JP2553678B2 - Oil stove combustion gas purification catalyst - Google Patents
Oil stove combustion gas purification catalystInfo
- Publication number
- JP2553678B2 JP2553678B2 JP63312299A JP31229988A JP2553678B2 JP 2553678 B2 JP2553678 B2 JP 2553678B2 JP 63312299 A JP63312299 A JP 63312299A JP 31229988 A JP31229988 A JP 31229988A JP 2553678 B2 JP2553678 B2 JP 2553678B2
- Authority
- JP
- Japan
- Prior art keywords
- catalyst
- combustion gas
- oil stove
- gas purification
- purification catalyst
- 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 - Fee Related
Links
- 239000003054 catalyst Substances 0.000 title claims description 32
- 239000000567 combustion gas Substances 0.000 title claims description 17
- 238000000746 purification Methods 0.000 title description 2
- 238000002485 combustion reaction Methods 0.000 claims description 11
- 229910052751 metal Inorganic materials 0.000 claims description 11
- 239000002184 metal Substances 0.000 claims description 11
- 239000011247 coating layer Substances 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 9
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical group [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 9
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 8
- 239000011888 foil Substances 0.000 claims description 4
- 239000003208 petroleum Substances 0.000 claims description 3
- 239000000758 substrate Substances 0.000 description 7
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 6
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 6
- 239000007789 gas Substances 0.000 description 6
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 3
- 229910002091 carbon monoxide Inorganic materials 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 229930195733 hydrocarbon Natural products 0.000 description 3
- 150000002430 hydrocarbons Chemical class 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 229910052763 palladium Inorganic materials 0.000 description 3
- 229910052697 platinum Inorganic materials 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- KJTLSVCANCCWHF-UHFFFAOYSA-N Ruthenium Chemical compound [Ru] KJTLSVCANCCWHF-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- CNLWCVNCHLKFHK-UHFFFAOYSA-N aluminum;lithium;dioxido(oxo)silane Chemical compound [Li+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O CNLWCVNCHLKFHK-UHFFFAOYSA-N 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910001593 boehmite Inorganic materials 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 230000000052 comparative effect Effects 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
- KZHJGOXRZJKJNY-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Si]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O KZHJGOXRZJKJNY-UHFFFAOYSA-N 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- FAHBNUUHRFUEAI-UHFFFAOYSA-M hydroxidooxidoaluminium Chemical compound O[Al]=O FAHBNUUHRFUEAI-UHFFFAOYSA-M 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 229910052863 mullite Inorganic materials 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- -1 platinum group metals Chemical class 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000011214 refractory ceramic Substances 0.000 description 1
- 229910052703 rhodium Inorganic materials 0.000 description 1
- 239000010948 rhodium Substances 0.000 description 1
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 description 1
- SONJTKJMTWTJCT-UHFFFAOYSA-K rhodium(iii) chloride Chemical compound [Cl-].[Cl-].[Cl-].[Rh+3] SONJTKJMTWTJCT-UHFFFAOYSA-K 0.000 description 1
- 229910052707 ruthenium Inorganic materials 0.000 description 1
- 229910052642 spodumene Inorganic materials 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Landscapes
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
- Catalysts (AREA)
Description
【発明の詳細な説明】 産業上の利用分野 本発明は、石油ストーブの燃焼排ガスの浄化に用いる
触媒に関する。TECHNICAL FIELD The present invention relates to a catalyst used for purification of combustion exhaust gas from an oil stove.
従来の技術 従来のこの種ガス浄化用触媒は、特開昭61−234935号
公報に開示されているように耐火性セラミックス、例え
ば、コーディエライト、アルミナ、ムライト、スポデュ
メンなどのハニカム状基材に、ウオッシュコートと呼ば
れるガンマアルミナ等の被覆層を形成することにより、
比表面積を通常10〜30m2/gに増大させ、これに触媒金
属、例えば白金、ロジウム、パラジウム、ルテニウム等
を担持して調製していた。2. Description of the Related Art Conventional catalysts for purifying this type of gas are refractory ceramics as disclosed in JP-A-61-234935, for example, honeycomb-shaped substrates such as cordierite, alumina, mullite, and spodumene. By forming a coating layer such as gamma alumina called wash coat,
The specific surface area was usually increased to 10 to 30 m 2 / g, and catalyst metals such as platinum, rhodium, palladium, ruthenium, etc. were supported on the specific surface area.
一方、石油ストーブの燃焼筒の上方に設置する燃焼ガ
ス浄化用触媒としては、燃焼ガスの流通抵抗が比較的小
さく、かつ周囲への熱伝導が大きいことが要求されると
ころから、中空円筒型の触媒が求められている。On the other hand, as a combustion gas purifying catalyst installed above the combustion tube of an oil stove, it is required that the flow resistance of the combustion gas is relatively small and that the heat conduction to the surroundings is large, so that the hollow cylinder type catalyst is used. A catalyst is needed.
