JPH09155149A - Deodorant and deodorization method - Google Patents
Deodorant and deodorization methodInfo
- Publication number
- JPH09155149A JPH09155149A JP7354666A JP35466695A JPH09155149A JP H09155149 A JPH09155149 A JP H09155149A JP 7354666 A JP7354666 A JP 7354666A JP 35466695 A JP35466695 A JP 35466695A JP H09155149 A JPH09155149 A JP H09155149A
- Authority
- JP
- Japan
- Prior art keywords
- deodorant
- neutral
- impregnated
- alkaline
- odor
- 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
- 238000000034 method Methods 0.000 title claims abstract description 24
- 239000002781 deodorant agent Substances 0.000 title claims abstract description 14
- 238000004332 deodorization Methods 0.000 title abstract description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 43
- 239000007789 gas Substances 0.000 claims abstract description 28
- CPELXLSAUQHCOX-UHFFFAOYSA-N Hydrogen bromide Chemical compound Br CPELXLSAUQHCOX-UHFFFAOYSA-N 0.000 claims abstract description 24
- 239000000126 substance Substances 0.000 claims abstract description 20
- 230000007935 neutral effect Effects 0.000 claims abstract description 19
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000003463 adsorbent Substances 0.000 claims abstract description 12
- 229910000042 hydrogen bromide Inorganic materials 0.000 claims abstract description 12
- 229910021529 ammonia Inorganic materials 0.000 claims abstract description 9
- -1 alkyl sulfides Chemical class 0.000 claims abstract description 3
- 150000001412 amines Chemical class 0.000 claims abstract description 3
- 230000001877 deodorizing effect Effects 0.000 claims description 9
- 239000003795 chemical substances by application Substances 0.000 claims description 2
- 229910052799 carbon Inorganic materials 0.000 abstract description 15
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract 1
- 230000000704 physical effect Effects 0.000 abstract 1
- 238000001179 sorption measurement Methods 0.000 description 8
- QMMFVYPAHWMCMS-UHFFFAOYSA-N Dimethyl sulfide Chemical compound CSC QMMFVYPAHWMCMS-UHFFFAOYSA-N 0.000 description 6
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 6
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- 230000002378 acidificating effect Effects 0.000 description 6
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 4
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 4
- 229910052739 hydrogen Inorganic materials 0.000 description 3
- 239000001257 hydrogen Substances 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 235000013162 Cocos nucifera Nutrition 0.000 description 2
- 244000060011 Cocos nucifera Species 0.000 description 2
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000005273 aeration Methods 0.000 description 2
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 238000009841 combustion method Methods 0.000 description 2
- WQOXQRCZOLPYPM-UHFFFAOYSA-N dimethyl disulfide Chemical compound CSSC WQOXQRCZOLPYPM-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 150000002431 hydrogen Chemical class 0.000 description 2
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 2
- 239000007800 oxidant agent Substances 0.000 description 2
- GETQZCLCWQTVFV-UHFFFAOYSA-N trimethylamine Chemical compound CN(C)C GETQZCLCWQTVFV-UHFFFAOYSA-N 0.000 description 2
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 229910021536 Zeolite Inorganic materials 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 description 1
- 229910052794 bromium Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000007796 conventional method Methods 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
- 239000010800 human waste Substances 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000010457 zeolite Substances 0.000 description 1
Landscapes
- Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
- Treating Waste Gases (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、臭気物質を除去す
る脱臭剤及び脱臭方法に係り、特に、下水処理場、し尿
処理場、及び各種工業製造事業場などで発生する排ガス
中に含有する中性及びアルカリ性の臭気物質の脱臭技術
に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a deodorant and a deodorizing method for removing odorous substances, and in particular, it is contained in exhaust gas generated in a sewage treatment plant, a human waste treatment plant, and various industrial manufacturing establishments. The present invention relates to a technique for deodorizing odorous and alkaline odor substances.
【０００２】[0002]
【従来の技術】従来、排ガスに含まれる臭気成分の除去
技術としては、燃焼法、湿式ガス吸収法、生物脱臭法、
乾式吸着法などがある。このうち、燃焼法は高濃度臭気
に、湿式ガス吸収法は中濃度臭気に、生物脱臭法は高濃
度〜低濃度臭気に、乾式吸着法は低濃度臭気に対して適
用するのが、一般に有利であると言われている。なお、
乾式吸着法は全ての臭気成分を閾値以下まで除去するこ
とが可能であるため、ポリッシャーとして他の技術と組
み合わせて使用される場合も多い。2. Description of the Related Art Conventional techniques for removing odorous components contained in exhaust gas include combustion methods, wet gas absorption methods, biological deodorization methods,
There is a dry adsorption method. Among them, it is generally advantageous that the combustion method is applied to high concentration odor, the wet gas absorption method is applied to medium concentration odor, the biological deodorization method is applied to high concentration to low concentration odor, and the dry adsorption method is applied to low concentration odor. It is said that. In addition,
Since the dry adsorption method can remove all odorous components up to a threshold value or less, it is often used as a polisher in combination with other techniques.
【０００３】乾式吸着法では活性炭法が一般的である
が、普通の活性炭では吸着寿命が短いため薬品を担持さ
せたものが使用されており、これらの活性炭は添着炭と
呼称されている。硫化水素などの酸性臭気成分除去には
アルカリ添着炭、アンモニアなどのアルカリ性臭気成分
除去には酸添着炭、硫化メチルなどの中性臭気成分には
中性ガス用添着炭など、種々の薬品を添着して除去効果
を高めた活性炭が使用される。アルカリ添着炭としては
水酸化ナトリウムや水酸化カリウムを添着したもの、酸
添着炭としてはリン酸や硫酸を添着したもの、中性ガス
用添着炭としては臭素を添着したものなどが知られてい
る。In the dry adsorption method, the activated carbon method is generally used. However, since ordinary activated carbon has a short adsorption life, a material carrying a chemical is used, and these activated carbons are called impregnated carbon. Various chemicals such as alkali-impregnated carbon to remove acidic odorous components such as hydrogen sulfide, acid-impregnated carbon to remove alkaline odorous components such as ammonia, and carbon dioxide to neutral odorous components such as methyl sulfide. Activated carbon with enhanced removal effect is used. It is known that alkali-impregnated carbon is impregnated with sodium hydroxide or potassium hydroxide, acid-impregnated carbon is impregnated with phosphoric acid or sulfuric acid, and neutral gas impregnated carbon is bromine-impregnated. .
【０００４】このように、添着活性炭には、アルカリ性
ガス用、酸性ガス用及び中性ガス用の３種類があり、そ
れぞれ、対象成分を閾値以下まで除去することが可能で
ある。しかしながら、実際の排ガス中にはアルカリ性臭
気成分、酸性臭気成分及び中性臭気成分が混在している
場合が殆どであり、１種類単独の添着炭では対応できな
いことが多い。このため、全ての臭気成分を除去するた
めには、アルカリ性ガス用、酸性ガス用及び中性ガス用
の３種類の添着炭をそれぞれ充填した３つの吸着塔が必
要となったり、１つの吸着塔に３種類の添着炭を充填す
るなどの措置が必要であった。As described above, there are three types of impregnated activated carbon, one for alkaline gas, one for acidic gas, and one for neutral gas, and it is possible to remove the target components up to the threshold value or less. However, in most cases, the actual exhaust gas contains an alkaline odor component, an acidic odor component, and a neutral odor component, and it is often not possible to use only one type of impregnated carbon. Therefore, in order to remove all the odorous components, it is necessary to have three adsorption towers respectively filled with three kinds of impregnated carbons for alkaline gas, acidic gas and neutral gas. It was necessary to take measures such as filling 3 kinds of impregnated coal.
