JP2001152980A - Catalyst carrier and gas reforming method using catalyst carrier - Google Patents
Catalyst carrier and gas reforming method using catalyst carrierInfo
- Publication number
- JP2001152980A JP2001152980A JP33397399A JP33397399A JP2001152980A JP 2001152980 A JP2001152980 A JP 2001152980A JP 33397399 A JP33397399 A JP 33397399A JP 33397399 A JP33397399 A JP 33397399A JP 2001152980 A JP2001152980 A JP 2001152980A
- Authority
- JP
- Japan
- Prior art keywords
- catalyst carrier
- catalyst
- honeycomb body
- gas
- carrier
- 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.)
- Withdrawn
Links
- 239000003054 catalyst Substances 0.000 title claims abstract description 108
- 238000002407 reforming Methods 0.000 title claims abstract description 17
- 238000000034 method Methods 0.000 title claims abstract description 11
- 238000006555 catalytic reaction Methods 0.000 claims description 21
- 238000006243 chemical reaction Methods 0.000 abstract description 5
- 230000001939 inductive effect Effects 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 48
- 210000004027 cell Anatomy 0.000 description 28
- 239000011888 foil Substances 0.000 description 14
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 12
- 239000002184 metal Substances 0.000 description 10
- 238000002485 combustion reaction Methods 0.000 description 7
- 239000010935 stainless steel Substances 0.000 description 4
- 229910001220 stainless steel Inorganic materials 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000000969 carrier Substances 0.000 description 3
- 230000003197 catalytic effect Effects 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 150000002430 hydrocarbons Chemical class 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 230000002250 progressing effect Effects 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 238000000629 steam reforming Methods 0.000 description 2
- 102100032566 Carbonic anhydrase-related protein 10 Human genes 0.000 description 1
- 101100321669 Fagopyrum esculentum FA02 gene Proteins 0.000 description 1
- 102100022626 Glutamate receptor ionotropic, NMDA 2D Human genes 0.000 description 1
- 101000867836 Homo sapiens Carbonic anhydrase-related protein 10 Proteins 0.000 description 1
- 101000972840 Homo sapiens Glutamate receptor ionotropic, NMDA 2D Proteins 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 238000005219 brazing Methods 0.000 description 1
- 238000001193 catalytic steam reforming Methods 0.000 description 1
- 210000002421 cell wall Anatomy 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- -1 methanol Chemical class 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Landscapes
- Hydrogen, Water And Hydrids (AREA)
- Catalysts (AREA)
- Exhaust Gas After Treatment (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、内燃機関の排気ガ
ス浄化やメタノールの水蒸気改質等の目的で用いられる
触媒を担持するための触媒担体及び触媒担体を用いたガ
ス改質方法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 carrier for supporting a catalyst used for purifying exhaust gas of an internal combustion engine or steam reforming of methanol, and a gas reforming method using the catalyst carrier. is there.
【０００２】[0002]
【従来の技術】内燃機関の排気ガスを触媒反応で改質し
て浄化する目的で、排気ガス経路に触媒を担持した触媒
コンバータが配置される。また、メタノール等の炭化水
素化合物を水蒸気改質して水素リッチなガスを生成する
改質装置においても、同様に触媒を担持した担体が用い
られる。これらガス改質に用いる触媒担体は、ガスが通
過する多数のセルを有し、各セルの壁面には触媒がコー
ティングされ、セルを通過するガスと触媒とが広い接触
面積で接触することが可能になっている。2. Description of the Related Art A catalytic converter carrying a catalyst is disposed in an exhaust gas path for the purpose of reforming and purifying exhaust gas of an internal combustion engine by a catalytic reaction. Similarly, in a reformer for producing a hydrogen-rich gas by steam reforming a hydrocarbon compound such as methanol, a carrier carrying a catalyst is also used. The catalyst carrier used for these gas reforming has a large number of cells through which gas passes, and the wall of each cell is coated with a catalyst, so that the gas passing through the cell can come into contact with the catalyst over a wide contact area. It has become.
【０００３】これらの目的で用いられる触媒担体として
は、セラミックス担体とメタル担体とがある。メタル担
体は、耐熱合金を用いた平箔と波箔とを交互に積層して
円筒形のハニカム体とし、このハニカム体を円筒形の金
属製の外筒に装入してメタル担体とする。[0003] Catalyst carriers used for these purposes include ceramic carriers and metal carriers. The metal carrier is formed by alternately stacking flat foils and corrugated foils made of a heat-resistant alloy to form a cylindrical honeycomb body. The honeycomb body is charged into a cylindrical metal outer cylinder to form a metal carrier.
