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公开(公告)号：US11367887B2
公开(公告)日：2022-06-21
申请号：US16976205
申请日：2019-03-06
申请人： Osaka Gas Co., Ltd.
发明人： Noritoshi Shinke , Mitsuaki Echigo
IPC分类号： H01M8/0612 , C01B3/38 , H01M8/04014 , H01M8/04007 , H01M8/04119 , H01M8/04701 , H01M8/04746 , H01M8/04791 , H01M8/04828 , H01M8/0662 , H01M8/12 , H01M8/1231
摘要： Provided is a fuel cell system capable of further increasing electric power generation efficiency, compared to the current circumstances, with respect to a fuel cell SOFC that generates electric power by supplying a reformed gas obtained by steam reforming to a fuel electrode. A steam reformer that reforms a hydrocarbon fuel by a steam reforming reaction; a fuel cell that operates by introducing a reformed gas to a fuel electrode; and an anode off-gas circulation path that removes condensed water while cooling an anode off-gas, and introduces the anode off-gas to the steam reformer are provided. A condensation temperature in a condensing device is controlled by a control unit that controls a steam partial pressure of the anode off-gas circulated to the steam reformer, and S/C adjustment is adapted to high-efficiency electric power generation.
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公开(公告)号：US20220169501A1
公开(公告)日：2022-06-02
申请号：US17440500
申请日：2020-03-27
申请人： Osaka Gas Co., Ltd.
发明人： Hinako Matsuo , Hidaka Asonuma , Koichiro Ikeda
IPC分类号： C01B3/38 , C01B3/56 , B01D53/053
摘要： When the product gas producing operation is stopped, a stand-by operation is executed in which a product gas filling up a reforming processing unit is circulated, in a state in which an adsorbent of adsorption towers is maintained in a state in which adsorption target components are desorbed, and the heating of a reformer by a heating burner is maintained, and when the stand-by operation is stopped and the product gas producing operation is started, initial operation processing is executed in which immediately after the start, a source gas and steam are supplied to the reformer to produce a reformed gas, and the reformed gas from the reforming processing unit supplied to the adsorption towers to produce the product gas, and then the product gas producing operation in which the product gas is collected in a product gas tank is executed.
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公开(公告)号：US11189839B2
公开(公告)日：2021-11-30
申请号：US16910246
申请日：2020-06-24
申请人： Osaka Gas Co., Ltd.
发明人： Mitsuaki Echigo , Hisao Ohnishi , Kyohei Manabe , Osamu Yamazaki , Kazuyuki Minami , Yuji Tsuda
IPC分类号： H01M4/86 , H01M8/0232 , H01M8/1213 , H01M8/1253 , H01M8/126 , H01M4/88 , H01M8/12 , H01M8/02 , H01M8/124 , H01M4/90
摘要： Realized is an element having an electrolyte layer that is dense and has high gas barrier characteristics. A metal-supported electrochemical element includes at least a metal substrate as a support, an electrode layer formed on/over the metal substrate, a buffer layer formed on the electrode layer, and an electrolyte layer formed on the buffer layer. The electrode layer is porous and the electrolyte layer is dense. The buffer layer has density higher than density of the electrode layer and lower than density of the electrolyte layer.
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公开(公告)号：US20210111415A1
公开(公告)日：2021-04-15
申请号：US17043810
申请日：2019-03-29
申请人： Osaka Gas Co., Ltd.
发明人： Hisao Ohnishi , Mitsuaki Echigo
IPC分类号： H01M8/0258 , H01M8/0606 , H01M8/1213 , H01M8/2432 , H01M8/2475 , H01M8/2483
摘要： An electrochemical element stack that includes a plurality of stacked electrochemical elements, each of the electrochemical elements including a plate-like support provided with an internal passage. The plate-like support includes: a gas-permeable portion through which gas passes between the internal passage located inside the plate-like support and the outside; an electrochemical reaction portion covering the gas-permeable portion; and a first penetrated portion forming a supply passage through which fuel gas flows from the outside of the plate-like support to the internal passage. The plate-like supports of two adjacent electrochemical elements are opposed, an outer face of the first electrochemical element on which the electrochemical reaction portion is arranged is electrically connected to an outer face of the second electrochemical element on which the electrochemical reaction portion is not arranged, and a flowing portion through which air flows along the two adjacent outer faces is formed between the two outer faces.
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公开(公告)号：US20210028475A1
公开(公告)日：2021-01-28
申请号：US17040450
申请日：2019-03-29
申请人： Osaka Gas Co., Ltd.
发明人： Mitsuaki Echigo , Hisao Onishi , Noritoshi Shinke , Yuji Tsuda
IPC分类号： H01M8/0612 , H01M8/04089 , H01M8/1213 , H01M8/0637 , H01M8/04701 , H01M8/04014 , H01M4/86
摘要： A fuel cell single unit including: a fuel cell element in which an anode layer and a cathode layer are formed so as to sandwich an electrolyte layer; a reducing gas supply path for supplying a gas containing hydrogen to the anode layer; an oxidizing gas supply path for supplying a gas containing oxygen to the cathode layer; and an internal reforming catalyst layer, which has a reforming catalyst for steam-reforming a fuel gas, in at least a part of the reducing gas supply path is provided. An external reformer, which has a reforming catalyst for steam-reforming the fuel gas, is provided upstream of the reducing gas supply path, and the fuel gas partially reformed by the external reformer is supplied to the reducing gas supply path.
