JP2009181825A - Fuel cell power generation device - Google Patents

Fuel cell power generation device Download PDF

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JP2009181825A
JP2009181825A JP2008020224A JP2008020224A JP2009181825A JP 2009181825 A JP2009181825 A JP 2009181825A JP 2008020224 A JP2008020224 A JP 2008020224A JP 2008020224 A JP2008020224 A JP 2008020224A JP 2009181825 A JP2009181825 A JP 2009181825A
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biogas
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reformer
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JP5211718B2 (en
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Naonobu Yokoyama
尚伸 横山
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Fuji Electric Co Ltd
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    • 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
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a fuel cell power generation device capable of ensuring reliable power generation operation by quickly detecting deterioration of the impurity adsorbing performance in a biogas pretreatment device and appropriately treating it. <P>SOLUTION: In the fuel cell power generation device equipped with the biogas pretreatment device 12. a reformer 2, and a fuel cell stack 1, temperature detecting sensors 6, 7, 8, 9 detecting the temperature change of the reformer 2 or the temperature change of gas flowing through the reformer 2 are installed, and deterioration of the impurity adsorbing performance of the pretreatment device is detected based on the temperature detecting signals of the temperature detecting sensors. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

本発明は、有機性廃棄物から発生するバイオガスを燃料として利用するバイオガス対応の燃料電池発電装置に関する。   The present invention relates to a biogas-compatible fuel cell power generator that uses biogas generated from organic waste as fuel.

従来の燃料電池発電装置では、大部分の装置で都市ガスや液化石油ガス（ＬＰＧ）等の炭化水素系ガスが燃料として用いられている。これに対して、下水やし尿、あるいは生ごみや食品廃水等の有機性廃棄物をバクテリアで分解させて発生させたバイオガスを燃料とする燃料電池発電装置には、特許文献１や特許文献２等に開示されている燃料電池発電装置があるが、その適用条件は極めて限定されている。
バイオガスから発生させた燃料には、硫化水素、アンモニア、塩素等の不純物のほかに、有機性廃棄物に含まれる高分子化合物から発生する炭素数９〜13の飽和炭化水素や、トルエンやシリコンから発生する珪素数１〜５のシロキサン等の炭化水素化合物が不純物として含まれる場合がある。バイオガスを用いる燃料電池発電装置には、これらの不純物を事前に処理するために、通常、活性炭を組み込んだ前処理装置が設置されており、この前処理装置で処理されたバイオガスを改質して燃料電池スタックへ供給し、発電している。
特開2004―95370号公報 特開2005―190802号公報 In conventional fuel cell power generation apparatuses, hydrocarbon gases such as city gas and liquefied petroleum gas (LPG) are used as fuel in most apparatuses. On the other hand, Patent Document 1 and Patent Document 2 include fuel cell power generation apparatuses that use biogas generated by decomposing organic waste such as sewage, human waste, and garbage or food wastewater with bacteria. However, the application conditions are very limited.
In addition to impurities such as hydrogen sulfide, ammonia and chlorine, fuels generated from biogas include saturated hydrocarbons of 9 to 13 carbon atoms generated from polymer compounds contained in organic waste, toluene and silicon. In some cases, hydrocarbon compounds such as siloxanes having 1 to 5 silicon atoms generated from silicon are contained as impurities. In order to treat these impurities in advance, a fuel cell power generation device that uses biogas usually has a pretreatment device that incorporates activated carbon. The biogas that has been treated by this pretreatment device is reformed. Then, it is supplied to the fuel cell stack to generate electricity.
Japanese Patent Laid-Open No. 2004-95370 JP-A-2005-190802