【０００４】触媒担体における触媒反応効率が低いと、
触媒担体を通過したガスに未反応成分が残存することと
なる。また、内燃機関の排気ガス浄化用に触媒担体を用
いる場合においては、エンジン始動時に速やかに触媒に
着火して触媒担体の温度を上昇させる必要があるが、触
媒反応効率が低いと昇温特性が十分に得られないことと
なる。If the catalytic reaction efficiency of the catalyst carrier is low,
Unreacted components will remain in the gas that has passed through the catalyst carrier. Further, when a catalyst carrier is used for purifying exhaust gas of an internal combustion engine, it is necessary to ignite the catalyst at the time of starting the engine and raise the temperature of the catalyst carrier. It will not be obtained enough.
【０００５】触媒担体における触媒反応を促進するため
には、セル内において、セル壁面の触媒と接触して触媒
反応が完了したガスと未だ触媒反応が完了していないガ
スとが迅速に入れ替わり、セルを通過するガスのすべて
の部分がいち早く触媒と接触して反応を行なうことが重
要である。そのため、各セルの断面積を極力小さくし、
かつ触媒担体の長さを確保して十分に長いセルを形成し
ている。In order to promote the catalytic reaction on the catalyst carrier, the gas in which the catalytic reaction has been completed by contact with the catalyst on the cell wall and the gas which has not yet been completed in the cell are rapidly replaced in the cell. It is important that all parts of the gas passing through the catalyst contact the catalyst as soon as possible to carry out the reaction. Therefore, minimize the cross-sectional area of each cell,
In addition, a sufficiently long cell is formed by securing the length of the catalyst carrier.
【０００６】[0006]
【発明が解決しようとする課題】セルの断面積を小さく
したり触媒担体の長さを長くしたりすると、セルを通過
する際の抵抗が増大し、触媒担体における圧力損失の増
大を招くことになる。また、触媒担体を大きくしてセル
の数を増大すると、使用する触媒の量の増大を招き、触
媒担体のコストを増大させ、また触媒担体の熱容量が増
大するためにエンジン始動時の昇温特性を低下させる原
因となる。If the cross-sectional area of the cell is reduced or the length of the catalyst carrier is increased, the resistance when passing through the cell increases, and the pressure loss in the catalyst carrier increases. Become. In addition, when the number of cells is increased by enlarging the catalyst carrier, the amount of the catalyst to be used is increased, thereby increasing the cost of the catalyst carrier and increasing the heat capacity of the catalyst carrier. Cause a decrease.
【０００７】本発明は、触媒担体における圧力損失を増
大せず、またコストを増大することなく、触媒担体にお
ける触媒反応効率を向上する触媒担体及び触媒担体を用
いたガス改質方法を提供することを目的とする。[0007] The present invention provides a catalyst carrier and a gas reforming method using the catalyst carrier, which improve the catalyst reaction efficiency of the catalyst carrier without increasing the pressure loss in the catalyst carrier and without increasing the cost. With the goal.
【０００８】[0008]
【課題を解決するための手段】即ち、本発明の要旨とす
るところは以下の通りである。 （１）触媒を担持した多数のセルを有するハニカム体２
と、該ハニカム体を振動させる振動付加装置４とを有す
ることを特徴とする触媒担体。 （２）触媒を担持した多数のセルを有するハニカム体２
と、該ハニカム体を回転させる回転駆動装置５とを有す
ることを特徴とする触媒担体。 （３）触媒を担持した多数のセルを有するハニカム体２
を有する触媒担体１を用いたガス改質方法であって、触
媒反応を起こさせるに際して該ハニカム体を振動させる
ことを特徴とするガス改質方法。 （４）触媒を担持した多数のセルを有するハニカム体２
を有する触媒担体１を用いたガス改質方法であって、触
媒反応を起こさせるに際して該ハニカム体を回転させる
ことを特徴とするガス改質方法。That is, the gist of the present invention is as follows. (1) Honeycomb body 2 having many cells carrying catalyst
And a vibration applying device 4 for vibrating the honeycomb body. (2) Honeycomb body 2 having many cells carrying catalyst
And a rotation drive device 5 for rotating the honeycomb body. (3) Honeycomb body 2 having many cells carrying catalyst
A gas reforming method using a catalyst carrier 1 having the following, wherein the honeycomb body is vibrated when a catalytic reaction is caused. (4) Honeycomb body 2 having many cells carrying catalyst
A gas reforming method using a catalyst carrier 1 having the following structure, wherein the honeycomb body is rotated when causing a catalytic reaction.
