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:
Feb. 26, 2019

Filed:

May. 19, 2014
Applicant:

Ifp Energies Nouvelles, Rueil-Malmasion, FR;

Inventors:

Sebastien Gonnard, Grezieu la Varenne, FR;

Nicolas Laloue, Lyons, FR;

Agnes Leroy, Lyons, FR;

Gauthier Perdu, Suresnes, FR;

Assignee:

IFP ENERGIES NOUVELLES, Rueil-Malmaison, FR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 53/14 (2006.01); C10L 3/10 (2006.01); E21B 43/16 (2006.01); E21B 43/40 (2006.01);
U.S. Cl.
CPC ...
B01D 53/1425 (2013.01); B01D 53/1418 (2013.01); B01D 53/1475 (2013.01); B01D 53/1493 (2013.01); C10L 3/101 (2013.01); C10L 3/104 (2013.01); E21B 43/164 (2013.01); E21B 43/40 (2013.01); B01D 2252/20489 (2013.01); C10L 2290/06 (2013.01); C10L 2290/12 (2013.01); C10L 2290/541 (2013.01); Y02C 10/06 (2013.01);
Abstract

Method of decarbonating a hydrocarbon gas, a natural gas for example, by washing with a solvent. Said gas is contacted with an absorbent solution so as to obtain a CO-depleted gas and a CO-laden absorbent solution. The CO-laden absorbent solution is then heated and expanded at a predetermined pressure and temperature so as to release a hydrocarbon-containing gaseous fraction and to obtain a hydrocarbon-depleted absorbent solution, said pressure and temperature being so selected that said gaseous fraction comprises at least 50% of the hydrocarbons contained in said CO-laden absorbent solution and at most 35% of the COcontained in said CO-laden absorbent solution. Finally, the hydrocarbon-depleted absorbent solution is thermally regenerated so as to release a CO-rich gaseous effluent and to obtain a regenerated absorbent solution.


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