JPS62150662A - Normal pressure type fuel cell power generation plant - Google Patents
Normal pressure type fuel cell power generation plantInfo
- Publication number
- JPS62150662A JPS62150662A JP60289256A JP28925685A JPS62150662A JP S62150662 A JPS62150662 A JP S62150662A JP 60289256 A JP60289256 A JP 60289256A JP 28925685 A JP28925685 A JP 28925685A JP S62150662 A JPS62150662 A JP S62150662A
- Authority
- JP
- Japan
- Prior art keywords
- air
- mcfc
- exhaust gas
- fuel cell
- gas
- 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.)
- Granted
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
- H01M8/06—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
-
- 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
-
- 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
- H01M8/04007—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids related to heat exchange
- H01M8/04014—Heat exchange using gaseous fluids; Heat exchange by combustion of reactants
-
- 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
- H01M8/04097—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants with recycling of the reactants
-
- 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〉
本発明は燃料電池を使用した発電プラントに係り、特に
システムとしての発電効率を向上させた燃料電池発電プ
ラントに関する。DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a power generation plant using a fuel cell, and more particularly to a fuel cell power generation plant with improved power generation efficiency as a system.
〈従来の技術〉
第２図は従来の燃料電池発電プラントのフローシートで
ある。第２図において、１は溶融炭酸塩を使用した常圧
型燃料電池（ＭＣＦＣ）、２はリフオーマ、３は空気圧
縮機、４は空気予熱器、５は過熱器付蒸発器、６は天然
ガス圧縮機、７は天然ガス予熱器である。ここでＭＣＦ
Ｃｌは第３図に示すような構造となっている。<Prior Art> Figure 2 is a flow sheet of a conventional fuel cell power generation plant. In Fig. 2, 1 is a normal pressure fuel cell (MCFC) using molten carbonate, 2 is a re-heater, 3 is an air compressor, 4 is an air preheater, 5 is an evaporator with a superheater, and 6 is a natural gas compressor. Machine 7 is a natural gas preheater. Here MCF
Cl has a structure as shown in FIG.
第３図においてａは電解質保持材に電解質を含浸させた
タイル、ｂは酸化ニッケル等の多孔質板製のカソード、
Ｃはニッケル等の多孔質板製のアノード、ｄはステンレ
ス鋼製で集電機能とガスの通路としての機能を合せもつ
セパレータ、ｅは空気等の酸化ガス流、ｆは水素と一酸
化炭素を含む燃料ガス流である。In Fig. 3, a is a tile made of an electrolyte-retaining material impregnated with electrolyte, b is a cathode made of a porous plate such as nickel oxide,
C is an anode made of a porous plate such as nickel, d is a separator made of stainless steel that functions as a current collector and a gas passage, e is an oxidizing gas flow such as air, and f is a separator for hydrogen and carbon monoxide. A fuel gas flow containing
ＭＣＦＣはかかる単一のユニット（セル）を多数積層し
たものである。即ちＭＣＦＣは水素と一酸化炭素を含む
燃料ガスと、空気等の酸化ガスを、それぞれアノード側
とカソード側に供給されて水と炭酸ガスに変換すると共
に電気を発生させるものである。MCFC is a stack of many such single units (cells). That is, in the MCFC, a fuel gas containing hydrogen and carbon monoxide and an oxidizing gas such as air are supplied to the anode side and the cathode side, respectively, to convert them into water and carbon dioxide gas and generate electricity.
ＭＣＰＣＩに供給されるガスの圧力と温度は燃料ガスお
よび酸化ガス共に略１，２ｋｌｊ／ ＣｍＺ ａ。The pressure and temperature of the gases supplied to the MCPCI are approximately 1.2 klj/CmZ a for both fuel gas and oxidizing gas.
５４０℃程度である。The temperature is about 540°C.
