JPH119960A - Material for preventing emission of dioxin - Google Patents

Material for preventing emission of dioxin

Info

Publication number
JPH119960A
JPH119960A JP9167390A JP16739097A JPH119960A JP H119960 A JPH119960 A JP H119960A JP 9167390 A JP9167390 A JP 9167390A JP 16739097 A JP16739097 A JP 16739097A JP H119960 A JPH119960 A JP H119960A
Authority
JP
Japan
Prior art keywords
activated carbon
dioxin
exhaust gas
amine
amine compound
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
Application number
JP9167390A
Other languages
Japanese (ja)
Inventor
Hiroshi Miyata
博司 宮田
Naoaki Fujiyoshi
直明 藤吉
Hirofumi Izumikawa
裕文 泉川
Noboru Fujiwara
昇 藤原
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kurita Water Industries Ltd
Original Assignee
Kurita Water Industries Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Kurita Water Industries Ltd filed Critical Kurita Water Industries Ltd
Priority to JP9167390A priority Critical patent/JPH119960A/en
Publication of JPH119960A publication Critical patent/JPH119960A/en
Pending legal-status Critical Current

Links

Abstract

PROBLEM TO BE SOLVED: To contrive not to need a separate treatment of activated carbon discharged out of a dust collecting facility by impregnating an emissionpreventing material with activated carbon bearing an amine compound. SOLUTION: As an amine compound to be used for this material, one or two types of alkyl amines and alkanol amines may be employed and especially alkanol amines are preferable since the amines have high dioxin decomposing reactivity. The preferable amount of those amine compounds to be deposited is 0.1-10 wt.% to the amount of activated carbon, especially preferably 1-7 wt.%. The treatment apparatus mainly comprises a combustion furnace main body 1, an electric dust collector 2, and a scrubber 3 and substances 4 thrown to the combustion furnace main body 1 are fired and a combustion gas 5 is sent to a dust collecting process through a chimney 7. Bottom ash 6 is discharged out of the combustion furnace main body 1. The combustion gas is discharged outside air out of the chimney 9 after being passed further through the scrubber 3. The material for preventing emission is added one or a plurality of points somewhere between the point B and the point E illustrated.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】本発明は、焼却炉の排ガスな
どに伴って大気中に放出されるダイオキシン類の量を低
減するためのダイオキシン類の放出防止材に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dioxin emission preventive material for reducing the amount of dioxins released into the atmosphere due to exhaust gas from an incinerator.

【0002】[0002]

【従来の技術】ごみ焼却炉等の焼却炉においては、燃焼
中に、フェノール、ベンゼン、アセチレン等の有機化合
物、クロロフェノール、クロロベンゼン等の塩素化芳香
族化合物や塩素化アルキル化合物等のダイオキシン前駆
体が発生する。これらのダイオキシン前駆体は、飛灰が
共存するとその触媒作用で例えば次式に示すような反応
によりダイオキシンとなり、排ガス中に存在するように
なる(本発明ではダイオキシンとダイオキシン前駆体と
をあわせて「ダイオキシン類」と称する場合がある)。
BACKGROUND OF THE INVENTION In incinerators such as refuse incinerators, during combustion, organic compounds such as phenol, benzene and acetylene, chlorinated aromatic compounds such as chlorophenol and chlorobenzene, and dioxin precursors such as chlorinated alkyl compounds. Occurs. When the fly ash coexists, these dioxin precursors become dioxins by the reaction shown in the following formula by the catalytic action, and are present in the exhaust gas. (In the present invention, the dioxin and the dioxin precursor are combined together. Dioxins ").

【0003】[0003]

【化1】 Embedded image

【0004】なお、このダイオキシン生成反応は、40
0℃以上の高温下では起こり難く、200〜400℃付
近に温度が低下したところで起こる。
[0004] The dioxin formation reaction is carried out at 40
It hardly occurs at a high temperature of 0 ° C. or higher, and occurs when the temperature is reduced to around 200 to 400 ° C.

