JP3358956B2 - Solid electrolyte fuel cell module - Google Patents
Solid electrolyte fuel cell moduleInfo
- Publication number
- JP3358956B2 JP3358956B2 JP25802696A JP25802696A JP3358956B2 JP 3358956 B2 JP3358956 B2 JP 3358956B2 JP 25802696 A JP25802696 A JP 25802696A JP 25802696 A JP25802696 A JP 25802696A JP 3358956 B2 JP3358956 B2 JP 3358956B2
- Authority
- JP
- Japan
- Prior art keywords
- fuel gas
- main body
- gas
- body container
- fuel
- 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
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
- 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
- Fuel Cell (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、固体電解質燃料電
池モジュールに関し、特に、水蒸気と炭化水素ガスとを
混合した燃料ガスを利用する場合に適用すると有効なも
のである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a solid oxide fuel cell module, and more particularly to a solid electrolyte fuel cell module which is effective when applied to a case where a fuel gas obtained by mixing steam and a hydrocarbon gas is used.
【０００２】[0002]
【従来の技術】固体電解質燃料電池は、固体電解質を燃
料ガス極と酸化ガス極とで挟んだセルが高温に保持さ
れ、上記燃料ガス極に燃料ガスが供給されると共に、上
記酸化ガス極に酸化ガスが供給されることにより、これ
らガスが上記セルで電気化学反応を起こして電力が得ら
れるようになっている。2. Description of the Related Art In a solid electrolyte fuel cell, a cell in which a solid electrolyte is sandwiched between a fuel gas electrode and an oxidizing gas electrode is maintained at a high temperature, a fuel gas is supplied to the fuel gas electrode and a fuel gas is supplied to the oxidizing gas electrode. When the oxidizing gas is supplied, the gas causes an electrochemical reaction in the cell to generate electric power.
【０００３】一般に、上記酸化ガスには、空気などが用
いられ、燃料ガスには、水蒸気を天然ガス（都市ガス）
などのような炭化水素ガスと反応させて改質したガスな
どが用いられている。つまり、空気中の酸素を酸化ガス
として利用すると共に、水蒸気を炭化水素ガスと反応さ
せて生じた水素ガスを燃料ガスとして利用するのであ
る。Generally, air or the like is used as the oxidizing gas, and steam is used as natural gas (city gas) as fuel gas.
Gases reformed by reacting with a hydrocarbon gas such as are used. That is, oxygen in the air is used as an oxidizing gas, and hydrogen gas generated by reacting water vapor with a hydrocarbon gas is used as a fuel gas.
【０００４】このような水蒸気の改質反応には、熱エネ
ルギを加える必要があるため、燃料ガスに水蒸気を用い
る場合には、水蒸気と天然ガスとを改質装置で加熱して
上記改質反応を生じさせてから燃料電池の本体容器の内
部に供給するようにしている（外部改質法）。[0004] Since heat energy needs to be added to such a steam reforming reaction, when steam is used as the fuel gas, the steam and the natural gas are heated by a reformer to perform the reforming reaction. Is generated and then supplied to the inside of the main body of the fuel cell (external reforming method).
【０００５】[0005]
【発明が解決しようとする課題】前述したような外部改
質法では、改質装置を用いて水蒸気を改質することか
ら、当該改質装置用の熱源を別に用意しなければなら
ず、システム全体としての熱サイクルに無駄を生じてし
まうという問題があった。In the external reforming method as described above, since steam is reformed by using a reforming apparatus, a heat source for the reforming apparatus must be separately prepared. There has been a problem that the entire heat cycle is wasted.
【０００６】そこで、水蒸気と天然ガスとを混合した燃
料ガスを燃料電池の本体容器の内部に送給し、発電時の
熱を熱源として用いると共にＮｉ、Ｒｕなどの成分を含
有する上記燃料ガス極を触媒として用いることにより、
当該燃料ガス極で上記改質反応を生じさせ、システム全
体としての熱サイクルの合理化を図ることが考えられる
（内部改質法）。Therefore, a fuel gas in which steam and natural gas are mixed is fed into the main body of the fuel cell, and heat at the time of power generation is used as a heat source, and the fuel gas electrode containing components such as Ni and Ru is used. By using as a catalyst,
It is conceivable to cause the above-mentioned reforming reaction at the fuel gas electrode to rationalize the heat cycle of the entire system (internal reforming method).
