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公开(公告)号：EP4098775A1
公开(公告)日：2022-12-07
申请号：EP21747112.7
申请日：2021-01-25
Applicant: RIKEN , Chiyoda Corporation , FURUKAWA ELECTRIC CO., LTD.
Inventor： FUJII, Katsushi , KOIKE, Kayo , NAKAMURA, Ryuhei , WADA, Satoshi , TAKEDA, Dai , MATSUMOTO, Jun , TORIKAI, Eri , YAMAMOTO, Takahiro , MIMURA, Yu , YAMAMOTO, Kiyoshi , NISHIDA, Shinsuke
Abstract: The present invention provides a cathode electrode that can stably sustain a catalytic reaction producing an olefinic hydrocarbon such as ethylene and an alcohol such as ethanol by a reduction reaction of carbon dioxide over a long term.
A cathode electrode that electrically reduces carbon dioxide, including cuprous oxide, copper, and at least one additional metal element selected from the group consisting of silver, gold, zinc, and cadmium.-
2.发明公开
公开(公告)号：EP2260940A1
公开(公告)日：2010-12-15
申请号：EP08765411.7
申请日：2008-06-04
Applicant: CHIYODA CORPORATION
Inventor： KAWAMURA, Kazushige , TAKEDA, Dai , AWAI, Eiji
CPC classification number: B01D53/8609 , B01D2255/702 , B01D2257/302 , B01D2257/602 , B01J21/18 , B01J23/04 , B01J27/08 , B01J37/0201 , C01B17/78 , F23J2215/20 , F23J2215/60 , F23J2219/10 , F23J2219/30 , F23J2219/60
Abstract: A carbon-based catalyst for flue gas desulfurization is brought into contact with a flue gas containing at least SO 2 gas, oxygen and water vapor so that the SO 2 gas can react with the oxygen and the water vapor to form sulfuric acid which is to be recovered. On a surface of the carbon-based catalyst, iodine, bromine or a compound thereof is added, ion exchanged or supported and a water-repellent treatment is applied. The carbon-based catalyst can also be used as a mercury adsorbent for flue gas treatment for adsorbing and removing metallic mercury from a flue gas containing metallic mercury, SO 2 gas, oxygen and water vapor.
Abstract translation: 排烟脱硫甲碳系催化剂所接触与烟道气含有至少SO 2个气体，氧气和水蒸汽，以便做的SO 2种气体可与氧和水蒸汽反应，以形成硫酸所有这是为了 恢复。 在碳系催化剂，碘，溴或它们被添加的化合物的表面，离子交换或负载和一个防水处理被应用。 因此，该碳系催化剂，可以使用作为汞吸附剂烟气处理用于吸附和从含有金属汞，二氧化硫气体，氧气和水蒸汽的烟道气中除去金属汞。
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公开(公告)号：EP4375398A1
公开(公告)日：2024-05-29
申请号：EP22845962.4
申请日：2022-07-20
Applicant: Chiyoda Corporation , OSAKA UNIVERSITY
Inventor： MATSUMOTO, Jun , TAKEDA, Dai , HASHIMOTO, Shinya , OBA, Ittetsu , NAKANISHI, Shuji , KAMIYA, Kazuhide
IPC: C25B3/26 , B01D53/26 , B01D53/32 , C07C7/148 , C07C9/04 , C07C9/06 , C25B1/02 , C25B1/23 , C25B15/023 , C25B15/08
CPC classification number: B01D53/26 , B01D53/32 , C07C7/148 , C07C9/04 , C07C9/06 , C25B1/23 , C25B1/02 , C25B3/26 , C25B15/023 , C25B15/08
Abstract: TASK
To improve energy efficiency in a carbon dioxide recovery system.