ＭＣＦＣ内の反応は発熱反応でありＭＣＦＣからの排気
の温度は略７００℃程度である。ＭＯＰＣＩのアノード
側に燃料ガスを供給するリフオーマ２は内部に触媒を担
持し、化学反応を起させる熱交換器であって、加熱側は
ＭＣＦＣｌのアノード側から送られる未反応の水素と一
酸化炭素を含むガスと圧縮空気とをそれぞれ導入して内
部で燃焼させており、被加熱側は触媒を担持し天然ガス
等のメタンを主成分とするガスと水蒸気の混合ガスを受
入れてそれを加熱改質し水素と一酸化炭素を主成分とす
る燃料ガスとして流出させるようになっている。そして
リフオーマ２からの燃焼排ガスはＭＣＦＣの）Ｊソード
側に送られる。The reaction within the MCFC is an exothermic reaction, and the temperature of the exhaust gas from the MCFC is approximately 700°C. Reformer 2, which supplies fuel gas to the anode side of MOPCI, is a heat exchanger that supports a catalyst inside and causes a chemical reaction, and the heating side uses unreacted hydrogen and carbon monoxide sent from the anode side of MCFCl. A gas containing methane and compressed air are respectively introduced and combusted internally, and the heated side supports a catalyst and receives a mixed gas of water vapor and a gas containing methane, such as natural gas, as a main component, and heats and reforms it. The fuel gas is released as a fuel gas containing hydrogen and carbon monoxide as main components. The combustion exhaust gas from the refoamer 2 is then sent to the J-sword side of the MCFC.
以下第２図のフローによって説明する。The process will be explained below using the flow shown in FIG.
空気を電動機３ａにより駆動される空気圧縮機３により
略１．２ｋＯ／ Ｃｍ２ ａに圧縮し、空気予熱機４に
送る。空気予熱機４では上記圧縮空気とＭＣＦＣＩのカ
ソード側からの排気の一部とをそれぞれ流通させて熱交
換し、圧縮空気を略５０５℃まで昇温すると共に、熱交
換の終った排気を系外に排出する。昇温された圧縮空気
とリフオーマ２からの燃焼排ガスとが混合されてＭＣＦ
Ｃｌのカソード側に送られる。尚リフオーマからの燃焼
排ガスと空気を混合してカソード側に送るのは、カソー
ド入口のガス温度を高めると共にＭＣＰＣＩタイルａ中
をカソード側からアノード側に移行するＣ Ｏ３−の供
給源としてＣＯ２を供給するためである。ＭＣＦＣＩの
カソード側からの排気は、その一部が上述のように空気
予熱器４に送られると共に、残部は過熱器付蒸発器５に
送られる。Air is compressed to approximately 1.2 kO/Cm2a by an air compressor 3 driven by an electric motor 3a and sent to an air preheater 4. In the air preheater 4, the compressed air and a part of the exhaust gas from the cathode side of the MCFCI are passed through each other to exchange heat, raise the temperature of the compressed air to approximately 505°C, and send the exhaust gas after heat exchange to the outside of the system. to be discharged. The heated compressed air and combustion exhaust gas from Refomar 2 are mixed to form an MCF.
It is sent to the cathode side of Cl. Furthermore, mixing the combustion exhaust gas from the re-former and sending it to the cathode side increases the gas temperature at the cathode inlet and supplies CO2 as a source of CO3-, which migrates from the cathode side to the anode side in MCPCI tile a. This is to do so. A part of the exhaust gas from the cathode side of the MCFCI is sent to the air preheater 4 as described above, and the remaining part is sent to the evaporator 5 with a superheater.
