JPH045803B2 - - Google Patents
Info
- Publication number
- JPH045803B2 JPH045803B2 JP60158368A JP15836885A JPH045803B2 JP H045803 B2 JPH045803 B2 JP H045803B2 JP 60158368 A JP60158368 A JP 60158368A JP 15836885 A JP15836885 A JP 15836885A JP H045803 B2 JPH045803 B2 JP H045803B2
- Authority
- JP
- Japan
- Prior art keywords
- inlet side
- filter
- cell
- blind plug
- gas inlet
- 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.)
- Expired - Lifetime
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
- F01N3/24—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus
- F01N3/28—Construction of catalytic reactors
- F01N3/2803—Construction of catalytic reactors characterised by structure, by material or by manufacturing of catalyst support
- F01N3/2825—Ceramics
- F01N3/2828—Ceramic multi-channel monoliths, e.g. honeycombs
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
- F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
- F01N3/022—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters characterised by specially adapted filtering structure, e.g. honeycomb, mesh or fibrous
- F01N3/0222—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters characterised by specially adapted filtering structure, e.g. honeycomb, mesh or fibrous the structure being monolithic, e.g. honeycombs
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
- F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
- F01N3/033—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters in combination with other devices
- F01N3/035—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters in combination with other devices with catalytic reactors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
- F01N2250/00—Combinations of different methods of purification
- F01N2250/02—Combinations of different methods of purification filtering and catalytic conversion
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
- F01N2510/00—Surface coverings
- F01N2510/06—Surface coverings for exhaust purification, e.g. catalytic reaction
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
- Processes For Solid Components From Exhaust (AREA)
Description
［産業上の利用分野］
この発明は、デイーゼルエンジン等の内燃機関
から排出される排気中のパテイキユレートを排気
系に設けたトラツプ材に捕集し、燃焼除去するシ
ステムにおけるパテイキユレート除去用触媒フイ
ルタに関する。
［従来の技術］
デイーゼルエンジン等から排出されるパテイキ
ユレートを浄化するシステムとして排気系に捕集
用フイルタを設け捕集されたパテイキユレートを
電気ヒーター、オイルバーナーもしくは触媒等を
用いて燃焼させることが提案されている（特開昭
58−28504号、特開昭58−202324号および特開昭
59−93916号参照）。パテイキユレートを捕集する
フイルタは、ガス入口側セルを１個おきに盲栓で
塞ぎ、ガス出口側では入口側で盲栓をしないセル
については盲栓で塞ぎ、入口側で盲栓をしたセル
については開けてある。このようなフイルタはハ
ニカム型フイルタと呼ばれ、特開昭58−185919号
に開示されている。その他三次元網目構造を有す
るセラミツクフイルタ、ステイール・ウール、ワ
イヤー・メツシユ等がある。これらのフイルタの
中で、ハニカム型フイルタは、前記のように両端
が交互に盲栓がしてあつて、セル壁にガスが通過
する数μｍ〜数10μｍのポアが開いているだけで
あるので、パテイキユレートの捕集率は他のフイ
ルタの捕集率より高い。また触媒フイルタとして
は、上記パテイキユレート捕集フイルタを、バナ
ジン酸銀、銅、クロム、モリブデン、ロジウム等
の金属で触媒化したフイルタがある（特開昭58−
84042号、特開昭58−109139号および特開昭58−
143840号参照）。
［発明が解決しようとする課題］
前記のようにハニカム型フイルタは、ガスがセ
ル壁に設けてある数μｍ〜数10μｍのポアを通じ
て流れるため、パテイキユレート捕集率が高い。
しかしながら、捕集したパテイキユレートを電気
ヒーターやオイルバーナー等で燃焼しようとして
もフイルタの前側に捕集されたパテイキユレート
のみが燃焼し、セルの奥に捕集されたパテイキユ
レートまでは燃焼しない。すなわち、ハニカム型
フイルタは、パテイキユレートの燃焼伝播性が悪
い。
［課題を解決するための手段］
この発明は、上記従来技術の問題点を解決し、
燃焼伝播特性にすぐれたパテイキユレート除去用
触媒フイルタを提供すべくなされたものである。
