L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des

Rene Lardeau

Daniel Gary

Philippe Fraysse

Frederic Castellanet

Jean-Yves Thonnelier

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.

Process for purifying inert fluids by adsorption on LSX zeolite

A device and a process for preparing a high-purity inert gas from air, includes the successive steps of:

Process and device for the production of ultra-pure inert gas

Process and apparatus for the purification of a cryogenic fluid in liquid, diphase, gaseous or supercritical state, having boiling point Pe, with at least one of its impurities having a boiling point Pe', with Pe'&gt;Pe. The process includes at least one step selected from the group comprised by:

Process for the purification of a cryogenic fluid by filtration and/or

Process and apparatus for the purification of a cryogenic fluid in liquid, diphase, gaseous or supercritical state, having a boiling point Pe, with at least one of its impurities having a boiling point Pe', with Pe'&gt;Pe. The process includes at least one step selected from the group comprised by:

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Saulx-les-Chartreux, France

Rene Lardeau