JPH04200703A - Filtering material for exhaust gas purification - Google Patents
Filtering material for exhaust gas purificationInfo
- Publication number
- JPH04200703A JPH04200703A JP2339678A JP33967890A JPH04200703A JP H04200703 A JPH04200703 A JP H04200703A JP 2339678 A JP2339678 A JP 2339678A JP 33967890 A JP33967890 A JP 33967890A JP H04200703 A JPH04200703 A JP H04200703A
- Authority
- JP
- Japan
- Prior art keywords
- filter medium
- exhaust gas
- organic chlorine
- catalyst
- chlorine compounds
- 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
Landscapes
- Filtering Materials (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は、焼却炉等から排出された排ガス中に煤塵と
共に含有されている、ポリ塩化ジベンゾダイオキシン、
ポリ塩化ジベンゾフラン等の有機塩素化合物を、煤塵と
共に除去して、排ガスを浄化するための濾材に関するも
のである。[Detailed Description of the Invention] [Field of Industrial Application] This invention is directed to the treatment of polychlorinated dibenzodioxins, which are contained together with soot and dust in exhaust gas discharged from incinerators,
The present invention relates to a filter medium for purifying exhaust gas by removing organic chlorine compounds such as polychlorinated dibenzofurans together with soot and dust.
産業廃棄物や都市ごみを処理するための焼却炉等から発
生する排ガス中には、煤塵と共に、微量ではあるが極め
て強い毒性を有する、ポリ塩化ジベンゾダイオキシン（
ＰＣＤＤｓ）、ポリ塩化ジベンゾフラン（ＰＣＤＰＳ）
等の有機塩素化合物が含有されている。このような排ガ
ス中からの有機塩素化合物の除去は、公害防止上、極め
て重要である。In the exhaust gas generated from incinerators for processing industrial waste and municipal waste, along with soot, polychlorinated dibenzodioxin (polychlorinated dibenzodioxin (
PCDDs), polychlorinated dibenzofurans (PCDPS)
Contains organic chlorine compounds such as Removal of such organic chlorine compounds from exhaust gas is extremely important in terms of pollution prevention.
排ガス中からの有機塩素化合物の除去方法として、排ガ
スを有機塩素化合物酸化用触媒に接触させ、排ガス中に
含有されている有機塩素化合物を酸化して除去する方法
が知られている。As a method for removing organic chlorine compounds from exhaust gas, a method is known in which the exhaust gas is brought into contact with a catalyst for oxidizing organic chlorine compounds to oxidize and remove the organic chlorine compounds contained in the exhaust gas.
一方、焼却炉等から発生する排ガス中には、多量の煤塵
が含有されている。このために、排ガスを集塵機に導き
、集塵機の濾材によって排ガス中から煤塵を除去するこ
とが行われている。On the other hand, exhaust gas generated from incinerators and the like contains a large amount of soot and dust. For this purpose, exhaust gas is introduced into a dust collector, and soot and dust are removed from the exhaust gas using a filter medium of the dust collector.
従って、排ガス中からの有機塩素化合物および煤塵の除
去は、従来、第２図の工程図に示すように、排ガスを、
先ず集塵機３に導き、集塵機３において濾材により排ガ
ス中の煤塵を除去し、次いで、集塵機３の下流側に配置
された有機塩素化合物除去用反応器４において、有機塩
素化合物酸化用触媒により、排ガス中の有機塩素化合物
を酸化して除去することにより行っていた。Therefore, in order to remove organic chlorine compounds and soot dust from exhaust gas, conventionally, as shown in the process diagram of Fig. 2, exhaust gas is
First, the soot and dust in the exhaust gas is removed by a filter medium in the dust collector 3, and then in the reactor 4 for removing organic chlorine compounds located downstream of the dust collector 3, the soot and dust in the exhaust gas is removed by a catalyst for oxidizing organic chlorine compounds. This was done by oxidizing and removing the organic chlorine compounds.
