Patents by Inventor Mitsuru Udatsu
Mitsuru Udatsu 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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Acid gas removal control apparatus, acid gas removal control method, and acid gas removing apparatus
Patent number: 11865492Abstract: In one embodiment, an acid gas removing apparatus includes an absorber configured to bring a first gas including an acid gas and a lean solution into contact to discharge a rich solution that is the lean solution having absorbed the acid gas, a regenerator configured to separate the acid gas from the rich solution discharged by the absorber to discharge the lean solution that is the rich solution separated from the acid gas, and a measuring instrument configured to measure a temperature of the rich or lean solution in the regenerator. Furthermore, an acid gas removal control apparatus that controls the acid gas removing apparatus includes a receiver configured to receive the measured temperature, and a controller configured to control resupply of a resupplied solution to the rich or lean solution or removal of an acid component from the rich or lean solution, based on the received temperature.Type: GrantFiled: September 8, 2021Date of Patent: January 9, 2024Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATIONInventors: Yasuhiro Kato, Mitsuru Udatsu, Daigo Muraoka, Hayato Morigaki, Shinji Murai, Koshito Fujita -
Publication number: 20230166213Abstract: According to embodiment, a carbon dioxide capturing system cools a regenerator discharge gas discharged from a regenerator 5 containing carbon dioxide by a cooling unit 8, and then sends the gas to a cleaner 9. The cleaner 9 receives condensed water generated from the regenerator discharge gas cooled by the cooler 9, and a gaseous cooled regenerator discharge gas, and cleans the cooled regenerator discharge gas by a cleaning liquid. The cleaner 9 has a first liquid reservoir 9b configured to store the condensed water, and a second liquid reservoir 9c configured to store the cleaning liquid having cleaned the cooled regenerator discharge gas.Type: ApplicationFiled: January 25, 2023Publication date: June 1, 2023Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATIONInventors: Mitsuru UDATSU, Yusuke HANDA, Hideo KITAMURA
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Patent number: 11583800Abstract: According to embodiment, a carbon dioxide capturing system cools a regenerator discharge gas discharged from a regenerator 5 containing carbon dioxide by a cooling unit 8, and then sends the gas to a cleaner 9. The cleaner 9 receives condensed water generated from the regenerator discharge gas cooled by the cooler 9, and a gaseous cooled regenerator discharge gas, and cleans the cooled regenerator discharge gas by a cleaning liquid. The cleaner 9 has a first liquid reservoir 9b configured to store the condensed water, and a second liquid reservoir 9c configured to store the cleaning liquid having cleaned the cooled regenerator discharge gas.Type: GrantFiled: December 7, 2020Date of Patent: February 21, 2023Inventors: Mitsuru Udatsu, Yusuke Handa, Hideo Kitamura
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Patent number: 11559764Abstract: In one embodiment, a carbon dioxide capturing system includes an absorber to absorb CO2 from first gas into lean liquid, and produce rich liquid that is the lean liquid absorbing the CO2 and second gas that is the first gas removing the CO2, and a regenerator to separate third gas including the CO2 from the rich liquid flowing from the absorber, and provide the lean liquid and the third gas. The system further includes a flowmeter to measure a flow rate of the third gas, a liquid level gauge to measure a liquid level of the lean liquid and/or the rich liquid, and a controller to regulate a quantity of heat energy supplied to the regenerator based on the flow rate of the third gas, and regulate a total amount of the lean liquid and the rich liquid in the system based on the liquid level.Type: GrantFiled: July 27, 2020Date of Patent: January 24, 2023Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATIONInventors: Mitsuru Udatsu, Noriko Takada, Yusuke Handa, Hideo Kitamura
