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:
Nov. 20, 2018
Filed:
Feb. 08, 2012
Applicant:
Golo Zick, Fontaine, FR;
Inventor:
Golo Zick, Fontaine, FR;
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F25J 3/00 (2006.01); F25J 3/06 (2006.01); F25J 3/02 (2006.01); F25J 3/04 (2006.01);
U.S. Cl.
CPC ...
F25J 3/061 (2013.01); F25J 3/0209 (2013.01); F25J 3/0233 (2013.01); F25J 3/0257 (2013.01); F25J 3/04563 (2013.01); F25J 2200/02 (2013.01); F25J 2200/70 (2013.01); F25J 2210/40 (2013.01); F25J 2210/42 (2013.01); F25J 2210/66 (2013.01); F25J 2260/44 (2013.01); F25J 2270/904 (2013.01); F25J 2280/10 (2013.01); F25J 2290/90 (2013.01);
Abstract
In a process for the cryogenic separation of a methane-rich feed stream containing between 3 and 35% of oxygen and also nitrogen, the feed stream is cooled in order to produce a cooled stream, at least one portion of the cooled stream is sent to a distillation column, a bottom stream is withdrawn from the distillation column, the bottom stream being enriched in methane compared to the feed stream, a stream enriched in oxygen compared to the feed stream is withdrawn from the distillation column, and a nitrogen-rich stream is sent to the column.