Effect of nitrogen compounds on transport of ruthenium through the RCS
Journal article, 2017
Ruthenium is a fission product that can be released from the fuel in case of a severe nuclear accident. In this work the impact of the atmosphere composition, including air radiolysis products, on the transport of ruthenium through a primary circuit was examined. Experiments were performed at temperatures 1300, 1500 and 1700 K in a slightly humid air. In the experiments significant effect of nitrogen oxides (N2O, NO2) and nitric acid on the ruthenium chemistry in the model primary circuit was observed. The obtained results indicate a strong effect of air radiolysis products on the quantity partitioning of transported ruthenium to gaseous and aerosol compounds.
Ruthenium tetroxide
phebus-fp
release
severe accident
deposition
surfaces
primary circuit
Ruthenium
Nuclear accidents
thermal decomposition
containment
Air radiolysis
Nuclear Science & Technology
nuclear-power-plant
Primary circuit
Chemistry
oxides
Author
Ivan Kajan
Chalmers, Chemistry and Chemical Engineering, Energy and Material
T. Karkela
Technical Research Centre of Finland (VTT)
A. Auvinen
Technical Research Centre of Finland (VTT)
Christian Ekberg
Industrial Materials Recycling
Chalmers, Chemistry and Chemical Engineering, Energy and Material
Journal of Radioanalytical and Nuclear Chemistry
0236-5731 (ISSN) 1588-2780 (eISSN)
Vol. 311 3 2097-2109Roots
Basic sciences
Subject Categories
Earth and Related Environmental Sciences
Chemical Sciences
DOI
10.1007/s10967-017-5172-7