OSAKA GAS CO., LTD. Patent applications |
Patent application number | Title | Published |
20150207322 | Power Supply System - When an AC line of one local system and a power system are in a parallel-off state, a control device included in a power supply system causes local inverter devices of the local systems to operate in a parallel-off operation mode in which control is performed such that the voltage and frequency of power on the AC line is at a target voltage and a target frequency determined according to the state of charge of a power storage device. When a condition for switching to the connected state has been satisfied, the control device stops operation of the local inverter device in the parallel-off operation mode and causes a switch to the connected state by operating the interrupting device, and thereafter causes the local inverter device to operate in a charging operation mode used in charging the power storage device with supplementary power received from the power system. | 07-23-2015 |
20150180236 | Power Consumption Mode Guiding Device and System - A power consumption mode guiding device includes a local system wherein the frequency of power on an AC line, is controlled at a target frequency determined according to the state of charge of a power storage device. The power consumption mode guiding device includes a frequency detection unit that detects the actual frequency of power on the AC line, an information storage unit in which guidance information for guiding the mode of use of a power consumption device by a power consumer (D) to a prescribed mode are stored in advance in association with frequency information obtained from detection results from the frequency detection unit, and a guidance information output unit that reads out, from the information storage unit, the guidance information associated with the frequency information obtained from the detection result from the frequency detection unit, and outputs the guidance information to the power consumer (D). | 06-25-2015 |
20140325819 | METHOD OF PRODUCING A GAS MIXING DEVICE - A gas mixing device capable of safely mixing flammable gas containing, for example, methane or the like and combustion supporting gas such as oxygen-containing gas, and a synthesis gas producing device using this gas mixing device. Flammable gas containing methane or the like and combustion supporting gas such as oxygen-containing gas are supplied into a mixing vessel via a first gas supplying section and a second gas supplying section respectively, and these gases are mixed within a combustion range in the vessel to be discharged via a discharge section. In the mixing vessel, packings for forming a large number of narrow gas flow passages in the vessel are packed so that velocity of the mixed gas flowing in the vessel becomes higher than burning velocity of the flammable gas and the combustion supporting gas. | 11-06-2014 |
20140303792 | SYSTEM AND METHOD FOR DERIVING STORAGE TANK OPERATION PLAN - To derive a feasible solution for an operation plan problem for storage tanks for storing liquefied natural gas, which is a complicated mixed-integer non-linear problem, given tank initial state information, reception plan information, and feed plan information, two solving processes are executed alternately two or more times, respectively: a first solving process that replaces a mixed-integer non-linear programming problem with a mixed-integer linear programming problem by linear approximation of a non-linear expression in non-linear constraints containing the non-linear expression, and solves the problem to derive provisional solutions or final solutions for a reception pattern that prescribes a storage tank that is to receive liquefied natural gas, and a discharge pattern that prescribes a storage tank that is to discharge liquefied natural gas, and a second solving process that replaces a mixed-integer non-linear programming problem with a continuous non-linear programming problem by provisionally fixing a discrete variable in discrete form constraints containing the discrete variable, and solves the problem to derive provisional solutions or final solutions for transitions of storage quantity and storage heat quantity of liquefied natural gas in each storage tank. | 10-09-2014 |
20140041559 | Furnace-Heating Combustion Apparatus - A furnace-heating combustion apparatus that allows adjustment of a ratio between the amount of primary air and the amount of secondary air. A double-tube elongate burner extends through a rear wall portion of an air box disposed away from a furnace wall. The leading end portion of the burner is disposed inside a tube section such that a secondary air conduit is formed between an outer circumferential face of the leading end portion and an inner circumferential face of the tube section. A primary air conduit is provided at the leading end portion of the burner to introduce the air inside the air box from the rear end portion and cause it to flow toward the leading end portion. A burner supporting means is provided for to allow adjustment of the position of the burner in the longitudinal direction relative to the rear wall of the air box. | 02-13-2014 |
