JPS62294445A - Method for sealing cells of outer peripheral part of monolithic carrier - Google Patents
Method for sealing cells of outer peripheral part of monolithic carrierInfo
- Publication number
- JPS62294445A JPS62294445A JP61136212A JP13621286A JPS62294445A JP S62294445 A JPS62294445 A JP S62294445A JP 61136212 A JP61136212 A JP 61136212A JP 13621286 A JP13621286 A JP 13621286A JP S62294445 A JPS62294445 A JP S62294445A
- Authority
- JP
- Japan
- Prior art keywords
- carrier
- monolithic carrier
- monolithic
- cells
- outer peripheral
- 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
Links
- 230000002093 peripheral effect Effects 0.000 title claims abstract description 25
- 238000000034 method Methods 0.000 title claims abstract description 20
- 238000007789 sealing Methods 0.000 title abstract 2
- 239000002002 slurry Substances 0.000 claims abstract description 25
- 238000012856 packing Methods 0.000 claims description 10
- 238000011049 filling Methods 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 5
- BNGXYYYYKUGPPF-UHFFFAOYSA-M (3-methylphenyl)methyl-triphenylphosphanium;chloride Chemical compound [Cl-].CC1=CC=CC(C[P+](C=2C=CC=CC=2)(C=2C=CC=CC=2)C=2C=CC=CC=2)=C1 BNGXYYYYKUGPPF-UHFFFAOYSA-M 0.000 abstract description 3
- 239000000843 powder Substances 0.000 abstract description 3
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 239000000565 sealant Substances 0.000 abstract 1
- 239000003054 catalyst Substances 0.000 description 28
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 10
- 239000010970 precious metal Substances 0.000 description 9
- 229910000510 noble metal Inorganic materials 0.000 description 8
- 229910052697 platinum Inorganic materials 0.000 description 5
- 229910052703 rhodium Inorganic materials 0.000 description 5
- 239000010948 rhodium Substances 0.000 description 5
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 description 5
- 230000003197 catalytic effect Effects 0.000 description 4
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 2
- 229910010293 ceramic material Inorganic materials 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004898 kneading Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- QZPSXPBJTPJTSZ-UHFFFAOYSA-N aqua regia Chemical compound Cl.O[N+]([O-])=O QZPSXPBJTPJTSZ-UHFFFAOYSA-N 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 229910052878 cordierite Inorganic materials 0.000 description 1
- JSKIRARMQDRGJZ-UHFFFAOYSA-N dimagnesium dioxido-bis[(1-oxido-3-oxo-2,4,6,8,9-pentaoxa-1,3-disila-5,7-dialuminabicyclo[3.3.1]nonan-7-yl)oxy]silane Chemical compound [Mg++].[Mg++].[O-][Si]([O-])(O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2)O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2 JSKIRARMQDRGJZ-UHFFFAOYSA-N 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000003779 heat-resistant material Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- NWAHZABTSDUXMJ-UHFFFAOYSA-N platinum(2+);dinitrate Chemical compound [Pt+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O NWAHZABTSDUXMJ-UHFFFAOYSA-N 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- SONJTKJMTWTJCT-UHFFFAOYSA-K rhodium(iii) chloride Chemical compound [Cl-].[Cl-].[Cl-].[Rh+3] SONJTKJMTWTJCT-UHFFFAOYSA-K 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Abstract
Description
【発明の詳細な説明】
３、発明の詳細な説明
（産業上の利用分野〕
本発明は、外周部のセルを目詰めした自動車用の排気ガ
ス浄化用モノリス触媒の、外周部セルの目詰め方法に関
する。Detailed Description of the Invention 3. Detailed Description of the Invention (Industrial Field of Application) The present invention relates to a method for packing the outer peripheral cells of a monolithic catalyst for purifying exhaust gas for automobiles in which the outer peripheral cells are plugged. Regarding the method.