過熱器付蒸発器５は蒸発器５ａと過熱器５ｂからなり、
カソードからの排気の熱で蒸発した水蒸気一部は過熱器
５ｂで加熱されて過熱蒸気となり、残りの蒸気は外部に
送られる。過熱蒸気は先に述べたように天然ガスと混合
され、リフオーマ２に送られる。上記混合ガスはリフオ
ーマ２で改質されて燃料ガスとなり、ＭＣＰＣＩのアノ
ードに送られる。ＭＣＰＣＩのアノードからの排ガス中
には未反応の水素ガス（Ｈ２）と−酸化炭素ガス（Ｃ○
）が含まれているので、上述のように燃料としてリフオ
ーマ２に送られ空気と共に燃焼される。そしてＭＣＦＣ
ｌのアノードからの排ガスは略７００℃程度の高温なの
で、リフオーマ２に送られる途中で天然ガス予熱器７を
通過し、リフオーマ２に送られる天然ガスを予熱する。The evaporator with superheater 5 consists of an evaporator 5a and a superheater 5b,
A portion of the water vapor evaporated by the heat of the exhaust gas from the cathode is heated by the superheater 5b to become superheated vapor, and the remaining vapor is sent to the outside. The superheated steam is mixed with natural gas as described above and sent to the reformer 2. The mixed gas is reformed in the reformer 2 to become a fuel gas, which is sent to the anode of the MCPCI. The exhaust gas from the MCPCI anode contains unreacted hydrogen gas (H2) and -carbon oxide gas (C○
), it is sent as fuel to the reformer 2 and burned together with air as described above. and MCFC
Since the exhaust gas from the anode 1 has a high temperature of about 700° C., it passes through a natural gas preheater 7 on the way to the reheater 2 and preheats the natural gas sent to the reheater 2.
天然ガスは天然ガス圧縮機６により昇圧され天然ガス予
熱器７で昇温された後、上述のように水蒸気と共にリフ
オーマ２に送られる。After the natural gas is pressurized by the natural gas compressor 6 and heated by the natural gas preheater 7, it is sent to the reformer 2 together with steam as described above.
〈発明が解決しようとする問題点〉
以上述べたような従来の常圧型燃料電池発電プラントに
おいて、動力を消費するのは空気圧縮機３と天然ガス圧
縮機６であるが、天然ガスと空気の流量は重量比で略１
：８０となっているので、動力消費の大部分は空気圧縮
機３である。<Problems to be solved by the invention> In the conventional normal pressure fuel cell power generation plant as described above, power is consumed by the air compressor 3 and the natural gas compressor 6. The flow rate is approximately 1 in terms of weight ratio.
:80, most of the power consumption is from the air compressor 3.
空気圧縮機３によりＭＣＦＣｌで発生する電力の一部が
消費されるので、プラントとしての送電端発電効率が低
下する。Since a part of the electric power generated by MCFCl is consumed by the air compressor 3, the power generation efficiency at the transmission end of the plant decreases.
〈発明の目的〉
本発明は従来技術のかかる問題点に鑑み案出されたもの
で、空気予熱器４からの加熱圧縮空気を膨脹タービン１
０に導入して１．２ｋｇ／ ｃｍ２ ａ程度まで減圧す
ると共に膨脹タービン１０を回転させ、該膨脹タービン
１０により空気圧縮機３を駆動することにより、プラン
ト内の消費電力を削減し、それによりプラントとしての
送電端発電効率を向上させた常圧型燃料電池発電プラン
トを提供することを目的とする。<Object of the Invention> The present invention has been devised in view of the problems of the prior art.
0 and reduce the pressure to about 1.2 kg/cm2 a, rotate the expansion turbine 10, and drive the air compressor 3 by the expansion turbine 10, thereby reducing power consumption in the plant, thereby reducing the pressure in the plant. The purpose of the present invention is to provide a normal pressure fuel cell power generation plant with improved transmission end power generation efficiency.
〈問題点を解決するための手段〉
上記目的を達成するため本発明の常圧型燃料電池発電プ
ラントは、第１図に示すように溶融炭酸塩型燃料電池（
ＭＣＦＣ）１と、ＭＣＦＣｌのアノード側からの排気と
圧縮空気を共に受入れて燃焼させ、燃焼排ガスをＭＣＦ
Ｃｌのカソード側に送るとともに、天然ガス等炭化水素
を含むガスと水蒸気を受入れて、上記燃焼熱で加熱して
改質し、水素と一酸化炭素を含む燃料ガスを生成させて
、ＭＣＦＣのアノード側に送るリフオーマ２と、該ＭＣ
ＦＣのカソード側とリフオーマでの燃焼用に圧縮空気を
送る空気圧縮Ｉ１３と、該圧縮Ｉ１３からの圧縮空気と
ＭＣＦＣのカソード側からの排気をそれぞれ流通させて
熱交換し圧縮空気を加熱する空気予熱器４と、ＭＣＦＣ
のカソード側からの排気を熱源として、リフオーマに送
られる上記水蒸気を発生させる過熱器付蒸発器５とを備
えた常圧型燃料電池発電プラントにおいて、上記空気予
熱器４からの加熱圧縮空気を導入して回転し、上記空気
圧縮機を駆動する膨脹タービン１０を設け、該膨脹ター
ビンの排気は１．２に！ＩＩ／ Ｃｍ２８程度まで減圧
されており、ＭＣＦＣのカソード側とリフオーマに送ら
れるようになっていることを特徴とするものである。<Means for Solving the Problems> In order to achieve the above object, the atmospheric pressure fuel cell power generation plant of the present invention uses a molten carbonate fuel cell (
MCFC) 1, exhaust gas from the anode side of MCFCl and compressed air are both accepted and combusted, and the combustion exhaust gas is transferred to the MCF.
