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U.S. Department of Energy
Office of Scientific and Technical Information

Method and plant for obtaining deuterium-enriched water

Patent ·
OSTI ID:5501837
The synthesis gas plant is operated in n successive periods. During the first period, fresh water in excess is supplied to the synthesis gas plant and the waste water from the resulting mixture is separated in a condenser and supplied to a storage container. During the next (n-1) operating periods the waste water stored in the container is used as freed water for the synthesis gas plant and the waste water obtained on each occasion is stored in layers, depending on its deuterium concentration, in the container. The waste water having the highest deuterium concentration, obtained during the last operating period, is introduced into a second container and supplied therefrom to a heavy-water plant. In order to recover deuterium from the gas mixture leaving the condenser and consisting of hydrogen, steam and residual components, the gas mixture is introduced into an exchange stage, in which the gas mixture is brought into isotope exchange in counter-current with additional water, as a result of which the additional water becomes enriched in deuterium and is supplied to the synthesis gas plant.
Assignee:
Sulzer Brothers Limited (Switzerland)
Patent Number(s):
US 4504460
OSTI ID:
5501837
Country of Publication:
United States
Language:
English