バイオガスを用いる燃料電池発電装置においては、適用されるバイオガスの形態や場所、その他の要因が使用条件毎に異なるので、バイオガス燃料中に含まれる上記のごとき不純物の量の変動が大きく、特に、飽和炭化水素やシロキサン等の炭化水素化合物は年間を通じて変動が大きい。このため、バイオガスの不純物を事前に処理する前処理装置の寿命予測が難しく、処理の不十分なバイオガスを長時間供給して燃料電池発電装置の性能を劣化させてしまうという問題点があった。また、飽和炭化水素やシロキサン等の炭化水素化合物の分析には大掛かりな分析装置が必要とされるので、現地で常時分析し、監視を行うことは困難である。
本発明は、このような技術の現状を考慮してなされたもので、バイオガスを用いる燃料電池発電装置において、燃料改質装置の前段に配置されるバイオガス前処理装置の不純物吸着性能の劣化が迅速に検知され、適切に処置されて、信頼性の高い発電運転が確保される燃料電池発電装置を提供することを目的とする。 In the fuel cell power generation device using biogas, the form and location of the applied biogas, and other factors vary depending on the use conditions, so the amount of impurities as described above contained in the biogas fuel varies greatly. In particular, hydrocarbon compounds such as saturated hydrocarbons and siloxanes vary greatly throughout the year. For this reason, it is difficult to predict the life of a pretreatment device that pretreats impurities of biogas, and there is a problem in that the performance of the fuel cell power generation device is deteriorated by supplying biogas that is not sufficiently treated for a long time. It was. Moreover, since analysis of hydrocarbon compounds such as saturated hydrocarbons and siloxanes requires a large analysis device, it is difficult to always analyze and monitor on site.
The present invention has been made in view of the current state of the art, and in a fuel cell power generation apparatus using biogas, the degradation of the impurity adsorption performance of the biogas pretreatment apparatus disposed in the front stage of the fuel reformer. It is an object of the present invention to provide a fuel cell power generation apparatus that can quickly detect and appropriately take measures to ensure reliable power generation operation.

上記の目的を達成するために、本発明においては、
バイオガスを通流して含まれる不純物を除去するバイオガス前処理装置と、この前処理装置で処理された燃料を改質する改質装置と、この改質装置で得られた燃料を導入して電気化学的に発電する燃料電池スタックとを備えた燃料電池発電装置において、
（１）改質装置の温度の変化、あるいは改質装置を流れるガスの温度の変化を検知する温度検知手段を備え、この温度検知手段による温度検知信号に基づいて前記の前処理装置の不純物除去性能劣化を検知することとする。
（２）さらに上記（１）の燃料電池発電装置において、前記の前処理装置の不純物除去性能劣化の検知に基づいて発電の出力低減又は停止を自動的に行う運転制御手段を備えることとする。
（３）また、上記（１）または（２）の燃料電池発電装置において、前処理装置を並列に複数個備え、かつ、これらの前処理装置に供給するバイオガスを切り替えるためのバルブを備えることとする。
（４）また、上記（３）の燃料電池発電装置において、前記の前処理装置の不純物除去性能劣化の検知に基づいて使用中の前処理装置から他の前処理装置へバイオガスの供給先を切り替える制御手段を備えることとする。 In order to achieve the above object, in the present invention,
A biogas pretreatment device that removes impurities contained by flowing through the biogas, a reformer that reforms the fuel processed by the pretreatment device, and a fuel obtained by the reformer In a fuel cell power generator comprising a fuel cell stack for electrochemically generating power,
(1) A temperature detecting means for detecting a change in temperature of the reforming apparatus or a temperature of a gas flowing through the reforming apparatus is provided, and impurities are removed from the pretreatment apparatus based on a temperature detection signal from the temperature detecting means. Detect performance degradation.
(2) Further, the fuel cell power generator of the above (1) is provided with operation control means for automatically reducing or stopping power generation based on detection of the impurity removal performance deterioration of the pretreatment device.
(3) Further, in the fuel cell power generator of the above (1) or (2), a plurality of pretreatment devices are provided in parallel, and a valve for switching the biogas supplied to these pretreatment devices is provided. And
(4) Further, in the fuel cell power generation device of (3), the biogas supply destination is changed from the pretreatment device in use to another pretreatment device based on detection of the impurity removal performance deterioration of the pretreatment device. A control means for switching is provided.

