Evaluation of a cleaning method for the tritium environment
Abstract
Solvents can be used to clean process equipment and piping that will come in contact with tritium containing gas streams; but, the ways in which solvents interact with catalysts is also of interest. This method of cleaning does not account for impurities within the bulk of a material that could be released from catalyst or containment barriers during high temperature operation. One solvent of interest which can be used because of its ability to both degrease and be analyzed for carbon content is Vertrel™ MCA. Tests were performed to determine carbon, sulfur, and chlorine concentrations for two candidate materials which were subjected to Vertrel MCA cleaning. Comparisons with high temperature hydrogen reduction are provided. Solvent analysis, LECO carbon/low sulfur determination testing, and neutron activation testing were performed to provide comparisons. Results show potential risks of using solvent cleaning and analysis as the only method of determining impurity concentration of materials which will be exposed to high temperature testing.
- Publication Date:
- Research Org.:
- Savannah River Site (SRS), Aiken, SC (United States)
- Sponsoring Org.:
- USDOE National Nuclear Security Administration (NNSA)
- OSTI Identifier:
- 1487372
- Alternate Identifier(s):
- OSTI ID: 1632220
- Report Number(s):
- SRNL-STI-2017-00257
Journal ID: ISSN 0920-3796; PII: S0920379618305258
- Grant/Contract Number:
- AC09-08SR22470
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Fusion Engineering and Design
- Additional Journal Information:
- Journal Volume: 133; Journal Issue: C; Journal ID: ISSN 0920-3796
- Publisher:
- Elsevier
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 70 PLASMA PHYSICS AND FUSION TECHNOLOGY; Tritium purification; Ammonia decomposition; Solvent cleaning
Citation Formats
James, David W., and Morgan, Gregg A. Evaluation of a cleaning method for the tritium environment. United States: N. p., 2018.
Web. doi:10.1016/j.fusengdes.2018.06.005.
James, David W., & Morgan, Gregg A. Evaluation of a cleaning method for the tritium environment. United States. doi:10.1016/j.fusengdes.2018.06.005.
James, David W., and Morgan, Gregg A. Fri .
"Evaluation of a cleaning method for the tritium environment". United States. doi:10.1016/j.fusengdes.2018.06.005. https://www.osti.gov/servlets/purl/1487372.
@article{osti_1487372,
title = {Evaluation of a cleaning method for the tritium environment},
author = {James, David W. and Morgan, Gregg A.},
abstractNote = {Solvents can be used to clean process equipment and piping that will come in contact with tritium containing gas streams; but, the ways in which solvents interact with catalysts is also of interest. This method of cleaning does not account for impurities within the bulk of a material that could be released from catalyst or containment barriers during high temperature operation. One solvent of interest which can be used because of its ability to both degrease and be analyzed for carbon content is Vertrel™ MCA. Tests were performed to determine carbon, sulfur, and chlorine concentrations for two candidate materials which were subjected to Vertrel MCA cleaning. Comparisons with high temperature hydrogen reduction are provided. Solvent analysis, LECO carbon/low sulfur determination testing, and neutron activation testing were performed to provide comparisons. Results show potential risks of using solvent cleaning and analysis as the only method of determining impurity concentration of materials which will be exposed to high temperature testing.},
doi = {10.1016/j.fusengdes.2018.06.005},
journal = {Fusion Engineering and Design},
number = C,
volume = 133,
place = {United States},
year = {2018},
month = {6}
}
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Fig 1: (left) Nickel on ceramic pieces showing an eggshell coating; (right) sintered iron pellets
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