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Current R&D status of thermochemical water splitting hydrogen production iodine-sulfur process in Japan Atomic Energy Agency, 1; Hydrogen production test and component development

原子力機構における熱化学ISプロセス水素製造法に関する研究開発の現状,1; 連続水素製造試験及び機器開発

竹上 弘彰; 野口 弘喜; 田中 伸幸; 岩月 仁; 上地 優; 笠原 清司; 今井 良行; 寺田 敦彦; 久保 真治

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

日本原子力研究開発機構では、高温ガス炉を熱源として利用する熱化学法ISプロセスによる水素製造法の研究開発を行っている。ISプロセスの実用化に向けて、主要反応器について耐食性及び処理性能に関する信頼性評価を完了し、これらの成果を基に、全系を実用工業材料で製作した100NL/h-H$$_{2}$$規模の連続水素製造試験装置を完成させた。本報では、これらのISプロセスの研究開発について、連続水素製造試験及び機器開発の現状・成果について報告する。

Japan Atomic Energy Agency (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. JAEA fabricated main chemical reactors made of industrial structural materials and confirmed their integrity in practical corrosive environments in the IS process. Based on the results of these confirmation tests, JAEA have constructed a 100 NL/h-H$$_{2}$$-scale test facility made of industrial structural materials. This report will present an outline and results of hydrogen production tests and reliability improvements of operation stability and components, such as development of a strength estimation method for heat-resistant and corrosion-resistant ceramics components made of silicon carbide.

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