上述したように、従来は、集塵機３と有機塩素化合物除
去用反応器４とを別個に設け、先ず、集塵機３において
、濾材により排ガス中から煤塵を除去し、次いで、有機
塩素化合物除去用反応器４において、有機塩素化合物酸
化用触媒により排ガス中から、有機塩素化合物を除去し
ていた。このために、広いスペースを必要とする上、設
備が複雑になり、多額の設備費および運転費を要する等
の問題があった。As described above, conventionally, the dust collector 3 and the reactor 4 for removing organic chlorine compounds are provided separately, and the dust collector 3 first removes soot and dust from the exhaust gas using a filter medium, and then the reactor for removing organic chlorine compounds In No. 4, organic chlorine compounds were removed from exhaust gas using a catalyst for oxidizing organic chlorine compounds. For this reason, there are problems in that a large space is required, the equipment is complicated, and a large amount of equipment and operating costs are required.
従って、この発明の目的は、焼却炉等から排出された排
ガス中に含有されている、ポリ塩化ジベンゾダイオキシ
ン、ポリ塩化ジベンゾフラン等の強い毒性を有する有機
塩素化合物、および、煤塵を、従来のように、集塵機と
有機塩素化合物除去用反応器とを別個に設けることなく
、集塵機の濾材によって、共に効率的に除去し、設備を
コンパクト化することができる排ガス浄化用濾材を提供
することにある。Therefore, it is an object of the present invention to remove highly toxic organic chlorine compounds such as polychlorinated dibenzodioxins and polychlorinated dibenzofurans, and soot dust, which are contained in exhaust gas discharged from incinerators, etc. To provide a filter medium for purifying exhaust gas, which can efficiently remove a dust collector and a reactor for removing organic chlorine compounds by using a filter medium of a dust collector without separately providing them, and can downsize the equipment.
本発明者等は、上述した問題を解決すべく鋭意研究を重
ねた。その結果、集塵機に取り付けられる濾材の少なく
とも一部を、有機塩素化合物酸化用触媒によって構成す
れば、排ガス中から、有機塩素化合物および煤塵を共に
除去して排ガスを浄化し得ることを知見した。The inventors of the present invention have conducted extensive research in order to solve the above-mentioned problems. As a result, it was found that if at least a part of the filter medium attached to the dust collector is composed of a catalyst for oxidizing organic chlorine compounds, it is possible to purify the exhaust gas by removing both organic chlorine compounds and soot dust from the exhaust gas.
この発明は、上記知見に基づいてなされたものであって
、排ガス中の煤塵を除去するための、集塵機に取り付け
られる濾材において、前記濾材の少なくとも一部が、前
記排ガス中の有機塩素化合物を酸化して除去するための
有機塩素化合物酸化用触媒によって構成されていること
に特徴を有するものである。The present invention has been made based on the above findings, and provides a filter medium attached to a dust collector for removing soot and dust in exhaust gas, in which at least a part of the filter medium oxidizes organic chlorine compounds in the exhaust gas. It is characterized in that it is composed of a catalyst for oxidizing organic chlorine compounds to remove them.
この発明の排ガス浄化用濾材においては、上述したよう
に、濾材の少なくとも一部が、有機塩素化合物酸化用触
媒によって構成されている。従って、このような濾材が
取り付けられた集塵機に排ガスを導けば、濾材によって
、排ガス中の有機塩素化合物および煤塵を、共に効率的
に除去することができる。In the exhaust gas purifying filter medium of the present invention, as described above, at least a portion of the filter medium is constituted by an organic chlorine compound oxidation catalyst. Therefore, if exhaust gas is guided to a dust collector equipped with such a filter medium, both organic chlorine compounds and soot dust in the exhaust gas can be efficiently removed by the filter medium.
濾材の少なくとも一部を構成する有機塩素化合物酸化用
触媒としては、Ｔｉ、 Ｓｉ、 ＡｌおよびＺｒからな
る群から選択された少なくとも１種の金属の酸化物から
なる基体の表面上に、Ｐｔ、 Ｐｄ、 Ｒｕ、 Ｍｎ、
Ｃｕ、 ＣｒおよびＦｅからなる群から選択された少
なくとも１種の金属またはその酸化物からなる触媒成分
が担持された触媒を使用することが好ましい。The catalyst for oxidizing an organic chlorine compound constituting at least a part of the filter medium includes Pt, Pd, etc. on the surface of a substrate made of an oxide of at least one metal selected from the group consisting of Ti, Si, Al, and Zr. , Ru, Mn,
It is preferable to use a catalyst on which a catalyst component consisting of at least one metal selected from the group consisting of Cu, Cr and Fe or an oxide thereof is supported.
特に、好ましい触媒は、３Ａ１２０．・２ＳｉＯ□を含
有する酸化物の表面上にＴｉＯ２が被覆された酸化物、
ＴｌＯ２−３１０２またはＴ＋０ｚ−Ｚｒ０２の２元系
複合酸化物、および、’ｒｊｏ、−５ｉｏ２−Ａ１２ｏ
１ またはＴｉＯ，−３ｉＯｚ−ＺｒＯｚの３元系複合
酸化物を基体とし、この基体の表面上に、上述した、Ｐ
ｔ、 Ｐｄ、 Ｒｕ、 Ｍｎ、 Ｃｕ、 ＣｒおよびＦ
ｅからなる群から選択された少なくとも１種の金属また
はその酸化物からなる触媒成分が担持された触媒である
。A particularly preferred catalyst is 3A120.・An oxide in which TiO2 is coated on the surface of an oxide containing 2SiO□,
Binary complex oxide of TlO2-3102 or T+0z-Zr02, and 'rjo, -5io2-A12o
1 or TiO, -3iOz-ZrOz ternary complex oxide is used as a base, and on the surface of this base, the above-mentioned P
t, Pd, Ru, Mn, Cu, Cr and F
This is a catalyst on which a catalyst component consisting of at least one metal selected from the group consisting of e. or its oxide is supported.
このような触媒は、ＮＯｘ、 ＳＯｘ、 ＨＣＩ、 Ｃ
Ｏおよびハロゲンガス等の存在する環境下において、ポ
リ塩化ジベンゾダイオキシン、ポリ塩化ジベンゾフラン
等の毒性を有する有機塩素化合物を、長期にわたり、効
率よく分解して除去することができる。Such catalysts can be used for NOx, SOx, HCI, C
In an environment where O and halogen gases are present, toxic organic chlorine compounds such as polychlorinated dibenzodioxins and polychlorinated dibenzofurans can be efficiently decomposed and removed over a long period of time.
特に、基体を、３ＡｌＪ１ ” ２Ｓｉ０２即ちムライ
トを含有する酸化物の表面上にＴｉｅ２が被覆された構
造にすれば、ムライトの表面上に被覆されたＴｉｅｓに
より、基体の表面に微細な凹凸が形成されるので、ｐｔ
等の触媒成分を担持させて高活性を得るのに必要な表面
積を十分に確保することがき、且つ、ムライの表面上を
被覆するＴｉｅ、によって、優れた耐酸性が付与される
。In particular, if the substrate has a structure in which Tie2 is coated on the surface of 3AlJ1''2Si02, that is, an oxide containing mullite, fine irregularities will be formed on the surface of the substrate by the Ties coated on the surface of mullite. pt.
It is possible to sufficiently secure the surface area necessary to support catalyst components such as the like to obtain high activity, and the Tie coating the surface of the Murai imparts excellent acid resistance.
この発明の濾材においては、その全部を前述した有機塩
素化合物酸化用触媒によって構成してもよく、または、
その一部を前述した有機塩素化合物酸化用触媒によって
構成してもよい。The filter medium of the present invention may be entirely composed of the above-mentioned catalyst for oxidizing organic chlorine compounds, or
A part of it may be constituted by the above-mentioned catalyst for oxidizing an organic chlorine compound.
次に、この発明の濾材の構成の一例を示す。Next, an example of the structure of the filter medium of the present invention will be shown.
（ａ）濾材全体が前述した有機塩素化合物酸化用触媒か
らなり、ガス排出側であって、濾材全体の厚さの５０％
以内の部分に、前述した触媒成分のうちの７０ｗｔ、％
以上が担持されている濾材。(a) The entire filter medium is made of the above-mentioned organic chlorine compound oxidation catalyst, and the gas discharge side accounts for 50% of the thickness of the entire filter medium.
70wt% of the catalyst components mentioned above
A filter medium that supports the above.
（ｂ）ガス流入側に、前述した触媒の基体とじての、Ｔ
ｉ、 Ｓｉ、 ＡｌおよびＺｒからなる群から選択され
た少なくとも１種の金属の酸化物が配置され、そして、
ガス排出側に、前述した有機塩素化合物酸化用触媒が配
置されている濾材。(b) On the gas inflow side, T as the base of the catalyst described above.
an oxide of at least one metal selected from the group consisting of i, Si, Al and Zr, and
A filter medium in which the aforementioned organic chlorine compound oxidation catalyst is arranged on the gas discharge side.
