Additional Iodine Capture of the Modified Silver Aerogel and Technical Review

Stephanie H. Bruffey

Research output: Book/ReportCommissioned report

Abstract

This letter report documents the completion of the Off-Gas Sigma Team–Oak Ridge National Laboratory (ORNL) work package (FT-19OR03010702) Level 4 milestone M4FT-19OR0301070218 “Conduct additional tests and provide technical review support for reengineered silver-functionalized aerogel.” This milestone was completed on time. The report associated with ORNL’s Level 3 milestone M3FT-19OR030017025 “Complete extended duration (3 month) vessel off gas (VOG) test using reengineered silver functionalized aerogel” was transmitted to Pacific Northwest National Laboratory (PNNL). A teleconference was held on August 7, 2019, between ORNL and PNNL to review the report and its associated findings. One of the most notable findings was that bed compaction was observed with both the original and reengineered silver functionalized aerogel. During the teleconference, ORNL informed PNNL that recent test results showed that exposure to 2% NO2 at 150°C caused physical degradation of the original aerogel material, reflected by a loss in weight during exposure to the NO2-bearing gas stream. Visual inspection indicates that the material was degrading to fines that were carried by the gas stream. A path forward was established, and PNNL requested that ORNL test the reengineered aerogel material under similar conditions to assess whether NO2-related degradation also occurred with the reengineered silver-functionalized aerogel.
Original languageEnglish
Place of PublicationUnited States
DOIs
StatePublished - 2019
Externally publishedYes

Keywords

  • 12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
  • 36 MATERIALS SCIENCE

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