ALEXANDRIA, Va., Aug. 12 -- United States Patent no. 12,704,322, issued on Aug. 11, was assigned to L'Air Liquide Societe Anonyme Pour l'Etude et l'Exploitation des Procedes Georges Claude (Paris).
"Process and apparatus for liquefaction of CO 2" was invented by Mathieu Leclerc (Champigny-sur-Marne, France).
According to the abstract* released by the U.S. Patent & Trademark Office: "In a process of liquefaction and subcooling of a stream rich in CO2, the stream is liquefied by a closed cycle of refrigerant and subcooled by heat exchange with three streams of liquid CO2 at different pressures."
The patent was filed on Aug. 12, 2024, under Application No. 18/800,339.
*For further information, including images, charts and tables, please vi...