【０００９】ここで、ガス改質とは、例えば内燃機関か
ら排出する排気ガス中の有害成分を触媒反応によって除
去するガス改質や、メタノール等の炭化水素化合物を水
蒸気改質して水素リッチなガスを生成する改質等をい
う。Here, gas reforming refers to, for example, gas reforming for removing harmful components in exhaust gas discharged from an internal combustion engine by a catalytic reaction, or steam reforming of a hydrocarbon compound such as methanol to obtain a hydrogen-rich gas. It refers to reforming that produces gas.
【００１０】触媒担体のセルを通過するガスの流れは、
セルの断面積が小さいことに起因し、通常はレイノルズ
数が小さく、層流を形成している。そのため、セル断面
内において乱流の場合に発生するようなガスの入れ替わ
りが少なく、これがために触媒反応効率に限界が生じて
いたことが判明した。The flow of gas through the cells of the catalyst support is
Due to the small cross-sectional area of the cell, the Reynolds number is usually small and a laminar flow is formed. For this reason, it has been found that the exchange of gases that occurs in the case of turbulent flow in the cell cross section is small, and this limits the catalytic reaction efficiency.
【００１１】本発明においては、セルにガスが通過して
触媒反応が進行している過程において、触媒担体１を振
動し、あるいは触媒担体１を回転することにより、セル
内におけるガスの流れに乱れを与え、もって触媒反応効
率の向上を図るところにその特徴がある。In the present invention, the gas flow in the cell is disturbed by vibrating the catalyst carrier 1 or rotating the catalyst carrier 1 while the gas is passing through the cell and the catalytic reaction is progressing. And thereby improving the catalytic reaction efficiency.
【００１２】[0012]
【発明の実施の形態】本発明に用いる触媒担体１として
は、メタル担体、セラミックス担体のいずれをも用いる
ことができる。その中でも、軽量かつ熱容量が小さくて
昇温特性が優れているメタル担体を用いることがより好
ましい。BEST MODE FOR CARRYING OUT THE INVENTION As the catalyst carrier 1 used in the present invention, any of a metal carrier and a ceramic carrier can be used. Among them, it is more preferable to use a metal carrier that is lightweight, has a small heat capacity, and is excellent in temperature rising characteristics.
【００１３】触媒担体１としてメタル担体を用いる場
合、ステンレス鋼製平箔と、該平箔をコルゲート加工し
た波箔とを交互にスパイラル状に巻き回し、又は平箔と
波箔とを積層してハニカム体２とする。このハニカム体
を同じくステンレス鋼製の外筒３に収納し、平箔と波箔
との接触部の全部又は一部をロウ付け又は拡散接合によ
って接合する。ハニカム体２には平箔と波箔とで囲まれ
た多数のセルが形成されており、このセルの壁面となる
箔の表面に触媒を担持することによってメタル担体が形
成される。When a metal carrier is used as the catalyst carrier 1, a stainless steel flat foil and a corrugated corrugated foil are alternately wound in a spiral shape, or a flat foil and a corrugated foil are laminated. The honeycomb body 2 is used. The honeycomb body is housed in an outer cylinder 3 also made of stainless steel, and all or a part of the contact portion between the flat foil and the corrugated foil is joined by brazing or diffusion bonding. A large number of cells surrounded by a flat foil and a corrugated foil are formed in the honeycomb body 2, and a metal carrier is formed by supporting a catalyst on the surface of the foil serving as the wall surface of the cells.
