Patents Assigned to MITSUBISHI HEAVY INDUSTRIES ENGINEERING, LTD.
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Publication number: 20210261437Abstract: A treatment apparatus for treating wastewater produced by purification of an energy gas and containing at least an ammonium ion includes a decompression facility for reducing a pressure of the wastewater, an alkaline agent addition facility for adding an alkaline agent to the wastewater whose pressure has been reduced, and an ammonia stripping facility for stripping ammonia in the wastewater to which the alkaline agent has been added.Type: ApplicationFiled: July 18, 2019Publication date: August 26, 2021Applicant: Mitsubishi Heavy Industries Engineering, Ltd.Inventors: Kaori Yoshida, Rikio Kan, Seiji Kakesako
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Publication number: 20210245099Abstract: A method of attaching/detaching a catalytic unit according to an embodiment is a method of attaching/detaching a catalytic unit accommodated in a reactor housing of a catalytic reactor, including a step of passing the catalytic unit through a gas inlet formed at a top portion of the reactor housing to attach or detach the catalytic unit to or from the reactor housing having a cylindrical shape extending in a vertical direction and configured such that a gas having a gauge pressure of 0.2 Mpa or more is introduced thereto.Type: ApplicationFiled: July 8, 2019Publication date: August 12, 2021Applicant: Mitsubishi Heavy Industries Engineering, Ltd.Inventors: Kaori Yoshida, Rikio Kan, Moritoshi Murakami, Naoya Matsumoto
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Publication number: 20210245084Abstract: A gas purification apparatus includes: a housing to which a gas is introduced; a filter portion for removing an impure substance in the gas from the gas, the filter portion being disposed inside the housing; and a gas purification agent for removing a removal target substance in the gas from the gas, the gas purification agent being disposed, inside the housing, on the filter potion or in a space at a downstream side of the filter portion with respect to a flow of the gas.Type: ApplicationFiled: September 5, 2019Publication date: August 12, 2021Applicant: Mitsubishi Heavy Industries Engineering, Ltd.Inventors: Masayuki Inui, Makoto Susaki, Akihito Otani
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Patent number: 11084509Abstract: This railway vehicle is provided with: a bracket including a contact surface which is in contact with a second surface of a second plate member, and also including a recess which is provided in a portion facing an uneven surface; and a dynamic vibration absorber including a damper section which is located on the side opposite the contact surface and which is affixed to the bracket, and also including a weight section which is disposed on the side opposite the side to which the bracket is provided and which is disposed on the damper section. The bracket is separated from the uneven surface.Type: GrantFiled: November 2, 2017Date of Patent: August 10, 2021Assignee: MITSUBISHI HEAVY INDUSTRIES ENGINEERING, LTD.Inventors: Katsuya Kuroki, Akihisa Kawauchi, Hiroyuki Kono, Takeshi Kora, Yoshinori Mitsui, Eigo Hayashi
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Publication number: 20210238491Abstract: A gasification gas treatment facility for treating a gasification gas obtained by gasification of a fuel includes: a first heat exchanger for performing heat exchange between a purified gas obtained by removing at least ammonia and hydrogen chloride from the gasification gas and steam at a saturation temperature; a second heat exchanger for performing heat exchange between the gasification gas and at least condensed water produced by the heat exchange in the first heat exchanger to produce the steam at the saturation temperature; and a circulation system for circulating a circulating fluid including at least one of the steam or the condensed water between the first heat exchanger and the second heat exchanger. The circulation system is configured to supply the circulating fluid including at least the condensed water at the saturation temperature produced in the first heat exchanger to the second heat exchanger.Type: ApplicationFiled: July 18, 2019Publication date: August 5, 2021Applicant: Mitsubishi Heavy Industries Engineering, Ltd.Inventors: Kaori Yoshida, Rikio Kan, Seiji Kakesako
