As an Adsorption Agent

Zeolites are capable of strongly binding molecules which are small enough to penetrate their pore systems. This particularly holds for water and for other small polar and polarizable molecules and is the basis of their utilization as 

In addition to the removal of water, zeolites are industrially utilized for removal of trace constituents such as carbon dioxide,. sulfur compounds, ammonia etc. from different gas mixtures. 

Purification of hydrogen with zeolites (Ca zeolite A) in which carbon monoxide is removed with the help of PSA-technology and ultrapure hydrogen is obtained, is 

In recent years there have been attempts to utilize Si02-rich hydrophobic zeolites, which are obtained by intensive dealuminization (with SiCl4 or ammonium rephicement) of zeolite Y, for solvent recovery. 

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