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.

Steam reforming of clean biogas over Rh and Ru open-cell metallic foam structured catalysts / Tarifa, Pilar; Schiaroli, Nicola; Ho, Phuoc Hoang; Cañaza, Fernando; Ospitali, Francesca; Sanghez de Luna, Giancosimo; Lucarelli, Carlo; Fornasari, Giuseppe; Vaccari, Angelo; Monzon, Antonio; Benito, Patricia. - In: CATALYSIS TODAY. - ISSN 0920-5861. - ELETTRONICO. - 383:(2022), pp. 74-83. [10.1016/j.cattod.2021.03.024]

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

Schiaroli, Nicola;Ho, Phuoc Hoang;Ospitali, Francesca;Sanghez de Luna, Giancosimo;Lucarelli, Carlo;Fornasari, Giuseppe;Vaccari, Angelo;Benito, Patricia
2022

Abstract

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.
2022
Steam reforming of clean biogas over Rh and Ru open-cell metallic foam structured catalysts / Tarifa, Pilar; Schiaroli, Nicola; Ho, Phuoc Hoang; Cañaza, Fernando; Ospitali, Francesca; Sanghez de Luna, Giancosimo; Lucarelli, Carlo; Fornasari, Giuseppe; Vaccari, Angelo; Monzon, Antonio; Benito, Patricia. - In: CATALYSIS TODAY. - ISSN 0920-5861. - ELETTRONICO. - 383:(2022), pp. 74-83. [10.1016/j.cattod.2021.03.024]
Tarifa, Pilar; Schiaroli, Nicola; Ho, Phuoc Hoang; Cañaza, Fernando; Ospitali, Francesca; Sanghez de Luna, Giancosimo; