ
り、芳香性物質が短期間で消失してしまうので、定期的
に且つ頻繁に交換しなければならない。[0003] The masking method is a method in which an aromatic liquid or solid is vaporized and diffused so that the odor is not sensed sensibly. Since the aromatic substance disappears in a short period of time, it is periodically and frequently replaced. Must.
【０００４】オゾン脱臭法はオゾンによって悪臭成分を
分解する方法であり、長期間に亘り脱臭効果を発揮し得
るが、オゾンを発生する装置とオゾンは有害であるので
規定濃度以上のオゾンが発生しないように余剰のオゾン
を分解する触媒が必要となり装置全体が大掛りとなる。[0004] The ozone deodorizing method is a method of decomposing malodorous components with ozone and can exert a deodorizing effect for a long period of time. However, ozone generating equipment and ozone are harmful and do not generate ozone of a specified concentration or more. As described above, a catalyst for decomposing excess ozone is required, and the entire apparatus becomes large.
【０００５】一方、吸着剤と触媒を組み合わせた脱臭方
法としては、特公昭５４−２０９５６号公報、特開平５
−１４６６８３号公報及び特開平８−３８５８４号公報
に開示されるものが知られている。On the other hand, a deodorizing method using a combination of an adsorbent and a catalyst is disclosed in Japanese Patent Publication No. 54-20956,
Japanese Patent Application Laid-Open Nos. 146683 and 8-38584 are known.
【０００６】特公昭５４−２０９５６号公報に開示され
る内容は、アンモニアガスを分解する方法であり、酸化
第二鉄とマンガン酸化物との混合物からなる触媒を比較
的低い温度（２６０℃〜２９０℃）に加熱し、この触媒
にアンモニアガスを接触せしめることで、ＮＯやＮＯ2
等の有害な副生物の生成を抑制しつつ、アンモニアガス
を分解するというものである。[0006] Japanese Patent Publication No. 54-20956 discloses a method for decomposing ammonia gas, in which a catalyst comprising a mixture of ferric oxide and manganese oxide is treated at a relatively low temperature (260 ° C to 290 ° C). ° C) and contacting the catalyst with ammonia gas to produce NO or NO 2
And the like, while decomposing ammonia gas while suppressing generation of harmful by-products.
【０００７】また、特開平５−１４６６８３号公報に開
示される脱臭装置は、触媒被覆層を備え、この触媒被覆
層の近傍にヒータを配置している。触媒被覆層は吸着剤
と触媒を含んで成り、吸着剤としては活性アルミナとゼ
オライトを使用し、触媒としては白金族金属を使用して
いる。そしてその作用は、触媒被覆層の非加熱時にあっ
ては、触媒被覆層中の吸着剤によって臭気成分を吸着
し、そして吸着能の限界がくる前に、触媒被覆層を加熱
することで、吸着剤に吸着されている臭気成分を触媒に
よって酸化分解し、吸着剤から臭気成分を取除き、吸着
剤を再生し、これを繰り返すことで、長期間に亘って脱
臭機能を維持するようにしている。Further, the deodorizing device disclosed in Japanese Patent Application Laid-Open No. 5-146683 has a catalyst coating layer, and a heater is arranged near the catalyst coating layer. The catalyst coating layer includes an adsorbent and a catalyst. The adsorbent uses activated alumina and zeolite, and the catalyst uses a platinum group metal. The effect is that, when the catalyst coating layer is not heated, the odor component is adsorbed by the adsorbent in the catalyst coating layer, and the catalyst coating layer is heated before the adsorbing capacity reaches its limit. The odor component adsorbed on the adsorbent is oxidatively decomposed by the catalyst, the odor component is removed from the adsorbent, the adsorbent is regenerated, and the repetition is performed to maintain the deodorizing function for a long time. .
【０００８】更に、特開平８−３８５８４号公報に開示
される脱臭装置は、前記特開平５−１４６６８３号公報
と同様に、吸着剤と触媒を含んだ脱臭体を備え、この脱
臭体の非加熱時には、吸着剤によって臭気成分を吸着
し、また脱臭体を加熱することで、吸着剤に吸着された
臭気成分を分解除去して吸着剤を再生するというもので
あり、吸着剤としてはゼオライトやセピオライト等の無
機吸着剤が挙げられ、また触媒として酸化銅と貴金属
（ＰtやＰd）の両方を含んだものが挙げられている。Further, the deodorizing device disclosed in JP-A-8-38584 is provided with a deodorizing body containing an adsorbent and a catalyst similarly to the above-mentioned JP-A-5-146683. At times, odor components are adsorbed by the adsorbent, and the deodorizing body is heated to decompose and remove the odor components adsorbed by the adsorbent to regenerate the adsorbent. Zeolite or sepiolite is used as the adsorbent. And a catalyst containing both copper oxide and a noble metal (Pt or Pd) as a catalyst.
【０００９】[0009]
【発明が解決しようとする課題】上述した吸着剤と触媒
とを組み合わせたものは、他の脱臭手段に比べて有利な
点が多いが、常に吸着剤及び触媒という異なる２つの材
料を用意しなければならない。The above-mentioned combination of the adsorbent and the catalyst has many advantages as compared with other deodorizing means, but two different materials, that is, the adsorbent and the catalyst must always be prepared. Must.
