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    • 3. 发明专利
    • Operation method of fuel cell
    • 燃料电池操作方法
    • JP2005259368A
    • 2005-09-22
    • JP2004065551
    • 2004-03-09
    • Osaka Gas Co Ltd大阪瓦斯株式会社
    • NONAKA ATSUSHISHINTAKU HIDEKIYAMAZAKI OSAMU
    • H01M8/10H01M8/04
    • Y02E60/521
    • PROBLEM TO BE SOLVED: To provide an operation method of a fuel cell which is small in size, low in cost, capable of achieving a long life by well recovering a deterioration of an oxygen electrode.
      SOLUTION: The operation method of the fuel cell supplies an oxygen-containing gas to oxygen electrodes and a hydrogen-containing gas to fuel electrodes to generate electric power by being provided with a plurality of cells having oxygen electrodes on one faces and fuel electrodes on the other faces of electrolyte layers, respectively, in a state to electrically connect the cells in series with one another. The method applies prescribed high voltages to the oxygen electrodes in a state of stopping the supply of the oxygen-containing gas to the oxygen electrodes while keeping the supply of the hydrogen-containing gas to the fuel electrodes, after that, the high voltages applied to the oxygen electrodes is swept by a low voltages lower than the high voltages applied to the oxygen electrodes. Next, a voltage raising process to sweep the low voltages applied to the oxygen electrodes to the high voltages, is applied, then, an oxygen electrode voltage varying operations to conduct voltage lowering processing to sweep the high voltages to the oxygen electrodes to the low voltages is applied.
      COPYRIGHT: (C)2005,JPO&NCIPI
    • 要解决的问题:为了提供一种尺寸小,成本低的燃料电池的操作方法,能够通过良好地回收氧电极的劣化而实现长寿命。 解决方案:燃料电池的操作方法通过在一个面上设置多个具有氧电极的电池和燃料,将氧气电极和含氢气体的含氧气体供给燃料电极以产生电力 分别在电解质层的另一面上的电极以彼此串联地电连接的电池的电极。 该方法在停止向氧电极供应含氧气体的状态下向氧电极施加规定的高电压,同时保持向含有燃料电极的含氢气体的供应,然后施加到 氧电极被施加到氧电极的高电压以下的低电压扫过。 接下来,施加用于将施加到氧电极的低电压扫描到高电压的升压过程,然后进行氧电极电压变化操作以进行降压处理以将氧电极的高电压扫描到低电压 被申请;被应用。 版权所有(C)2005,JPO&NCIPI
    • 6. 发明专利
    • Polymer electrolyte fuel cell system and its control method
    • 聚合物电解质燃料电池系统及其控制方法
    • JP2007265937A
    • 2007-10-11
    • JP2006092924
    • 2006-03-30
    • Osaka Gas Co Ltd大阪瓦斯株式会社
    • OMORI YASUHARUYAMAZAKI OSAMUSHINTAKU HIDEKI
    • H01M8/04H01M8/10
    • Y02E60/521
    • PROBLEM TO BE SOLVED: To provide a solid polymer fuel cell system and its control method wherein deterioration of a fuel cell stack can be suppressed.
      SOLUTION: The control method of the polymer electrolyte fuel cell system includes first steps (S2, S3) of obtaining a temperature value of the fuel cell stack to determine whether or not the temperature value is within a prescribed range, second steps (S4, S5) of obtaining a current value of the fuel cell stack to find a current density and then determining whether or not the current density is within the prescribed range, a third step (S6) of comparing the magnitude of the current density obtained in the second steps with that of the current density before a prescribed time interval, and a fourth step (S7) of controlling so as to reduce the temperature in the case determining that both of the temperature values in the first steps and the current density in the second steps are within the prescribed range and when determining that the current density in the third step is smaller than that before the prescribed time.
      COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:提供固体聚合物燃料电池系统及其控制方法,其中可以抑制燃料电池堆的劣化。 解决方案:聚合物电解质燃料电池系统的控制方法包括获得燃料电池堆的温度值以确定温度值是否在规定范围内的第一步骤(S2,S3),第二步骤 S4,S5),获得燃料电池堆的电流值以找到电流密度,然后确定电流密度是否在规定范围内;第三步骤(S6)将电流密度的大小进行比较, 第二步骤与规定时间间隔之前的电流密度进行比较;以及第四步骤(S7),其在确定第一步骤中的温度值和第一步骤中的电流密度两者的情况下控制以降低温度 第二步骤在规定范围内,并且当确定第三步骤中的电流密度小于规定时间之前的电流密度时。 版权所有(C)2008,JPO&INPIT
    • 7. 发明专利
    • Method for refining carbon dioxide
    • 精制二氧化碳的方法
    • JP2013249244A
    • 2013-12-12
    • JP2012127400
    • 2012-06-04
    • Osaka Gas Co Ltd大阪瓦斯株式会社
    • SHINTAKU HIDEKITAKEMOTO TETSUYAHANASAKA FUMIHIRO
    • C01B32/50B01D53/14B01D53/62
    • Y02A50/2342Y02C10/06Y02P20/152
    • PROBLEM TO BE SOLVED: To separate and recover carbon dioxide from an exhaust gas and the like easily and at a high purity.SOLUTION: In a method for refining carbon dioxide, a carbon dioxide absorption step to generate a cyclic carbonate compound by reacting an intramolecular dehydrohalogenated compound of a compound having a hydroxyl group and a halogen group in an intramolecular basic skeleton with carbon dioxide and a carbon dioxide regeneration step to generate carbon dioxide by decomposing the cyclic carbonate compound at a higher temperature than the decomposition temperature of a cyclic carbonate structure in the cyclic carbonate compound and at a lower temperature than the decomposition temperature of the basic skeleton are performed in order.
    • 要解决的问题:容易地和以高纯度从废气等中分离和回收二氧化碳。解决方案:在二氧化碳的精制方法中,通过分子内反应产生环状碳酸酯化合物的二氧化碳吸收步骤 在分子内碱性骨架中具有羟基和卤素基团的化合物与二氧化碳的脱卤化氢化合物和二氧化碳再生步骤,通过在比环状碳酸酯结构的分解温度高的温度下分解环状碳酸酯化合物来产生二氧化碳 在环状碳酸酯化合物中并且在比碱性骨架的分解温度低的温度下进行。
    • 9. 发明专利
    • Fuel cell system and its operation method
    • 燃料电池系统及其运行方法
    • JP2007265910A
    • 2007-10-11
    • JP2006091868
    • 2006-03-29
    • Osaka Gas Co Ltd大阪瓦斯株式会社
    • SHINTAKU HIDEKIYAMAZAKI OSAMUOMORI YASUHARU
    • H01M8/04H01M8/10
    • Y02E60/521
    • PROBLEM TO BE SOLVED: To provide a fuel cell system in which a cathode potential is made to be reduced in power generating a low load, in which deterioration of a cathode material is suppressed, and in which water clogging of a gas flow passage is prevented, and that driving method.
      SOLUTION: This is provided with a fuel cell power generating part (1) provided with a cell stack constituted by connecting in series a plurality of cells having anodes and cathodes, oxidizer supplying means (31 to 33) to supply an oxidizer to be input to the cathodes, low oxygen concentration gas supplying means (35, 36) to mix the low oxygen concentration gas (nitrogen gas) of oxygen concentration of approximately 21% or less with the oxidizer, and a cell voltage measurement control part (10) in which the average cell voltage is calculated by measuring the voltage of the cell stack, and in which in the case the obtained average cell voltage is larger than a prescribed threshold voltage, the low oxygen concentration gas supplying means (35, 36) are controlled so as to mix the low oxygen concentration gas with the oxidizer and to input it into the oxidizer supplying means (31 to 33).
      COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:提供一种燃料电池系统,其中使得阴极电位降低,从而产生低负载,其中阴极材料的劣化被抑制,并且其中气体流的水堵塞 通道被阻止,而这种驾驶方式。 解决方案:设置有燃料电池发电部分(1),其设置有串联连接多个具有阳极和阴极的电池的电池堆,氧化剂供应装置(31至33)以将氧化剂供应到 将低浓度氧浓度气体(氮气)与氧化剂混合约21%以下的低氧浓度气体供给装置(35,36)和电池电压测定控制部(10)进行混合, ),其中通过测量电池堆的电压来计算平均电池电压,并且在所获得的平均电池电压大于规定的阈值电压的情况下,低氧浓度气体供给装置(35,36)为 控制以将低氧浓度气体与氧化剂混合并将其输入氧化剂供给装置(31至33)。 版权所有(C)2008,JPO&INPIT