20130236846 | Combustion Device for Melting Furnace, and Melting Furnace - An object of the present invention is to provide a combustion device which does not cause an increase in the amount of generated NOx or a degradation in efficiency due to a lower flame luminance, even when the combustion space is limited in the lengthwise direction of the flame. A fuel ejector is configured so as to be provided with at least a first fuel ejector and a second fuel ejector lined up in a specific direction as viewed in the lengthwise direction of fuel ejection, and is configured so that a first ejection stream ejected from the first fuel ejector and the second fuel ejector collide on the downstream side of ejection. | 09-12-2013 |
20130205665 | Enrichment System for Combustible Gas - A combustible gas enrichment system includes an adsorption unit charged therein with an adsorbent for selectively adsorbing a combustible gas, a source gas feeding means capable of feeding source gas containing the combustible gas into the adsorption unit from the outside, a suctioning means capable of suctioning the gas from the inside of the adsorption unit and a controlling means for executing an adsorption process for feeding the source gas into the adsorption unit for adsorption of the combustible gas to the adsorbent and a desorption process for desorbing the combustible gas from the adsorbent under the suction force of the suctioning means after the adsorption process and taking the desorbed combustible gas to the outside. The controlling means operates the suctioning means such that the suction force of the suctioning means when no desorption process is effected is smaller than the suction force when the desorption process is effected. | 08-15-2013 |
20130200077 | Cryogenic Tank - There is provided a cryogenic tank having a dual construction for storing ultralow temperature liquid with improvement which allows simplicity in its construction and readiness of setup and allows reduction in the setup, yet achieves high reliability. For accomplishing the above-noted object, in a cryogenic tank having a dual construction with an inner tank for storing low-temperature liquefaction fluid therein and an outer tank enclosing the bottom and the shell of the inner tank. The inner tank includes a bottomed inner vessel formed of concrete and an inner cold resistant relief covering the inner face of the inner vessel. The outer tank includes a bottomed outer vessel formed of concrete and an outer cold resistant relief covering the inner face of the outer vessel. | 08-08-2013 |
20130164180 | Method And Apparatus For Manufacturing Hydrogen-Containing Gas - There is provided a technique and an apparatus for manufacturing a hydrogen-containing gas. An oxygen-containing gas is mixed with a feed gas obtained by mixing steam with a hydrocarbon fuel, this mixture is introduced into a catalytic reaction chamber, and a partial oxidation reaction and a steam reforming reaction are conducted to obtain a hydrogen-containing gas. In this reforming, an antechamber of the catalytic reaction chamber is heated up to a self-ignition temperature in a first catalyst section, where the self-ignition temperature is the temperature at which a mixed gas self-ignites during the advection period required for the mixed gas to move from a mixing chamber to the catalytic reaction chamber, with this temperature being at least a minimum partial-oxidation temperature and lower than a minimum steam reforming temperature. | 06-27-2013 |
20130137055 | Combustion Device for Melting Furnace and Melting Furnace - A combustion device for a melting furnace, capable of heating a melting target object and the ceiling portion of the furnace with the radiant heat of the flame, including a combustion space above the location of the melting target object, including a fuel injection nozzle having a plurality of fuel injecting portions, which portions include orifices disposed side by side horizontally relative to the direction of fuel injection, and formed side by side vertically relative to the same. The orifices are formed radially side by side as seen laterally, with a direction along a middle angle in the angular range between the fuel injection direction of the uppermost fuel injection orifice and the fuel injection direction of the lowermost fuel injection orifice being directed obliquely upwards. The fuel injection orifices of the upper fuel injecting portion are formed radially side by side as seen in the plane view. | 05-30-2013 |
20130136660 | Combustible Gas Enrichment Apparatus - In order to provide a technique for enriching a combustible gas that allows enrichment of the combustible gas to a higher concentration in an efficient manner with minimization of loss of a source material, there are provided an adsorption tower charged with an adsorbent, a feeding/discharging means for feeding a source gas containing a combustible gas and air, a collecting means for desorbing the combustible gas adsorbed to the adsorbent and collecting the desorbed gas, a controlling means for sequentially effecting a combustible gas adsorption process and a combustible gas desorption process, a detecting means for detecting the concentration of the combustible gas in the source gas, and an operation condition setting section for varying an adsorption completion timing for the controlling means to complete the adsorption process, based on the combustible gas concentration detected by the detecting means. | 05-30-2013 |
20130125466 | Method of Enriching Combustible Gas - Disclosed is a method for enriching combustible gas, which suppresses the deterioration and pulverization of an adsorbent without extending a period for pressure equalization. The pressure equalization is effected by opening a pressure equalization passage opening/closing valve incorporated in a pressure equalization passage, after completion of adsorption in a first adsorption tower and after completion of desorption in a second adsorption tower connected to the first adsorption tower via the pressure equalization passage. | 05-23-2013 |