【０００７】しかしながら、上記改質反応を燃料ガス極
で生じさせるようにすると、固体電解質燃料電池の作動
温度が高い（８００〜１０００℃）ため、燃料ガス極に
カーボンが付着して（水蒸気と天然ガス中のカーボン
（Ｃ）とのモル比であるＳ／Ｃが３以上であっても付着
する）、電極としての性能が著しく劣化してしまい、長
期間の連続運転が困難となってしまう。However, if the above-mentioned reforming reaction is caused to occur at the fuel gas electrode, the solid electrolyte fuel cell has a high operating temperature (800 to 1000 ° C.), so that carbon adheres to the fuel gas electrode (steam and natural gas). Even when the S / C, which is the molar ratio with carbon (C) in the gas, is 3 or more, it adheres), the performance as an electrode is significantly deteriorated, and continuous operation for a long time becomes difficult.
【０００８】また、燃料電池の本体容器が大容量である
と、本体容器内の温度が外部寄りほど低く、言い換えれ
ば、内部寄りほど高くなる分布となってしまい、本体容
器の外部寄りに配設されたセルほど発電性能を十分に発
揮することができなくなってしまうという問題があっ
た。Further, if the main body of the fuel cell has a large capacity, the temperature inside the main body becomes lower toward the outside, in other words, the distribution becomes higher toward the inside. There has been a problem that the power generation performance cannot be sufficiently exhibited as much as the used cell.
【０００９】このようなことから、本発明は、長期間の
連続運転を可能にしながらもシステム全体としての熱サ
イクルの合理化を図ることができると共に、本体容器内
での位置に左右されることなくセルの発電性能を十分に
発現させることができる固体電解質燃料電池モジュール
を提供することを目的とした。From the above, the present invention can streamline the heat cycle of the entire system while enabling continuous operation for a long period of time, and is not affected by the position in the main container. It is an object of the present invention to provide a solid oxide fuel cell module capable of sufficiently exhibiting the power generation performance of a cell.
【００１０】[0010]
【課題を解決するための手段】前述した課題を解決する
ための、本発明による固体電解質燃料電池モジュール
は、所定の温度に昇温可能な本体容器と、前記本体容器
の内部に複数配設され、燃料ガス極と酸化ガス極とで固
体電解質を挟んでなるセルの上記燃料ガス極を基体管の
外面に当接させるように当該セルを当該基体管の外面に
複数設けたセルスタックと、前記本体容器の内部に酸化
ガスを供給する酸化ガス第一供給手段と、前記本体容器
内に設けられ、前記酸化ガス第一供給手段からの前記酸
化ガスを前記セルスタックの前記基体管の外側に供給す
る酸化ガス第二供給手段と、前記本体容器の内部に水蒸
気と炭化水素ガスとを混合した燃料ガスを供給する燃料
ガス第一供給手段と、前記本体容器内に設けられ、前記
燃料ガス第一供給手段からの前記燃料ガスを前記セルス
タックの前記基体管の内側に供給する燃料ガス第二供給
手段とを備えてなる固体電解質燃料電池モジュールであ
って、前記燃料ガスの改質反応を促進させる触媒を前記
セルスタックの前記基体管の内面または前記燃料ガス第
二供給手段の少なくとも一方に設けると共に、前記触媒
が前記本体容器内の温度の低い箇所よりも温度の高い箇
所に位置するほど多いことを特徴とする。In order to solve the above-mentioned problems, a solid electrolyte fuel cell module according to the present invention is provided with a main body container which can be heated to a predetermined temperature, and a plurality of the main body containers arranged inside the main body container. A cell stack in which a plurality of such cells are provided on the outer surface of the base tube so that the fuel gas electrode of the cell sandwiching the solid electrolyte between the fuel gas electrode and the oxidizing gas electrode is brought into contact with the outer surface of the base tube; An oxidizing gas first supply unit for supplying an oxidizing gas into the main body container; and an oxidizing gas provided in the main body container and supplying the oxidizing gas from the oxidizing gas first supply unit to the outside of the base tube of the cell stack. An oxidizing gas second supply unit, a fuel gas first supply unit for supplying a fuel gas obtained by mixing steam and a hydrocarbon gas into the main body container, and a fuel gas first supply unit provided in the main body container. Supplier And a fuel gas second supply means for supplying the fuel gas from the inside to the inside of the base tube of the cell stack, wherein a catalyst for promoting a reforming reaction of the fuel gas is provided. on at least one provided Rutotomoni of the interior or the fuel gas second supply means of the substrate tube of the cell stack, the catalyst
Are higher in temperature than the lower temperature in the main body container.
