ALEXANDRIA, Va., Feb. 17 -- United States Patent no. 12,552,668, issued on Feb. 17, was assigned to L'Air Liquide Societe Anonyme Pour l'Etude et l'Exploitation des Procedes Claude Georges (Paris).
"Method for separating hydrogen and nitrogen from cracked ammonia" was invented by Jean-Pierre Tranier (L'Hay-les-Roses, France) and Francois Fuentes (Le Vesinet, France).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method for separating hydrogen and nitrogen from a gas mixture, including a) thereby partially condensing a hydrogen and nitrogen gas mixture and producing a two-phase stream, b) phase separating the two-phase stream, producing a nitrogen-enriched liquid fraction and a hydrogen-enriched gaseous frac...