しかして、この発明のパテイキユレート除去用触
媒フイルタは、ガス入口側セルを１個おきに盲栓
で塞ぎ、ガス出口側では、入口側で盲栓をしない
セルについては盲栓で塞ぎ、入口側で盲栓をした
セルについては開けてあるハニカム型フイルタに
おいて、ガス入口側において盲栓をしてないセル
壁表面全面にアルミナのコーテイング層を形成
し、さらに上記アルミナコーテイング層の表面全
面に銅、銀、セリウム、ニツケル、コバルト、ス
トロンチウムおよびバナジウムから選ばれた少く
とも１種の金属を担持させるとともに、セルのガ
ス入口側のアルミナコーテイング層の金属表面の
前面にパラジウム、ロジウムおよびイリジウムか
ら選ばれた少くとも１種の触媒金属を担持させて
なるものである。この発明のパテイキユレート除
去用触媒フイルタにおいては、図に示すように、
セラミツクモノリス担体１のガス入口側セル２
（ガスは矢印の方向に流れる）を１個おきに盲栓
３で塞ぎ、ガス入口側で盲栓をしないセル２ａに
ついては、盲栓３ａで塞ぎ、ガス入口側で盲栓を
したセル２ｂについては出口側で開けてあるハニ
カム型フイルタにおいて、ガス入口側において盲
栓をしないセル２ａの壁４の表面全面にアルミナ
のコーテイング層５を形成させてある。さらに、
上記アルミナコーテイング層５の表面全体、すな
わち図の６および７に示す位置のアルミナコーテ
イング層表面に、銅、銀、セリウム、ニツケル、
コバルト、ストロンチウムおよびバナジウムエか
ら選ばれた少くとも１種の金属を担持させるとと
もに、セルのガス入口側のアルミナコーテイング
層の金属表面の前面、すなわち図の７に示す位置
のアルミナコーテイング層の金属表面部分に、パ
ラジウム、ロジウムおよびイリジウムから選ばれ
た少くとも１種の触媒金属を担持させてある。
［作用］
この発明のパテイキユレート除去用触媒フイル
タは、ハニカム型フイルタのガス入口側に、触媒
活性の高いパラジウム、ロジウムおよびイリジウ
ムの少くとも１種を担持してあるため、パテイキ
ユレートの着火性が良好で、しかもフイルタ前面
に均一に着火する。またフイルタのアルミナコー
テイング層表面全体に銅、銀、セリウム、ニツケ
ル、コバルト、ストロンチウムおよびバナジウム
の少なくとも１種を担持してあるため、フイルタ
前面で着火、燃焼するパテイキユレートが、フイ
ルタ後方にまで燃焼伝播し、燃焼伝播性が向上す
る。
［実施例］
実施例 １〜８
ハニカム型フイルタを吸水処理し、活性アルミ
ナを含むスラリーを、ガス入口側において盲栓を
してないセルの壁表面全面にコート後、250℃で
１時間乾燥し、700℃で１時間焼成した。つぎに、
このサンプルを硝酸銅溶液中に浸し、アルミナコ
ート層表面全体に、銅を担持後、乾燥し、500℃
で１時間焼成した。さらにこのサンプルのセルの
ガス入口側のアルミナコーテイング層の金属表面
の前面のみをPdCl2水溶液を用いてPdを担持した
（実施例１）。また、第１表に示すようなパラジウ
ム、ロジウムおよびイリジウムから選ばれた白金
族元素、および銅、銀またはセリウム、ニツケ
ル、コバルト、ストロンチウムおよびバナジウム
から選ばれた卑金属の元素を用いた以外は実施例
１と同じ方法で、実施例２〜８のサンプルを調製
した。
[Industrial Field of Application] The present invention relates to a catalytic filter for removing particulate matter in a system in which particulate matter in exhaust gas discharged from an internal combustion engine such as a diesel engine is collected in a trap material provided in an exhaust system and burned and removed. [Prior Art] As a system for purifying particulate matter discharged from diesel engines, etc., it has been proposed to provide a collection filter in the exhaust system and burn the collected particulate matter using an electric heater, oil burner, catalyst, etc. (Tokukai Akira)
No. 58-28504, JP-A-58-202324 and JP-A-Sho
59-93916). For the filter that collects particulate, every other cell on the gas inlet side is plugged with a blind plug, and on the gas outlet side, cells that are not plugged on the inlet side are plugged with a blind plug, and cells that are plugged on the inlet side are plugged with a blind plug. is open. Such a filter is called a honeycomb type filter and is disclosed in Japanese Patent Application Laid-open No. 185919/1983. Other types include ceramic filters with three-dimensional mesh structures, staple wool, and wire mesh. Among these filters, honeycomb filters have blind plugs alternately on both ends as described above, and only have pores of several micrometers to several tens of micrometers open in the cell walls through which gas passes. , the collection rate of particulate is higher than that of other filters. In addition, as a catalyst filter, there is a filter in which the above-mentioned particulate collection filter is catalyzed with metals such as silver vanadate, copper, chromium, molybdenum, and rhodium (Japanese Patent Application Laid-Open No. 1983-1999-1).
No. 84042, JP-A-58-109139 and JP-A-58-
(See No. 143840). [Problems to be Solved by the Invention] As described above, the honeycomb type filter has a high particulate matter collection rate because gas flows through the pores of several μm to several tens of μm provided in the cell walls.
However, even if an attempt is made to combust the collected particulate with an electric heater, oil burner, etc., only the particulate that is collected on the front side of the filter will be burned, and the particulate that is collected in the back of the cell will not be combusted. That is, the honeycomb type filter has poor combustion propagation properties of particulate. [Means for Solving the Problems] The present invention solves the problems of the above-mentioned prior art,
This invention was made in order to provide a catalytic filter for removing particulate matter that has excellent combustion propagation characteristics.
Therefore, in the catalyst filter for removing particulate matter of the present invention, every other cell on the gas inlet side is plugged with a blind plug, and on the gas outlet side, cells that are not plugged on the inlet side are plugged with a blind plug, and on the inlet side, cells are plugged with blind plugs. For cells with blind plugs, in the open honeycomb filter, an alumina coating layer is formed on the entire surface of the unplugged cell wall on the gas inlet side, and copper and silver are further coated on the entire surface of the alumina coating layer. , cerium, nickel, cobalt, strontium, and vanadium, and at least one metal selected from palladium, rhodium, and iridium is supported on the metal surface of the alumina coating layer on the gas inlet side of the cell. Both of them support one type of catalytic metal. In the catalytic filter for removing particulate matter of this invention, as shown in the figure,
Gas inlet side cell 2 of ceramic monolith carrier 1
(Gas flows in the direction of the arrow) Every other cell is plugged with a blind plug 3. For cell 2a, which is not plugged on the gas inlet side, for cell 2b, which is plugged with a blind plug 3a and with a blind plug on the gas inlet side. In the honeycomb type filter which is open on the outlet side, an alumina coating layer 5 is formed on the entire surface of the wall 4 of the cell 2a which is not plugged on the gas inlet side. moreover,
Copper, silver, cerium, nickel,
At least one metal selected from cobalt, strontium, and vanadium is supported, and the metal surface of the alumina coating layer is located in front of the metal surface of the alumina coating layer on the gas inlet side of the cell, that is, at the position shown in 7 in the figure. At least one catalyst metal selected from palladium, rhodium and iridium is supported on the part. [Function] The catalytic filter for removing particulate ylate of the present invention has good ignitability of particulate ylate because at least one of palladium, rhodium and iridium with high catalytic activity is supported on the gas inlet side of the honeycomb filter. , and evenly ignites the front of the filter. In addition, since the entire surface of the alumina coating layer of the filter carries at least one of copper, silver, cerium, nickel, cobalt, strontium, and vanadium, the particulate ylate that ignites and burns at the front of the filter will not propagate to the rear of the filter. , combustion propagation is improved. [Example] Examples 1 to 8 A honeycomb filter was treated with water absorption, and a slurry containing activated alumina was coated on the entire wall surface of the cell without a blind plug on the gas inlet side, and then dried at 250°C for 1 hour. , and baked at 700°C for 1 hour. next,
This sample was immersed in a copper nitrate solution to support copper on the entire surface of the alumina coating layer, then dried at 500°C.
Baked for 1 hour. Further, only the front surface of the metal surface of the alumina coating layer on the gas inlet side of the cell of this sample was supported with Pd using a PdCl 2 aqueous solution (Example 1). In addition, the Examples are as shown in Table 1, except that a platinum group element selected from palladium, rhodium, and iridium, and a base metal element selected from copper, silver, or cerium, nickel, cobalt, strontium, and vanadium are used. Samples of Examples 2-8 were prepared in the same manner as in Example 1.
