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:
Apr. 18, 2023

Filed:

May. 17, 2018
Applicant:

Technip France, Courbevoie, FR;

Inventors:

Yvon Simon, Andresy, FR;

Bruno Destour, Rueil Malmaison, FR;

Marco Valente, Puteaux, FR;

Assignee:

TECHNIP ENERGIES FRANCE, Nanterre, FR;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C07C 7/00 (2006.01); B01D 53/18 (2006.01); C07C 7/04 (2006.01); C07C 7/09 (2006.01); C07C 7/11 (2006.01); C10G 70/04 (2006.01); C10G 70/06 (2006.01); F25J 3/02 (2006.01);
U.S. Cl.
CPC ...
C07C 7/005 (2013.01); B01D 53/18 (2013.01); C07C 7/04 (2013.01); C07C 7/09 (2013.01); C07C 7/11 (2013.01); C10G 70/041 (2013.01); C10G 70/06 (2013.01); F25J 3/0219 (2013.01); F25J 3/0238 (2013.01); F25J 2200/02 (2013.01); F25J 2200/70 (2013.01); F25J 2205/04 (2013.01); F25J 2205/50 (2013.01); F25J 2210/12 (2013.01);
Abstract

This method comprises passing a residual stream into a flash drum to form a gaseous overhead flow and liquid bottom flow, and feeding the bottom flow into a distillation column, It comprises cooling the overhead flow in a heat exchanger to form a cooled overhead flow. It comprises the extraction of a gaseous overhead stream at the head of the distillation column, and the formation of at least one effluent stream from the overhead stream and/or from the top stream. The separation of the cooled overhead flow comprises passing the cooled overhead flow into an absorber, and injecting a methane-rich stream into the absorber to place the cooled overhead flow in contact with the methane-rich stream.


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