In addition to sending Cl to the cathode side, gas containing hydrocarbons such as natural gas and water vapor are received, heated and reformed using the heat of combustion, and a fuel gas containing hydrogen and carbon monoxide is generated, which is then connected to the anode of the MCFC. Refoma 2 sent to the side and the MC
An air compressor I13 that sends compressed air for combustion between the cathode side of the FC and the refoamer, and an air preheater that heats the compressed air by circulating the compressed air from the compressor I13 and the exhaust gas from the cathode side of the MCFC. 4 and MCFC
In a normal-pressure fuel cell power generation plant equipped with an evaporator with a superheater 5 that uses exhaust gas from the cathode side as a heat source to generate the steam sent to the refoamer, heated compressed air from the air preheater 4 is introduced. An expansion turbine 10 is provided which rotates to drive the air compressor, and the exhaust gas of the expansion turbine is 1.2! It is characterized in that it is depressurized to about II/Cm28 and is sent to the cathode side of the MCFC and the refoamer.
〈作 用〉
リフオーマ２に送られる空気は空気圧縮ｔａ３で従来よ
りも高圧の略２，４ｋ（１／ ｃｍｚ ａ程度まで昇圧
して、空気予熱器４に送り、ここで加熱後膨脹タービン
１０に送られここで１．２ｋｇ／ ｃｍ２ ａ程度まで
減圧すると共に、該タービン１０を回転させる。タービ
ン１０の排気はＭＣＦＣｌのカソード側に送られるとと
もに、リフオーマ２に燃焼用として送られるようになっ
ている。<Operation> The air sent to the re-former 2 is compressed by the air compressor TA3 to approximately 2.4K (1/cmz a), which is a higher pressure than before, and sent to the air preheater 4, where it is heated and then sent to the expansion turbine 10. There, the pressure is reduced to about 1.2 kg/cm2 a, and the turbine 10 is rotated.The exhaust gas of the turbine 10 is sent to the cathode side of the MCFCl, and is also sent to the rifoma 2 for combustion. .
膨脹タービン１０により空気圧縮機３を駆動するように
したので空気圧縮機駆動用の電力がほぼ不要となり、プ
ラントとしての送電端発電効率が向上する。Since the air compressor 3 is driven by the expansion turbine 10, almost no electric power is required for driving the air compressor, and the power generation efficiency at the transmission end of the plant is improved.
〈実 施 例〉 以下本発明の一実施例を図面を参照しつつ説明する。<Example> An embodiment of the present invention will be described below with reference to the drawings.
第１図は本発明の常圧型燃料電池発電プラントのフロー
シートである。第１図において１はＭＣＦＣ，２はリフ
オーマ、３は空気圧縮機、４は空気予熱器、５は過熱器
付蒸発器、６は天然ガス圧縮機、７は天然ガス予熱器、
１０は膨脹タービン、１１は補助空気予熱器、１２は補
助電動機である。FIG. 1 is a flow sheet of a normal pressure fuel cell power generation plant of the present invention. In Fig. 1, 1 is an MCFC, 2 is a reheater, 3 is an air compressor, 4 is an air preheater, 5 is an evaporator with superheater, 6 is a natural gas compressor, 7 is a natural gas preheater,
10 is an expansion turbine, 11 is an auxiliary air preheater, and 12 is an auxiliary electric motor.
