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:
Dec. 29, 2015
Filed:
Oct. 17, 2008
Béatrice Fischer, Lyons, FR;
Gilles Ferschneider, Chaponay, FR;
Anne Claire Lucquin, Saint Maurice L'Exil, FR;
Béatrice Fischer, Lyons, FR;
Gilles Ferschneider, Chaponay, FR;
Anne Claire Lucquin, Saint Maurice L'Exil, FR;
IFP Energies Nouvelles, Rueil-Malmason, FR;
Abstract
The method provides liquefaction of a natural gas by carrying out the following stages: cooling the natural gas; feeding the cooled natural gas into a fractionating column so as to separate a methane-rich gas phase and a liquid phase rich in compounds heavier than ethane; and liquefying the methane-rich stream so as to obtain the liquid natural gas. According to the invention, the operating conditions in the fractionating column are so selected that said liquid phase comprises a molar proportion of methane ranging between 10% and 150% of the molar proportion of ethane.