【００１０】また、吸着剤と触媒とを組み合わせた脱臭
体をパブリックトイレに適用した場合には独特の問題が
生じる。即ち、パブリックトイレ内は一般に湿潤な雰囲
気となっており、湿潤な環境下で吸着剤と触媒とを混合
した脱臭体を使用した場合、吸着剤として用いられるゼ
オライトやセピオライトは除湿剤としても優れた性能を
発揮していることからも分るように、もともと水分の吸
着性能が高い。したがって、一般の生活空間よりも湿度
が高いパブリックトイレ内に従来の吸着剤と触媒とを組
み合わせた脱臭装置を設けた場合には、吸着剤の細孔へ
の水分の吸着が優先的に生じ、悪臭成分に対しては本来
の吸着能力を発揮できず、吸着剤の加熱再生を頻繁に繰
り返すことになり、充分な脱臭効果が得られない。[0010] When a deodorant obtained by combining an adsorbent and a catalyst is applied to a public toilet, a unique problem arises. That is, public toilets generally have a humid atmosphere, and when a deodorant mixture of an adsorbent and a catalyst is used in a humid environment, zeolite and sepiolite used as the adsorbent are also excellent as dehumidifiers. As can be seen from the performance, it originally has a high moisture adsorption performance. Therefore, when a deodorizing device combining a conventional adsorbent and a catalyst is installed in a public toilet having a higher humidity than a general living space, adsorption of moisture to the pores of the adsorbent occurs preferentially, The original adsorption ability cannot be exhibited for the malodorous component, and the heat regeneration of the adsorbent is frequently repeated, so that a sufficient deodorizing effect cannot be obtained.
【００１１】また、触媒としてＰtやＰdを用いて短時間
のうちに加熱再生を行うためには、加熱温度を３００〜
４００℃まで上げなければならず、ＮＯやＮＯ2等の有
害な副生物を生成する結果を招いてしまう。Further, in order to heat and regenerate in a short time using Pt or Pd as a catalyst, the heating temperature must be 300-300.
The temperature must be raised to 400 ° C., resulting in the formation of harmful by-products such as NO and NO 2 .
【００１２】[0012]
【課題を解決するための手段】本発明者は、比表面積が
大きく非晶質の物質は吸着剤として作用し、更にマンガ
ン酸化物はアルデヒド類や硫化水素をも分解するという
知見に基づいて本願の第１発明を成し、また、表面に酸
点が存在する固体酸材料は、水蒸気の影響を受けずに塩
基性分子である窒素系悪臭成分を選択的に吸着するとい
う知見に基づいて本願の第２発明を成したものである。The present inventors have made the present invention based on the finding that an amorphous substance having a large specific surface area acts as an adsorbent, and that manganese oxide also decomposes aldehydes and hydrogen sulfide. The present invention is based on the finding that a solid acid material having acid sites on its surface selectively adsorbs nitrogen-based malodorous components, which are basic molecules, without being affected by water vapor. The second aspect of the present invention has been achieved.
【００１３】即ち、第１発明に係る脱臭装置は、比表面
積が200m2/g以上でほぼ非晶質のマンガン酸化物からな
る脱臭体と、この脱臭体を加熱する加熱手段とを備える
構成とした。That is, the deodorizing apparatus according to the first aspect of the present invention is configured to include a deodorizing body made of a substantially amorphous manganese oxide having a specific surface area of 200 m2 / g or more and a heating means for heating the deodorizing body. .
【００１４】ここで、パブリックトイレ内には以下の
（表１）及び（表２）に示すように、窒素系以外の臭気
成分として、アルデヒド類や硫化水素等の悪臭成分も微
量ではあるが共存する。そして、比表面積が大きな非晶
質のマンガン酸化物には常温での酸化作用がある。即
ち、アルデヒド類については接触すると同時に酢酸に酸
化して吸着し、硫化水素については常温において吸着し
て酸化分解する。したがって、触媒として比表面積が20
0m2/g以上でほぼ非晶質のマンガン酸化物はパブリック
トイレの脱臭に有効である。Here, as shown in the following (Table 1) and (Table 2), the odor components other than the nitrogen-based odor components such as aldehydes and hydrogen sulfide coexist in the public toilet, although they are trace amounts. I do. An amorphous manganese oxide having a large specific surface area has an oxidizing effect at normal temperature. That is, aldehydes are oxidized and adsorbed on acetic acid at the same time as they come into contact, and hydrogen sulfide is adsorbed and decomposed by oxidation at room temperature. Therefore, the specific surface area of the catalyst is 20
Manganese oxide, which is substantially amorphous at 0 m 2 / g or more, is effective for deodorizing public toilets.
【００１５】[0015]
【表１】 [Table 1]
【００１６】[0016]
【表２】 [Table 2]
【００１７】また、第２発明に係る脱臭装置は、窒素系
臭気成分を選択的に吸着する吸着剤からなる脱臭体と、
この脱臭体を加熱する加熱手段とを備える構成とし、更
に、第３発明に係る脱臭装置は、窒素系臭気成分を選択
的に吸着する吸着剤及び触媒を含んだ脱臭体と、この脱
臭体を加熱する加熱手段とを備える構成とした。Further, the deodorizing apparatus according to the second invention comprises a deodorizing body comprising an adsorbent for selectively adsorbing nitrogenous odor components;
The deodorizing apparatus according to the third aspect of the present invention further comprises a heating means for heating the deodorizing body, and further comprises a deodorizing body including an adsorbent and a catalyst for selectively adsorbing a nitrogen-based odor component; And a heating means for heating.
【００１８】ここで、窒素系臭気成分を選択的に吸着す
る吸着剤としては、表面に酸点が存在する無機系酸化
物、更に具体的には非晶質のシリカアルミナが挙げられ
る。即ち、非晶質のシリカアルミナは固体酸材料であり
細孔を有しないので水分を吸着しないので水蒸気の影響
を受けることはなく、表面の酸点によって塩基性分子で
ある窒素系臭気成分については吸着する。Here, examples of the adsorbent for selectively adsorbing nitrogen-based odor components include inorganic oxides having acid sites on the surface, and more specifically, amorphous silica alumina. That is, since amorphous silica alumina is a solid acid material and has no pores and does not adsorb moisture, it is not affected by water vapor, and nitrogen-based odor components which are basic molecules depending on acid points on the surface are not affected. Adsorb.