【0005】即ち、Karasek (Science 237:754,1987)、
Stieglitz (Chemosphere 18: 1219,1989)、 Hutzinger
(Chemosphere 14:581、 1985)らの研究によれば、焼却炉
におけるダイオキシンの生成は、主に排ガス中に含まれ
るダイオキシン前駆体が飛灰の触媒作用によってダイオ
キシンに変換されることによるものであり、この反応の
最適温度は300℃付近である。そして、クロロフェノ
ールやクロロベンゼン等のダイオキシン前駆体が、飛灰
粒子のダイオキシン生成触媒活性部位に吸着され、か
つ、200〜400℃の温度条件下に晒されると、飛灰
の触媒作用でダイオキシン前駆体が反応してダイオキシ
ンが生成する。
That is, Karasek (Science 237: 754, 1987),
Stieglitz (Chemosphere 18: 1219,1989), Hutzinger
(Chemosphere 14: 581, 1985) indicate that the production of dioxins in incinerators is mainly due to the conversion of dioxin precursors contained in exhaust gas to dioxins by the catalytic action of fly ash. The optimum temperature for this reaction is around 300 ° C. When the dioxin precursor such as chlorophenol or chlorobenzene is adsorbed on the dioxin-forming catalytically active site of the fly ash particles and is exposed to a temperature condition of 200 to 400 ° C., the dioxin precursor is catalyzed by the fly ash. Reacts to produce dioxin.

【0006】従来、排ガス中に含まれるこれらのダイオ
キシンを除去する方法として、ごみ焼却炉の排ガス処理
工程において、集塵器手前、スプレーアブソーバー手
前、スクラバー手前等で粉状活性炭を注入してダイオキ
シンを吸着する方法("Organohalogen Compounds" 27:17
7-182(1996))が提案されている。
Conventionally, as a method for removing these dioxins contained in exhaust gas, in the exhaust gas treatment process of a refuse incinerator, powdery activated carbon is injected before a dust collector, before a spray absorber, before a scrubber, or the like to remove dioxin. Method of adsorption ("Organohalogen Compounds" 27:17
7-182 (1996)).

【0007】[0007]

【発明が解決しようとする課題】通常の活性炭は、排ガ
ス中のダイオキシン類を概ね効果的に吸着除去するが、
ダイオキシン類を吸着した活性炭が飛灰と共に集塵装置
で捕集されるため、集塵灰中のダイオキシン濃度が増加
し、別途活性炭処分法を必要とする。
The ordinary activated carbon generally adsorbs and removes dioxins in exhaust gas almost effectively.
Activated carbon adsorbed with dioxins is collected in the dust collector together with fly ash, so that the concentration of dioxin in the collected ash increases and a separate activated carbon disposal method is required.

【0008】さらに、活性炭は、飛灰と同様に、クロロ
ベンゼン、クロロフェノール等のダイオキシン前躯体か
らダイオキシンを生成させる触媒活性を有している。こ
のため、バグフィルタや電気集塵機等の集塵設備内の温
度が200℃以上では、ダイオキシン前駆体を吸着した
活性炭から触媒反応によって多量のダイオキシンが生成
していた。さらに、共存する飛灰の触媒反応によっても
ダイオキシンが発生していた。
Further, activated carbon has a catalytic activity for producing dioxin from a dioxin precursor such as chlorobenzene and chlorophenol, similar to fly ash. For this reason, when the temperature in a dust collecting facility such as a bag filter or an electric dust collector is 200 ° C. or higher, a large amount of dioxin is generated by a catalytic reaction from activated carbon adsorbing a dioxin precursor. Furthermore, dioxin was also generated by the catalytic reaction of the coexisting fly ash.

【0009】本発明は上記従来の問題点を解決し、大気
中に放出されるガス中のダイオキシン濃度を低減するこ
とができるダイオキシン類の放出防止材を提供すること
を目的とする。また、本発明は、集塵設備内におけるダ
イオキシンの生成を防止することができるダイオキシン
類の放出防止材を提供することを目的とする。
An object of the present invention is to solve the above-mentioned conventional problems and to provide a dioxin emission preventing material capable of reducing the concentration of dioxin in a gas released into the atmosphere. Another object of the present invention is to provide a dioxin emission preventive material capable of preventing the generation of dioxins in dust collection equipment.

