JPH08323214A - Catalyst member - Google Patents
Catalyst memberInfo
- Publication number
- JPH08323214A JPH08323214A JP7130262A JP13026295A JPH08323214A JP H08323214 A JPH08323214 A JP H08323214A JP 7130262 A JP7130262 A JP 7130262A JP 13026295 A JP13026295 A JP 13026295A JP H08323214 A JPH08323214 A JP H08323214A
- Authority
- JP
- Japan
- Prior art keywords
- catalyst
- carrier
- rod
- heater
- shaped heater
- 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
- 239000003054 catalyst Substances 0.000 title claims abstract description 141
- 229910052751 metal Inorganic materials 0.000 claims abstract description 23
- 239000002184 metal Substances 0.000 claims abstract description 23
- 239000000919 ceramic Substances 0.000 claims abstract description 22
- 239000000463 material Substances 0.000 claims abstract description 14
- 239000000758 substrate Substances 0.000 claims description 18
- 230000003647 oxidation Effects 0.000 claims description 15
- 238000007254 oxidation reaction Methods 0.000 claims description 15
- 229910044991 metal oxide Inorganic materials 0.000 claims description 14
- 150000004706 metal oxides Chemical class 0.000 claims description 14
- 229910052763 palladium Inorganic materials 0.000 claims description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 6
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 claims description 6
- 239000000969 carrier Substances 0.000 claims description 6
- 229910052697 platinum Inorganic materials 0.000 claims description 6
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 4
- 239000011973 solid acid Substances 0.000 claims description 4
- 229910052737 gold Inorganic materials 0.000 claims description 3
- 229910052741 iridium Inorganic materials 0.000 claims description 3
- 229910052703 rhodium Inorganic materials 0.000 claims description 3
- 229910052707 ruthenium Inorganic materials 0.000 claims description 3
- 239000000377 silicon dioxide Substances 0.000 claims description 3
- 229910052709 silver Inorganic materials 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 9
- 238000006243 chemical reaction Methods 0.000 abstract description 7
- 231100000572 poisoning Toxicity 0.000 abstract description 4
- 230000000607 poisoning effect Effects 0.000 abstract description 4
- 239000010410 layer Substances 0.000 description 38
- 239000003921 oil Substances 0.000 description 10
- 238000000746 purification Methods 0.000 description 8
- KDLHZDBZIXYQEI-UHFFFAOYSA-N palladium Substances [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 7
- 239000007864 aqueous solution Substances 0.000 description 6
- 239000007789 gas Substances 0.000 description 6
- 239000000779 smoke Substances 0.000 description 6
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 5
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Substances [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 5
- 239000007787 solid Substances 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 239000000843 powder Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- XNDZQQSKSQTQQD-UHFFFAOYSA-N 3-methylcyclohex-2-en-1-ol Chemical compound CC1=CC(O)CCC1 XNDZQQSKSQTQQD-UHFFFAOYSA-N 0.000 description 3
- 229910002060 Fe-Cr-Al alloy Inorganic materials 0.000 description 3
- 230000002378 acidificating effect Effects 0.000 description 3
- IXSUHTFXKKBBJP-UHFFFAOYSA-L azanide;platinum(2+);dinitrite Chemical compound [NH2-].[NH2-].[Pt+2].[O-]N=O.[O-]N=O IXSUHTFXKKBBJP-UHFFFAOYSA-L 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 3
- 150000003839 salts Chemical class 0.000 description 3
- 239000002002 slurry Substances 0.000 description 3
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 230000003197 catalytic effect Effects 0.000 description 2
- 239000011247 coating layer Substances 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 238000010411 cooking Methods 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 239000011259 mixed solution Substances 0.000 description 2
- 229910000510 noble metal Inorganic materials 0.000 description 2
- 235000019645 odor Nutrition 0.000 description 2
- 239000010948 rhodium Substances 0.000 description 2
- 239000010944 silver (metal) Substances 0.000 description 2
- 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 description 1
- 240000008415 Lactuca sativa Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229910021536 Zeolite Inorganic materials 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000001877 deodorizing effect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000003925 fat Substances 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000005338 heat storage Methods 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 239000012784 inorganic fiber Substances 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000010970 precious metal Substances 0.000 description 1
- 239000012495 reaction gas Substances 0.000 description 1
- 235000012045 salad Nutrition 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 150000003384 small molecules Chemical class 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000010457 zeolite Substances 0.000 description 1
Landscapes
- Catalysts (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、主に調理器具等から発
生する油煙や臭気の浄化等に用いられる触媒部材に関す
るものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a catalyst member mainly used for cleaning oily smoke and odor generated from cookware and the like.
【０００２】[0002]
【従来の技術】上記調理器具等から発生する油煙除去
用、脱臭用の触媒には、多数の連通孔を有するハニカム
担体が用いられている。2. Description of the Related Art A honeycomb carrier having a large number of communicating holes is used as a catalyst for removing oil smoke and deodorizing generated from the above cooking appliances and the like.
