Active and Stable Ni/Al2O3–(Zr + Ce)O2 Catalyst for Syngas Production via Glycerol Dry Reforming

Abstract: A nickel-based catalyst supported on alumina–zirconia–ceria oxides was investigated to evaluate its performance in the dry reforming of glycerol. The reaction was carried out at 700°C and atmospheric pressure, with a glycerol/CO2 molar ratio of 1. The catalyst demonstrated stable performance for 7 hours onstream, achieving glycerol and CO2 conversions of 60% and 47%, respectively, with corresponding H2 and CO yields of 48% and 58%. Thermogravimetric analysis (TGA) confirmed carbon deposition; however, this did not lead to significant catalyst deactivation. These results highlight the potential of the synthesized catalyst for glycerol conversion for the production of syngas and hydrogen from renewable feedstock. © 2025 Elsevier B.V., All rights reserved.