Process for the separation of mixtures of oxygen and of nitrogen

Details Process for the separation of mixtures of oxygen and of nitrogen Process for the separation of mixtures of oxygen and of nitrogen

1996-04-01

1997-09-30

Spitzer, Robert

Gas separation: processes

Solid sorption

Including reduction of pressure

95130, 95902, B01D 53047

Patent

active

056721951

ABSTRACT:
The invention relates to a process for the separation of a mixture of oxygen and nitrogen into each of its constituents, including bringing the mixture to be separated, in an adsorption zone, into contact with a selective adsorbent for nitrogen, the adsorbent being an agglomerated zeolite exhibiting an Si/Al ratio lower than 5, a porosity of between 0.38 and 0.60 and a parameter a.sub.k of at least 0.5 s.sup.-1, the parameter a.sub.k characterizing the kinetics of adsorption of nitrogen on the adsorbent in the adsorption zone in accordance with the Linear Driving Force model, it being understood that when the adsorbent is a zeolite containing lithium its porosity can vary between 0.25 and 0.60.

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