20130095545 | POLYLACTIC ACID DECOMPOSITION METHOD - A primary object of the present invention is to provide a polylactic acid decomposition method that efficiently decomposes polylactic acid so that the polylactic acid can readily undergo degradation by a biological treatment such as methane fermentation. Specifically, the present invention provides a polylactic acid decomposition method involving a step of impregnating a polylactic acid-containing organic material with a treatment solution containing an organic acid salt and/or inorganic acid salt of an amine compound. | 04-18-2013 |
20120274337 | Method and Apparatus for Diagnosing Electrochemical Sensor - A method and apparatus for diagnosing an electrochemical sensor that detects the concentration of a gas are operative for diagnosing whether or not the sensor is in an error state due to a rise in a resistance in the electrolyte of the sensor. Such detection is made on the basis of a current flowing between a sensing electrode and an opposite electrode or a voltage corresponding to the current. A method for diagnosing an electrochemical sensor having a solid or liquid electrolyte between a sensing electrode and an opposite electrode detects the concentration of the gas to be detected on the basis of a current flowing between the sensing electrode and the opposite electrode, or a voltage corresponding to the current. Whether or not the electrochemical sensor is in an error state is diagnosed on the basis of a resistance of the electrolyte between the two electrodes of the electrolyte. | 11-01-2012 |
20120224997 | Reformed Gas Production Method And Reformed Gas Production Apparatus - The present invention relates to a reformed gas production apparatus that includes a reaction chamber containing a reforming catalyst, a supply route to the reaction chamber, a reformed gas conduction route from the reaction chamber, and a reaction chamber temperature control means that controls a temperature of the reaction chamber. The supply route supplies a fluid that includes a fuel containing a hydrocarbon having at least two carbon atoms, at least one of steam and a carbon dioxide-containing gas, and an oxygen-containing gas. The fuel can be a mixed fuel that includes a plurality of types of hydrocarbons that each have at least two carbon atoms. The reaction chamber temperature control means relates to the thermal decomposition index temperature of the fuel, which defines an upper limit temperature of the reforming reaction region. | 09-06-2012 |
20120208098 | FUEL CELL SYSTEM - A fuel cell system includes a source gas passage including a first desulfurizer that has a desulfurization performance relative to a source gas having a relatively higher dew point, and a second desulfurizer that has the desulfurization performance relative to a source gas having a relatively lower dew point and the source gas having the relatively higher dew point. The desulfurization performance of the second desulfurizer relative to the source gas having the relatively higher dew point is lower than the desulfurization performance of the second desulfurizer relative to the source gas having the relatively lower dew point. The first desulfurizer, the second desulfurizer, and a flowmeter are arranged at the source gas passage in the aforementioned order from an upstream side to a downstream side of the source gas passage in a flow direction of the source gas. | 08-16-2012 |
20120208097 | FUEL CELL SYSTEM AND DESULFURIZATION UNIT FOR THE SAME - A desulfurization unit for a fuel cell system includes a first desulfurizer arranged in a temperature environment ranging from 50° C. to 200° C. and accommodating a desulfurizing agent including a porous material serving as a base material, the desulfurizing agent exerting a desulfurization effect in a normal temperature range, the first desulfurizer adsorbing a sulfur compound included in a source gas in the temperature environment ranging from 50° C. to 200° C. when the source gas having a low dew point is supplied through a source gas passage to the first desulfurizer and when the source gas having a high dew point is supplied through the source gas passage to the first desulfurizer. | 08-16-2012 |
20120189523 | Method and Apparatus for Removing Low-Concentration Methane - Disclosed are a method and an apparatus for removing methane from a gas which contains the methane at such a low concentration as not to be rendered into a combustible range with whatever ratio of air mixed therewith. In order to ensure satisfactory methane removal performance even in the coexistence of sulfur compound and in order also to provide stable methane removal performance for an extended period of time without performance deterioration even when the methane concentration varies significantly, the gas is fed to a heat exchanger for preheating and methane is exposed to an oxidation catalyst which oxidizes the methane through contact therewith. Then, the resultant gas is fed again to the heat exchanger for heat recovery through heat exchange with un-reacted gas. Further, the flow rate of gas to be treated is varied, according to a concentration of the methane contained in this treated gas. | 07-26-2012 |
