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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 6287366 B1

PDFFull Text
Date of Patent:
Sep. 11, 2001

Filed:

Apr. 07, 1999

Process for the production of oxygen by adsorption with transatmospheric pressure variation

Applicant:
Inventors:

Nathalie Derive, Paris, FR;

Anne Dubois, Le Chesnay, FR;

Christian Monereau, Paris, FR;

Assignee:

L'Air Liquide Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude, Paris, FR;

Attorney:

Young & Thompson

Primary Examiner:

Robert H Spitzer

Int. Cl.
CPC ...
B01D 5/347 ;
U.S. Cl.
CPC ...
B01D 5/347 ;
Abstract

A repressurization phase of an adsorber comprises a step of first countercurrent repressurization with at least gas from a first co-current decompression of another adsorber, this phase ending in a step of co-current production. Immediately following the first countercurrent repressurization step, air is introduced co-current into the adsorber.

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