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

Kasahara, Seiji  ; Kubo, Shinji  ; Hino, Ryutaro; Onuki, Kaoru; Nomura, Mikihiro*; Nakao, Shinichi*

Japan Atomic Energy Agency (JAEA) has been conducting the research and development on the thermochemical water-splitting IS process for effective hydrogen production using nuclear heat at temperatures close to 1000 C. Such temperatures can be supplied by High Temperature Gas-cooled Reactor (HTGR). JAEA's activity covers the studies on control of the process for continuous hydrogen production, the processing in HI decomposition procedure and a preliminary screening of corrosion resistant materials for the construction of the process. The present status of the study is hereby presented, with particular attention given to the studies of the flowsheet of the process using membranes for the HI processing.