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.:
Date of Patent:
Mar. 31, 2020
Filed:
Nov. 07, 2014
Applicant:
L'air Liquide, Societe Anonyme Pour L'etude ET L'exploitation Des Procedes Georges Claude, Paris, FR;
Inventors:
Benoit Davidian, Saint Maur des Fosses, FR;
Richard Dubettier-Grenier, La Varenne Saint Hilaire, FR;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F25J 3/04 (2006.01);
U.S. Cl.
CPC ...
F25J 3/04412 (2013.01); F25J 3/04169 (2013.01); F25J 3/04181 (2013.01); F25J 3/04448 (2013.01); F25J 3/04454 (2013.01); F25J 3/04957 (2013.01); F25J 3/04963 (2013.01); F25J 2200/10 (2013.01); F25J 2200/20 (2013.01); F25J 2205/62 (2013.01); F25J 2205/66 (2013.01); F25J 2235/42 (2013.01); F25J 2245/42 (2013.01);
Abstract
A process comprises a first set of distillation columns and a second set of distillation columns, a low-pressure column of the first set being connected to a column operating at higher pressure of the second set by means of a gas arriving from the top of the column operating at a higher pressure and/or by means of a fluid arriving from the low-pressure column.