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公开(公告)号：US12070719B2
公开(公告)日：2024-08-27
申请号：US17695157
申请日：2022-03-15
发明人： Daigo Muraoka , Koshito Fujita , Shinji Murai , Hayato Morigaki , Osamu Shibasaki , Yasuhiro Kato , Satoshi Saito , Takehiko Muramatsu , Ryosuke Shibata , Yusuke Handa
CPC分类号： B01D53/1475 , B01D53/1425 , B01D53/30 , B01D53/346 , B01D53/46 , B01D53/76 , B01D53/81 , B01D53/8671 , B01D2252/10 , B01D2252/204 , B01D2252/30 , B01D2257/104 , B01D2257/504
摘要： According to one embodiment, a gas processing equipment includes an oxygen remover 2 that removes oxygen contained in exhaust gas G, and a gas processing device 3 that processes pretreated exhaust gas G (P), from which the oxygen has been removed by the oxygen remover 2, with a carbon dioxide absorbent solvent S as a treatment agent.
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公开(公告)号：US11090603B2
公开(公告)日：2021-08-17
申请号：US16361489
申请日：2019-03-22
发明人： Shinji Murai , Yasuhiro Kato , Akiko Suzuki , Mitsuru Udatsu
IPC分类号： B01D53/14
摘要： 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.
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3.发明授权公开(公告)号：US10046269B2
公开(公告)日：2018-08-14
申请号：US15089915
申请日：2016-04-04
发明人： Shinji Murai , Yasuhiro Kato , Takehiko Muramatsu , Satoshi Saito , Daigo Muraoka , Yukishige Maezawa
IPC分类号： B01D53/14
摘要： There are provided an acidic gas absorbing agent that is large in recovery amount of an acidic gas. The acidic gas absorbing agent comprising an amine compound represented by general formula (1), and an acidic gas removing method and an acidic gas removing apparatus using the absorbing agent: wherein R1 represents a cycloalkyl group having 3 to 6 carbon atoms; R2 represents an alkyl group having 1 to 3 carbon atoms or a hydrogen atom; R3 and R4 each independently represent an alkyl group having 1 to 3 carbon atoms or a hydrogen atom; and R5 represents an alkyl group having 1 to 3 carbon atoms.
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公开(公告)号：US11135544B2
公开(公告)日：2021-10-05
申请号：US16297111
申请日：2019-03-08
发明人： Akiko Suzuki , Yoshihiko Nakano , Reiko Yoshimura , Toshihiro Imada , Takashi Kuboki , Kenji Sano , Shinji Murai , Mitsuru Udatsu
IPC分类号： C07D233/04 , C07D233/20 , C07D233/22 , C07D233/24 , B01D53/14 , B01D53/18 , B01D53/78 , B01D53/62
摘要： 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. The acidic gas absorbent according to the embodiment comprises an amine compound represented by the following formula (1):
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公开(公告)号：US09901862B2
公开(公告)日：2018-02-27
申请号：US14273035
申请日：2014-05-08
发明人： Yasuhiro Kato , Shinji Murai , Takehiko Muramatsu , Satoshi Saito
CPC分类号： B01D53/1475 , B01D53/1425 , B01D2252/20436 , B01D2252/20447 , B01D2252/20457 , B01D2252/20484 , B01D2258/0283 , Y02A50/2342 , Y02C10/06
摘要： A carbon dioxide recovery system includes an absorption tower in which carbon dioxide is absorbed into an absorbing solution then the absorbing solution is output to a regeneration tower in which carbon dioxide is released from the absorbing solution. The regeneration tower outputs the absorbing solution from which carbon dioxide has been released and an exhaust gas included released carbon dioxide and water vapor. In a condensing section the exhaust gas is separated into dioxide gas stream and a condensed water stream. In a mixing section the condensed water is mixed with an amine to a replenishment amine aqueous solution in which the amine is dissolved in the condensed water. In a replenishment section the absorbing solution is mixed with the replenishment amine aqueous solution.