It is characterized in that there are many as it is located in a place .
【００１１】[0011]
【００１２】[0012]
【発明の実施の形態】本発明による固体電解質燃料電池
モジュールの実施の形態を図１を用いて説明する。な
お、図１は、その概略構造図である。DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a solid oxide fuel cell module according to the present invention will be described with reference to FIG. FIG. 1 is a schematic structural diagram.
【００１３】図１に示すように、本体容器１の内部に
は、下部管板２と上部管板３とが取り付けられており、
当該本体容器１の内部は、上記管板２，３により、燃料
ガス供給室１ａ、燃料ガス排出室１ｂ、発電室１ｃに区
分けされている。本体容器１の発電室１ｃの内部には、
燃料ガス極と酸化ガス極とで固体電解質を挟んでなるセ
ルの燃料ガス極を基体管の外面に当接させるように当該
セルを当該基体管の外面に複数設けたセルスタック４が
複数設けられており、これらセルスタック４は、その下
端が閉塞する一方、その上端が開口し、内部が前記燃料
ガス排出室１ｂと連通するように上記下部管板２を貫通
して当該管板２に支持されている。これらセルスタック
４の内部には、燃料ガス導入管５がそれぞれ挿入されて
おり、これら燃料ガス導入管５は、その上端が前記燃料
ガス供給室１ａと連通するように前記上部管板３を貫通
して当該管板３に支持されている。As shown in FIG. 1, a lower tube sheet 2 and an upper tube sheet 3 are mounted inside a main body container 1.
The inside of the main body container 1 is divided by the tube sheets 2 and 3 into a fuel gas supply chamber 1a, a fuel gas discharge chamber 1b, and a power generation chamber 1c. Inside the power generation chamber 1c of the main body container 1,
A plurality of cell stacks 4 are provided in which a plurality of the cells are provided on the outer surface of the base tube so that the fuel gas electrode of the cell having the solid electrolyte sandwiched between the fuel gas electrode and the oxidizing gas electrode is brought into contact with the outer surface of the base tube. These cell stacks 4 are closed at the lower ends, open at the upper ends, and penetrate through the lower tube sheet 2 so as to communicate with the fuel gas discharge chamber 1b, and are supported by the tube sheets 2. Have been. Fuel gas introduction pipes 5 are inserted into the cell stacks 4, respectively, and these fuel gas introduction pipes 5 penetrate the upper tube plate 3 so that the upper ends thereof communicate with the fuel gas supply chamber 1a. And supported by the tube sheet 3.
【００１４】前記本体容器１の下部には、空気などの酸
化ガスを供給する酸化ガス供給管７が熱交換器６を介し
て連結されており、当該酸化ガス供給管７を流通してき
た酸化ガス２１は、熱交換器６で予熱されてから本体容
器１の前記発電室１ｃ内に供給されるようになってい
る。また、本体容器１の発電室１ｃの内部には、酸化ガ
ス排出管８が設けられており、当該酸化ガス排出管８
は、上記熱交換器６を介して外部排出管９に連結されて
いる。つまり、前記熱交換器６から本体容器１の発電室
１ｃの内部に供給された酸化ガス２１は、前記セルスタ
ック４で発電に供された後、上記酸化ガス排出管８に流
入し、前記熱交換器６で熱を回収されてから外部排出管
９を介して外部へ排出されるようになっているのであ
る。An oxidizing gas supply pipe 7 for supplying an oxidizing gas such as air is connected to a lower portion of the main body container 1 through a heat exchanger 6, and the oxidizing gas flowing through the oxidizing gas supplying pipe 7 is connected thereto. Numeral 21 is supplied into the power generation chamber 1c of the main body container 1 after being preheated by the heat exchanger 6. Further, an oxidizing gas discharge pipe 8 is provided inside the power generation chamber 1c of the main body container 1, and the oxidizing gas discharge pipe 8 is provided.
