Rutheniumverlustinhibierender Ammoniaksynthesekatalysator auf Rutheniumbasis und Herstellungsverfahren dafür

Details

Veröffentlichungs-Nr.

EP4775304

Anmeldetag

12. August 2025

Veröffentlichung

21. Mai 2026

Rechtsraum

EP

Abstract

Provided is a method for preparing a ruthenium catalyst composite for ammonia synthesis, including the steps of: (c) carrying out drying and primary heat treatment of a magnesium/aluminum precursor to prepare a calcined magnesium/ aluminum material; (d) impregnating the calcined magnesium/aluminum material with an aqueous barium precursor solution, and carrying out drying and secondary heat treatment to prepare a calcined magnesium/aluminum/barium material; and (e) impregnating the calcined magnesium/aluminum/barium material with a ruthenium precursor solution, and carrying out drying and tertiary heat treatment to prepare a ruthenium catalyst composite. A ruthenium catalyst composite for ammonia synthesis obtained by the method is also provided. The method can prevent ruthenium (Ru) loss caused by ruthenium (Ru) volatilization in preparing the catalyst and in synthesizing ammonia. The ruthenium catalyst composite for ammonia synthesis includes a trace amount of aluminum, and thus can solve the problem of degradation of catalytic activity caused by high-content aluminum oxide.

Anmelder

Firma

Korea Institute of Energy Research

Land

🇰🇷 Südkorea