【００１９】ここで、触媒を比表面積が200m2/g以上の
ほぼ非晶質のマンガン酸化物とし、吸着剤を非晶質のシ
リカアルミナとした場合には、非晶質のシリカアルミナ
とほぼ非晶質のマンガン酸化物との重量比を９０／１０
〜５０／５０とすることが好ましい。９０／１０よりも
非晶質のシリカアルミナの割合が多くなると、加熱再生
の際に、触媒による分解反応が不充分となり、未分解の
悪臭成分が放出される。また逆に５０／５０よりも非晶
質のシリカアルミナの割合が少なくなると、常温での充
分な吸着性能が得られない。Here, when the catalyst is made of substantially amorphous manganese oxide having a specific surface area of 200 m 2 / g or more and the adsorbent is made of amorphous silica alumina, the catalyst becomes almost amorphous silica alumina. The weight ratio to the amorphous manganese oxide is 90/10
It is preferably set to 50/50. If the ratio of the amorphous silica alumina is larger than 90/10, the decomposition reaction by the catalyst becomes insufficient at the time of heating and regeneration, and undecomposed malodorous components are released. Conversely, if the ratio of amorphous silica alumina is less than 50/50, sufficient adsorption performance at normal temperature cannot be obtained.
【００２０】前記した第１発明に係る脱臭装置による脱
臭方法は、通常時は脱臭体の吸着作用によって悪臭成分
を吸着し、吸着能の限界に近づいた時点で脱臭体を加熱
し、この加熱により脱臭体に吸着されている悪臭成分を
離脱させ、脱臭体の触媒作用によって離脱した悪臭成分
を分解し脱臭体を再生するサイクルを繰り返す。In the deodorizing method using the deodorizing apparatus according to the first aspect of the present invention, the deodorant is usually adsorbed by the deodorizing body by the adsorbing action of the deodorizing body, and the deodorizing body is heated at the time when the adsorbing capacity is approached, and the heating is performed. The cycle of releasing the malodorous component adsorbed on the deodorant, decomposing the malodorous component released by the catalytic action of the deodorant and regenerating the deodorant is repeated.
【００２１】また、前記した第２発明に係る脱臭装置に
よる脱臭方法は、通常時は脱臭体の吸着作用によって悪
臭成分を吸着し、吸着能の限界に近づいた時点で脱臭体
を加熱し、脱臭体に吸着されている悪臭成分を放出して
脱臭体を再生するサイクルを繰り返す。In the deodorizing method using the deodorizing apparatus according to the second aspect of the present invention, the deodorizing element is normally adsorbed by the adsorbing action of the deodorizing element, and the deodorizing element is heated at the time when the adsorbing capacity of the deodorizing element approaches the limit. The cycle of releasing malodorous components adsorbed on the body and regenerating the deodorized body is repeated.
【００２２】また、前記した第３発明に係る脱臭装置に
よる脱臭方法は、通常時は吸着剤によって悪臭成分を選
択的に吸着し、吸着能の限界に近づいた時点で脱臭体を
加熱し、この加熱により脱臭体に吸着されている悪臭成
分を離脱させ、触媒によって離脱した悪臭成分を分解し
吸着剤を再生するサイクルを繰り返す。In the deodorizing method using the deodorizing apparatus according to the third aspect of the present invention, the odorous component is normally selectively adsorbed by the adsorbent, and the deodorizing body is heated when the adsorbing capacity is approached. The cycle of releasing the malodorous component adsorbed on the deodorant by heating, decomposing the malodorous component released by the catalyst, and regenerating the adsorbent is repeated.
【００２３】上記の本発明に係るいずれの脱臭方法も、
水分の多い湿潤な雰囲気、例えば相対湿度６０％以上の
湿潤空気の場合に効果的である。In any of the above-mentioned deodorizing methods according to the present invention,
This is effective for a humid atmosphere with a lot of moisture, for example, humid air having a relative humidity of 60% or more.
【００２４】ところで、パブリックトイレの脱臭におい
て必要な吸引風量は設置される小便器の数によりほぼ決
定される。例えば、小便器が３台設置される場合、脱臭
に必要な吸引風量は毎分２m3である。一方、脱臭装置は
トイレの床上や小便器ユニットのパネルの裏側に設置さ
れるため、コンパクトであることが要求され、脱臭ユニ
ットに許容される体積は500cc乃至1,000cc程度である。
したがって、パブリックトイレにおける脱臭ユニットに
は、空間速度（ＳＶ）100,000h-1程度で十分な除去率を
示すことが要求される。脱臭操作を低コストで行うに
は、常温吸着−加熱再生のサイクルにおいて、常温吸着
の時間をなるべく長く、加熱再生の時間を短くすること
が望ましい。しかし脱臭処理すべき悪臭成分が高濃度で
あり、また上記空間速度の制約が厳しいことから、常温
吸着により十分な除去性能を維持できる時間は１〜２時
間に制限される。The amount of suction air required for deodorizing a public toilet is substantially determined by the number of urinals installed. For example, when three urinals are installed, the suction air volume required for deodorization is 2 m 3 per minute. On the other hand, since the deodorizing device is installed on the floor of the toilet or behind the panel of the urinal unit, it is required to be compact, and the volume allowed for the deodorizing unit is about 500 cc to 1,000 cc.
Therefore, a deodorizing unit in a public toilet is required to exhibit a sufficient removal rate at a space velocity (SV) of about 100,000h- 1 . In order to perform the deodorizing operation at a low cost, it is desirable to shorten the time of the normal temperature adsorption and the time of the heat regeneration in the normal temperature adsorption-heating regeneration cycle as much as possible. However, since the concentration of the malodorous component to be deodorized is high and the space velocity is severely restricted, the time during which sufficient removal performance can be maintained by normal temperature adsorption is limited to 1 to 2 hours.
【００２５】また、吸着剤の加熱反応触媒反応による再
生に要する温度は２００〜３００℃、より好ましくは２
２０〜２５０℃である。この温度範囲より低温だと吸着
剤からの脱着が活発でなく、また触媒が十分に活性化さ
れないため、再生に長時間を要する。また反応温度が高
くなるにつれ、アンモニアの酸化分解反応生成物中のＮ
ＯX濃度が高くなるため、上記温度範囲より高温で処理
することも好ましくない。上記温度範囲内の処理により
吸着剤を再生するのに要する時間は、１０〜１５分であ
る。The temperature required for regeneration of the adsorbent by the heat reaction catalytic reaction is 200 to 300 ° C., more preferably 2 to 300 ° C.
20-250 ° C. If the temperature is lower than this temperature range, desorption from the adsorbent is not active and the catalyst is not sufficiently activated, so that a long time is required for regeneration. In addition, as the reaction temperature increases, N in the oxidative decomposition reaction product of ammonia increases.
Since O X concentration becomes undesirably high also be treated at a temperature higher than the above temperature range. The time required to regenerate the adsorbent by treatment within the above temperature range is 10 to 15 minutes.
【００２６】また加熱再生時は送風を止めておくことが
望ましい。常温吸着工程（サイクル）のままで（送風を
行った状態のままで）加熱し、吸着と再生とを同時に行
うことも可能であるが、加熱された空気が流出すること
になるので、室内循環型の装置としては好ましくない。It is desirable to stop the blowing during heating and regeneration. It is possible to heat while keeping the normal-temperature adsorption process (cycle) (while blowing air), and to perform adsorption and regeneration at the same time. However, since heated air will flow out, indoor circulation will be performed. It is not preferable as a mold type device.
【００２７】[0027]
【発明の実施の形態】以下に本発明の実施の形態を説明
する。 （実施例１）図１に示す脱臭装置を図２に示す評価装置
に組み込んで脱臭実験を行った。脱臭装置１は２枚の板
状脱臭体２，２間にスペーサ３，３を介在させ、これら
スペーサ３，３間をガス通路４とし、また、板状脱臭体
２，２の外側に支持板５，５を設け、その外側に温度コ
ントロール可能なヒータＨを配置している。ここで、板
状脱臭体２は比表面積が200m2/g以上でほぼ非晶質のＭn
Ｏ2（二酸化マンガン）粉末を成形したものを用いた。Embodiments of the present invention will be described below. (Example 1) A deodorizing experiment was conducted by incorporating the deodorizing device shown in FIG. 1 into the evaluation device shown in FIG. The deodorizing apparatus 1 has spacers 3, 3 interposed between two plate-like deodorizing bodies 2, 2 to form a gas passage 4 between the spacers 3, 3, and a support plate outside the plate-like deodorizing bodies 2, 2. 5 and 5 are provided, and a heater H capable of controlling the temperature is arranged outside thereof. Here, the plate-like deodorant 2 has a specific surface area of 200 m 2 / g or more and is substantially amorphous Mn.
A molded product of O 2 (manganese dioxide) powder was used.
【００２８】また、評価装置は乾燥空気ボンべ６からの
乾燥空気に所定の湿度を付与し、この空気と元臭ボンべ
７からの悪臭とを混合して脱臭装置１に送り込むように
している。Further, the evaluation device imparts a predetermined humidity to the dry air from the dry air cylinder 6, mixes the air with the bad odor from the original odor cylinder 7 and sends it to the deodorizing device 1. .
【００２９】以上の評価装置を用いて脱臭装置１の脱臭
能力を評価した。実験の条件は以下の通りである。 元臭 ：アンモニア 測定ガスの濃度：１０ppm 測定ガスの湿度：６０％ＲＨ（入口で湿度制御） 測定ガスの流量：９１０cc/min（空間速度100,000h-1） 通気時間 ：１２０分 評価項目 ：触媒通過後の出口ガス成分の定量分析 検知管…（株）ガステック Ｎｏ．３Ｌ他 ＮＯXメータ…島津製作所 ＮＯＡ-7000 反応試験後の触媒残留物の定量分析 （サンプルより成分を純水に抽出の上） イオンクロマトグラフ…横河アナリティカルシステムス゛（株）IC700
0PThe deodorizing ability of the deodorizing apparatus 1 was evaluated by using the above evaluation apparatus. The conditions of the experiment are as follows. Original odor: Ammonia Measurement gas concentration: 10 ppm Measurement gas humidity: 60% RH (humidity control at inlet) Measurement gas flow rate: 910 cc / min (Space velocity 100,000 h -1 ) Aeration time: 120 minutes Evaluation item: Catalyst passage Quantitative analysis of outlet gas components after detection Detector tube: Gastech Co., Ltd. 3L, etc. NO X meter: Quantitative analysis of catalyst residue after NOA-7000 reaction test (extracting components from sample into pure water) Ion chromatograph: Yokogawa Analytical Systems Co., Ltd. IC700
0P
【００３０】図３は反応温度とアンモニアの除去率を示
す図、図４は反応温度とＮＯXへの転化率を示す図であ
り、この図から、反応温度が高くなればアンモニアの除
去率は高くなるが、有害なＮＯXへの転化率も高くな
り、２００〜２２０℃の範囲であれば、ＮＯXへの転化
率もそれほど高くなく且つアンモニアの除去率を高く維
持できることが分る。[0030] Figure 3 shows the removal of the reaction temperature and the ammonia FIG, 4 is a diagram showing the conversion to the reaction temperature and the NO X, from the figure, the ammonia removal rate the higher the reaction temperature It becomes high, and high conversion to harmful NO X, 200 to 220 be in the range of ° C., conversion to NO X also seen that it is possible to maintain a high and the ammonia removal rate not very high.