Is connected to the external discharge pipe 9 via the heat exchanger 6. That is, the oxidizing gas 21 supplied from the heat exchanger 6 to the inside of the power generation chamber 1c of the main body container 1 is supplied to the cell stack 4 for power generation, and then flows into the oxidizing gas discharge pipe 8, and The heat is recovered by the exchanger 6 and then discharged to the outside through the external discharge pipe 9.
【００１５】前記本体容器１の上部には、前記燃料ガス
供給室１ａへ水蒸気と天然ガス（都市ガス）などのよう
な炭化水素ガスとを混合した燃料ガス２２を送給する燃
料ガス供給管１０が連結されている。本体容器１の前記
燃料ガス排出室１ｂには、燃料ガス排出管１１の基端が
前記上部管板３を貫通して連結されており、当該燃料ガ
ス排出管１１は、その先端が本体容器１を貫通して外部
へ連絡している。A fuel gas supply pipe 10 for supplying a fuel gas 22 containing a mixture of steam and a hydrocarbon gas such as natural gas (city gas) to the fuel gas supply chamber 1a is provided above the main body container 1. Are connected. A base end of a fuel gas discharge pipe 11 is connected to the fuel gas discharge chamber 1b of the main body container 1 through the upper tube plate 3, and a tip of the fuel gas discharge pipe 11 has a front end thereof. Through to the outside.
【００１６】前記燃料ガス導入管５の上端の開口部に
は、燃料ガス２２の改質反応を促進させる触媒（Ｎｉ、
Ｒｕなどの成分を含有したもの）を担持したプレリフォ
ーマ１２がそれぞれ設けられており、当該プレリフォー
マ１２は、本体容器１の外部寄りに位置するものほど触
媒の担持量が少なくなるよう、言い換えれば、本体容器
１の内部寄りに位置するものほど触媒の担持量が多くな
るよう、つまり、本体容器１内の温度の高い箇所に位置
するものほど触媒量が多くなるように調整されている。An opening at the upper end of the fuel gas inlet pipe 5 has a catalyst (Ni, Ni) for promoting the reforming reaction of the fuel gas 22.
Pre-reformers 12 each carrying a component such as Ru) are provided, and the pre-reformers 12 are positioned closer to the outside of the main container 1 so that the amount of the supported catalyst becomes smaller, in other words, The amount of the catalyst carried is adjusted so that the closer to the inside of the main body container 1, the larger the amount of the catalyst carried, that is, the higher the temperature in the main body container 1, the larger the amount of the catalyst.
【００１７】このような本実施の形態においては、熱交
換器６、酸化ガス供給管７などにより酸化ガス第一供給
手段を構成し、下部管板２などにより酸化ガス第二供給
手段を構成し、熱交換器６、酸化ガス排出管８、外部排
出管９などにより酸化ガス排出手段を構成する一方、燃
料ガス供給管１０などにより燃料ガス第一供給手段を構
成し、上部管板３、燃料ガス導入管５などにより燃料ガ
ス第二供給手段を構成し、下部管板２、上部管板３、燃
料ガス排出管１１などにより燃料ガス排出手段を構成し
ている。なお、図中、１３は断熱材である。In this embodiment, the heat exchanger 6, the oxidizing gas supply pipe 7 and the like constitute oxidizing gas first supplying means, and the lower tube sheet 2 and the like constitute oxidizing gas second supplying means. , The heat exchanger 6, the oxidizing gas discharge pipe 8, the external discharge pipe 9 and the like constitute oxidizing gas discharging means, while the fuel gas supply pipe 10 and the like constitute fuel gas first supplying means. The fuel gas second supply means is constituted by the gas introduction pipe 5 and the like, and the fuel gas discharge means is constituted by the lower tube sheet 2, the upper tube sheet 3, the fuel gas discharge pipe 11, and the like. In the drawing, reference numeral 13 denotes a heat insulating material.
