Effect of nitrogen compounds on transport of ruthenium through the RCS

Ivan Kajan; Teemu Kärkelä; Ari Auvinen; Christian Ekberg

doi:10.1007/s10967-017-5172-7

Effect of nitrogen compounds on transport of ruthenium through the RCS

Ivan Kajan (Corresponding Author), Teemu Kärkelä, Ari Auvinen, Christian Ekberg

Chalmers University of Technology

Research output: Contribution to journal › Article › Scientific › peer-review

6 Citations (Scopus)

Abstract

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.

Original language	English
Pages (from-to)	2097-2109
Journal	Journal of Radioanalytical and Nuclear Chemistry
Volume	311
Issue number	3
DOIs	https://doi.org/10.1007/s10967-017-5172-7
Publication status	Published - 1 Mar 2017
MoE publication type	A1 Journal article-refereed

Keywords

air radiolysis
nuclear accidents
primary circuit
ruthenium
ruthenium tetroxide
Primary circuit
Air radiolysis
Ruthenium
Nuclear accidents
Ruthenium tetroxide

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1007/s10967-017-5172-7

Cite this

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AU - Kärkelä, Teemu

AU - Auvinen, Ari

AU - Ekberg, Christian

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AB - 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.

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KW - nuclear accidents

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KW - ruthenium tetroxide

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JO - Journal of Radioanalytical and Nuclear Chemistry

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Effect of nitrogen compounds on transport of ruthenium through the RCS

Abstract

Keywords

UN SDGs

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