Process for purifying inert fluids by adsorption on LSX zeolite
AssigneeL'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude
InventorsDaniel Gary, Rene Lardeau
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Abstract
Process for purifying an inert fluid, in particular argon or helium, with respect to at least one of its impurities nitrogen (N.sub.2), oxygen (O.sub.2), carbon dioxide (CO.sub.2), carbon monoxide (CO) and hydrocarbons, in which at least some of the impurities are removed using a first adsorbent of the X zeolite type having a silica to aluminum ratio less than or equal to 1.15, and a purified inert fluid containing at most 10 ppb, preferably at most 1 ppb of impurities is recovered.
Claims18
Process for purifying an inert fluid with respect to at least one of its impurities nitrogen (N.sub.2), oxygen (O.sub.2), carbon dioxide (CO.sub.2), carbon monoxide (CO), and hydrocarbons, which comprises:
- removing at least some of said impurities using a first zeolite adsorbent having a silica to aluminum ratio less than or equal to 1.15;
- and
- recovering a purified inert fluid containing at most 10 ppb of said impurities.
Dependencies are inferred from the claim text.