Chemistry of inorganic compounds – Modifying or removing component of normally gaseous mixture – Molecular oxygen or ozone component
Patent
1992-02-11
1993-09-21
Heller, Gregory A.
Chemistry of inorganic compounds
Modifying or removing component of normally gaseous mixture
Molecular oxygen or ozone component
95 98, C01B 1300, B01D 5100, B01D 5300
Patent
active
052466760
ABSTRACT:
In the process for the production of oxygen by adsorption, the following combination of steps are used: the number of adsorbers is at least three; the time of pumping y under sub-atmospheric pressure during step b) is higher than dephasing T
, and at least equal to the time x of the production step; the phase of pumping of the column of adsorbent material is carried out by using on said adsorption column successively at least two systems of pumping wherein one is in operation from the start of the pumping operation, another one is adapted to operate until pumping is over.
REFERENCES:
patent: 4969935 (1990-11-01), Hay
patent: 4981499 (1991-01-01), Hay et al.
Heller Gregory A.
L'Air Liquide Societe Anonyme pour l'Etude et, l'Exploitation de
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