JPH0365228B2 - - Google Patents
Info
- Publication number
- JPH0365228B2 JPH0365228B2 JP59234960A JP23496084A JPH0365228B2 JP H0365228 B2 JPH0365228 B2 JP H0365228B2 JP 59234960 A JP59234960 A JP 59234960A JP 23496084 A JP23496084 A JP 23496084A JP H0365228 B2 JPH0365228 B2 JP H0365228B2
- Authority
- JP
- Japan
- Prior art keywords
- catalyst
- inner cylinder
- cylinder
- outer cylinder
- support
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000003054 catalyst Substances 0.000 claims description 55
- 238000006555 catalytic reaction Methods 0.000 claims description 10
- 230000002093 peripheral effect Effects 0.000 claims description 9
- 239000007789 gas Substances 0.000 claims description 8
- 239000012495 reaction gas Substances 0.000 claims description 6
- 239000000376 reactant Substances 0.000 claims description 2
- 238000006243 chemical reaction Methods 0.000 description 10
- 230000006378 damage Effects 0.000 description 10
- 239000000446 fuel Substances 0.000 description 5
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008602 contraction Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000012774 insulation material Substances 0.000 description 2
- 239000003345 natural gas Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 238000013467 fragmentation Methods 0.000 description 1
- 238000006062 fragmentation reaction Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000000629 steam reforming Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/06—Combination of fuel cells with means for production of reactants or for treatment of residues
- H01M8/0606—Combination of fuel cells with means for production of reactants or for treatment of residues with means for production of gaseous reactants
- H01M8/0612—Combination of fuel cells with means for production of reactants or for treatment of residues with means for production of gaseous reactants from carbon-containing material
- H01M8/0625—Combination of fuel cells with means for production of reactants or for treatment of residues with means for production of gaseous reactants from carbon-containing material in a modular combined reactor/fuel cell structure
- H01M8/0631—Reactor construction specially adapted for combination reactor/fuel cell
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
- B01J8/02—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with stationary particles, e.g. in fixed beds
- B01J8/06—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with stationary particles, e.g. in fixed beds in tube reactors; the solid particles being arranged in tubes
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Sustainable Development (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Energy (AREA)
- Manufacturing & Machinery (AREA)
- Engineering & Computer Science (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
- Hydrogen, Water And Hydrids (AREA)
- Fuel Cell (AREA)
Description
【発明の詳細な説明】
〔発明の利用分野〕
本発明は、触媒反応装置に係り、特に、触媒を
封入した反応管の熱膨張，熱収縮に起因する触媒
の破壊を防止する触媒反応装置に関する。[Detailed Description of the Invention] [Field of Application of the Invention] The present invention relates to a catalytic reaction device, and more particularly to a catalytic reaction device that prevents destruction of a catalyst due to thermal expansion and contraction of a reaction tube in which a catalyst is enclosed. .
外筒，内筒を具え、外筒の内周面と内筒の外周
面とで構成された空間部に触媒を封入した反応部
に、加熱しながら反応ガスを通し、化学反応を起
させる装置の一例として燃料電池装置のリフオー
マがある。このリフオーマは、天然ガスと水蒸気
の混合ガスを上記空間部に導き、ここでバーナに
より外部から加熱しながら水素を多量に含むガス
とするものである。
A device that is equipped with an outer cylinder and an inner cylinder, and causes a chemical reaction by passing a reaction gas while heating it through a reaction section in which a catalyst is sealed in a space formed by the inner peripheral surface of the outer cylinder and the outer peripheral surface of the inner cylinder. An example of this is a re-former for a fuel cell device. This reformer introduces a mixed gas of natural gas and water vapor into the above-mentioned space, where it is heated from the outside by a burner to form a gas containing a large amount of hydrogen.
このように構成されたリフオーマにおいては、
外筒と内筒の間の空間部の径方向の寸法（以後ギ
ヤツプと呼ぶ）は装置の立上げ時（運転開始時）
と立下げ時（停止時）では、熱膨張によつてその
大きさが異なる。従つて、ギヤツプが拡大する際
には、空間部に配置された触媒の粒子はギヤツプ
の拡大によつて生じた隙間を埋めるようにその自
重によつて落ちて来る。逆に、ギヤツプが収縮す
る際は、触媒の粒子は上方に押し上げられるが、
このとき触媒には圧縮力や摩擦力のような触媒を
破壊しようとする力が働くため、装置が起動，停
止を繰り返すうちに、触媒が破壊されている。 In a refoma configured in this way,
The radial dimension of the space between the outer cylinder and the inner cylinder (hereinafter referred to as the gap) is determined at the time of device startup (start of operation).
