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Effective Method for Recovering and Enriching Tritium from Tritiated Water by Dual-Temperature H2O-H2 Exchange Process

Asashi Kitamoto, Y. Takashima, M. Shimizu

Fusion Science and Technology

Volume 8 / Number 2P2 / September 1985 / Pages 2048-2053


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The composite packing with the hydrophobic platinum catalyst for the isotope exchange reaction in H2O-H2 system was improved to be appreciably active. Therefore, it bacame realistic to design a process for tritium recovery by the dual-temperature exchange method. The separation performance of dual-temperature 5-stage cascade (S3-E2) was simulated. The process was desinged to be operated under the condition of P = 0.1 MPa, TH = 70 °C, TC = 15∼20 °C. The cascade could attain tritium recovery ratio of 0.99 and enriching ratio larger than 103.

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