Flowsheet study of the thermochemical water-splitting iodine-sulfur process for effective hydrogen production

Seiji Kasahara, Shinji Kubo, Ryutaro Hino, Kaoru Onuki, Mikihiro Nomura, Shin ichi Nakao

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The Japan Atomic Energy Agency (JAEA) is performing research and development on the thermochemical water-splitting iodine-sulfur (IS) process for hydrogen production with the use of heat (temperatures close to 1000 °C) from a nuclear reactor process plant. Such temperatures can be supplied by a High Temperature Gas-cooled Reactor (HTGR) process. JAEA's activity covers the control of the process for continuous hydrogen production, processing procedures for hydrogen iodide (HI) decomposition, and a preliminary screening of corrosion resistant process materials. The present status of the R&D program is reported herein, with particular attention to flowsheet studies of the process using membranes for the HI processing.

Original languageEnglish
Pages (from-to)489-496
Number of pages8
JournalInternational Journal of Hydrogen Energy
Issue number4
Publication statusPublished - 2007 Mar



  • Hydrogen production
  • IS process
  • Thermal efficiency
  • Thermochemical water splitting

ASJC Scopus subject areas

  • Electrochemistry
  • Fuel Technology
  • Renewable Energy, Sustainability and the Environment

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