ALEXANDRIA, Va., Nov. 18 -- United States Patent no. 12,474,114, issued on Nov. 18, was assigned to HONEYWELL LNG LLC (Wilmington, Del.).
"Semi-open loop liquefaction process" was invented by Mark Julian Roberts (Whitehall, Pa.) and Russell B. Shnitser (Coopersburg, Pa.).
According to the abstract* released by the U.S. Patent & Trademark Office: "Described herein are methods and systems for liquefying natural gas by: cooling and liquefying a natural gas feed stream via indirect heat exchange with at least a first cold refrigerant stream to form a first liquefied natural gas stream and a warmed gaseous refrigerant stream; flashing and separating the first liquefied natural gas stream to form a liquefied natural gas product stream and at le...