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Patent number: 11071943Abstract: An absorption liquid regeneration apparatus includes: a regeneration tower for regenerating a CO2 absorption liquid; a reflux water drum configured to separate released gas from the regeneration tower into CO2 gas and condensed water, and return the condensed water to the regeneration tower; and a cleaning part installed in a gas-phase part of the reflux water drum or in a CO2 flow passage through which the CO2 gas having flowed from the gas-phase part flows, and configured to remove a CO2 absorption agent contained in the CO2 gas by using a cleaning liquid. The cleaning liquid has a lower concentration of the CO2 absorption agent than the condensed water stored in a liquid-phase part of the reflux water drum.Type: GrantFiled: October 10, 2018Date of Patent: July 27, 2021Assignee: Mitsubishi Heavy Industries Engineering, Ltd.Inventors: Osamu Miyamoto, Takashi Kamijo, Tatsuya Tsujiuchi
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Patent number: 11073446Abstract: A wear inspection apparatus includes a data acquisition unit which is configured to acquire surface shape data including information indicating a shape of a surface of a part wearing as a vehicle travels, and an approximation processing unit which is configured to calculate an approximation line for the acquired surface shape data and calculates a degree of wear of the part from the approximation line and a worn portion included in the surface shape data.Type: GrantFiled: March 15, 2017Date of Patent: July 27, 2021Assignee: MITSUBISHI HEAVY INDUSTRIES ENGINEERING, LTD.Inventor: Kazuyuki Wakasugi
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Patent number: 11071942Abstract: A reclaiming apparatus includes: a container in which a reclaiming process of an absorption liquid is performed; an absorption liquid supply line for supplying the container with the absorption liquid; a heat exchange device, installed inside the container, for heating a liquid inside the container; a circulation line for extracting the liquid inside the container, circulating the liquid and returning the liquid to the container; and a circulation pump installed in the circulation line.Type: GrantFiled: October 10, 2018Date of Patent: July 27, 2021Assignee: Mitsubishi Heavy Industries Engineering, Ltd.Inventors: Osamu Miyamoto, Takashi Kamijo, Tatsuya Tsujiuchi
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Publication number: 20210220810Abstract: A catalytic reactor according to an embodiment includes a catalytic unit including at least one catalyst having a honeycomb structure in which a plurality of passages extending in an axial direction are formed, a reactor housing accommodating the catalytic unit, and a seal plate sealing between an outer periphery of the catalytic unit and an inner periphery of the reactor housing. The seal plate seals between the outer periphery of the catalytic unit and the inner periphery of the reactor housing at an upstream end portion of the catalytic unit with respect to a flow of a fluid flowing in the reactor housing.Type: ApplicationFiled: July 8, 2019Publication date: July 22, 2021Applicant: Mitsubishi Heavy Industries Engineering, Ltd.Inventors: Kaori Yoshida, Rikio Kan, Naoya Matsumoto
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Patent number: 11059126Abstract: A production method of a joint material includes a tab installation step of installing an end tab on a pair of workpieces to be joined at a joining line therebetween by friction stir welding, a tool installation step of installing a probe of a tool for friction stir welding at a cutout portion; an approach step of moving the tool while rotating itself from an opening into the cutout portion; a waiting step of causing the tool for friction stir welding to standby in the cutout portion at an extension line; and a joining step of starting movement of the tool along the joining line at a time at which a temperature of the workpieces at a joining portion in front of the tool in an advancing direction of the tool in the waiting step is a predetermined temperature or more and joining the workpieces with each other.Type: GrantFiled: November 8, 2019Date of Patent: July 13, 2021Assignee: MITSUBISHI HEAVY INDUSTRIES ENGINEERING, LTD.Inventor: Yoshinori Kato
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Patent number: 11045757Abstract: A reclaiming apparatus includes: a container; an absorption-liquid supply line for supplying the container with an absorption liquid containing an absorption agent; a water supply line for supplying the container with a water; a steam discharge line for discharging steam from the container; a heating device for heating a liquid containing at least one of the water or the absorption liquid; and a control device configured to determine, on the basis of a temperature of the liquid stored in the container, an ending timing of an absorption-agent recovery process of recovering steam containing the absorption agent via the steam discharge line by heating of the liquid with the heating device.Type: GrantFiled: October 10, 2018Date of Patent: June 29, 2021Assignee: Mitsubishi Heavy Industries Engineering, Ltd.Inventors: Osamu Miyamoto, Takashi Kamijo, Tatsuya Tsujiuchi
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Publication number: 20210154617Abstract: A dehydration device removes moisture from a process gas compressed by a compressor, and includes a contactor that causes a dehydration solvent to absorb the moisture, a still column that separates the moisture from the dehydration solvent, a carrying line that carries the dehydration solvent from the contactor to the still column, a dehydration solvent conveying pump, a bypass line that couples the carrying lines upstream and downstream of the dehydration solvent conveying pump, a first on-off valve disposed in the bypass line, and a control device. In a case where the pressure detected by a pressure sensor is lower than a first predetermined pressure, the control device closes the first on-off valve and causes the conveying pump to operate, whereas in a case where the pressure detected by the pressure sensor is equal to or higher than the first predetermined pressure, the control device opens the first on-off valve and causes the conveying pump to stop.Type: ApplicationFiled: November 26, 2019Publication date: May 27, 2021Applicant: Mitsubishi Heavy Industries Engineering, Ltd.Inventors: Osamu Miyamoto, Masayuki Inui, Takahito Yonekawa
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Patent number: 11014042Abstract: A nitrogen oxide absorbing unit, a nitrogen oxide absorbing liquid extraction line, a nitrogen oxide absorbing liquid heating/regenerating unit, a released gas line, and a regenerated liquid discharge line are provided. The nitrogen oxide absorbing unit is configured to absorb and remove nitrogen oxides in exhaust gas with nitrogen oxide absorbing liquid by introducing the exhaust gas containing nitrogen oxides and carbon dioxide. Through the nitrogen oxide absorbing liquid extraction line, the circulating nitrogen oxide absorbing liquid is extracted from a nitrogen oxide absorbing liquid circulation line. The nitrogen oxide absorbing liquid heating/regenerating unit is configured to obtain released gas containing at least nitrogen monoxide and carbon dioxide and nitrogen oxide absorbing liquid regenerated liquid by subjecting the nitrogen oxide absorbing liquid to heating and regeneration treatment.Type: GrantFiled: January 24, 2018Date of Patent: May 25, 2021Assignee: Mitsubishi Heavy Industries Engineering, Ltd.Inventors: Hiroshi Tanaka, Takuya Hirata, Takashi Kamijo, Tatsuya Tsujiuchi
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Patent number: 11001547Abstract: A method for producing methanol includes obtaining reformed gas by subjecting raw material gas containing methane to partial oxidation reforming by use of oxygen; reducing a CO/CO2 ratio in the reformed gas; and obtaining produced gas containing methanol from the reformed gas with the reduced CO/CO2 ratio by using any of a fixed-bed reactor and an isothermal reactor.Type: GrantFiled: November 11, 2016Date of Patent: May 11, 2021Assignee: Mitsubishi Heavy Industries Engineering, Ltd.Inventor: Mikiya Sakurai
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Patent number: 10988427Abstract: An olefin and methanol co-production plant for co-production of an olefin and methanol from a source gas containing methane includes: an olefin production unit for producing the olefin; and a methanol production unit for producing methanol from a carbon oxide gas in the olefin production unit. The olefin production unit includes a partial oxidative coupling device for producing the olefin by partial oxidative coupling reaction of methane contained in the source gas. The methanol production unit includes a reforming device for producing hydrogen by reforming reaction of methane, and a methanol production device for producing methanol by reaction with hydrogen produced by the reforming device. At least one of the reforming device or the methanol production device is configured to perform reaction using the carbon oxide gas in the olefin production unit.Type: GrantFiled: December 14, 2017Date of Patent: April 27, 2021Assignee: Mitsubishi Heavy Industries Engineering, Ltd.Inventors: Shinya Tachibana, Akiyori Hagimoto