発明が解決しようとする課題 しかし、上記のような材料では、基材を湾曲させるこ
とが困難であり、中空円筒型の触媒は構成できない。ま
た、上記の基材は、熱伝導率が小さい。さらに、ハニカ
ム体の目が細かくなるに従い触媒被覆層の形成が困難と
なる。DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention However, with the above materials, it is difficult to bend the substrate, and a hollow cylindrical catalyst cannot be formed. Moreover, the above-mentioned base material has a small thermal conductivity. Furthermore, as the honeycomb body becomes finer, it becomes more difficult to form the catalyst coating layer.
本発明は、上記問題点に鑑み、加工性に優れるととも
に、効率よく燃焼ガスを浄化し、かつ周囲への熱伝導性
に優れた石油ストーブの燃焼ガス浄化用触媒を提供する
ことを目的とする。In view of the above problems, it is an object of the present invention to provide a catalyst for purifying combustion gas of petroleum stoves, which has excellent workability, efficiently purifies combustion gas, and has excellent thermal conductivity to the surroundings. .
課題を解決するための手段 本発明は、石油ストーブの燃焼筒上方に設置する燃焼
ガス浄化用触媒において、上方ほど貫通孔の直径が大き
くなるように多数の貫通孔を配列した中空円筒型の金属
箔体からなる基材を用い、これに白金族金属を含む活性
アルミナからなる被覆層を形成するものである。Means for Solving the Problems The present invention relates to a combustion gas purifying catalyst installed above a combustion cylinder of an oil stove, and is a hollow cylindrical metal in which a large number of through holes are arranged so that the diameter of the through holes becomes larger toward the upper side. A base material made of a foil is used, and a coating layer made of activated alumina containing a platinum group metal is formed on the base material.
作用 本発明の触媒は、基材が金属であることから、湾曲等
の成形が容易で、しかも熱伝導率が大きく、その表面へ
の白金族金属を含んだ活性アルミナ被覆層の形成が容易
となる。また、触媒基材の形状を貫通孔を有した中空円
筒型とし、この貫通孔の直径を上方ほど、即ち燃焼筒か
ら離れるにつれて次第に大きくすることにより、以下の
ような効果が得られる。Effect The catalyst of the present invention, because the base material is a metal, is easy to form such as bending, has a high thermal conductivity, and facilitates formation of an active alumina coating layer containing a platinum group metal on the surface thereof. Become. Further, the following effects can be obtained by making the shape of the catalyst base into a hollow cylindrical type having a through hole and gradually increasing the diameter of the through hole, that is, as the distance from the combustion cylinder increases.
触媒の燃焼ガス浄化能は、貫通孔の直径が小さく触媒
と燃焼ガスとの接触面積が大きいほど高くなる。しか
し、燃焼熱は、貫通孔の直径が大きく触媒と燃焼ガスの
接触面積が小さいほど効率よく外部に伝導できる。ま
た、燃焼ガス中の一酸化炭素、炭化水素、一酸化窒素
は、中空円筒型触媒の下部の方が上部よりも高い。従っ
て、効率よく熱を外部に伝え、かつ効率よく燃焼ガスを
浄化するためには、貫通孔の直径を触媒下部では小さく
し、燃焼炎から離れるにつれて次第に大きくすることに
より、最も効率よく燃焼ガスの浄化と熱の伝導を行うこ
とができる。The combustion gas purifying ability of the catalyst becomes higher as the diameter of the through hole is smaller and the contact area between the catalyst and the combustion gas is larger. However, the combustion heat can be more efficiently conducted to the outside as the diameter of the through hole is larger and the contact area between the catalyst and the combustion gas is smaller. Further, carbon monoxide, hydrocarbons, and nitric oxide in the combustion gas are higher in the lower part of the hollow cylindrical catalyst than in the upper part. Therefore, in order to efficiently transfer heat to the outside and to efficiently purify the combustion gas, the diameter of the through hole is made smaller in the lower part of the catalyst and gradually increased as the distance from the combustion flame increases, so that the most efficient combustion gas It can purify and conduct heat.
実施例 以下、本発明の実施例を説明する。Examples Hereinafter, examples of the present invention will be described.
