초록 ▼

A PSA process for separating a gas flow, such as air, containing a first gas compound, such as nitrogen, which is adsorbed preferentially on an adsorbent, and a second gas compound, such as oxygen, which is adsorbed less preferentially on the adsorbent than the first gas compound. The adsorbent is f

A PSA process for separating a gas flow, such as air, containing a first gas compound, such as nitrogen, which is adsorbed preferentially on an adsorbent, and a second gas compound, such as oxygen, which is adsorbed less preferentially on the adsorbent than the first gas compound. The adsorbent is formed by an aggregate comprising a zeolite phase and a binder, and contains elements Si, Al, Li, Na, Mg, K and Ca, the total proportions of these elements in the adsorbent being such that the Si/Al ratio is between 1 and 2.4, the Na/Li ratio is between 0.012 and 0.300, the Mg/Li ratio is between 0.012 and 0.400, the Ca/Li ratio is between 0.012 and 0.200, and the K/Li ratio is between 0.001 and 0.060.

대표청구항 ▼

[ What is claimed is:] [1.]1. A pressure swing adsorption process for separating a gas flow containing at least one first gas compound which is adsorbed preferentially on at least one adsorbent, and at least one second gas compound which is adsorbed less preferentially on at least said adsorbent tha

[ What is claimed is:] [1.]1. A pressure swing adsorption process for separating a gas flow containing at least one first gas compound which is adsorbed preferentially on at least one adsorbent, and at least one second gas compound which is adsorbed less preferentially on at least said adsorbent than said first gas compound, said adsorbent being formed by an aggregate comprising essentially a zeolite phase and at least one binder, wherein said adsorbent contains elements Si, Al, Li, Na, Mg, K and Ca, the total proportions of said elements in said adsorbent being such that:the Si/Al ratio is between 1 and 2.4;the Na/Li ratio is between 0.012 and 0.300;the Mg/Li ratio is between 0.012 and 0.400;the Ca/Li ratio is between 0.012 and 0.200; andthe K/Li ratio is between 0.001 and 0.060.