モノリス触媒をコンバーター容器に保持する方法として
、触媒端面外周部をリテーナにより固定するものがある
。このようなコンバーターでは、リテーナに接する触媒
のセル内に流れ込む排気ガスは非常に少ない。したがっ
て、触媒成分（パラジウム、ロジウム、白金などの貴金
属）を触媒全体に均一に担持したのでは、貴金属の非常
な無駄である。As a method of holding a monolithic catalyst in a converter container, there is a method of fixing the outer periphery of the catalyst end face with a retainer. In such a converter, very little exhaust gas flows into the cells of the catalyst in contact with the retainer. Therefore, if the catalyst components (precious metals such as palladium, rhodium, platinum, etc.) are uniformly supported on the entire catalyst, it would be a great waste of precious metals.
そこでこのリテーナに接する部分のセル内には、触媒成
分（貴金属）を担持しないために、外周部付近の流路を
閉塞し、この部分に貴金属を担持しないという技術′が
い（つか提案されている（たとえば、特開昭５１−８７
４８２号公報、特開昭５８−１１２０５４号公報）。Therefore, in order to prevent the catalytic component (noble metal) from being supported within the cells in the area that contacts the retainer, there is a technique (sometimes proposed (For example, JP-A-51-87
482, JP-A-58-112054).
このリテーナに接する外周部のセル内を目詰めして、こ
の部分に触媒成分を担持しない触媒の一般的な製造法と
しては、従来、モノリス担体の一方の端面の外周部のセ
ル内をアルミナスラリーでふでなどにより目詰めし、つ
ぎに他の端面を同様に目詰めしていた。そして、モノリ
ス担体を乾燥、焼成し、通常のアルミナのウォッシュコ
ートを行ない、次に貴金属を担持する。このようにして
リテーナに接する部分を熱安定な物質で目詰めし、触媒
成分（貴金属）を有効に担持したモノリス触媒を製造す
る技術が提案されている。Conventionally, the inside of the cells on the outer periphery in contact with this retainer is packed, and the inside of the cells on the outer periphery of one end face of the monolithic carrier is packed with alumina slurry. The holes were closed using defining, etc., and then the other end surfaces were closed in the same manner. The monolithic support is then dried, fired, and subjected to a conventional alumina washcoat and then loaded with precious metals. A technique has been proposed in which the portion in contact with the retainer is packed with a thermally stable substance to produce a monolithic catalyst that effectively supports a catalyst component (noble metal).
触媒の外周部を目詰めする場合、セル内を一方の端から
他方の端まですべてアルミナ等の耐熱性材料で充填する
と、コンバーター内の温度変化により、触媒担体に熱衝
撃によるクラックが発生しやすくなる。したがって両端
面を２１ｍないし２０ｍ１目詰めし、中央部は中空にす
る方法がこのましい。When packing the outer periphery of the catalyst, if the inside of the cell is filled from one end to the other with a heat-resistant material such as alumina, cracks are likely to occur in the catalyst carrier due to thermal shock due to temperature changes inside the converter. Become. Therefore, it is preferable to close both end faces by 21 m to 20 m and leave the center hollow.
モノリス担体の開口部の端面の一方の外周部にアルミナ
等の耐熱性スラリーを充填して目詰めをし、つぎに残り
の一方を同様に目詰めずろ場合、第８図に示すように、
両端面の目詰め位置がずれてしまい、片側の端面だげ目
詰めされた部分ができる。これは、セルが約４００セル
／平方インチの割合で密集して設けられているため、ふ
で等でスラリーを塗布した場合モノリス担体の片方の端
面で目詰めしても他端で目詰めされるとは限らないから
生じる現象である。If the outer periphery of one of the end faces of the opening of the monolithic carrier is filled with a heat-resistant slurry such as alumina and then the remaining end is filled in the same way, as shown in Fig. 8,
The filling positions on both end faces are shifted, resulting in a part where only one end face is filled. This is because the cells are densely arranged at a rate of about 400 cells/in2, so when applying slurry with a fude etc., even if one end of the monolith carrier is packed, the other end is not packed. This is a phenomenon that occurs because it is not always the case.
この場合、触媒物質（貴金属）浸漬担持時に片側のみ目
詰めしまたセル内に他端間ｌ］部から貴金属溶液がしみ
込み、貴金属が担持されてしまう。このように片側目詰
めされ排気ガスの流れないセル中に！１持された貴金属
はまったくの無駄である。In this case, when the catalyst material (noble metal) is immersed and supported, only one side is packed, and the noble metal solution seeps into the cell from the other end (1), resulting in the noble metal being supported. In this way, the cells are closed on one side and no exhaust gas flows through them! The precious metals kept are a complete waste.