SOLUTION
The carbon dioxide recovery system (1) comprises an electrolytic reduction device (2) that generates a producer gas by reducing carbon dioxide, and a carbon dioxide separation device (3) that separates the carbon dioxide from the processed gas. The carbon dioxide separation device is provided with a first gas diffusion electrode (51), a second gas diffusion electrode (52), a liquid chamber (53) formed between the first gas diffusion electrode and the second gas diffusion electrode (52), and is configured to be supplied with an electrolytic liquid containing a compound that adsorbs and desorbs protons in an oxidation-reduction reaction, a first chamber (54) separated from the liquid chamber by the first gas diffusion electrode and configured to be supplied with the producer gas, and a second chamber (55) separated from the liquid chamber by the second gas diffusion electrode and through which the carbon dioxide separated from the producer gas flow. The electrolytic reduction device uses the carbon dioxide separated from the processed gas in the carbon dioxide separation device as a part of an input material thereof.-
公开(公告)号：EP2135664B1
公开(公告)日：2014-03-05
申请号：EP08721846.7
申请日：2008-03-05
Applicant: CHIYODA CORPORATION
Inventor： KAWAMURA, Kazushige , TAKEDA, Dai , AWAI, Eiji , KUMAGAI, Akira
CPC classification number: B01D53/1456 , B01D53/64 , B01D53/78 , B01D2251/106 , B01D2257/108 , B01D2257/302 , B01D2257/602
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Patent Agency Ranking5.发明公开METHOD FOR TREATING GAS THAT CONTAINS ZERO-VALENT MERCURY, AND MERCURY SEPARATION METHOD 审中-公开VERFAHREN ZUR BEHANDLUNG VON GAS MIT NULLWERTIGEM QUECKSILBER UND QUECKSILBERTRENNUNGSVERFAHREN
公开(公告)号：EP3147023A1
公开(公告)日：2017-03-29
申请号：EP15795643.4
申请日：2015-05-18
Applicant: Chiyoda Corporation
Inventor： TAKEDA, Dai , AWAI, Eiji , MATSUMOTO, Jun , UEMURA, Masataka , MARUKAWA, Hironobu
CPC classification number: B01D53/64 , B01D53/78 , B01D53/96 , B01D2251/108 , B01D2251/30 , B01D2257/602 , C01G13/00 , F23J15/04 , F23J2215/60
Abstract: The invention provides a treatment process of a gas containing zero-valent mercury and a mercury separation system, by which the amount of an iodine compound used can be reduced when the zero-valent mercury is separated from the gas containing the zero-valent mercury by using the iodine compound. The treatment process of the gas containing the zero-valent mercury has a mercury oxidation step of oxidizing the zero-valent mercury contained in the gas containing the zero-valent mercury with a first liquid phase containing an alkali metal iodide to take the zero-valent mercury into the first liquid phase, thereby obtaining a second liquid phase containing a divalent mercury ion and an iodide ion; a mercury separation step of separating the divalent mercury ion as mercury sulfide by adjusting the pH of the second liquid phase obtained in the mercury oxidation step with a pH adjustor and adding an alkali metal sulfide; and a first circulation step of circulating a third liquid phase which is obtained by separating the mercury sulfide in the mercury separation step and contains an alkali metal ion and the iodide ion to use the third liquid phase as the first liquid phase in the mercury oxidation step.
