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:
Jun. 01, 2021
Filed:
Jun. 05, 2020
Applicant:
L'air Liquide, Societe Anonyme Pour L'etude ET L'exploitation Des Procedes Georges Claude, Paris, FR;
Inventors:
Erwan Le Guludec, Paris, FR;
Antoine Hernandez, Paris, FR;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F25J 3/06 (2006.01); C01B 23/00 (2006.01); B01D 53/047 (2006.01); B01D 53/04 (2006.01); B01D 5/00 (2006.01); B01D 3/14 (2006.01);
U.S. Cl.
CPC ...
C01B 23/0094 (2013.01); B01D 3/143 (2013.01); B01D 5/0057 (2013.01); B01D 53/047 (2013.01); B01D 53/0462 (2013.01); C01B 23/0021 (2013.01); C01B 23/0078 (2013.01); F25J 3/069 (2013.01); B01D 2257/80 (2013.01); B01D 2259/402 (2013.01); C01B 2210/007 (2013.01); C01B 2210/0031 (2013.01); C01B 2210/0046 (2013.01); C01B 2210/0053 (2013.01);
Abstract
In a helium purification process, a stream containing at least 10% of helium, at least 10% of nitrogen in addition to hydrogen and methane is separated to form a helium-enriched stream containing hydrogen, a first stream enriched in nitrogen and in methane and a second stream enriched in nitrogen and in methane, the helium-enriched stream is treated to produce a helium-rich product and a residual gas containing water, the residual gas is treated by adsorption (TSA) to remove the water and the regeneration gas from the adsorption is sent to a combustion unit (O).