【００３１】（実施例２）図５に示す脱臭装置を図６に
示す評価装置に組み込んで脱臭実験を行った。脱臭装置
１１は通電可能な波型に加工した基板１２の表面に脱臭
体１３をコーティングし、これを巻回してコルゲート構
造とし、基板１２の一端（コルゲート構造の中心部）と
他端（コルゲート構造の外周部）に交流電源Ｖにつなが
る配線を接続し、通電によって基板１２を加熱する構造
としている。ここで、脱臭体１３は非晶質のシリカアル
ミナとした。また、通電加熱による基板１２の温度は熱
電対１４で検出し、温度コントローラ１５を介して基板
への通電をオン・オフするようにしている。Example 2 A deodorizing experiment was conducted by incorporating the deodorizing device shown in FIG. 5 into the evaluation device shown in FIG. The deodorizing device 11 coats a deodorizing body 13 on the surface of a substrate 12 processed into a corrugated shape that can be energized, and winds this to form a corrugated structure. One end (the center of the corrugated structure) and the other end (corrugated structure) (Outer peripheral portion) is connected to a wiring connected to an AC power supply V, and the substrate 12 is heated by energization. Here, the deodorant 13 was amorphous silica alumina. Further, the temperature of the substrate 12 due to the energization heating is detected by a thermocouple 14, and energization to the substrate is turned on / off via a temperature controller 15.
【００３２】以上の評価装置を用いて脱臭装置１１の脱
臭能力を評価した。実験の条件は以下の通りである。 元臭 ：アンモニア 測定ガスの濃度：１０ppm 測定ガスの湿度：６０％ＲＨ（入口で湿度制御） 測定ガスの流量：空間速度40,000h-1 サイクル ：常温吸着60分−220℃加熱再生10分の
サイクルを３回繰返しThe deodorizing ability of the deodorizing device 11 was evaluated using the above evaluation device. The conditions of the experiment are as follows. Original odor: Ammonia Measurement gas concentration: 10 ppm Measurement gas humidity: 60% RH (humidity control at inlet) Measurement gas flow rate: Space velocity 40,000h -1 cycle: Room temperature adsorption 60 minutes-220 ° C heating and regeneration 10 minutes cycle Repeat 3 times
【００３３】また、同一の装置を用い、上記と同一の条
件で、脱臭体をシリカマグネシア（ＳiＯ2−ＭgＯ）及
び酸化スズ（ＳnＯ2）として脱臭能力を評価した。Using the same apparatus and under the same conditions as described above, the deodorizing ability was evaluated using silica magnesia (SiO 2 —MgO) and tin oxide (SnO 2 ).
【００３４】図７（ａ）は脱臭体を非晶質のシリカアル
ミナとした場合の常温でのＮＨ3除去率と時間との関係
を示すグラフ、同図（ｂ）は脱臭体を非晶質のシリカア
ルミナとした場合の加熱時のＮＨ3の放出濃度と時間と
の関係を示すグラフであり、図７（ａ）から、脱臭体と
して非晶質のシリカアルミナを用いた場合には、１時間
経過しても除去率は約９０％を維持し、吸着能に優れて
いることが分る。また同図（ｂ）から、吸着能の限界に
近づいた時点で非晶質のシリカアルミナを加熱すると、
約５分間という極めて短時間のうちに高濃度のＮＨ3を
放出し、再生が完了したことが分る。したがって、非晶
質のシリカアルミナは悪臭成分の吸着能と加熱による再
生能に極めて優れていると言える。FIG. 7A is a graph showing the relationship between the NH 3 removal rate at room temperature and time when the deodorant is amorphous silica alumina, and FIG. FIG. 7A is a graph showing the relationship between NH 3 release concentration and time during heating when silica alumina is used, and FIG. 7A shows that when amorphous silica alumina is used as the deodorant, It can be seen that the removal rate is maintained at about 90% even after a lapse of time, and the adsorption capacity is excellent. Also, from FIG. 2B, when the amorphous silica alumina is heated at the time when the limit of the adsorption capacity is approached,
A very high concentration of NH 3 was released in a very short time of about 5 minutes, indicating that the regeneration was completed. Therefore, it can be said that amorphous silica alumina is extremely excellent in the ability to adsorb bad odor components and the ability to regenerate by heating.
【００３５】図８は脱臭体をシリカマグネシア（ＳiＯ2
−ＭgＯ）とした場合の常温でのＮＨ3除去率と時間との
関係を示すグラフであり、この図から明らかなように脱
臭体としてのシリカマグネシアは、その厚みに拘らず、
短時間で除去率が急激に低下し、脱臭体としては好まし
くないと言える。FIG. 8 shows that the deodorant is silica magnesia (SiO 2).
-MgO) is a graph showing the relationship between the NH 3 removal rate at room temperature and time at room temperature, and as is clear from this figure, silica magnesia as a deodorant, regardless of its thickness,
It can be said that the removal rate sharply decreases in a short time, which is not preferable as a deodorant.
【００３６】図９（ａ）は脱臭体を酸化スズとした場合
の常温でのＮＨ3除去率と時間との関係を示すグラフ、
同図（ｂ）は脱臭体を酸化スズとした場合の加熱時のＮ
Ｈ3の放出濃度と時間との関係を示すグラフであり、図
９（ａ）から、１時間経過してもＮＨ3除去率について
は、約８０％を維持するが、同図（ｂ）に示すように加
熱による再生に要する時間が長くかかってしまう。した
がって、酸化スズも脱臭体として最適なものと言えな
い。FIG. 9A is a graph showing the relationship between the NH 3 removal rate and the time at normal temperature when tin oxide is used as the deodorant.
FIG. 4B shows N during heating when the deodorant is tin oxide.
FIG. 9B is a graph showing the relationship between the H 3 release concentration and time. From FIG. 9A, the NH 3 removal rate is maintained at about 80% even after one hour, but FIG. As shown, the time required for regeneration by heating is long. Therefore, tin oxide is not optimal as a deodorant.