【表】【table】
【表】
以上のようにして得られた触媒フイルタの夫々
について、パテイキユレートの捕集率、着火温度
および燃焼率を測定し、その結果を第２表に示し
た。なお、上記実施例１〜８で用いた以外の本発
明における白金族元素と銅、銀または卑金属元素
とを組合せて用いた場合も、第２表に示す結果と
同様の結果を示した。
比較例 １
ハニカム型フイルタの基材（アルミナコーテイ
ング層なし、銅、銀、セリウム、ニツケル、コバ
ルト、ストロンチウムまたはバナジウムなし、触
媒金属なし）について、実施例１と同様にして、
パテイキユレートの捕集率、着火温度および燃焼
率を測定し、その結果を第２表に示した。
比較例 ２
ハニカム型フイルタを吸水処理し、活性アルミ
ナを含むスラリーを、ガス入口側において盲栓を
してないセルの壁表面全面にコート後、250℃で
乾燥し、700℃で１時間焼成した。
このようにして得られたサンプルについて、実
施例１と同様にして、パテイキユレートの捕集
率、着火温度および燃焼率を測定し、その結果を
第２表に示した。
比較例 ３
ハニカム型フイルタを、比較例２と同様の方法
でアルミナコーテイングおよび焼成後、PdCl2水
溶液を用いて、ガス入口側のアルミナコーテイン
グ層の金属表面の前面にPdを担持した。Pdの担
持量は１ｇ／−触媒であつた。このサンプルに
ついて実施例１と同様にして、パテイキユレート
の捕集率、着火温度および燃焼率を測定し、その
結果を第２表に示した。[Table] The particulate collection rate, ignition temperature, and combustion rate were measured for each of the catalyst filters obtained as described above, and the results are shown in Table 2. In addition, when the platinum group elements of the present invention other than those used in Examples 1 to 8 were used in combination with copper, silver, or base metal elements, similar results to those shown in Table 2 were obtained. Comparative Example 1 A honeycomb filter substrate (no alumina coating layer, no copper, silver, cerium, nickel, cobalt, strontium or vanadium, no catalytic metal) was prepared in the same manner as in Example 1,
The collection rate, ignition temperature, and combustion rate of the patty ylate were measured, and the results are shown in Table 2. Comparative Example 2 A honeycomb filter was treated with water absorption, and a slurry containing activated alumina was coated on the entire wall surface of the cell without a blind plug on the gas inlet side, then dried at 250°C and fired at 700°C for 1 hour. . Regarding the sample thus obtained, the particulate collection rate, ignition temperature, and combustion rate were measured in the same manner as in Example 1, and the results are shown in Table 2. Comparative Example 3 A honeycomb filter was coated with alumina and fired in the same manner as in Comparative Example 2, and then Pd was supported on the front surface of the metal surface of the alumina coating layer on the gas inlet side using an aqueous PdCl 2 solution. The amount of Pd supported was 1 g/-catalyst. Regarding this sample, the particulate collection rate, ignition temperature, and combustion rate were measured in the same manner as in Example 1, and the results are shown in Table 2.
【表】
［発明の効果］
第２表に示した実施例と比較例の結果から明ら
かのように、パラジウム、ロジウム、およびイリ
ジウムから選ばれた少なくとも１種の触媒金属を
フイルタ前面のアルミナコーテイング層の金属表
面に、および銅、銀、セリウム、ニツケル、コバ
ルト、ストロンチウムおよびバナジウムから選ば
れた少くとも１種の金属をアルミナコーテイング
層の表面全面に担持したこの発明の触媒フイルタ
は、比較例のフイルタにくらべて、燃焼伝播性に
おいてすぐれている。例えば実施例１と比較例３
とを比較すると、前者は後者に対してパテイキユ
レート着火温度で約50℃向上し、パテイキユレー
ト燃焼率で約40％向上する。[Table] [Effects of the Invention] As is clear from the results of the Examples and Comparative Examples shown in Table 2, at least one catalyst metal selected from palladium, rhodium, and iridium was added to the alumina coating layer on the front surface of the filter. The catalyst filter of the present invention has at least one metal selected from copper, silver, cerium, nickel, cobalt, strontium and vanadium supported on the entire surface of the alumina coating layer. It has superior combustion propagation properties. For example, Example 1 and Comparative Example 3
Compared to the latter, the former has an approximately 50°C improvement in the particulate ignition temperature and approximately 40% improvement in the particulate combustion rate.
