Title:
HYDROGEN PRODUCTION SYSTEM AND HYDROGEN PRODUCTION METHOD
Document Type and Number:
WIPO Patent Application WO/2022/239706
Kind Code:
A1
Abstract:
A hydrogen production system (1) is provided with at least one first permeator (10), a circulation flow path (20) and an alkaline water electrolyzer (30). The at least one first permeator (10) includes a semipermeable membrane (11) which partitions between a first chamber (12) into which water of interest is supplied and a second chamber (13) into which an alkaline aqueous solution having a higher osmotic pressure than that of the water of interest is supplied and makes water in the water of interest permeate from the first chamber (12) to the second chamber (13). The circulation flow path (20) is connected to the second chamber (13) to circulate the alkaline aqueous solution. The alkaline water electrolyzer (30) is arranged on the circulation flow path (20), and electrolyzes water in the alkaline aqueous solution supplied from the second chamber (13) to produce hydrogen.
Inventors:
OHARA HIROAKI (JP)
Application Number:
PCT/JP2022/019559
Publication Date:
November 17, 2022
Filing Date:
May 06, 2022
Export Citation:
Assignee:
IHI CORP (JP)
International Classes:
C25B15/08; B01D61/00; C01B3/02; C25B1/04; C25B9/00
Domestic Patent References:
| WO2015156404A1 | 2015-10-15 | |||
| WO2021130261A1 | 2021-07-01 | |||
| WO2019181662A1 | 2019-09-26 |
Foreign References:
| JP2017008341A | 2017-01-12 | |||
| DE102017219052A1 | 2019-04-25 | |||
| JP2021081018A | 2021-05-27 |
Attorney, Agent or Firm:
MIYOSHI Hidekazu et al. (JP)
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