（Ｃ）ガス流入側に、従来の濾材が配置され、そして、
ガス排出側に、前述した有機塩素化合物酸化用触媒が配
置されている濾材。(C) A conventional filter medium is placed on the gas inflow side, and
A filter medium in which the aforementioned organic chlorine compound oxidation catalyst is arranged on the gas discharge side.
上述した構造の濾材によれば、煤塵による触媒層の目詰
まりが少なくなり、その劣化の進行が抑止されて、寿命
を伸ばすことができる。According to the filter medium having the above-described structure, clogging of the catalyst layer due to soot and dust is reduced, and progress of deterioration thereof is suppressed, thereby extending the life of the filter medium.
第１図は、この発明の濾材の１実施態様を示す概略斜視
図である。第１図に示すように、濾材Ａは、上下両端が
開口した円筒状であって、外側層１と、内側層２とから
なっている。外側層１は、有機塩素化合物酸化用触媒の
基体としての、Ｔｉ、 Ｓｉ、ＡｌおよびＺ「からなる
群から選択された少な（とも１種の金属の酸化物からな
っている。内側層２は、前述した有機塩素化合物酸化用
触媒からなっている。FIG. 1 is a schematic perspective view showing one embodiment of the filter medium of the present invention. As shown in FIG. 1, the filter medium A has a cylindrical shape with both upper and lower ends open, and is composed of an outer layer 1 and an inner layer 2. The outer layer 1 is made of an oxide of one metal selected from the group consisting of Ti, Si, Al and Z as a substrate for a catalyst for oxidizing an organochlorine compound. , the above-mentioned catalyst for oxidizing organic chlorine compounds.
排ガスは、矢印で示すように、外側層１から、内側層２
に向けて流れ、上部開口端から排出される。この間に、
排ガス中の有機塩素化合物および煤塵は、共に除去され
る。なお、濾材の形状は、上述したような円筒状に限ら
れるものではなく、板状その他任意の形状にすることが
できる。The exhaust gas flows from the outer layer 1 to the inner layer 2 as shown by the arrow.
and is discharged from the upper open end. During this time,
Both organic chlorine compounds and soot in the exhaust gas are removed. Note that the shape of the filter medium is not limited to the cylindrical shape described above, but may be a plate shape or any other arbitrary shape.
また、濾材の少な（と一部を、窒素酸化物還元用触媒と
有機塩素化合物酸化用触媒とが積層された触媒によって
構成すれば、排ガス中から、有機塩素化合物および煤塵
と共に、窒素酸化物（Ｎ０ｘ）も除去することができる
。In addition, if the filter material is small (and part of it is composed of a catalyst in which a catalyst for reducing nitrogen oxides and a catalyst for oxidizing organic chlorine compounds are laminated), nitrogen oxides ( NOx) can also be removed.
次に、この発明を、実施例によって説明する。Next, this invention will be explained by way of examples.
第１図に示した、外側層１と内側層２とによって構成さ
れた、下記寸法および材質からなる円筒状の濾材Ａを使
用した。A cylindrical filter medium A shown in FIG. 1, consisting of an outer layer 1 and an inner layer 2, having the following dimensions and materials was used.
濾材Ａの外径 ： １１０ ｍｍ
濾材Ａの内径 ： １０４ ｍｍ
濾材Ａの厚さ ：３ｍｍ
外側層１の厚さ： １．５ ＋ｎｍ
外側層１の材質：ＴｉとＳｉとが８．５：１，５（モル
比）の割合で複合されたＴｉ −Ｓｉ酸
化物
内側層２の厚さ＝１．５ｍｍ
内側層２の材質：
ＴｉとＳｉとが８．５＋１．５（モル比）の割合で複合
されたＴｉ −Ｓｉ酸化物からなる基体に、触媒成分と
してＰｔが担持（担持量：１．５ｇ／触媒１）されてな
る触媒
上述した濾材を使用し、下記排ガス中から、ポリ塩化ジ
ベンゾダイオキシン（ＰＣＤＤｓ）および煤塵を除去し
た。Outer diameter of filter medium A: 110 mm Inner diameter of filter medium A: 104 mm Thickness of filter medium A: 3 mm Thickness of outer layer 1: 1.5 + nm Material of outer layer 1: Ti and Si 8.5:1, Thickness of Ti-Si oxide inner layer 2 composited at a ratio of 5 (molar ratio) = 1.5 mm Material of inner layer 2: Ti and Si composited at a ratio of 8.5 + 1.5 (mole ratio) Using the above-mentioned filter medium, in which Pt is supported as a catalyst component (carrying amount: 1.5 g/catalyst 1) on a substrate made of Ti-Si oxide, polychlorinated dibenzodioxin ( PCDDs) and soot were removed.