図はこの発明のハニカム型パテイキユレート除
去用触媒フイルタを略示的に示す断面的説明図で
ある。
１……セラミツクスモノリス担体、２……ガス
入口側セル、２ａ……ガス入口側で盲栓をしない
セル、２ｂ……ガス入口側で盲栓をしたセル、３
および３ａ……盲栓、４……セル壁、５……アル
ミナのコーテイング層、６……銅、銀、セリウ
ム、ニツケル、コバルト、ストロンチウムまたは
バナジウムのアルミナ表面における担持部の位
置、７……パラジウム、ロジウムまたはイリジウ
ム、および銅、銀、セリウム、ニツケル、コバル
ト、ストロンチウムまたはバナジウムのアルミナ
表面における担持部の位置。
The figure is a cross-sectional explanatory view schematically showing a honeycomb type particulate matter removing catalyst filter of the present invention. 1... Ceramic monolith carrier, 2... Cell on gas inlet side, 2a... Cell without blind plug on gas inlet side, 2b... Cell with blind plug on gas inlet side, 3
and 3a...Blind plug, 4...Cell wall, 5...Alumina coating layer, 6...Position of supporting portion of copper, silver, cerium, nickel, cobalt, strontium or vanadium on the alumina surface, 7...Palladium , rhodium or iridium, and the position of supports on the alumina surface of copper, silver, cerium, nickel, cobalt, strontium or vanadium.
Claims (1)
ス出口側では入口側で盲栓をしないセルについて
は盲栓で塞ぎ、入口側で盲栓をしたセルについて
は開けてあるハニカム型フイルタにおいて、ガス
入口側において盲栓をしてないセル壁表面全面に
アルミナのコーテイング層を形成し、さらに、上
記アルミナコーテイング層の表面全面に銅、銀、
セリウム、ニツケル、コバルト、ストロンチウム
およびバナジウムから選ばれた少くとも１種の金
属を担持させるとともに、セルのガス入口側のア
ルミナコーテイング層の金属表面の前面にパラジ
ウム、ロジウムおよびイリジウムから選ばれた少
くとも１種の触媒金属を担持させてなるパテイキ
ユレート除去用触媒フイルタ。1. Close every other cell on the gas inlet side with a blind plug, and on the gas outlet side, close the cells with a blind plug on the inlet side with a blind plug, and use an open honeycomb filter for cells with a blind plug on the inlet side. In this method, an alumina coating layer is formed on the entire surface of the cell wall without a blind plug on the gas inlet side, and copper, silver,
At least one metal selected from cerium, nickel, cobalt, strontium, and vanadium is supported, and at least one metal selected from palladium, rhodium, and iridium is supported on the front surface of the metal surface of the alumina coating layer on the gas inlet side of the cell. A catalytic filter for removing particulate matter, which supports one kind of catalytic metal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60158368A JPS6220613A (en) | 1985-07-19 | 1985-07-19 | Catalyst filter for removal of particulate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60158368A JPS6220613A (en) | 1985-07-19 | 1985-07-19 | Catalyst filter for removal of particulate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6220613A JPS6220613A (en) | 1987-01-29 |
| JPH045803B2 true JPH045803B2 (en) | 1992-02-03 |
Family
ID=15670161
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60158368A Granted JPS6220613A (en) | 1985-07-19 | 1985-07-19 | Catalyst filter for removal of particulate |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6220613A (en) |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5075274A (en) * | 1989-03-15 | 1991-12-24 | Kabushiki Kaisha Riken | Exhaust gas cleaner |
| JPH0949421A (en) * | 1995-05-30 | 1997-02-18 | Sumitomo Electric Ind Ltd | Particulate trap for diesel engine |
| JP2002537965A (en) * | 1999-02-26 | 2002-11-12 | ジョンソン、マッセイ、パブリック、リミテッド、カンパニー | Monolith catalyst / filter device |
| KR20020058812A (en) * | 2000-12-30 | 2002-07-12 | 이계안 | Exhausted gas recirculation apparatus |
| ES2278332T3 (en) * | 2003-06-05 | 2007-08-01 | Ibiden Co., Ltd. | BODY WITH PANAL STRUCTURE. |
| DE102004010497A1 (en) * | 2004-03-04 | 2005-09-22 | Robert Bosch Gmbh | Filter for purifying gas mixtures containing combustible particles, especially engine exhaust gases, has a gas-contacting surface comprising a mixture of silver or copper and one or more oxygen-containing compounds |
