Patents by Inventor Norihide Egami
Norihide Egami 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: 9993766Abstract: A carbon dioxide capture apparatus according to an embodiment includes an absorber and a stripper. The liquid level of the absorbing liquid within the absorber is measured by an absorber level gauge. A regulating liquid that contains water and is used to control the proportion of water contained in the absorbing liquid is stored in a regulating liquid tank. The flow rate of the regulating liquid to be supplied from the regulating liquid tank to the absorber or the stripper is controlled by a regulating liquid control valve. A controller controls the opening degree of the regulating liquid control valve based on the liquid level of the absorbing liquid measured by the absorber level gauge.Type: GrantFiled: July 13, 2015Date of Patent: June 12, 2018Assignee: KABUSHIKI KAISHA TOSHIBAInventors: Noriko Chiba, Masatoshi Hodotsuka, Norihide Egami
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Publication number: 20160136566Abstract: A carbon dioxide capture apparatus according to an embodiment includes an absorber and a stripper. The liquid level of the absorbing liquid within the absorber is measured by an absorber level gauge. A regulating liquid that contains water and is used to control the proportion of water contained in the absorbing liquid is stored in a regulating liquid tank. The flow rate of the regulating liquid to be supplied from the regulating liquid tank to the absorber or the stripper is controlled by a regulating liquid control valve. A controller controls the opening degree of the regulating liquid control valve based on the liquid level of the absorbing liquid measured by the absorber level gauge.Type: ApplicationFiled: July 13, 2015Publication date: May 19, 2016Applicant: Kabushiki Kaisha ToshibaInventors: Noriko CHIBA, Masatoshi HODOTSUKA, Norihide EGAMI
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Publication number: 20140033716Abstract: In one embodiment, a steam turbine plant includes a first turbine driven by steam from a boiler, a second turbine driven by steam from a reheater, a third turbine driven by the steam exhausted from the second turbine, and a carbon dioxide capturing system including a reboiler to heat an absorbing liquid with the steam exhausted or extracted from the second turbine. The plant further includes a steam pipe to feed the steam exhausted from the second turbine to the third turbine, and a first steam extraction pipe to send the steam exhausted or extracted from the second turbine to the reboiler. The plant further includes a pressure detector to detect a pressure of the steam flowing through the steam pipe or the first steam extraction pipe, a pressure adjustment valve provided on the steam pipe, and a controller to control the valve based on the detected pressure.Type: ApplicationFiled: July 17, 2013Publication date: February 6, 2014Inventors: Shinsuke ITOU, Masahiko Sanada, Norihide Egami, Kensuke Suzuki, Kiyohiko Iwasa
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Publication number: 20120325089Abstract: In accordance with an embodiment, a carbon dioxide capturing device includes an absorption tower, a regeneration tower, and a cooling unit. A gas containing carbon dioxide and a lean liquid is introduced to the absorption tower which brings the gas and the lean liquid into contact with each other to generate a rich liquid. The regeneration tower generates a lean liquid by diffusing vapor containing carbon dioxide from the rich liquid from the absorption tower, and then returns the lean liquid to the absorption tower. The cooling unit cools at least one of the gas, the lean liquid, and the rich liquid. The cooling unit includes first and second coolers connected in series to each other, by first and second cooling mediums, respectively. The first cooling medium is generated outside the device without using power for cooling in the device. The first cooler is located upstream of the second cooler.Type: ApplicationFiled: June 14, 2012Publication date: December 27, 2012Applicant: Kabushiki Kaisha ToshibaInventors: Mitsuru UDATSU, Kensuke Suzuki, Satoshi Saito, Masatoshi Hodotsuka, Hideo Kitamura, Norihide Egami
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Patent number: 6435138Abstract: An exhaust heat recovery boiler in which an exhaust gas discharged from a gas turbine into a boiler duct to recover a heat of the exhaust gas and ammonia is injected to and mixed with the exhaust gas to reduce nitrogen oxide contained in the exhaust gas, the exhaust heat recovery boiler comprising: a boiler duct of a horizontal installation type having an inner hollow portion along which an exhaust gas flows from an upstream side to a downstream side; a superheater; an evaporator; a denitration reactor; and an economizer, which are disposed inside the boiler duct in this order from the upstream side to the downstream side of the exhaust gas flow therein. A drum is disposed outside the boiler duct and connected to the evaporator and a downcomer pipe extending from the drum into the boiler duct.Type: GrantFiled: June 28, 2001Date of Patent: August 20, 2002Assignee: Kabushiki Kaisha ToshibaInventors: Hideaki Shimada, Norihide Egami, Takayuki Nagashima