The size differs depending on thermal expansion and when it is turned down (stopped). Therefore, when the gap expands, the catalyst particles placed in the space fall under their own weight to fill the gap created by the gap expansion. Conversely, when the gap contracts, catalyst particles are pushed upwards,
At this time, forces such as compressive force and frictional force that try to destroy the catalyst act on the catalyst, so as the device is repeatedly started and stopped, the catalyst is destroyed.
この現象については、Gas Research Institute
によるOn Site Fuel Cell Power Plant
Technology and Development Program，
Anual Report（Jan 1982−Jan 1983）において
「スランピング」と呼び論じられている。 For more information on this phenomenon, please refer to the Gas Research Institute
On Site Fuel Cell Power Plant by
Technology and Development Program,
It is called "slumping" and discussed in the Annual Report (Jan 1982-Jan 1983).
しかしながら、このスランピングを防止するた
めの方法として外筒と内筒の間の空間部の長手方
向に単に触媒を支えるための複数の棚を設けるこ
とが提案されているが、この方法は、上記記動，
停止にもとづく触媒の移動を本質的に防止するも
のではなく、触媒の破壊を本質的に防止するもの
ではない。 However, as a method to prevent this slumping, it has been proposed to simply provide a plurality of shelves in the longitudinal direction of the space between the outer cylinder and the inner cylinder to support the catalyst, but this method does not work as described above. motion,
It does not inherently prevent catalyst migration due to shutdown, nor does it inherently prevent catalyst destruction.
実開昭58−137440号公報には、外管、内管、中
心管を備え、内管と外管の間に触媒層を設けた燃
料電池用リフオーマが開示されている。しかし上
記公報においては、触媒のスランピングや触媒保
持手段については論じられていない。 Japanese Utility Model Application Publication No. 137440/1983 discloses a fuel cell reformer that includes an outer tube, an inner tube, and a center tube, and has a catalyst layer between the inner tube and the outer tube. However, the above publication does not discuss catalyst slumping or catalyst holding means.
又、特公昭50−3267号公報には、内筒と外筒の
間の空間において触媒を保持する手段として、皿
部と皿部を支持する外筒の内周面に設けられた支
持体と内筒の外周面に設けられた支持体とからな
る触媒支持手段を使用することが記載されてい
る。しかし上記公報においても、触媒のスランピ
ングについては何ら記載されておらず、該公報記
載の技術ではスランピング解消には充分ではなか
つた。 Furthermore, Japanese Patent Publication No. 50-3267 discloses that as a means for holding the catalyst in the space between the inner cylinder and the outer cylinder, a support member provided on the inner circumferential surface of the outer cylinder that supports the plate part and the plate part. It is described that a catalyst support means is used, which comprises a support provided on the outer circumferential surface of the inner cylinder. However, even in the above publication, there is no mention of slumping of the catalyst, and the technique described in the publication was not sufficient to eliminate slumping.
ちなみに、内径が100mm，長さが1600mmの外筒、
内径が30mm、長さが1500mmの内筒の熱膨張の一例
を具体的に示すと、外筒の径方向で0.36mm，長手
方向で、18mmの熱膨張、また、内筒の径方向で
1.2mm，長手方向で19mmの熱膨張を有する。 By the way, the outer cylinder has an inner diameter of 100 mm and a length of 1600 mm.
To give a concrete example of thermal expansion of an inner cylinder with an inner diameter of 30 mm and a length of 1500 mm, the outer cylinder has a thermal expansion of 0.36 mm in the radial direction and 18 mm in the longitudinal direction, and the inner cylinder has a thermal expansion of 0.36 mm in the radial direction.
It has a thermal expansion of 1.2 mm and 19 mm in the longitudinal direction.
