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:
May. 25, 2021
Filed:
May. 24, 2017
Applicant:
L'air Liquide, Societe Anonyme Pour L'etude ET L'exploitation Des Procedes Georges Claude, Paris, FR;
Inventor:
Bertrand Demolliens, Paris, FR;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F25J 3/02 (2006.01); C01B 3/02 (2006.01); C01B 3/50 (2006.01); C01B 3/52 (2006.01); C01B 32/40 (2017.01); B01D 53/00 (2006.01); B01D 53/14 (2006.01); B01D 53/18 (2006.01); C07C 7/04 (2006.01);
U.S. Cl.
CPC ...
F25J 3/0223 (2013.01); B01D 53/002 (2013.01); B01D 53/1406 (2013.01); B01D 53/1418 (2013.01); B01D 53/1493 (2013.01); B01D 53/18 (2013.01); C01B 3/025 (2013.01); C01B 3/506 (2013.01); C01B 3/52 (2013.01); C01B 32/40 (2017.08); C07C 7/04 (2013.01); F25J 3/0233 (2013.01); F25J 3/0252 (2013.01); F25J 3/0261 (2013.01); F25J 3/0276 (2013.01); B01D 2252/10 (2013.01); B01D 2252/205 (2013.01); C01B 2203/046 (2013.01); C01B 2203/047 (2013.01); C01B 2203/048 (2013.01); C01B 2203/0415 (2013.01); C01B 2203/068 (2013.01); C01B 2210/007 (2013.01); C01B 2210/0025 (2013.01); C01B 2210/0053 (2013.01); F25J 2200/70 (2013.01); F25J 2200/76 (2013.01); F25J 2200/94 (2013.01); F25J 2205/04 (2013.01); F25J 2205/30 (2013.01); F25J 2205/66 (2013.01); F25J 2210/42 (2013.01); F25J 2215/02 (2013.01); F25J 2245/42 (2013.01); F25J 2270/04 (2013.01); F25J 2270/24 (2013.01);
Abstract
Process for the combined production of a mixture of hydrogen and nitrogen, and of carbon monoxide by cryogenic distillation and cryogenic scrubbing, wherein a methane-rich liquid is introduced at a first intermediate level of a scrubbing column as first scrubbing liquid and at least one nitrogen-rich liquid is introduced at a level higher than the first level of the scrubbing column as second scrubbing liquid and a mixture of hydrogen and nitrogen is drawn off as overhead gas from the scrubbing column.