【００１８】このような固体電解質燃料電池モジュール
の作用を次に説明する。本体容器１内を所定の温度（約
８００〜１０００℃）に昇温すると共に、酸化ガス供給
管７から熱交換器６を介して予熱しながら本体容器１の
発電室１ｃ内に酸化ガス２１を供給する一方、燃料ガス
供給管１０から本体容器１の燃料ガス供給室１ａ内に燃
料ガス２２を供給すると、酸化ガス２１は、加熱されな
がらセルスタック４の外面側、すなわち、酸化ガス極に
供給されて発電に供された後、酸化ガス排出管８へ流入
し、熱交換器６で熱を回収されてから外部排出管９を介
して外部へ排出される一方、燃料ガス２２は、発電時の
熱を熱源として加熱されながら前記プレリフォーマ１２
に接触し、水素（Ｈ2 ）と一酸化炭素（ＣＯ）とに改質
されながら燃料ガス導入管５に流入し、前記セルスタッ
ク４の内面側、すなわち、燃料ガス極に供給されて発電
に供された後、前記燃料ガス排出室１ｂを介して燃料ガ
ス排出管１１から外部に排出される。The operation of the solid electrolyte fuel cell module will be described below. The temperature of the inside of the main body container 1 is raised to a predetermined temperature (about 800 to 1000 ° C.), and the oxidizing gas 21 is supplied into the power generation chamber 1 c of the main body container 1 while preheating from the oxidizing gas supply pipe 7 via the heat exchanger 6. On the other hand, when the fuel gas 22 is supplied from the fuel gas supply pipe 10 into the fuel gas supply chamber 1a of the main body container 1, the oxidizing gas 21 is supplied to the outer surface side of the cell stack 4, that is, the oxidizing gas electrode while being heated. After being subjected to power generation and flowing into the oxidizing gas discharge pipe 8, heat is recovered by the heat exchanger 6 and then discharged to the outside via the external discharge pipe 9, while the fuel gas 22 is discharged during power generation. The pre-reformer 12 is heated while using the heat of
While flowing into the fuel gas inlet pipe 5 while being reformed into hydrogen (H 2 ) and carbon monoxide (CO), and supplied to the inner surface of the cell stack 4, that is, to the fuel gas electrode to generate power. After being supplied, the fuel gas is discharged outside from the fuel gas discharge pipe 11 through the fuel gas discharge chamber 1b.
【００１９】つまり、セルの燃料ガス極を利用せずに本
体容器１の内部で水蒸気改質反応を行うようにしたので
ある。したがって、発電時の熱を熱源として利用した水
蒸気の改質反応を行いながらも燃料ガス極へのカーボン
の付着を防止することができるので、長期間の連続運転
を可能にしながらシステム全体としての熱サイクルの合
理化を図ることができる。また、改質装置を個別に設け
る必要がないので、システムの全体構成を簡略化するこ
とができ、コストダウンを図ることができる。That is, the steam reforming reaction is performed inside the main body container 1 without using the fuel gas electrode of the cell. Therefore, it is possible to prevent carbon from adhering to the fuel gas electrode while performing a steam reforming reaction using heat generated during power generation as a heat source. The cycle can be streamlined. Further, since there is no need to provide a separate reformer, the overall configuration of the system can be simplified, and the cost can be reduced.
【００２０】一方、前記プレリフォーマ１２は、前述し
たように、本体容器１内の温度の高い箇所に位置するも
のほど触媒の量が多く（例えば、改質率が５０〜８０％
となる量）なっている、言い換えれば、本体容器１内の
温度の低い箇所に位置するものほど触媒の量が少なく
（例えば、改質率が２０〜５０％となる量）なっている
ので、温度の高い箇所に位置するものほど熱エネルギを
多く消費する、すなわち、温度を下げるように作用す
る。On the other hand, in the pre-reformer 12, as described above, the higher the temperature in the main body container 1, the larger the amount of the catalyst (for example, the reforming rate is 50 to 80%).
In other words, the lower the temperature in the main body container 1 is, the smaller the amount of the catalyst is (for example, the amount at which the reforming rate becomes 20 to 50%), The higher the temperature, the more heat energy is consumed, that is, it acts to lower the temperature.
【００２１】このため、図２に示すように、本体容器１
の発電室１ｃ内は、温度がほぼ均一となるような分布と
なる。したがって、ほとんどのセルスタック４を発電上
限温度近傍で運転することができるようになるので、本
体容器１の発電室１ｃ内の位置に左右されることなくセ
ルの発電性能を十分に発現させることができ、出力を大
幅に向上させることができる。For this reason, as shown in FIG.
Has a distribution such that the temperature is substantially uniform. Therefore, most of the cell stacks 4 can be operated in the vicinity of the power generation upper limit temperature, so that the power generation performance of the cells can be sufficiently exhibited without being affected by the position of the main body container 1 in the power generation chamber 1c. And output can be greatly improved.