本発明は、目詰めをずべき外周部セルには、正しくセル
両端を目詰めすることができるモノリス担体の外周部セ
ルの目詰め方法を堤供することを目的とする。An object of the present invention is to provide a method for packing the outer peripheral cells of a monolithic carrier, which can correctly pack both ends of the outer peripheral cells that should be unpacked.
上記目的を達成するだめの本発明に係るモノリス担体の
外周部セルの目詰め方法は、モノリス担体の外周部のセ
ル内に耐熱性物質を充填し該外周部のセルを目詰めする
方法であって、目詰め材料を含んだスラリー中に、モノ
リス担体を横置きにして前記外周部のセルが接触する程
度に浸漬し、この状態でモノリス担体を回転さ−ｌる方
法から成る。A method of filling the outer peripheral cells of a monolithic carrier according to the present invention to achieve the above object is a method of filling the outer peripheral cells of the monolithic carrier with a heat-resistant substance and filling the outer peripheral cells. Then, the monolithic carrier is placed horizontally and immersed in a slurry containing a plugging material to the extent that the cells on the outer periphery are in contact with each other, and the monolithic carrier is rotated in this state.
〔１乍 用 〕
−り、記の、モノリス担体を横置きにして外周部を浸漬
させる目詰め方法においては、モノリス担体の外周部が
、両端とも一定量さにスラリー中に浸漬されるとき、任
意の外周部セルがその一端を浸漬されればほとんど確実
に他端も浸漬されるので、目詰めされるセルはその両端
部を精度よく目詰めされる。[For 1] - In the plugging method described above, in which the monolithic carrier is placed horizontally and the outer peripheral part is immersed, when the outer peripheral part of the monolithic carrier is immersed in the slurry by a constant amount on both ends, If any peripheral cell is immersed at one end, the other end will almost certainly be immersed, so both ends of the cell to be packed are packed with high precision.
モノリス担体の両端外周を同じ深さでスラリー中に浸漬
するには、モノリス担体の軸芯と直角の断面が円形であ
る場合は、モノリス担体の重量がかかったときに一定量
沈むトレー−トにモノリス担体をのせて転動させたり、
モノリス担体を軸芯で支えて回転させてもよい。また、
モノリス担体の軸芯と直角の断面が楕円形である場合は
、モノリス担体の重量がかかったときに一定量沈むトレ
ー上にモノリス担体をのせて転動させることにより、モ
ノリス担体の外周から一定幅内にあるセルを容易にかつ
確実に目詰めすることができる。In order to immerse the outer periphery of both ends of the monolith carrier in the slurry to the same depth, if the cross section perpendicular to the axis of the monolith carrier is circular, it is necessary to immerse the outer circumference of both ends of the monolith carrier in the slurry so that the tray sinks a certain amount when the weight of the monolith carrier is applied. Place a monolith carrier on it and roll it,
The monolithic carrier may be supported by an axis and rotated. Also,
If the cross-section perpendicular to the axis of the monolithic carrier is elliptical, the monolithic carrier can be placed on a tray that sinks a certain amount when the weight of the monolithic carrier is applied, and the monolithic carrier is rolled so that the monolithic carrier has a fixed width from the outer periphery. The cells inside can be easily and reliably filled.
以下に、本発明に係るモノリス担体の外周部セルの目詰
め方法の実施例を、図面を参照して説明する。DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the method for packing outer cells of a monolithic carrier according to the present invention will be described below with reference to the drawings.
実施例１
第１図において、市販の直径１０７龍、長さ１２２ｙｓ
ｖｓ、 ４００セル／ｄのコージェライト質モノリス
担体１を用意し、そのコンバーター容器２に収納した際
リテーナ３にあたる外周部４のセル５にセラミック材料
６を目詰めすることにした（第４図および第５図参照）
。Example 1 In Figure 1, a commercially available diameter 107ys, length 122ys
vs. We prepared a cordierite monolithic carrier 1 with a capacity of 400 cells/d, and when it was stored in the converter container 2, we decided to fill the cells 5 on the outer periphery 4, which corresponds to the retainer 3, with ceramic material 6 (see Fig. 4 and (See Figure 5)
.