尚本発明の燃料電池発電プラントと従来のものとの相違
は空気圧縮機３駆動用の膨脹タービン１０と、該タービ
ン１０の排気加熱用の補助空気予熱器１１とを追加した
ことなので、その部分を中心に説明し、従来と同じ部分
については同一の付号を用いてあり、説明は省略する。The difference between the fuel cell power generation plant of the present invention and the conventional one is that an expansion turbine 10 for driving the air compressor 3 and an auxiliary air preheater 11 for heating the exhaust gas of the turbine 10 are added. The explanation will focus on the following, and the same numbers will be used for the same parts as before, and the explanation will be omitted.
空気は空気圧縮６３で略２−４ｋｏ／ ｃｍ２ ａまで
昇圧され、その際断熱圧縮されるので略１２０℃まで昇
温する。さらに圧縮空気は空気予熱器４でＭＣＦＣｌの
カソードからの略７００℃の排気の一部と熱交換されて
、略５５０℃まで昇温する。Air is pressurized to about 2-4 ko/cm2 a by air compression 63, and is adiabatically compressed at this time, so the temperature is raised to about 120°C. Further, the compressed air is heated in the air preheater 4 with a part of the approximately 700°C exhaust gas from the MCFCl cathode, and is heated to approximately 550°C.
空気予熱器４出口の略２，４ｋａ／ｃｍ２ ａ、 ５５
０℃の空気は膨脹タービン１０を通って略１，２ｋｏ／
ｃｍ２ａ、略４５０℃まで減圧、減温すると共に、タ
ービン１０を回転させて、空気圧縮機３を駆動する。Air preheater 4 outlet approximately 2.4ka/cm2 a, 55
Air at 0°C passes through the expansion turbine 10 at approximately 1.2 ko/
The pressure and temperature are reduced to cm2a, approximately 450° C., and the turbine 10 is rotated to drive the air compressor 3.
膨脹タービン１０の排気は補助空気予熱器１１で、ＭＣ
ＦＣｌのカソードからの排気の内空気予熱器に使用した
残部と熱交換し、タービン排気は略５０５℃まで昇温し
た後ＭＣＦＣ１のカソード側に、送られると共にリフオ
ーマ２に燃焼用空気として送られる。尚本実施例では補
助空気予熱器１１を使用しているが、空気予熱器４、膨
脹タービン１０の条件設定によっては補助空気予熱器１
１は省略できる。The exhaust gas of the expansion turbine 10 is supplied to the auxiliary air preheater 11, and the MC
The exhaust gas from the FCl cathode exchanges heat with the remainder of the air used in the air preheater, and the turbine exhaust heats up to about 505° C., and then is sent to the cathode side of the MCFC 1 and sent to the re-former 2 as combustion air. Although the auxiliary air preheater 11 is used in this embodiment, the auxiliary air preheater 1 may be used depending on the condition settings of the air preheater 4 and the expansion turbine 10.
1 can be omitted.
以下２００ｋＷ Ｍ ＣＦ Ｃ発電プラントについて従
来のものと本発明のものとを比較する。第１表は空気圧
縮機まわりの圧力、温度条件の比較、図は従来例のプラ
ントとしてのエネルギーフローであり、第５図は本発明
のプラントとしてのエネルギーフローである。Below, a comparison will be made between a conventional 200kW MCFC power plant and a 200kW MCFC power plant according to the present invention. Table 1 shows a comparison of pressure and temperature conditions around the air compressor, the figure shows the energy flow as a conventional plant, and FIG. 5 shows the energy flow as a plant of the present invention.
第 １ 表
第 ２ 表
第２表（つづき）
上記第２表がら明らかなように本発明によれば空気圧縮
機３の駆動動力は、膨脹タービンによりほぼ全面的に供
給されるので、送電端効率はほぼ３．１％向上する。Table 1 Table 2 Table 2 (Continued) As is clear from Table 2 above, according to the present invention, the driving power of the air compressor 3 is almost entirely supplied by the expansion turbine, so that the net power efficiency is low. will improve by approximately 3.1%.
