JPH024450A - Catalyst regeneration process - Google Patents
Catalyst regeneration processInfo
- Publication number
- JPH024450A JPH024450A JP63151104A JP15110488A JPH024450A JP H024450 A JPH024450 A JP H024450A JP 63151104 A JP63151104 A JP 63151104A JP 15110488 A JP15110488 A JP 15110488A JP H024450 A JPH024450 A JP H024450A
- Authority
- JP
- Japan
- Prior art keywords
- catalyst
- calcining
- activity
- ozone
- 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.)
- Granted
Links
- 239000003054 catalyst Substances 0.000 title claims abstract description 30
- 238000000034 method Methods 0.000 title claims abstract description 20
- 238000011069 regeneration method Methods 0.000 title claims description 6
- 230000008929 regeneration Effects 0.000 title description 3
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims abstract description 14
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229910052748 manganese Inorganic materials 0.000 claims abstract description 8
- 239000011572 manganese Substances 0.000 claims abstract description 8
- 238000001354 calcination Methods 0.000 claims abstract description 7
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000001301 oxygen Substances 0.000 claims abstract description 6
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 6
- 230000003197 catalytic effect Effects 0.000 claims description 6
- 239000004480 active ingredient Substances 0.000 claims description 4
- 238000004332 deodorization Methods 0.000 claims description 2
- 230000001877 deodorizing effect Effects 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 7
- 230000001172 regenerating effect Effects 0.000 abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 3
- 230000006866 deterioration Effects 0.000 abstract description 2
- 238000001035 drying Methods 0.000 abstract description 2
- 238000001179 sorption measurement Methods 0.000 abstract description 2
- 239000007788 liquid Substances 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-N ammonia Natural products N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 4
- 238000000354 decomposition reaction Methods 0.000 description 3
- 238000010304 firing Methods 0.000 description 3
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 description 3
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 2
- QMMFVYPAHWMCMS-UHFFFAOYSA-N Dimethyl sulfide Chemical compound CSC QMMFVYPAHWMCMS-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 239000011149 active material Substances 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- -1 moisture Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 230000007096 poisonous effect Effects 0.000 description 1
- 229910052703 rhodium Inorganic materials 0.000 description 1
- 239000010948 rhodium Substances 0.000 description 1
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
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、悪臭ガスをオゾンを用いて触媒の存在下に脱
臭する処理に使用された使用済触媒を再生する方法に関
する。DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a method for regenerating a spent catalyst used in the treatment of deodorizing malodorous gas using ozone in the presence of a catalyst.
〈従来技術とその問題点〉
オゾンを用いる脱臭方法はオゾンが有する強力な酸化能
力によるものであることは知られている。<Prior art and its problems> It is known that the deodorizing method using ozone is based on the strong oxidizing ability of ozone.
この脱臭方法は触媒を使用して接触的に行なうことによ
り、その効果が飛躍的に大きくなる。触媒の活性物質と
してマンガン、鉄、コバルト、ニッケル、亜鉛、銀、白
金、パラジウムおよびロジウム等が挙げられるが、性能
および耐久性の面でマンガンがもっとも良好である。When this deodorizing method is carried out catalytically using a catalyst, its effectiveness is dramatically increased. Active materials for the catalyst include manganese, iron, cobalt, nickel, zinc, silver, platinum, palladium, and rhodium, but manganese is the best in terms of performance and durability.
しかし、マンガン触媒においても、長期間の使用により
、触媒活性が低下してくる。従って、触媒活性が劣化し
た触媒を再生する方法が必要となってくる。かかる再生
方法として、アンモニア水溶）１１で洗浄後、水洗、乾
痛し、次いで２００〜３００℃の不活性ガス雰囲気中で
焼成する方法が知られている（特開昭５８−２１９９４
２号公報）。しかし、この方法は臭気の強いアンモニア
により作業環境が汚染されたり工程も多くて決して簡便
な方法とはいえない。However, even with manganese catalysts, the catalytic activity decreases after long-term use. Therefore, there is a need for a method for regenerating a catalyst whose catalytic activity has deteriorated. As such a regeneration method, a method is known in which the material is washed with aqueous ammonia 11, washed with water, dried, and then fired in an inert gas atmosphere at 200 to 300°C (Japanese Patent Laid-Open No. 58-21994
Publication No. 2). However, this method contaminates the working environment with ammonia, which has a strong odor, and requires many steps, so it cannot be called an easy method.
〈発明が解決しようとしている問題点〉本発明の目的は
、オゾンを用いる触媒脱臭法で使用きれた、マンガンを
主活性成分とする使用済触媒を簡便かつ十分に再生する
方法を提供することにある。<Problems to be Solved by the Invention> The purpose of the present invention is to provide a simple and sufficient method for regenerating a spent catalyst containing manganese as the main active ingredient, which has been used in a catalytic deodorization method using ozone. be.