この目詰め部はγ−アルミナ粉末、アルミナゾル′１、
硝酸アルミニウム、水を混練して得たスラリー７を、第
１図に示すような容器８に入れ、トレー９の高さをモノ
リス担体１が３１浸漬するように調製し、モノリス担体
１を第１図のように浸漬し、トレー９の上で転動させる
ことにより、外周部４に幅３Ｎ深さ３Ｒで均一な目詰め
をして、第２図に示す目詰めしたモノリス担体１を得た
。モノリス担体１の外周部４についたスラリー７は、ぬ
、れた布できれいにふきとった。その後、１００℃で６
０分乾燥後、４００℃で６０分焼成した。This filling part consists of γ-alumina powder, alumina sol'1,
A slurry 7 obtained by kneading aluminum nitrate and water is placed in a container 8 as shown in FIG. By immersing it as shown in the figure and rolling it on a tray 9, the outer peripheral part 4 was uniformly packed with a width of 3N and a depth of 3R, thereby obtaining the packed monolithic carrier 1 shown in Fig. 2. . The slurry 7 adhering to the outer periphery 4 of the monolithic carrier 1 was wiped off with a damp cloth. After that, 6 at 100℃
After drying for 0 minutes, it was baked at 400°C for 60 minutes.
この外周部４を目詰めしたモノリス担体１に、Ｔ−アル
ミナ粉末、アルミナゾル、硝酸アルミニラム、水を混練
して得られたウォッシュコート用アルミナスラリー１０
を第３図に示すような装置１１で、セル５中に投入し、
過剰のスラリー１０は吹き払った。その後、１００℃で
６０分乾燥後、６００℃で６０分間焼成した。Alumina slurry 10 for wash coating obtained by kneading T-alumina powder, alumina sol, aluminum nitrate, and water to the monolithic carrier 1 whose outer peripheral part 4 is packed
is put into the cell 5 using a device 11 as shown in FIG.
Excess slurry 10 was blown off. Thereafter, it was dried at 100°C for 60 minutes and then baked at 600°C for 60 minutes.
モノリス担体１に触媒成分としての貴金属を担持するに
際し、モノリス担体ｌの外周壁に、貴金属が担持されな
いように、耐水性のテープをまいた。続いて、硝酸白金
および塩化ロジウムを含む溶液中に、上記モノリス担体
１を浸漬し、６０分間担持した後、３００℃で６０分間
焼成し、白金を１ｇ７個、ロジウムを０．１ ｇ ／個
含有するモノリス触媒１２ （触媒Ａ）を得た。When supporting a noble metal as a catalyst component on the monolithic carrier 1, a water-resistant tape was spread on the outer peripheral wall of the monolithic carrier 1 to prevent the noble metal from being supported. Subsequently, the monolithic carrier 1 was immersed in a solution containing platinum nitrate and rhodium chloride, supported for 60 minutes, and then baked at 300° C. for 60 minutes to form a solution containing 1 g of platinum and 0.1 g of rhodium. A monolithic catalyst 12 (catalyst A) was obtained.
これを、第４図および第５図に示すように、コンバータ
容器２に収納し、リテーナ３で固定するとモノリス触媒
コンバータが得られる。第５図において、セル５のうち
外周部４の目詰めしたセル５の部分が丁度リテーナ３で
覆われる。また、第５図において、１３はモノリス担体
１の外周を支持するワイヤネット、１４はシール材であ
る。This is housed in a converter container 2 and fixed with a retainer 3, as shown in FIGS. 4 and 5, to obtain a monolithic catalytic converter. In FIG. 5, the portion of the cell 5 where the outer circumferential portion 4 of the cell 5 is packed is exactly covered with the retainer 3. Further, in FIG. 5, 13 is a wire net that supports the outer periphery of the monolithic carrier 1, and 14 is a sealing material.
