Vacuum/pressure swing adsorption (VPSA) for production of an oxy

Details Vacuum/pressure swing adsorption (VPSA) for production of an oxy Vacuum/pressure swing adsorption (VPSA) for production of an oxy

1997-01-15

1999-02-16

Spitzer, Robert

Gas separation: processes

Solid sorption

Including reduction of pressure

95101, 95102, 95103, 95105, 95138, B01D 53053

Patent

active

058715657

ABSTRACT:
This invention relates to a VPSA method for the production of a product that is enriched with a more preferred gas from a mixture of the more preferred gas and a less preferred gas and, preferably to a VPSA method for the production of an oxygen-enriched product from air, using an oxygen-preferential adsorbent under equilibrium conditions. In a preferred embodiment the process uses a desorption purge at a nearly constant pressure that is selected to produce a steady stream of oxygen having a purity from 30% to 60% at a pressure in the range of 60 kPa to 20 kPa.

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