【0010】さらに、本発明は集塵設備から排出された
活性炭を別途処理する必要がないダイオキシン類の放出
防止材を提供することを目的とする。
A further object of the present invention is to provide a dioxin emission preventing material which does not require separate treatment of activated carbon discharged from a dust collecting facility.

【0011】[0011]

【課題を解決するための手段】本発明のダイオキシン類
の放出防止材は、アミン化合物を担持した活性炭(以下
「アミン担持活性炭」と称する場合がある。)を含むこ
とを特徴とする。
The dioxin emission preventing material of the present invention is characterized in that it contains activated carbon carrying an amine compound (hereinafter sometimes referred to as "amine-loaded activated carbon").

【0012】本発明のダイオキシン類の放出防止材を焼
却炉等の排ガスに注入すると、排ガス中のダイオキシン
は該放出防止材のアミン担持活性炭に吸着し、アミン化
合物と反応して分解する。また、ダイオキシンと共にダ
イオキシン前駆体も活性炭に吸着されるが、活性炭に担
持されているアミン化合物はダイオキシン生成反応を抑
制する作用を有するため、新たなダイオキシンの生成が
抑制される。
When the dioxin emission preventive material of the present invention is injected into exhaust gas from an incinerator or the like, the dioxin in the exhaust gas is adsorbed on the amine-supporting activated carbon of the emission preventive material and reacts with the amine compound to decompose. Further, the dioxin precursor is also adsorbed on the activated carbon together with the dioxin. However, since the amine compound carried on the activated carbon has an action of suppressing the dioxin generation reaction, the generation of new dioxin is suppressed.

【0013】なお、排ガスに添加されたアミン担持活性
炭は集塵設備で集塵されるが、集塵設備内のガス温度を
200℃以上、好ましくは220℃以上とすると、アミ
ン担持活性炭に吸着されたダイオキシンとアミン化合物
との反応(分解反応)が促進される。
The amine-carrying activated carbon added to the exhaust gas is collected by a dust-collecting facility. If the gas temperature in the dust-collecting facility is 200 ° C. or higher, preferably 220 ° C. or higher, the amine-carrying activated carbon is adsorbed on the amine-carrying activated carbon. The reaction (decomposition reaction) between the dioxin and the amine compound is accelerated.

【0014】[0014]

【発明の実施の形態】以下に本発明の実施の形態を詳細
に説明する。
Embodiments of the present invention will be described below in detail.

【0015】本発明において、活性炭としては、その取
り扱い性及び吸着効率等の面から粒径数mm〜20μm
程度のものを用いるのが好ましい。
In the present invention, the activated carbon has a particle size of several mm to 20 μm in view of its handleability and adsorption efficiency.
It is preferable to use those having a degree.

【0016】アミン化合物としては、トリメチルアミン
等のアルキルアミン、トリエタノールアミン、モノエタ
ノールアミン等のアルカノールアミン等の1種又は2種
以上を用いることができ、特にアルカノールアミンがダ
イオキシン分解反応性が高いため好適である。
As the amine compound, one or two or more of alkylamines such as trimethylamine and alkanolamines such as triethanolamine and monoethanolamine can be used. In particular, alkanolamines have high dioxin decomposition reactivity. It is suitable.

【0017】これらのアミン化合物の好ましい担持量
は、活性炭に対して0.1〜10重量%、特に好ましく
は1〜7重量%である。
The preferred loading of these amine compounds is from 0.1 to 10% by weight, particularly preferably from 1 to 7% by weight, based on the activated carbon.

