JP3407747B2 - Fuel cell power generator with moisture separator - Google Patents
Fuel cell power generator with moisture separatorInfo
- Publication number
- JP3407747B2 JP3407747B2 JP16051292A JP16051292A JP3407747B2 JP 3407747 B2 JP3407747 B2 JP 3407747B2 JP 16051292 A JP16051292 A JP 16051292A JP 16051292 A JP16051292 A JP 16051292A JP 3407747 B2 JP3407747 B2 JP 3407747B2
- Authority
- JP
- Japan
- Prior art keywords
- gas
- exhaust gas
- water
- fuel cell
- container
- 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
-
- 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
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04082—Arrangements for control of reactant parameters, e.g. pressure or concentration
- H01M8/04089—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants
- H01M8/04119—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants with simultaneous supply or evacuation of electrolyte; Humidifying or dehumidifying
-
- 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
-
- 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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、改質器の排ガスか
ら水蒸気を凝縮して分離する水分分離器を備えた燃料電
池発電装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fuel cell power generator equipped with a water separator for condensing and separating water vapor from exhaust gas from a reformer.
【０００２】[0002]
【従来の技術】溶融炭酸塩型燃料電池は、高効率、かつ
環境への影響が少ないなど、従来の発電装置にはない特
徴を有しており、水力・火力・原子力に続く発電システ
ムとして注目を集め、現在世界各国で鋭意研究開発が行
われている。特に天然ガスを燃料とする溶融炭酸塩型燃
料電池を用いた発電設備は、都市部のビルやマンション
等に分散して設置し、都市ガスを燃料として発電と冷暖
房を行うことにより、従来の送電に伴うロスが大幅に低
減でき、かつ８０％以上の熱効率を発揮できるシステム
として脚光を浴びている。2. Description of the Related Art Molten carbonate fuel cells have characteristics that conventional power generators do not have, such as high efficiency and little impact on the environment, and they are attracting attention as a power generation system following hydropower, thermal power, and nuclear power. Is currently being researched and developed all over the world. In particular, power generation facilities that use molten carbonate fuel cells that use natural gas as fuel are distributed and installed in buildings and condominiums in urban areas. It is in the limelight as a system that can significantly reduce the loss associated with the above and can exhibit a thermal efficiency of 80% or more.
【０００３】かかる発電設備は、改質器と燃料電池を備
え、改質器により天然ガスを水素を含むアノードガスに
改質し、このアノードガスと酸素を含むカソードガスと
から燃料電池により発電し、その余熱により温水を製造
する。この燃料電池内での主な電池反応は、Ｈ2 ＋ＣＯ
3 2-→Ｈ2 Ｏ＋ＣＯ2 ＋２ｅ のアノード反応と、1/2
Ｏ2 ＋ＣＯ2 ＋２ｅ →ＣＯ3 2- のカソード反応であ
り、全体としては水素（Ｈ2 ）が水（Ｈ2 Ｏ）に変わる
反応である。従って、本質的に排ガスはクリーンであ
り、環境への影響は極めて少ない。Such power generation equipment comprises a reformer and a fuel cell. The reformer reforms natural gas into an anode gas containing hydrogen, and the fuel cell generates electricity from the anode gas and the cathode gas containing oxygen. , Hot water is produced by the residual heat. The main cell reaction in this fuel cell is H 2 + CO
3 2- → H 2 O + CO 2 + 2e anode reaction, 1/2
This is a cathode reaction of O 2 + CO 2 + 2e → CO 3 2- , and is a reaction in which hydrogen (H 2 ) is changed to water (H 2 O) as a whole. Therefore, the flue gas is essentially clean, and the impact on the environment is extremely small.
