Apply in as catalyze carrier, co-adsorption of CO2 and H2O H2O and H2S, as desiccant ... any molecular smaller than 10 Å , mainly used as catalyze carrier, co-adsorption of CO2 and H2O H2O and H2S, as desiccant ... oxygen in small scale oxygen concentrators 13X Molecular Sieve for co-adsorption ,desiccant