公开(公告)号：US20250084541A1

公开(公告)日：2025-03-13

申请号：US18580531

申请日：2022-07-20

Applicant: CHIYODA CORPORATION ,  OSAKA UNIVERSITY

Inventor： Jun MATSUMOTO ,  Dai TAKEDA ,  Shinya HASHIMOTO ,  Ittetsu OBA ,  Shuji NAKANISHI ,  Kazuhide KAMIYA

IPC: C25B3/26 ,  B01D53/26 ,  B01D53/32 ,  B01D53/62 ,  C25B1/23 ,  C25B3/03 ,  C25B9/19 ,  C25B11/032 ,  C25B13/02 ,  C25B15/023 ,  C25B15/08

Abstract: 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：US20250102165A1

公开(公告)日：2025-03-27

申请号：US18858989

申请日：2023-03-07

Applicant: The University of Tokyo ,  CHIYODA CORPORATION ,  SHIMIZU CORPORATION

Inventor： Hiroji EBE ,  Masakazu SUGIYAMA ,  Jun MATSUMOTO ,  Dai TAKEDA ,  Ittetsu OBA ,  Shinya HASHIMOTO ,  Yukinori FUSE ,  Mitsuhiro SUMIKURA ,  Yoshito ARAI

IPC: F24F8/60 ,  C25B1/02 ,  C25B3/01 ,  C25B3/26 ,  C25B15/02 ,  C25B15/08 ,  F24F8/10

Abstract: An air conditioning system (1) includes a carbon dioxide separation device (20) configured to separate some or all of carbon dioxide from air that contains carbon dioxide, an electrolytic reduction device (30) configured to generate a hydrocarbon and oxygen using the separated carbon dioxide as a raw material, and an oxygen supply amount control device (40) configured to supply some or all of the oxygen generated by the electrolytic reduction device (30) to a space to be processed (10).

公开(公告)号：US20240158321A1

公开(公告)日：2024-05-16

申请号：US18548980

申请日：2022-03-01

Applicant: CHIYODA CORPORATION ,  UBE CORPORATION

Inventor： Mitsunori SHIMURA ,  Dai TAKEDA ,  Jun MATSUMOTO ,  Atsushi YAMADA ,  Yuki NAGAO

IPC: C07C5/48 ,  C25B1/04 ,  C25B3/03 ,  C25B3/26 ,  C25B15/029 ,  C25B15/08

CPC classification number: C07C5/48 ,  C25B1/04 ,  C25B3/03 ,  C25B3/26 ,  C25B15/029 ,  C25B15/081

Abstract: [Task] Provided is a manufacturing method of butadiene that can reduce carbon dioxide emissions.
[Solution] A manufacturing method of butadiene includes an electrolytic reduction process 2 that produces ethylene and oxygen from carbon dioxide and water as a raw material by electrolytic reduction, a butene producing process 3 that produces butene by dimerizing the ethylene produced in the electrolytic reduction process, a mixing process 4 that prepares a mixed gas by mixing the oxygen produced in the electrolytic reduction process, the butene produced in the butene producing process, and air, and a butadiene producing process 5 that produces butadiene by heating the mixed gas and oxidatively dehydrogenating the butene, wherein carbon dioxide by-produced in the butadiene producing process is used as a portion of the raw material in the electrolytic reduction process.

公开(公告)号：US20240360577A1

公开(公告)日：2024-10-31

申请号：US18770479

申请日：2024-07-11

Applicant: FURUKAWA ELECTRIC CO., LTD. ,  THE UNIVERSITY OF TOKYO ,  CHIYODA CORPORATION

Inventor： Takahiro YAMAMOTO ,  Yu MIMURA ,  Kiyoshi YAMAMOTO ,  Masakazu SUGIYAMA ,  Tsutomu MINEGISHI ,  Jun MATSUMOTO ,  Dai TAKEDA

IPC: C25B11/091 ,  C25B3/03 ,  C25B3/26 ,  C25B11/032 ,  C25D3/22 ,  C25D3/38 ,  C25D5/48 ,  C25D9/04

CPC classification number: C25B11/091 ,  C25B3/03 ,  C25B3/26 ,  C25B11/032 ,  C25D3/22 ,  C25D3/38 ,  C25D5/48 ,  C25D9/04

Abstract: The present disclosure 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：US20220356588A1

公开(公告)日：2022-11-10

申请号：US17815149

申请日：2022-07-26

Applicant: RIKEN ,  CHIYODA CORPORATION ,  FURUKAWA ELECTRIC CO., LTD.

Inventor： Katsushi FUJII ,  Kayo KOIKE ,  Ryuhei NAKAMURA ,  Satoshi WADA ,  Dai TAKEDA ,  Jun MATSUMOTO ,  Eri TORIKAI ,  Takahiro YAMAMOTO ,  Yu MIMURA ,  Kiyoshi YAMAMOTO ,  Shinsuke NISHIDA

IPC: C25B3/26 ,  C25B3/03 ,  C25B3/07 ,  C25B11/093

Abstract: The present disclosure 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.

公开(公告)号：US20210002775A1

公开(公告)日：2021-01-07

申请号：US16643858

申请日：2018-06-27

Applicant: Chiyoda Corporation

Inventor： Jun MATSUMOTO ,  Dai TAKEDA

IPC: C25B1/10 ,  C25B15/02 ,  C25B15/08 ,  C25B9/08 ,  B01D53/18 ,  B01D53/14

Abstract: A synthesis gas production system for producing CO and H2 by electrolyzing an aqueous solution containing CO2 includes: an electrolysis device including an anode chamber and a cathode chamber separated by a separator membrane; a cathode-side circulation line connected to the cathode chamber to circulate a cathode solution containing CO2; a catalyst supply device provided in the cathode-side circulation line to supply a CO production catalyst to the cathode solution; and a gas composition detection device configured to measure a ratio between CO and H2 in a production gas produced in the cathode chamber. At least one of control of a supply amount of the CO production catalyst by the catalyst supply device and control of a voltage applied between the anode and the cathode by the electrolysis device is performed to make a ratio of H2 to CO in the production gas be within a predetermined target range.

公开(公告)号：US20230193265A1

公开(公告)日：2023-06-22

申请号：US17925225

申请日：2021-05-12

Applicant: OSAKA UNIVERSITY

Inventor： Kazuhiko NAKATANI ,  Jun MATSUMOTO ,  Tatsumasa OKAMOTO ,  Chikara DOHNO ,  Asako SEIKE ,  Masayuki NAKAMORI

IPC: C12N15/113 ,  A61K31/496 ,  C07D401/04 ,  A61P21/00

CPC classification number: C12N15/113 ,  A61K31/496 ,  C07D401/04 ,  A61P21/00

Abstract: Provided is a novel agent capable of binding to a CUG repeat sequence. The agent comprises a compound A having a binding response of 10 resonance units (RU) or more at 25 nM to a (CUG)9 RNA immobilized at 401 RU as determined by surface plasmon resonance.