【０００４】[0004]
【発明が解決しようとする課題】上記反応において、カ
ソード側では二酸化炭素（ＣＯ2 ）を消費し、アノード
側ではこれを発生するので、発電設備内で二酸化炭素を
アノード側からカソード側へ循環させる必要がある。一
方、上記反応により発生した水蒸気を電池内で循環させ
ると、カソード側での水蒸気の分圧が上がり反応に寄与
する酸素や二酸化炭素の分圧が下がり、カソード反応が
阻害されるので、これを除去する必要がある。従来の発
電装置では、この水蒸気を除去するために、改質器の下
流に凝縮器と気液分離器を備え、改質器の排ガスを凝縮
器で凝縮し、次いで気液分離器で水滴を除去し、二酸化
炭素を含むガスのみをカソード側に循環させていた。In the above reaction, carbon dioxide (CO 2 ) is consumed on the cathode side and is generated on the anode side. Therefore, carbon dioxide is circulated from the anode side to the cathode side in the power generation equipment. There is a need. On the other hand, when water vapor generated by the above reaction is circulated in the battery, the partial pressure of the water vapor on the cathode side rises and the partial pressure of oxygen and carbon dioxide contributing to the reaction decreases, which inhibits the cathode reaction. Need to be removed. In order to remove this steam, a conventional power generator is provided with a condenser and a gas-liquid separator downstream of the reformer, the exhaust gas of the reformer is condensed by the condenser, and then water droplets are condensed by the gas-liquid separator. Only gas containing carbon dioxide was removed and circulated to the cathode side.
【０００５】しかし、かかる従来の発電設備では、改質
器の高温の排ガスを凝縮器で凝縮させるため大型の凝縮
器を必要とし、発電装置が大型になり、また運転に大量
の冷却水が必要であり、かつ冷却水による熱損失が大き
い問題があった。However, in such conventional power generation equipment, a large condenser is required to condense the high temperature exhaust gas of the reformer with the condenser, the power generator becomes large, and a large amount of cooling water is required for operation. In addition, there is a problem that heat loss due to cooling water is large.
【０００６】本発明は、かかる問題を解決するために創
案されたものである。すなわち、本発明は、発電装置を
小型にし、運転に必要な冷却水の量を減らし、かつ放熱
損出を低減させてプラント効率を高めることができる燃
料電池発電装置を提供することを目的とする。The present invention was created to solve such a problem. That is, it is an object of the present invention to provide a fuel cell power generator capable of downsizing the power generator, reducing the amount of cooling water required for operation, and reducing heat dissipation loss to improve plant efficiency. .
【０００７】[0007]
【課題を解決するための手段】本発明によれば、水素を
含むアノードガスと酸素を含むカソードガスから発電す
る燃料電池（２０）と、反応後のアノードガスを燃焼さ
せ、燃料ガスをアノードガスに改質する改質器（１０）
と、該改質器（１０）の排ガスによりカソード側に供給
される空気を予熱する空気予熱器（１４）と、該空気予
熱器からの排ガスを冷却して水分を凝縮させる凝縮器
（１６）と、凝縮した水分を分離する気液分離器（１
８）と、分離された水分を収容する凝縮水容器（１７）
と、水分を分離した排ガスをカソードガスに供給する排
ガス循環ラインと、反応後のカソードガスを燃料電池
（２０）の入口に戻すカソードガス循環ライン（９）
と、前記改質器（１０）の燃焼室（Ｃｏ）側と空気予熱
器（１４）を結ぶ燃焼排ガスライン（７）と、から成
り、前記凝縮器（１６）及び気液分離器（１８）が前記
凝縮水容器（１７）内に格納されている水分分離器（１
９）を備えた、ことを特徴とする水分分離器を備えた燃
料電池発電装置が提供される。前記凝縮水容器（１７）
は、容器中央部に設けられた排ガス供給口と、容器頂部
に設けられた排ガス排出口と、容器下端に設けられた凝
縮水排出口とを備えている。また、前記空気予熱器（１
４）で冷却された排ガスが、前記排ガス供給口を介して
前記凝縮器（１６）に供給され、前記気液分離器（１
８）で分離された排ガスが前記排ガス排出口を介して前
記空気に供給されることが好ましい。According to the present invention, a fuel cell (20) for generating electric power from an anode gas containing hydrogen and a cathode gas containing oxygen, and the anode gas after reaction are burned, and the fuel gas is used as the anode gas. Reformer (10)
And supplied to the cathode side by the exhaust gas of the reformer (10)
Air and the air preheater (14) for preheating that is, the gas-liquid separator for separating condenser for condensing the water by cooling the exhaust gas from the air preheater (16), the condensed water (1
8) and a condensed water container (17) containing the separated water
And an exhaust gas circulation line for supplying the exhaust gas from which water has been separated to the cathode gas, and a cathode gas circulation line (9) for returning the reacted cathode gas to the inlet of the fuel cell (20).