く問題点を解決するための手段〉
本発明者等は、上記目的に沿って鋭意研究した結果、マ
ンガンを主活性成分とする触媒を用いる場合にはアンモ
ニア水などで洗浄しなくとも単に空気中もしくは酸素中
で焼成するだけで十分触媒活性が回復することを見いだ
し、更に検討した結果本発明を完成したものである。即
ち本発明は、オゾンを用いる触媒脱臭法で使用きれｔ：
、マンガンを主活性成分とする使用済触媒を、空気中も
しくは酸素中で１００〜５００℃で焼成する触媒再生方
法である。Means for Solving Problems〉 As a result of intensive research in line with the above objectives, the present inventors have found that when using a catalyst containing manganese as the main active ingredient, it can be easily absorbed into the air without washing with aqueous ammonia or the like. Alternatively, the inventors discovered that catalytic activity could be sufficiently recovered by simply calcining in oxygen, and as a result of further studies, the present invention was completed. That is, the present invention can be used in a catalytic deodorizing method using ozone:
, is a catalyst regeneration method in which a spent catalyst containing manganese as the main active ingredient is calcined at 100 to 500°C in air or oxygen.
本発明において、触媒の再生は空気中もしくは酸素中で
１００〜５００℃、好ましくは２００〜４５０℃で焼成
して行なう。オゾンを用いる脱臭方法における触媒活性
の低下原因として、触媒上に反応生成物が付着して被毒
物置になること、オゾンにより触媒表面が酸化されマン
ガン過酸化物が生成し蓄積することなどが考えられる。In the present invention, the catalyst is regenerated by firing in air or oxygen at 100 to 500°C, preferably 200 to 450°C. Possible causes of decrease in catalyst activity in deodorizing methods using ozone include reaction products adhering to the catalyst and becoming a poisonous container, and ozone oxidizing the catalyst surface and producing and accumulating manganese peroxide. It will be done.
また処理ガス中に含まれるダストや水分、ミストの触媒
表面への付着も原因の一つと考えられる。単純な水分吸
着など触媒の活性劣化度合が小ざい場合には １００〜
１５０℃程度での乾燥でも十分であるが、通常の場合は
２００〜５００℃で焼成するのがよい。５００℃を越え
る起度で焼成しても触媒再生効果は増加せず、装置が大
がかりになったりエネルギーが余計に必要になったりし
て不利である。通常、焼成時間１〜５時間程度で焼成炉
を用いて行なう。It is also thought that one of the causes is the adhesion of dust, moisture, and mist contained in the processing gas to the catalyst surface. If the degree of catalyst activity deterioration is small, such as due to simple water adsorption, 100~
Although drying at a temperature of about 150°C is sufficient, it is usually preferable to bake at a temperature of 200 to 500°C. Calcining at a temperature exceeding 500° C. does not increase the catalyst regeneration effect, and is disadvantageous in that the equipment becomes large-scale and additional energy is required. Usually, the firing is carried out using a firing furnace for about 1 to 5 hours.
本発明の方法に従って再生することにより、薬ｊｆｌに
よる処理が不要で、工程および装置が簡略化でき、再生
処理が簡便に行なえる。By regenerating according to the method of the present invention, treatment with the drug jfl is not necessary, the process and equipment can be simplified, and the regeneration process can be performed easily.
以下、実施例により本発明をざらに詳細に説明するが、
本発明は実施例のみに限定されるものではない。Hereinafter, the present invention will be roughly explained in detail with reference to Examples.
The present invention is not limited only to the examples.
〈実施例〉
オゾン分解用触媒として、チクンー珪素からなる複合酸
化物と二酸化マンガンがらなり、組成が各々の重量比で
８５：１５である触媒を用いた。<Example> As an ozone decomposition catalyst, a catalyst consisting of a composite oxide of chikun-silicon and manganese dioxide and having a composition of 85:15 in weight ratio of each was used.
該触媒に硫化メチルｌ０ＰＰＩ１１およびオゾンを２０
ｐｐｍ含有する空気を室温下、空間速度５０，０００
ｈｒ’″１にて通じ、空気の脱臭処理を行なった。処理
を開始してから４，０００時間時間比メチル除去率およ
びオゾン分解効率を測定したところ、それぞれ６３％、
７１％であった。触媒を取り出し、電気加熱式焼成炉に
入れて加熱、４００℃、３時間焼成し、触媒の再生を行
なった。The catalyst was charged with 20% of methyl sulfide, 11% of PPI, and 20% of ozone.
Air containing ppm at room temperature, space velocity 50,000
The air was deodorized at 1 hr.
It was 71%. The catalyst was taken out, placed in an electrically heated calcining furnace, heated, and calcined at 400°C for 3 hours to regenerate the catalyst.
再生後の触媒を前回と同じ条件下でオゾン分解処理に用
いた。処理開始直後の硫化メチル除去率およびオゾン分
解効率はそれぞれ９６％、９９％であり、触媒活性が十
分に回復していた。The regenerated catalyst was used for ozone decomposition treatment under the same conditions as before. Immediately after the start of treatment, the methyl sulfide removal rate and ozone decomposition efficiency were 96% and 99%, respectively, indicating that the catalyst activity had been sufficiently recovered.
Claims (1)
を主活性成分とする使用済触媒を、空気中もしくは酸素
中で１００〜５００℃で焼成することを特徴とする触媒
再生方法。1. A catalyst regeneration method characterized by calcining a spent catalyst containing manganese as a main active ingredient, which was used in a catalytic deodorization method using ozone, at 100 to 500°C in air or oxygen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63151104A JPH024450A (en) | 1988-06-21 | 1988-06-21 | Catalyst regeneration process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63151104A JPH024450A (en) | 1988-06-21 | 1988-06-21 | Catalyst regeneration process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH024450A true JPH024450A (en) | 1990-01-09 |
| JPH0555186B2 JPH0555186B2 (en) | 1993-08-16 |
Family
ID=15511434
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63151104A Granted JPH024450A (en) | 1988-06-21 | 1988-06-21 | Catalyst regeneration process |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH024450A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8176741B2 (en) | 2007-01-11 | 2012-05-15 | Denso Corporation | Local air conditioning system for vehicle and method of controlling local air conditioning unit |
| CN114453031A (en) * | 2022-02-17 | 2022-05-10 | 中国环境科学研究院 | Catalyst regeneration method and application |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5314688A (en) * | 1976-07-28 | 1978-02-09 | Toshiba Corp | Production of ozone decomposition catalyst |
| JPS5330978A (en) * | 1976-09-03 | 1978-03-23 | Toshiba Corp | Deodorizing apparatus |
| JPS542992A (en) * | 1977-06-09 | 1979-01-10 | Kobe Steel Ltd | Catalyst regenerating method by heating |
| JPS5581730A (en) * | 1978-12-15 | 1980-06-20 | Toshiba Corp | Continuous deodorizing method |
| JPS58219942A (en) * | 1982-06-14 | 1983-12-21 | Mitsubishi Heavy Ind Ltd | Regeneration of catalyst |
| JPS6120334A (en) * | 1984-07-09 | 1986-01-29 | Oki Electric Ind Co Ltd | Manufacture of semiconductor device |
| JPS6279848A (en) * | 1985-10-01 | 1987-04-13 | Osaka Sekiyu Kagaku Kk | Method for reactivation of oxide catalyst for removing arsenic in hydrocarbon |
| JPS6297643A (en) * | 1985-10-25 | 1987-05-07 | Nippon Shokubai Kagaku Kogyo Co Ltd | Ozone decomposing catalyst |
| JPS63126525A (en) * | 1986-11-18 | 1988-05-30 | Nippon Shokubai Kagaku Kogyo Co Ltd | Deodorizing device |
-
1988
- 1988-06-21 JP JP63151104A patent/JPH024450A/en active Granted
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5314688A (en) * | 1976-07-28 | 1978-02-09 | Toshiba Corp | Production of ozone decomposition catalyst |
| JPS5330978A (en) * | 1976-09-03 | 1978-03-23 | Toshiba Corp | Deodorizing apparatus |
| JPS542992A (en) * | 1977-06-09 | 1979-01-10 | Kobe Steel Ltd | Catalyst regenerating method by heating |
| JPS5581730A (en) * | 1978-12-15 | 1980-06-20 | Toshiba Corp | Continuous deodorizing method |
| JPS58219942A (en) * | 1982-06-14 | 1983-12-21 | Mitsubishi Heavy Ind Ltd | Regeneration of catalyst |
| JPS6120334A (en) * | 1984-07-09 | 1986-01-29 | Oki Electric Ind Co Ltd | Manufacture of semiconductor device |
| JPS6279848A (en) * | 1985-10-01 | 1987-04-13 | Osaka Sekiyu Kagaku Kk | Method for reactivation of oxide catalyst for removing arsenic in hydrocarbon |
| JPS6297643A (en) * | 1985-10-25 | 1987-05-07 | Nippon Shokubai Kagaku Kogyo Co Ltd | Ozone decomposing catalyst |
| JPS63126525A (en) * | 1986-11-18 | 1988-05-30 | Nippon Shokubai Kagaku Kogyo Co Ltd | Deodorizing device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8176741B2 (en) | 2007-01-11 | 2012-05-15 | Denso Corporation | Local air conditioning system for vehicle and method of controlling local air conditioning unit |
| CN114453031A (en) * | 2022-02-17 | 2022-05-10 | 中国环境科学研究院 | Catalyst regeneration method and application |
| CN114453031B (en) * | 2022-02-17 | 2023-04-25 | 中国环境科学研究院 | Catalyst regeneration method and application |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0555186B2 (en) | 1993-08-16 |
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