【０００３】[0003]
【発明が解決しようとする課題】上記の用途に用いられ
る触媒担体であるハニカム担体は低圧損で高表面積が大
きい利点があるが、熱容量が大きく、熱伝導が悪い。そ
のためヒータによる加熱が十分に行われないという欠点
があり、調理器具等のような高湿度条件下で油煙および
比較的分解しにくい臭気等を完全を除去することができ
ない場合があった。 一方、熱伝導率に優れた金属基材
は錆が発生すること、触媒被覆層と基材の密着性が悪い
ため剥離が生じること、複雑な形状に対しては触媒被覆
層の作製が困難であること等の問題点が多かった。The honeycomb carrier, which is the catalyst carrier used for the above-mentioned applications, has the advantages of low pressure loss and large surface area, but has a large heat capacity and poor heat conduction. Therefore, there is a drawback that heating by a heater is not sufficiently performed, and in some cases, it is not possible to completely remove greasy fumes and odors that are relatively difficult to decompose under high humidity conditions such as cooking utensils. On the other hand, a metal substrate with excellent thermal conductivity causes rust, peeling occurs due to poor adhesion between the catalyst coating layer and the substrate, and it is difficult to prepare the catalyst coating layer for complicated shapes. There were many problems such as being there.
【０００４】また、このような用途の場合、油煙、アッ
シュや塩分によって酸化触媒表面が覆われるために触媒
活性が低下する問題がある。Further, in such applications, there is a problem that the catalytic activity is lowered because the surface of the oxidation catalyst is covered with oil smoke, ash and salt.
【０００５】本発明は上記従来の欠点を解消し、触媒の
反応効率を高めるとともに、触媒の被覆による被毒低減
を可能とする触媒部材を提供することを目的とするもの
である。An object of the present invention is to provide a catalyst member which solves the above-mentioned conventional drawbacks, improves the reaction efficiency of the catalyst, and can reduce the poisoning by coating the catalyst.
【０００６】[0006]
【課題を解決するための手段】本発明は、少なくとも多
孔性金属基材とセラミックスペーパーを有する触媒担体
と、その触媒担体上に形成された触媒層とを備えた触媒
体が、棒状のヒーター上にその一部を接触すると同時に
近接して設けられていることを特徴とする触媒部材であ
る。According to the present invention, a catalyst body comprising at least a catalyst carrier having a porous metal substrate and ceramics paper and a catalyst layer formed on the catalyst carrier is provided on a rod-shaped heater. The catalyst member is characterized in that it is provided so as to come into contact with a part of it at the same time as it is provided in the vicinity thereof.
【０００７】また、本発明は、上記触媒担体の形状が、
前記棒状ヒーターを中心としたらせん状であることを特
徴とする触媒部材である。According to the present invention, the shape of the catalyst carrier is
A catalyst member having a spiral shape around the rod-shaped heater.
【０００８】また、本発明は、上記触媒担体が、前記棒
状ヒーターに設けられた溝によって流路に対して斜めに
固定されていることを特徴とする触媒部材である。Further, the present invention is the catalyst member, wherein the catalyst carrier is obliquely fixed to the flow path by a groove provided in the rod-shaped heater.
【０００９】また、本発明は、上記触媒担体の形状が、
前記棒状ヒーターを中心とした渦巻状であることを特徴
とする触媒部材である。Further, according to the present invention, the shape of the catalyst carrier is
A catalyst member having a spiral shape around the rod-shaped heater.
【００１０】また、本発明は、上記隣接する触媒担体の
間隙に、触媒を塗布したセラミックスペーパーが存在し
ていることを特徴とする触媒部材である。Further, the present invention is a catalyst member characterized in that a catalyst-coated ceramic paper is present in the gap between the adjacent catalyst carriers.
【００１１】また、本発明は、少なくとも多孔性金属基
材とセラミックスペーパーを有する触媒担体と、その触
媒担体上に形成された触媒層とを備えた触媒体が設けら
れ、さらに、隣接する前記触媒担体の間隙に触媒層を形
成したセラミックスペーパーが設けられた触媒部材であ
って、前記金属基材に通電し、発熱させることを特徴と
する触媒部材である。Further, the present invention is provided with a catalyst body comprising at least a catalyst carrier having a porous metal substrate and ceramics paper, and a catalyst layer formed on the catalyst carrier, and further, the adjacent catalysts. A catalyst member in which a ceramics paper having a catalyst layer formed in a gap between carriers is provided, wherein the metal base material is energized to generate heat.
【００１２】また、本発明は、触媒層が、アルミナ、シ
リカ、ジルコニアのうち少なくとも一つからなる金属酸
化物層と、その上に設けられたAu,Ag,Pt,Pd,Rh,Ir,Ruの
うち少なくとも一つからなる酸化触媒層と、その上に設
けられた固体酸触媒層を有することを特徴とする触媒体
である。Further, according to the present invention, the catalyst layer is a metal oxide layer made of at least one of alumina, silica and zirconia, and Au, Ag, Pt, Pd, Rh, Ir and Ru are provided on the metal oxide layer. A catalyst body comprising an oxidation catalyst layer comprising at least one of the above and a solid acid catalyst layer provided thereon.
【００１３】[0013]
【作用】本発明は、セラミックスペーパーが多数の孔を
有する金属によりはさみ込まれ、複合化されることによ
って複雑な形状が維持されている。ここでセラミックス
ペーパーは好ましくは無機繊維からなる抄造体である。
上記触媒担体が棒状ヒーター上に一部で接しながら、ら
せん状や渦巻状に近接して設けられているため、ヒータ
ーからの熱が金属基材を伝わることにより、セラミック
スペーパーに担持された触媒が速やかに活性化され、処
理物質を速やかに酸化分解する。また、セラミックペー
パー中を処理物質が拡散することが可能なため、反応表
面積を増加させることができる。In the present invention, the ceramic paper is sandwiched by the metal having a large number of holes and is made into a composite, so that the complex shape is maintained. Here, the ceramics paper is preferably a paper product made of inorganic fibers.
While the catalyst carrier is provided in close proximity to the rod-shaped heater in a spiral or spiral shape, the heat from the heater is transmitted through the metal substrate, so that the catalyst supported on the ceramic paper is It is activated quickly and oxidizes and decomposes the substance to be treated. Further, since the treatment substance can diffuse in the ceramic paper, the reaction surface area can be increased.
【００１４】また、らせん状の触媒部材を固定化する場
合に、溝を棒状ヒーターの半径方向に対して斜めに設け
ることにより、らせん状触媒体が処理物質の流路に対し
てより斜めに設置されるため、ガスの触媒体への接触を
促進することができる。Further, when fixing the spiral catalyst member, the spiral catalyst body is installed more obliquely to the flow path of the treatment substance by providing the groove obliquely to the radial direction of the rod heater. Therefore, the contact of the gas with the catalyst body can be promoted.
【００１５】また、隣接するらせん状もしくは渦巻状の
触媒担体の間隙に、同形状の触媒を担持したセラミック
スペーパーのを設けることにより、触媒体の反応表面積
を増やすことができ、排ガス浄化をより効率的に行うこ
とができる。Further, by providing a ceramic paper carrying a catalyst of the same shape in the gap between the adjacent spiral or spiral catalyst carriers, the reaction surface area of the catalyst can be increased, and the exhaust gas can be purified more efficiently. Can be done on a regular basis.
【００１６】また、上記のようにヒーター上に触媒体を
展開する方法の他に、らせん状金属基材に対して電流を
通じることにより、触媒部材自体をヒータ化することに
より、より速やかに触媒を活性温度まで到達させること
ができる。この場合、セラミックスペーパーは絶縁体と
しても用いられる。棒状ヒーターと併用することも可能
である。In addition to the method of spreading the catalyst on the heater as described above, the catalyst member itself is made into a heater by passing an electric current through the spiral metal substrate, so that the catalyst can be processed more quickly. Can reach the activation temperature. In this case, the ceramic paper is also used as an insulator. It is also possible to use together with a rod-shaped heater.
【００１７】また、金属基材上もしくは複合基材上に設
けられたアルミナ、シリカ、ジルコニアのうち少なくと
も一つからなる金属酸化物層によってその上に設けられ
たAu,Ag,Pt,Pd,Rh,Ir,Ru等の酸化触媒活性種と、金属基
材との直接的な接触を防ぐことができるため、金属基材
の錆発生を防止することができる。また、上記酸化触媒
層上に設けられた固体酸性を有する金属酸化物層は、油
成分を小分子に分解する機能と、触媒層中における油成
分と触媒活性成分である貴金属の反応を防ぐ機能および
アッシュによる貴金属表面の物理的な被覆を防ぐ機能を
有するため、油脂の分解性および触媒の耐久性が向上す
る。Further, Au, Ag, Pt, Pd, Rh provided on the metal base material or the composite base material by a metal oxide layer made of at least one of alumina, silica and zirconia. Since it is possible to prevent direct contact between the metal oxide and catalytically active species such as Ir, Ru, etc., the metal substrate can be prevented from rusting. Further, the metal oxide layer having a solid acidity provided on the oxidation catalyst layer has a function of decomposing an oil component into small molecules and a function of preventing a reaction between an oil component and a noble metal which is a catalytically active component in the catalyst layer. Also, since it has a function of preventing physical coating of the precious metal surface with ash, the decomposability of fats and oils and the durability of the catalyst are improved.
【００１８】[0018]
【実施例】以下、本発明の実施例を図面に基づいて説明
する。 （実施例１）厚み０.３ｍｍのセラミックスペーパー２
を厚み０.１ｍｍのラス加工が施された金属基材（材質
Ｆｅ−Ｃｒ−Ａｌ）１によってサンドイッチした後、深
さ方向に傾斜を付けて波型加工することにより、らせん
状の触媒担体４（５０φ、面積３００ｃｍ2、重量１２
ｇ）を得た。その後、９００℃で４時間熱処理をするこ
とにより、金属基材１上に酸化皮膜を形成するととも
に、セラミックスペーパー２中に含まれる有機バインダ
ーを除去した。その後、主にＢａＯ・Ａｌ2Ｏ3・ＣｅＯ
2粉末（比表面積１２０ｍ2／ｇ）１０００ｇ、硝酸アル
ミニウム９水塩 ８５ｇ、水 １３００ｇおよびジニト
ロジアンミン白金水溶液とジニトロジアンミンパラジウ
ム水溶液をそれぞれＰｔ、Ｐｄ換算で５ｇ、５ｇ加えて
なるウォッシュコートスラリーで担体基材１０ｇあたり
１.５ｇ被覆し、乾燥後、５００℃で１時間焼成するこ
とによって酸化触媒層３が形成されたらせん状触媒体と
した。棒状ヒーター５を中心に位置させ、リングによっ
て触媒体の末端を固定することによって図１に示す触媒
部材を得た。図１の上の図はその触媒部材であり、下の
図は螺旋状触媒体である。Embodiments of the present invention will be described below with reference to the drawings. (Example 1) Ceramic paper 2 having a thickness of 0.3 mm
Is sandwiched by a lath-processed metal base material (material Fe—Cr—Al) 1 having a thickness of 0.1 mm, and is then corrugated with an inclination in the depth direction to form a spiral catalyst carrier 4 (50φ, area 300 cm 2 , weight 12
g) was obtained. Then, heat treatment was performed at 900 ° C. for 4 hours to form an oxide film on the metal substrate 1 and remove the organic binder contained in the ceramic paper 2. After that, mainly BaO ・ Al 2 O 3・ CeO
2 powders (specific surface area 120 m 2 / g) 1000 g, aluminum nitrate nonahydrate 85 g, water 1300 g and dinitrodiammineplatinum aqueous solution and dinitrodiamminepalladium aqueous solution 5 g and 5 g in terms of Pt and Pd, respectively. The material was coated with 1.5 g per 10 g of the material, dried, and then calcined at 500 ° C. for 1 hour to obtain a spiral catalyst body in which the oxidation catalyst layer 3 was formed. The rod-shaped heater 5 was positioned at the center, and the end of the catalyst body was fixed by a ring to obtain the catalyst member shown in FIG. The upper drawing of FIG. 1 shows the catalyst member, and the lower drawing shows the spiral catalyst body.
【００１９】上記のようにして得られた触媒部材を図２
に示す触媒試験装置に設け、棒状ヒータ５に通電するこ
とによって、ヒーター表面温度を４５０℃まで昇温し
た。この時触媒温度は４００℃である。その後、釜型の
シーズヒーター６にサラダ油２食塩水１の混合液９をポ
ンプ８によって３ｇ／ｍｉｎで混合液供給口７から供給
した。上記操作で発生した混合ガスをらせん体４に沿う
方向に炭化水素量を入口および触媒出口でＨＣメーター
１１を用いて測定し、触媒の浄化性能を調べた。またこ
の試験を１０００時間行い、浄化性能の経時変化を調べ
た。これら結果を表１に示す。 （実施例２）実施例１と同様に触媒担体４を作製し、熱
処理後、棒状ヒーター５に固定した。その後、主にＢａ
Ｏ・Ａｌ2Ｏ3・ＣｅＯ2粉末１０００ｇ、硝酸アルミニ
ウム９水塩 ２００ｇ、アルミナゾル１００ｇ、水 １
６００ｇからなるウォッシュコートスラリーで被覆、乾
燥後、５００℃で１時間熱処理を施し、金属酸化物層１
４を担体基材１０ｇあたり０．７５ｇ形成した（図３参
照）。その後、主にＢａＯ・Ａｌ2Ｏ3・ＣｅＯ2粉末
（比表面積１２０ｍ2／ｇ）１０００ｇ、硝酸アルミニ
ウム９水塩 ８５ｇ、水 １６００ｇおよびジニトロジ
アンミン白金水溶液とジニトロジアンミンパラジウム水
溶液をそれぞれＰｔ、Ｐｄ換算で５ｇ、５ｇ加えてなる
ウォッシュコートスラリーで担体基材１０ｇあたり１.
５ｇ被覆し、乾燥後、５００℃で焼成し、酸化触媒層３
とした（図３参照）。その後、固体酸性を有する金属酸
化物として主にＹ型ゼオライト１０００ｇ、Ａｌ2Ｏ3
１２００ｇおよび水２０００ｇからなるウォッシュコー
トスラリーにて被覆、乾燥後、５００℃で１時間焼成す
ることによって固体酸性金属酸化物層１３を担体１０ｇ
あたり０.５ｇ作製し、図３に示す層構成を有する触媒
体を得た。その後実施例１と同様な浄化試験を行った。
その結果を表１に示す。 （実施例３）実施例１と同様に厚み０.３ｍｍのセラミ
ックスペーパー２を厚み０.１ｍｍのラス加工が施され
た金属基材（材質Ｆｅ−Ｃｒ−Ａｌ）１によってサンド
イッチした後、波型加工したものを棒状ヒーター５を中
心に、上記棒状ヒーター５に一部を接触させながら固定
することにより、渦巻状の触媒担体１５（面積３００ｃ
ｍ2、重量１２ｇ）を作製した。熱処理後、主にＢａＯ
・Ａｌ2Ｏ3・ＣｅＯ2粉末（比表面積１２０ｍ2／ｇ）１
０００ｇ、硝酸アルミニウム９水塩 ８５ｇ、水１６０
０ｇおよびジニトロジアンミン白金水溶液とジニトロジ
アンミンパラジウム水溶液をそれぞれＰｔ、Ｐｄ換算で
５ｇ、５ｇ加えてなるウォッシュコートスラリーで担体
基材１０ｇあたり１.５ｇ被覆し、乾燥後、５００℃で
焼成し、酸化触媒層３とし、図４に示す触媒部材を得
た。図面上、下の図は上の図のＡ−Ａ’線に沿った断面
図である。その後実施例１と同様な浄化試験を混合ガス
を渦巻体に沿った方向に供給しながら行った。結果を表
１に示す。 （実施例４）実施例１と同様にらせん状触媒担体４を作
製し、棒状ヒーター５上に固定した。その後、図５に示
すように、厚み１ｍｍの上記触媒担体４と同じらせん状
のセラミックスペーパー２を図５のようにらせん状触媒
担体４ではさみ込んだ。その後、実施例１と同様に酸化
触媒層３を作製した。その後実施例１と同様な浄化試験
を行った。結果を表１に示す。 （実施例５）実施例４と同様にらせん状触媒担体４を作
製し、金属基材１の両端から電圧用端子をとり出した。
その後、実施例１と同様に酸化触媒層３を作製した。上
記端子に対して電圧を１５Ｖ印加して発熱させ、実施例
１と同様の試験を行った。結果を表１に示す。 （実施例６）実施例１と同様にして得たらせん状触媒担
体４を、図６に示すように、棒状ヒーター５に設けられ
た斜めの取り付け溝１６で固定するようにした。その
後、実施例１と同様に酸化触媒層３を作製した。その後
実施例１と同様な浄化試験を行った。結果を表１に示
す。 （比較例１）１５φの貫通口を有するハニカム担体（２
００セル、５０φ×１０ｍｍ）に実施例１と同量の酸化
触媒層を作製した。上記酸化触媒層３を形成したハニカ
ム担体の中心部に棒状ヒーター５を位置させて、ヒータ
ー表面温度を４５０℃とし、上記実施例と同様の油煙浄
化試験を行った。結果を表１に示す。 （比較例２）金属基材（Ｆｅ−Ｃｒ−Ａｌ鋼）を用い
て、実施例１と同形状のらせん状触媒担体（面積３００
ｃｍ2）を得た。その後、実施例１と同量の酸化触媒層
３を作製した。その後実施例１と同様な浄化試験を行っ
た。結果を表１に示す。The catalyst member obtained as described above is shown in FIG.
The heater surface temperature was raised to 450 ° C. by providing electricity to the rod-shaped heater 5 provided in the catalyst test device shown in FIG. At this time, the catalyst temperature is 400 ° C. Then, the mixed solution 9 of the salad oil 2 and the saline solution 1 was supplied to the pot-shaped sheathed heater 6 from the mixed solution supply port 7 at 3 g / min by the pump 8. The amount of hydrocarbons in the mixed gas generated by the above operation was measured in the direction along the spiral body 4 at the inlet and the outlet of the catalyst using the HC meter 11, and the purification performance of the catalyst was investigated. Further, this test was conducted for 1000 hours to examine the change with time of the purification performance. Table 1 shows the results. (Example 2) A catalyst carrier 4 was prepared in the same manner as in Example 1, heat-treated, and then fixed to a rod-shaped heater 5. After that, mainly Ba
O.Al 2 O 3 · CeO 2 powder 1000 g, aluminum nitrate nonahydrate 200 g, alumina sol 100 g, water 1
After coating with 600 g of wash coat slurry, drying, and heat treatment at 500 ° C. for 1 hour, the metal oxide layer 1
0.75 g of 4 was formed per 10 g of the carrier substrate (see FIG. 3). Then, mainly 1000 g of BaO.Al 2 O 3 .CeO 2 powder (specific surface area 120 m 2 / g), aluminum nitrate 9-hydrate 85 g, water 1600 g and dinitrodiammine platinum aqueous solution and dinitrodiammine palladium aqueous solution were respectively converted into Pt and Pd. 5g, 5g of washcoat slurry with 1g per 10g of carrier substrate.
After coating with 5 g, drying and firing at 500 ° C., oxidation catalyst layer 3
(See FIG. 3). Then, as a metal oxide having solid acidity, mainly 1000 g of Y-type zeolite, Al 2 O 3
The solid acidic metal oxide layer 13 was coated with a washcoat slurry consisting of 1200 g and 2000 g of water, dried, and then baked at 500 ° C. for 1 hour to give 10 g of a carrier to the solid acidic metal oxide layer 13.
About 0.5 g was produced to obtain a catalyst body having a layer structure shown in FIG. Then, the same purification test as in Example 1 was performed.
Table 1 shows the results. (Example 3) As in Example 1, a ceramic paper 2 having a thickness of 0.3 mm was sandwiched by a metal base material (Fe—Cr—Al) 1 having a thickness of 0.1 mm and subjected to lath processing, and then corrugated. By fixing the processed product around the rod-shaped heater 5 while partially contacting the rod-shaped heater 5, the spiral catalyst carrier 15 (area 300c
m 2 and weight 12 g) were produced. After heat treatment, mainly BaO
・ Al 2 O 3 .CeO 2 powder (specific surface area 120 m 2 / g) 1
000g, aluminum nitrate nonahydrate 85g, water 160
0 g and dinitrodiammineplatinum aqueous solution and dinitrodiamminepalladium aqueous solution were added to Pt and Pd in an amount of 5 g and 5 g, respectively, to coat the substrate with 1.5 g per 10 g of the carrier substrate, and after drying, calcination at 500 ° C., oxidation catalyst As the layer 3, the catalyst member shown in FIG. 4 was obtained. In the drawings, the lower diagram is a cross-sectional view taken along the line AA ′ of the upper diagram. Then, the same purification test as in Example 1 was performed while supplying the mixed gas in the direction along the spiral body. The results are shown in Table 1. Example 4 A spiral catalyst carrier 4 was prepared in the same manner as in Example 1 and fixed on a rod-shaped heater 5. Thereafter, as shown in FIG. 5, the same helical ceramic paper 2 having a thickness of 1 mm as the catalyst carrier 4 was sandwiched between the helical catalyst carriers 4 as shown in FIG. Then, the oxidation catalyst layer 3 was produced in the same manner as in Example 1. Then, the same purification test as in Example 1 was performed. The results are shown in Table 1. (Example 5) A spiral catalyst carrier 4 was prepared in the same manner as in Example 4, and voltage terminals were taken out from both ends of the metal substrate 1.
Then, the oxidation catalyst layer 3 was produced in the same manner as in Example 1. A voltage of 15 V was applied to the above terminals to generate heat, and the same test as in Example 1 was performed. The results are shown in Table 1. (Example 6) The spiral catalyst carrier 4 obtained in the same manner as in Example 1 was fixed in an oblique mounting groove 16 provided in the rod heater 5, as shown in FIG. Then, the oxidation catalyst layer 3 was produced in the same manner as in Example 1. Then, the same purification test as in Example 1 was performed. The results are shown in Table 1. (Comparative Example 1) A honeycomb carrier having a through hole of 15φ (2
The same amount of the oxidation catalyst layer as in Example 1 was prepared in a 00 cell, 50φ × 10 mm). The rod-shaped heater 5 was placed in the center of the honeycomb carrier on which the oxidation catalyst layer 3 was formed, the heater surface temperature was set to 450 ° C., and the same oily smoke purification test as in the above-described example was conducted. The results are shown in Table 1. (Comparative Example 2) A spiral catalyst carrier (area 300) having the same shape as in Example 1 was prepared using a metal base material (Fe-Cr-Al steel).
cm 2 ) was obtained. Then, the same amount of the oxidation catalyst layer 3 as in Example 1 was produced. Then, the same purification test as in Example 1 was performed. The results are shown in Table 1.
【００２０】[0020]
【表１】 [Table 1]
【００２１】表１の結果からわかるように比較例１で
は、ヒーターからの熱伝達が悪いために触媒温度が相対
的に低く、活性が充分に得られない。また、活性低下も
大きく、これは不完全分解物質による被毒と考えられ
る。As can be seen from the results shown in Table 1, in Comparative Example 1, the catalyst temperature is relatively low due to poor heat transfer from the heater, and sufficient activity cannot be obtained. In addition, the activity is also greatly reduced, which is considered to be poisoning by incompletely decomposed substances.
【００２２】比較例２では１０００ｈ後に塩分によって
錆が発生し、触媒層の剥離も著しく生じていた。それに
より活性が大きく低下した。In Comparative Example 2, rust was generated due to salt content after 1000 hours and the catalyst layer was significantly peeled off. This greatly reduced the activity.
【００２３】それに対して、多孔性金属基材に支持され
たセラミックスペーパーを用いた場合には、触媒層の剥
離は発生せず、比較的良好な特性を維持した。また、実
施例３のような構成をとっても同程度の活性が得られ
た。それに加えて実施例２のような触媒層構成をとった
場合には、反応活性が向上するとともに、活性低下が少
なかった。これは、第１層の金属酸化物層が酸化触媒層
の貴金属と金属基材の接触を防ぐことと、固体酸触媒が
活性向上に寄与しているためである。実施例４、６のよ
うな構成をとることによっても、耐久性については効果
はないものの、初期活性は向上した。これは、油煙の接
触度合いが多くなるためと考えられる。また、実施例５
のように金属基材自体をヒーター化し、触媒温度を均一
に昇温することにより、さらに活性は向上した。棒状ヒ
ーターと併用した場合、ヒーター通電後、触媒表面温度
が４００℃になるまでの時間は、実施例１の約半分であ
った。On the other hand, when the ceramic paper supported by the porous metal substrate was used, the catalyst layer was not peeled off, and relatively good characteristics were maintained. In addition, the same degree of activity was obtained even with the configuration of Example 3. In addition to that, when the catalyst layer structure as in Example 2 was adopted, the reaction activity was improved and the activity decrease was small. This is because the first metal oxide layer prevents the noble metal of the oxidation catalyst layer from coming into contact with the metal substrate, and the solid acid catalyst contributes to the activity improvement. By adopting the configurations of Examples 4 and 6, although the durability was not effective, the initial activity was improved. It is considered that this is because the degree of contact of oil smoke increases. Example 5
As described above, the activity was further improved by turning the metal substrate itself into a heater and uniformly raising the catalyst temperature. When used in combination with the rod-shaped heater, the time until the catalyst surface temperature reached 400 ° C. after the heater was energized was about half that in Example 1.