【００２２】なお、本実施の形態では、プレリフォーマ
１２を燃料ガス導入管５の上端の開口部に設けるように
したが、例えば、燃料ガス導入管５の下端の開口部に設
けたり、図３に示すように、セルスタック４の内面や燃
料ガス導入管５の外面にプレリフォーマ１２を敷き詰め
るようにして設けることも可能である。なお、図３中、
４ａは基体管、４ｂはセルである。In the present embodiment, the pre-reformer 12 is provided at the opening at the upper end of the fuel gas introduction pipe 5, but, for example, it is provided at the opening at the lower end of the fuel gas introduction pipe 5, or as shown in FIG. As shown in (1), the pre-reformer 12 can be provided so as to cover the inner surface of the cell stack 4 and the outer surface of the fuel gas introduction pipe 5. In FIG. 3,
4a is a base tube, and 4b is a cell.
【００２３】[0023]
【発明の効果】本発明の固体電解質燃料電池モジュール
によれば、次のような効果を得ることができる。 （１）発電時の熱を熱源として利用した水蒸気の改質反
応を行いながらも燃料ガス極へのカーボンの付着を防止
することができるので、長期間の連続運転を可能にしな
がらシステム全体としての熱サイクルの合理化を図るこ
とができる。 （２）本体容器内の温度をほぼ均一にすることができる
ので、ほとんどのセルスタックを発電上限温度近傍で運
転することができ、本体容器内の位置に左右されること
なくセルの発電性能を十分に発現させ、出力を大幅に向
上させることができる。According to the solid oxide fuel cell module of the present invention, the following effects can be obtained. (1) Since it is possible to prevent carbon from adhering to the fuel gas electrode while performing a steam reforming reaction using heat generated during power generation as a heat source, the system as a whole can be operated continuously for a long period of time. The thermal cycle can be rationalized. (2) Since the temperature inside the main body container can be made substantially uniform, most cell stacks can be operated near the power generation upper limit temperature, and the power generation performance of the cell can be improved without being affected by the position inside the main body container. Sufficient expression can be achieved, and the output can be greatly improved.
【図１】本発明による固体電解質燃料電池モジュールの
実施の形態の概略構造図である。FIG. 1 is a schematic structural diagram of an embodiment of a solid oxide fuel cell module according to the present invention.
【図２】本体容器の発電室内の温度分布を表すグラフで
ある。FIG. 2 is a graph showing a temperature distribution in a power generation chamber of a main body container.
【図３】本発明による固体電解質燃料電池モジュールの
他の実施の形態の主要部の概略構造図である。FIG. 3 is a schematic structural view of a main part of another embodiment of a solid oxide fuel cell module according to the present invention.
１ 本体容器 １ａ 燃料ガス供給室 １ｂ 燃料ガス排出室 １ｃ 発電室 ２ 下部管板 ３ 上部管板 ４ セルスタック ４ａ 基体管 ４ｂ セル ５ 燃料ガス導入管 ６ 熱交換器 ７ 酸化ガス供給管 ８ 酸化ガス排出管 ９ 外部排出管 １０ 燃料ガス供給管 １１ 燃料ガス排出管 １２ プレリフォーマ １３ 断熱材 ２１ 酸化ガス ２２ 燃料ガス DESCRIPTION OF SYMBOLS 1 Main body container 1a Fuel gas supply room 1b Fuel gas discharge room 1c Power generation room 2 Lower tube plate 3 Upper tube plate 4 Cell stack 4a Base tube 4b Cell 5 Fuel gas introduction tube 6 Heat exchanger 7 Oxidation gas supply tube 8 Oxidation gas discharge Pipe 9 external discharge pipe 10 fuel gas supply pipe 11 fuel gas discharge pipe 12 pre-reformer 13 heat insulating material 21 oxidizing gas 22 fuel gas
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 平６−76853（ＪＰ，Ａ) 特開 平７−45293（ＪＰ，Ａ) 特開 昭63−207054（ＪＰ，Ａ) 特開 昭60−32255（ＪＰ，Ａ) (58)調査した分野(Int.Cl.7，ＤＢ名) H01M 8/02,8/12,8/24 ──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-6-76853 (JP, A) JP-A-7-45293 (JP, A) JP-A-63-207054 (JP, A) JP-A-60-1985 32255 (JP, A) (58) Field surveyed (Int. Cl. 7 , DB name) H01M 8/02, 8/12, 8/24
Claims (1)
ガス極とで固体電解質を挟んでなるセルの上記燃料ガス
極を基体管の外面に当接させるように当該セルを当該基
体管の外面に複数設けたセルスタックと、 前記本体容器の内部に酸化ガスを供給する酸化ガス第一
供給手段と、 前記本体容器内に設けられ、前記酸化ガス第一供給手段
からの前記酸化ガスを前記セルスタックの前記基体管の