【００１４】本発明の第１の実施の形態においては、図
１に示すように、触媒担体１のセルにガスを通過させて
触媒反応を起こさせるに際し、触媒担体１を振動させ
る。振動付加手段としては、触媒担体１に振動付加装置
４としてバイブレータを装着し、このバイブレータの振
動によって触媒担体１を振動させてもよい。また、内燃
機関の排気ガス浄化用として本発明を用いる場合は、内
燃機関から発生する振動を直接触媒担体１に伝達し、こ
れによって触媒担体１を振動させてもよい。触媒担体１
が振動することによってセルの表面で通過ガスに乱れが
生じ、これによって触媒反応が促進される。In the first embodiment of the present invention, as shown in FIG. 1, when a gas is passed through a cell of the catalyst carrier 1 to cause a catalytic reaction, the catalyst carrier 1 is vibrated. As the vibration applying means, a vibrator may be mounted on the catalyst carrier 1 as the vibration applying device 4, and the vibration of the vibrator may cause the catalyst carrier 1 to vibrate. When the present invention is used for purifying the exhaust gas of an internal combustion engine, the vibration generated from the internal combustion engine may be directly transmitted to the catalyst carrier 1 and the catalyst carrier 1 may be vibrated. Catalyst carrier 1
Oscillation causes turbulence in the passing gas on the surface of the cell, which promotes the catalytic reaction.
【００１５】振動の方向９としては、触媒担体１の軸に
平行な方向９ｂ、あるいは軸に垂直な方向９ａの何れで
も良い。The vibration direction 9 may be either a direction 9b parallel to the axis of the catalyst carrier 1 or a direction 9a perpendicular to the axis.
【００１６】触媒担体１に振動を与えるに際しては、振
動数は１０Ｈｚ〜１０ｋＨｚ、触媒担体の振幅は０．１
ｍｍ〜５ｍｍの範囲が好適である。振動数が１０Ｈｚ未
満であるとセル内の通過ガスの乱れがゆるやかでガスと
担体壁との間の境界層を乱すのに不十分であり、１０ｋ
Ｈｚを超えるとガス流の乱れが微細になりすぎて連続流
れと同様になり、境界層に変化が生じないためである。
また、振幅が０．１ｍｍ未満では振動のエネルギーが不
足して境界層に変化が生じないので触媒反応の促進効果
を得ることができない。一方、５ｍｍを超えると振動が
強すぎて触媒担体を破壊する恐れが生ずるため好ましく
ない。When applying vibration to the catalyst carrier 1, the vibration frequency is 10 Hz to 10 kHz, and the amplitude of the catalyst carrier is 0.1
A range of mm to 5 mm is preferred. If the frequency is less than 10 Hz, the turbulence of the gas passing through the cell is slow and insufficient to disturb the boundary layer between the gas and the carrier wall.
If the frequency exceeds Hz, the turbulence of the gas flow becomes too fine and becomes similar to the continuous flow, so that no change occurs in the boundary layer.
If the amplitude is less than 0.1 mm, the energy of vibration is insufficient and the boundary layer does not change, so that the effect of promoting the catalytic reaction cannot be obtained. On the other hand, if it exceeds 5 mm, the vibration is too strong and the catalyst carrier may be broken, which is not preferable.
【００１７】触媒担体１を振動自由に保持するために
は、図１に示すように触媒担体１を前後から保持する拡
径コーン６と縮径コーン７と触媒担体１との間を弾性係
数の小さいジョイント８によって接合する方法を採用す
ることができる。In order to hold the catalyst carrier 1 free from vibration, as shown in FIG. 1, an elastic coefficient of the elastic coefficient is set between the large diameter cone 6 and the small diameter cone 7 for holding the catalyst carrier 1 from front and rear and the catalyst carrier 1. A joining method using a small joint 8 can be adopted.
【００１８】本発明の第２の実施の形態においては、触
媒担体のセルにガスを通過させて触媒反応を起こさせる
に際し、触媒担体１を回転する。回転は、触媒担体を通
過するガス流に平行な触媒担体１の中心軸を回転軸とし
て行なう。触媒担体１の形状としては、該回転軸を中心
として軸対象な円筒形であることが好ましい。触媒担体
１に図２に示すように電動モーター等を用いた回転駆動
装置５を取り付け、該回転駆動装置５によって触媒担体
１を前記回転軸を中心に回転させる。触媒担体１が回転
しているので担体入口でのガス流の乱れが増幅されるの
と、セル内のガスと担体壁との境界層に遠心力による外
力が作用し、乱れが生じるために触媒反応が促進され
る。In the second embodiment of the present invention, the catalyst carrier 1 is rotated when a gas is passed through the cell of the catalyst carrier to cause a catalytic reaction. The rotation is performed with the center axis of the catalyst carrier 1 parallel to the gas flow passing through the catalyst carrier as the rotation axis. The shape of the catalyst carrier 1 is preferably a cylindrical shape that is symmetric about the rotation axis. As shown in FIG. 2, a rotary drive device 5 using an electric motor or the like is attached to the catalyst carrier 1, and the rotary drive device 5 rotates the catalyst carrier 1 about the rotation axis. Since the catalyst carrier 1 is rotating, turbulence in the gas flow at the carrier inlet is amplified, and external force due to centrifugal force acts on the boundary layer between the gas in the cell and the carrier wall, causing turbulence. The reaction is accelerated.
