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CN106816613B - An indirect internal reforming solid oxide fuel cell stack - Google Patents

An indirect internal reforming solid oxide fuel cell stack Download PDF

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Publication number
CN106816613B
CN106816613B CN201611258506.8A CN201611258506A CN106816613B CN 106816613 B CN106816613 B CN 106816613B CN 201611258506 A CN201611258506 A CN 201611258506A CN 106816613 B CN106816613 B CN 106816613B
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fuel gas
reforming
chamber
initial
stack
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CN106816613A (en
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蒲健
杨佳军
李箭
池波
颜冬
黄维
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Huazhong University of Science and Technology
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Huazhong University of Science and Technology
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/06—Combination of fuel cells with means for production of reactants or for treatment of residues
    • H01M8/0606—Combination of fuel cells with means for production of reactants or for treatment of residues with means for production of gaseous reactants
    • H01M8/0612—Combination of fuel cells with means for production of reactants or for treatment of residues with means for production of gaseous reactants from carbon-containing material
    • H01M8/0618—Reforming processes, e.g. autothermal, partial oxidation or steam reforming
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/06—Combination of fuel cells with means for production of reactants or for treatment of residues
    • H01M8/0606—Combination of fuel cells with means for production of reactants or for treatment of residues with means for production of gaseous reactants
    • H01M8/0612—Combination of fuel cells with means for production of reactants or for treatment of residues with means for production of gaseous reactants from carbon-containing material
    • H01M8/0625—Combination of fuel cells with means for production of reactants or for treatment of residues with means for production of gaseous reactants from carbon-containing material in a modular combined reactor/fuel cell structure
    • H01M8/0631—Reactor construction specially adapted for combination reactor/fuel cell
    • 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

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Fuel Cell (AREA)
  • Hydrogen, Water And Hydrids (AREA)

Abstract

The invention discloses a kind of indirect internal reforming solid oxide fuel cell piles, the pile includes: solid oxide fuel cell and the reactor core that metal connector is alternately stacked to, conventional air-flow buffer chamber, it further include an indirect internal reforming fuel gas into cushion chamber, the indirect internal reforming fuel gas into cushion chamber include initial fuel gas into cushion chamber and fuel gas reformer chamber, initial fuel gas is into cushion chamber for the buffering after initial hydrocarbon fuel gas entrance, fuel gas reformer chamber is used to initial hydrocarbon fuel gas being restructured as carbon monoxide, hydrogen and carbon dioxide, and it is delivered to the pile reactor core.The problems such as poisoning the invention avoids directly interior reformation bring anode carbon distribution and sulphur, while heating and heat-exchange system required for outer reformation are eliminated again, take full advantage of the electrochemical reaction heat release of pile itself.While simplifying system design, the fuel availability of solid oxide fuel cell is also improved.

Description

A kind of indirect internal reforming solid oxide fuel cell pile
Technical field
The invention belongs to clean reproducible energy fields, fire more particularly, to a kind of indirect internal reforming soild oxide Expect battery stack.
Background technique
Solid oxide fuel cell (SOFC) possesses high generating efficiency, low greenhouse gas emissions, with quick The correlation theory and investigation of materials of development are increasingly becoming one kind i.e. by commercialized electrochemical generating unit.Because of its groundwork At relatively high temperature (550~1000 DEG C), SOFC has flexible fuel selectivity, in addition to traditional hydrogen (H2), methane (CH4), natural gas, biogas, methanol, the hydrocarbon gas such as ethyl alcohol all can be used as the fuel of SOFC.In addition to H2, CO, other hydrocarbon fuels Catalytic reforming will be passed through before the supply, be converted into H2, based on CO ingredient gas, could be used in SOFC.With it is economical, For widely used natural gas, main component gas CH4, reforming reaction process includes:
CH4+H2O→CO+3H2 (1)
CO+H2O→CO2+H2 (2)
The above reforming reaction need to be completed in relatively high temperature through catalyst.Reformation mode more common at present has directly Connect interior reformation and outer reformation two ways.
