5A zeolite/kaolinite adsorbent for gas purification
AssigneeRhone-Poulenc Chimie
InventorsBernard Pacaud, Marc Mercier
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Abstract
Adsorbent material well adapted for the purification of gases (notably by the PSA and TSA methods) by adsorbing impurities therefrom that are more polar or polarizable than the gases to be purified, e.g., nitrogen, the oxides of carbon and hydrocarbons, comprises a matrix of a type 5A zeolite molecular sieve and a kaolinite clay binder therefor, the clay binder having a concentration of at least 75% by dry weight of kaolinite and a maximum quartz concentration of 20% by dry weight.
Claims16
A process for the purification of gases by passing same over a zeolite molecular sieve to adsorb impurities therefrom, the improvement which comprises utilizing as the adsorbent therefor, an adsorbent material adapted for the purification of gases by adsorbing impurities therefrom that are more polar or polarizable than the gases to be purified, comprising a matrix of a 5A zeolite molecular sieve and a kaolinite clay binder therefor, said clay binder comprising a concentration of at least 75% by dry weight of kaolinite and a maximum quartz concentration of 20% by dry weight.
Dependencies are inferred from the claim text.