Steam reforming of clean biogas over Rh and Ru open-cell metallic foam structured catalysts
Journal article, 2022

The valorisation of clean biogas (CH4/CO2 = 60/40 v/v) by steam reforming over metal open-cell foam-based structured catalysts was investigated. NiCrAl foams were coated by RuMgAl or RhMgAl hydrotalcite-type compounds through electrodeposition to obtain, after calcination, a thin and stable catalytic film of oxides. The active sites for the reforming reactions are highly dispersed Rh or Ru nanoparticles stabilized by a strong metal support interaction, large Ni particles segregated from the support during reduction and reaction, and Rh/Ni bimetallic particles formed by the interaction of the two formers. Rh-based catalysts show superior activity and stability with the time on stream than Ru catalysts, and a low carbon deposition, which is mainly ascribable to the presence of large Ni particles. In comparison to a pelletized catalyst, the structured catalysts are allowed to operate at high space velocities and low Steam to CH4 ratio, increasing the biogas valorisation and thus the productivity.



Open-cell foam


Clean biogas


Pilar Tarifa

University of Zaragoza

University of Bologna

Nicola Schiaroli

University of Bologna

Hoang Phuoc Ho

Chalmers, Chemistry and Chemical Engineering, Chemical Technology

University of Bologna

Fernando Canaza

University of Zaragoza

Francesca Ospitali

University of Bologna

Giancosimo Sanghez de Luna

University of Bologna

Carlo Lucarelli

University of Insubria

Giuseppe Fornasari

University of Bologna

Angelo Vaccari

University of Bologna

Antonio Monzon

University of Zaragoza

Patricia Benito

University of Bologna

Catalysis Today

0920-5861 (ISSN)

Vol. 383 74-83

Subject Categories

Inorganic Chemistry

Other Chemical Engineering

Other Chemistry Topics



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