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. 23, 2025
Filed:
Feb. 28, 2022
L'air Liquide, Societe Anonyme Pour L'etude ET L'exploitation Des Procedes Georges Claude, Paris, FR;
Michael Tran, Champigny sur Marne, FR;
Ludovic Granados, Champigny sur Marne, FR;
Mathieu Leclerc, Champigny sur Marne, FR;
Guillaume Rodrigues, Champigny sur Marne, FR;
Aurore Troptard, Champigny sur Marne, FR;
Abstract
An apparatus for separation of a flow containing at least 95 mol % of carbon dioxide and also at least one impurity lighter than carbon dioxide by distillation comprises a heat exchanger (), a distillation column (), expansion means (V), means for sending the flow to be cooled in the heat exchanger, means for sending the cooled flow to be separated in the distillation column, means for withdrawing at the bottom of the column a liquid flow containing at least 99 mol % of carbon dioxide, means for sending at least a portion () of the liquid flow to be cooled in the heat exchanger to form a subcooled liquid (), means for sending at least a portion of the subcooled liquid to the expansion means to produce a two-phase flow, a phase separator () for separating the two-phase flow to form a gas and a liquid, means for sending at least a portion () of the liquid from the phase separator to be vaporized in the heat exchanger and means for taking a portion () of the liquid from the phase separator.