JPH01105475A - Natural gas reforming fused carbonate type fuel cell power generator - Google Patents
Natural gas reforming fused carbonate type fuel cell power generatorInfo
- Publication number
- JPH01105475A JPH01105475A JP62259772A JP25977287A JPH01105475A JP H01105475 A JPH01105475 A JP H01105475A JP 62259772 A JP62259772 A JP 62259772A JP 25977287 A JP25977287 A JP 25977287A JP H01105475 A JPH01105475 A JP H01105475A
- Authority
- JP
- Japan
- Prior art keywords
- gas
- reformer
- anode
- line
- fuel cell
- 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.)
- Pending
Links
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 58
- 239000000446 fuel Substances 0.000 title claims abstract description 32
- 239000003345 natural gas Substances 0.000 title claims abstract description 29
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 title claims abstract description 13
- 238000002407 reforming Methods 0.000 title claims abstract description 8
- 239000007789 gas Substances 0.000 claims abstract description 95
- 229910001868 water Inorganic materials 0.000 claims abstract description 27
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 24
- 238000002485 combustion reaction Methods 0.000 claims abstract description 20
- 239000000567 combustion gas Substances 0.000 claims abstract description 8
- 238000010248 power generation Methods 0.000 claims description 11
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 4
- 239000003546 flue gas Substances 0.000 claims description 4
- 238000001704 evaporation Methods 0.000 claims description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 abstract description 22
- 229910002092 carbon dioxide Inorganic materials 0.000 abstract description 12
- 239000001569 carbon dioxide Substances 0.000 abstract description 11
- 238000000629 steam reforming Methods 0.000 abstract description 6
- 238000000926 separation method Methods 0.000 abstract description 5
- 239000007788 liquid Substances 0.000 description 13
- 239000002737 fuel gas Substances 0.000 description 4
- 230000001590 oxidative effect Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000011144 upstream manufacturing 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
-
- 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
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は燃料の有する化学エネルギーを直接電気エネル
ギーに変換させるエネルギ一部門で用いる燃料電池の発
電装置に関するもので、特に、天然ガス改質溶融炭酸塩
型燃料電池発電装置に関するものである。Detailed Description of the Invention [Field of Industrial Application] The present invention relates to a fuel cell power generation device used in the energy sector that directly converts the chemical energy of fuel into electrical energy, and in particular relates to a fuel cell power generation device used in the energy sector that directly converts the chemical energy of fuel into electrical energy. This invention relates to a carbonate fuel cell power generation device.
［従来の技術］
現在までに提案されている溶融炭酸塩型燃料電池は、溶
融炭酸塩を多孔質物質に浸み込ませてなる電解質板（タ
イル）を、カソード（Ｍ累積）とアノード（燃料極）で
両面から挾み、カソード側に酸化ガスを供給すると共に
アノード側に燃料ガスを供給することによりカソードと
アノードとの間で発生する電位差により発電が行われる
ようにしたものを１セルとし、各セルをセパレータを介
して多層に積層した構成のものとしである。[Prior Art] Molten carbonate fuel cells that have been proposed to date include an electrolyte plate (tile) made of porous material impregnated with molten carbonate, and a cathode (M accumulation) and an anode (fuel One cell is one in which electricity is generated by the potential difference generated between the cathode and the anode by sandwiching the cell between the two sides (poles) and supplying oxidizing gas to the cathode side and supplying fuel gas to the anode side. , each cell is stacked in multiple layers with a separator in between.
上記溶融炭酸塩型燃料電池の燃料として用いる燃料ガス
は、改質器で製造されたものを用いるが、天然ガス改質
の場合にはスチームリフオーミングが行われている。The fuel gas used as the fuel for the molten carbonate fuel cell is one produced in a reformer, and in the case of natural gas reforming, steam reforming is performed.
