Effect of sucrose on foaming and melting behavior of a low‐activity waste melter feed
Abstract
Abstract Reductants, such as sucrose (C 12 H 22 O 11 ), are added to nuclear waste melter feeds containing high fractions of nitrates and nitrites to reduce excessive foaming during feed‐to‐glass conversion, decrease sulfate segregation, and increase technetium retention. The effect of sucrose on foaming and melting reactions during the conversion was examined using the feed volume expansion test, thermogravimetric analysis, evolved gas analysis, x‐ray diffraction, and scanning electron microscopy with energy dispersive x‐ray spectrometry. Different amounts of sucrose were added to vary the carbon to nitrogen (C/N) ratio in the melter feed. As the C/N ratio increased, the extent of foaming decreased, and the N 2 /NO ratio increased in the evolved gas. Significant foam suppression, rapid gas release at approximately 250°C, and reduction in transition metal oxides were observed at C/N > 1.1.
- Authors:
-
[2];
[1];
[2];
- Pacific Northwest National Laboratory Richland WA USA
- Laboratory of Inorganic Materials Joint Workplace of the University of Chemistry and Technology Prague Prague Czech Republic, Institute of Rock Structure and Mechanics of the ASCR Prague Czech Republic
- U.S. Department of Energy, Office of River Protection Richland WA USA
- Publication Date:
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1532779
- Resource Type:
- Publisher's Accepted Manuscript
- Journal Name:
- Journal of the American Ceramic Society
- Additional Journal Information:
- Journal Name: Journal of the American Ceramic Society Journal Volume: 102 Journal Issue: 12; Journal ID: ISSN 0002-7820
- Publisher:
- Wiley-Blackwell
- Country of Publication:
- United States
- Language:
- English
Citation Formats
Appel, Connor J., Kloužek, Jaroslav, Jani, Nikhil, Lee, Seung Min, Dixon, Derek R., Hrma, Pavel, Pokorný, Richard, Schweiger, Michael J., and Kruger, Albert A.. Effect of sucrose on foaming and melting behavior of a low‐activity waste melter feed. United States: N. p., 2019.
Web. doi:10.1111/jace.16675.
Appel, Connor J., Kloužek, Jaroslav, Jani, Nikhil, Lee, Seung Min, Dixon, Derek R., Hrma, Pavel, Pokorný, Richard, Schweiger, Michael J., & Kruger, Albert A.. Effect of sucrose on foaming and melting behavior of a low‐activity waste melter feed. United States. https://doi.org/10.1111/jace.16675
Appel, Connor J., Kloužek, Jaroslav, Jani, Nikhil, Lee, Seung Min, Dixon, Derek R., Hrma, Pavel, Pokorný, Richard, Schweiger, Michael J., and Kruger, Albert A.. Wed .
"Effect of sucrose on foaming and melting behavior of a low‐activity waste melter feed". United States. https://doi.org/10.1111/jace.16675.
@article{osti_1532779,
title = {Effect of sucrose on foaming and melting behavior of a low‐activity waste melter feed},
author = {Appel, Connor J. and Kloužek, Jaroslav and Jani, Nikhil and Lee, Seung Min and Dixon, Derek R. and Hrma, Pavel and Pokorný, Richard and Schweiger, Michael J. and Kruger, Albert A.},
abstractNote = {Abstract Reductants, such as sucrose (C 12 H 22 O 11 ), are added to nuclear waste melter feeds containing high fractions of nitrates and nitrites to reduce excessive foaming during feed‐to‐glass conversion, decrease sulfate segregation, and increase technetium retention. The effect of sucrose on foaming and melting reactions during the conversion was examined using the feed volume expansion test, thermogravimetric analysis, evolved gas analysis, x‐ray diffraction, and scanning electron microscopy with energy dispersive x‐ray spectrometry. Different amounts of sucrose were added to vary the carbon to nitrogen (C/N) ratio in the melter feed. As the C/N ratio increased, the extent of foaming decreased, and the N 2 /NO ratio increased in the evolved gas. Significant foam suppression, rapid gas release at approximately 250°C, and reduction in transition metal oxides were observed at C/N > 1.1.},
doi = {10.1111/jace.16675},
journal = {Journal of the American Ceramic Society},
number = 12,
volume = 102,
place = {United States},
year = {2019},
month = {7}
}
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