Industrial Dehydration Bulk Removal

Even in more conventional PSA dehydration zeolites including types A, X and Y have aU been employed in pressure swing drying. Compound beds of alumina and zeoUtes X or Y have been employed for PSA dehydration and CO2 removal for pre-purification of feed to air separation units. 

Compound beds of alumina and zeolite X have been employed successfully in industrial dehydration by PSA. In both types of applications, the more favorable shape of the zeolite isotherms shorten the mass transfer zone and simultaneously allow for achievement of lower mole fractions of water or lower dew points for the product gas. 

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