Current more common SOFC anode material mixes system with the zirconium oxide (YSZ) of stabilized with yttrium oxide for metallic nickel (Ni) Standby cermet material (Ni-YSZ), this material is in addition to function needed for can completing anode reaction, moreover it is possible to be CH4Weight Whole offer catalytic action.Reforming in directly is by CH4It is supplied directly to anode in certain proportion with vapor, completes to reform anti- H is realized while answering2Reduction process, by CH4Chemical energy be converted into electric energy, whole process is all completed on anode.This Kind reformation mode has following advantage: (1) reforming reaction carries out inside pile, and pile self heat can be made full use of to complete It reforms, there is high fuel availability and generating efficiency；(2)H2Consumption with CO promotes CH4Reforming reaction, further mention High reforming efficiency；(3) electricity generation system based on hydrocarbon fuel is simplified, reforming reaction is not individually for and combustion chamber is provided and is changed Hot device.But now conventional direct interior reforming technique haves the shortcomings that fatal, i.e., the Carbon deposition of anode poisons with sulphur.Ni- YSZ can lead to the formation of simple substance carbon other than providing catalyst for methane reforming reaction with catalytic methane cracking reaction, this A little carbon can deposit on metallic Ni particles, cover the active reaction position of Ni, reduce the reforming efficiency of hydrocarbon fuel.Simple substance carbon also can It is deposited at the active three phase boundary of anode, reduces the reactivity of anode, lead to cell performance decay.Although increasing can be passed through Add the ratio of vapor, add other compositions come a possibility that reducing the deposition of carbon, but Carbon deposition can not be avoided completely.Have People proposes the concept of gradient anode, i.e., will reform layer and be set to anode surface, to complete reforming reaction before gas enters anode, Related material system research is not mature enough, and the catalytic efficiency of anode surface reformation layer and service life are all to be improved.
Since directly interior reform cannot avoid the problem that Carbon deposition completely, currently, outer reform the quilt in SOFC electricity generation system It is widely used.Outer reformation is that a combustion chamber and heat exchanger are independently arranged outside pile, at suitable temperature and catalyst, Fuel gas can effectively improve the steady in a long-term of pile into just completion reformation before pile to avoid deposition of the carbon on anode Property.Reformer is heated due to needing to separately provide fuel gas, it is outer to reform whole fuel availability not as good as directly interior It reforms, and increases the complexity of system.
Summary of the invention
Aiming at the above defects or improvement requirements of the prior art, the present invention provides a kind of indirect internal reforming soild oxides Reforming reaction is limited to fuel and entered by fuel cell pile its object is to design pile unique advantage using outflow chamber Gas buffer it is intracavitary, pass through the cavity body structure design of the indirect internal reforming cushion chamber of the initial hydrocarbon fuel gas of setting, regulation weight The rate of whole reaction, thus solves the directly interior reformation bring anode carbon distribution of the prior art and sulphur poisons, and reforms design institute outside The technical issues of independent hot tank (including combustion chamber and heat exchanger) needed.
To achieve the above object, according to one aspect of the present invention, a kind of indirect internal reforming soild oxide combustion is provided Expect battery stack, including is replaced pile reactor core made of stacking as solid oxide fuel cell and metal connector and be located at Three air-flow buffer chambers in the outside of the pile reactor core, these three air-flow buffer chambers are respectively oxic gas into cushion chamber, oxidation Gas goes out cushion chamber and fuel gas goes out cushion chamber.
The battery stack further includes an indirect internal reforming fuel gas into cushion chamber, and the indirect internal reforming fuel gas is into slow It rushes chamber and the fuel gas and goes out cushion chamber and be located on opposite two sides of the pile reactor core, the indirect internal reforming fuel gas It include initial fuel gas into cushion chamber and fuel gas reformer chamber into cushion chamber, the initial fuel gas is used for initially into cushion chamber Hydrocarbon fuel gas enter after buffering, the fuel gas reformer chamber be used for by initial hydrocarbon fuel gas be restructured as carbon monoxide, Hydrogen and carbon dioxide, and it is delivered to the pile reactor core.
Preferably, the fuel gas reformer chamber is located at the initial fuel gas between cushion chamber and the pile reactor core, The fuel gas reformer chamber is located at the initial fuel gas to keep apart into cushion chamber and the pile reactor core, to prevent initial carbon Hydrogen fuel gas is directly entered the pile reactor core.
Preferably, the fuel gas reformer chamber is provided with Reforming catalyst material.
Preferably, the Reforming catalyst material is fixed on the fuel gas reformer chamber by mechanical fastening system.
Preferably, the fixed method of the mechanical fastening system specifically: in the Reforming catalyst material perpendicular to combustion Expect that the edge of two sides of gas airflow direction is respectively arranged circle protrusion, the protrusion and the indirect internal reforming fuel gas are into slow The recesses for rushing the corresponding position of chamber close, so that the Reforming catalyst material be made to be fixed on the fuel gas reformer chamber.
