US Patent Issued to Chevron U.S.A. on Feb. 10 for "Hydrocracking catalyst and process using molecular sieve SSZ-91" (California, Texas Inventors)

ALEXANDRIA, Va., Feb. 11 -- United States Patent no. 12,545,844, issued on Feb. 10, was assigned to Chevron U.S.A. Inc. (San Ramon, Calif.).

"Hydrocracking catalyst and process using molecular sieve SSZ-91" was invented by Viorel Duma (Hercules, Calif.), Theodorus Ludovicus Michael Maesen (Spring, Texas) and Hyungjae Alexander Yoon (Richmond, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Described herein is a hydrocracking catalyst and process that may be used to make middle distillates and unconverted oil having beneficial yield and product characteristics. The process generally comprises contacting a hydrocarbon feed with the hydrocracking catalyst under hydrocracking conditions to produce a produc...