公开(公告)号：US20250128244A1

公开(公告)日：2025-04-24

申请号：US18824660

申请日：2024-09-04

Applicant: Haldor Topsoe A/S

Inventor： Charlotte Vinding OVESEN ,  Fernando Morales CANO ,  Jens Henrik HYLDTOFT ,  Michael BRORSON

IPC: B01J23/78 ,  B01J23/00 ,  B01J23/58 ,  B01J35/00 ,  B01J35/30 ,  B01J35/51 ,  B01J35/61 ,  B01J35/63 ,  B01J37/02 ,  C01B3/40

Abstract: A process for producing a catalyst, comprising the steps of modifying a carrier by a first impregnation with at least one alkaline earth metal in a first metal precursor solution, the first metal precursor being decomposed to form at least one metal oxide or metal hydroxide, thereby obtaining a modified carrier. A second impregnation is carried out by incipient wetness by a second precursor solution comprising at least one metal Me in a second solution. Finally, the second precursor is decomposed, thereby obtaining a catalyst body having an enrichment of the at least one metal Me in the outer shell of the catalyst body, the metal being present in a concentration having either as an egg-shell profile or a hammock profile.