実施例２
実施例２が実施例１と異なるところは、モノリス担体Ｉ
Ａをスラリー７中に浸漬するに際し、モノリス担体ＩＡ
を軸芯で支持具１５で支持し、モノリス担体ＩＡを軸芯
を一定にしたまま軸芯まわりに回転させる点である。こ
のときはトレー９Ａは必ずしも必要とされない。実施例
２では、モノリス担体ＩＡの軸芯と直角の断面が真円形
であることが必要である。その他の構成、作用は実施例
１に準じる。Example 2 Example 2 differs from Example 1 in that monolithic carrier I
When immersing A into slurry 7, monolithic carrier IA
is supported by the supporting tool 15 at its axis, and the monolithic carrier IA is rotated around the axis while keeping the axis constant. At this time, tray 9A is not necessarily required. In Example 2, it is necessary that the cross section of the monolithic carrier IA perpendicular to the axis be perfectly circular. Other configurations and operations are the same as in Example 1.
実施例３
実施例３が実施例１と異なるところは、モノリス担体Ｉ
Ｂの軸芯と直角の断面が楕円形であることである。断面
楕円形のモノリス担体ＩＢはモノリス担体ＩＢの自重が
かかったときに沈み込むトレー９Ｂ上にのせられてその
上に転動される。断面楕円形であるにかかわらず、外周
から一定１１にあるセルの両端にスラリーが充填される
。その他の構成、作用は実施例１に準じる。Example 3 Example 3 differs from Example 1 in that monolithic carrier I
The cross section perpendicular to the axis of B is elliptical. The monolithic carrier IB having an elliptical cross section is placed on the tray 9B which sinks when the weight of the monolithic carrier IB is applied, and is rolled onto the tray 9B. Regardless of the elliptical cross-section, the slurry is filled at both ends of the cell at a constant distance 11 from the outer periphery. Other configurations and operations are the same as in Example 1.
比較例
実施例Ｉと同様なモノリス担体の、コンバーター容器に
収納した際リテーナにあたる外周部のセルに従来法によ
りアルミナを目詰めすることにした。Comparative Example It was decided to pack alumina into the cells on the outer periphery of the same monolithic carrier as in Example I, which would serve as a retainer when stored in a converter container, using a conventional method.
まず、開口部の一方の端面の外周部にふでを用いて実施
例１と同様なスラリーで、外周部より３１を目標に目詰
めした。つぎに同様に他の一方の端面の外周部を目詰め
した。First, the outer periphery of one end face of the opening was filled with the same slurry as in Example 1 using a fude, aiming at 31 from the outer periphery. Next, the outer periphery of the other end face was filled in the same manner.
このモノリス担体に実施例１と同様な方法でアルミナを
ウォッシュコートし、乾燥、焼成してアルミナ層を形成
した。This monolithic carrier was wash coated with alumina in the same manner as in Example 1, dried and fired to form an alumina layer.
モノリス担体の外壁に貴金属が担持されないように耐水
性のテープをまき、実施例１と同様な方法で白金を１ｇ
７個、ロジウムを０．１ｇ／個含有した触媒を担持させ
、触媒（触媒Ｂ）を得た。Water-resistant tape was spread on the outer wall of the monolithic carrier to prevent precious metals from being supported, and 1 g of platinum was added in the same manner as in Example 1.
A catalyst (catalyst B) was obtained by supporting a catalyst containing 7 pieces of rhodium and 0.1 g/piece of rhodium.
試験例
実施例１ないし実施例３で得られた触媒Ａおよび比較例
１で得られた触媒Ｂの、目詰めされた部分のみをけずり
取り、粉砕し王水で触媒成分を溶解抽出した。つぎに塩
酸により脱硝し、日立製原子吸光光度ｈ ｔ （１７０
−３０型）により白金およびロジウムを分析し、目詰め
部分の貴金属量を求めた。Test Examples Only the packed portions of catalyst A obtained in Examples 1 to 3 and catalyst B obtained in Comparative Example 1 were scraped off, crushed, and the catalyst components were dissolved and extracted with aqua regia. Next, denitrification was performed using hydrochloric acid, and the atomic absorption spectrometer h t (170
-30 type) was used to analyze platinum and rhodium, and the amount of precious metals in the plugged portion was determined.
この結果を表１に示す。The results are shown in Table 1.
表 ま
ただし、白金量（％）は、（目詰めしたセル内の貴金属
担持量）÷（触媒全体の担持量）Ｘ１００で計算した。Table Also, the amount of platinum (%) was calculated by (amount of noble metal supported in the packed cells) ÷ (amount of supported overall catalyst) x 100.
