Clean-up by gas-particle transformation under the action of a corona discharge: application to volatile iodine compounds

Author

Bernis, Alain ; Ducret, Didier ; Gonthier, Yves F J ; Vendel, Jacques

Author_Institution

Process Eng. Lab., Univ. of Savoie, Le Bourget du Lac, France

Volume

29

Issue

6

fYear

2001

fDate

12/1/2001 12:00:00 AM

Firstpage

881

Lastpage

887

Abstract

The ionization of gas induced by the establishing of a corona discharge causes gas-particle transformation of the iodomethane. A radioactive tracer (iodine 131) is used to produce elementary iodine balances for the overall process. The experimental results show the benefit of this procedure for the purification of radioactive gaseous iodine compounds. There is a transfer of activity from the gaseous phase to the solid phase. Transformation levels can reach 80% under our experimental conditions. The experimental study of aerosols produced downstream of the corona discharge evidences the need to carry out this process in three successive stages

Keywords

corona; fission reactor safety; iodine compounds; ionisation; isotope separation; plasma chemistry; radioactive tracers; separation; solid-vapour transformations; I; activity; aerosols; clean-up; corona discharge; electrostatic trapping; elementary iodine balances; gas particle transformation; gas-particle transformation; gaseous phase; iodine 131; particulate phase; purification; radioactive gaseous iodine compounds; radioactive tracer; solid iodine oxides; solid phase; transformation levels; volatile iodine compounds; Aerosols; Corona; Electrodes; Humidity; Inductors; Ionization; Laboratories; Purification; Solids; Testing;

fLanguage

English

Journal_Title

Plasma Science, IEEE Transactions on

Publisher

ieee

ISSN

0093-3813

Type

jour

DOI

10.1109/27.974974

Filename

974974