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Hydrogen Isotope Separation Factors on Palladium Alloy Membranes

D.L. Luo, C.S. Shen, D.Q. Meng

Fusion Science and Technology / Volume 41 / Number 3P2 / May 2002 / Pages 1142-1145

Isotope Separation / Proceedings of the Sixth International Conference on Tritium Science and Technology Tsukuba, Japan November 12-16, 2001

The influence of temperature and gas composition on hydrogen isotope separation factors of membrane cascade with reflux ratio of 0.9998 and different palladium alloy membranes were studied. Separation factors for H-D mixture with different palladium alloy membranes varies from 1.31 to 1.42 at different temperatures, and for H-D-T mixture with Pd-8.6%Y alloy membrane, the factors are 1.2 to 2.0 at different temperatures. The results suggest advantages of operating the cell at high temperature because the higher permeation rate and separation factor at high temperature will lead to a great decrease in the separation stages and membrane area of a separation unit.

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