[1I01-08] Severe Accident/Effective Utilization of FP

[1I01] Cesium molybdate traps by silicon oxide coated stainless steel 304

*Thi Mai Dung Do¹, Yuki Uchida², Tadachika Nakayama¹, Hisayuki Suematsu¹ (1. Nagaoka University of Technology, 2. National Institute of Technology, Nagaoka College)

Keywords:Cesium molybdate, stainless steel, reaction, oxidation, severe accident

In the next generation of nuclear reactors, it is necessary to minimize the amount of cesium (Cs) released to the reactor containment building and outside in case of severe accidents. As for traps of Cs vapor, in the form of cesium molybdate (Cs₂MoO₄), silicon oxide (SiO₂) coated stainless steel 304 is proposed to react between Cs₂MoO₄ and SiO₂ at various temperatures. Results of high-temperature tests are shown in the presentation.