【0018】アミン化合物を活性炭に担持させるには、
アミン化合物を水又はメタノール、エタノール等の有機
溶媒に溶解させた溶液に活性炭を浸漬し、アミン化合物
溶液を含浸させた後加熱又は減圧下で溶媒を蒸発させれ
ば良い。この場合、アミン化合物溶液の濃度は、活性炭
への担持量によって適宜決定され、上述の如く活性炭に
対して0.1〜10重量%程度アミン化合物を担持する
には、0.1〜10重量%程度の濃度のアミン化合物溶
液を用いるのが好ましい。
For supporting the amine compound on activated carbon,
Activated carbon may be immersed in a solution in which an amine compound is dissolved in water or an organic solvent such as methanol or ethanol, and impregnated with the amine compound solution, and then the solvent may be evaporated under heating or reduced pressure. In this case, the concentration of the amine compound solution is appropriately determined depending on the amount of the amine compound to be supported on the activated carbon. It is preferable to use an amine compound solution having a moderate concentration.

【0019】このアミン担持活性炭は排ガスの流れに粒
状又は粉状の形態で添加されるのが好ましい。焼却設備
の場合であれば、例えば焼却炉から集塵機へ向う排ガス
煙道において該アミン担持活性炭が添加されるのが好ま
しい。この煙道におけるアミン担持活性炭の添加箇所
は、集塵機の手前であれば良く、特に制限はないが、排
ガスとアミン担持活性炭との接触時間を長くとるために
は、なるべく上流側で添加するのが好ましい。ただし、
活性炭の燃焼を防止するために排ガス温度500℃以下
のガスに対して本発明の放出防止材を添加するのが好ま
しい。
This activated carbon carrying amine is preferably added to the exhaust gas stream in the form of particles or powder. In the case of incineration equipment, it is preferable that the amine-carrying activated carbon is added, for example, in an exhaust gas flue from an incinerator to a dust collector. The location of addition of the amine-carrying activated carbon in the flue is not particularly limited as long as it is before the dust collector, but in order to increase the contact time between the exhaust gas and the amine-carrying activated carbon, it is preferable that the addition be performed on the upstream side as much as possible. preferable. However,
In order to prevent the combustion of activated carbon, it is preferable to add the emission preventive material of the present invention to a gas having an exhaust gas temperature of 500 ° C. or lower.

【0020】焼却炉排ガスの場合、アミン担持活性炭の
注入量は、排ガス1Nm3 に対して10〜500mg程
度、より好ましくは50〜150mgである。
In the case of incinerator exhaust gas, the injection amount of amine-supported activated carbon is about 10 to 500 mg, more preferably 50 to 150 mg, per 1 Nm 3 of exhaust gas.

【0021】なお、本発明のダイオキシン類放出防止材
の添加箇所は1箇所に限られず、複数箇所であっても良
い。
The addition site of the dioxin emission preventing material of the present invention is not limited to one site, but may be a plurality of sites.

【0022】排ガスは、放出防止材が添加された後、電
気集塵機やバグフィルタ等の集塵設備で集塵処理され
る。この時、集塵機の温度が200℃以上であれば、従
来法では活性炭や飛灰の触媒作用によってダイオキシン
が大量に発生したが、本法では活性炭に吸着捕集された
ダイオキシン又はその前駆体の分解反応が起こると共
に、活性炭に担持されたアミン化合物の一部が揮発し、
周辺に存在する飛灰に作用して、飛灰によるダイオキシ
ン生成反応も抑制する。
After the emission preventing material is added to the exhaust gas, the exhaust gas is subjected to dust collection processing by a dust collecting facility such as an electric dust collector or a bag filter. At this time, if the temperature of the dust collector is 200 ° C. or higher, a large amount of dioxin is generated by the catalytic action of activated carbon or fly ash in the conventional method, but in this method, the decomposition of dioxin or its precursor adsorbed and collected on the activated carbon is performed. As the reaction occurs, part of the amine compound supported on the activated carbon volatilizes,
It acts on fly ash present in the surroundings and also suppresses the dioxin production reaction due to fly ash.

【0023】次に、図1を参照して通常の排ガス処理工
程における放出防止材を添加する例について説明する。
Next, an example in which a release preventing material is added in a normal exhaust gas treatment step will be described with reference to FIG.

【0024】図1に示す処理装置は、焼却炉本体1、電
気集塵機2及びスクラバー3で主に構成され、焼却炉本
体1で投入物4が燃焼し、排ガス5が煙道7を経て集塵
工程に送られる。焼却炉本体1からはボトムアッシュ6
が排出される。電気集塵機2からは捕集された飛灰8が
排出される。排ガスは更にスクラバー3を経て煙突9か
ら大気へ排出される。
The processing apparatus shown in FIG. 1 is mainly composed of an incinerator main body 1, an electric dust collector 2 and a scrubber 3, in which the input material 4 burns in the incinerator main body 1, and the exhaust gas 5 passes through a flue 7 for dust collection. Sent to the process. Bottom ash 6 from incinerator body 1
Is discharged. The collected fly ash 8 is discharged from the electric dust collector 2. The exhaust gas is further discharged from the chimney 9 through the scrubber 3 to the atmosphere.

【0025】本発明の放出防止材は、例えば、図のB点
〜E点の間のいずれか1箇所又は複数箇所で添加され
る。
The release-preventing material of the present invention is added, for example, at any one or a plurality of points between points B to E in the drawing.

【0026】本発明の放出防止材は、電気集塵機に限ら
ずバグフィルタなどの各種の集塵設備が設置されている
燃焼設備においても添加することができる。なお、この
集塵設備内の温度を200℃以上とくに220℃以上と
すると、アミン担持活性炭に吸着されたダイオキシンを
活性炭に担持されているアミン化合物との反応で分解す
ることができる。
The emission preventive material of the present invention can be added not only to an electric dust collector but also to a combustion facility provided with various dust collecting facilities such as a bag filter. When the temperature inside the dust collecting facility is set to 200 ° C. or more, particularly 220 ° C. or more, dioxin adsorbed on the amine-supported activated carbon can be decomposed by reaction with the amine compound supported on the activated carbon.

【0027】本発明のダイオキシン類の放出防止材は、
各種都市ごみ焼却炉の他、産業廃棄物焼却炉、医療廃棄
物焼却炉、焼却灰溶融炉、RDF炉からの各種排ガス等
に適用することができる。また、ストーカ炉、ロータリ
ーキルン、流動床炉等の炉の種類や連続炉、準連続炉、
バッチ炉など炉の型式にも係わりなく各種の炉からの排
ガスの処理に適用可能である。
The dioxin release inhibitor of the present invention comprises:
In addition to various municipal waste incinerators, it can be applied to various types of exhaust gas from industrial waste incinerators, medical waste incinerators, incineration ash melting furnaces, RDF furnaces, and the like. In addition, furnace types such as stoker furnace, rotary kiln, fluidized bed furnace, continuous furnace, quasi-continuous furnace,
It can be applied to the treatment of exhaust gas from various furnaces regardless of the type of furnace such as a batch furnace.

【0028】[0028]

【実施例】以下に実施例及び比較例を挙げて、本発明の
効果を示す。
EXAMPLES The effects of the present invention will be described below with reference to examples and comparative examples.

【0029】実施例1 ストーカ炉、廃熱ボイラ及びバグフィルタからなる実験
用焼却炉において都市ごみを焼却させ、その排ガスにア
ミン担持活性炭を、排ガス1Nm3 に対し100mgの
割合で、バグフィルタ手前の排ガス温度約300℃程度
の地点に注入し、下記測定方法でダイオキシン濃度の測
定を行った。廃棄物焼却量は150t/24hr、排ガ
ス流量は約40,000Nm3 /hr、バグフィルタに
流入する排ガス中の煤塵濃度は2.0g/Nm3 であ
り、バグフィルタ内の平均ガス温度は220℃であっ
た。バグフィルタでは4時間に1回の間隔でフィルタに
捕集した集塵灰を払い落とした。
[0029] Example 1 stoker, in a laboratory incinerator consisting of a waste heat boiler and bag filter is incinerated municipal waste, the amine-carrying activated carbon to the exhaust gas at a rate of 100mg to exhaust gas 1 Nm 3, before the bag filter The exhaust gas was injected at a temperature of about 300 ° C., and the dioxin concentration was measured by the following measurement method. The amount of waste incinerated is 150 t / 24 hr, the exhaust gas flow rate is about 40,000 Nm 3 / hr, the concentration of dust in the exhaust gas flowing into the bag filter is 2.0 g / Nm 3 , and the average gas temperature in the bag filter is 220 ° C. Met. In the bag filter, dust collected on the filter was removed at intervals of once every four hours.

