B - Operations – Transporting – 01 – D
Patent
B - Operations, Transporting
01
D
B01D 53/04 (2006.01) B01D 53/047 (2006.01)
Patent
CA 2182641
In the selective adsorption of nitrogen from gas mixtures with less polar gas components at temperatures of 20 to 50°C using pressure-swing adsorption, in which the gas mixture is passed through an adsorber which is filled with a packing of zeolite granules, the improvement which comprises providing at least two packings in the adsorber, a Na-zeolite X being provided in the inlet zone ofthe adsorber and a Li-zeolite X being provided in the outlet zone of the adsorber.
Hees Bruno
Puppe Lothar
Reiß Gerhard
Aktiengesellschaft Bayer
Fetherstonhaugh & Co.
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