And a combustion exhaust gas line (7) connecting the combustion chamber (Co) side of the reformer (10) and the air preheater (14), the condenser (16) and the gas-liquid separator (18). Is stored in the condensed water container (17).
There is provided a fuel cell power generation device including a water separator, including: 9). The condensed water container (17)
Has an exhaust gas supply port provided at the center of the container, an exhaust gas discharge port provided at the top of the container, and a condensed water discharge port provided at the lower end of the container. In addition, the air preheater (1
The exhaust gas cooled in 4) is supplied to the condenser (16) through the exhaust gas supply port, and the gas-liquid separator (1)
The exhaust gas separated in 8) is preferably supplied to the air via the exhaust gas outlet.
【０００８】前記凝縮水容器は、容器中央部に設けられ
た排ガス供給口と、容器頂部に設けられた排ガス排出口
と、容器下端に設けられた凝縮水排出口とを備えてい
る。また、カソード側に供給される空気と改質器の排ガ
スとの間で熱を交換する空気予熱器を更に備え、該空気
予熱器で冷却された排ガスが前記排ガス供給口を介して
前記凝縮器に供給され、前記気液分離器で分離された排
ガスが前記排ガス排出口を介して前記空気に供給され
る、ことが好ましい。The condensed water container is provided with an exhaust gas supply port provided at the center of the container, an exhaust gas discharge port provided at the top of the container, and a condensed water discharge port provided at the lower end of the container. Further, an air preheater for exchanging heat between the air supplied to the cathode side and the exhaust gas of the reformer is further provided, and the exhaust gas cooled by the air preheater is the condenser via the exhaust gas supply port. It is preferable that the exhaust gas supplied to the air and separated by the gas-liquid separator is supplied to the air via the exhaust gas outlet.
【０００９】[0009]
【作用】本発明の構成では、凝縮器（１６）、気液分離
器（１８）が、１つの容器内に格納されているので、凝
縮器（１６）と気液分離器（１８）を別個に設ける場合
と比較して、装置が小型になり、製作コストも低減され
る。また、空気予熱器（１４）で冷却された排ガスを排
ガス供給口を介して凝縮水容器（１７）内の凝縮器（１
６）に供給し、凝縮水容器（１７）内の気液分離器（１
８）で分離された排ガスを排ガス排出口を介してカソー
ド側に供給される空気に供給するようにすれば、凝縮器
（１６）が小型になり、凝縮水容器（１７）内への格納
も容易になり、かつ運転に必要な冷却水の量が少なくな
り、冷却水による熱損失も大幅に低減することができ
る。In the structure of the present invention, since the condenser (16) and the gas-liquid separator (18) are housed in one container, the condenser (16) and the gas-liquid separator (18) are separated. The size of the device is reduced and the manufacturing cost is also reduced as compared with the case where the device is provided. In addition, the exhaust gas cooled by the air preheater (14) is supplied to the condenser (1) in the condensed water container (17) through the exhaust gas supply port.
6), the gas-liquid separator (1) in the condensed water container (17)
If the exhaust gas separated in 8) is supplied to the air supplied to the cathode side through the exhaust gas outlet, the condenser (16) becomes compact and can be stored in the condensed water container (17). This facilitates operation, reduces the amount of cooling water required for operation, and significantly reduces heat loss due to cooling water.
【００１０】[0010]
【実施例】以下に本発明の好ましい実施例を図面を参照
して説明する。図１は、本発明による発電設備を示す全
体構成図である。この図において、発電設備は、燃料ガ
スを水素を含むアノードガスに改質する改質器１０と、
前記アノードガスと酸素を含むカソードガスとから発電
する燃料電池２０と、アノード排ガスを燃焼させる触媒
燃焼器３０と、改質器１０を出た高温のアノードガスと
改質器１０に供給する低温の燃料ガスとの間で熱を交換
する熱交換器すなわち燃料予熱器４０とを備える。更
に、本発電設備は、燃料ガス中に含まれる硫黄分を除去
する脱硫器１２と、空気を予熱する空気予熱器１４と、
排ガス中の水分を凝縮する凝縮器１６と凝縮した水分を
分離する気液分離器１８とからなる水分分離器１９とを
備えている。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A preferred embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is an overall configuration diagram showing a power generation facility according to the present invention. In this figure, a power generation facility includes a reformer 10 for reforming a fuel gas into an anode gas containing hydrogen,
A fuel cell 20 for generating power from the anode gas and a cathode gas containing oxygen, a catalytic combustor 30 for burning the anode exhaust gas, a high temperature anode gas discharged from the reformer 10 and a low temperature anode gas supplied to the reformer 10. And a fuel preheater 40 for exchanging heat with the fuel gas. Further, the power generation facility includes a desulfurizer 12 that removes sulfur contained in the fuel gas, an air preheater 14 that preheats air,
A water separator 19 including a condenser 16 for condensing water in the exhaust gas and a gas-liquid separator 18 for separating the condensed water is provided.
【００１１】硫黄分を含む天然ガス等の燃料ガスは脱硫
器１２により脱硫された後、ライン１を通って燃料加熱
器４０に供給され、この燃料予熱器４０で加熱されて改
質器１０に供給される。A fuel gas such as a natural gas containing sulfur is desulfurized by a desulfurizer 12 and is then supplied to a fuel heater 40 through a line 1 and heated by the fuel preheater 40 to a reformer 10. Supplied.
【００１２】改質器１０は、触媒燃焼器３０から燃焼ガ
スライン６を介して供給される高温の燃焼ガスが完全燃
焼する燃焼室Ｃｏと、燃焼室からの伝熱により燃料ガス
を改質する改質室Ｒｅとからなる。改質器１０は、燃焼
室Ｃｏと改質室Ｒｅを平面状にし、これを複数積層させ
たプレート型改質器であるのが良い。改質室Ｒｅ内には
改質触媒が充填され、燃焼室Ｃｏで発生した高温の燃焼
ガスにより燃料ガスを水素を含む高温のアノードガスに
改質する。放熱により温度が下がった燃焼排ガスは、燃
焼排ガスライン７を介して空気予熱器１４に供給されて
空気を加熱し、次いで、水分分離器１９により水分が除
去される。一方、改質器１０を出た高温のアノードガス
は、アノードガスライン２を介して燃料予熱器４０に供
給され、この燃料予熱器４０で冷却され、燃料電池２０
に供給される。The reformer 10 reforms the fuel gas by the combustion chamber Co in which the high temperature combustion gas supplied from the catalytic combustor 30 via the combustion gas line 6 is completely burned and the heat transfer from the combustion chamber. The reforming chamber Re. The reformer 10 is preferably a plate-type reformer in which the combustion chamber Co and the reforming chamber Re are made flat and a plurality of these are stacked. The reforming chamber Re is filled with a reforming catalyst, and the high temperature combustion gas generated in the combustion chamber Co reforms the fuel gas into a high temperature anode gas containing hydrogen. The flue gas whose temperature has dropped due to heat radiation is supplied to the air preheater 14 via the flue gas line 7 to heat the air, and then the water separator 19 removes water. On the other hand, the high temperature anode gas that has exited the reformer 10 is supplied to the fuel preheater 40 via the anode gas line 2 and cooled by the fuel preheater 40.
Is supplied to.
【００１３】燃料電池２０は、アノードガスが通過する
アノード側Ａと、カソードガスが通過するカソード側Ｃ
とからなり、アノードガス中の水素、一酸化炭素と、カ
ソードガス中の酸素、二酸化炭素とから化学反応により
電気を発生するようになっている。燃料電池２０は、溶
融炭酸塩型燃料電池であるのが良い。The fuel cell 20 has an anode side A through which the anode gas passes and a cathode side C through which the cathode gas passes.
And hydrogen is generated in the anode gas and carbon monoxide, and oxygen and carbon dioxide in the cathode gas generate electricity by a chemical reaction. The fuel cell 20 may be a molten carbonate fuel cell.
【００１４】燃料電池２０を出たアノード排ガスとカソ
ード排ガスはアノード排ガスライン４及びカソード排ガ
スライン５を介して触媒燃焼器３０に供給される。この
触媒燃焼器３０内には、ハニカム状のニッケルを主成分
とする燃焼触媒が充填されており、アノード排ガスに含
まれる未燃分をカソード排ガスに含まれる酸素により燃
焼させるようになっている。この触媒燃焼器３０で発生
した高温の燃焼ガスはライン６を介して改質器１０の燃
焼室Ｃｏに供給される。The anode exhaust gas and cathode exhaust gas discharged from the fuel cell 20 are supplied to the catalytic combustor 30 via the anode exhaust gas line 4 and the cathode exhaust gas line 5. The catalytic combustor 30 is filled with a honeycomb-shaped combustion catalyst containing nickel as a main component, and the unburned components contained in the anode exhaust gas are burned by the oxygen contained in the cathode exhaust gas. The high temperature combustion gas generated in the catalytic combustor 30 is supplied to the combustion chamber Co of the reformer 10 via the line 6.
