US Patent Issued to Luoyang Weida Petrochemical Engineering on May 27 for "Method and device thereof for improving selectivity of oxygenate conversion to low-carbon olefin" (Chinese Inventors)

ALEXANDRIA, Va., June 17 -- United States Patent no. 12,312,287, issued on May 27, was assigned to Luoyang Weida Petrochemical Engineering Co. LTD. (Henan, China).

"Method and device thereof for improving selectivity of oxygenate conversion to low-carbon olefin" was invented by Qunzhu Li (Henan, China), Ruiyun Li (Henan, China) and Li Li (Henan, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a method for improving the selectivity of conversion of an oxygenate to low-carbon olefins. A regenerated catalyst from a regenerator enters a pre-hydrocarbon-pooling device where it comes into contact with an activation medium to undergo a pre-hydrocarbon-pooling reaction, forming "hydrocarbon pool" ac...