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.

Date of Patent:
Jun. 20, 2023

Filed:

Nov. 16, 2017
Applicant:

L'air Liquide, Societe Anonyme Pour L'etude ET L'exploitation Des Procedes Georges Claude, Paris, FR;

Inventors:

Jean Billy, Le Plessis-Trevise, FR;

Axelle Gaertner, Montreuil, FR;

Antoine Hernandez, Pontault Combault, FR;

Jean-Marc Tsevery, Lieusaint, FR;

Marie-Pascal Victor, Paris, FR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F25J 3/02 (2006.01); C01B 3/50 (2006.01);
U.S. Cl.
CPC ...
F25J 3/0223 (2013.01); C01B 3/506 (2013.01); F25J 3/0247 (2013.01); F25J 3/0252 (2013.01); F25J 3/0261 (2013.01); F25J 3/0271 (2013.01); F25J 2200/06 (2013.01); F25J 2200/76 (2013.01); F25J 2200/90 (2013.01); F25J 2205/30 (2013.01); F25J 2230/32 (2013.01); F25J 2270/04 (2013.01); F25J 2270/24 (2013.01); F25J 2290/12 (2013.01);
Abstract

In a process for the combined production of a) a hydrogen-enriched gas and a carbon monoxide-enriched gas and/or b) a mixture of hydrogen and carbon monoxide by cryogenic distillation and scrubbing, a still liquor is extracted from a scrubbing column and sent to a stripping column, a still liquor is extracted from the stripping column and sent to a separating column for carbon monoxide and methane and a cooling fluid is used at a pressure greater than that of the head of the separating column for cooling at least one fluid extracted at an intermediate level from the scrubbing column.


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