(19)
(11) EP 4 527 985 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
30.04.2025 Bulletin 2025/18

(43) Date of publication A2:
26.03.2025 Bulletin 2025/13

(21) Application number: 24162005.3

(22) Date of filing: 07.03.2024
(51) International Patent Classification (IPC): 
C25B 1/23(2021.01)
C25B 9/73(2021.01)
C25B 15/02(2021.01)
C25B 15/08(2006.01)
 C25B 3/26(2021.01)
C25B 9/77(2021.01)
C25B 15/021(2021.01)
(52) Cooperative Patent Classification (CPC):
C25B 1/23; C25B 3/26; C25B 9/73; C25B 9/77; C25B 15/02; C25B 15/021; C25B 15/081; C25B 15/085
(84) Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC ME MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated Extension States:
BA
Designated Validation States:
GE KH MA MD TN

(30) Priority: 20.09.2023 JP 2023152124

(71) Applicant: Kabushiki Kaisha Toshiba
Tokyo 105-0023 (JP)

(72) Inventors:
  • FUJIWARA, Naoya
    Minato-ku, Tokyo, 105-0023 (JP)
  • KITAGAWA, Ryota
    Minato-ku, Tokyo, 105-0023 (JP)
  • KOFUJI, Yusuke
    Minato-ku, Tokyo, 105-0023 (JP)
  • MIKOSHIBA, Satoshi
    Minato-ku, Tokyo, 105-0023 (JP)
  • KUDO, Yuki
    Minato-ku, Tokyo, 105-0023 (JP)

(74) Representative: Hoffmann Eitle 
Patent- und Rechtsanwälte PartmbB Arabellastraße 30
81925 München
81925 München (DE)

   


(54) ELECTROCHEMICAL REACTION DEVICE AND METHOD OF OPERATING ELECTROCHEMICAL REACTION DEVICE


(57) An electrochemical reaction device includes: an electrolytic unit that includes a cathode, an anode, a diaphragm, a cathode and an anode chamber; a first flow path through which a first fluid containing a reducible material flows, and; a second flow path through which a second fluid containing an oxidizable material flows; a third flow path through which a third fluid containing a reduction product flows; a fourth flow path through which a fourth fluid containing an oxidation product flows; a humidifier in the middle of the first flow path to humidify the first fluid; and a condenser in the middle of the first flow path so as to follow the humidifier and to treat the humidified first fluid and thus condenses a part of water vapor in the humidified first fluid to produce a condensed water, and to control a ratio of the condensed water in the humidified first fluid.







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