【００１９】触媒担体１を回転させるに際しては、触媒
担体１の回転数は１０ｒｐｍ〜１０００ｒｐｍの範囲が
好適である。１０ｒｐｍ未満では遠心力が弱く、境界層
内の乱れが不十分なため触媒反応の促進効果を得ること
ができない。また、１０００ｒｐｍを超えると促進効果
が飽和することと回転機構やメタル担体自体の機械的強
度要求が急増し装置が大型化するため好ましくない。When rotating the catalyst carrier 1, the rotation speed of the catalyst carrier 1 is preferably in the range of 10 rpm to 1000 rpm. If it is less than 10 rpm, the centrifugal force is weak and the disturbance in the boundary layer is insufficient, so that the effect of promoting the catalytic reaction cannot be obtained. On the other hand, when the rotation speed exceeds 1000 rpm, the acceleration effect is saturated, and the mechanical strength requirements of the rotating mechanism and the metal carrier itself increase rapidly, which is not preferable.
【００２０】本発明によって触媒担体１の触媒反応効率
が向上するので、従来と同様の形状の触媒担体を使用し
て本発明を適用することにより、ガス改質効率を向上
し、また排気ガス浄化装置においてはエンジン始動時の
昇温効率を改善することができる。また、従来と同様の
ガス改質効率を維持するのであれば触媒担体の長さを短
くすることができ、これによって触媒担体の製造コスト
削減、及び触媒担体を通過するガスの圧力損失低減を図
ることができる。Since the catalytic reaction efficiency of the catalyst carrier 1 is improved by the present invention, the present invention is applied by using a catalyst carrier having the same shape as the conventional one, thereby improving the gas reforming efficiency and improving the exhaust gas purification. In the device, the temperature raising efficiency at the time of starting the engine can be improved. In addition, if the same gas reforming efficiency as that of the related art is maintained, the length of the catalyst carrier can be reduced, thereby reducing the production cost of the catalyst carrier and reducing the pressure loss of the gas passing through the catalyst carrier. be able to.
【００２１】[0021]
【実施例】自動車の排気ガス浄化用触媒担体として本発
明を適用した。厚さ２０μｍのステンレス鋼製平箔と波
箔とを交互にスパイラル状に巻き回し、直径８０ｍｍ、
長さ１００ｍｍのハニカム体２とし、このハニカム体２
をステンレス鋼製の外筒３に装着して触媒を担持し、メ
タル触媒担体１とした。波箔の波ピッチは２．５ｍｍ、
波高さは１．２５ｍｍとした。この触媒担体を自動車の
排気ガス系統に配置した。触媒反応の良否の判断は、エ
ンジン停止時からエンジンを始動した後の触媒担体の昇
温特性によって比較した。触媒担体の昇温速度が速いほ
ど、エンジン始動時における触媒未反応ガスの排出量を
少なくすることができる。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention is applied to a catalyst carrier for purifying an exhaust gas of an automobile. A stainless steel flat foil and a corrugated foil having a thickness of 20 μm are alternately wound in a spiral shape, and have a diameter of 80 mm.
A honeycomb body 2 having a length of 100 mm was formed.
Was mounted on a stainless steel outer cylinder 3 to carry a catalyst, thereby obtaining a metal catalyst carrier 1. The wave pitch of the corrugated foil is 2.5mm,
The wave height was 1.25 mm. This catalyst carrier was placed in the exhaust gas system of an automobile. The determination of the quality of the catalytic reaction was made based on the temperature rising characteristics of the catalyst carrier after the engine was started after the engine was stopped. As the rate of temperature rise of the catalyst carrier is higher, the amount of unreacted catalyst gas discharged at the time of starting the engine can be reduced.