表１の結果からあきらかなように本発明の方法により、
外周部を目詰めした触媒は、セルの両端を精度よく目詰
めできるため、目詰めしたセル内に貴金属の担持液が侵
入しにクク、貴金属を排気ガスの流れるセル中に、より
有効に担持できる。As is clear from the results in Table 1, by the method of the present invention,
With a catalyst whose outer periphery is packed, both ends of the cell can be packed with precision, allowing the precious metal carrier liquid to penetrate into the packed cells, allowing precious metals to be more effectively supported in the cells through which exhaust gas flows. can.
以上かられかるように、本発明に係るモノリス担体の外
周部セルの目詰め方法によるときは、つぎの効果が得ら
れる。As can be seen from the above, the following effects can be obtained by using the method of packing the outer peripheral cells of a monolithic carrier according to the present invention.
イ、モノリス担体を軸芯を水平にして、すなわち横置き
にして回転させるので、スラリー中に浸漬したセルは、
必ず両端をスラリー中に浸漬され、両端を精度よく目詰
めできる。すなわち、一端のみが目詰めされるようなセ
ルの数は、従来の目詰め方法によるものにくらべて激減
する。B. Since the monolith carrier is rotated with its axis horizontal, that is, placed horizontally, the cells immersed in the slurry are
Both ends are always immersed in the slurry, allowing for precise filling of both ends. That is, the number of cells whose only one end is packed is drastically reduced compared to the conventional packing method.
口、したがって、一端のみが目詰めされたセルを有する
モノリス担体に触媒成分を担持させるときに生じるよう
な、触媒成分の無駄な担持は生じにくい。Therefore, wasteful loading of the catalyst component is less likely to occur, as occurs when the catalyst component is supported on a monolithic carrier having cells that are packed at only one end.
ハ、また、スラリー中にモノリス担体外周部を浸漬して
モノリス担体を回転させるので、外周から正しく一定中
の範囲にあるセルを目詰めできる。C. Also, since the outer periphery of the monolithic carrier is immersed in the slurry and the monolithic carrier is rotated, cells within a certain range from the outer periphery can be filled correctly.
これによって、モノリス触媒コンバータとして組み立っ
たときに、容易にリテーナで覆われる部分と目詰めセル
とを対応させることができ、Ｕトスガス浄化性能を向上
できる。Thereby, when assembled as a monolithic catalytic converter, the portion covered by the retainer and the plugging cells can be easily matched, and the U-toss gas purification performance can be improved.
二、また、モノリス担体の回転を転勤とした場合には１
．モノリス担体の軸芯と直角の断面が楕円形のモノリス
担体の外周部セルの目詰めにも、本発明を適用できる。2. Also, if rotation of the monolith carrier is considered as transfer, 1
．． The present invention can also be applied to packing the outer peripheral cells of a monolithic carrier whose cross section perpendicular to the axis of the monolithic carrier is elliptical.
