公开(公告)号：US20250121361A1

公开(公告)日：2025-04-17

申请号：US18915198

申请日：2024-10-14

Applicant: CHEVRON U.S.A. INC.

Inventor： Xiaoying OUYANG ,  Alexander E. KUPERMAN ,  Huping LUO ,  Rahul S. BHADURI ,  Christopher LANE

IPC: B01J23/94 ,  B01J23/755 ,  C01B3/30

Abstract: Methods for regenerating spent catalysts, including spent catalysts used in in the catalytic conversion of a hydrocarbon feedstock. The method and associated processes comprising the method are useful to recover spent catalysts used in the petroleum and chemical processing industries. The method generally involves the use of an aqueous leaching solution to leach catalytically active metals from the spent catalyst so that solid carbon built up on the catalyst may be separated from the catalyst metals. The recovered catalyst metals, or a catalyst formed therefrom, may then be re-used in a catalytic conversion process.