【0030】なお、用いたアミン担持活性炭は、ピート
を原料とする平均粒径20μmの活性炭と5重量%トリ
エタノールアミン水溶液を重量比1:1で混合し十分に
撹拌した後、加熱して水分を除去して調製した。このア
ミン担持活性炭のトリエタノールアミン担持量は5重量
%であった。
The amine-carrying activated carbon used was a mixture of activated carbon made of peat having an average particle diameter of 20 μm and a 5% by weight aqueous solution of triethanolamine at a weight ratio of 1: 1 and thoroughly stirred. Was prepared. The amount of triethanolamine supported by the amine-supported activated carbon was 5% by weight.

【0031】ダイオキシン濃度の測定方法 (財)廃棄物研究財団の「ダイオキシン類分析マニュア
ル」に準拠して試料採取及び分析を行った。なお、ダイ
オキシン分析用の試料は、バグフィルタ出口排ガス、集
塵灰の2点とした。
Measurement of Dioxin Concentration Samples were collected and analyzed in accordance with the “Manual for Analysis of Dioxins” of the Waste Research Foundation. The samples for dioxin analysis were two points: exhaust gas at the outlet of the bag filter and dust ash.

【0032】結果を表1に示す。なお、表1にはアミン
担持活性炭を添加しなかった場合のダイオキシン濃度を
ブランクとして示す。
The results are shown in Table 1. Table 1 shows the dioxin concentration when no amine-supported activated carbon was added as a blank.

【0033】比較例1 トリエタノールアミンを担持していない活性炭を注入し
たこと以外は実施例1と同様に行ってダイオキシン濃度
を測定し、結果を表1に示した。
Comparative Example 1 The dioxin concentration was measured in the same manner as in Example 1 except that activated carbon not carrying triethanolamine was injected, and the results are shown in Table 1.

【0034】実施例2 実施例1において、アミン担持活性炭として、5重量%
モノエタノールアミン担持活性炭を用いたこと以外は同
様に行って、ダイオキシン濃度を測定し、結果を表1に
示した。
Example 2 The same procedure as in Example 1 was carried out except that 5% by weight
Dioxin concentration was measured in the same manner except that monoethanolamine-supported activated carbon was used, and the results are shown in Table 1.

【0035】実施例3 実施例1において、アミン担持活性炭として、5重量%
トリメチルアミン担持活性炭を用いたこと以外は同様に
行って、ダイオキシン濃度を測定し、結果を表1に示し
た。
Example 3 The procedure of Example 1 was repeated except that the amine-supported activated carbon was 5% by weight.
The dioxin concentration was measured in the same manner except that trimethylamine-supported activated carbon was used, and the results are shown in Table 1.

【0036】[0036]

【表1】 [Table 1]

【0037】表1より、アミン担持活性炭によれば、排
ガス中のダイオキシン濃度及び集塵灰中のダイオキシン
濃度を共に低減できることがわかる。
From Table 1, it can be seen that the amine-supported activated carbon can reduce both the dioxin concentration in the exhaust gas and the dioxin concentration in the dust ash.

【0038】[0038]

【発明の効果】以上詳述した通り、本発明のダイオキシ
ン類の放出防止材によれば、排ガス中のダイオキシンを
効率的に吸着除去して排ガス中のダイオキシン濃度を低
減すると共に、煙道および集塵設備でのダイオキシンの
生成防止および分解反応により、集塵灰中のダイオキシ
ン濃度をも低減することができる。
As described above in detail, according to the dioxin emission preventive material of the present invention, dioxin in exhaust gas is efficiently adsorbed and removed to reduce the concentration of dioxin in the exhaust gas, and the flue gas and exhaust gas are collected. The dioxin concentration in the dust ash can also be reduced by the prevention of dioxin generation and the decomposition reaction in the dust facility.

