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. 21, 2020

Filed:

Jul. 07, 2015
Applicant:

Total SA, Courbevoie, FR;

Inventors:

Denis Chretien, Paris, FR;

Salim Azzi, Montigny le Bretonneux, FR;

Claire Weiss, Vaucresson, FR;

Assignee:

TOTAL SA, Courbevoie, FR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F25J 3/02 (2006.01); C10L 3/10 (2006.01);
U.S. Cl.
CPC ...
F25J 3/0233 (2013.01); C10L 3/10 (2013.01); C10L 3/104 (2013.01); F25J 3/0209 (2013.01); F25J 3/0238 (2013.01); C10L 2290/06 (2013.01); C10L 2290/08 (2013.01); C10L 2290/10 (2013.01); C10L 2290/24 (2013.01); C10L 2290/46 (2013.01); C10L 2290/48 (2013.01); C10L 2290/543 (2013.01); C10L 2290/544 (2013.01); C10L 2290/56 (2013.01); F25J 2200/04 (2013.01); F25J 2200/06 (2013.01); F25J 2200/40 (2013.01); F25J 2200/74 (2013.01); F25J 2200/78 (2013.01); F25J 2205/02 (2013.01); F25J 2205/04 (2013.01); F25J 2215/60 (2013.01); F25J 2220/60 (2013.01); F25J 2235/80 (2013.01); F25J 2260/80 (2013.01); F25J 2270/12 (2013.01); Y02C 10/12 (2013.01);
Abstract

The invention relates to a method for the treatment of natural gas containing carbon dioxide, methane and paraffins. The method comprising: a step of extracting the paraffins from the natural gas in a paraffin-removal column, and a step of separating the carbon dioxide and the methane in a distillation column. The operation of the two columns being provided by means of the thermal coupling of said two columns using a thermal coupling heat exchanger.


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