本発明の目的は、触媒の反応熱によつて生じる
反応管の拡大，収縮に起因する触媒の破壊を抑制
する手段を提供することにある。
An object of the present invention is to provide a means for suppressing destruction of a catalyst caused by expansion and contraction of a reaction tube caused by reaction heat of the catalyst.
上記目的を達成するために、本発明は、触媒保
持手段の支持を触媒反応装置の立上げ時と立下げ
時で変えるように構成したものである。このよう
に構成することによつて、触媒に加えられる圧縮
力や摩擦力を軽減し、触媒の破壊を抑制できる。
In order to achieve the above object, the present invention is configured such that the support of the catalyst holding means is changed when the catalytic reaction apparatus is started up and when it is stopped down. With this configuration, the compressive force and frictional force applied to the catalyst can be reduced, and destruction of the catalyst can be suppressed.
以下、本発明の一実施例を第１図ないし第５図
にもとづき説明する。
Hereinafter, one embodiment of the present invention will be described based on FIGS. 1 to 5.
第１図，第２図は、触媒反応装置の一例として
燃料電池装置のリフオーマを掲げて示したもの
で、同図に示す如く、リフオーマは、内筒２、内
筒２と同心的に配置された外筒１、内筒２の外周
面と外筒１の内周面とで形成される環状部、すな
わち空間部に封入された触媒３とから構成される
反応部H1〜H7と、これらを包囲するように配置
したシエル６と、反応部H1ないしH7を加熱する
バーナ７、とを主要部とする。そして、内筒２、
外筒１の断面は円形状に形成されていると共に外
筒１の一端は、開口し、他端は閉塞し、内筒２の
一端は反応ガス９を導出する管路１１に連結し、
他端を外筒１の閉塞端近傍に開口している。該内
筒の他端（下端）は、外筒と独立に配置されてお
り、内筒下端と外筒下端は、軸方向に相対的に独
立して移動可能になつている。また、反応部H1
ないしH7は、シエル６内に並設するよう構成さ
れ、管路１１はシエル６内において、各反応部の
内筒２の一端を集合するように構成している。８
はシエル６の断熱材である。 Fig. 1 and Fig. 2 show a re-former of a fuel cell device as an example of a catalytic reaction device.As shown in the figure, the re-former is arranged concentrically with the inner cylinder 2. Reaction parts H 1 to H 7 each include a catalyst 3 sealed in an annular portion, that is, a space, formed by the outer circumferential surface of the outer cylinder 1 and the inner circumferential surface of the inner cylinder 2; The main parts are a shell 6 arranged so as to surround these and a burner 7 that heats the reaction parts H1 to H7 . And inner cylinder 2,
The cross section of the outer cylinder 1 is formed into a circular shape, one end of the outer cylinder 1 is open and the other end is closed, and one end of the inner cylinder 2 is connected to a conduit 11 for leading out the reaction gas 9.
The other end is opened near the closed end of the outer cylinder 1. The other end (lower end) of the inner cylinder is arranged independently of the outer cylinder, and the lower end of the inner cylinder and the lower end of the outer cylinder are movable relatively independently in the axial direction. In addition, reaction part H 1
to H7 are arranged in parallel in the shell 6, and the pipe line 11 is arranged in the shell 6 so as to collect one end of the inner cylinder 2 of each reaction section. 8
is Ciel 6 insulation material.
更に、第１図において、５は、外筒１，内筒２
の下端で触媒３を保持する目皿で、第３図に詳細
を示したような支持体で支持される。第３図に示
すように、目皿５は内筒２の外周面と外筒１の内
周面とで形成される空間部に適合するように環状
にかつ、下記第１，第２の支持体と独立に形成さ
れている。１２，１３は、目皿５を外筒１，内筒
２の下端部で支持する第１，第２の支持体で、そ
れぞれ環状にかつ、互いに独立に形成されてい
る。そして、第１の支持体１２の外周面は外筒１
の内周面に、第２の支持体１３の内周面は内筒２
の外周面に固着されている。また、第１，第２の
支持体１，２の目皿５の下面に対向するそれぞれ
の面積は、目皿５をそれぞれ単独に移動できる広
さに構成されている。目皿５は支持体１２，１３
の上面に乗つているが、該支持体１２，１３と目
皿５とは相互に結合されてはおらず、目皿５を上
方に、あるいは目皿５を保持して支持体を下方に
移動すると、両者が自動的に離脱するようになつ
ている。目皿５を第１，第２の支持体１２，１３
により支持する理由は、次の通りである。 Furthermore, in FIG. 1, 5 indicates an outer cylinder 1 and an inner cylinder 2.
