Process for the adsorptive oxygen-enrichment of air with mixtures of Ca zeolite A molecular sieves by means of vacuum swing adsorption

摘要

A process for oxygen-enrichment of air by means of vacuum swing adsorption (VSA) using Ca zeolite A molecular sieves, the improvement wherein the adsorbers of the VSA units are filled with Ca zeolite A molecular sieves which have different adsorption characteristics.