Preferably, the Reforming catalyst material is porous ceramic film material.
Preferably, the porous ceramic film material surface is attached with reforming catalyst.
Preferably, the specific surface area of the Reforming catalyst material is not less than 0.2m2/g。
Preferably, the specific surface area of the Reforming catalyst material is 0.2~0.3m2/g。
Preferably, the initial fuel gas is hydrocarbon fuel.
Preferably, the initial fuel gas is methane, methanol or ethyl alcohol.
In general, through the invention it is contemplated above technical scheme is compared with the prior art, can obtain down and show Beneficial effect.
(1) present invention proposes a kind of indirect internal reforming solid oxide fuel cell pile, designs pile using outflow chamber Unique advantage, the gas buffer that reforming reaction is limited to fuel entrance is intracavitary, guarantees to be completed before fuel gas enters anode Reforming reaction；
(2) porous ceramic film material that the fuel gas reformer chamber in indirect internal reforming fuel gas cushion chamber of the invention uses, As the catalyst carrier of fuel reforming gas, there is very big specific surface area, initial carbon hydrogen fuel gas can be made in relatively short distance The interior reformation for completing fuel gas, so that avoiding fuel gas from cracking on anode generates carbon distribution；
(3) present invention is designed by the cavity body structure of cushion chamber, can regulate and control the rate of fuel gas reforming reaction.
(4) indirect internal reforming mode of the invention avoids reformation bring anode carbon distribution and sulphur in directly and poisons, simultaneously Fuel gas reformer chamber and pile reactor core of the invention adjoins design, and Reforming catalyst reaction can be made to utilize the heat of pile itself, The independent hot tank (including combustion chamber and heat exchanger) that outer reformation design is wanted is eliminated, pile self heat is taken full advantage of, System design is simplified, fuel availability is improved.
Detailed description of the invention
Fig. 1 is the structure according to the indirect internal reforming solid oxide fuel cell pile of one preferred implementation of the present invention Schematic diagram；
Fig. 2 is the sectional view of fuel reforming chamber.
In all the appended drawings, identical appended drawing reference is used to denote the same element or structure, in which:
1- pile reactor core；2- indirect internal reforming fuel gas is into cushion chamber；21- initial fuel gas is into cushion chamber；22- fuel gas Reformer chamber；23- mechanical fastening system；3- fuel gas goes out cushion chamber；4- oxic gas is into cushion chamber；5- oxic gas goes out cushion chamber； 221- Reforming catalyst material.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and It is not used in the restriction present invention.As long as in addition, technical characteristic involved in the various embodiments of the present invention described below Not constituting a conflict with each other can be combined with each other.
A kind of indirect internal reforming solid oxide fuel cell pile, including connected by solid oxide fuel cell and metal Junctor replaces cuboid pile reactor core and three air-flow buffer chambers positioned at the outside of pile reactor core made of stacking, these three Air-flow buffer chamber is respectively that oxic gas goes out cushion chamber into cushion chamber, oxic gas and fuel gas goes out cushion chamber.
Battery stack further includes an indirect internal reforming fuel gas into cushion chamber, and the indirect internal reforming fuel gas is into cushion chamber Go out air-flow cushion chamber with fuel gas to be located on opposite two sides of the pile reactor core, indirect internal reforming fuel gas is into cushion chamber Including initial fuel gas into cushion chamber and fuel gas reformer chamber, initial fuel gas into cushion chamber for initial hydrocarbon fuel gas into Buffering after entering, fuel gas reformer chamber are used to initial hydrocarbon fuel gas being restructured as carbon monoxide, hydrogen and carbon dioxide, and It is delivered to the pile reactor core.
Initial fuel gas is not limited to traditional methane gas, further includes the reproducible hydrocarbon fuel such as methanol, ethyl alcohol, foundation Different hydrocarbon fuels selects suitable reforming catalyst.
Fuel gas reformer chamber is located at initial fuel gas between cushion chamber and the pile reactor core, while also by initial fuel Gas is opened into cushion chamber and the isolation of pile reactor core, so that initial fuel gas enters after cushion chamber, cannot directly enter pile reactor core, But can only enter to fuel gas reformer chamber and reformed, it reforms later product gas bag and includes carbon monoxide, hydrogen and titanium dioxide Carbon enters back into pile reactor core.Between fuel gas reformer chamber and pile reactor core be filled with sealing material, the sealing material and other three It is glass ceramic material as the sealing material that a air-flow buffer chamber is arranged between pile reactor core respectively.Each air-flow buffer Reliable air seal can be realized between chamber and pile reactor core by glass-ceramic seal materials.