【００２４】なお、本実施例では、反応ガスをらせん体
および渦巻体に沿った方向から供給しているが、棒状ヒ
ーターに対して垂直方向にガス流路を設定してもよい。In this embodiment, the reaction gas is supplied from the direction along the spiral body and the spiral body, but the gas passage may be set in the direction perpendicular to the rod heater.
【００２５】[0025]
【発明の効果】以上述べたところから明らかなように、
本発明の触媒部材は伝熱性に優れ、低圧力損失でかつ触
媒の表面積を大きくとれるため、触媒活性を十分に発揮
させ、油煙の除去をすることができる。また、触媒体の
間に同形状のセラミックスペーパーを位置させたり、流
路に対して触媒体を斜めに設置することにより排気ガス
の触媒への拡散の割合を増加させることができる。ま
た、触媒基材自信も発熱させることでより速やかに触媒
が昇温され、触媒温度もさらに均一化することができ
る。また、触媒層の下に金属酸化物層を設けることで、
金属基材の錆発生を抑制できる。また、触媒層の上に固
体酸性の金属酸化物を設けることにより、触媒の油分、
塩分、アッシュによる被毒を防ぐことができる。また、
放熱性に優れるために、触媒層内の蓄熱を原因とする触
媒成分の熱劣化を抑えることができ、またそれによって
制限されていた反応領域を大きくすることができる。As is apparent from the above description,
Since the catalyst member of the present invention has excellent heat conductivity, low pressure loss, and a large surface area of the catalyst, it is possible to sufficiently exhibit catalytic activity and remove oil smoke. Further, by arranging a ceramic paper of the same shape between the catalyst bodies or by arranging the catalyst body obliquely with respect to the flow path, it is possible to increase the diffusion rate of the exhaust gas into the catalyst. In addition, the temperature of the catalyst can be raised more quickly by making the catalyst base material generate heat, and the catalyst temperature can be made more uniform. Further, by providing a metal oxide layer under the catalyst layer,
Generation of rust on the metal base material can be suppressed. Further, by providing a solid acidic metal oxide on the catalyst layer, the oil content of the catalyst,
Poisoning due to salt and ash can be prevented. Also,
Since the heat dissipation is excellent, it is possible to suppress the thermal deterioration of the catalyst component due to the heat storage in the catalyst layer, and it is possible to enlarge the reaction region limited by the heat deterioration.
【図１】本発明の実施例１における触媒部材の外観図で
ある。FIG. 1 is an external view of a catalyst member according to a first embodiment of the present invention.
【図２】本発明の実施例に用いた触媒試験装置の概略図
である。FIG. 2 is a schematic view of a catalyst test device used in an example of the present invention.
【図３】本発明の実施例２に示す触媒層厚み方向の縦断
面図である。FIG. 3 is a vertical sectional view in a thickness direction of a catalyst layer shown in Example 2 of the present invention.
【図４】本発明の実施例３に示す触媒部材の外観図であ
る。FIG. 4 is an external view of a catalyst member according to a third embodiment of the present invention.
【図５】本発明の実施例４に示す触媒部材の外観図であ
る。FIG. 5 is an external view of a catalyst member shown in Example 4 of the present invention.
【図６】本発明の実施例６に示す触媒体の棒状ヒーター
への装着図である。FIG. 6 is a diagram showing how the catalyst body according to Example 6 of the present invention is mounted on a rod-shaped heater.
１ 金属基材 ２ セラミックスペーパー ３ 酸化触媒層 ４ らせん状触媒担体 ５ 棒状ヒーター ６ 釜型シーズヒーター ７ 混合液供給口 ８ ポンプ ９ 油食塩水混合液 １０ サンプリングチューブ １１ ＨＣメータ １２ 温度コントローラ １３ 固体酸触媒層 １４ 金属酸化物層 １５ 渦巻状触媒担体 １６ 触媒取付溝 DESCRIPTION OF SYMBOLS 1 Metal substrate 2 Ceramics paper 3 Oxidation catalyst layer 4 Spiral catalyst carrier 5 Rod heater 6 Kettle type sheath heater 7 Mixed liquid supply port 8 Pump 9 Oil / saline mixture 10 Sampling tube 11 HC meter 12 Temperature controller 13 Solid acid catalyst Layer 14 Metal oxide layer 15 Spiral catalyst carrier 16 Catalyst mounting groove
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｂ０１Ｊ 35/04 ３１１ Ｂ０１Ｊ 35/04 ３１１Ａ ３２１ ３２１Ｚ ─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 6 Identification code Internal reference number FI Technical display location B01J 35/04 311 B01J 35/04 311A 321 321Z
Claims (7)
スペーパーを有する触媒担体と、その触媒担体上に形成
された触媒層とを備えた触媒体が、棒状のヒーター上に
その一部を接触すると同時に近接して設けられているこ
とを特徴とする触媒部材。1. A catalyst body comprising at least a catalyst carrier having a porous metal substrate and a ceramics paper, and a catalyst layer formed on the catalyst carrier, contacts a part of it on a rod-shaped heater at the same time. A catalyst member characterized by being provided in proximity to each other.