Abstract translation: 本发明提供一种含有零价汞和汞分离系统的气体的处理方法，通过该处理方法，当将零价汞从含有零价汞的气体中分离出来时，可以减少使用的碘化合物的量， 使用碘化合物。 含有零价汞的气体的处理工艺具有通过含有碱金属碘化物的第一液相将含有零价汞的气体中所含的零价汞氧化成水银氧化步骤以使零价 汞进入第一液相，从而获得含有二价汞离子和碘离子的第二液相; 通过用pH调节剂调节在汞氧化步骤中获得的第二液相的pH并加入碱金属硫化物，分离二价汞离子作为硫化汞的汞分离步骤; 以及第一循环步骤，其通过在所述汞分离步骤中分离所述硫化汞而含有碱金属离子和所述碘化物离子而使所述第三液相循环，以在所述汞氧化步骤中使用所述第三液相作为所述第一液相 。
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公开(公告)号：EP4464822A1
公开(公告)日：2024-11-20
申请号：EP23740278.9
申请日：2023-01-12
Inventor： YAMAMOTO, Takahiro , MIMURA, Yu , YAMAMOTO, Kiyoshi , SUGIYAMA, Masakazu , MINEGISHI, Tsutomu , MATSUMOTO, Jun , TAKEDA, Dai
IPC: C25B11/091 , C25B1/23 , C25B3/03 , C25B3/07 , C25B3/26 , C25B9/00 , C25B11/031 , C25B11/053 , C25B11/065 , C25B11/075 , C25B11/081 , C25B11/093
Abstract: The present invention provides a cathode electrode in which selectivity of hydrogen decreases and selectivity of a carbon dioxide reduction product increases in a catalytic reaction producing carbon monoxide, an olefinic hydrocarbon such as ethylene, and an alcohol such as ethanol by a reduction reaction of carbon dioxide.
A cathode electrode that electrically reduces carbon dioxide, including: a first layer containing cuprous oxide, copper, and at least one additional metal element selected from the group consisting of silver, gold, zinc, cadmium, and tin; and a second layer formed on the first layer and containing a constituent element composed of at least one metal element selected from the group consisting of copper, silver, gold, zinc, cadmium, and tin.-
公开(公告)号：EP2260940B8
公开(公告)日：2019-10-09
申请号：EP08765411.7
申请日：2008-06-04
Applicant: CHIYODA CORPORATION
Inventor： KAWAMURA, Kazushige , TAKEDA, Dai , AWAI, Eiji
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公开(公告)号：EP2260940B1
公开(公告)日：2019-08-14
申请号：EP08765411.7
申请日：2008-06-04
Applicant: CHIYODA CORPORATION
Inventor： KAWAMURA, Kazushige , TAKEDA, Dai , AWAI, Eiji
Abstract: A carbon-based catalyst for flue gas desulfurization is brought into contact with a flue gas containing at least SO 2 gas, oxygen and water vapor so that the SO 2 gas can react with the oxygen and the water vapor to form sulfuric acid which is to be recovered. On a surface of the carbon-based catalyst, iodine, bromine or a compound thereof is added, ion exchanged or supported and a water-repellent treatment is applied. The carbon-based catalyst can also be used as a mercury adsorbent for flue gas treatment for adsorbing and removing metallic mercury from a flue gas containing metallic mercury, SO 2 gas, oxygen and water vapor.
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公开(公告)号：EP2135664A1
公开(公告)日：2009-12-23
申请号：EP08721846.7
申请日：2008-03-05
Applicant: CHIYODA CORPORATION
Inventor： KAWAMURA, Kazushige , TAKEDA, Dai , AWAI, Eiji , KUMAGAI, Akira
CPC classification number: B01D53/1456 , B01D53/64 , B01D53/78 , B01D2251/106 , B01D2257/108 , B01D2257/302 , B01D2257/602
Abstract: An exhaust gas treating method removes sulfur dioxide from exhaust gas containing at least sulfur dioxide and mercury by bringing the exhaust gas into contact with absorption liquid. Persulfate is added into the absorption liquid or alternatively, iodine gas is added to the exhaust gas before the exhaust gas is brought into contact with the absorption liquid. A high removal rate for both sulfur dioxide and mercury is stably maintained if the load of power generation and the composition of exhaust gas fluctuate.
Abstract translation: 排气处理方法通过使废气与吸收液体接触而从至少含有二氧化硫和汞的排气中除去二氧化硫。 将过硫酸盐加入到吸收液体中，或者在废气与吸收液体接触之前，将碘气加入废气中。 如果发电负荷和废气组成波动，二氧化硫和汞的去除率都很高。
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