Fuel gas reformer chamber is equipped with Reforming catalyst material, and Reforming catalyst material is fixed on fuel by mechanical fastening system Gas reformer chamber, to prevent Reforming catalyst material from generating movement under the action of air-flow or other power.
Mechanical fastening system is fixed, a kind of preferred mode are as follows: in Reforming catalyst material perpendicular in fuel gas air-flow A circle minute protrusions are respectively designed in the edge of two sides in direction, this circle minute protrusions and indirect internal reforming fuel gas into The recesses of cushion chamber corresponding position close so that Reforming catalyst material is fixed in cushion chamber, with prevent its air-flow or its It is moved under the action of its power, while being also prevented from initial hydrocarbon fuel gas and being directly entered pile reactor core.
Material similar in Reforming catalyst material selection and air flow chamber cushion chamber material thermal expansion coefficient, can be with CatalystT Or directly adopt the Reforming catalyst material with catalytic action.Reforming catalyst material is porous structure, and specific surface area is not small In 0.2m2/ g, preferably 0.2~0.3m2/g.Reforming catalyst material is preferably porous ceramic film material, and porous ceramic film material is used as carbon The carrier of hydrogen fuel reforming catalyst.Reforming catalyst is evenly affixed to porous ceramic film material surface, to improve reforming catalyst Service efficiency.Porous ceramic film material is preferably cordierite honeycomb ceramic material.
Reforming catalyst is can designed, designed or the hydrocarbon fuel reforming catalyst using the prior art.
Reforming catalyst material its be parallel to airflow direction length need to be less than fuel gas stream chamber internal depth, guarantee initial fuel Gas cushion chamber has certain space, provides enough spaces for fuel gas buffering, while avoiding initial fuel gas and reactor core side Directly contact or be directly entered reactor core；Its just embeddable fuel gas need to be guaranteed into cushion chamber perpendicular to the size of airflow direction It is interior.
Material category, size, hole arrangement, hole density and the specific surface area of Reforming catalyst material will have a direct impact on initial combustion Expect gas in the reforming efficiency of fuel gas reformer chamber, therefore the selection of Reforming catalyst material, the selection of catalyst, fuel gas reformer chamber The optimization of the design of size, hole density and its specific surface area is critically important, and basic demand is the need to ensure that initial fuel gas quilt It is restructured as hydrogen, carbon monoxide and carbon dioxide completely.
The optimum working temperature of reforming catalyst is lower than pile operating temperature, within 50 DEG C of pile operating temperature, The heat of itself when being worked using pile.Fuel gas reformer chamber is longer along the length of fuel gas airflow direction, catalytic reforming Path is longer, and efficiency is higher, but its length is unsuitable too long, otherwise due to influencing the weight of reforming catalyst there are temperature gradient Whole catalytic effect.Certainly, it can also be preheated to initial fuel gas, to make up far from pile reactor core side catalytic reforming temperature It is too low and influence catalytic efficiency.
Initial fuel gas air inlet need to be distributed on the upside of air flow chamber or downside, guarantees that gas is uniformly distributed in cushion chamber, It prevents gas integrated distribution in the regional area of air flow chamber, influences the efficiency of gas distribution and fuel reforming.
The present invention is designed by the cavity body structure of cushion chamber, can regulate and control the rate of fuel gas reforming reaction.For example pass through Adjust the specific surface area of Reforming catalyst material, catalyst type, Reforming catalyst material overall dimensions, regulation initial fuel gas with The Reforming catalyst effective reaction time and contact active site quantity of catalyst, to adjust the rate of fuel gas reforming reaction.? Corresponding fuel gas reformer chamber can be designed according to type, the characteristic of specific initial fuel gas.
Based on the indirect internal reforming solid oxide fuel cell pile that the above thinking is constructed, indirect internal reforming fuel gas into The Reforming catalyst material of the fuel gas reformer chamber of cushion chamber has very big specific surface area, and fuel can be completed in relatively short distance The reformation of gas, so that avoiding fuel gas from cracking on anode generates carbon distribution.In addition, the integration of reformer chamber and pile simplifies system Composition, the design that the two is adjoined can make full use of pile self heat, improve fuel availability.