〈発明の効果〉
以上述べたように本発明の常圧型燃料電池発電プラント
には以下の効果がある。<Effects of the Invention> As described above, the normal pressure fuel cell power generation plant of the present invention has the following effects.
（１） 膨脹タービンを設け、空気予熱器出口の圧油
り竺ｆ−墳１１丁開（１売ε江憤−九■粘するようにし
たので、所内動力がほぼ全面的にこの膨脹タービンによ
りまかなわれ、膨脹タービンの出力圧力は１．２ｋＯ／
Ｃｍ２８程度にしたので燃料電池まわりはほぼ常圧とし
たままで燃料電池で発電する電力がほぼそのまま発電所
外へ取り出せるので発電プラントとして送電端効率が向
上する。(1) An expansion turbine was installed so that the pressure oil at the outlet of the air preheater would be viscous. The output pressure of the expansion turbine is 1.2kO/
Since the pressure is set to about Cm28, the electricity generated by the fuel cell can be taken out of the power plant almost as is while the pressure around the fuel cell remains almost normal, improving the net efficiency of the power generation plant.
第１図は本発明の常圧型燃料電池発電プラントのプロセ
スフローシート、第２図は従来の常圧型燃料電池発電プ
ラントのプロセスシート、第３図は溶融炭酸塩型燃料電
池の説明図、第４図は従来例のプラントとしてのエネル
ギーフロー、第５図は本発明のプラントとしてのエネル
ギー７０−である。
１・・・・・・ＭＣＦＣ
２・・・・・・リフオーマ
３・・・・・・空気圧縮機
４・・・・・・空気予熱器
５・・・・・・過熱器付蒸発器
１０・・・・・・膨脹タービン
１１・・・・・・補助空気予熱器
第 １ 図
第 ３ 図Fig. 1 is a process flow sheet for a normal pressure fuel cell power generation plant of the present invention, Fig. 2 is a process sheet for a conventional normal pressure fuel cell power plant, Fig. 3 is an explanatory diagram of a molten carbonate fuel cell, and Fig. 4 is an explanatory diagram of a molten carbonate fuel cell. The figure shows the energy flow as a conventional plant, and FIG. 5 shows the energy flow 70- as the plant of the present invention. 1...MCFC 2...Reformer 3...Air compressor 4...Air preheater 5...Evaporator with superheater 10. ...Expansion turbine 11...Auxiliary air preheater Fig. 1 Fig. 3
Claims (1)
ード側からの排気と圧縮空気を共に受入れて燃焼させ、
燃焼排ガスをＭＣＦＣのカソード側に送るとともに、天
然ガス等の炭化水素を含むガスと水蒸気を受入れて、上
記燃焼熱で加熱して改質し、水素と一酸化炭素を含む燃
料ガスを生成させて、ＭＣＦＣのアノード側に送るリフ
ォーマと、上記ＭＣＦＣのカソード側と上記リフォーマ
での燃焼用に圧縮空気を送る空気圧縮機と、該圧縮機か
らの圧縮空気とＭＣＦＣのカソード側からの排気をそれ
ぞれ流通させて熱交換し圧縮空気を加熱する空気予熱器
と、ＭＣＦＣのカソード側からの排気を熱源として、リ
フォーマに送られる上記水蒸気を発生させる過熱器付蒸
発器とを備えた常圧型燃料電池発電プラントにおいて、
上記空気予熱器からの加熱圧縮空気を導入して回転し、
上記空気圧縮機を駆動する膨脹タービンを設け、該膨脹
タービンの排気はＭＣＦＣのカソード側とリフォーマに
送られるようになっていることを特徴とする常圧型燃料
電池発電プラント。A molten carbonate fuel cell (MCFC) receives and burns exhaust gas and compressed air from the anode side of the MCFC,
The combustion exhaust gas is sent to the cathode side of the MCFC, and gas containing hydrocarbons such as natural gas and steam are received and heated and reformed using the heat of combustion to generate fuel gas containing hydrogen and carbon monoxide. , a reformer that sends compressed air to the anode side of the MCFC, an air compressor that sends compressed air for combustion in the cathode side of the MCFC and the reformer, and the compressed air from the compressor and the exhaust gas from the cathode side of the MCFC, respectively. A normal pressure fuel cell power generation plant equipped with an air preheater that exchanges heat and heats compressed air, and an evaporator with a superheater that uses exhaust gas from the cathode side of the MCFC as a heat source to generate the steam that is sent to the reformer. In,
The heated compressed air from the air preheater is introduced and rotated,
