Design consideration on hydrogen production demonstration plant of thermochemical IS process

Iwatsuki, Jin ; Noguchi, Hiroki  ; Terada, Atsuhiko  ; Kubo, Shinji  ; Sakaba, Nariaki ; Onuki, Kaoru; Hino, Ryutaro

Preliminary design study was carried out on the hydrogen production demonstration plant of IS process for thermochemical hydrogen production. In the pilot test, hydrogen production will be examined under prototypical condition using an apparatus made of industrial materials, which is driven by the sensible heat of helium gas heated by an electric heater that simulates the High Temperature Engineering Test Reactor (HTTR). Tentative system condition was defined considering the HTTR specification and the experience on the construction and the operation of the mock-up test facility of steam reformer. The process condition and the system flow diagram were discussed to meet the system condition. Based on the defined process condition, types of the main components were discussed taking the corrosion resistance of the structural materials into consideration. Applicable rules and regulations were also surveyed regarding the plant construction and operation.