Pyroprocessing technology development for flexible introduction of fast reactor fuel cycle

高速炉燃料サイクル導入に柔軟性を有する乾式再処理技術開発

飯塚 政利*; 野平 俊之*; 多田 康平  ; 村上 毅*; 小藤 博英  

Iizuka, Masatoshi*; Nohira, Toshiyuki*; Tada, Kohei; Murakami, Tsuyoshi*; Kofuji, Hirohide

By adopting the pyroprocessing together with fast reactor which is partially/fully loaded with metal fuels, a fuel cycle system concept with enhanced MA recovery and transmutation capability can be designed. This fuel cycle system flexibly accommodates various possible scenarios for the fast reactor introduction and Pu/MAs management with the largest reduction effects on nuclear waste toxicity, making the most of current R&D infrastructure and planned industrial resources using oxide fuels. As a part of above mentioned R&D, the adaptation of liquid Ga cathode to the electrorefining process of pyro-process has been examined to improve decontamination factor of rare-earth FP element.