排ガス中のＰＣＤＤｓ含有量 ２０００〜４０００ｎｇ
／Ｎｍ”排ガス中の煤塵含有量 ＝１０〜２０ｇ／Ｎ＋
ｎ”排ガスの温度 ＝２５０℃
排ガスの流速 ： ０．８ ｍ／ｓｅｅ上述
した条件によって、濾材により浄化した後の、排ガス中
のポリ塩化ジベンゾダイオキシン（ＰＣＤＤｓ）および
煤塵の含有量を調べたところ、次の通りであった。PCDDs content in exhaust gas 2000-4000ng
/Nm” Soot and dust content in exhaust gas = 10 to 20g/N+
n" Temperature of exhaust gas = 250°C Flow rate of exhaust gas: 0.8 m/see When the contents of polychlorinated dibenzodioxins (PCDDs) and soot dust in the exhaust gas after purification with a filter medium were investigated under the above conditions, It was as follows.
浄化後の排ガス中のＰＣＤＤｓ含有量：２〜５ｎｇ／？
Ｊ＋ｎ”浄化後の排ガス中の煤塵含有量： ０．００１
ｇ／Ｎｍ”〔発明の効果〕
以上述べたように、この発明によれば、焼却炉等から排
出された排ガス中に含有されている、ポリ塩化ジベンゾ
ダイオキシン、ポリ塩化ジベンゾフラン等の強い毒性を
有する有機塩素化合物、および、煤塵を、従来のように
、集塵機と有機塩素化合物除去用反応器とを別個に設け
る必要なく、集塵機の濾材によって、共に効率的に除去
することができ、従って、従来よりも狭いスペースによ
るコンパクト化された設備で済み、極めて経済的である
等、多（の工業上有用な効果がもたらされる。PCDDs content in exhaust gas after purification: 2 to 5 ng/?
J+n” Soot and dust content in exhaust gas after purification: 0.001
g/Nm" [Effects of the Invention] As described above, according to the present invention, highly toxic polychlorinated dibenzodioxins, polychlorinated dibenzofurans, etc. contained in exhaust gas discharged from incinerators, etc. Organic chlorine compounds and soot dust can be efficiently removed together by the filter medium of the dust collector without the need to separately provide a dust collector and a reactor for removing organic chlorine compounds as in the past. It also requires compact equipment in a narrow space, is extremely economical, and has many industrially useful effects.
第１図は、第この発明の濾材の１実施態様を示す概略斜
視図、第２図は、排ガス中から煤塵および有機塩素化合
物を除去するための従来の工程図である。図面において
、
Ａ・−濾材
１−・外側層、 ２−・・内側層、Ｓ−集塵機
、
４・・−・有機塩素化合物除去用反応器。FIG. 1 is a schematic perspective view showing one embodiment of the filter medium of the present invention, and FIG. 2 is a conventional process diagram for removing soot dust and organic chlorine compounds from exhaust gas. In the drawings, A.--filter medium 1--outer layer, 2--.inner layer, S--dust collector, 4--.reactor for removing organic chlorine compounds.