20120017622 | Solar Light (Heat) Absorption Material and Heat Absorption/Accumulation Material and Solar Light (Heat) Absorption/Control Building Component Using the Same - A solar light (heat) absorption material is provided which has an excellent solar light (heat) absorbing ability and a simple structure, and may be usable as a low-cost and high-performance heat absorption/accumulation material, the inventive material being usable also as a solar light (heat) absorption/control building component that allows easy change of its solar light (heat) absorption/control ability. The material comprises particles dispersed into a liquid medium having a specific heat ranging from 0.4 to 1.4 cal/g/° C. and a melting point of 5° C. or lower. The dispersed particles have L*value of 30 or less as determined by the CIE-Lab color system (light source D65). | 01-26-2012 |
20110287341 | Cell for Solid Oxide Fuel Cell - [OBJECT] In an SOFC cell comprising a Cr-containing alloy or the like and an air electrode bonded together, the invention is to provide a cell capable of effectively restricting occurrence of Cr poisoning of the air electrode and capable also of effectively restricting occurrence of oxidation deterioration due to Cr depletion in the alloy or the like. | 11-24-2011 |
20110229383 | Carbon Monoxide Removal Method, Operating Method For Fuel Reforming System, Carbon Monoxide Remover, Fuel Removal System Having The Carbon Monoxide Remover, And Filter - In operating the carbon monoxide removal reactor or the fuel reforming system, there is provided a technique for removing carbon monoxide in a stable manner for an extended period of time. In a method of removing carbon monoxide including an introducing step of introducing a reactant gas including mixture gas and an oxidizer added thereto to a carbon monoxide removal reactor forming in its casing a catalyst layer comprising a carbon monoxide removal catalyst for removing carbon monoxide contained in the mixture gas and a removing step of removing the carbon monoxide by causing the oxidizer to react with the mixture gas on the carbon monoxide removal catalyst, in said introducing step, the reactant gas of 100° C. or lower is introduced to the carbon monoxide removal reactor. | 09-22-2011 |
20110147667 | Method of Operating Ruthenium Catalyst Reactor - A catalytic reactor including: a reaction container filled with a catalyst having ruthenium; and an introduction part for introducing a material fluid to the reaction container. The reaction container is supplied with a mixed gas as material fluid to produce synthetic gas containing hydrogen and carbon monoxide in the presence of the catalyst. The introduction part is connected to the reaction container in a horizontal direction or a direction inclined downward from above a horizontal plane, and a height of the catalyst filled in the reaction container is adjusted above a height at which the material fluid is fed from the introduction part to the reaction container. Also, a method of using the catalytic reactor including monitoring a molar ratio of carbon and oxygen contained in the material fluid and stopping the supply of an oxygen-containing gas to the reaction container before the molar ratio becomes excessively low. | 06-23-2011 |
20110083737 | TITANIUM OXIDE-COVERED CARBON FIBER AND POROUS TITANIUM OXIDE-COVERED CARBON MATERIAL COMPOSITION - With a view to realizing a titanium oxide composite that has a large surface area and that enables efficient transfer of electrons by covering a surface of rod-like or fibrous carbon with a covering layer comprising titanium oxide particles connected to one another, an object of the invention is to develop a material useful as an active material for dye-sensitized solar cells, and a process for producing the material; a porous titanium oxide-covered carbon material composition, and a process for producing the composition; and a photoelectric conversion element comprising the titanium oxide-covered carbon material or porous titanium oxide-covered carbon material composition. | 04-14-2011 |
20110079276 | TITANIUM OXIDE STRUCTURE AND POROUS TITANIUM OXIDE COMPOSITION - With a view to realizing a titanium oxide structure that has a large surface area and enables efficient transfer of ions and electrons by virtue of titanium oxide particles connected to one another, an object of the invention is to develop a material useful as an active material for dye-sensitized solar cells, and a process for producing the material; a porous titanium oxide composition and a process for producing the composition; and a photoelectric conversion element comprising the titanium oxide structure or porous titanium oxide composition. | 04-07-2011 |
20100276631 | POSITIVE ELECTRODE MATERIAL OF NONAQUEOUS LITHIUM-BASED ELECTRICITY STORAGE DEVICE - A positive electrode material of an electricity storage device maintaining a high capacity at a high output density is provided. | 11-04-2010 |
20100200812 | PRODUCTION METHOD FOR RAW GAS FOR AMMONIA SYNTHESIS AND PRODUCTION APPARATUS THEREFOR - There is provided a method for producing a raw gas for ammonia synthesis in which light hydrocarbons from a tube | 08-12-2010 |
20100196833 | Combustible Gas Processing System and Combustible Gas Processing Method - Disclosed is a system for processing a combustible gas, which comprises a catalytic combusting means for receiving an oxygen-containing combustible gas that contains oxygen in addition to the combustible gas as the principal component thereof, causing this oxygen-containing combustible gas to contact an oxidation catalyst for partial combustion thereof, to produce the resultant partially combusted gas as a compressible combustible gas. | 08-05-2010 |