バイオガスを燃料として用いる燃料電池発電装置において、バイオガスの不純物の除去が不十分な場合には、不純物を含んだバイオガスが脱硫器や改質器で構成される改質装置を経て燃料電池スタックへと送られることとなるが、硫黄化合物等の不純物は脱硫器で吸着除去されるのに対して、飽和炭化水素やシロキサン等の炭化水素化合物は脱硫器で除去できないので、不純物を吸着除去するバイオガス前処理装置の不純物除去性能が低下すると、後段の改質器には飽和炭化水素やシロキサン等の炭化水素化合物を含んだバイオガスが供給される。したがって、これらの不純物によって改質器触媒層での改質反応が阻害され、吸熱反応である改質反応の反応度が低下するので、この部分での吸熱量が低下し、温度が上昇することとなる。したがって上記の（１）のごとく、改質装置の温度の変化、あるいは改質装置を流れるガスの温度の変化を検知する温度検知手段を備え、この温度検知手段による温度検知信号に基づいて前記の前処理装置の不純物除去性能劣化を検知することとすれば、不純物除去性能の劣化を早期に検知し、前処理装置の保守を適切に実施することができる。
また、上記の（２）のごとく、上記の温度検知手段を備えた燃料電池発電装置に、さらに、前記の前処理装置の不純物除去性能劣化の検知に基づいて発電の出力低減又は停止を自動的に行う運転制御手段を備えれば、前処理装置の不純物除去性能の劣化が早期に検知され、発電運転が適正、かつ自動的に制御されるので、効果的な運転が可能となる。 In a fuel cell power generation device using biogas as fuel, if the removal of impurities in the biogas is insufficient, the biogas containing impurities passes through a reformer configured by a desulfurizer or reformer, and then the fuel cell Although it will be sent to the stack, impurities such as sulfur compounds are adsorbed and removed by the desulfurizer, whereas hydrocarbon compounds such as saturated hydrocarbons and siloxane cannot be removed by the desulfurizer, so the impurities are adsorbed and removed. When the performance of removing impurities from the biogas pretreatment device is reduced, biogas containing a hydrocarbon compound such as saturated hydrocarbon or siloxane is supplied to the reformer at the subsequent stage. Therefore, the reforming reaction in the reformer catalyst layer is hindered by these impurities, and the reactivity of the reforming reaction, which is an endothermic reaction, decreases, so the endothermic amount in this part decreases and the temperature rises. It becomes. Accordingly, as described in (1) above, the temperature detecting means for detecting the temperature change of the reforming apparatus or the temperature of the gas flowing through the reforming apparatus is provided, and based on the temperature detection signal by the temperature detecting means, If the deterioration of the impurity removal performance of the pretreatment device is detected, the deterioration of the impurity removal performance can be detected at an early stage, and the maintenance of the pretreatment device can be appropriately performed.
In addition, as described in (2) above, the fuel cell power generator equipped with the temperature detecting means described above is further automatically reduced or stopped in power generation based on detection of the impurity removal performance deterioration of the pretreatment device. If the operation control means is provided, the deterioration of the impurity removal performance of the pretreatment device is detected at an early stage, and the power generation operation is appropriately and automatically controlled, so that an effective operation is possible.

また、さらに、上記の（３）のごとく前処理装置を並列に複数個備え、かつ、これらの前処理装置に供給するバイオガスを切り替えるためのバルブを備えれば、前処理装置の不純物除去性能の劣化状態を早期に判断して適正に作動する前処理装置を連結して処理に用いることが可能となり、さらに、上記の（４）のごとく、前記の前処理装置の不純物除去性能劣化の検知に基づいて使用中の前処理装置から他の前処理装置へバイオガスの供給先を切り替える制御手段を備えれば、前処理装置の不純物除去性能の劣化状態が早期に、自動的、かつ、適正に判断され、適正に作動する前処理装置が連結されて処理されることとなる。   Further, if a plurality of pretreatment devices are provided in parallel as in (3) above and a valve for switching the biogas supplied to these pretreatment devices is provided, the impurity removal performance of the pretreatment device It is possible to connect a pre-processing device that operates properly by judging the deterioration state of the product at an early stage and to use it for processing. Further, as described in (4) above, detection of the impurity removal performance deterioration of the pre-processing device. If the control means to switch the biogas supply destination from the pretreatment device in use to another pretreatment device based on the pretreatment device, the deterioration state of the impurity removal performance of the pretreatment device is early, automatic and appropriate Therefore, a pre-processing device that operates properly is connected and processed.