【００１５】燃料電池２０のカソードガスライン３には
空気源（図示せず）から空気ライン８、空気予熱器１４
を介して空気が供給される。この空気ライン８には水分
分離器１９により水分が分離された燃焼排ガスの一部が
供給され、電池の反応に必要な二酸化炭素を供給するよ
うになっている。In the cathode gas line 3 of the fuel cell 20, an air source (not shown), an air line 8 and an air preheater 14 are provided.
Air is supplied through the. A part of the combustion exhaust gas from which the water is separated by the water separator 19 is supplied to the air line 8 so that carbon dioxide necessary for the reaction of the battery is supplied.
【００１６】更に、燃料電池のカソード側Ｃを通過した
カソード排ガスの一部はカソード循環ライン９を介して
カソードライン３に循環される。このカソード循環ライ
ン９には通常、熱交換器（図示せず）、ブロア２２が設
けられ、循環するカソードガスの温度、流量を制御でき
るようになっている。Further, a part of the cathode exhaust gas passing through the cathode side C of the fuel cell is circulated to the cathode line 3 via the cathode circulation line 9. A heat exchanger (not shown) and a blower 22 are usually provided in the cathode circulation line 9 so that the temperature and flow rate of the circulating cathode gas can be controlled.
【００１７】水分分離器１９は、図２に示すように、改
質器の排ガスを冷却して水分を凝縮させる凝縮器１６
と、水分を分離する気液分離器１８と、分離された水分
を収容する凝縮水容器１７とからなる。凝縮器１６と気
液分離器１８は、凝縮水容器１７内に格納されている。The water separator 19 is, as shown in FIG. 2, a condenser 16 for cooling the exhaust gas of the reformer and condensing the water.
And a gas-liquid separator 18 for separating water and a condensed water container 17 for storing the separated water. The condenser 16 and the gas-liquid separator 18 are housed in the condensed water container 17.
【００１８】凝縮水容器１７は、容器中央部に設けられ
た排ガス供給口１７ａと、容器頂部に設けられた排ガス
排出口１７ｂと、容器下端に設けられた凝縮水排出口１
７ｃとを備える。凝縮器１６は内部を冷却水が流れる水
管であり、凝縮水容器１７のほぼ中央部に設けられるの
が良い。気液分離器１８は、細長い金属片が密に充填さ
れた通気性のある板状体であり、内部をガスが通過する
際に水滴が捕獲されるようになっている。この気液分離
器１８は凝縮水容器１７の上部に設けられる。更に、凝
縮水容器１７は、内部が空洞の密封容器であり、凝縮水
排出口１７ｃから蒸気トラップ（図示せず）等を介して
外部に凝縮水を取り出せるようになっている。The condensed water container 17 has an exhaust gas supply port 17a provided at the center of the container, an exhaust gas discharge port 17b provided at the top of the container, and a condensed water discharge port 1 provided at the lower end of the container.
7c and. The condenser 16 is a water pipe through which the cooling water flows, and it is preferable that the condenser 16 is provided substantially at the center of the condensed water container 17. The gas-liquid separator 18 is an air-permeable plate-like body that is densely filled with elongated metal pieces, and water droplets are captured when gas passes through the inside. The gas-liquid separator 18 is provided above the condensed water container 17. Further, the condensed water container 17 is a sealed container having a hollow inside, and the condensed water can be taken out from the condensed water discharge port 17c via a steam trap (not shown) or the like.
【００１９】この水分分離器１９の使用において、空気
予熱器１４で冷却された排ガスは排ガス供給口１７ａを
介して凝縮器１６に供給され、気液分離器１８で分離さ
れた排ガスは排ガス排出口１７ｂを介して、空気予熱器
１４に供給される空気に合流する。In the use of the water separator 19, the exhaust gas cooled by the air preheater 14 is supplied to the condenser 16 through the exhaust gas supply port 17a, and the exhaust gas separated by the gas-liquid separator 18 is exhaust gas exhaust port. It joins with the air supplied to the air preheater 14 via 17b.