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公开(公告)号：US10814312B2
公开(公告)日：2020-10-27
申请号：US16614892
申请日：2018-05-15
申请人： Osaka Gas Co., Ltd.
IPC分类号： B01J21/04 , B01J23/06 , B01J23/60 , B01J23/80 , B01J23/89 , C10L3/10 , C10L3/12 , B01J37/02 , B01J37/08
摘要： Provided are a high-performance desulfurizing agent for gases and a gas desulfurization method that provide a high desulfurization performance even at low temperatures and can maintain its desulfurization performance for a long period of time. The desulfurizing agent is characterized in that it includes a zinc oxide, an aluminum oxide and copper, the agent further including nickel by from 1.0 mass % to 10 mass % and ruthenium by from 0.1 mass % to 1.0 mass %. The gas desulfurization method is characterized in that the desulfurizing agent is brought into contact with the gas in the coexistent of hydrogen, thus decomposing/removing sulfur compound contained in the gas.
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公开(公告)号：US10428724B2
公开(公告)日：2019-10-01
申请号：US15927593
申请日：2018-03-21
摘要： A cooling device for an internal combustion engine includes a circulation path, a coolant temperature sensor, a coolant pump, and an electronic control unit. The electronic control unit is configured to execute processing for performing feedback control on power of the coolant pump such that the output of the coolant temperature sensor becomes a target temperature, micelle determination processing for determining whether or not micelles are added to a coolant based on pump work of the coolant pump and the flow rate of the coolant flowing through the circulation path, Toms determination processing for determining whether or not the flow rate of the coolant satisfies a Toms effect expression condition, and correction processing for increasing a relative value of the output of the coolant temperature sensor with respect to the target temperature when the micelles is added and the Toms effect expression condition is established.
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公开(公告)号：US20190154609A1
公开(公告)日：2019-05-23
申请号：US16253086
申请日：2019-01-21
发明人： Naoyoshi MURATA , Takuya SUZUKI , Makoto OKAMURA , Tsuyoshi KAMIOKA , Hisao OHNISHI , Atsushi NONAKA
摘要： A gas alarm device is provided, where a heating control section extends a heating period of time of a heater section if a first determination section determines that electrical characteristics of a sensing section of a gas sensor satisfy a first condition, and continues extension of the heating period of time of the heater section according to a determination result, by a second determination section, of whether or not the electrical characteristics upon lapse of extension of the heating period of time satisfy a second condition, and a gas detection section determines, according to the electrical characteristics upon lapse of extension time, that detection target gas is detected.
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公开(公告)号：US20190105606A1
公开(公告)日：2019-04-11
申请号：US16088557
申请日：2017-03-10
申请人： Osaka Gas Co., Ltd.
发明人： Kentaro Ueda , Akira Kishimoto , Saki Nakayama
摘要： A gas sorbent is characterized in that a gas sorbing material that undergoes a phase change from solid to liquid at time of gas sorption and also undergoes a phase change from liquid to solid at time of gas desorption is supported in a carrier and the sorbent keeps its solid-like outer shape before/after the phase changes of the gas sorbing material.
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公开(公告)号：US10020527B2
公开(公告)日：2018-07-10
申请号：US15511805
申请日：2015-09-18
申请人： Osaka Gas Co., Ltd.
发明人： Mitsuaki Echigo , Hisao Ohnishi , Kyohei Manabe , Osamu Yamazaki , Kazuyuki Minami , Yuji Tsuda
IPC分类号： H01M8/1226 , H01M8/1253 , H01M4/90 , H01M4/88 , H01M8/124
CPC分类号： H01M8/1226 , H01M4/86 , H01M4/88 , H01M4/8807 , H01M4/8828 , H01M4/9066 , H01M8/02 , H01M8/0232 , H01M8/0258 , H01M8/12 , H01M8/1253 , H01M2008/1293 , Y02P70/56
摘要： Realized are an electrochemical element and a solid oxide fuel cell that have a dense electrolyte layer and that have excellent durability and robustness, and methods for producing the same. An electrochemical element includes: a metal substrate 2 having a plurality of through holes 21; an electrode layer 3 provided over a front face of the metal substrate 2; and an electrolyte layer 4 provided over the electrode layer 3, wherein the through holes 21 are provided passing through the front face and a back face of the metal substrate 2, the electrode layer 3 is provided in a region larger than a region, of the metal substrate 2, in which the through holes 21 are provided, and the electrolyte layer 4 has a first portion 41 coating the electrode layer 3, and a second portion 42 that is in contact with the front face of the metal substrate 2.
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