従来の天然ガス改質溶融炭酸塩型燃料電池の発電システ
ムは、第２図に示す如き構成としである。すなわち、燃
料電池１のカソード２には酸化ガスを供給するため、空
気へを空気供給ライン６上の圧縮機４で圧縮させた後、
空気予熱器５で予熱してカソード２に供給すると共に、
一部を改質器８に分岐ライン７により供給し、カソード
２から排出されたガスは、ライン９を経てタービン１０
に導き、更に、上記空気予熱器５を通して排出されるよ
うにしである。一方、燃料電池１のアノードに供給され
る天然ガスＮＧは、ブロワ１８により加圧されて天然ガ
ス予熱器１１、脱硫器２３を経て改質器８に導入され、
ここで改質されて燃料ガス配管１９を経てアノード３に
供給されるようにし、該アノード３から排出されたアノ
ードガスには水分が含まれているため、このアノードガ
ス中の水分を一部ガスと分離した後に、分離した水は蒸
気として改質器８人口側で天然ガスＮＧと混ぜるように
している。A conventional power generation system using a natural gas reforming molten carbonate fuel cell has a configuration as shown in FIG. That is, in order to supply oxidizing gas to the cathode 2 of the fuel cell 1, after compressing air with the compressor 4 on the air supply line 6,
In addition to preheating the air with an air preheater 5 and supplying it to the cathode 2,
A part of the gas is supplied to the reformer 8 through a branch line 7, and the gas discharged from the cathode 2 is passed through a line 9 to the turbine 10.
The air is then discharged through the air preheater 5. On the other hand, natural gas NG supplied to the anode of the fuel cell 1 is pressurized by the blower 18 and introduced into the reformer 8 via the natural gas preheater 11 and the desulfurizer 23.
Here, the anode gas is reformed and supplied to the anode 3 via the fuel gas pipe 19, and since the anode gas discharged from the anode 3 contains moisture, some of the moisture in this anode gas is removed from the anode gas. After separation, the separated water is mixed with natural gas NG on the reformer 8 intake side as steam.
そのために、従来では、燃料電池のアノード３から排出
されたアノードガスは、アノード出口ガスライン２０に
より天然ガス予熱器１１を通し、凝縮器１２で冷却して
凝縮した後、気液分離器１４にてガスと水とに分離し、
ガスＧはブロワ１３にて改質器８に導いて燃焼用ガスと
して使用する、と共に、水（Ｈ２Ｏ）はポンプ１５で加
圧されて蒸気発生器１６へ送られ、ここで加熱されて蒸
気としてライン１７を経て改質器８の入口側で天然ガス
導入管２２に供給され該天然ガス導入管２２内の天然ガ
スＮＧと混ぜられるようにしてあり、改質器８から排出
された炭酸ガスを含む燃焼排ガスは、排ガスライン２１
を通って上記空気供給ライン６を流れる空気と共に燃料
電池１のカソード２に供給されるようにしである。For this purpose, conventionally, the anode gas discharged from the anode 3 of the fuel cell is passed through the natural gas preheater 11 via the anode outlet gas line 20, cooled and condensed in the condenser 12, and then sent to the gas-liquid separator 14. to separate gas and water,
The gas G is guided to the reformer 8 by the blower 13 and used as a combustion gas, and the water (H2O) is pressurized by the pump 15 and sent to the steam generator 16, where it is heated and turned into steam. It is supplied to the natural gas introduction pipe 22 at the inlet side of the reformer 8 via a line 17 so that it is mixed with the natural gas NG in the natural gas introduction pipe 22, and the carbon dioxide gas discharged from the reformer 8 is The combustion exhaust gas containing
The cathode 2 of the fuel cell 1 is supplied with the air flowing through the air supply line 6.
［発明が解決しようとする問題点］
ところが、従来の天然ガス改質溶融炭酸塩型燃料電池の
発電システムでは、燃料電池のアノード３でＨ２＋ Ｃ
ＣＡ＝ Ｈ２０＋Ｃ０２＋ ２ ｅ−の反応が行われ、
ここで得られた炭酸ガス（Ｃｏ、）を含むアノードガス
を気液分離した後に改質器８を通してガスＧのみをカソ
ード２に供給させるようにしであるため、アノード３の
出口と改質器８との間のアノード出口ガスライン２０に
ブロワ１３を設けることが必要不可欠とされていた。そ
のため、燃料電池として、機器の数が多く、それだけ構
成が大掛かり、複雑となり、更に設備費が嵩んでいた。[Problems to be Solved by the Invention] However, in the conventional natural gas reformed molten carbonate fuel cell power generation system, H2+C is generated at the anode 3 of the fuel cell.
The reaction CA= H20+C02+ 2 e- is carried out,
After the anode gas containing carbon dioxide (Co) obtained here is separated into gas and liquid, only the gas G is supplied to the cathode 2 through the reformer 8. Therefore, the outlet of the anode 3 and the reformer 8 It was considered essential to provide a blower 13 in the anode outlet gas line 20 between the anode and the anode outlet gas line 20. As a result, a fuel cell requires a large number of devices, which makes the configuration large and complicated, and further increases the equipment cost.
