ENDURANCE TEST FOR SCK-CEN CATALYTIC MIXED PACKING, PRPOPOSED FOR WATER DETRITIATION SYSTEM AT JET
	
Gh. Ionita1, A. Bornea1, J. Braet2, I. Popescu1, I . Stefanescu1, N. Bidica1, C Varlam1,    C. Postolache3 and L. Matei3

1National Institute for Cryogenics and Isotopic Separation, Rm-Valcea , P.O,4 ,Box 10, Romania, ionita@icsi.ro
2SCK-CEN, Belgian Nuclear Centre, Boeretang 200, 2400 Mol, Belgium
3National Insitute of Physics and Nuclear Engineering, Bucharest, Magurele, P.O. Box MG6, R-76900 Romania

JET machine's operation lead to continuously generation of tritiated water and therefore  it is necessary to consider the development of a Water Detritiation System (WDS) for JET and also for ITER.  The key point of WDS is the efficiency and stability of liquid phase catalytic exchange (LPCE) column which has to achieve a high decontamination of tritiated streams.
Before a full-scale water detritiation system can be designed, laboratory experiments led to select two catalytic mixed packing based on hydrophobic Pt-catalyst for LPCE column (FZK packing and SCK-CEN packing). The both packing have good and almost similar performances. A complete data base concerning the influence of b-radiation of tritium and the influence of impurities from feed streams on the catalytic mixed packing's performances and parameters is absolutely necessary. 
The results of 9 months endurance test for SCK-CEN packing exposed at tritiated water (in dynamic and static regime) are presented in this paper. No significant modifications in physico-structural parameters of Pt-catalyst and packing's performances have been observed.