WANG Zhihua;ZENG Junjie;HE Yong;LI Mingyang;WANG Xiaoding;

• 1:State Key Laboratory of Clean Energy Utilization
• 2:Zhejiang University
• 3:Dongfang Electric Co.
• 4:Ltd.

Abstract：

With the increasing shortage of fossil energy and serious environmental pollution, it is urgent to seek efficient, clean and renewable energy. Hydrogen energy, as a new password of modern energy industry system, has attracted extensive attention in recent years due to its advantages of cleanliness, renewability, storage and wide range of application. At present, there are many ways to produce hydrogen, but the large-scale, efficient, low-cost and green ways are the basis of the future hydrogen energy economy. Among them, thermochemical sulfur-iodine cycle(iodine-sulfur cycle) is recognized as one of the most promising hydrogen production methods due to its above advantages in water splitting hydrogen production. The basic research on the thermochemical sulfur-iodine cycle water splitting hydrogen production was reviewed from three aspects: Bunsen reaction, H_2SO_4 decomposition and HI decomposition. Secondly, the sulfur-iodine cycle systems that had been established in various countries were summarized, and the latest progress in the nuclear energy-coupled sulfur-iodine cycle hydrogen production process was introduced. Finally, the current nuclear energy coupling sulfur-iodine hydrogen production was discussed and analyzed from the aspects of economy, environmental protection and safety, in order to provide new ideas for future research and development. It is very important to find a new method for efficient separation of reactants in the Bunsen reaction part. The main research for the decomposition of H_2SO_4 and HI at this stage is still focused on the development of stable, efficient and low-cost catalysts. Thermochemical sulfur-iodine cycle water splitting hydrogen production technology has made great progress after decades of research. The harsh high temperature and high corrosion environment and complex coupling process are the main reasons that limit its scale and industrialization in actual hydrogen production. Developing corrosion-resistant and heat-resistant systems made of industrial structural materials, and continuing to optimize and simulate coupled processes are the future development directions of thermochemical sulfur-iodide cycle water splitting hydrogen production technology.

Key Words： sulfur-iodine cycle;nuclear energy;hydrogen production;thermochemical cycle;water splitting;pilot scale system

Abstract:

Keywords:

Foundation: 国家自然科学基金杰出青年基金资助项目(52125605);; 中央高校基本科研业务费专项资金资助项目(2022ZFJH04)

Authors: WANG Zhihua;ZENG Junjie;HE Yong;LI Mingyang;WANG Xiaoding;

DOI: 10.13226/j.issn.1006-6772.CN23060601

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