【００２２】本発明例１においては、触媒担体１を用い
て図１に示す触媒コンバーターを形成した。ジョイント
８によって触媒担体１を拡径コーン６及び縮径コーン７
に対して振動自由に配置し、振動付加装置４によって触
媒担体に振動を加えた。振動数は１０００Ｈｚ、触媒担
体の振幅は１ｍｍとした。In Example 1 of the present invention, the catalytic converter shown in FIG. The catalyst carrier 1 is separated by the joint 8 into the enlarged cone 6 and the reduced cone 7.
, And the catalyst carrier was vibrated by the vibration applying device 4. The frequency was 1000 Hz, and the amplitude of the catalyst carrier was 1 mm.
【００２３】本発明例２においては、触媒担体１を用い
て図２に示す触媒コンバーターを形成した。回転駆動装
置５として電動モーターを用い、歯車１０ａと歯車１０
ｂによって回転を伝達し、触媒担体１を回転させた。回
転部分はベアリング１１によって回転自由に保持し、シ
ール材１２によって回転部分からのガスの洩れを防止し
ている。回転数は１００ｒｐｍとした。In Example 2 of the present invention, the catalytic converter shown in FIG. An electric motor is used as the rotation drive device 5, and the gear 10a and the gear 10
The rotation was transmitted by b, and the catalyst carrier 1 was rotated. The rotating part is rotatably held by a bearing 11, and leakage of gas from the rotating part is prevented by a sealing material 12. The rotation speed was 100 rpm.
【００２４】比較例においては、同じ触媒担体を用い、
振動も回転も付加させずに処理を行なった。In the comparative example, the same catalyst carrier was used,
The processing was performed without adding any vibration or rotation.
【００２５】その結果、本発明例１は比較例に比べて触
媒担体の昇温速度が約３０％向上した。また本発明例２
では比較例に比べて昇温速度が約４０％向上した。As a result, the temperature of the catalyst carrier of Example 1 of the present invention was improved by about 30% as compared with the comparative example. Example 2 of the present invention
In the example, the heating rate was improved by about 40% as compared with the comparative example.
【００２６】[0026]
【発明の効果】本発明は、セルにガスが通過して触媒反
応が進行している過程において、触媒担体を振動し、あ
るいは触媒担体を回転することにより、セル内における
ガスの流れに乱れを与え、もって触媒反応効率の向上を
図ることができた。この結果、内燃機関の排気ガス浄化
やメタノールの水蒸気改質に本発明を用いることによ
り、高い効率でガスの改質を行なうことが可能になっ
た。According to the present invention, the gas flow in the cell is disturbed by vibrating the catalyst carrier or rotating the catalyst carrier in the process where the gas passes through the cell and the catalytic reaction is progressing. As a result, the catalytic reaction efficiency could be improved. As a result, by using the present invention for purifying the exhaust gas of an internal combustion engine and reforming the steam of methanol, it has become possible to reform the gas with high efficiency.
【図１】本発明の振動付加装置を有する触媒担体を示す
断面図である。FIG. 1 is a cross-sectional view showing a catalyst carrier having a vibration applying device of the present invention.
【図２】本発明の回転駆動装置を有する触媒担体を示す
断面図である。FIG. 2 is a cross-sectional view showing a catalyst carrier having a rotary drive device of the present invention.