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Patent number: 11358092Abstract: The embodiments provide an acidic gas absorbent kept from deterioration, an acidic gas removal method using the absorbent, and an acidic gas removal apparatus using the same. The acidic gas absorbent contains an amine compound and water, and further contains superfine bubble containing inert gas wherein an average diameter of said superfine bubble is 150 nm or less. The acidic gas removal method provided here employs that absorbent. The acidic gas removal apparatus is equipped with a unit for introducing the superfine bubbles into the absorbent.Type: GrantFiled: September 8, 2020Date of Patent: June 14, 2022Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATIONInventors: Akiko Suzuki, Yoshihiko Nakano, Reiko Yoshimura, Toshihiro Imada, Takashi Kuboki, Kenji Sano, Mitsuru Udatsu
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Patent number: 11291948Abstract: The embodiments provide an acidic gas absorbent having low diffusibility, an acidic gas removal method, and an acidic gas removal apparatus. The acidic gas absorbent according to the embodiment comprises: an amine compound having a vapor pressure of 0.001 to 10 Pa at 20° C.; a water-soluble polymer compound having a mass-average molecular weight of 900 to 200000 and not containing a functional group having a pKa value greater than 7 except for hydroxy; and water.Type: GrantFiled: March 8, 2019Date of Patent: April 5, 2022Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATIONInventors: Akiko Suzuki, Yoshihiko Nakano, Reiko Yoshimura, Toshihiro Imada, Takashi Kuboki, Kenji Sano, Mitsuru Udatsu
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Patent number: 11278842Abstract: Disclosed herein are acid gas absorbents that afford high acid gas (CO2) absorption amount per unit volume and high absorption speed and can prevent the absorbent components from diffusing.Type: GrantFiled: August 20, 2020Date of Patent: March 22, 2022Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATIONInventors: Shinji Murai, Yukishige Maezawa, Tetsuya Kaseda, Takehiko Muramatsu, Satoshi Saito, Mitsuru Udatsu, Daigo Muraoka, Masatoshi Hodotsuka
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ACID GAS REMOVAL CONTROL APPARATUS, ACID GAS REMOVAL CONTROL METHOD, AND ACID GAS REMOVING APPARATUS
Publication number: 20220080347Abstract: In one embodiment, an acid gas removing apparatus includes an absorber configured to bring a first gas including an acid gas and a lean solution into contact to discharge a rich solution that is the lean solution having absorbed the acid gas, a regenerator configured to separate the acid gas from the rich solution discharged by the absorber to discharge the lean solution that is the rich solution separated from the acid gas, and a measuring instrument configured to measure a temperature of the rich or lean solution in the regenerator. Furthermore, an acid gas removal control apparatus that controls the acid gas removing apparatus includes a receiver configured to receive the measured temperature, and a controller configured to control resupply of a resupplied solution to the rich or lean solution or removal of an acid component from the rich or lean solution, based on the received temperature.Type: ApplicationFiled: September 8, 2021Publication date: March 17, 2022Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATIONInventors: Yasuhiro KATO, Mitsuru UDATSU, Daigo MURAOKA, Hayato MORIGAKI, Shinji MURAI, Koshito FUJITA -
Publication number: 20220080348Abstract: The embodiments provide an acidic gas absorbent having low diffusibility, an acidic gas removal method employing the acidic gas absorbent, and also an acidic gas removal apparatus employing the absorbent. The acidic gas absorbent according to the embodiment comprises: a particular tertiary amine compound, such as, an alkyl dialkanol amine or a hydroxyalkyl piperazine; a halogen-free ionic surfactant; and an aqueous solvent. The embodiments provide not only the acidic gas absorbent but also an acidic gas removal method and apparatus employing the acidic gas absorbent.Type: ApplicationFiled: March 5, 2021Publication date: March 17, 2022Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATIONInventors: Akiko SUZUKI, Yoshihiko NAKANO, Reiko YOSHIMURA, Asato KONDO, Kenji SANO, Toshihiro IMADA, Shinji MURAI, Mitsuru UDATSU
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Patent number: 11235277Abstract: A carbon dioxide capture system according to an embodiment includes a carbon dioxide capturer, a first washer, and a second washer. The first washer includes a spray configured to spray first cleaning liquid supplied under first pressure. The second washer includes a cleaning liquid diffuser configured to diffuse and drop second cleaning liquid supplied under second pressure lower than the first pressure.Type: GrantFiled: January 28, 2019Date of Patent: February 1, 2022Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATIONInventors: Koshito Fujita, Hideo Kitamura, Daigo Muraoka, Mitsuru Udatsu, Yusuke Handa, Tetsuya Kaseda, Yasuhiro Kato