本発明の燃料電池発電装置の最良の実施形態は、バイオガスを通流して含まれる不純物を除去するバイオガス前処理装置と、この前処理装置で処理された燃料を改質する改質装置と、この改質装置で得られた燃料を導入して電気化学的に発電する燃料電池スタックとを備えた燃料電池発電装置において、改質装置の温度の変化、あるいは改質装置を流れるガスの温度の変化を検知する温度検知手段を備え、この温度検知手段による温度検知信号に基づいて前記の前処理装置の不純物除去性能劣化を検知することとした形態、さらには、この前処理装置の不純物除去性能劣化の検知に基づいて発電の出力低減又は停止を自動的に行う運転制御手段を備えた形態にある。
また、上記の燃料電池発電装置において、前処理装置を並列に複数個備え、かつ、これらの前処理装置に供給するバイオガスを切り替えるためのバルブを備えた形態とし、さらに、前記の前処理装置の不純物除去性能劣化の検知に基づいて使用中の前処理装置から他の前処理装置へバイオガスの供給先を切り替える制御手段を備えれば、より好適な形態となる。 BEST MODE FOR CARRYING OUT THE INVENTION The best mode of the fuel cell power generator of the present invention is a biogas pretreatment device that removes impurities contained by flowing biogas, and a reformer that reforms fuel treated by the pretreatment device. In a fuel cell power generation apparatus comprising a fuel cell stack that electrochemically generates electricity by introducing fuel obtained by the reformer, the temperature change of the reformer or the temperature of the gas flowing through the reformer A temperature detecting means for detecting a change in the temperature of the pre-processing apparatus based on a temperature detection signal from the temperature detecting means, and further, impurity removal of the pre-processing apparatus. There is an embodiment provided with operation control means for automatically reducing or stopping power generation output based on detection of performance deterioration.
In the fuel cell power generator described above, a plurality of pretreatment devices are provided in parallel, and a valve for switching the biogas supplied to these pretreatment devices is provided. If a control means for switching the supply destination of the biogas from the pretreatment apparatus in use to another pretreatment apparatus based on the detection of the deterioration of the impurity removal performance is provided, it becomes a more preferable form.

図１は、本発明の燃料電池発電装置の第１の実施例の燃料ガス供給系の主要部の構成図で、１は燃料電池スタック、２は改質器、３は熱交換器、４は脱硫器である。また、６，７，８，９は、それぞれ、バイオガス脱硫器入口温度検知センサー、脱硫器触媒温度検知センサー、改質ガス改質器出口温度検知センサー、改質器触媒温度検知センサーであり、１１は脱硫器、１２は前処理装置である。本実施例の燃料電池発電装置では、バイオガスは、脱硫器１１で脱硫され、前処理装置１２で不純物除去された後、熱交換器３で加温し、脱硫器４で再度脱硫の後、改質器２の触媒層へと送られて高水素濃度の改質ガスへと改質され、燃料電池スタック１の燃料極へ燃料として供給される。
本実施例においては、前処理装置１２の不純物除去性能が不十分となった場合には、不純物を含むバイオガスが後段の改質器２へ供給される。このため触媒層での改質反応（吸熱反応）が阻害され、吸熱量が減少するので、触媒層の温度が上昇する。したがって、改質器２の触媒層に組み込んだ改質器触媒温度検知センサー９の温度上昇を検知することにより、前処理装置１２の不純物除去性能の劣化を早期に把握することができる。したがって、改質器触媒温度検知センサー９の温度上昇を検知した場合、アラームを発生させ、負荷の低減、あるいは運転停止等の措置を講じ、前処理装置１２の活性炭の交換等の保守作業が行われることとなる。
また、改質器２は改質性能を維持するために、触媒層出口温度がある規定値となるよう制御されている。そのため、触媒層入口部分で反応が阻害されて有効な触媒量が減少した場合には、それを補うためにバーナーでの燃焼量を増加させて触媒層出口温度を規定値に保持しており、その結果、改質ガスの改質器出口温度が上昇する。したがって、上記の改質器触媒温度検知センサー９の温度上昇の検知に替えて、改質ガス改質器出口温度検知センサー８の温度上昇の検知により前処理装置１２の不純物除去性能の劣化を把握してもよい。さらに、このように改質器出口温度が上昇すると、熱交換器３を介してバイオガスの脱硫器入口温度や脱硫器の触媒温度も上昇するので、バイオガス脱硫器入口温度検知センサー６や脱硫器触媒温度検知センサー７の温度上昇の検知により前処理装置１２の不純物除去性能の劣化を把握することとしてもよい。 FIG. 1 is a configuration diagram of a main part of a fuel gas supply system of a fuel cell power generator according to a first embodiment of the present invention. 1 is a fuel cell stack, 2 is a reformer, 3 is a heat exchanger, 4 is It is a desulfurizer. Further, 6, 7, 8, and 9 are a biogas desulfurizer inlet temperature detection sensor, a desulfurizer catalyst temperature detection sensor, a reformed gas reformer outlet temperature detection sensor, and a reformer catalyst temperature detection sensor, 11 is a desulfurizer, and 12 is a pretreatment device. In the fuel cell power generator of this embodiment, the biogas is desulfurized by the desulfurizer 11, impurities are removed by the pretreatment device 12, heated by the heat exchanger 3, and desulfurized again by the desulfurizer 4. It is sent to the catalyst layer of the reformer 2 to be reformed into a reformed gas having a high hydrogen concentration, and is supplied to the fuel electrode of the fuel cell stack 1 as fuel.
In the present embodiment, when the impurity removal performance of the pretreatment device 12 becomes insufficient, biogas containing impurities is supplied to the reformer 2 at the subsequent stage. For this reason, the reforming reaction (endothermic reaction) in the catalyst layer is hindered and the endothermic amount is reduced, so that the temperature of the catalyst layer rises. Therefore, by detecting the temperature rise of the reformer catalyst temperature detection sensor 9 incorporated in the catalyst layer of the reformer 2, it is possible to grasp the deterioration of the impurity removal performance of the pretreatment device 12 at an early stage. Therefore, when the temperature rise of the reformer catalyst temperature detection sensor 9 is detected, an alarm is generated, and measures such as load reduction or operation stop are taken, and maintenance work such as replacement of activated carbon in the pretreatment device 12 is performed. Will be.
Further, the reformer 2 is controlled so that the catalyst layer outlet temperature becomes a predetermined value in order to maintain the reforming performance. Therefore, when the reaction is hindered at the catalyst layer inlet portion and the effective amount of catalyst is reduced, the combustion amount in the burner is increased to make up for it, and the catalyst layer outlet temperature is maintained at the specified value. As a result, the reformer outlet temperature of the reformed gas increases. Therefore, instead of detecting the temperature rise of the reformer catalyst temperature detection sensor 9 described above, the deterioration of the impurity removal performance of the pretreatment device 12 is grasped by detecting the temperature rise of the reformed gas reformer outlet temperature detection sensor 8. May be. Further, when the reformer outlet temperature rises in this way, the biogas desulfurizer inlet temperature and the desulfurizer catalyst temperature also rise through the heat exchanger 3, so that the biogas desulfurizer inlet temperature detection sensor 6 and desulfurization are performed. The deterioration of the impurity removal performance of the pretreatment device 12 may be ascertained by detecting the temperature rise of the catalyst catalyst temperature detection sensor 7.

図２は、本発明の燃料電池発電装置の第２の実施例の燃料ガス供給系の主要部の構成図である。本図においても図１に表示の構成要素と同一機能を有する構成要素には同一符号が付されている。本実施例の構成の特徴は、図１と同様に改質装置の各部に機器あるいはガスの温度を測定する温度検知センサー６，７，８，９が備えられているとともに、バイオガスに含まれる不純物を処理するための前処理装置１２，１３が２台並列に備えられ、前処理装置切替弁１４を介して連結されていることにある。本実施例のごとく構成された燃料電池発電装置では、いずれかの温度検知センサー６，７，８，９の温度上昇が検知され、組み込まれた前処理装置の不純物除去性能の劣化が認められた場合には、前処理装置切替弁１４の操作により使用する前処理装置を、例えば前処理装置１２から前処理装置１３に切り替えることによって、発電運転を継続することが可能となる。なお、本実施例では２台の前処理装置を並列に備えることとしているが、本発明は２台に限るものではなく、３台以上の前処理装置を並列に備えてもよい。   FIG. 2 is a configuration diagram of the main part of the fuel gas supply system of the second embodiment of the fuel cell power generator of the present invention. Also in this drawing, components having the same functions as those shown in FIG. The features of the configuration of this embodiment are included in the biogas, as well as the temperature detection sensors 6, 7, 8, 9 for measuring the temperature of the device or gas in each part of the reformer as in FIG. 1. Two pretreatment devices 12 and 13 for treating impurities are provided in parallel and are connected via a pretreatment device switching valve 14. In the fuel cell power generator configured as in the present embodiment, the temperature rise of any one of the temperature detection sensors 6, 7, 8, and 9 was detected, and deterioration of the impurity removal performance of the built-in pretreatment device was recognized. In this case, the power generation operation can be continued by switching the pretreatment device used by operating the pretreatment device switching valve 14 from, for example, the pretreatment device 12 to the pretreatment device 13. In this embodiment, two pre-processing devices are provided in parallel, but the present invention is not limited to two, and three or more pre-processing devices may be provided in parallel.

