Seawater hydrogen production is one of the main methods of electrolytic hydrogen production, which utilizes seawater as the raw material source and combines offshore wind power technology to achieve hydrogen extraction. Compared to traditional hydrogen production techniques, seawater hydrogen production offers advantages such as high hydrogen yield, environmental friendliness, and low energy consumption. It has the potential for large-scale production in the future. Based on different technical principles, seawater hydrogen production can be divided into direct seawater hydrogen production and indirect seawater hydrogen production.
Direct seawater hydrogen production generally refers to on-site electrolytic hydrogen production without the need for desalination. It directly utilizes the electrolysis of seawater to extract hydrogen, providing advantages such as low operating costs and convenience. However, this technology is currently in the research and development stage and has not achieved large-scale application. Many research institutions, such as the University of Houston in the United States, the French National Center for Scientific Research, and Beijing University of Chemical Technology, have made significant progress in the research of this technology. Indirect seawater hydrogen production involves desalinating seawater first and then using methods such as photocatalysis and electrolysis to extract hydrogen. This technology has already achieved commercial applications.
Seawater hydrogen production is mainly used for hydrogen preparation and has broad application prospects in areas such as aerospace and fuel cells. In the aerospace industry, hydrogen can be used as a fuel in aircraft and spacecraft propulsion systems. In the fuel cell field, hydrogen is used for hydrogen fuel cell production, which serves as the end product for ships, cars, and other applications.
As one of the main methods of electrolytic hydrogen production, seawater hydrogen production has advantages such as high hydrogen yield and environmental friendliness, making it a promising industry. In recent years, Chinese enterprises and research institutions have increased their investment in seawater hydrogen production research, further accelerating the industry's development. It is expected that in the foreseeable future, driven by market prospects, the number of seawater hydrogen production companies in China will continue to grow.
