Xenon and krypton are recovered from oxygen containing gas, typically derived from liquid oxygen bottoms in a cryogenic air separation plant, by selective adsorption on a Li and Ag exchange zeolite containing 5 to 40% Ag exchange capacity on an equivalents basis, with {HEAD ~ periodic thermal regeneration} of {TAIL ~ the adsorbent} 
Xenon and krypton are recovered from oxygen containing gas , typically derived from liquid oxygen bottoms in a cryogenic air separation plant , by selective adsorption on a Li and Ag exchange zeolite containing 5 to 40 % Ag exchange capacity on an equivalents basis , with { HEAD ~ periodic thermal regeneration } of { TAIL ~ the adsorbent }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL