US Patent Issued to Albemarle on Nov. 3 for "FCC catalyst with ultrastable zeolite and transitional alumina its preparation and use" (Texas Inventors)

ALEXANDRIA, Va., Nov. 3 -- United States Patent no. 12,781,135, issued on Nov. 3, was assigned to Albemarle Corp. (Charlotte, N.C.).

"FCC catalyst with ultrastable zeolite and transitional alumina its preparation and use" was invented by Eswaramoorthi Iyyamperumal (Houston), Edward Lee Foster (Pearland, Texas) and Maria Margaret Ludvig (El Lago, Texas).

According to the abstract* released by the U.S. Patent & Trademark Office: "Process for the preparation of a catalyst and a catalyst comprising the use of chi or gamma or gibbsite alumina. Thus, in one embodiment, the invention provides an FCC catalyst composition comprising of ultra-stabilize Y zeolite (USY zeolite) with total Lewis acidity retention of at least above 15% when increasing ...