US Patent Issued to L'Air Liquide Societe Anonyme Pour l'Etude et l'Exploitation des Procedes Georges Claude on Feb. 3 for "Method for liquefying a stream rich in CO 2" (French Inventors)

ALEXANDRIA, Va., Feb. 3 -- United States Patent no. 12,540,771, issued on Feb. 3, was assigned to L'Air Liquide Societe Anonyme Pour l'Etude et l'Exploitation des Procedes Georges Claude (Paris).

"Method for liquefying a stream rich in CO 2" was invented by Michael Tran (Champigny sur Marne, France) and Mathieu Leclerc (Champigny sur Marne, France).

According to the abstract* released by the U.S. Patent & Trademark Office: "In a method for liquefying a gas rich in carbon dioxide, the gas is compressed to a first pressure greater than its critical pressure in a compressor to form a compressed gas, the compressed gas is cooled through heat exchange with a refrigerant to a variable temperature to form a cooled compressed gas with a density b...