Monolith adsorbents for air separation processes

The present invention provides for methods for preparing an adsorbent containing sheet, their preparation into adsorbent monoliths and their subsequent use in air separation processes. More particularly, the present invention relates to the use of alkali or alkaline metal salts or mixtures thereof in preparing zeolite containing adsorbent sheets which can be used to construct monolith structures. An improved method for preparing an adsorbent containing sheet is disclosed. Alkali or alkaline metal salts or mixtures thereof are added to a slurry during preparation of the adsorbent containing sheet or washed onto a finished adsorbent monolith which was prepared from the adsorbent containing sheet. The treated adsorbent monoliths provide improved sorption capacity and N/0selectivity when employed in gas separation processes.