そこで、本発明は、上記従来方式におけるアノードの出
口と改質器との間のアノード出口ガスライン中のブロワ
を省略しても充分な発電効率を達成できるような天然ガ
ス改質溶融炭酸塩型燃料電池発電装置を提供しようとす
るものである。Therefore, the present invention provides a natural gas reforming molten carbonate type system that can achieve sufficient power generation efficiency even if the blower in the anode outlet gas line between the anode outlet and the reformer in the conventional method is omitted. The present invention aims to provide a fuel cell power generation device.
［問題点を解決するための手段］
本発明は、上記目的を達成するために、天然ガスを改質
して燃料電池のアノードに供給すると共に、空気を圧縮
した後予熱して燃料電池のカソードに供給し、且つ該空
気の一部と上記アノードから排出されたガスとを改質器
に供給するようにし、更に水を蒸発させて上記改質器入
口側の天然ガス中に供給するようにしてある天然ガス改
質溶融炭酸塩型燃料電池発電装置において、上記アノー
ドから排出されたアノードガスをそのまま直接改質器の
燃焼用ガスとして供給するようアノード出口ガスライン
をアノードと改質器との間に配し、且つ改質器から排出
される燃焼排ガスを上記空気とともにカソードに供給さ
せるように空気供給ラインと改質器との間に燃焼排ガス
ラインを設け、該燃焼排ガスラインの下流位置に、燃焼
排ガスを水とガスとに分離するための装置を設け、分離
した水を蒸発させる蒸気発生器を上記燃焼排ガスライン
の途中に設けた構成とする。[Means for Solving the Problems] In order to achieve the above object, the present invention reformes natural gas and supplies it to the anode of a fuel cell, compresses air, and then preheats it to supply the cathode of the fuel cell. A part of the air and the gas discharged from the anode are supplied to the reformer, and water is further evaporated and supplied to the natural gas on the inlet side of the reformer. In a natural gas reformed molten carbonate fuel cell power generation system, an anode outlet gas line is connected between the anode and the reformer so that the anode gas discharged from the anode is directly supplied as combustion gas to the reformer. A combustion exhaust gas line is provided between the air supply line and the reformer so that the combustion exhaust gas discharged from the reformer is supplied to the cathode together with the air, and a combustion exhaust gas line is provided at a downstream position of the combustion exhaust gas line. A device for separating combustion exhaust gas into water and gas is provided, and a steam generator for evaporating the separated water is provided in the middle of the combustion exhaust gas line.
［作 用］
６一
アノードからのアノードガスがそのまま改質器に燃焼用
ガスとして供給されると、炭酸ガスと水分とを含む燃焼
排ガスが改質器から排出され、該燃焼排ガスが分離装置
で水とガスとに分離される。分離された水はスチームリ
フォーミング用に天然ガスに混入され、ガスは空気と共
にカソードに供給される。これにより、従来のアノード
出口ガスライン中のブロワが不要となり、省略できる。[Function] When the anode gas from the 6-anode is directly supplied to the reformer as combustion gas, combustion exhaust gas containing carbon dioxide and moisture is discharged from the reformer, and the combustion exhaust gas is passed through the separation device. Separated into water and gas. The separated water is mixed with natural gas for steam reforming, and the gas is fed to the cathode along with air. This eliminates the need for a conventional blower in the anode outlet gas line and can be omitted.
［実 施 例１ 以下、本発明の実施例を図面を参照して説明する。[Implementation Example 1] Embodiments of the present invention will be described below with reference to the drawings.