The following are embodiments:
Fig. 1 is the structure according to the indirect internal reforming solid oxide fuel cell pile of a preferred embodiment of the invention Schematic diagram.As shown in Figure 1, the indirect internal reforming solid oxide fuel cell pile of a preferred embodiment according to the invention Specifically include that pile reactor core 1, indirect internal reforming fuel gas go out cushion chamber 3, oxic gas into cushion chamber 4 into cushion chamber 2, fuel gas Go out cushion chamber 5 with oxic gas.
Fig. 2 show indirect internal reforming fuel gas of the invention into the sectional view of cushion chamber 2, indirect internal reforming fuel gas into Cushion chamber 2 includes having the initial fuel gas of certain space into cushion chamber 21 and fuel gas reformer chamber 22, fuel gas reformer chamber 22 It is embedded with Reforming catalyst material 221.
Reforming catalyst material 221 is fixed in fuel gas reformer chamber 22 by mechanical fastening system 23, Reforming catalyst material 221, which are each provided with circle protrusion at the edge of two sides perpendicular to fuel gas air-flow, (only depicts Reforming catalyst material in Fig. 2 The minute protrusions for expecting the surrounding close to pile reactor core side, the protrusion close to initial fuel gas into the side of cushion chamber are not drawn Out), the recesses of the protrusion and indirect internal reforming fuel gas into 2 corresponding position of cushion chamber close, so that Reforming catalyst material is solid It is scheduled in fuel gas reformer chamber 22, prevents Reforming catalyst material 221 from moving under the action of air-flow or other power, can also prevent Initial hydrocarbon fuel gas is directly entered the active reaction area of pile.
Fuel gas reformer chamber 22 shown in Fig. 2 is a preferred design method, and Reforming catalyst material 221 is porous pottery Ceramic material cordierite honeycomb ceramic material, which has hydrocarbon fuel gas reforming catalyst, wherein more Hole ceramic material is provided with many holes being parallel to airflow direction, and reforming catalyst is uniformly distributed/is attached in this some holes, this is more The specific surface area of hole ceramic material is 0.2m2/ g, this be attached with reforming catalyst porous ceramic film material can guarantee gas into Reforming reaction is completed before entering pile reactor core.
Porous ceramic film material is less than indirect internal reforming fuel gas into slow in the integral thickness for being parallel to fuel gas airflow direction 2 internal depth of chamber is rushed to provide the space of gas buffer, and its just embeddable fuel in the size perpendicular to airflow direction Gas is into cushion chamber.Pile reactor core 1 is formed by monocell and metal connector alternating stacking, between monocell and metal connector There are glass-ceramic seal materials, monocell, glass-ceramic seal materials and metal connector three constitute the channel of air-flow, glass Ceramic sealing material is for completely cutting off fuel gas and oxic gas channel, and two airflow channels are mutually perpendicular to battery up and down, and respective Air-flow buffer chamber is connected, and to guarantee the good contact of pile and reliable sealing, can apply certain pressure at the top of pile.Air-flow Sealing surface between chamber and pile reactor core is filled by glass-ceramic seal materials, and four air-flow buffer chambers have clamp device to guarantee gas Close property.Extraneous gas enters air-flow buffer chamber by pipeline, by uniformly entering each laminar flow road after cushion chamber.
As shown in Fig. 2, initial fuel gas and vapor enter indirect internal reforming fuel gas into cushion chamber 2 in certain proportion After, it is introduced into an air-flow buffer area, i.e. for initial fuel gas into cushion chamber 21, the gas after redistributing enters fuel gas Reformer chamber 22, into the hole for the porous ceramic film material for being wherein loaded with reforming catalyst, the heat of itself when being worked using pile Amount, fuel gas and vapor are completely converted into H through Reforming catalyst reaction (1), (2)2, CO and CO2, gaseous mixture after reformation enters Pile reactor core 2 will not generate anode carbon distribution.
As it will be easily appreciated by one skilled in the art that the foregoing is merely illustrative of the preferred embodiments of the present invention, not to The limitation present invention, any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should all include Within protection scope of the present invention.

