US Patent Issued to ExxonMobil Technology and Engineering on Feb. 3 for "Membrane separation of used oil and compositions generated" (Pennsylvania, New Jersey Inventors)

ALEXANDRIA, Va., Feb. 3 -- United States Patent no. 12,540,290, issued on Feb. 3, was assigned to ExxonMobil Technology and Engineering Co. (Annandale, N.J.).

"Membrane separation of used oil and compositions generated" was invented by Christine A. Zielinski (Furlong, Pa.), Paul C. Naegely (Voorhees, N.J.), Meha H. Shah (Easton, Pa.), Charles L. Baker Jr. (Thornton, Pa.) and Chengrong Wang (Easton, Pa.).

According to the abstract* released by the U.S. Patent & Trademark Office: "In an embodiment is provided a process to re-refine used oil that includes introducing a used oil and a solvent to a separation unit under separation conditions selected to produce a purified oil product, the separation unit comprising a porous membrane, a semipor...