中心としたらせん状であることを特徴とする請求項１記
載の触媒部材。2. The catalyst member according to claim 1, wherein the shape of the catalyst carrier is a spiral shape around the rod-shaped heater.
れた溝によって流路に対して斜めに固定されていること
を特徴とする請求項２記載の触媒部材。3. The catalyst member according to claim 2, wherein the catalyst carrier is obliquely fixed to the flow path by a groove provided in the rod-shaped heater.
中心とした渦巻状であることを特徴とする請求項１記載
の触媒部材。4. The catalyst member according to claim 1, wherein the catalyst carrier has a spiral shape centered around the rod-shaped heater.
したセラミックスペーパーが存在していることを特徴と
する請求項１、２、または３記載の触媒部材。5. The catalyst member according to claim 1, 2 or 3, wherein ceramic paper coated with a catalyst is present in a gap between adjacent catalyst carriers.
スペーパーを有する触媒担体と、その触媒担体上に形成
された触媒層とを備えた触媒体が設けられ、さらに、隣
接する前記触媒担体の間隙に触媒層を形成したセラミッ
クスペーパーが設けられた触媒部材であって、前記金属
基材に通電し、発熱させることを特徴とする触媒部材。6. A catalyst body comprising at least a catalyst carrier having a porous metal base material and ceramics paper, and a catalyst layer formed on the catalyst carrier is provided, and the space between adjacent catalyst carriers is provided. A catalyst member provided with a ceramics paper having a catalyst layer formed thereon, wherein the metal base material is energized to generate heat.
アのうち少なくとも一つからなる金属酸化物層と、その
上に設けられたAu,Ag,Pt,Pd,Rh,Ir,Ruのうち少なくとも
一つからなる酸化触媒層と、その上に設けられた固体酸
触媒層を有することを特徴とする触媒体。7. The catalyst layer comprises a metal oxide layer made of at least one of alumina, silica and zirconia, and at least one of Au, Ag, Pt, Pd, Rh, Ir and Ru provided thereon. A catalyst body comprising an oxidation catalyst layer consisting of two layers and a solid acid catalyst layer provided thereon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7130262A JPH08323214A (en) | 1995-05-29 | 1995-05-29 | Catalyst member |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7130262A JPH08323214A (en) | 1995-05-29 | 1995-05-29 | Catalyst member |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH08323214A true JPH08323214A (en) | 1996-12-10 |
Family
ID=15030072
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7130262A Pending JPH08323214A (en) | 1995-05-29 | 1995-05-29 | Catalyst member |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH08323214A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010235406A (en) * | 2009-03-31 | 2010-10-21 | Toyota Industries Corp | Reformer |
-
1995
- 1995-05-29 JP JP7130262A patent/JPH08323214A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010235406A (en) * | 2009-03-31 | 2010-10-21 | Toyota Industries Corp | Reformer |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5318757A (en) | Honeycomb heater and catalytic converter | |
| US6071850A (en) | Multi-layer non-identical catalyst on metal substrate by electrophoretic deposition | |
| JP2007270649A (en) | Plasma reactor | |
| JPH05293376A (en) | Catalyst for purifying exhaust gas and method therefor | |
| JP3058995B2 (en) | Honeycomb heater | |
| JP3327054B2 (en) | Exhaust gas purification catalyst | |
| JPH05285387A (en) | Catalyst for purification of exhaust gas and purification method | |
| JPH08323214A (en) | Catalyst member | |
| JPH02172538A (en) | Catalyst body for purifying waste gas | |
| JPS6051543A (en) | Oxidizing catalyst | |
| JP2020062627A (en) | Ammonia cleaning catalyst | |
| JPH07204518A (en) | Purifying device for exhaust gas from automobile | |
| JP2004000838A (en) | Catalyst for cleaning exhaust gas | |
| JPH08196906A (en) | Catalyst member | |
| JP2004267969A (en) | Exhaust gas purification equipment, catalyst for purifying exhaust gas as well as its manufacturing method | |
| JPS5821534B2 (en) | catalyst body | |
| WO1997030193A1 (en) | Catalyst on metal substrate by simultaneous electrophoretic deposition of catalyst and catalyst adhesion material | |
| JPH10230135A (en) | Catalyst heater and catalytic device using the catalytic heater | |
| JPH0522261Y2 (en) | ||
| JP2002320851A (en) | Catalyst for cleaning exhaust gas and method for manufacturing the same | |
| JPH03193141A (en) | Preparation of self-heating type catalyst | |
| JP2005103480A (en) | Catalyst for cleaning diesel engine exhaust gas | |
| JPS6147575B2 (en) | ||
| JPH10225635A (en) | Catalyst for purifying diesel exhaust gas | |
| JPH09206598A (en) | Catalyst and its production |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20040525 |
|
| A02 | Decision of refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A02 Effective date: 20041130 |