Claims (1)
けられる濾材において、前記濾材の少なくとも一部が、
前記排ガス中の有機塩素化合物を酸化して除去するため
の有機塩素化合物酸化用触媒を含む濾材によって構成さ
れていることを特徴とする、排ガス浄化用濾材。 ２、前記有機塩素化合物酸化用触媒として、Ｔｉ、Ｓｉ
、ＡｌおよびＺｒからなる群から選択された少なくとも
１種の金属の酸化物からなる基体の表面上に、Ｐｔ、Ｐ
ｄ、Ｒｕ、Ｍｎ、Ｃｕ、ＣｒおよびＦｅからなる群から
選択された少なくとも１種の金属またはその酸化物空な
る触媒成分が担持された触媒を使用する、請求項１記載
の濾材。 ３、前記有機塩素化合物酸化用触媒の前記基体が、３Ａ
ｌ＿２Ｏ＿３・２ＳｉＯ＿２を含有する酸化物の表面上
にＴｉＯ＿２が被覆された酸化物からなっている、請求
項２記載の濾材。 ４、前記有機塩素化合物酸化用触媒の前記基体が、Ｔｉ
Ｏ＿２−ＳｉＯ＿２、ＴｉＯ＿２−ＺｒＯ＿２、ＴｉＯ
＿２−ＳｉＯ＿２−Ａｌ＿２Ｏ＿３およびＴｉＯ＿２−
ＳｉＯ＿２−ＺｒＯ＿２のうちの何れか１つの複合酸化
物からなっている、請求項２記載の濾材。[Claims] 1. In a filter medium attached to a dust collector for removing soot and dust in exhaust gas, at least a part of the filter medium:
A filter medium for exhaust gas purification, characterized in that it is constituted by a filter medium containing an organic chlorine compound oxidation catalyst for oxidizing and removing organic chlorine compounds in the exhaust gas. 2. As the catalyst for oxidizing the organic chlorine compound, Ti, Si
, Pt, Pt, Pt, Pt,
2. The filter medium according to claim 1, wherein a catalyst is used which supports a catalyst component consisting of at least one metal or an oxide thereof selected from the group consisting of Ru, Mn, Cu, Cr and Fe. 3. The substrate of the catalyst for oxidizing an organic chlorine compound is 3A
The filter medium according to claim 2, comprising an oxide containing TiO_2 coated on the surface of an oxide containing l_2O_3.2SiO_2. 4. The substrate of the catalyst for oxidizing an organic chlorine compound is Ti
O_2-SiO_2, TiO_2-ZrO_2, TiO
_2-SiO_2-Al_2O_3 and TiO_2-
The filter medium according to claim 2, comprising a composite oxide of any one of SiO_2-ZrO_2.
Priority Applications (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2339678A JPH0734845B2 (en) | 1990-11-30 | 1990-11-30 | Filter media for exhaust gas purification |
| US07/791,571 US5294419A (en) | 1990-11-30 | 1991-11-12 | Method for removing nitrogen oxides and organic chlorine compounds from combustion waste gas |
| CA002055521A CA2055521A1 (en) | 1990-11-30 | 1991-11-14 | Method and filter for removing nitrogen oxides and organic chlorine compounds from combustion waste gas |
| DE69125103T DE69125103T2 (en) | 1990-11-30 | 1991-11-28 | Process and filter for the removal of nitrogen oxides and organic chlorine compounds from waste gases from combustion plants |
| EP91120455A EP0488331B1 (en) | 1990-11-30 | 1991-11-28 | Method and filter for removing nitrogen oxides and organic chlorine compounds from combustion waste gas |
| KR1019910021762A KR950004139B1 (en) | 1990-11-30 | 1991-11-29 | Removing method and filter of nitrogen oxide and organic chlorine compound from fuel gas |
| TW081100949A TW199111B (en) | 1990-11-30 | 1992-02-11 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2339678A JPH0734845B2 (en) | 1990-11-30 | 1990-11-30 | Filter media for exhaust gas purification |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04200703A true JPH04200703A (en) | 1992-07-21 |
| JPH0734845B2 JPH0734845B2 (en) | 1995-04-19 |
Family
ID=18329765
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2339678A Expired - Lifetime JPH0734845B2 (en) | 1990-11-30 | 1990-11-30 | Filter media for exhaust gas purification |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0734845B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4807935B2 (en) * | 2001-12-29 | 2011-11-02 | ポール・コーポレーション | Filter element |
| CN113041862A (en) * | 2021-04-02 | 2021-06-29 | 上海洁晟环保科技有限公司 | Composite membrane material, preparation method thereof, filtering membrane and storage device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61249542A (en) * | 1985-04-27 | 1986-11-06 | Bridgestone Corp | Catalyst for purifying exhaust gas |
| JPS63171615A (en) * | 1987-01-06 | 1988-07-15 | Mitsubishi Heavy Ind Ltd | Catalytic filter for treating exhaust gas |
| JPS642423A (en) * | 1987-06-25 | 1989-01-06 | Mitsubishi Electric Corp | Receiver |
| JPH0235914A (en) * | 1988-07-22 | 1990-02-06 | Mitsui Eng & Shipbuild Co Ltd | Exhaust gas treatment process for waste incinerator |
-
1990
- 1990-11-30 JP JP2339678A patent/JPH0734845B2/en not_active Expired - Lifetime
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61249542A (en) * | 1985-04-27 | 1986-11-06 | Bridgestone Corp | Catalyst for purifying exhaust gas |