以上述べたように、本発明の燃料電池発電装置では、バイオガス中の不純物を除去する前処理装置の吸着除去性能の劣化が迅速に検知され、適切に処置されるので、性能低下を未然に防止して前処理装置の吸着性能を最大限有効に使用し、高い稼働率で、かつ、信頼性の高い発電運転が可能となる。したがって、本発明は、バイオガスを燃料として使用する各種の燃料電池発電装置に広く効果的に利用される。   As described above, in the fuel cell power generation device of the present invention, the deterioration of the adsorption removal performance of the pretreatment device that removes impurities in the biogas is quickly detected and appropriately treated, so that the performance deterioration is prevented. It is possible to prevent and effectively use the adsorption performance of the pretreatment device, and it is possible to perform power generation operation with high operation rate and high reliability. Therefore, the present invention is widely and effectively used for various fuel cell power generators using biogas as fuel.

本発明の燃料電池発電装置の第１の実施例の燃料ガス供給系の主要部の構成図1 is a configuration diagram of a main part of a fuel gas supply system of a first embodiment of a fuel cell power generator according to the present invention. 本発明の燃料電池発電装置の第２の実施例の燃料ガス供給系の主要部の構成図The block diagram of the principal part of the fuel gas supply system of 2nd Example of the fuel cell power generator of this invention

符号の説明Explanation of symbols

１ 燃料電池スタック
２ 改質器
４ 脱硫器
６ バイオガス脱硫器入口温度検知センサー
７ 脱硫器触媒温度検知センサー
８ 改質ガス改質器出口温度検知センサー
９ 改質器触媒温度検知センサー
１１ 脱硫器
１２ 前処理装置
１３ 前処理装置
1 Fuel cell stack 2 Reformer 4 Desulfurizer
6 Biogas desulfurizer inlet temperature detection sensor 7 Desulfurizer catalyst temperature detection sensor 8 Reformed gas reformer outlet temperature detection sensor 9 Reformer catalyst temperature detection sensor 11 Desulfurizer 12 Pretreatment device 13 Pretreatment device

Claims (4)

バイオガスを通流して含まれる不純物を除去するバイオガス前処理装置と、該前処理装置で処理された燃料を改質する改質装置と、該改質装置で得られた燃料を導入して電気化学的に発電する燃料電池スタックとを備えた燃料電池発電装置において、前記改質装置の温度の変化、あるいは前記改質装置を流れるガスの温度の変化を検知する温度検知手段を備え、該温度検知手段による温度検知信号に基づいて前記前処理装置の不純物除去性能劣化を検知することを特徴とする燃料電池発電装置。 A biogas pretreatment device for removing impurities contained by flowing through the biogas, a reformer for reforming the fuel treated by the pretreatment device, and a fuel obtained by the reformer In a fuel cell power generation device comprising a fuel cell stack for electrochemically generating electricity, the fuel cell power generation device comprises temperature detection means for detecting a change in temperature of the reforming device or a temperature of gas flowing in the reforming device, A fuel cell power generator characterized in that it detects deterioration in impurity removal performance of the pretreatment device based on a temperature detection signal from a temperature detection means. 前記の前処理装置の不純物除去性能劣化の検知に基づいて発電の出力低減又は停止を自動的に行う運転制御手段を備えたことを特徴とする請求項１に記載の燃料電池発電装置。 2. The fuel cell power generator according to claim 1, further comprising operation control means for automatically reducing or stopping power generation based on detection of deterioration in impurity removal performance of the pretreatment device. 前記の前処理装置が並列に複数個備えられ、かつ、これらの前処理装置に供給するバイオガスを切り替えるためのバルブを備えたことを特徴とする請求項１ないし２に記載の燃料電池発電装置。 3. The fuel cell power generator according to claim 1, wherein a plurality of the pretreatment devices are provided in parallel, and a valve for switching biogas to be supplied to these pretreatment devices is provided. 4. . 前記の前処理装置の不純物除去性能劣化の検知に基づいて使用中の前処理装置から他の前処理装置へバイオガスの供給先を切り替える制御手段を備えたことを特徴とする請求項３に記載の燃料電池発電装置。
The control means which switches the supply destination of biogas from the pre-processing apparatus in use to another pre-processing apparatus based on the detection of the impurity removal performance deterioration of the said pre-processing apparatus is provided. Fuel cell power generator.
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Publication number Priority date Publication date Assignee Title
JP2014524403A (en) * 2011-08-11 2014-09-22 レール・リキード−ソシエテ・アノニム・プール・レテュード・エ・レクスプロワタシオン・デ・プロセデ・ジョルジュ・クロード Method for producing hydrogen from biogas
JP2021143101A (en) * 2020-03-12 2021-09-24 古河電気工業株式会社 Mobile reforming system
JP2021143102A (en) * 2020-03-12 2021-09-24 古河電気工業株式会社 Mobile reaction system
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