第１図は本発明の一実施例を示すもので、燃料電池１の
カソード２側には、第２図に示す従来方式と同様に、酸
化ガスを供給するため、空気Ａを圧縮機４で圧縮させた
後、空気予熱器５で予熱し、空気供給ライン６によりカ
ソード２の入口側に供給できるようにすると共に、一部
を改質器８に分岐ライン７を通して供給できるようにし
、又、カソード２から排出されたガスは、ライン９を経
てタービン１０に導き、更に、上記空気予熱器５を通し
て排出させるような構成とし、一方、燃料電池１のアノ
ード３には従来と同様に、改質器８で改質されたガスを
供給するため改質器８とアノード３の入口側とを燃料ガ
ス配管１９にて接続し、且つ改質器８の反応室入口に天
然ガスＮＧを導入する天然ガス導入管２２を接続した構
成において、アノード３から排出されたアノードガスを
天然ガス予熱器１１を通した後、気液分離せずにそのま
ま改質器８の燃焼用ガスとして供給するように、アノー
ド出口ガスライン２０をアノード３の出口側から上記天
然ガス予熱器１１を通して改質器８に直結し、又、改質
器８から排出された燃焼排ガスをカソード２に供給する
ことなく空気供給ライン６の圧縮機４の上流側に導入さ
せるよう排ガスライン２１を空気供給ライン６に接続し
、上記排ガスライン２１の下流位置に、ガスと水とに分
離するために、凝縮器１２′ と気液分離器１４′を設
け、且つ上記気液分離器１４′ にて水と分離されたガ
スＧを、空気供給ライン６の圧縮機４人口側に導入して
、空気Ａと共にライン６を経てカソード２に供給できる
ようにし、一方、気液分離器１４′で分離された水（Ｈ
２Ｏ）を、ポンプ１５で加圧して排ガスライン２１の途
中に設けた蒸気発生器１６′へ送り、ここで加熱し蒸気
としてライン１７により改質器８人口側の天然ガス導入
管２２に入れられるようにする。FIG. 1 shows an embodiment of the present invention, in which air A is supplied to the cathode 2 side of a fuel cell 1 by a compressor 4 in order to supply oxidizing gas, similar to the conventional system shown in FIG. After being compressed, it is preheated in an air preheater 5 and supplied to the inlet side of the cathode 2 through an air supply line 6, and a portion can be supplied to a reformer 8 through a branch line 7, and The gas discharged from the cathode 2 is guided to the turbine 10 via the line 9 and is further discharged through the air preheater 5. On the other hand, the anode 3 of the fuel cell 1 is connected to the reformer as in the past. In order to supply the gas reformed in the reformer 8, the reformer 8 and the inlet side of the anode 3 are connected by a fuel gas pipe 19, and natural gas NG is introduced into the reaction chamber inlet of the reformer 8. In the configuration in which the gas introduction pipe 22 is connected, after the anode gas discharged from the anode 3 passes through the natural gas preheater 11, it is supplied as combustion gas to the reformer 8 without being separated into gas and liquid. The anode outlet gas line 20 is directly connected to the reformer 8 from the outlet side of the anode 3 through the natural gas preheater 11, and the combustion exhaust gas discharged from the reformer 8 is connected to the air supply line without being supplied to the cathode 2. An exhaust gas line 21 is connected to the air supply line 6 so as to be introduced into the upstream side of the compressor 4 of 6, and a condenser 12' and a gas-liquid line are installed downstream of the exhaust gas line 21 to separate gas and water. A separator 14' is provided, and the gas G separated from water by the gas-liquid separator 14' is introduced into the air supply line 6 on the air supply side of the compressor 4, and is sent together with the air A through the line 6 to the cathode 2. On the other hand, water (H
2O) is pressurized by the pump 15 and sent to the steam generator 16' installed in the middle of the exhaust gas line 21, where it is heated and turned into steam and introduced into the natural gas introduction pipe 22 on the intake side of the reformer 8 through the line 17. do it like this.
アノード３から排出されたアノードガスには水分と炭酸
ガス（ＣＯ２）が含まれているが、本発明では、アノー
ドガスを気液分離することなく、アノード出口ガスライ
ン２０によりそのまま改質器８に供給し燃焼用ガスとし
て使用する。The anode gas discharged from the anode 3 contains moisture and carbon dioxide (CO2), but in the present invention, the anode gas is directly sent to the reformer 8 via the anode outlet gas line 20 without being separated into gas and liquid. It is supplied and used as combustion gas.