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Patent number: 10990729Abstract: The verification-processing device includes an acquisition unit that is configured to acquire a circuit logic model represented by an evaluation expression represented by a logical expression taking as variables, a relay, an element, and a connection line that form a relay logic circuit to be verified, the evaluation expression including at least a logical expression for a case where a failure event occurs in the relay logic circuit; and a determination unit that is configured to determine the logical state of an output of the relay when a failure event occurs in the element or the connection line, based on the circuit logic model.Type: GrantFiled: January 17, 2019Date of Patent: April 27, 2021Assignee: MITSUBISHI HEAVY INDUSTRIES ENGINEERING, LTD.Inventors: Kenji Takao, Keita Hirayama, Noritaka Yanai
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Publication number: 20210113955Abstract: An acid gas regenerator includes a regenerator condenser that condenses moisture from entraining gas entraining a corrosive substance and acid gas discharged from a column top portion of a regenerator that regenerates acid gas absorbent. The regenerator condenser includes: a gas discharge line that discharges the entraining gas from the column top portion of the regenerator, a cooler installed on the discharge line; a gas-liquid separator that separates CO2 gas from regenerator condensed water obtained by condensing vapor using the cooler, a reflux line that refluxes the regenerator condensed water closer to the column top portion than the rich solution introducing unit; a condensed water receiver storing the condensed water introduced by the reflux line; and a first condensed water extraction line that extracts the condensed water from a condensed water extractor of the condensed water receiver and is connected to a lean solution supply line.Type: ApplicationFiled: October 24, 2018Publication date: April 22, 2021Applicant: Mitsubishi Heavy Industries Engineering, Ltd.Inventors: Takuya Hirata, Hiroshi Tanaka, Kaori Yoshida, Takahiko Endo
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Patent number: 10967324Abstract: A reclaiming apparatus includes: a container in which reclaiming process of an absorption liquid is performed; a waste liquid line configured through which a waste liquid from the container flows; a waste liquid cooler, installed in the waste liquid line, for cooling the waste liquid from the container; and a cleaning-water supply line for supplying the waste liquid cooler with cleaning water for cleaning the waste liquid cooler.Type: GrantFiled: October 10, 2018Date of Patent: April 6, 2021Assignee: Mitsubishi Heavy Industries Engineering, Ltd.Inventors: Osamu Miyamoto, Takashi Kamijo, Tatsuya Tsujiuchi
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Patent number: 10960346Abstract: The composite amine absorbing solution according to the present invention absorbs CO2 or H2S or both in a gas, and is obtained by dissolving a linear monoamine, a diamine, and an amide group-containing compound in water. By adopting this composite amine absorbing solution, the composites are interacting in a composite manner, due to an integrated effect of the components, the absorption property of CO2 or H2S or both is favorable, the desorption properties of the CO2 or H2S absorbed when regenerating the absorbing solution become favorable, and the amount of steam from a reboiler used when regenerating the absorbing solution in a CO2 recovery device can be reduced.Type: GrantFiled: January 30, 2018Date of Patent: March 30, 2021Assignee: Mitsubishi Heavy Industries Engineering, Ltd.Inventors: Hiroshi Tanaka, Takuya Hirata, Takashi Kamijo, Tatsuya Tsujiuchi
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Patent number: 10953361Abstract: A CO2 recovery device includes an advanced desulfurization-cooling column that removes sulfur oxides in an exhaust gas and reduces a temperature of the exhaust gas; a CO2 absorption column that removes CO2 in the exhaust gas by bringing the CO2 into contact with a CO2 absorption liquid; and a regeneration column that recovers the CO2 by causing the CO2 absorption liquid to release the CO2 while regenerating the CO2 absorption liquid, and feeds the regenerated CO2 absorption liquid to the CO2 absorption column, where the advanced desulfurization-cooling column includes a circulating line that supplies and circulates a desulfurization-cooling circulation liquid used in order to conduct desulfurization and cooling from a lower part to an upper part of the advanced desulfurization-cooling column, a deep SOx recovery packed bed, and a first cooler that cools the circulation liquid.Type: GrantFiled: December 12, 2016Date of Patent: March 23, 2021Assignee: Mitsubishi Heavy Industries Engineering, Ltd.Inventors: Hiroshi Tanaka, Takuya Hirata, Takashi Kamijo, Tatsuya Tsujiuchi