Hydrogen Production by Steam Reforming of Acetone–Butanol–Ethanol over Supported Nickel Catalysts: Effect of MgO Promoter
Year: 2025
Type: article
Abstract: High Resolution Image Download MS PowerPoint Slide Hydrogen is rapidly emerging as a cornerstone of sustainable energy strategies, and unlocking its full potential depends on innovative technologies that harness renewable raw materials. In this context, this study explores a promising route: hydrogen production using an ABE (acetone–butanol–ethanol) mixture derived from the fermentation of various biomass substrates. A Ni/MgO-Al 2 O 3 catalyst (20 wt % of NiO and 10 wt % of MgO) was prepared and compared with Ni/Al 2 O 3 in ABE (3:6:1 mass ratio, 10% v/v) steam reforming at 400–600 °C. The MgO-promoted catalyst demonstrated significantly enhanced activity due to its superior Ni dispersion and increased basicity. At 500 °C, the Ni/MgO-Al 2 O 3 catalyst achieved 92% global ABE conversion and a hydrogen yield of 55% while maintaining stable performance over 30 h on stream. Moreover, the coking rate was substantially reduced compared with that of Ni/Al 2 O 3, and the deposited carbon was less amorphous, indicating an improved resistance to deactivation. These findings highlight Ni/MgO-Al 2 O 3 as a promising catalyst for sustainable hydrogen production from biomass-derived ABE mixtures.
Source: ACS Omega
Authors: Arthur Rieger Q. Gonçalves, João Paulo da S. Q. Menezes, Robinson L. Manfro, Mariana M. V. M. Souza
Institution: Universidade Federal do Rio de Janeiro
Language: English
Subfield: Catalysis
Field: Chemical Engineering
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $1,935
Award: G3690646728
OpenAlex ID: W4414145697