Inorganic Chemicals Industry ›› 2022, Vol. 54 ›› Issue (9): 21-27.doi: 10.19964/j.issn.1006-4990.2021-0575

• Reviews and Special Topics • Previous Articles     Next Articles

Economic analysis and research on nuclear hydrogen production technology based on thermochemical cycle

LI Zhiyong(),YU Qian,HU Jiang,RONG Mei,SHANG Xin,ZHANG Yifan   

  1. China Nuclear Power Engineering Corporation,Beijing 100840,China
  • Received:2021-09-23 Online:2022-09-10 Published:2022-09-22

Abstract:

Thermochemical cycle is considered as a promising hydrogen production scheme to realize large?scale hydrogen production in a clean and sustainable way.It is of great significance to analyze its process and economy,and give the advantages and disadvantages of different cycles from the aspects of technology maturity and investment cost.The difference between different thermochemical cycles from the aspects of reactor adaptability,technical maturity and production scale was analyzed,and the advantages,disadvantages and challenges of these methods were discussed.In addition,different thermochemical cycles were compared and analyzed according to thermal efficiency,cost of hydrogen production and lobal warming potential(GWP).The research results showed that the sulfur?iodine thermochemical cycle(SI) had certain advantages in thermal efficiency,cost and GWP,but the reactor that could be coupled with it was limited due to the relatively high operating temperature.The GWP of hybrid sulfur cycle(HyS) was the lowest,but it was faced the problem of H2SO4 decomposition under high temperature conditions.Due to the low operating temperature,Cu-Cl cycle showed great potential in reactor coupling,low quality heat utilization,hydrogen production cost and environmental impact.

Key words: nuclear hydrogen production, HyS, thermochemical cycle, technical economy

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