[2J14-19] Hydrogen Treatment System

[2J16] Development of Hydrogen Treatment System in Severe Accidents Phase-II

(3) Measurement of Chemical Reaction Behavior by Experiment of Packed Bed in Single Tube

*Daiki Takeyama¹, Masayuki Sato¹, Takashi Mawatari¹, Kotaro Nakamura¹, Masato Fukuta¹, Hiroki Kokami¹, Hiroshi Masaki¹ (1. TOSHIBA ESS)

Keywords:Severe accidents, Hydrogen treatment system, Metal oxide, Safety enhancements, Oxidation reaction, Reaction rate, Reaction of heat, Packed bed

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. In order to study the system dimensions and installation location, it is necessary to accurately understand the chemical reaction behavior between the metal oxide and hydrogen in the reactor. Therefore, we designed and prototyped a reaction tube test piece, which is filled with metal oxide molded into 2 mm granules. In the test, basic data on the amount of hydrogen treated, the temperature in the packed bed. We quantitatively evaluated the hydrogen treatment performance from the test results.