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- W18890607 abstract "Tritiated water (Q{sub 2}O) is produced during fusion fuel purification or air detritiation. Before recovering the tritium by isotope separation, the Q{sub 2}O needs to be reduced to form Q{sub 2} gas. The reduction of tritiated water on iron is an alternative to electrolysis and gas-shift reactors. It allows a simple, compact, configuration with low tritium inventory. The reactor design incorporates a palladium alloy permeator which extracts the Q{sub 2}. Tests on a commercial iron-based catalyst showed a high reactivity and no degradation with repeated cycling. The optimum temperature for water reduction was 375-395{degree}C, and for iron regeneration using hydrogen, 470-495{degree}C. The first prototype reactor-permeator decomposed 9.5 g water in 8 hrs using 210 g iron. The time needed for iron regeneration was reduced to 16 hrs by recirculating the hydrogen. A pilot-scale reactor permeator is now under development: it should be capable of reducing 35 kg of water per year, operating at 1 bar. Attention to the choice of structural materials will minimize tritium carryover into the water produced during regeneration. 7 refs., 2 figs." @default.
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- W18890607 date "1995-03-01" @default.
- W18890607 modified "2023-09-27" @default.
- W18890607 title "A Reactor-Permeator for Reduction of Tritium Oxide on Iron" @default.
- W18890607 doi "https://doi.org/10.13182/fst95-a11963808" @default.
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