A perforated plate holding the catalyst 3 at the lower end thereof is supported by a support as shown in detail in FIG. As shown in FIG. 3, the perforated plate 5 has an annular shape so as to fit into the space formed by the outer peripheral surface of the inner cylinder 2 and the inner peripheral surface of the outer cylinder 1, and has the following first and second supports. formed independently of the body. Reference numerals 12 and 13 denote first and second supports that support the perforated plate 5 at the lower ends of the outer cylinder 1 and the inner cylinder 2, and are each formed annularly and independently from each other. The outer peripheral surface of the first support body 12 is the outer cylinder 1.
The inner circumferential surface of the second support body 13 is the inner circumferential surface of the inner cylinder 2.
is fixed to the outer circumferential surface of the Further, the areas of the first and second supports 1 and 2 facing the lower surface of the perforated plate 5 are configured to be large enough to allow the perforated plate 5 to be moved independently. Perforated plate 5 is supported by supports 12 and 13
Although placed on the upper surface, the supports 12 and 13 and the perforated plate 5 are not connected to each other, and when the perforated plate 5 is moved upward, or when the perforated plate 5 is held and the support is moved downward. , both parties will automatically leave. The perforated plate 5 is attached to the first and second supports 12 and 13.
The reasons for supporting this are as follows.
リフオーマの立上げ時は、外筒１が熱膨張した
後、内筒２が熱膨張する。従つて、この場合、第
２の支持体１３で目皿５を支持すれば、触媒３の
圧縮破壊が防止できる。この理由は、たとえば上
記とは逆に、第１に支持体１２で支持するように
構成すると（第２の支持体１３が存在しないとい
うことになる）、外筒１が径方向、長手方向に伸
びると触媒３がその体積増加分だけ自重で下りで
くる。しかる後、内筒２が膨張すると、上記自重
で下りてきた触媒３の逃げ場がなくなつて（触媒
３を上昇させるしかない）、触媒３の圧縮破壊が
生じやすい状態になる。 When starting up the re-former, the outer cylinder 1 thermally expands, and then the inner cylinder 2 thermally expands. Therefore, in this case, if the perforated plate 5 is supported by the second support 13, compression destruction of the catalyst 3 can be prevented. The reason for this is that, for example, contrary to the above, if the outer cylinder 1 is configured to be supported first by the support body 12 (which means that the second support body 13 does not exist), the outer cylinder 1 is When it stretches, the catalyst 3 will come down by its own weight by the increased volume. After that, when the inner cylinder 2 expands, there is no place for the catalyst 3, which has descended under its own weight, to escape (there is no choice but to raise the catalyst 3), and the catalyst 3 becomes susceptible to compression failure.
これに対して、第２の支持体１３で目皿５を支
持すれば、内筒２の膨張にともなつて第２の支持
体１３も長手方向へ移動するので、体積増加がは
かられる。従つて、上記自重で下りてきた触媒を
圧縮させることがおこらない。 On the other hand, if the perforated plate 5 is supported by the second support 13, the second support 13 also moves in the longitudinal direction as the inner cylinder 2 expands, so that the volume can be increased. Therefore, the catalyst that has come down due to its own weight is not compressed.
また、リフオーマの立下げ時は、外筒１が先に
縮み、しかる後、内筒２が収縮する。従つて、触
媒３は内・外筒の管壁を摩擦しながら上昇する。
この摩擦エネルギーが触媒３の破壊・変形に消費
されると考えられるので、この場合は摩擦面積が
小さい方が良いので、目皿５は第１の支持体１２
で支持される。 Further, when the re-former is lowered, the outer cylinder 1 contracts first, and then the inner cylinder 2 contracts. Therefore, the catalyst 3 rises while rubbing against the inner and outer tube walls.