外側に供給する酸化ガス第二供給手段と、 前記本体容器の内部に水蒸気と炭化水素ガスとを混合し
た燃料ガスを供給する燃料ガス第一供給手段と、 前記本体容器内に設けられ、前記燃料ガス第一供給手段
からの前記燃料ガスを前記セルスタックの前記基体管の
内側に供給する燃料ガス第二供給手段とを備えてなる固
体電解質燃料電池モジュールであって、 前記燃料ガスの改質反応を促進させる触媒を前記セルス
タックの前記基体管の内面または前記燃料ガス第二供給
手段の少なくとも一方に設けると共に、 前記触媒が前記本体容器内の温度の低い箇所よりも温度
の高い箇所に位置するほど多い ことを特徴とする固体電
解質燃料電池モジュール。1. A fuel cell comprising: a main body container which can be heated to a predetermined temperature; and a plurality of fuel gas electrodes provided in the main body container, wherein a fuel gas electrode and an oxidizing gas electrode sandwich a solid electrolyte therebetween. A cell stack in which a plurality of the cells are provided on the outer surface of the base tube so as to contact the outer surface of the base tube; an oxidizing gas first supply unit for supplying an oxidizing gas to the inside of the main body container; An oxidizing gas second supply unit provided to supply the oxidizing gas from the oxidizing gas first supplying unit to the outside of the base tube of the cell stack; and mixing water vapor and a hydrocarbon gas inside the main body container. A fuel gas first supply unit for supplying the fuel gas, wherein the fuel gas is provided in the main body container and supplies the fuel gas from the fuel gas first supply unit to the inside of the base tube of the cell stack. Two supply means A solid electrolyte fuel cell module consisting comprise, providing a catalyst for promoting the reforming reaction of the fuel gas on at least one of the inner or the fuel gas second supply means of the substrate tube of the cell stack Rutotomoni, The temperature of the catalyst is lower than that of a lower temperature portion in the main body container.
A solid electrolyte fuel cell module, characterized in that the higher the position, the higher the position .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25802696A JP3358956B2 (en) | 1996-09-30 | 1996-09-30 | Solid electrolyte fuel cell module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25802696A JP3358956B2 (en) | 1996-09-30 | 1996-09-30 | Solid electrolyte fuel cell module |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH10106592A JPH10106592A (en) | 1998-04-24 |
| JP3358956B2 true JP3358956B2 (en) | 2002-12-24 |
Family
ID=17314508
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP25802696A Expired - Fee Related JP3358956B2 (en) | 1996-09-30 | 1996-09-30 | Solid electrolyte fuel cell module |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3358956B2 (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003086226A (en) * | 2001-09-12 | 2003-03-20 | Mitsubishi Heavy Ind Ltd | Fuel cell system |
| JP5312419B2 (en) * | 2003-11-28 | 2013-10-09 | 京セラ株式会社 | Fuel cell |
| JP4789451B2 (en) * | 2003-11-28 | 2011-10-12 | 京セラ株式会社 | Fuel cell |
| KR100570752B1 (en) * | 2004-02-26 | 2006-04-12 | 삼성에스디아이 주식회사 | Reformer for fuel cell system and fuel cell system having thereof |
| JP4965066B2 (en) * | 2004-08-19 | 2012-07-04 | 株式会社日立製作所 | Fuel cell |
| JP4652041B2 (en) * | 2004-12-16 | 2011-03-16 | 東京瓦斯株式会社 | Horizontally striped solid oxide fuel cell bundle |
| JP4917295B2 (en) * | 2005-10-26 | 2012-04-18 | 株式会社日立製作所 | Solid oxide fuel cell power generation system |
-
1996
- 1996-09-30 JP JP25802696A patent/JP3358956B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH10106592A (en) | 1998-04-24 |
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