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Patent number: 6334410Abstract: An exhaust heat recovery boiler in which an exhaust gas discharged from a gas turbine into a boiler duct to recover a heat of the exhaust gas and ammonia is injected to and mixed with the exhaust gas to reduce nitrogen oxide contained in the exhaust gas, the exhaust heat recovery boiler comprising: a boiler duct of a horizontal installation type having an inner hollow portion along which an exhaust gas flows from an upstream side to a downstream side; a superheater; an evaporator; a denitration reactor; and an economizer, which are disposed inside the boiler duct in this order from the upstream side to the downstream side of the exhaust gas flow therein. A drum is disposed outside the boiler duct and connected to the evaporator and a downcomer pipe extending from the drum into the boiler duct.Type: GrantFiled: December 4, 2000Date of Patent: January 1, 2002Assignee: Kabushiki Kaisha ToshibaInventors: Hideaki Shimada, Norihide Egami, Takayuki Nagashima
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Publication number: 20010035136Abstract: An exhaust heat recovery boiler in which an exhaust gas discharged from a gas turbine into a boiler duct to recover a heat of the exhaust gas and ammonia is injected to and mixed with the exhaust gas to reduce nitrogen oxide contained in the exhaust gas, the exhaust heat recovery boiler comprising: a boiler duct of a horizontal installation type having an inner hollow portion along which an exhaust gas flows from an upstream side to a downstream side; a superheater; an evaporator; a denitration reactor; and an economizer, which are disposed inside the boiler duct in this order from the upstream side to the downstream side of the exhaust gas flow therein. A drum is disposed outside the boiler duct and connected to the evaporator and a downcomer pipe extending from the drum into the boiler duct.Type: ApplicationFiled: June 28, 2001Publication date: November 1, 2001Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Hideaki Shimada, Norihide Egami, Takayuki Nagashima
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Patent number: 6289850Abstract: An exhaust heat recovery boiler in which an exhaust gas discharged from a gas turbine into a boiler duct to recover a heat of the exhaust gas and ammonia is injected to and mixed with the exhaust gas to reduce nitrogen oxide contained in the exhaust gas, the exhaust heat recovery boiler comprising: a boiler duct of a horizontal installation type having an inner hollow portion along which an exhaust gas flows from an upstream side to a downstream side; a superheater; an evaporator; a denitration reactor; and an economizer, which are disposed inside the boiler duct in this order from the upstream side to the downstream side of the exhaust gas flow therein. A drum is disposed outside the boiler duct and connected to the evaporator and a downcomer pipe extending from the drum into the boiler duct.Type: GrantFiled: February 7, 2000Date of Patent: September 18, 2001Assignee: Kabushiki Kaisha ToshibaInventors: Hideaki Shimada, Norihide Egami, Takayuki Nagashima
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Publication number: 20010000094Abstract: An exhaust heat recovery boiler in which an exhaust gas discharged from a gas turbine into a boiler duct to recover a heat of the exhaust gas and ammonia is injected to and mixed with the exhaust gas to reduce nitrogen oxide contained in the exhaust gas, the exhaust heat recovery boiler comprising: a boiler duct of a horizontal installation type having an inner hollow portion along which an exhaust gas flows from an upstream side to, a downstream side; a superheater; an evaporator; a denitration reactor; and an economizer, which are disposed inside the boiler duct in this order from the upstream side to the downstream side of the exhaust gas flow therein. A drum is disposed outside the boiler duct and connected to the evaporator and a downcomer pipe extending from the drum into the boiler duct.Type: ApplicationFiled: December 4, 2000Publication date: April 5, 2001Inventors: Hideaki Shimada, Norihide Egami, Takayuki Nagashima
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Patent number: 6050226Abstract: An exhaust heat recovery boiler in which an exhaust gas discharged from a gas turbine into a boiler duct to recover a heat of the exhaust gas and ammonia is injected to and mixed with the exhaust gas to reduce nitrogen oxide contained in the exhaust gas, the exhaust heat recovery boiler comprising: a boiler duct of a horizontal installation type having an inner hollow portion along which an exhaust gas flows from an upstream side to a downstream side; a superheater; an evaporator; a denitration reactor; and an economizer, which are disposed inside the boiler duct in this order from the upstream side to the downstream side of the exhaust gas flow therein. A drum is disposed outside the boiler duct and connected to the evaporator and a downcomer pipe extending from the drum into the boiler duct.Type: GrantFiled: October 7, 1998Date of Patent: April 18, 2000Assignee: Kabushiki Kaisha ToshibaInventors: Hideaki Shimada, Norihide Egami, Takayuki Nagashima