The invention relates to a process for removing oxygen from
liquid argon using a TSA (temperature sWing adsorption)
cyclical process that includes cooling an adsorbent bed to
sustain argon in a liquid phase; supplying the adsorbent bed
With a liquid argon feed that is contaminated With oxygen and
purifying the liquid argon thereby producing an argon prod
uct With less oxygen contaminant than is in the initial liquid
argon feed; draining the puri?ed residual liquid argon product
and sending puri?ed argon out of the adsorbent bed. Regen
eration of specially prepared adsorbent allows the adsorbent
bed to warm up to temperatures that preclude the use of
requiring either vacuum or evacuation of adsorbent from the
bed.
Gaseous