ALEXANDRIA, Va., April 21 -- United States Patent no. 12,606,648, issued on April 21, was assigned to Chevron Phillips Chemical Co. LP (The Woodlands, Texas).

"Centralized hydrocarbon treatment in a polymer production process" was invented by Reza Khankal (Bellaire, Texas), Hetian Li (Houston), Timothy O. Odi (Kingwood, Texas), Anurag Gupta (Sugar Land, Texas) and Willie J. Isom (Missouri City, Texas).

According to the abstract* released by the U.S. Patent & Trademark Office: "Treaters that are configured to remove one or more contaminants from hydrocarbon streams recovered from a polymerization process are located upstream of the monomer and diluent recovery unit."

The patent was filed on July 13, 2023, under Application No. 18/351,935....