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:
Aug. 15, 2017

Filed:

May. 30, 2014
Applicant:

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

Inventors:

Jean-Renaud Brugerolle, Paris, FR;

Bao Ha, San Ramon, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F25J 3/00 (2006.01); F25J 3/04 (2006.01);
U.S. Cl.
CPC ...
F25J 3/04012 (2013.01); F25J 3/04 (2013.01); F25J 3/042 (2013.01); F25J 3/0409 (2013.01); F25J 3/04018 (2013.01); F25J 3/04024 (2013.01); F25J 3/04054 (2013.01); F25J 3/04084 (2013.01); F25J 3/04109 (2013.01); F25J 3/04187 (2013.01); F25J 3/04254 (2013.01); F25J 3/04296 (2013.01); F25J 3/04381 (2013.01); F25J 3/04393 (2013.01); F25J 3/04412 (2013.01); F25J 3/04496 (2013.01); F25J 3/04812 (2013.01); F25J 3/04836 (2013.01); F25J 2200/06 (2013.01); F25J 2210/06 (2013.01); F25J 2210/40 (2013.01); F25J 2210/42 (2013.01); F25J 2210/50 (2013.01); F25J 2230/08 (2013.01);
Abstract

A compressed air stream is cooled in an exchanger to form a compressed cooled air stream. The stream is then cryogenically compressed in a first compressor to form a first pressurized gas stream. The first pressurized gas stream is further cooled in the exchanger, cryogenically compressed in a second compressor, and then it is cooled and partially liquefied. The cooled and partially liquefied product is then fed to a system of distillation columns. A liquid product is removed from the system of distillation columns. This product is then pressurized, vaporized and warmed in the exchanger to yield pressurized gaseous product.


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