Patents by Inventor Rikio Kan
Rikio Kan has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11946005Abstract: 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: GrantFiled: July 18, 2019Date of Patent: April 2, 2024Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Kaori Yoshida, Rikio Kan, Seiji Kakesako
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Patent number: 11879104Abstract: A hydrocarbon recovery facility includes: a washing column configured to bring a gas and water into contact to deposit a hydrocarbon contained in the gas into the water; an automatic strainer for continuously removing the hydrocarbon together with part of the water from the water mixed with the hydrocarbon; an oil-water mixing drum for mixing the water and the hydrocarbon removed by the automatic strainer with an organic solvent to prepare an oil-water mixture; and an oil-water separation drum for separating the oil-water mixture prepared in the oil-water mixing drum into an oil phase and a water phase.Type: GrantFiled: February 22, 2019Date of Patent: January 23, 2024Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Kaori Yoshida, Rikio Kan, Seiji Kakesako
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Patent number: 11760950Abstract: A gas purification device includes: a converter packed with a catalyst for hydrolyzing both carbonyl sulfide and hydrogen cyanide; an upstream heat exchanger for heat exchange between a gas to be introduced into the converter and a cooling fluid for cooling the gas; a reaction-temperature estimation member for estimating a reaction temperature inside the converter; and a flow-rate adjustment member for adjusting a flow rate of the cooling fluid flowing into the upstream heat exchanger based on an estimated value of the reaction-temperature estimation member to control the reaction temperature.Type: GrantFiled: March 13, 2019Date of Patent: September 19, 2023Assignee: Mitsubishi Heavy Industries Engineering, Ltd.Inventors: Kaori Yoshida, Rikio Kan, Seiji Kakesako
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Patent number: 11536625Abstract: A tube leak detection device for detecting leak of at least one tube of a heat exchanger which increases a temperature of a liquid by heat exchange between the liquid flowing inside the at least one tube and a fluid flowing outside the at least one tube includes: an inlet opening-and-closing valve and an outlet opening-and-closing valve disposed at an inlet end and an outlet end of the at least one tube, respectively; and a pressure detection member for detecting a pressure inside the at least one tube between the inlet opening-and-closing valve and the outlet opening-and-closing valve.Type: GrantFiled: January 21, 2019Date of Patent: December 27, 2022Assignee: Mitsubishi Heavy Industries Engineering, Ltd.Inventors: Kaori Yoshida, Ayumu Yamazaki, Rikio Kan, Kiyotaka Kunimune, Koji Nakayama
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Patent number: 11441087Abstract: A gas purification device removes a part of ammonia contained in a first gas; recovers a first off-gas containing the removed ammonia, removes hydrogen sulfide and ammonia from a second gas produced by removing the part of ammonia, recovers a second off-gas containing the removed hydrogen sulfide and ammonia, and combusts the first off-gas and the second off-gas. The gas purification device includes: a first combustion chamber in which combustion is performed in a reducing atmosphere; a second combustion chamber in which combustion is performed in a reducing atmosphere downstream of the first combustion chamber; and a third combustion chamber in which combustion is performed in an oxidizing atmosphere downstream of the second combustion chamber. The first off-gas flows into the first combustion chamber and the second off-gas flows into the third combustion chamber.Type: GrantFiled: March 5, 2019Date of Patent: September 13, 2022Assignee: Mitsubishi Heavy Industries Engineering, Ltd.Inventors: Kaori Yoshida, Ayumu Yamazaki, Rikio Kan, Seiji Kakesako
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Patent number: 11413599Abstract: 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: GrantFiled: July 8, 2019Date of Patent: August 16, 2022Assignee: Mitsubishi Heavy Industries Engineering, Ltd.Inventors: Kaori Yoshida, Rikio Kan, Naoya Matsumoto
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Patent number: 11333348Abstract: An exhaust gas cooler includes: a steam drum containing first water; an economizer for heat exchange between exhaust gas and the first water supplied from the steam drum; and a feedwater pipe for supplying the first water with second water having a lower temperature than the first water. The exhaust gas cooler is configured such that the first water flowing out of the economizer is introduced into the steam drum. The second water is divided and supplied to the first water flowing out of the economizer and the first water flowing into the economizer.Type: GrantFiled: February 22, 2019Date of Patent: May 17, 2022Assignee: Mitsubishi Heavy Industries Engineering, Ltd.Inventors: Kaori Yoshida, Moritoshi Murakami, Ayumu Yamazaki, Rikio Kan, Kiyotaka Kunimune, Koji Nakayama
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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: 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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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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Publication number: 20210047574Abstract: A hydrocarbon recovery facility includes: a washing column configured to bring a gas and water into contact to deposit a hydrocarbon contained in the gas into the water; an automatic strainer for continuously removing the hydrocarbon together with part of the water from the water mixed with the hydrocarbon; an oil-water mixing drum for mixing the water and the hydrocarbon removed by the automatic strainer with an organic solvent to prepare an oil-water mixture; and an oil-water separation drum for separating the oil-water mixture prepared in the oil-water mixing drum into an oil phase and a water phase.Type: ApplicationFiled: February 22, 2019Publication date: February 18, 2021Applicant: Mitsubishi Heavy Industries Engineering, Ltd.Inventors: Kaori Yoshida, Rikio Kan, Seiji Kakesako