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Patent number: 11135544Abstract: The embodiments provide an acidic gas absorbent, an acidic gas removal method using the absorbent, and an acidic gas removal apparatus using the absorbent. The absorbent absorbs an acidic gas in a large amount and is hardly diffused.Type: GrantFiled: March 8, 2019Date of Patent: October 5, 2021Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATIONInventors: Akiko Suzuki, Yoshihiko Nakano, Reiko Yoshimura, Toshihiro Imada, Takashi Kuboki, Kenji Sano, Shinji Murai, Mitsuru Udatsu
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Publication number: 20210291108Abstract: The embodiments provide an acidic gas absorbent kept from deterioration, an acidic gas removal method using the absorbent, and an acidic gas removal apparatus using the same. The acidic gas absorbent contains an amine compound and water, and further contains superfine bubble containing inert gas wherein an average diameter of said superfine bubble is 150 nm or less. The acidic gas removal method provided here employs that absorbent. The acidic gas removal apparatus is equipped with a unit for introducing the superfine bubbles into the absorbent.Type: ApplicationFiled: September 8, 2020Publication date: September 23, 2021Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATIONInventors: Akiko SUZUKI, Yoshihiko NAKANO, Reiko YOSHIMURA, Toshihiro IMADA, Takashi KUBOKI, Kenji SANO, Mitsuru UDATSU
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Patent number: 11123683Abstract: A carbon dioxide absorbent of an embodiment includes a heterocyclic amine expressed by Formula (1), and the heterocyclic amine having a pKa of any one amino group included in a heterocyclic ring in Formula (1) in a range of 7.0 or more to 8.6 or less and an organic solvent having a boiling point of 150° C. or more at 1 atm. A total mass of the heterocyclic amine and the organic solvent is 70 mass % or more to 100 mass % or less of the carbon dioxide absorbent. Each of R1 to R4 in Formula (1) is H, oxygen double-bonded with carbon of the heterocyclic ring, CH3, OH, or an alkyl chain optionally including a functional group. X1 in Formula (1) is H, CH3, CO, C(O)OC2H5, C(O)OC3H7, C(O)OCH(CH3)2, C(O)OC(CH3)3, C(O)OCH3, C(O)CH3, or C(O)C2H5.Type: GrantFiled: February 23, 2018Date of Patent: September 21, 2021Assignee: Kabushiki Kaisha ToshibaInventors: Akiko Suzuki, Asato Kondo, Takashi Kuboki, Shinji Murai, Mitsuru Udatsu, Toshihiro Imada, Yoshihiko Nakano, Reiko Yoshimura
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Patent number: 11090603Abstract: An acidic gas absorbent contains an amine compound of formula (1) and a cyclic amino compound of formula (2) or (3): where in the formulas, each R1 is independently a straight-chain hydroxyalkyl having a hydroxy at the terminal, R2 is a branched-chain secondary alkyl group, R3 and R4 are hydrogen, hydroxy, a hydroxyalkyl or aminoalkyl, provided that at least one of R3 and R4s is a hydroxyalkyl or aminoalkyl, each p is independently an integer of 2 to 4, each R5 is independently hydrogen, hydroxy, or a hydroxyalkyl or aminoalkyl, provided that at least one of R5s is a hydroxyalkyl or aminoalkyl, and q is an integer of 3 to 8.Type: GrantFiled: March 22, 2019Date of Patent: August 17, 2021Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATIONInventors: Shinji Murai, Yasuhiro Kato, Akiko Suzuki, Mitsuru Udatsu
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Publication number: 20210170331Abstract: According to embodiment, a carbon dioxide capturing system cools a regenerator discharge gas discharged from a regenerator 5 containing carbon dioxide by a cooling unit 8, and then sends the gas to a cleaner 9. The cleaner 9 receives condensed water generated from the regenerator discharge gas cooled by the cooler 9, and a gaseous cooled regenerator discharge gas, and cleans the cooled regenerator discharge gas by a cleaning liquid. The cleaner 9 has a first liquid reservoir 9b configured to store the condensed water, and a second liquid reservoir 9c configured to store the cleaning liquid having cleaned the cooled regenerator discharge gas.Type: ApplicationFiled: December 7, 2020Publication date: June 10, 2021Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATIONInventors: Mitsuru UDATSU, Yusuke HANDA, Hideo KITAMURA
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Patent number: 10981105Abstract: A carbon dioxide capturing system according to an embodiment is provided with a reboiler which heats an absorption liquid in a regeneration tower with a heated steam, and condenses the heated steam to generate a downstream side condensed water. The heated steam is supplied to the reboiler by an upstream side line. The downstream side condensed water is discharged from the reboiler by a downstream side line. A branched line branches from the upstream side line. The heated steam supplied to the branched line is cooled and condensed by an upstream side cooler, and an upstream side condensed water is generated. A physical quantity of an absorption liquid component in the upstream side condensed water and a physical quantity of an absorption liquid component in the downstream side condensed water are measured by a physical quantity measurement device.Type: GrantFiled: July 19, 2018Date of Patent: April 20, 2021Assignees: Kabushiki Kaisha Toshiba, Toshiba Energy Systems & Solutions CorporationInventors: Ryosuke Shibata, Hideo Kitamura, Kiyohiko Iwasa, Masatoshi Hodotsuka, Mitsuru Udatsu
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Publication number: 20210077948Abstract: In one embodiment, a carbon dioxide capturing system includes an absorber to absorb CO2 from first gas into lean liquid, and produce rich liquid that is the lean liquid absorbing the CO2 and second gas that is the first gas removing the CO2, and a regenerator to separate third gas including the CO2 from the rich liquid flowing from the absorber, and provide the lean liquid and the third gas. The system further includes a flowmeter to measure a flow rate of the third gas, a liquid level gauge to measure a liquid level of the lean liquid and/or the rich liquid, and a controller to regulate a quantity of heat energy supplied to the regenerator based on the flow rate of the third gas, and regulate a total amount of the lean liquid and the rich liquid in the system based on the liquid level.Type: ApplicationFiled: July 27, 2020Publication date: March 18, 2021Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATIONInventors: Mitsuru UDATSU, Noriko TAKADA, Yusuke HANDA, Hideo KITAMURA
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Publication number: 20210031136Abstract: A carbon dioxide capture system according to the embodiment includes: a carbon dioxide capturer configured to cause a carbon dioxide contained in a combustion exhaust gas into an absorbing liquid containing an amine; a first washer configured to wash the combustion exhaust gas from the carbon dioxide capturer with a mist of a first cleaning liquid sprayed by a spray to capture the amine contained in the combustion exhaust gas; and a cleaning liquid mist capturer configured to capture the mist of the first cleaning liquid contained in the combustion exhaust gas from the first washer. The first washer has a receiver arranged below the spray, and a washing-capturing space arranged between the spray and the receiver. In the washing-capturing space, the mist of the first cleaning liquid comes into gas-liquid contact with the combustion exhaust gas while freely dropping.Type: ApplicationFiled: July 24, 2020Publication date: February 4, 2021Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATIONInventors: Koshito FUJITA, Mitsuru UDATSU
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Patent number: 10864478Abstract: A carbon dioxide capture system includes a first capture system and a second capture system. The first capture system including a first absorber that causes carbon dioxide contained in a combustion exhaust gas to be absorbed in a first absorbing liquid. The second capture system causes carbon dioxide contained in a combustion exhaust gas to be absorbed in a second absorbing liquid. The second rich liquid releases carbon dioxide at a lower temperature than the first rich liquid.Type: GrantFiled: November 2, 2016Date of Patent: December 15, 2020Assignee: KABUSHIKI KAISHA TOSHIBAInventors: Koshito Fujita, Mitsuru Udatsu
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Publication number: 20200376428Abstract: Disclosed herein are acid gas absorbents that afford high acid gas (CO2) absorption amount per unit volume and high absorption speed and can prevent the absorbent. components from diffusing.Type: ApplicationFiled: August 20, 2020Publication date: December 3, 2020Applicants: KABUSHIKI KASSHA TOSHIBA, TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATIONInventors: Shinji MURAI, Yukishige MAEZAWA, Tetsuya KASEDA, Takehiko MURAMATSU, Satoshi SAITO, Mitsuru UDATSU, Daigo MURAOKA, Masatoshi HGDOTSUKA