密閉容器内に設置した水素再結合触媒による水素濃度低減に関する基礎研究

抄録

In the decommissioning of the Fukushima Dai-ich nuclear power plant, the long-term safe storage of fuel debris is necessary. In this process, hydrogen generates by radiolysis of water due to radiation of fuel debris. Therefore, reducing the concentration of hydrogen.is important to ensure the safety of the storage container. Then, it was proposed that the generated hydrogen and the existed oxygen in the container are recombined with the passive autocatalytic recombiner (PAR) installed in the container and returned to water. Basic study was performed to confirm the effectiveness of a small sealed container with PAR on reduction of the hydrogen concentration.