【００３７】即ち、酸強度が高すぎる材料では、一旦吸
着した物質を離脱しにくく、加熱再生の際に高温且つ長
時間を要してしまうので好ましくなく、また酸強度が低
すぎる材料では、水蒸気共存下における塩基性分子であ
る窒素系臭気成分の選択的吸着能を十分に発現すること
ができないので好ましくない。That is, a material having an excessively high acid strength is not preferable because a substance once adsorbed is difficult to be removed, and a high temperature and a long time are required for heat regeneration. It is not preferable because the ability to selectively adsorb the nitrogen-based odor component, which is a basic molecule, in the coexistence cannot be sufficiently exhibited.
【００３８】（実施例３）実施例２と同一の評価装置を
用い、脱臭体を非晶質のシリカアルミナとほぼ非晶質の
ＭnＯ2との混合物とした脱臭装置の脱臭能力を評価し
た。実験の条件は以下の通りである。 シリカアルミナ／ＭnＯ2：100/0〜0/100の範囲で調整 元臭 ：アンモニア 測定ガスの濃度：１０ppm 測定ガスの湿度：６０％ＲＨ（入口で湿度制御） 測定ガスの流量：空間速度40,000h-1 サイクル ：常温吸着60分−220℃加熱再生10分の
サイクルを３回繰返しExample 3 Using the same evaluation apparatus as in Example 2, the deodorizing ability of a deodorizing apparatus in which the deodorizing body was a mixture of amorphous silica alumina and substantially amorphous MnO 2 was evaluated. The conditions of the experiment are as follows. Silica alumina / MnO 2 : Adjusted in the range of 100/0 to 0/100 Original odor: Ammonia Measurement gas concentration: 10 ppm Measurement gas humidity: 60% RH (humidity control at inlet) Measurement gas flow rate: space velocity 40,000h -1 cycle: normal temperature adsorption 60 minutes-220 ° C heat regeneration 10 minutes cycle repeated 3 times
【００３９】以上の条件で実験を行った結果を、図１０
〜図１２に示す。尚、図１０は初期吸着脱臭性能（１回
目の常温吸着60分経過後の除去率）、図１１は加熱脱着
時の未分解アンモニア放出濃度（加熱開始０分〜５分の
平均及び１０分後の放出濃度）、図１２は再生率（３回
目除去率と１回目除去率の比）を示す。これらの図か
ら、初期吸着脱臭性能については、シリカアルミナ／Ｍ
nＯ2の混合比（重量混合比）が90/10〜50/50の範囲では
ほぼ１００％であり、加熱脱着時の未分解アンモニア放
出濃度については、シリカアルミナの配合比が高くなる
ほど多くなる傾向が見られ、加熱反応による再生率は、
シリカアルミナの配合比が高くなるほど向上する傾向が
見られた。また、加熱再生時の窒素酸化物放出濃度はい
ずれの条件においても１ppmであった。したがって、シ
リカアルミナ／ＭnＯ2の最適な混合比は、90/10〜50/50
といえる。FIG. 10 shows the results of an experiment conducted under the above conditions.
12 to FIG. FIG. 10 shows the initial adsorption and deodorization performance (removal rate after 60 minutes of the first normal temperature adsorption), and FIG. FIG. 12 shows the regeneration rate (ratio between the third removal rate and the first removal rate). From these figures, regarding the initial adsorption and deodorization performance, silica alumina / M
When the mixing ratio (weight mixing ratio) of nO 2 is in the range of 90/10 to 50/50, it is almost 100%, and the concentration of undecomposed ammonia released during thermal desorption tends to increase as the mixing ratio of silica alumina increases. The regeneration rate due to the heating reaction is
The tendency was found to increase as the mixing ratio of silica alumina increased. The nitrogen oxide emission concentration during heat regeneration was 1 ppm under any conditions. Therefore, the optimum mixing ratio of silica alumina / MnO 2 is 90/10 to 50/50.
It can be said that.
【００４０】（実施例４）実施例２と同じ評価装置を用
い、脱臭装置１１の高負荷条件での吸着能力を評価し
た。結果を図１３に、条件を以下に示す。尚、空間速度
40,000h-1×２５ｐｐｍは空間速度１００，０００ｈ
−１×１０ppmに相当する。 シリカアルミナ／ＭnＯ2：90/10,75/25,50/50の各割合 元臭 ：アンモニア 測定ガスの濃度：２５ppm 測定ガスの湿度：６０％ＲＨ（入口で湿度制御） 測定ガスの流量：空間速度40,000h-1 Example 4 Using the same evaluation apparatus as in Example 2, the adsorption capacity of the deodorizing apparatus 11 under high load conditions was evaluated. The results are shown in FIG. 13 and the conditions are shown below. In addition, space velocity
40,000h -1 × 25ppm is the space velocity 100,000h
-1 x 10 ppm. Silica alumina / MnO 2 : 90/10, 75/25, 50/50 ratio Original odor: Ammonia Measurement gas concentration: 25 ppm Measurement gas humidity: 60% RH (humidity control at inlet) Measurement gas flow rate: space Speed 40,000h -1
【００４１】図１３から、常温吸着時間が６０分を超え
ると除去率が急激に低下し、１２０分でいずれも除去率
５０％以下となり、特に非晶質のシリカアルミナ配合比
が少ない程、経時劣化が顕著になることが分る。したが
って、高負荷条件の場合には、シリカアルミナ／ＭnＯ2
の配合比を90/10〜75/25とし、常温吸着／加熱再生のサ
イクルは常温吸着の時間を６０〜１２０分とすることが
適当である。FIG. 13 shows that when the room temperature adsorption time exceeds 60 minutes, the removal rate sharply decreases, and after 120 minutes, the removal rate becomes 50% or less in any case. It can be seen that the deterioration is remarkable. Therefore, under high load conditions, silica alumina / MnO 2
It is appropriate that the compounding ratio is 90/10 to 75/25 and the normal temperature adsorption / heating regeneration cycle is normal temperature adsorption time of 60 to 120 minutes.
