公开(公告)号：US20250145457A1

公开(公告)日：2025-05-08

申请号：US18504647

申请日：2023-11-08

Applicant: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS

Inventor： Mohammad Mozahar HOSSAIN ,  Omar Mohammad O. ALAMOUDI ,  Wasim Ullah KHAN ,  Syed Ahmed ALI ,  Dwi HANTOKO

IPC: C01B3/04 ,  B01J8/02 ,  B01J23/755 ,  B01J23/78 ,  B01J35/10 ,  B01J37/03 ,  B01J37/04 ,  B01J37/06 ,  B01J37/08 ,  B01J37/18 ,  B01J37/34

Abstract: A method for ammonia (NH3) decomposition to hydrogen (H2) and nitrogen (N2) includes introducing and passing a H2-containing feed gas stream into a reactor containing an industrial waste-based nickel (Ni-SMR) catalyst at a temperature of 500 to 900° C. to form a reduced Ni-SMR catalyst; introducing and passing an NH3-containing feed gas stream through the reactor in contact with the reduced Ni-SMR catalyst at a temperature of 100 to 1000° C. thereby converting at least a portion of the NH3 to H2 and regenerating the Ni-SMR catalyst particles to form a regenerated Ni-SMR catalyst, and producing a residue gas stream leaving the reactor; and separating the H2 from the residue gas stream to generate a H2-containing product gas stream.