【００２０】かかる構成によれば、凝縮器、気液分離器
が、１つの凝縮水容器内に格納されているので、凝縮器
と気液分離器を別個に設ける場合と比較して、装置が小
型になり、製作コストも低減される。According to this structure, since the condenser and the gas-liquid separator are housed in one condensed water container, the apparatus can be configured as compared with the case where the condenser and the gas-liquid separator are separately provided. The size is reduced and the manufacturing cost is reduced.
【００２１】また、空気予熱器を備え、空気予熱器で冷
却された排ガスを排ガス供給口を介して凝縮水容器内の
凝縮器に供給し、凝縮水容器内の気液分離器で分離され
た排ガスを排ガス排出口を介してカソード側に供給され
る空気に供給すれば、凝縮器が小型になり、凝縮水容器
内への格納も容易になり、かつ運転に必要な冷却水の量
が少なくなり、冷却水による熱損失も大幅に低減するこ
とができる。Further, an air preheater is provided, and the exhaust gas cooled by the air preheater is supplied to the condenser in the condensed water container through the exhaust gas supply port and separated by the gas-liquid separator in the condensed water container. If the exhaust gas is supplied to the air supplied to the cathode side through the exhaust gas outlet, the condenser will be smaller, it will be easier to store it in the condensed water container, and the amount of cooling water required for operation will be less. Therefore, the heat loss due to the cooling water can be significantly reduced.
【００２２】[0022]
【発明の効果】従って、本発明によれば、発電装置を小
型にし、運転に必要な冷却水の量を減らし、かつ放熱損
出を低減させてプラント効率を高めることができる。As described above, according to the present invention, it is possible to reduce the size of the power generator, reduce the amount of cooling water required for operation, and reduce the loss of heat radiation to improve plant efficiency.
【図１】本発明による発電装置を示す全体構成図であ
る。FIG. 1 is an overall configuration diagram showing a power generator according to the present invention.
【図２】水分分離器の構成を示す断面図である。FIG. 2 is a cross-sectional view showing the structure of a water separator.
１ 燃料ガスライン ２ アノードガスライン ３ カソードガスライン ４ アノード排ガスライン ５ カソード排ガスライン ６ 燃焼ガスライン ７ 燃焼排ガスライン ８ カソードガスライン ９ カソードガス循環ライン １０ 改質器 １２ 脱硫器 １４ 空気予熱器 １６ 凝縮器 １７ 凝縮水容器 １８ 気液分離器 １９ 水分分離器 ２０ 燃料電池 ３０ 触媒燃焼器 ４０ 燃料予熱器1 Fuel Gas Line 2 Anode Gas Line 3 Cathode Gas Line 4 Anode Exhaust Gas Line 5 Cathode Exhaust Gas Line 6 Combustion Gas Line 7 Combustion Exhaust Gas Line 8 Cathode Gas Line 9 Cathode Gas Circulation Line 10 Reformer 12 Desulfurizer 14 Air Preheater 16 Condensation 17 Condensed water container 18 Gas-liquid separator 19 Moisture separator 20 Fuel cell 30 Catalytic combustor 40 Fuel preheater
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.7，ＤＢ名) H01M 8/04 ─────────────────────────────────────────────────── ─── Continuation of front page (58) Fields surveyed (Int.Cl. 7 , DB name) H01M 8/04
Claims (3)
ソードガスから発電する燃料電池（２０）と、反応後の
アノードガスを燃焼させ、燃料ガスをアノードガスに改
質する改質器（１０）と、該改質器（１０）の排ガスに
よりカソード側に供給される空気を予熱する空気予熱器
（１４）と、該空気予熱器からの排ガスを冷却して水分
を凝縮させる凝縮器（１６）と、凝縮した水分を分離す
る気液分離器（１８）と、分離された水分を収容する凝
縮水容器（１７）と、水分を分離した排ガスをカソード
ガスに供給する排ガス循環ラインと、反応後のカソード
ガスを燃料電池（２０）の入口に戻すカソードガス循環
ライン（９）と、前記改質器（１０）の燃焼室（Ｃｏ）
側と空気予熱器（１４）を結ぶ燃焼排ガスライン（７）
と、から成り、 前記凝縮器（１６）及び気液分離器（１８）が前記凝縮
水容器（１７）内に格納されている水分分離器（１９）
を備えた、ことを特徴とする水分分離器を備えた燃料電
池発電装置。1. A fuel cell (20) for generating power from an anode gas containing hydrogen and a cathode gas containing oxygen, and a reformer (10) for burning the reacted anode gas to reform the fuel gas into the anode gas. And the exhaust gas of the reformer (10)
Air preheater that preheats the air supplied to the cathode side
And (14), condensation condenser for condensing the water by cooling the exhaust gas from the air preheater (16), the gas-liquid separator for separating the condensed water (18), for accommodating the separated water A water container (17), an exhaust gas circulation line for supplying exhaust gas from which water has been separated to a cathode gas, a cathode gas circulation line (9) for returning the reacted cathode gas to the inlet of the fuel cell (20), and the reforming Combustion chamber (Co) of vessel (10)
Combustion exhaust gas line (7) connecting the air side with the air preheater (14)
And a water separator (19) in which the condenser (16) and the gas-liquid separator (18) are stored in the condensed water container (17).