このため、改質器８より排ガスライン２１に排出された
炭酸ガス（ＣＯ２＞を含む燃焼排ガス中には水（Ｈ２Ｏ
）分も含まれていることになる。このようにして、排ガ
スライン２１に排出された燃焼排ガスは、下流で、凝縮
器１２′ により冷却されて凝縮された後、気液分離器
１４′ により水とガスとに分離される。この際、改質
器８からの燃焼排ガスは、約６０℃まで冷却するとスチ
ームリフオーミングに必要な量の水を得ることができる
。したがって、気液分離器１４′ にて得られた水を、
ポンプ１５により加圧して蒸気発生器１６′に送り、こ
こで加熱させることにより約３Ｋｙ／ｄの蒸気としてラ
イン１７を介し改質器８人口側の天然ガス導入管２２に
供給し、天然ガスに混ぜるようにする。一方、上記気液
分離器１４′ にて得られた炭酸ガスを含む残ガスは、
空気供給ライン６の圧縮機４人口側に導入され、空気へ
と共に圧縮機４で圧縮された後、空気予熱器５で予熱さ
れ、空気供給ライン６によりカソード２に供給される。Therefore, water (H2O
) is also included. In this way, the combustion exhaust gas discharged into the exhaust gas line 21 is cooled and condensed downstream by the condenser 12', and then separated into water and gas by the gas-liquid separator 14'. At this time, if the combustion exhaust gas from the reformer 8 is cooled to about 60° C., an amount of water necessary for steam reforming can be obtained. Therefore, the water obtained in the gas-liquid separator 14' is
It is pressurized by the pump 15 and sent to the steam generator 16', where it is heated and supplied as approximately 3 Ky/d steam through the line 17 to the natural gas inlet pipe 22 on the input side of the reformer 8, and is converted into natural gas. Let it mix. On the other hand, the residual gas containing carbon dioxide obtained in the gas-liquid separator 14' is
The air is introduced into the air supply line 6 on the air supply side of the compressor 4, and after being compressed together with air by the compressor 4, it is preheated by the air preheater 5 and supplied to the cathode 2 through the air supply line 6.
この場合、上記気液分離器１４′にて水と分離した残ガ
ス中には約５０％の炭酸ガスを含んでいるため、カソー
ド２に必要な量の炭酸ガスが供給されることになる。In this case, the residual gas separated from water in the gas-liquid separator 14' contains about 50% carbon dioxide gas, so that the required amount of carbon dioxide gas is supplied to the cathode 2.
このように、アノードガス中の水分は分離されることな
くアノードガス中に含まれたまま改質器８に供給され、
スチームリフォーミングに必要な水分とカソード２に必
要な炭酸ガスは改質器８からの燃焼排ガスを気液分離す
ることにより得られるので、従来方式で必須の機器であ
ったアノード出口ガスライン２０中のブロワ１３を不要
にすることができる。これにより、全体のシステムを簡
略化することができ、製作費を安価にすることができる
。In this way, the moisture in the anode gas is supplied to the reformer 8 while remaining contained in the anode gas without being separated.
The moisture necessary for steam reforming and the carbon dioxide gas necessary for the cathode 2 are obtained by separating the combustion exhaust gas from the reformer 8 into gas and liquid. The blower 13 can be made unnecessary. This makes it possible to simplify the entire system and reduce manufacturing costs.
なお、本発明は上記実施例にのみ限定されるものではな
く、本発明の要旨を逸脱しない範囲内で種々の変更を加
え得ることは勿論である。It should be noted that the present invention is not limited to the above embodiments, and it goes without saying that various changes can be made without departing from the gist of the present invention.
［発明の効果］
以上述べた如く、本発明の燃料電池発電装置によれば、
天然ガス改質溶融炭酸塩型燃料電池のアノードから排出
されたアノードガスを、該アノードガスに含まれる水分
と共に直接改質器の燃焼用ガスとして供給するように、
アノード出口ガスラインを改質器に直結し、且つスチー
ムリフオーミングに必要な水分とカソードに必要な炭酸
ガスを、改質器の燃焼排ガスから得られるように、改質
器の排ガスラインの下流位置に燃焼排ガスをガスと水（
分離させるための装置とを設けた構成としたので、従来
不可欠の構成とされていた気液分離後のガスを改質器に
送るためのアノード出口ライン中のブロワを省略するこ
とができ、システムの簡略化、設備費の削減化を達成す
ることができる、という優れた効果を奏し得る。[Effects of the Invention] As described above, according to the fuel cell power generation device of the present invention,
The anode gas discharged from the anode of the natural gas reformed molten carbonate fuel cell is directly supplied as combustion gas to the reformer together with the moisture contained in the anode gas.
The anode outlet gas line is directly connected to the reformer, and the downstream of the reformer exhaust gas line is connected directly to the reformer, and the moisture necessary for steam reforming and the carbon dioxide necessary for the cathode are obtained from the combustion exhaust gas of the reformer. Place the flue gas into the gas and water position (
Since the configuration is equipped with a separation device, the blower in the anode outlet line for sending the gas after gas-liquid separation to the reformer, which was previously considered an indispensable configuration, to the reformer can be omitted, and the system It is possible to achieve the excellent effect of simplifying the process and reducing equipment costs.