| DE102005063183A1 (en) * | 2005-12-30 | 2007-07-05 | Robert Bosch Gmbh | Diesel particle filter e.g. soot separating filter, for motor vehicle, has porous and/or gas permeable channel walls with layers whose catalytic properties are different from each other |
| CN101374590B (en) * | 2006-10-05 | 2011-12-21 | 揖斐电株式会社 | Honeycomb structure |
| US8800268B2 (en) * | 2006-12-01 | 2014-08-12 | Basf Corporation | Zone coated filter, emission treatment systems and methods |
| JP2009219971A (en) * | 2007-03-20 | 2009-10-01 | Denso Corp | Ceramic honeycomb structure |
| JP4992773B2 (en) * | 2007-03-20 | 2012-08-08 | 株式会社デンソー | Catalyst material |
| JP2011056393A (en) * | 2009-09-09 | 2011-03-24 | Mitsubishi Motors Corp | Exhaust gas cleaning apparatus |
| JP5434762B2 (en) * | 2010-04-09 | 2014-03-05 | 株式会社デンソー | Exhaust gas purification filter |
| JP5440339B2 (en) * | 2010-04-09 | 2014-03-12 | 株式会社デンソー | Exhaust gas purification filter |
| US8858903B2 (en) * | 2013-03-15 | 2014-10-14 | Clean Diesel Technology Inc | Methods for oxidation and two-way and three-way ZPGM catalyst systems and apparatus comprising same |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57117326A (en) * | 1981-01-12 | 1982-07-21 | Toyota Motor Corp | Filter for exhaust gas of internal-combustion engine |
| JPS57194048A (en) * | 1981-05-23 | 1982-11-29 | Toyota Motor Corp | Waste gas filter |
| DE3205673A1 (en) * | 1982-02-17 | 1983-09-01 | Engelhard Kali-Chemie Autocat Gmbh, 3000 Hannover | DEVICE FOR PURIFYING THE EXHAUST GASES FROM DIESEL ENGINES, ESPECIALLY IN MOTOR VEHICLES |
| JPS5956316U (en) * | 1982-10-07 | 1984-04-12 | トヨタ自動車株式会社 | Internal combustion engine exhaust gas filter |
-
1985
- 1985-07-19 JP JP60158368A patent/JPS6220613A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6220613A (en) | 1987-01-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR950002223B1 (en) | Catalyst for purification of exhausted gas from diesel engine | |
| US5100632A (en) | Catalyzed diesel exhaust particulate filter | |
| JPH045803B2 (en) | ||
| JP3387290B2 (en) | Exhaust gas purification filter | |
| JP2863567B2 (en) | Exhaust gas purifying material and exhaust gas purifying method | |
| JP3707843B2 (en) | Diesel exhaust gas purification filter | |
| JP2002349234A (en) | Diesel exhaust gas purification filter | |
| JPH07100380A (en) | Method for producing particulate matter removal catalyst for diesel vehicle and method for removing particulate matter using the catalyst body | |
| JP4161633B2 (en) | Particulate purification catalyst | |
| KR960003793B1 (en) | Catalyst body for removing particulate matter from diesel vehicles and its manufacturing method | |
| JPH0232004B2 (en) | ||
| JPS61286513A (en) | Filter for collecting particulate and catalyst filter for collecting particulate | |
| JPH0547243B2 (en) | ||
| JPS6365927A (en) | Catalytic filter for removing particulates | |
| JP2580721B2 (en) | Filter for particulate collection | |
| JP2577757B2 (en) | Diesel exhaust gas purification catalyst | |
| JPS6351947A (en) | Catalyst filter for combustion of particulate | |
| JPH09168723A (en) | Exhaust gas filter | |
| JPS61146314A (en) | Purifying filter for collecting fine particle | |
| JPS6365926A (en) | Catalytic filter for trapping particulates | |
| JPH0422013Y2 (en) | ||
| KR100389900B1 (en) | Catalyst for the purification of diesel exhaust gas | |
| JPS61129030A (en) | Filter for collecting and purifying fine particles | |
| JPH03210008A (en) | Diesel exhaust gas processor | |
| JPH02169007A (en) | Particulate collecting filter |