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Modelling Aging Effects on a Thermal Cycling Absorption Process Column

C. Laquerbe, S. Contreras, O. Baudouin, J. Demoment

Fusion Science and Technology / Volume 54 / Number 2 / August 2008 / Pages 403-406

Technical Paper / Isotope Separation /

Palladium coated on alumina is used in hydrogen separation systems operated at CEA/Valduc, and more particularly in Thermal Cycling Absorption Process columns. With such materials, tritium decay is known to induce aging effects which have direct side effects on hydrogen isotopes absorption isotherms. Furthermore in a TCAP column, aging occurs in an heterogeneous way. The possible impacts of these intrinsic material evolutions on the separation performances are investigated here through a numerical approach.

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