【図面の簡単な説明】[Brief description of the drawings]

【図1】本発明の実施の形態を説明する排ガス処理工程
の模式的断面図である。
FIG. 1 is a schematic cross-sectional view of an exhaust gas treatment process illustrating an embodiment of the present invention.

【符号の説明】[Explanation of symbols]

1 焼却炉本体 2 電気集塵機 3 スクラバー 4 投入物 5 排ガス 6 ボトムアッシュ 7 煙道 8 飛灰 9 煙突 DESCRIPTION OF SYMBOLS 1 Incinerator main body 2 Electric dust collector 3 Scrubber 4 Input material 5 Exhaust gas 6 Bottom ash 7 Flue 8 Fly ash 9 Chimney

─────────────────────────────────────────────────────
────────────────────────────────────────────────── ───

【手続補正書】[Procedure amendment]

【提出日】平成9年7月7日[Submission date] July 7, 1997

【手続補正1】[Procedure amendment 1]

【補正対象書類名】明細書[Document name to be amended] Statement

【補正対象項目名】0015[Correction target item name] 0015

【補正方法】変更[Correction method] Change

【補正内容】[Correction contents]

【0015】本発明において、活性炭としては、その取
り扱い性及び吸着効率等の面から粒径数mm〜10μm
程度のものを用いるのが好ましい。
In the present invention, the activated carbon has a particle size of several mm to 10 μm in view of its handleability and adsorption efficiency.
It is preferable to use those having a degree.

フロントページの続き (72)発明者 藤原 昇 東京都新宿区西新宿3丁目4番7号 栗田 工業株式会社内Continued on the front page (72) Inventor Noboru Fujiwara 3-4-7 Nishi-Shinjuku, Shinjuku-ku, Tokyo Inside Kurita Industry Co., Ltd.

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】 アミン化合物を担持した活性炭を含むこ
とを特徴とするダイオキシン類の放出防止材。
1. A dioxin release preventive material comprising activated carbon carrying an amine compound.
JP9167390A 1997-06-24 1997-06-24 Material for preventing emission of dioxin Pending JPH119960A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9167390A JPH119960A (en) 1997-06-24 1997-06-24 Material for preventing emission of dioxin

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9167390A JPH119960A (en) 1997-06-24 1997-06-24 Material for preventing emission of dioxin

Publications (1)

Publication Number Publication Date
JPH119960A true JPH119960A (en) 1999-01-19

Family

ID=15848824

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9167390A Pending JPH119960A (en) 1997-06-24 1997-06-24 Material for preventing emission of dioxin

Country Status (1)

Country Link
JP (1) JPH119960A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4869225A (en) * 1987-10-26 1989-09-26 Nippondenso Co., Ltd. Fuel supply device for vehicles
US4886031A (en) * 1987-06-13 1989-12-12 Daimler-Benz Aktiengesellschaft Dashpot with filter for fuel tanks
JP2001087411A (en) * 1999-09-24 2001-04-03 Nishimatsu Constr Co Ltd Dioxins decontaminating method and dioxins treatment device
JP2003210939A (en) * 2002-01-25 2003-07-29 Kurita Water Ind Ltd Method for preventing emission of dioxins and related compound

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4886031A (en) * 1987-06-13 1989-12-12 Daimler-Benz Aktiengesellschaft Dashpot with filter for fuel tanks
US4869225A (en) * 1987-10-26 1989-09-26 Nippondenso Co., Ltd. Fuel supply device for vehicles
JP2001087411A (en) * 1999-09-24 2001-04-03 Nishimatsu Constr Co Ltd Dioxins decontaminating method and dioxins treatment device
JP2003210939A (en) * 2002-01-25 2003-07-29 Kurita Water Ind Ltd Method for preventing emission of dioxins and related compound

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