１ 触媒担体 ２ ハニカム体 ３ 外筒 ４ 振動付加装置 ５ 回転駆動装置 ６ 拡径コーン ７ 縮径コーン ８ ジョイント ９ 振動方向 １０ 歯車 １１ ベアリング １２ シール材 １３ 断熱材 １４ ガス流れ DESCRIPTION OF SYMBOLS 1 Catalyst support 2 Honeycomb body 3 Outer cylinder 4 Vibration addition device 5 Rotation drive device 6 Large diameter cone 7 Reduced diameter cone 8 Joint 9 Vibration direction 10 Gear 11 Bearing 12 Seal material 13 Insulation material 14 Gas flow
───────────────────────────────────────────────────── フロントページの続き (72)発明者 加古 卓三 東海市東海町５−３ 新日本製鐵株式会社 名古屋製鐵所内 (72)発明者 大河内 敏博 東海市東海町５−３ 新日本製鐵株式会社 名古屋製鐵所内 (72)発明者 坂場 則男 東海市東海町５−３ 新日本製鐵株式会社 名古屋製鐵所内 Ｆターム(参考） 3G091 AB01 BA00 BA01 BA03 BA15 BA38 CB08 FA02 FA04 FB02 FC07 GA06 GA08 GB01X GB01Z GB10X GB17X HA44 4D048 AB03 AB05 BA39X BB02 BD10 CA01 CB10 CC03 CC23 CC38 4G040 EA02 EA06 EB11 EC07 4G069 AA01 AA03 AA08 BA18 CA03 CA10 CC25 DA06 EA21 EB15Y EB17Y FA08 ──────────────────────────────────────────────────の Continuing on the front page (72) Inventor Takuzo Kako 5-3 Tokaicho, Tokai City Inside Nippon Steel Corporation Nagoya Works (72) Inventor Toshihiro Okochi 5-3 Tokaicho, Tokai City Nippon Steel Corporation Company Nagoya Works (72) Inventor Norio Sakaba 5-3 Tokai-cho, Tokai-shi Nippon Steel Corporation Nagoya Works F-term (reference) 3G091 AB01 BA00 BA01 BA03 BA15 BA38 CB08 FA02 FA04 FB02 FC07 GA06 GA08 GB01X GB01Z GB10X GB17X HA44 4D048 AB03 AB05 BA39X BB02 BD10 CA01 CB10 CC03 CC23 CC38 4G040 EA02 EA06 EB11 EC07 4G069 AA01 AA03 AA08 BA18 CA03 CA10 CC25 DA06 EA21 EB15Y EB17Y FA08
Claims (4)
カム体と、該ハニカム体を振動させる振動付加装置とを
有することを特徴とする触媒担体。1. A catalyst carrier comprising: a honeycomb body having a large number of cells supporting a catalyst; and a vibration applying device for vibrating the honeycomb body.
カム体と、該ハニカム体を回転させる回転駆動装置とを
有することを特徴とする触媒担体。2. A catalyst carrier comprising: a honeycomb body having a large number of cells supporting a catalyst; and a rotation drive device for rotating the honeycomb body.
カム体を有する触媒担体を用いたガス改質方法であっ
て、触媒反応を起こさせるに際して該ハニカム体を振動
させることを特徴とするガス改質方法。3. A gas reforming method using a catalyst carrier having a honeycomb body having a large number of cells supporting a catalyst, wherein the honeycomb body is vibrated when a catalytic reaction occurs. Quality way.
カム体を有する触媒担体を用いたガス改質方法であっ
て、触媒反応を起こさせるに際して該ハニカム体を回転
させることを特徴とするガス改質方法。4. A gas reforming method using a catalyst carrier having a honeycomb body having a large number of cells supporting a catalyst, wherein the honeycomb body is rotated when a catalytic reaction occurs. Quality way.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33397399A JP2001152980A (en) | 1999-11-25 | 1999-11-25 | Catalyst carrier and gas reforming method using catalyst carrier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33397399A JP2001152980A (en) | 1999-11-25 | 1999-11-25 | Catalyst carrier and gas reforming method using catalyst carrier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2001152980A true JP2001152980A (en) | 2001-06-05 |
Family
ID=18272071
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP33397399A Withdrawn JP2001152980A (en) | 1999-11-25 | 1999-11-25 | Catalyst carrier and gas reforming method using catalyst carrier |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2001152980A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008031897A (en) * | 2006-07-27 | 2008-02-14 | Yamaha Marine Co Ltd | Exhaust system in eight-cylinder engine |
| JP2008031868A (en) * | 2006-07-26 | 2008-02-14 | Yamaha Marine Co Ltd | Exhaust system in eight-cylinder engine |
| JP2008031867A (en) * | 2006-07-26 | 2008-02-14 | Yamaha Marine Co Ltd | Exhaust system in six-cylinder engine |
-
1999
- 1999-11-25 JP JP33397399A patent/JP2001152980A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008031868A (en) * | 2006-07-26 | 2008-02-14 | Yamaha Marine Co Ltd | Exhaust system in eight-cylinder engine |
| JP2008031867A (en) * | 2006-07-26 | 2008-02-14 | Yamaha Marine Co Ltd | Exhaust system in six-cylinder engine |
| JP2008031897A (en) * | 2006-07-27 | 2008-02-14 | Yamaha Marine Co Ltd | Exhaust system in eight-cylinder engine |
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