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The Ways to Increase Light Water Detritiation Efficiency by Chemical Isotope Exchange Between Hydrogen and Water in Membrane Contact Devices

M. B. Rozenkevich, I. L. Rastunova

Fusion Science and Technology

Volume 60 / Number 4 / November 2011 / Pages 1407-1410


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The results of studying efficiency of water detritiation by “hydrogen - water” chemical isotope exchange in laboratory-scale facility with membrane contact devices including perfluorosulfonic cationite Nafion-type membranes and platinum hydrophobic catalyst RCTU-3SM are presented. It has been shown that a decrease of detritiation efficiency caused by poisoning membranes with metal ions coming from equipment materials due to their corrosion after long-time operating the facility can be observed. It has been shown as well that modification of a membrane by metal ions followed by its regeneration allows not only to restore but also to increase significantly the efficiency of mass-transfer in membrane contact devices. For example, replacing membranes in contact devices of the laboratory-scale facility resulted in increasing the column separation degree by a factor of more than 7 in comparison to initial value obtained at similar conditions.

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