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Publication number: 20210048366Abstract: A tube leak detection device for detecting leak of at least one tube of a heat exchanger which increases a temperature of a liquid by heat exchange between the liquid flowing inside the at least one tube and a fluid flowing outside the at least one tube includes: an inlet opening-and-closing valve and an outlet opening-and-closing valve disposed at an inlet end and an outlet end of the at least one tube, respectively; and a pressure detection member for detecting a pressure inside the at least one tube between the inlet opening-and-closing valve and the outlet opening-and-closing valve.Type: ApplicationFiled: January 21, 2019Publication date: February 18, 2021Applicant: Mitsubishi Heavy Industries Engineering, Ltd.Inventors: Kaori Yoshida, Ayumu Yamazaki, Rikio Kan, Kiyotaka Kunimune, Koji Nakayama
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Publication number: 20210048187Abstract: An exhaust gas cooler includes: a steam drum containing first water; an economizer for heat exchange between exhaust gas and the first water supplied from the steam drum; and a feedwater pipe for supplying the first water with second water having a lower temperature than the first water. The exhaust gas cooler is configured such that the first water flowing out of the economizer is introduced into the steam drum.Type: ApplicationFiled: February 22, 2019Publication date: February 18, 2021Applicant: Mitsubishi Heavy Industries Engineering, Ltd.Inventors: Kaori Yoshida, Moritoshi Murakami, Ayumu Yamazaki, Rikio Kan, Kiyotaka Kunimune, Koji Nakayama
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Publication number: 20210002569Abstract: A gas purification device includes: a converter packed with a catalyst for hydrolyzing both carbonyl sulfide and hydrogen cyanide; an upstream heat exchanger for heat exchange between a gas to be introduced into the converter and a cooling fluid for cooling the gas; a reaction-temperature estimation member for estimating a reaction temperature inside the converter; and a flow-rate adjustment member for adjusting a flow rate of the cooling fluid flowing into the upstream heat exchanger based on an estimated value of the reaction-temperature estimation member to control the reaction temperature.Type: ApplicationFiled: March 13, 2019Publication date: January 7, 2021Applicant: Mitsubishi Heavy Industries Engineering, Ltd.Inventors: Kaori Yoshida, Rikio Kan, Seiji Kakesako
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Publication number: 20200399548Abstract: A gas purification device removes a part of ammonia contained in a first gas; recovers a first off-gas containing the removed ammonia, removes hydrogen sulfide and ammonia from a second gas produced by removing the part of ammonia, recovers a second off-gas containing the removed hydrogen sulfide and ammonia, and combusts the first off-gas and the second off-gas. The gas purification device includes: a first combustion chamber in which combustion is performed in a reducing atmosphere; a second combustion chamber in which combustion is performed in a reducing atmosphere downstream of the first combustion chamber; and a third combustion chamber in which combustion is performed in an oxidizing atmosphere downstream of the second combustion chamber. The first off-gas flows into the first combustion chamber and the second off-gas flows into the third combustion chamber.Type: ApplicationFiled: March 5, 2019Publication date: December 24, 2020Applicant: Mitsubishi Heavy Industries Engineering, Ltd.Inventors: Kaori Yoshida, Ayumu Yamazaki, Rikio Kan, Seiji Kakesako
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Patent number: 10518210Abstract: A gas clean-up unit includes a first conversion unit configured to perform a first conversion process of converting hydrogen cyanide contained in gas to be treated to ammonia, in presence of a first catalyst and at a first predetermined temperature; a second conversion unit configured to perform a second conversion process of converting carbonyl sulfide in the gas that has been subjected to the first conversion process to hydrogen sulfide, in presence of a second catalyst and at a second predetermined temperature lower than the first predetermined temperature; a cleaning unit configured to perform a cleaning process of bringing the gas into gas-liquid contact with cleaning liquid to remove the ammonia by cleaning; and a desulfurization unit configured to absorb and remove hydrogen sulfide in the gas by bringing the gas that has been subjected to the cleaning process into gas-liquid contact with absorbent.Type: GrantFiled: November 17, 2017Date of Patent: December 31, 2019Assignee: Mitsubishi Heavy Industries Engineering, Ltd.Inventors: Kaori Yoshida, Haruaki Hirayama, Rikio Kan, Seiji Kakesako
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Publication number: 20190176079Abstract: A gas clean-up unit includes a first conversion unit configured to perform a first conversion process of converting hydrogen cyanide contained in gas to be treated to ammonia, in presence of a first catalyst and at a first predetermined temperature; a second conversion unit configured to perform a second conversion process of converting carbonyl sulfide in the gas that has been subjected to the first conversion process to hydrogen sulfide, in presence of a second catalyst and at a second predetermined temperature lower than the first predetermined temperature; a cleaning unit configured to perform a cleaning process of bringing the gas into gas-liquid contact with cleaning liquid to remove the ammonia by cleaning; and a desulfurization unit configured to absorb and remove hydrogen sulfide in the gas by bringing the gas that has been subjected to the cleaning process into gas-liquid contact with absorbent.Type: ApplicationFiled: November 17, 2017Publication date: June 13, 2019Applicant: Mitsubishi Heavy Industries Engineering, Ltd.Inventors: Kaori Yoshida, Haruaki Hirayama, Rikio Kan, Seiji Kakesako