A normal pressure fuel cell power generation plant, comprising: an expansion turbine for driving the air compressor, and exhaust gas from the expansion turbine is sent to the cathode side of the MCFC and the reformer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60289256A JPH0828225B2 (en) | 1985-12-24 | 1985-12-24 | Atmospheric pressure fuel cell power plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60289256A JPH0828225B2 (en) | 1985-12-24 | 1985-12-24 | Atmospheric pressure fuel cell power plant |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62150662A true JPS62150662A (en) | 1987-07-04 |
| JPH0828225B2 JPH0828225B2 (en) | 1996-03-21 |
Family
ID=17740801
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60289256A Expired - Lifetime JPH0828225B2 (en) | 1985-12-24 | 1985-12-24 | Atmospheric pressure fuel cell power plant |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0828225B2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62234871A (en) * | 1986-04-04 | 1987-10-15 | Hitachi Ltd | Fuel cell power generating plant |
| JPH01157065A (en) * | 1987-12-14 | 1989-06-20 | Sanyo Electric Co Ltd | Fuel cell power generating system |
| CN114243052A (en) * | 2021-11-19 | 2022-03-25 | 上海鲲华新能源科技有限公司 | Efficient energy storage method combining compressed air energy storage and hydrogen energy storage |
| CN114628731A (en) * | 2020-12-12 | 2022-06-14 | 中国科学院大连化学物理研究所 | Gas feeding device of fuel cell system and control method thereof |
| CN117317333A (en) * | 2023-11-27 | 2023-12-29 | 常州创氢能源科技有限公司 | High-temperature proton exchange membrane fuel cell stack for aviation turbine pressurization |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5719974A (en) * | 1980-07-09 | 1982-02-02 | Toshiba Corp | Molten salt fuel cell system |
| JPS60160574A (en) * | 1984-01-30 | 1985-08-22 | Shimadzu Corp | Turbo-compressor system for fuel cell power generation |
-
1985
- 1985-12-24 JP JP60289256A patent/JPH0828225B2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5719974A (en) * | 1980-07-09 | 1982-02-02 | Toshiba Corp | Molten salt fuel cell system |
| JPS60160574A (en) * | 1984-01-30 | 1985-08-22 | Shimadzu Corp | Turbo-compressor system for fuel cell power generation |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62234871A (en) * | 1986-04-04 | 1987-10-15 | Hitachi Ltd | Fuel cell power generating plant |
| JPH01157065A (en) * | 1987-12-14 | 1989-06-20 | Sanyo Electric Co Ltd | Fuel cell power generating system |
| CN114628731A (en) * | 2020-12-12 | 2022-06-14 | 中国科学院大连化学物理研究所 | Gas feeding device of fuel cell system and control method thereof |
| CN114628731B (en) * | 2020-12-12 | 2023-07-14 | 中国科学院大连化学物理研究所 | Gas feeding device of fuel cell system and control method thereof |
| CN114243052A (en) * | 2021-11-19 | 2022-03-25 | 上海鲲华新能源科技有限公司 | Efficient energy storage method combining compressed air energy storage and hydrogen energy storage |
| CN117317333A (en) * | 2023-11-27 | 2023-12-29 | 常州创氢能源科技有限公司 | High-temperature proton exchange membrane fuel cell stack for aviation turbine pressurization |
| CN117317333B (en) * | 2023-11-27 | 2024-01-30 | 常州创氢能源科技有限公司 | High-temperature proton exchange membrane fuel cell stack for aviation turbine pressurization |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0828225B2 (en) | 1996-03-21 |
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