NASA NTRS · 19690000026
Two systems developed for purifying inert atmospheres
Abstract
Two systems, one for helium and one for argon, are used for purifying inert atmospheres. The helium system uses an activated charcoal bed at liquid nitrogen temperature to remove oxygen and nitrogen. The argon system uses heated titanium sponge to remove nitrogen and copper wool beds to remove oxygen. Both use molecular sieves to remove water vapor.
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Foster, M. S., Johnson, C. E., Kyle, M. L.. 1969-02-01. Two systems developed for purifying inert atmospheres. https://ntrs.nasa.gov/citations/19690000026
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