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Advanced dry head-end reprocessing of light water reactor spent nuclear fuel

United States Patent

November 5, 2013
View the Complete Patent at the US Patent & Trademark Office
Oak Ridge National Laboratory - Visit the Partnerships Directorate Website
A method for reprocessing spent nuclear fuel from a light water reactor includes the step of reacting spent nuclear fuel in a voloxidation vessel with an oxidizing gas having nitrogen dioxide and oxygen for a period sufficient to generate a solid oxidation product of the spent nuclear fuel. The reacting step includes the step of reacting, in a first zone of the voloxidation vessel, spent nuclear fuel with the oxidizing gas at a temperature ranging from C. to form an oxidized reaction product, and regenerating nitrogen dioxide, in a second zone of the voloxidation vessel, by reacting oxidizing gas comprising nitrogen monoxide and oxygen at a temperature ranging from C. The first zone and the second zone can be separate. A voloxidation system is also disclosed.
Collins; Emory D. (Knoxville, TN), Delcul; Guillermo D. (Powell, TN), Hunt; Rodney D. (Harriman, TN), Johnson; Jared A. (Knoxville, TN), Spencer; Barry B. (Knoxville, TN)
UT-Battelle, LLC (Oak Ridge, TN)
13/ 079,897
April 5, 2011
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT This invention was made with government support under DE-AC05-000R22725 awarded by the United States Department of Energy. The Government has certain rights in the invention.