Effect of NO_x and Water Variations on Iodine Loading of AgZ

Technical Report · Tue Jun 30 00:00:00 EDT 2020

DOI:https://doi.org/10.2172/1649065· OSTI ID:1649065

Greaney, Allison T. ^[1]; Bruffey, Stephanie H. ^[1]; Jubin, Robert Thomas ^[1]

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1. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

Reprocessing of used nuclear fuel will result in the release of several volatile radionuclides that need to be removed from facility off-gas streams before their release to the environment. Iodine, one of these radionuclides, is expected to be primarily released in the dissolver off-gas stream as iodine (I₂) or methyl iodide (CH₃I). Sorbents that target I₂ and CH₃I removal from the DOG stream will need to adsorb iodine under elevated temperatures and in the presence of water vapor and nitrogen oxides (NO_x). Previous studies examining the adsorption of CH₃I and I₂ in the presence of NO_x gases by silver-exchanged mordenite (AgZ), a zeolite mineral considered for use in this application, have resulted in slightly inconsistent conclusions.

• Research Organization: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC05-00OR22725
• OSTI ID: 1649065
• Report Number(s): ORNL/SPR-2020/1581
• Country of Publication: United States
• Language: English

Related Subjects

11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS