US Patent Issued to SHELL USA on Sept. 29 for "Method of preparing a hydrocracking catalyst" (Dutch, American Inventors)

ALEXANDRIA, Va., Sept. 30 -- United States Patent no. 12,746,535, issued on Sept. 29, was assigned to SHELL USA INC. (Houston).

"Method of preparing a hydrocracking catalyst" was invented by David Allen Cooper (Malvern, Pa.), Johan Peter Den Breejen (Amsterdam), James Hughes (Malvern, Pa.), Cornelis Ouwehand (Amsterdam) and Marcello Stefano Rigutto (Amsterdam).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention provides a method of preparing a supported catalyst, preferably a hydrocracking catalyst, the method at least comprising the steps of: a) providing a zeolite Y having a bulk silica to alumina ratio (SAR) of at least 10; b) mixing the zeolite Y provided in step a) with a base, water and...