A Study of the Thermal Decomposition of CH3131I in a Gas Flow in the Presence of “Fizkhmin”TM Granulated Materials

Abstract

Thermal decomposition of a volatile organic compound of radioactive iodine, methyl iodide CH3 131 I, in a gas flow in the presence of various modifications of "Fizkhmin" TM granulated materials based on silica gel impregnated with d-elements was studied. Under comparable experimental conditions, 97%-99% decomposition of CH3 131 I is achieved at ~770˚C without sorbents and at ~540˚C and ~465˚C in the presence of straight silica gel and of the material based on it, impregnated with compounds of Ni or its mixture with Cu (8-10 wt%), respectively.

Investigations into Plasma-Mediated Decomposition of Organoiodide Species as a Pretreatment for Mitigation of Radioiodine Emissions

“…It is far more difficult to remove organic iodide compounds through adsorption than it is to remove molecular iodine. Therefore, we propose decomposing the organic iodide to liberate molecular iodine from it before feeding the off-gas stream to an adsorption column to facilitate the capture of radioiodine from the off-gas stream. − This also paves the path for a more sustainable and greener nuclear energy production using spent uranium. , …”