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公开(公告)号：US09724642B2
公开(公告)日：2017-08-08
申请号：US14555787
申请日：2014-11-28
发明人： Shinji Murai , Yukishige Maezawa , Yasuhiro Kato , Takehiko Muramatsu , Masatoshi Hodotsuka , Satoshi Saito
IPC分类号： C07C217/28 , C07C217/08 , C07C217/52 , C07C215/42 , B01D53/62 , B01D53/14
CPC分类号： B01D53/62 , B01D53/1475 , B01D53/1493 , B01D2252/2023 , B01D2252/20426 , B01D2252/20484 , B01D2252/502 , B01D2252/602 , B01D2252/606 , B01D2252/608 , B01D2257/304 , B01D2257/504 , B01D2258/0283 , C07C217/08 , Y02C10/06
摘要： An acid gas absorbent includes at least one kind of secondary amine compound represented by formula (1): where R1 is a cyclopentyl group or a cyclohexyl group which may be substituted by a substituted or non-substituted alkyl group having 1 to 3 carbon atoms, R2 and R3 each indicate an alkylene group having 2 to 4 carbon atoms, and R2 and R3 may each be the same or different, and be a straight chain or have a side chain.
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公开(公告)号：US09181174B2
公开(公告)日：2015-11-10
申请号：US14219419
申请日：2014-03-19
发明人： Shinji Murai , Takehiko Muramatsu , Daigo Muraoka , Satoshi Saito
IPC分类号： C07C213/10 , B01D53/14
CPC分类号： C07C213/10 , B01D53/1425 , B01D53/1456 , B01D53/1493 , B01D2252/20431 , B01D2252/20478 , Y02C10/06 , C07C215/12
摘要： A method for isolating an amino alcohol simply from an amino alcohol aqueous solution containing a heterocyclic amine compound is provided. The method is a method for isolating a tertiary amino alcohol from a tertiary amino alcohol aqueous solution containing a heterocyclic amine compound, and for generating an enamine by adding a ketone to the tertiary amino alcohol aqueous solution, isolating the enamine from the tertiary amino alcohol aqueous solution, and isolating the tertiary amino alcohol from a residual liquid obtained by isolating the enamine.
摘要翻译： 提供了简单地从含有杂环胺化合物的氨基醇水溶液中分离氨基醇的方法。 该方法是从含有杂环胺化合物的叔氨基醇水溶液中分离叔氨基醇的方法，通过向叔氨基醇水溶液中加入酮产生烯胺，从叔氨基醇水溶液中分离出烯胺 溶液，并从通过分离烯胺获得的残余液体中分离叔氨基醇。
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公开(公告)号：US11123683B2
公开(公告)日：2021-09-21
申请号：US15903613
申请日：2018-02-23
发明人： Akiko Suzuki , Asato Kondo , Takashi Kuboki , Shinji Murai , Mitsuru Udatsu , Toshihiro Imada , Yoshihiko Nakano , Reiko Yoshimura
IPC分类号： C07D241/04 , B01D53/14 , B01D53/96
摘要： 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.
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公开(公告)号：US10850227B2
公开(公告)日：2020-12-01
申请号：US16201025
申请日：2018-11-27
发明人： Shinji Murai , Yukishige Maezawa , Tetsuya Kaseda , Takehiko Muramatsu , Satoshi Saito , Mitsuru Udatsu , Daigo Muraoka , Masatoshi Hodotsuka
摘要： 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. Also disclosed herein is a method and device for removing an acid gas, in which the energy required for separating the acid gas and regenerating the absorbent is reduced, are provided.
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公开(公告)号：US20190160422A1
公开(公告)日：2019-05-30
申请号：US16201025
申请日：2018-11-27
发明人： Shinji Murai , Yukishige Maezawa , Tetsuya Kaseda , Takehiko Muramatsu , Satoshi Saito , Mitsuru Udatsu , Daigo Muraoka , Masatoshi Hodotsuka
摘要： 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. Also disclosed herein is a method and device for removing an acid gas, in which the energy required for separating the acid gas and regenerating the absorbent is reduced, are provided.
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