A fuel cell power generator including a water separator, comprising:
に設けられた排ガス供給口と、容器頂部に設けられた排
ガス排出口と、容器下端に設けられた凝縮水排出口とを
備える、ことを特徴とする請求項１に記載の水分分離器
を備えた燃料電池発電装置。2. The condensed water container (17) comprises an exhaust gas supply port provided at the center of the container, an exhaust gas discharge port provided at the top of the container, and a condensed water discharge port provided at the lower end of the container. The water separator according to claim 1, wherein
Fuel cell power generator equipped with .
ガスが、前記排ガス供給口を介して前記凝縮器（１６）
に供給され、前記気液分離器（１８）で分離された排ガ
スが前記排ガス排出口を介して前記空気に供給される、
ことを特徴とする請求項２に記載の水分分離器を備えた
燃料電池発電装置。3. The exhaust gas cooled in the air preheater (14), the condenser through the exhaust gas supply port (16)
And the exhaust gas separated by the gas-liquid separator (18) is supplied to the air through the exhaust gas outlet.
A fuel cell power generator comprising the water separator according to claim 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16051292A JP3407747B2 (en) | 1992-06-19 | 1992-06-19 | Fuel cell power generator with moisture separator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16051292A JP3407747B2 (en) | 1992-06-19 | 1992-06-19 | Fuel cell power generator with moisture separator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH065301A JPH065301A (en) | 1994-01-14 |
| JP3407747B2 true JP3407747B2 (en) | 2003-05-19 |
Family
ID=15716555
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16051292A Expired - Fee Related JP3407747B2 (en) | 1992-06-19 | 1992-06-19 | Fuel cell power generator with moisture separator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3407747B2 (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003190725A (en) | 2001-12-25 | 2003-07-08 | Maruyasu Industries Co Ltd | Gas-liquid separator |
| WO2015116964A1 (en) * | 2014-01-31 | 2015-08-06 | Fuelcell Energy, Inc. | Reformer-electrolyzer-purifier (rep) assembly for hydrogen production, systems incorporating same and method of producing hydrogen |
| CN108604697B (en) | 2015-11-16 | 2021-06-04 | 燃料电池能有限公司 | CO capture from fuel cells2Of (2) a |
| KR101992798B1 (en) | 2015-11-16 | 2019-06-25 | 퓨얼 셀 에너지, 인크 | Energy storage using REP with engine |
| CA3107519C (en) | 2015-11-17 | 2023-01-31 | Fuelcell Energy Inc. | Hydrogen and carbon monoxide generation using an rep with partial oxidation |
| CA3005628C (en) | 2015-11-17 | 2021-05-25 | Fuelcell Energy, Inc. | Fuel cell system having enhanced co2 capture |
| CA3021733C (en) | 2016-04-21 | 2020-12-29 | Fuelcell Energy, Inc. | Fluidized catalytic cracking unit system with integrated reformer-electrolyzer-purifier |
| US10897055B2 (en) | 2017-11-16 | 2021-01-19 | Fuelcell Energy, Inc. | Load following power generation and power storage using REP and PEM technology |
| US11495806B2 (en) | 2019-02-04 | 2022-11-08 | Fuelcell Energy, Inc. | Ultra high efficiency fuel cell power generation system |
-
1992
- 1992-06-19 JP JP16051292A patent/JP3407747B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH065301A (en) | 1994-01-14 |
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