It is considered that this frictional energy is consumed in the destruction and deformation of the catalyst 3, so in this case it is better to have a small frictional area, so the perforated plate 5 is attached to the first support 12.
Supported by
第１図に戻つて、上記のように構成されたリフ
オーマにおいて、天然ガスと水蒸気の混合した反
応ガス９は、触媒３を封入した空間部に導かれ、
ここで、バーナ７により加熱されながら水蒸気改
質反応を起こし、水素を多量に含むガスとなり、
内筒２の内周面を通過し、ガス１０としてシエル
８外へ送出される。尚、第１図ないし第３図中に
おいて、４は外筒１と内筒２の間の空間部の径方
向の寸法すなわち、ギヤツプである。 Returning to FIG. 1, in the re-former configured as described above, the reaction gas 9, which is a mixture of natural gas and water vapor, is guided into the space in which the catalyst 3 is enclosed.
Here, a steam reforming reaction occurs while being heated by the burner 7, resulting in a gas containing a large amount of hydrogen,
It passes through the inner circumferential surface of the inner cylinder 2 and is sent out to the outside of the shell 8 as gas 10. In FIGS. 1 to 3, 4 is the radial dimension of the space between the outer cylinder 1 and the inner cylinder 2, that is, the gap.
次に、上記の通り構成された一実施例の作用に
ついて第５図にもとづいて説明する。第５図にお
いて、Ａは触媒反応装置、すなわちリフオーマの
停止時の一つの反応部の状態を説明する図、以下
同じくＢは立上げ時、Ｃは定常運転時、Ｄは立下
げ時、Ｅは停止時の状態を説明する図である。な
お、第５図において、第１図ないし第４図と同一
物には同一の符号を付してある。 Next, the operation of the embodiment configured as described above will be explained based on FIG. 5. In FIG. 5, A is a diagram explaining the state of one reaction section when the catalytic reaction device, that is, the refoamer is stopped; hereafter, B is at startup, C is at steady operation, D is at shutdown, and E is at startup. It is a figure explaining the state at the time of a stop. In FIG. 5, the same parts as in FIGS. 1 to 4 are given the same reference numerals.
まず、第５図Ａの状態において、目皿５は第
１，第２の支持体１２，１３に支持されている。 First, in the state shown in FIG. 5A, the perforated plate 5 is supported by the first and second supports 12 and 13.
次に、第５図Ｂの状態について説明する。 Next, the state shown in FIG. 5B will be explained.
この状態においては、外筒１が熱膨張した後に
内筒２が熱膨張するが、内筒２が長手方向に伸び
るため、第２の支持体１３により目皿５が支持さ
れる状態になり、ギヤツプ４の減少による触媒３
の圧縮を抑えることができる。その後、装置は、
定常状態になり、目皿５は第１，第２の支持体１
２，１３にて支持される（第５図Ｃの状態）。 In this state, the inner cylinder 2 thermally expands after the outer cylinder 1 thermally expands, but since the inner cylinder 2 extends in the longitudinal direction, the perforated plate 5 is supported by the second support 13, Catalyst 3 due to decrease in gap 4
compression can be suppressed. Then the device
A steady state is reached, and the perforated plate 5 is attached to the first and second supports 1.
2 and 13 (state shown in FIG. 5C).