| JPS63171615A (en) * | 1987-01-06 | 1988-07-15 | Mitsubishi Heavy Ind Ltd | Catalytic filter for treating exhaust gas |
| JPS642423A (en) * | 1987-06-25 | 1989-01-06 | Mitsubishi Electric Corp | Receiver |
| JPH0235914A (en) * | 1988-07-22 | 1990-02-06 | Mitsui Eng & Shipbuild Co Ltd | Exhaust gas treatment process for waste incinerator |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4807935B2 (en) * | 2001-12-29 | 2011-11-02 | ポール・コーポレーション | Filter element |
| CN113041862A (en) * | 2021-04-02 | 2021-06-29 | 上海洁晟环保科技有限公司 | Composite membrane material, preparation method thereof, filtering membrane and storage device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0734845B2 (en) | 1995-04-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0547226B1 (en) | Method of oxidative decomposition of organic halogen compound | |
| CN107427771B (en) | Catalytic ceramic candle filter and method for cleaning exhaust or exhaust gas | |
| KR950004139B1 (en) | Removing method and filter of nitrogen oxide and organic chlorine compound from fuel gas | |
| JPH0775720A (en) | Exhaust gas treatment method and catalyst for nitrogen oxide / dioxin removal | |
| JPH04200703A (en) | Filtering material for exhaust gas purification | |
| JP2019534771A (en) | Method for cryogenic gas purification and catalyst for use in the method | |
| JP4226811B2 (en) | Exhaust gas treatment method and apparatus | |
| JP3021420B2 (en) | Exhaust gas treatment catalyst, exhaust gas treatment method and treatment apparatus | |
| JPH05503036A (en) | Reduction of nitrogen oxides and carbon monoxide in waste gas | |
| JPH0947661A (en) | Process and catalyst for purifying exhaust gas | |
| JPS63171615A (en) | Catalytic filter for treating exhaust gas | |
| JP2609393B2 (en) | Exhaust gas treatment method | |
| JPH0587291B2 (en) | ||
| JP2542290B2 (en) | Exhaust gas purification method | |
| JP2000093750A (en) | Exhaust gas treatment catalyst, exhaust gas treatment process and treatment device thereof | |
| TW398990B (en) | Fume duct and process for handling fume | |
| JPH04200722A (en) | Exhaust gas purification method | |
| JP3971578B2 (en) | Exhaust gas treatment equipment | |
| JPH05337336A (en) | Exhaust gas purification method | |
| US5128302A (en) | Process for the manufacture of a catalyst for treatment of exhaust gas to reduce volatile compounds containing nitrogen and oxygen, the catalyst and method of reducing the compounds containing nitrogen and oxygen in the exhaust gas | |
| JP2007032400A (en) | Method for treating fine particles in exhaust gas from diesel engines | |
| JP2002248322A (en) | Waste gas treating method | |
| JP2002310410A (en) | Treating device for exhaust gas | |
| JP4426680B2 (en) | Method for decomposing chlorine-containing organic compounds in exhaust gas and catalyst used in the method | |
| JP3762166B2 (en) | Exhaust gas purification catalyst, production method and disposal method thereof, and exhaust gas purification method using the exhaust gas purification catalyst |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090419 Year of fee payment: 14 |
|
| R371 | Transfer withdrawn |
Free format text: JAPANESE INTERMEDIATE CODE: R371 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090419 Year of fee payment: 14 |
|
| S111 | Request for change of ownership or part of ownership |
Free format text: JAPANESE INTERMEDIATE CODE: R313115 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090419 Year of fee payment: 14 |
|
| R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090419 Year of fee payment: 14 |
|
| S531 | Written request for registration of change of domicile |
Free format text: JAPANESE INTERMEDIATE CODE: R313531 |
|
| S533 | Written request for registration of change of name |
Free format text: JAPANESE INTERMEDIATE CODE: R313533 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090419 Year of fee payment: 14 |
|
| R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090419 Year of fee payment: 14 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100419 Year of fee payment: 15 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110419 Year of fee payment: 16 |
|
| EXPY | Cancellation because of completion of term | ||
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110419 Year of fee payment: 16 |