Strategic Study of Chinese Academy of Engineering >
Comprehensive Utilization of Seawater Resources Based on Ocean Energy
Received date: 12 Oct 2019
Published date: 23 Dec 2019
This study combines the tidal current power generation system with seawater desalination and hydrogen production by concentrated seawater electrolysis, and proposes a comprehensive utilization mode of marine energy and seawater resources. Tidal turbines can provide sufficient power for islands or offshore facilities, while seawater desalination can supply adequate freshwater to islands. However, concentrated seawater, a byproduct of seawater desalination, is usually treated as waste and discharged back to the ocean. It thus becomes a pollution source and meanwhile causes a waste of chemical resources enriched in it, such as hydrogen, chlorine, and sodium. Therefore, this paper further studies the technologies for producing hydrogen and caustic soda by concentrated seawater electrolysis using the tidal current power generation system. By this means, marine energy resources are exploited for marine use, the seawater resource is properly recycled, and the establishment of offshore hydrogen supply stations may become possible.
Wei Li , Yijia Yang , Yajing Gu , Hongwei Liu , Yonggang Lin , Nanqiang Zhang . Comprehensive Utilization of Seawater Resources Based on Ocean Energy[J]. Strategic Study of Chinese Academy of Engineering, 2019 , 21(6) : 33 -38 . DOI: 10.15302/J-SSCAE-2019.06.006
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