Innovative Sodium Cleaning Process Using Saline Solutions

During the development of NOAH process at CEA in the 1980s (Rodriguez, 2021), the addition of sodium hydroxide to water was identified as an interesting way to moderate the kinetics of the sodium-water reaction. Based on these observations, studies were launched at CEA in 2007 with the aim of develo...

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Main Authors: Leïla Gicquel, Sébastien Lefèvre, Laure Moinot, Benjamin Tardivel
Format: Article
Language:English
Published: AIDIC Servizi S.r.l. 2025-07-01
Series:Chemical Engineering Transactions
Online Access:https://www.cetjournal.it/index.php/cet/article/view/15442
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author Leïla Gicquel
Sébastien Lefèvre
Laure Moinot
Benjamin Tardivel
author_facet Leïla Gicquel
Sébastien Lefèvre
Laure Moinot
Benjamin Tardivel
author_sort Leïla Gicquel
collection DOAJ
description During the development of NOAH process at CEA in the 1980s (Rodriguez, 2021), the addition of sodium hydroxide to water was identified as an interesting way to moderate the kinetics of the sodium-water reaction. Based on these observations, studies were launched at CEA in 2007 with the aim of developing an innovative process for treating remaining sodium in the components of a sodium fast reactor (SFR). This process would have the following advantages: control of the sodium-water reaction and limitation of its effects by adding an appropriate salt; flexibility and increase in treatment rates by rapid immersion of the components. In order to overcome the corrosive nature of sodium hydroxide, new salts were studied. Several salts appeared promising in that, for some of them, the reaction no longer generates a shock wave despite an excess of water, the kinetics are slowed down and the release of energy occurs gradually in the reaction medium. Following these results, new experimental campaigns were launched and enabled to identify the influential parameters and to quantify the effects of two salts on the moderation of the sodium-water reaction: tetrasodium EDTA and sodium acetate.
format Article
id doaj-art-0fbb93a2fc7843398af7e0fecee9e824
institution DOAJ
issn 2283-9216
language English
publishDate 2025-07-01
publisher AIDIC Servizi S.r.l.
record_format Article
series Chemical Engineering Transactions
spelling doaj-art-0fbb93a2fc7843398af7e0fecee9e8242025-08-20T03:15:35ZengAIDIC Servizi S.r.l.Chemical Engineering Transactions2283-92162025-07-01117Innovative Sodium Cleaning Process Using Saline SolutionsLeïla GicquelSébastien LefèvreLaure MoinotBenjamin TardivelDuring the development of NOAH process at CEA in the 1980s (Rodriguez, 2021), the addition of sodium hydroxide to water was identified as an interesting way to moderate the kinetics of the sodium-water reaction. Based on these observations, studies were launched at CEA in 2007 with the aim of developing an innovative process for treating remaining sodium in the components of a sodium fast reactor (SFR). This process would have the following advantages: control of the sodium-water reaction and limitation of its effects by adding an appropriate salt; flexibility and increase in treatment rates by rapid immersion of the components. In order to overcome the corrosive nature of sodium hydroxide, new salts were studied. Several salts appeared promising in that, for some of them, the reaction no longer generates a shock wave despite an excess of water, the kinetics are slowed down and the release of energy occurs gradually in the reaction medium. Following these results, new experimental campaigns were launched and enabled to identify the influential parameters and to quantify the effects of two salts on the moderation of the sodium-water reaction: tetrasodium EDTA and sodium acetate.https://www.cetjournal.it/index.php/cet/article/view/15442
spellingShingle Leïla Gicquel
Sébastien Lefèvre
Laure Moinot
Benjamin Tardivel
Innovative Sodium Cleaning Process Using Saline Solutions
Chemical Engineering Transactions
title Innovative Sodium Cleaning Process Using Saline Solutions
title_full Innovative Sodium Cleaning Process Using Saline Solutions
title_fullStr Innovative Sodium Cleaning Process Using Saline Solutions
title_full_unstemmed Innovative Sodium Cleaning Process Using Saline Solutions
title_short Innovative Sodium Cleaning Process Using Saline Solutions
title_sort innovative sodium cleaning process using saline solutions
url https://www.cetjournal.it/index.php/cet/article/view/15442
work_keys_str_mv AT leilagicquel innovativesodiumcleaningprocessusingsalinesolutions
AT sebastienlefevre innovativesodiumcleaningprocessusingsalinesolutions
AT lauremoinot innovativesodiumcleaningprocessusingsalinesolutions
AT benjamintardivel innovativesodiumcleaningprocessusingsalinesolutions