Steam reforming of clean biogas over Rh and Ru open-cell metallic foam structured catalysts
Artikel i vetenskaplig tidskrift, 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.

Rh

Ni

Open-cell foam

Reforming

Clean biogas

Författare

Pilar Tarifa

Universidad de Zaragoza

Universita di Bologna

Nicola Schiaroli

Universita di Bologna

Hoang Phuoc Ho

Chalmers, Kemi och kemiteknik, Kemiteknik, Kemisk apparat- och reaktionsteknik

Universita di Bologna

Fernando Canaza

Universidad de Zaragoza

Francesca Ospitali

Universita di Bologna

Giancosimo Sanghez de Luna

Universita di Bologna

Carlo Lucarelli

Universita degli Studi dell'Insubria

Giuseppe Fornasari

Universita di Bologna

Angelo Vaccari

Universita di Bologna

Antonio Monzon

Universidad de Zaragoza

Patricia Benito

Universita di Bologna

Catalysis Today

0920-5861 (ISSN)

Vol. 383 74-83

Ämneskategorier

Oorganisk kemi

Annan kemiteknik

Annan kemi

DOI

10.1016/j.cattod.2021.03.024

Mer information

Senast uppdaterat

2021-11-18