METHOD FOR PROCESSING CARBON IRRADIATED IN A REACTOR OF AN NPP AND APPARATUS FOR IMPLEMENTATION THEREOF Russian patent published in 2022 - IPC G21F9/28 

FIELD: chemical processes.

SUBSTANCE: invention relates to a method and apparatus for processing carbon irradiated in a reactor of an NPP. The method includes selecting a method for separating Carbon isotopes from a group of separation technologies: gas diffusion, nozzle method, gas centrifugation, aerodynamic separation method, laser method. Then working gas is produced from the irradiated NPP Carbon to extract ¹⁴C isotope atoms by the selected separation method. The ¹⁴C isotope is then isolated on a single-stage separation unit or a cascade of said units and separated in a separation unit. Separation is executed to a level ensuring, in a fraction for collection from a single unit or cascade, depleted by the content of ¹⁴C isotope, the activity of ¹⁴C isotope below the level allowing for near-surface disposal of radioactive waste, then sorting, compaction, differentiated disposal of radioactive waste, and return of the waste to nature with natural activity are executed. The apparatus comprises a unit for processing Carbon into working gas for a Carbon isotope separation unit, the output whereof is supplied to the input of the separation unit.

EFFECT: creation of separated fractions of the working gas with a content of ¹⁴C isotope above the initial content and with a content of ¹⁴C isotope reduced to a level allowing for near-surface disposal.

21 cl, 10 dwg