【０００５】[0005]
【発明が解決しようとする課題】本発明は、上記従来技
術の問題点を解決しようとするもので、中性臭気成分と
アルカリ性臭気成分とを単一の脱臭剤で除去することが
できる脱臭剤と脱臭方法を提供することを課題とする。SUMMARY OF THE INVENTION The present invention is intended to solve the above-mentioned problems of the prior art, and is a deodorant capable of removing a neutral odor component and an alkaline odor component with a single deodorant. And to provide a deodorizing method.
【０００６】[0006]
【課題を解決するための手段】上記課題を解決するため
に、本発明では、臭化水素を添着させた吸着剤からなる
中性及びアルカリ性臭気物質の脱臭剤としたものであ
る。また、本発明では、中性及び／又はアルカリ性臭気
物質を含有する気体を、臭化水素を添着させた吸着剤と
接触させることを特徴とする臭気物質の脱臭方法とした
ものである。前記本発明において、吸着剤としては活性
炭がよく、また、除去できる臭気物質としては、硫化ア
ルキル、アンモニア又はアミン類等である。In order to solve the above problems, the present invention provides a deodorizing agent for neutral and alkaline odorous substances, which comprises an adsorbent impregnated with hydrogen bromide. Further, in the present invention, a method for deodorizing an odorous substance is characterized in that a gas containing a neutral and / or alkaline odorous substance is brought into contact with an adsorbent impregnated with hydrogen bromide. In the present invention, the adsorbent is preferably activated carbon, and the odorous substances that can be removed are alkyl sulfide, ammonia, amines and the like.
【０００７】[0007]
【発明の実施の形態】従来用いられているアンモニア、
トリメチルアミンのようなアルカリ性ガスに対する酸添
着炭、また、硫化水素のような酸性ガスに対するアルカ
リ添着炭の作用は、何れも酸−アルカリの中和反応によ
るものであり、添着薬品としても水酸化ナトリウム、水
酸化カリウムを始めとするアルカリ性薬剤、リン酸、硫
酸を始めとする酸性薬剤などである。これに対し、硫化
メチル、二硫化メチルといった中性ガスの除去作用は、
酸化作用によるものと考えられている。しかしながら、
酸化剤を活性を失わない状態で活性炭に担持させること
は容易ではなく、現在、実用に耐えるものは臭素（Ｂｒ
2 ）を添着させたものに限られている。本発明は、中性
ガスを除去しうる薬品探索を永年に亘って行った結果、
臭化水素は酸化剤ではないにも拘わらず、臭化水素を添
着させた活性炭がアルカリ性臭気成分だけでなく、中性
臭気成分の除去にも有効であることを見出してなされた
ものである。BEST MODE FOR CARRYING OUT THE INVENTION Conventionally used ammonia,
Acid-impregnated carbon with respect to an alkaline gas such as trimethylamine, and the action of the alkali-impregnated carbon with respect to an acid gas such as hydrogen sulfide is due to an acid-alkali neutralization reaction, and sodium hydroxide as an impregnating chemical, Examples include alkaline chemicals such as potassium hydroxide, and acidic chemicals such as phosphoric acid and sulfuric acid. On the other hand, the action of removing neutral gases such as methyl sulfide and methyl disulfide is
It is thought to be due to the oxidative effect. However,
It is not easy to support an oxidizer on activated carbon without losing its activity, and currently bromine (Br
It is limited to those with 2 ) attached. The present invention, as a result of conducting a search for chemicals capable of removing neutral gas for many years,
Although hydrogen bromide is not an oxidizing agent, it was discovered that activated carbon impregnated with hydrogen bromide is effective not only for removing alkaline odor components but also for neutral odor components.