第１図は本発明に係るモノリス担体の外周部セルの目詰
め方法によって目詰めしている本発明の実施例１の斜視
図、
第２図は第１図に示す方法によって目詰めされたモノリ
ス担体の軸芯を含む断面に沿う断面図、第３図は第２図
の外周部セルを目詰めされたモノリス担体にアルミナス
ラリーを投入してウォッシュコートをしている状態の断
面図、
第４図は第３図に示すウォシュコートを施しさらにウォ
ッシュコートによって形成されたアルミナコート層に貴
金属等の触媒成分を担持して得たモノリス触媒Ａを組み
付けたモノリス触媒コンバータの断面図、
第５図は第４図のうちモノリス触媒全体と目詰めされた
外周部セルとの位置関係を示すモノリス触媒の平面図、
第６図は本発明の実施例２に係るモノリス担体の目詰め
時の斜視図、
第７図は本発明の実施例３に係るモノリス担体の目詰め
時の斜視図、
第８図は従来方法によって外周部セルを目詰めしたモノ
リス担体の軸芯を含む断面に沿う断面図、である。
１、Ａ、ＩＡ、ＩＢ・・・・・・・・・モノリス担体３
・・・・・・・・・リテーナ
４・・・・・・・・・モノリス担体の外周部５・・・・
・・・・・セル
６・・・・・・・・・セラミック材料
７・・・・・・・・・スラリー
８・・・・・・・・・容器FIG. 1 is a perspective view of Example 1 of the present invention, which is packed by the method of packing the outer peripheral cells of a monolith carrier according to the present invention, and FIG. 2 is a perspective view of the monolith carrier packed by the method shown in FIG. 1. Fig. 3 is a sectional view taken along a cross section including the axis of the carrier; Fig. 3 is a sectional view of the monolithic carrier packed with cells in the outer periphery of Fig. 2, in which alumina slurry is poured and wash coated; The figure is a cross-sectional view of a monolithic catalytic converter which has been subjected to the washcoat shown in Fig. 3 and is assembled with a monolithic catalyst A obtained by supporting catalyst components such as precious metals on the alumina coat layer formed by the washcoat. FIG. 4 is a plan view of the monolith catalyst showing the positional relationship between the entire monolith catalyst and the packed outer peripheral cells; FIG. 6 is a perspective view of the monolith carrier according to Example 2 of the present invention when the monolith carrier is packed; FIG. 7 is a perspective view of a monolithic carrier according to Example 3 of the present invention when packed, and FIG. 8 is a sectional view taken along a cross section including the axis of a monolithic carrier whose outer peripheral cells are packed by a conventional method. be. 1, A, IA, IB... Monolith carrier 3
......Retainer 4...Outer peripheral part 5 of monolith carrier...
...Cell 6 ... Ceramic material 7 ... Slurry 8 ... Container
Claims (1)
填し該外周部のセルを目詰めする方法であって、目詰め
材料を含んだスラリー中に、モノリス担体を横置きにし
て前記外周部のセルが接触する程度に浸漬し、この状態
でモノリス担体を回転させることを特徴とするモノリス
担体の外周部セルの目詰め方法。(1) A method of filling cells on the outer periphery of a monolithic carrier with a heat-resistant substance and clogging the cells on the outer periphery, in which the monolithic carrier is placed horizontally in a slurry containing a packing material. A method for packing outer peripheral cells of a monolith carrier, characterized by immersing the monolith carrier to such an extent that the outer peripheral cells are in contact with each other, and rotating the monolith carrier in this state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61136212A JPS62294445A (en) | 1986-06-13 | 1986-06-13 | Method for sealing cells of outer peripheral part of monolithic carrier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61136212A JPS62294445A (en) | 1986-06-13 | 1986-06-13 | Method for sealing cells of outer peripheral part of monolithic carrier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62294445A true JPS62294445A (en) | 1987-12-21 |
Family
ID=15169931
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61136212A Pending JPS62294445A (en) | 1986-06-13 | 1986-06-13 | Method for sealing cells of outer peripheral part of monolithic carrier |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62294445A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001040859A1 (en) * | 1998-11-12 | 2001-06-07 | Ppg Industries Ohio, Inc. | Rolled edge seal for electrooptic device |
| WO2009014025A1 (en) * | 2007-07-26 | 2009-01-29 | Nippon Shokubai Co., Ltd. | Exhaust gas processing device |
| DE102021208131B3 (en) | 2021-07-28 | 2022-12-01 | Vitesco Technologies GmbH | Process for improving the coating of a honeycomb body with a catalytically active coating |
-
1986
- 1986-06-13 JP JP61136212A patent/JPS62294445A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001040859A1 (en) * | 1998-11-12 | 2001-06-07 | Ppg Industries Ohio, Inc. | Rolled edge seal for electrooptic device |
| WO2009014025A1 (en) * | 2007-07-26 | 2009-01-29 | Nippon Shokubai Co., Ltd. | Exhaust gas processing device |
| JPWO2009014025A1 (en) * | 2007-07-26 | 2010-09-30 | 株式会社日本触媒 | Exhaust gas treatment equipment |
| JP5484905B2 (en) * | 2007-07-26 | 2014-05-07 | 株式会社日本触媒 | Exhaust gas treatment equipment |
| DE102021208131B3 (en) | 2021-07-28 | 2022-12-01 | Vitesco Technologies GmbH | Process for improving the coating of a honeycomb body with a catalytically active coating |
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