【００４２】実施例にあっては、脱臭体の形状として、
板状及びコルゲート型を示したがこれらに限らず、例え
ば、平板積層型、ハニカム型等任意である。In the embodiment, the shape of the deodorizing body is as follows.
Although a plate shape and a corrugated type have been described, the present invention is not limited to these, and for example, a flat plate type, a honeycomb type, or the like may be used.
【００４３】[0043]
【発明の効果】以上に説明した如く本願の第１発明によ
れば、１つの脱臭体が吸着剤と触媒を兼ねるため脱臭装
置自体の構成が簡単になり且つマンガン酸化物にて脱臭
体を構成したので、アンモニア等の窒素系悪臭成分以外
のアルデヒド類や硫化水素等も分解できる。As described above, according to the first aspect of the present invention, the structure of the deodorizing apparatus itself is simplified because one deodorizing body functions as an adsorbent and a catalyst, and the deodorizing body is composed of manganese oxide. Therefore, aldehydes other than nitrogen-based malodorous components such as ammonia, hydrogen sulfide, and the like can also be decomposed.
【００４４】また本願の第２発明及び第３発明によれ
ば、湿潤空気中に含まれる各種悪臭成分を選択的に吸着
することができ、加熱再生時に有害物質を副生成物とし
て生成することなく、悪臭成分を分解除去することがで
きる。According to the second and third aspects of the present invention, various malodorous components contained in moist air can be selectively adsorbed, and harmful substances are not generated as by-products during heating and regeneration. It can decompose and remove malodorous components.
【００４５】更に、本願の第１、第２発明及び第３発明
に係る脱臭装置を用いた脱臭方法によれば、間欠的に加
熱再生を繰り返すことで、長期間メンテナンスフリーで
脱臭効果を維持できる。Further, according to the deodorizing method using the deodorizing apparatus according to the first, second and third aspects of the present invention, the deodorizing effect can be maintained without maintenance for a long time by intermittently repeating heating and regeneration. .
【図１】実施例１に係る脱臭装置の斜視図FIG. 1 is a perspective view of a deodorizing apparatus according to a first embodiment.
【図２】実施例１に係る脱臭装置を組み込んだ評価装置
の概略図FIG. 2 is a schematic diagram of an evaluation device incorporating the deodorizing device according to the first embodiment.
【図３】実施例１に係る脱臭装置による反応温度とＮＨ
3除去率との関係を示すグラフFIG. 3 shows the reaction temperature and NH by the deodorizer according to Example 1.
3 Graph showing the relationship with the removal rate
【図４】実施例１に係る脱臭装置による反応温度とＮＨ
3転化率との関係を示すグラフFIG. 4 shows the reaction temperature and NH by the deodorizer according to Example 1.
3 Graph showing the relationship with conversion
【図５】実施例２に係る脱臭装置の斜視図FIG. 5 is a perspective view of a deodorizing apparatus according to a second embodiment.
【図６】実施例２に係る脱臭装置を組み込んだ評価装置
の概略図FIG. 6 is a schematic diagram of an evaluation device incorporating the deodorizing device according to the second embodiment.
【図７】（ａ）は脱臭体を非晶質のシリカアルミナとし
た場合の常温でのＮＨ3除去率と時間との関係を示すグ
ラフ、（ｂ）は脱臭体を非晶質のシリカアルミナとした
場合の加熱時のＮＨ3の放出濃度と時間との関係を示す
グラフFIG. 7 (a) is a graph showing the relationship between the removal rate of NH 3 at room temperature and time when the deodorant is amorphous silica alumina, and FIG. 7 (b) is a graph showing amorphous silica alumina as the deodorant. Graph showing the relationship between NH 3 release concentration and time during heating when
【図８】脱臭体をシリカマグネシア（ＳiＯ2−ＭgＯ）
とした場合の常温でのＮＨ3除去率と時間との関係を示
すグラフFIG. 8 shows that the deodorant is silica magnesia (SiO 2 —MgO).
Graph showing the relationship between the NH 3 removal rate at normal temperature and time when
【図９】（ａ）は脱臭体を酸化スズとした場合の常温で
のＮＨ3除去率と時間との関係を示すグラフ、（ｂ）は
脱臭体を酸化スズとした場合の加熱時のＮＨ3の放出濃
度と時間との関係を示すグラフ9A is a graph showing the relationship between the removal rate of NH 3 at room temperature and time when the deodorant is tin oxide, and FIG. 9B is a graph showing NH during heating when the deodorant is tin oxide. Graph showing the relationship between the release concentration of 3 and time
【図１０】実施例３に係る脱臭装置の初期吸着脱臭性能
（１回目の常温吸着60分経過後の除去率）を示すグラフFIG. 10 is a graph showing the initial adsorption and deodorization performance (removal rate after the first normal temperature adsorption of 60 minutes) of the deodorization apparatus according to Example 3.
【図１１】実施例３に係る脱臭装置の加熱脱着時の未分
解アンモニア放出濃度（加熱開始０分〜５分の平均及び
１０分後の放出濃度）を示すグラフFIG. 11 is a graph showing the concentration of undecomposed ammonia released during heating and desorption of the deodorizing apparatus according to Example 3 (average from 0 to 5 minutes after the start of heating and the concentration after 10 minutes).
【図１２】実施例３に係る脱臭装置の再生率（３回目除
去率と１回目除去率の比）を示すグラフFIG. 12 is a graph showing a regeneration rate (ratio between a third removal rate and a first removal rate) of the deodorizing apparatus according to the third embodiment.
【図１３】実施例４に係る脱臭装置における常温での経
過時間とＮＨ3除去率との関係を示すグラフFIG. 13 is a graph showing the relationship between the elapsed time at room temperature and the NH 3 removal rate in the deodorizing apparatus according to the fourth embodiment.
