Isotopic exchange in air detritiation dryers

Conference · Thu Sep 01 04:00:00 EDT 1988 · Fusion Technol.; (United States)

OSTI ID:5865699

Everatt, A E; Dombra, A H; Johnson, R E

Air detritiation dryers at fusion facilities require high detritiation factors to minimize environmental releases. To increase the detritiation factor in air dryers, the authors have investigated a technique of eluting the residual adsorbed tritiated water on a molecular sieve bed that uses H/sub 2/O steam washing during regeneration. The method relies on additional detritiation of the air stream occurring through isotopic exchange between the tritiated water vapor passing through a dryer bed with previously adsorbed non-tritiated water. Isotopic exchange is studied in both an operating industrial-scale air dryer, where the bed has been pretreated to remove tritium, and in a small laboratory bed. A mathematical model is presented to quantify the isotopic exchange process.

• Research Organization: Atomic Energy of Canada Ltd., Chalk River, ON (Canada). Chalk River Nuclear Labs.
• OSTI ID: 5865699
• Report Number(s): CONF-880505-
• Conference Information: Journal Name: Fusion Technol.; (United States) Journal Volume: 14:2
• Country of Publication: United States
• Language: English

Related Subjects

38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY
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70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700206* -- Fusion Power Plant Technology-- Environmental Aspects
ADSORBENTS
ADSORPTION
CHALCOGENIDES
DRYERS
ENVIRONMENTAL IMPACTS
FLUIDS
GASES
INDUSTRIAL PLANTS
ISOTOPE SEPARATION PLANTS
ISOTOPIC EXCHANGE
LABELLED COMPOUNDS
MATHEMATICAL MODELS
MINIMIZATION
MOLECULAR SIEVE PROCESS
MOLECULAR SIEVES
NUCLEAR FACILITIES
OXIDES
OXYGEN COMPOUNDS
RECOVERY
SORPTION
TRITIUM COMPOUNDS
TRITIUM EXTRACTION PLANT
TRITIUM OXIDES
TRITIUM RECOVERY
VAPORS
WATER VAPOR