[2J14-19] Hydrogen Treatment System

[2J15] Development of Hydrogen Treatment System in Severe Accidents Phase-Ⅱ

(2) Development of Hydrogen Reactants

*Motoshige Yagyu¹, Akira Yamada¹, Hirofumi Okabe¹, Kazuya Yamada¹, Hiroki Kokami¹, Hiroshi Masaki¹ (1. TOSHIBA ESS)

Keywords:Severe accidents, Hydrogen treatment System, Metal oxides, Safety enhancements, Oxidation reaction, Hydrogen, Reactants

We have developed the hydrogen treatment system with metal oxide as a countermeasure of large quantities of hydrogen generated in the primary containment vessel of BWRs in severe accidents. The powderization of hydrogen reactants was observed in the previous study. Therefore, the mechanism study on the powderization, and improvement of shape retainability was conducted. Reaction heat from the oxidation of hydrogen increases the reactor temperature. Thus, the low heat reaction hydrogen reactants were developed for the purpose of reducing heat generation from oxidation reaction.