第１図は本発明の装置の一実施例を示す系統図、第２図
は従来の例を示す系統図である。
１・・・燃料電池、２・・・カソード、３・・・アノー
ド、４・・・圧縮機、８・・・改質器、１２′ ・・・
凝縮器、１４′・・・気液分離器、１７・・・ライン、
２０アノード出ロガ・ スライン、２１・・・排ガスラ
イン、２２・・・天然ガス導入管。FIG. 1 is a system diagram showing one embodiment of the apparatus of the present invention, and FIG. 2 is a system diagram showing a conventional example. DESCRIPTION OF SYMBOLS 1... Fuel cell, 2... Cathode, 3... Anode, 4... Compressor, 8... Reformer, 12'...
Condenser, 14'... Gas-liquid separator, 17... Line,
20 Anode output logger line, 21...Exhaust gas line, 22...Natural gas introduction pipe.
Claims (1)
と共に、空気を圧縮した後予熱して燃料電池のカソード
に供給し、且つ該空気の一部と上記アノードから排出さ
れたガスとを改質器に供給するようにし、更に、水を蒸
発させて上記改質器入口側の天然ガス中に供給するよう
にしてある天然ガス改質溶融炭酸塩型燃料電池発電装置
において、上記アノードから排出されたアノードガスを
そのまま直接改質器の燃焼用ガスとして供給するようア
ノード出口ガスラインをアノードと改質器との間に配し
、且つ改質器から排出される燃焼排ガスを上記空気とと
もにカソードに供給させるように空気供給ラインと改質
器との間に燃焼排ガスラインを設け、該燃焼排ガスライ
ンの下流位置に、燃焼排ガスを水とガスとに分離するた
めの装置を設け、分離した水を蒸発させる蒸気発生器を
上記燃焼排ガスラインの途中に設けたことを特徴とする
天然ガス改質溶融炭酸塩型燃料電池発電装置。1) Reforming natural gas and supplying it to the anode of the fuel cell, compressing air, preheating it and supplying it to the cathode of the fuel cell, and combining a part of the air with the gas discharged from the anode. In a natural gas reforming molten carbonate fuel cell power generation device, the water is supplied to a reformer, and the water is further evaporated and supplied to the natural gas on the inlet side of the reformer. An anode outlet gas line is arranged between the anode and the reformer so that the discharged anode gas is directly supplied as combustion gas to the reformer, and the combustion exhaust gas discharged from the reformer is supplied together with the above air. A flue gas line is provided between the air supply line and the reformer so as to be supplied to the cathode, and a device for separating the flue gas into water and gas is provided downstream of the flue gas line. A natural gas reforming molten carbonate fuel cell power generation device, characterized in that a steam generator for evaporating water is provided in the middle of the combustion exhaust gas line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62259772A JPH01105475A (en) | 1987-10-16 | 1987-10-16 | Natural gas reforming fused carbonate type fuel cell power generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62259772A JPH01105475A (en) | 1987-10-16 | 1987-10-16 | Natural gas reforming fused carbonate type fuel cell power generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01105475A true JPH01105475A (en) | 1989-04-21 |
Family
ID=17338754
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62259772A Pending JPH01105475A (en) | 1987-10-16 | 1987-10-16 | Natural gas reforming fused carbonate type fuel cell power generator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01105475A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0456848A1 (en) * | 1989-01-09 | 1991-11-21 | Ishikawajima-Harima Heavy Industries Co., Ltd. | Electric power producing system using molten carbonate type fuel cell |
| JPH04129174A (en) * | 1990-09-19 | 1992-04-30 | Ishikawajima Harima Heavy Ind Co Ltd | Power generation device for fused carbonate fuel cell |
-
1987
- 1987-10-16 JP JP62259772A patent/JPH01105475A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0456848A1 (en) * | 1989-01-09 | 1991-11-21 | Ishikawajima-Harima Heavy Industries Co., Ltd. | Electric power producing system using molten carbonate type fuel cell |
| JPH04129174A (en) * | 1990-09-19 | 1992-04-30 | Ishikawajima Harima Heavy Ind Co Ltd | Power generation device for fused carbonate fuel cell |
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