Development strategy for non-nuclear grade hydrogen production system coupled with the Japan's HTTR

Sakaba, Nariaki ; Sato, Hiroyuki  ; Ohashi, Hirofumi ; Nishihara, Tetsuo ; Kunitomi, Kazuhiko ; Shiozawa, Shusaku

Japan Atomic Energy Agency (JAEA) started design studies of the thermochemical water-splitting Iodine Sulphur (IS) process to be coupled with the HTTR to demonstrate hydrogen production from nuclear. It is important from an economic point of view that a non-nuclear grade, rather than nuclear grade, IS process plant be built based on conventional chemical plant construction standards. In order to construct the IS process as a conventional chemical plant, some critical safety issues must been studied and clarified prior to the application for safety case review from the government. JAEA has launched R&D for non-nuclear grade IS process. This paper describes the development strategy for non-nuclear grade hydrogen production system coupled with the Japan's HTTR.