Title:
DEVICE AND METHOD FOR PREPARING HIGH-PURITY HYDROGEN AND/OR OXYGEN BY ELECTROLYZING WATER
Document Type and Number:
WIPO Patent Application WO/2021/129566
Kind Code:
A1
Abstract:
Involved is a device for preparing high-purity hydrogen and/or oxygen by electrolyzing water, comprising an electrolyzer and a degasser for degassing desalted water. The degasser is located at the upstream of the electrolyzer. After desalted water is heated and degassed in the degasser, the content of gaseous impurities, particularly argon, can be reduced to several ppb (weight ratio). The hydrogen and oxygen generated after the desalted and degassed water is electrolyzed in the electrolyzer also contain an extremely small amount of argon, so that the requirements in semiconductor industry are met. Also involved is a method for preparing high-purity hydrogen and/or oxygen by using the device.
Inventors:
BRIGLIA ALAIN (CN)
DAY ERIC (CN)
WAKIM MICHAEL (CN)
DAY ERIC (CN)
WAKIM MICHAEL (CN)
Application Number:
PCT/CN2020/137965
Publication Date:
July 01, 2021
Filing Date:
December 21, 2020
Export Citation:
Assignee:
AIR LIQUIDE (FR)
BRIGLIA ALAIN (CN)
BRIGLIA ALAIN (CN)
International Classes:
C25B1/04; C25B9/00; C25B15/00; C25B15/08
Foreign References:
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| CN204589316U | 2015-08-26 | |||
| US5484512A | 1996-01-16 |
Other References:
WU QIAOWEI: "Operation and Maintenance of Hydrogen Production Plant by Water Electrolysis", POLYESTER INDUSTRY, CHINA, vol. 27, no. 4, 1 July 2014 (2014-07-01), China, pages 44 - 47, XP055824131, ISSN: 1008-8261, DOI: 10.3969 /j.issn.1008-8261.2014.04.014
JI MA: "Application of water electrolysis devices for hydrogen generation in chlor － alkali production", CHLOR-ALKALI INDUSTRY, vol. 51, no. 9, 1 September 2015 (2015-09-01), pages 21 - 24, XP055824137, ISSN: 1008-133X
JI MA: "Application of water electrolysis devices for hydrogen generation in chlor － alkali production", CHLOR-ALKALI INDUSTRY, vol. 51, no. 9, 1 September 2015 (2015-09-01), pages 21 - 24, XP055824137, ISSN: 1008-133X
Attorney, Agent or Firm:
SUNSHINEIP INTELLECTUAL PROPERTY LAW FIRM (CN)
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