Reliability improvements of corrosion-resistant equipment for thermochemical water splitting hydrogen production iodine-sulfur process

Kamiji, Yu; Noguchi, Hiroki  ; Takegami, Hiroaki ; Tanaka, Nobuyuki ; Iwatsuki, Jin ; Kasahara, Seiji  ; Kubo, Shinji  

JAEA has been conducting R&D on the thermochemical iodine-sulfur (IS) process for nuclear-powered hydrogen production. The IS process is one of the promising candidates of heat application of the high-temperature gas-cooled reactors. The glass-lined steel is one of the candidate materials which has both corrosion resistance and structural strength. This paper reveals technical matters to improve reliability of the glass-lined steel equipment. It found that the improved glass-lined steel showed soundness in the process environment from the results of stress analyses for the glass layer by FEM, tests for heat cycle, bending load and corrosion.