【０００８】次に、本発明を詳細に説明する。本発明で
使用できる吸着剤の種類については活性炭、炭、ゼオラ
イトほか吸着性能を有するものであれば何でも良く、特
に限定するものではないが、比表面積が大きいものが有
利であることから、臭化水素を担持させる吸着剤として
は活性炭が最適である。活性炭の種類についても限定す
るものではないが、気相での反応が対象となることか
ら、椰子殻系が有利である。臭化水素の添着方法につい
ては、ガス状でも水溶液状でも使用できるが、臭化水素
水溶液として適用する方が安全性の面からも望ましい。
臭化水素添着量についても限定はしないが、乾燥活性炭
に対する重量比で５〜２０重量％添着させることが望ま
しい。但し、この添着量は経済性を考えて適宜決定する
ことができる。Next, the present invention will be described in detail. The type of the adsorbent that can be used in the present invention may be activated carbon, charcoal, zeolite, or any other adsorbent having any adsorbing ability, and is not particularly limited. Activated carbon is most suitable as an adsorbent for supporting hydrogen. The type of activated carbon is also not limited, but the palm shell system is advantageous because the reaction in the gas phase is targeted. The method of impregnating hydrogen bromide may be in the form of gas or aqueous solution, but it is preferable to apply it as an aqueous solution of hydrogen bromide from the viewpoint of safety.
The amount of hydrogen bromide impregnated is also not limited, but it is desirable to impregnate 5 to 20% by weight with respect to the weight of dry activated carbon. However, this impregnation amount can be appropriately determined in consideration of economy.
【０００９】臭化水素添着炭と臭気含有ガスとの接触方
法については、いずれの方法でも適用できる。また、本
発明の脱臭剤は、本発明の脱臭剤の単独使用、もしくは
本発明の脱臭剤と、酸性臭気物質を除去するために無添
着炭あるいはアルカリ添着炭との併用使用がよいが、他
の酸添着炭及び他の中性ガス用添着炭との併用使用につ
いても妨げるものではない。さらに、本発明の脱臭剤は
中性臭気成分とアルカリ性臭気成分の同時除去が可能で
あるが、中性臭気成分単独の除去もしくはアルカリ性臭
気成分単独の除去を目的とした使用についても妨げるも
のではない。Any method can be applied to the method of contacting the hydrogen bromide-impregnated carbon with the odor-containing gas. Further, the deodorant of the present invention, it is preferable to use the deodorant of the present invention alone, or to use the deodorant of the present invention together with non-impregnated carbon or alkali-impregnated carbon to remove an acidic odor substance. It does not hinder the combined use of the acid-impregnated carbon and the other carbon-impregnated carbon. Further, although the deodorant of the present invention is capable of simultaneously removing a neutral odor component and an alkaline odor component, it does not hinder the use for the purpose of removing the neutral odor component alone or the alkaline odor component alone. .
【００１０】[0010]
【実施例】以下、本発明を実施例により具体的に説明す
る。 実施例１ 臭化水素１０重量％を添着した４×８メッシュの椰子殻
活性炭を、塔径０．６ｍ×塔高３．４ｍ（充填層高１．
０ｍ、充填量０．２８ｍ3 ）の吸着塔に充填し、硫化メ
チル２０ｐｐｍ、アンモニア２０ｐｐｍを含有するガス
を、ＬＶ＝０．３ｍ／秒、ＳＶ＝３，０００／時間で通
気処理を行ったところ、２ヶ月経過後も以下の処理ガス
が得られた。 処理ガス濃度 硫化メチル：０．５ｐｐｍ未満、 アンモニア：０．
５ｐｐｍ未満、The present invention will be described below in more detail with reference to examples. Example 1 A 4 × 8 mesh coconut shell activated carbon impregnated with 10% by weight of hydrogen bromide was used to obtain a tower diameter of 0.6 m × a tower height of 3.4 m (a packed bed height of 1.
It was packed in an adsorption tower of 0 m and a packing amount of 0.28 m 3 ) and a gas containing 20 ppm of methyl sulfide and 20 ppm of ammonia was subjected to aeration treatment at LV = 0.3 m / sec and SV = 3,000 / hour. The following process gas was obtained even after 2 months. Treatment gas concentration Methyl sulfide: less than 0.5 ppm, ammonia: 0.
Less than 5 ppm,
【００１１】実施例２ 臭化水素１５重量％を添着した４×８メッシュの椰子殻
活性炭を、塔径０．６ｍ×塔高３．４ｍ（充填層高１．
０ｍ、充填量０．２８ｍ3 ）の吸着塔に充填し、硫化メ
チル５ｐｐｍ、アンモニア１０ｐｐｍを含有するガス
を、ＬＶ＝０．３ｍ／秒、ＳＶ＝３，０００／時間で通
気処理を行ったところ、６ヶ月経過後も以下の処理ガス
が得られた。 処理ガス濃度 硫化メチル：０．５ｐｐｍ未満、 アンモニア：０．
５ｐｐｍ未満、Example 2 A 4 × 8 mesh coconut shell activated carbon impregnated with 15% by weight of hydrogen bromide was used to obtain a tower diameter of 0.6 m × a tower height of 3.4 m (a packed bed height of 1.
0 m and a filling amount of 0.28 m 3 ) were charged into an adsorption tower, and a gas containing 5 ppm of methyl sulfide and 10 ppm of ammonia was subjected to aeration treatment at LV = 0.3 m / sec and SV = 3,000 / hour. After 6 months, the following process gas was obtained. Treatment gas concentration Methyl sulfide: less than 0.5 ppm, ammonia: 0.
Less than 5 ppm,
【００１２】[0012]
【発明の効果】上述の如く、本発明の脱臭剤である臭化
水素添着吸着剤は、中性臭気成分とアルカリ性臭気成分
の同時除去が可能であり、脱臭設備の簡素化及び省スペ
ース化の点で効果的である。As described above, the hydrogen bromide-impregnated adsorbent, which is the deodorant of the present invention, can simultaneously remove a neutral odor component and an alkaline odor component, simplifying deodorizing equipment and saving space. It is effective in terms.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 安武 重雄 東京都大田区羽田旭町11番１号 株式会社 荏原製作所内 (72)発明者 鍋倉 正治 東京都大田区羽田旭町11番１号 株式会社 荏原製作所内 (72)発明者 府中 裕一 東京都大田区羽田旭町11番１号 株式会社 荏原製作所内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Shigeo Anbu 11-1 Haneda Asahi-cho, Ota-ku, Tokyo Inside the EBARA CORPORATION (72) Inventor Shoji Nabekura 11-1 Haneda-Asahi-cho, Ota-ku, Tokyo (72) Inventor Yuichi Fuchu 11-11 Haneda Asahi-cho, Ota-ku, Tokyo Inside EBARA CORPORATION
Claims (4)
性及びアルカリ性臭気物質の脱臭剤。1. A deodorizing agent for neutral and alkaline odorous substances, comprising an adsorbent impregnated with hydrogen bromide.
載の脱臭剤。2. The deodorant according to claim 1, wherein the adsorbent is activated carbon.
有する気体を、臭化水素を添着させた吸着剤と接触させ
ることを特徴とする臭気物質の脱臭方法。3. A method for deodorizing an odorous substance, which comprises contacting a gas containing a neutral and / or alkaline odorous substance with an adsorbent impregnated with hydrogen bromide.
ニア又はアミン類から選ばれた一種以上であることを特
徴とする臭気物質の脱臭方法。4. A method for deodorizing an odorous substance, wherein the odorous substance is one or more selected from alkyl sulfide, ammonia or amines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP35466695A JP3278337B2 (en) | 1995-12-14 | 1995-12-14 | Deodorization method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP35466695A JP3278337B2 (en) | 1995-12-14 | 1995-12-14 | Deodorization method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH09155149A true JPH09155149A (en) | 1997-06-17 |
| JP3278337B2 JP3278337B2 (en) | 2002-04-30 |
Family
ID=18439096
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP35466695A Expired - Lifetime JP3278337B2 (en) | 1995-12-14 | 1995-12-14 | Deodorization method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3278337B2 (en) |
-
1995
- 1995-12-14 JP JP35466695A patent/JP3278337B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JP3278337B2 (en) | 2002-04-30 |
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