１，１１…脱臭装置、２…板状脱臭体、３…スペーサ、
４…ガス通路、５…支持板、６…乾燥空気ボンべ、７…
元臭ボンべ、１２…基板、１３…脱臭体、１４…熱電
対、１５…温度コントローラ、Ｈ…ヒータ。1, 11: deodorizing device, 2: plate-shaped deodorizing body, 3: spacer,
4 ... gas passage, 5 ... support plate, 6 ... dry air cylinder, 7 ...
Original odor cylinder, 12 substrate, 13 deodorant, 14 thermocouple, 15 temperature controller, H heater.
Claims (9)
マンガン酸化物からなる脱臭体と、この脱臭体を加熱す
る加熱手段とを備えたことを特徴とする脱臭装置。1. A deodorizing apparatus comprising: a deodorizing body made of a substantially amorphous manganese oxide having a specific surface area of 200 m 2 / g or more; and heating means for heating the deodorizing body.
剤からなる脱臭体と、この脱臭体を加熱する加熱手段と
を備えたことを特徴とする脱臭装置。2. A deodorizing apparatus comprising: a deodorizing body made of an adsorbent for selectively adsorbing a nitrogen-based odor component; and a heating means for heating the deodorizing body.
剤及び触媒を含んだ脱臭体と、この脱臭体を加熱する加
熱手段とを備えたことを特徴とする脱臭装置。3. A deodorizing apparatus comprising: a deodorizing body containing an adsorbent and a catalyst for selectively adsorbing a nitrogen-based odor component; and heating means for heating the deodorizing body.
置において、前記吸着剤は表面に酸点が存在する無機系
酸化物であることを特徴とする脱臭装置。4. The deodorizing apparatus according to claim 2, wherein the adsorbent is an inorganic oxide having an acid point on the surface.
記吸着剤は非晶質のシリカアルミナであることを特徴と
する脱臭装置。5. The deodorizing apparatus according to claim 4, wherein said adsorbent is amorphous silica alumina.
マンガン酸化物を含んだ脱臭体と、この脱臭体を加熱す
る加熱手段とを備えた脱臭装置において、前記非晶質の
シリカアルミナとほぼ非晶質のマンガン酸化物との重量
比は９０／１０〜５０／５０であることを特徴とする脱
臭装置。6. A deodorizing apparatus comprising: a deodorizing body containing amorphous silica alumina and a substantially amorphous manganese oxide; and a heating means for heating the deodorizing body. A weight ratio of the manganese oxide and the substantially amorphous manganese oxide is 90/10 to 50/50.
マンガン酸化物からなる脱臭体と、この脱臭体を加熱す
る加熱手段とを備えた脱臭装置による脱臭方法であっ
て、この脱臭方法は通常時は脱臭体の吸着作用によって
悪臭成分を吸着し、吸着能の限界に近づいた時点で脱臭
体を加熱し、脱臭体に吸着されている悪臭成分を脱臭体
の触媒作用によって分解し、脱臭体を再生するサイクル
を繰り返すことを特徴とする脱臭方法。7. A deodorizing method using a deodorizing device comprising a deodorizing body made of a substantially amorphous manganese oxide having a specific surface area of 200 m 2 / g or more and heating means for heating the deodorizing body. Normally, the deodorizing method adsorbs malodorous components by the adsorbing action of the deodorant, and heats the deodorant when it approaches the limit of adsorption capacity, and decomposes the malodorous component adsorbed by the deodorant by the catalytic action of the deodorant. And a cycle of regenerating the deodorizing body is repeated.
剤と触媒とを含んだ脱臭体と、この脱臭体を加熱する加
熱手段とを備えた脱臭装置による脱臭方法であって、こ
の脱臭方法は通常時は脱臭体の吸着作用によって悪臭成
分を選択的に吸着し、吸着能の限界に近づいた時点で脱
臭体を加熱し、脱臭体に吸着されている悪臭成分を離脱
させ、脱臭体の触媒作用によって分解し、脱臭体を再生
するサイクルを繰り返すことを特徴とする脱臭方法。8. A deodorizing method using a deodorizing apparatus including a deodorizing body including an adsorbent for selectively adsorbing a nitrogen-based odor component and a catalyst, and heating means for heating the deodorizing body. The method is to normally adsorb the malodorous components selectively by the adsorption action of the deodorant, and heat the deodorant when it approaches the limit of the adsorption capacity, release the malodorous component adsorbed on the deodorant, and remove the deodorant. A deodorizing method comprising repeating a cycle of decomposing by the catalytic action of the above and regenerating the deodorized body.
法において、脱臭対象が相対湿度６０％以上の湿潤空気
であることを特徴とする脱臭方法。9. The deodorizing method according to claim 7, wherein the object to be deodorized is humid air having a relative humidity of 60% or more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8236853A JPH1080621A (en) | 1996-09-06 | 1996-09-06 | Deodorizing device and deodorizing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8236853A JPH1080621A (en) | 1996-09-06 | 1996-09-06 | Deodorizing device and deodorizing method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH1080621A true JPH1080621A (en) | 1998-03-31 |
Family
ID=17006779
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8236853A Pending JPH1080621A (en) | 1996-09-06 | 1996-09-06 | Deodorizing device and deodorizing method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH1080621A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016117055A (en) * | 2014-12-19 | 2016-06-30 | ピュアスフィア カンパニー リミテッド | Oxidation method of harmful compound by manganese-based mixture |
| JP2021126599A (en) * | 2020-02-12 | 2021-09-02 | 時空化学株式会社 | Voc removal catalyst and method for producing the same |
-
1996
- 1996-09-06 JP JP8236853A patent/JPH1080621A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016117055A (en) * | 2014-12-19 | 2016-06-30 | ピュアスフィア カンパニー リミテッド | Oxidation method of harmful compound by manganese-based mixture |
| JP2021126599A (en) * | 2020-02-12 | 2021-09-02 | 時空化学株式会社 | Voc removal catalyst and method for producing the same |
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