次に、第５図Ｄの状態について説明する。この
状態においては、外筒１が先に縮み、遅れて内筒
２が収縮するが、目皿５が第１の支持体１２によ
つて上方に持ち上げられる。このとき、触媒３は
外筒１、内筒２の管壁を摩擦しながら上昇してい
く。この摩擦エネルギーは触媒の破壊，変形に消
費されるものと考えられるが、この場合、触媒３
が均一に詰まつているならば外筒１および内筒２
の管壁に加わる、触媒３の自重による単位面積当
りの力は、外筒１も内筒２も同じである。したが
つて、摩擦力Ｆは、
Ｆ＝μＳ（ここで、μ：触媒と管壁との摩擦
係数，：単位面積当りの力（高さ方向平均），
Ｓ：摩擦面積）で表わされるが、触媒３は内筒２
の外壁に沿うよう移動されるので、摩擦力が小さ
く、触媒３の破壊が少なくなる。しかる後、装置
が停止されると第５図Ｅの状態に移るが、この場
合は、第５図Ａの状態と同様に目皿５は第１，第
２の支持体１２，１３にて支持される。 Next, the state shown in FIG. 5D will be explained. In this state, the outer cylinder 1 contracts first, and the inner cylinder 2 contracts later, but the perforated plate 5 is lifted upward by the first support 12. At this time, the catalyst 3 rises while rubbing against the tube walls of the outer cylinder 1 and the inner cylinder 2. It is thought that this frictional energy is consumed in the destruction and deformation of the catalyst, but in this case, the catalyst 3
If they are evenly packed, outer cylinder 1 and inner cylinder 2
The force per unit area due to the dead weight of the catalyst 3 that is applied to the tube wall of the outer tube 1 and the inner tube 2 is the same. Therefore, the frictional force F is: F=μS (where μ: coefficient of friction between the catalyst and the tube wall,: force per unit area (average in the height direction),
S: Friction area), the catalyst 3 is the inner cylinder 2
Since the catalyst 3 is moved along the outer wall of the catalyst 3, the frictional force is small and damage to the catalyst 3 is reduced. After that, when the apparatus is stopped, the state shifts to the state shown in FIG. 5E, but in this case, the perforated plate 5 is supported by the first and second supports 12 and 13, similar to the state shown in FIG. 5A. be done.
尚、上記実施例では、外筒，内筒を断面円形状
のもので説明したが、本発明はこれに限定される
ことなく本発明の精神を逸脱しない限りにおいて
断面多角形のものまで含むべきものであることは
むろんである。 In the above embodiments, the outer cylinder and the inner cylinder are circular in cross-section, but the present invention is not limited to this, and may include polygonal cross-sections without departing from the spirit of the invention. Of course it is a thing.
本発明によれば、触媒に作用する圧縮力，摩擦
力を小さくすることができるので、触媒の破壊を
小さくすることができる効果がある。
According to the present invention, since the compressive force and frictional force acting on the catalyst can be reduced, there is an effect that the destruction of the catalyst can be reduced.
このことは触媒の破壊による微細化に起因する
反応ガスの圧力損失増加を抑え、触媒の交換時間
間隔を延長することができるものである。 This suppresses the increase in the pressure loss of the reaction gas due to the fragmentation caused by the destruction of the catalyst, and makes it possible to extend the time interval for replacing the catalyst.
図は本発明の一実施例を示したもので第１図は
触媒反応装置の一例である燃料電池装置のリフオ
ーマの全体断面図、第２図は第１図の−断面
図、第３図は第１図の要部拡大図、第４図は第３
図の−断面図、第５図は本発明の動作説明図
である。
１……外筒、２……内筒、３……触媒、４……
ギヤツプ、５……触媒目皿、６……胴、７……バ
ーナ、８……断熱材、９……反応ガス、１０……
改質ガス、１２……第１の支持体、１３……第２
の支持体。
The drawings show an embodiment of the present invention. Fig. 1 is an overall sectional view of a re-former of a fuel cell device which is an example of a catalytic reaction device, Fig. 2 is a - sectional view of Fig. 1, and Fig. 3 is Figure 1 is an enlarged view of the main parts, Figure 4 is the 3rd
The cross-sectional view shown in FIG. 5 is an explanatory diagram of the operation of the present invention. 1... Outer cylinder, 2... Inner cylinder, 3... Catalyst, 4...
Gap, 5... Catalyst plate, 6... Body, 7... Burner, 8... Insulation material, 9... Reactant gas, 10...
Reformed gas, 12...first support, 13...second
support.
Claims (1)
記内筒の外周面と前記外筒の内周面とで形成され
る空間部に封入された触媒、前記触媒を前記内外
筒の下端で保持する触媒保持手段を具え、被反応
ガスを前記触媒を通過させるように導入させ、前
記触媒を通過させた反応ガスを、前記内筒を介し
て外部へ導出するように構成した触媒反応装置に
おいて、前記内筒下端部と外筒下端部は、軸方向
に相対的に移動可能に配置され、前記触媒保持手
段を皿部と、外皿部を前記外筒で保持する第１の
支持体と、前記内筒で保持する第２の支持体とで
構成し、前記皿部を前記第１，第２の支持体と独
立に設け、前記第１の支持体を前記外筒の内周面
に、前記第２の支持体を前記内筒の外周面に前記
第１の支持体と独立に固着せしめ、前記皿部を前
記第１，第２の支持体に離脱可能に載置したこと
を特徴とする触媒反応装置。 ２ 前記内筒、前記外筒が断面円形状に形成され
ている特許請求の範囲第１項記載の触媒反応装
置。 ３ 前記外筒の一端は開口し、他端は閉塞し、前
記内筒の一端は、前記反応ガスを導出する手段に
連結し、他端を前記外筒の閉塞部近傍に開口して
なる特許請求の範囲第１項記載の触媒反応装置。[Scope of Claims] 1. an inner cylinder, an outer cylinder arranged concentrically with the inner cylinder, a catalyst sealed in a space formed by an outer peripheral surface of the inner cylinder and an inner peripheral surface of the outer cylinder; A catalyst holding means is provided for holding the catalyst at the lower ends of the inner and outer cylinders, the reactant gas is introduced so as to pass through the catalyst, and the reaction gas that has passed through the catalyst is guided to the outside via the inner cylinder. In the catalytic reaction device, the lower end of the inner cylinder and the lower end of the outer cylinder are arranged so as to be movable relative to each other in the axial direction, and the catalyst holding means is connected to the dish part, and the outer cylinder part is connected to the outer cylinder. a first support body held by the inner cylinder, and a second support body held by the inner cylinder, the dish portion is provided independently of the first and second support bodies, and the first support body to the inner peripheral surface of the outer cylinder, the second support to the outer peripheral surface of the inner cylinder independently of the first support, and the dish part to the first and second supports. A catalytic reaction device characterized in that it is mounted in a removable manner. 2. The catalytic reaction device according to claim 1, wherein the inner cylinder and the outer cylinder are formed to have a circular cross section. 3. A patent in which one end of the outer cylinder is open and the other end is closed, one end of the inner cylinder is connected to a means for deriving the reaction gas, and the other end is opened near the closed part of the outer cylinder. A catalytic reaction apparatus according to claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59234960A JPS61114730A (en) | 1984-11-09 | 1984-11-09 | Catalytic reaction apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59234960A JPS61114730A (en) | 1984-11-09 | 1984-11-09 | Catalytic reaction apparatus |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3007556A Division JPH0685866B2 (en) | 1991-01-25 | 1991-01-25 | Catalytic reactor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61114730A JPS61114730A (en) | 1986-06-02 |
| JPH0365228B2 true JPH0365228B2 (en) | 1991-10-11 |
Family
ID=16978949
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59234960A Granted JPS61114730A (en) | 1984-11-09 | 1984-11-09 | Catalytic reaction apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61114730A (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2712766B2 (en) * | 1990-06-18 | 1998-02-16 | 富士電機株式会社 | Fuel reformer |
| JP2005089209A (en) * | 2003-09-12 | 2005-04-07 | Nippon Oil Corp | Reforming equipment, and fuel cell system |
| JP4731943B2 (en) * | 2005-02-16 | 2011-07-27 | 東京瓦斯株式会社 | Annular reactor, manufacturing method thereof and sealing method |
| JP5154993B2 (en) * | 2007-09-13 | 2013-02-27 | Ｊｘ日鉱日石エネルギー株式会社 | Reformer |
| JP5250885B2 (en) * | 2008-03-05 | 2013-07-31 | アイシン精機株式会社 | Gas treatment device for fuel cell |
| JP4657351B2 (en) * | 2009-03-31 | 2011-03-23 | 株式会社荏原製作所 | Reformer |
| JP5940759B2 (en) * | 2010-04-02 | 2016-06-29 | 株式会社Ｔｉ | Hydrogen generator for generating hydrogen from water |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS503267A (en) * | 1973-05-11 | 1975-01-14 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58137440U (en) * | 1982-03-10 | 1983-09-16 | バブコツク日立株式会社 | Reformer for fuel cells |
-
1984
- 1984-11-09 JP JP59234960A patent/JPS61114730A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS503267A (en) * | 1973-05-11 | 1975-01-14 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61114730A (en) | 1986-06-02 |
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