《第１実施例》 第１図は本実施例に用いた触媒の金属基材１を示す。
この基材１は、鉄85wt％、クロム10wt％及びアルミニウ
ム5wt％からなる厚さ1mmのステンレス鋼の箔体を直径15
0mmの中空円筒型に構成したもので、かつ上方ほど直径
が2mmから6mmへと次第に大きくなるように多数の貫通孔
２が設けてある。３は石油ストーブへの取付け金具であ
る。<< First Example >> FIG. 1 shows a metal substrate 1 of a catalyst used in this example.
The base material 1 is a stainless steel foil body having a thickness of 1 mm and made of 85 wt% iron, 10 wt% chromium and 5 wt% aluminum and having a diameter of 15 mm.
It has a hollow cylindrical shape of 0 mm, and has a large number of through holes 2 so that the diameter gradually increases from 2 mm to 6 mm as it goes upward. 3 is a metal fitting for the oil stove.
この基材１に以下のようにして白金とパラジウムを含
む活性アルミナ被覆層を形成した。即ち、活性アルミナ
（比表面積200m2/g、粒径300ミクロン以下が99％）と市
販のベーマイトからなるバインダーとが90対10の重量比
で、また白金族金属として塩化白金酸と塩化ロジウムが
触媒体積あたりそれぞれ30mg/リットルと15mg/リットル
含まれるように混合し、比重1.50の水溶液スラリーとし
た。このスラリーに上記の基材を浸漬し、乾燥して被覆
層を形成した。さらに、150℃の温度で30分間熱風乾燥
し、被覆層と基材との接着強度を高めるため500℃で１
時間焼成した。以上の工程を２回繰り返すことにより基
材に厚み100ミクロン、付着量80g被覆層/1リットル担
体、形成した。An active alumina coating layer containing platinum and palladium was formed on the base material 1 as follows. That is, activated alumina (specific surface area 200 m 2 / g, particle size 300 micron or less 99%) and commercially available boehmite binder in a weight ratio of 90:10, and platinum group metals chloroplatinic acid and rhodium chloride. The catalyst volumes were mixed so as to be 30 mg / liter and 15 mg / liter, respectively, to prepare an aqueous solution slurry having a specific gravity of 1.50. The above-mentioned substrate was immersed in this slurry and dried to form a coating layer. Further, it is dried with hot air at a temperature of 150 ° C for 30 minutes to increase the adhesive strength between the coating layer and the substrate.
Burned for hours. By repeating the above steps twice, a substrate having a thickness of 100 μm and an adhesion amount of 80 g coating layer / 1 liter carrier was formed.
第２図は上記の触媒４を取付けた石油ストーブを示し
ている。５は燃焼筒、６は天板を示す。FIG. 2 shows a petroleum stove equipped with the catalyst 4 described above. Reference numeral 5 indicates a combustion cylinder, and 6 indicates a top plate.
本実施例の触媒を取付けた石油ストーブの天板６の上
方2cmのガス組成を測定し、その結果を第１表に示す。
測定したガスは一酸化炭素（CO）、炭化水素（HC）及び
一酸化窒素（NO）である。The gas composition was measured 2 cm above the top plate 6 of the oil stove equipped with the catalyst of this example, and the results are shown in Table 1.
The measured gases are carbon monoxide (CO), hydrocarbons (HC) and nitric oxide (NO).
一方、比較例として、触媒を取付けていない石油スト
ーブの前記と同様な場所におけるガス組成を同じく第１
表に示す。第１表に示す結果より明らかなように、本発
明の触媒を用いるとクリーンな燃焼を行うことができ
る。さらに、本発明の触媒による熱の輻射（遠赤外線放
射）があるため従来品より暖かかった。On the other hand, as a comparative example, the gas composition at the same place as above in an oil stove not having a catalyst attached is the same as that of
Shown in the table. As is clear from the results shown in Table 1, clean combustion can be performed using the catalyst of the present invention. Furthermore, since the catalyst of the present invention emits heat (far infrared radiation), it was warmer than the conventional product.
《第２実施例》 第１実施例と同じ貫通孔を有する金属箔を波状に加工
し、これで直径150mmの中空円筒型の担体を構成し、第
１実施例の同様の方法で同量の白金とパラジウムを含ん
だ活性アルミナ被覆層を形成した。 << Second Embodiment >> A metal foil having the same through-holes as in the first embodiment is processed into a wavy shape to form a hollow cylindrical carrier having a diameter of 150 mm. An activated alumina coating layer containing platinum and palladium was formed.
この触媒を石油ストーブに取付け、ストーブの天板の
上方2cmのガス組成を測定した結果を第２表に示す。This catalyst was attached to an oil stove, and the gas composition measured 2 cm above the stove top plate is shown in Table 2.
第２表の結果より明らかなように、本実施例の触媒を
用いると、第１実施例に示したものより燃焼ガスとの接
触面積が増大し、さらにクリーンな燃焼を行うことがで
きる。 As is clear from the results shown in Table 2, when the catalyst of this example is used, the contact area with the combustion gas is larger than that shown in the first example, and a more clean combustion can be performed.
発明の効果 以上のように、本発明によれば効率よく石油ストーブ
の燃焼ガスの浄化と熱伝導を行うことができる。EFFECTS OF THE INVENTION As described above, according to the present invention, the combustion gas of an oil stove can be efficiently purified and heat conduction can be performed.
第１図は本発明の実施例の燃焼ガス浄化用触媒の基材の
外観図、第２図は同触媒を設置した石油ストーブの正面
図である。 １……基材、２……貫通孔、４……触媒、５……燃焼
筒。FIG. 1 is an external view of a base material of a combustion gas purifying catalyst according to an embodiment of the present invention, and FIG. 2 is a front view of an oil stove in which the catalyst is installed. 1 ... Substrate, 2 ... Through hole, 4 ... Catalyst, 5 ... Combustion cylinder.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 西野 敦 大阪府門真市大字門真1006番地 松下電 器産業株式会社内 (56)参考文献 特開 昭63−162045（ＪＰ，Ａ) 特開 昭62−91244（ＪＰ，Ａ) 実開 昭56−13631（ＪＰ，Ｕ) 特公 昭55−41812（ＪＰ，Ｂ２) 特公 昭55−50706（ＪＰ，Ｂ２) ─────────────────────────────────────────────────── ─── Continued Front Page (72) Inventor Atsushi Nishino 1006 Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Industrial Co., Ltd. (56) References JP 63-162045 (JP, A) JP 62- 91244 (JP, A) Actual development Sho 56-13631 (JP, U) Special public account 55-41812 (JP, B2) Special public account 55-50706 (JP, B2)
Claims (1)
ガス浄化用触媒であって、上方ほど貫通孔の直径が大き
くなるように多数の貫通孔を配列した中空円筒型の金属
箔体からなる基材に、白金族金属を含む活性アルミナか
らなる被覆層を形成した石油ストーブの燃焼ガス浄化用
触媒。1. A catalyst for purifying combustion gas, which is installed above a combustion cylinder of an oil stove, and comprises a hollow cylindrical metal foil body in which a large number of through holes are arranged so that the diameter of the through holes becomes larger toward the upper side. A catalyst for purifying combustion gas of a petroleum stove in which a coating layer made of activated alumina containing a platinum group metal is formed on a base material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63312299A JP2553678B2 (en) | 1988-12-09 | 1988-12-09 | Oil stove combustion gas purification catalyst |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63312299A JP2553678B2 (en) | 1988-12-09 | 1988-12-09 | Oil stove combustion gas purification catalyst |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02157047A JPH02157047A (en) | 1990-06-15 |
| JP2553678B2 true JP2553678B2 (en) | 1996-11-13 |
Family
ID=18027578
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63312299A Expired - Fee Related JP2553678B2 (en) | 1988-12-09 | 1988-12-09 | Oil stove combustion gas purification catalyst |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2553678B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0813899A3 (en) * | 1996-06-20 | 1998-07-01 | Honda Giken Kogyo Kabushiki Kaisha | Catalyst element for purifying exhaust gases from internal combustion engine |
| US6596243B1 (en) | 1996-06-20 | 2003-07-22 | Honda Giken Kogyo Kabushiki Kaisha | Catalyst element for purifying exhaust gases from internal combustion engine |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5541812A (en) * | 1978-09-18 | 1980-03-24 | Lundholms Verksteder Ab | Liquid filter |
| JPS5550706A (en) * | 1978-10-06 | 1980-04-12 | Eichi Ueruzu Donarudo | Mutual transductance variable tuning antenna |
| JPS5613631U (en) * | 1979-07-10 | 1981-02-05 | ||
| US4708946A (en) * | 1985-05-23 | 1987-11-24 | Nippon Shokubai Kagaku Kogyo Co., Ltd. | Catalyst for purifying exhaust gas |
| JPS63162045A (en) * | 1986-12-25 | 1988-07-05 | Toyota Motor Corp | Production of catalyst deposited on metallic carrier for cleaning exhaust gas |
-
1988
- 1988-12-09 JP JP63312299A patent/JP2553678B2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0813899A3 (en) * | 1996-06-20 | 1998-07-01 | Honda Giken Kogyo Kabushiki Kaisha | Catalyst element for purifying exhaust gases from internal combustion engine |
| US6596243B1 (en) | 1996-06-20 | 2003-07-22 | Honda Giken Kogyo Kabushiki Kaisha | Catalyst element for purifying exhaust gases from internal combustion engine |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02157047A (en) | 1990-06-15 |
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