20100178587 | Cell for Solid Oxide Fuel Cell and Method for Manufacturing Same - There is provided an SOFC cell and manufacturing method thereof whereby the occurrence of Cr poisoning of the air electrode can be satisfactorily suppressed in an SOFC cell formed by joining together an air electrode with a Cr-containing alloy or the like. A Cr(VI) oxide suppressing state is induced for suppressing the formation of Cr(VI) oxides in an alloy or oxide during a firing process in which an alloy or oxide and an air electrode are fired in a state of being joined together. | 07-15-2010 |
20100178563 | COMPOSITE NEGATIVE ELECTRODE ACTIVE MATERIAL AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - Disclosed is a composite negative electrode active material including a graphitizable carbon material containing a layered structure formed of stacked carbon layers partially having a three-dimensional regularity, and a low crystalline carbon material. A negative electrode including the composite negative electrode active material is used to produce a non-aqueous electrolyte secondary battery. The non-aqueous electrolyte secondary battery thus produced has a high energy density and demonstrates a high output/input performance for a long period of time in various environments of high to low temperatures. | 07-15-2010 |
20100115840 | Flammable Gas Concentration System - A flammable gas concentration system comprises concentrating means for acquiring at least a portion of the product gas, concentrating the flammable gas included in the acquired product gas, and generating a high-concentration gas; and mixing means for acquiring the raw gas and the high-concentration gas generated by the concentrating means, mixing the acquired high-concentration gas and the raw gas, and generating the product gas. | 05-13-2010 |
20100005958 | Flammable Gas Concentration Device and Flammable Gas Concentration Method - A flammable gas concentration device comprises an adsorption tower filled by an adsorbent for adsorbing a flammable gas; feeding means for feeding a raw gas containing air and a flammable gas to the adsorption tower via a feeding path and discharging an exhaust gas in the raw gas which has not been adsorbed to the adsorbent to an outside of the adsorption tower via a discharge path; collection means for reducing a pressure in the adsorption tower lower than an atmospheric pressure, and desorbing the flammable gas adsorbed by the adsorbent and collecting the flammable gas through a collection path; and control means for sequentially executing a flammable gas adsorption step of feeding the raw gas to the adsorption tower and discharging the exhaust gas from the adsorption tower by the feeding mean, and a flammable gas desorption step of collecting the flammable gas desorbed by the collection means. | 01-14-2010 |
20090156775 | POLYSILANE AND POLYSILANE-CONTAINING RESIN COMPOSITION - A polysilane having excellent functionalities (e.g., solubility in a solvent and reactivity) is obtained by introducing a structural unit of the following formula (1) to a polysilane through a reaction of a dihalosilane having a Si—H bond and adding a hydrosilylatable compound (e.g., a compound having a carbon-carbon unsaturated bond) to the Si—H bond, | 06-18-2009 |
20080263953 | Reformed Gas Production Method and Reformed Gas Production Apparatus - The invention provides a method for operating a reformed gas production apparatus with which it is possible to achieve a high reforming efficiency while preventing a drop in catalyst activity due to the deposition of carbon. The reformed gas production method uses a reforming catalyst to reform a fuel that contains a hydrocarbon having at least two carbon atoms to produce a reformed gas that includes methane, hydrogen, and carbon monoxide. With this method, a fluid that includes the fuel, at least one of steam and a carbon dioxide-containing gas, and an oxygen-containing gas, is supplied to a reforming reaction region, and with the thermal decomposition index temperature of the fuel, which is determined by the type and the concentration of the hydrocarbons having at least two carbon atoms that make up the fuel, serving as an upper limit temperature of the reforming reaction region, the fluid is brought into contact with the reforming catalyst to produce the reformed gas. | 10-30-2008 |
20080199380 | Carbon Monoxide Removal Method, Operating Method for Fuel Reforming System, Carbon Monoxide Remover, Fuel Removal System Having the Carbon Monoxide Remover, and Filter - In operating the carbon monoxide removal reactor or the fuel reforming system, there is provided a technique for removing carbon monoxide in a stable manner for an extended period of time. In a method of removing carbon monoxide including an introducing step of introducing a reactant gas including mixture gas and an oxidizer added thereto to a carbon monoxide removal reactor forming in its casing a catalyst layer comprising a carbon monoxide removal catalyst for removing carbon monoxide contained in the mixture gas and a removing step of removing the carbon monoxide by causing the oxidizer to react with the mixture gas on the carbon monoxide removal catalyst, in said introducing step, the reactant gas of 100° C. or lower is introduced to the carbon monoxide removal reactor. | 08-21-2008 |