Claims (8)

1.一种间接内重整固体氧化物燃料电池电堆，包括由固体氧化物燃料电池和金属连接体交替堆垛而成的电堆堆芯以及位于所述电堆堆芯的外侧的三个气流缓冲腔，这三个气流缓冲腔分别为氧化气进缓冲腔、氧化气出缓冲腔和燃料气出缓冲腔，其特征在于，1. An indirect internal reforming solid oxide fuel cell stack, comprising a stack core formed by alternately stacking solid oxide fuel cells and metal connectors, and three stacks located outside the stack core The airflow buffer cavity, the three airflow buffer cavities are the oxidation gas into the buffer cavity, the oxidation gas out of the buffer cavity and the fuel gas out of the buffer cavity, which is characterized in that: 所述电池电堆还包括一个间接内重整燃料气进缓冲腔，该间接内重整燃料气进缓冲腔与所述燃料气出缓冲腔位于所述电堆堆芯相对的两个侧面上，所述间接内重整燃料气进缓冲腔包括初始燃料气进缓冲腔和燃料气重整室，所述初始燃料气进缓冲腔用于初始的碳氢燃料气进入之后的缓冲，所述燃料气重整室用于将初始碳氢燃料气重整为一氧化碳、氢气和二氧化碳，并输送至所述电堆堆芯；The battery stack further comprises an indirect internal reformed fuel gas inlet buffer cavity, and the indirect internal reformed fuel gas inlet buffer cavity and the fuel gas outlet buffer cavity are located on two opposite sides of the stack core, The indirect internal reformed fuel gas inlet buffer chamber includes an initial fuel gas inlet buffer chamber and a fuel gas reforming chamber, the initial fuel gas inlet buffer chamber is used for buffering after the initial hydrocarbon fuel gas enters, the fuel gas a reforming chamber for reforming the initial hydrocarbon fuel gas into carbon monoxide, hydrogen and carbon dioxide, and delivering to the core of the stack; 所述燃料气重整室位于所述初始燃料气进缓冲腔和所述电堆堆芯之间，将所述初始燃料气进缓冲腔和所述电堆堆芯隔离开，以防止初始碳氢燃料气直接进入所述电堆堆芯；The fuel gas reforming chamber is located between the initial fuel gas inlet buffer chamber and the stack core, and isolates the initial fuel gas inlet buffer chamber from the stack core to prevent initial hydrocarbons The fuel gas directly enters the stack core; 所述燃料气重整室和电堆堆芯毗邻设计，能够使所述燃料气重整室内的重整催化反应利用电堆堆芯自身的热量。The fuel gas reforming chamber and the stack core are designed adjacent to each other, so that the reforming catalytic reaction in the fuel gas reforming chamber can utilize the heat of the stack core itself. 2.如权利要求1所述的电池电堆，其特征在于，所述燃料气重整室内设置有重整催化材料。2 . The battery stack according to claim 1 , wherein a reforming catalyst material is arranged in the fuel gas reforming chamber. 3 . 3.如权利要求2所述的电池电堆，其特征在于，所述重整催化材料通过机械固定装置固定在所述燃料气重整室内。3 . The battery stack of claim 2 , wherein the reforming catalytic material is fixed in the fuel gas reforming chamber by a mechanical fixing device. 4 . 4.如权利要求3所述的电池电堆，其特征在于，所述重整催化材料通过机械固定装置固定在所述燃料气重整室内具体是：在所述重整催化材料的垂直于燃料气气流方向的两个侧面的边缘各设置一圈凸起，所述凸起与所述间接内重整燃料气进缓冲腔的相应位置的凹陷相配合，从而使所述重整催化材料固定在所述燃料气重整室内。4 . The battery stack according to claim 3 , wherein the reforming catalytic material is fixed in the fuel gas reforming chamber by a mechanical fixing device, specifically: the reforming catalytic material is perpendicular to the fuel gas. 5 . The edges of the two sides in the gas flow direction are each provided with a circle of protrusions, and the protrusions are matched with the depressions at the corresponding positions of the indirect inner reformed fuel gas into the buffer cavity, so that the reformed catalytic material is fixed in the buffer chamber. The fuel gas reforming chamber. 5.如权利要求2所述的电池电堆，其特征在于，所述重整催化材料为多孔陶瓷材料。5. The battery stack of claim 2, wherein the reforming catalytic material is a porous ceramic material. 6.如权利要求5所述的电池电堆，其特征在于，所述多孔陶瓷材料表面附着有重整催化剂。6 . The battery stack of claim 5 , wherein a reforming catalyst is attached to the surface of the porous ceramic material. 7 . 7.如权利要求2所述的电池电堆，其特征在于，所述重整催化材料的比表面积不小于0.2m2/g。7 . The battery stack of claim 2 , wherein the specific surface area of the reforming catalytic material is not less than 0.2 m 2 /g. 8 . 8.如权利要求1所述的电池电堆，其特征在于，所述初始燃料气为碳氢燃料。8. The battery stack of claim 1, wherein the initial fuel gas is hydrocarbon fuel.
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