Process for separating a gas mixture by pressure swing adsorptio

Details Process for separating a gas mixture by pressure swing adsorptio Process for separating a gas mixture by pressure swing adsorptio

1998-07-02

2000-01-04

Spitzer, Robert

Gas separation: processes

Solid sorption

Including reduction of pressure

95101, 95105, 95130, B01D 53053

Patent

active

060105569

ABSTRACT:
In a process for separating a gas mixture in a pressure swing adsorption device comprising an adsorber, two outlet vessels and a rotary machine at the inlet, the rotation of the rotary machine is reversed during the first depressurization step (c-d) then during the first repressurization step (g-h), so that these first steps are each broken down into two sub-steps in which the inlet for the adsorber successively experiences two opposite flows, whereas the outlet of the adsorber experiences a flow, respectively leaving or entering, of constant direction. The process is particularly useful in the production of oxygen from air.

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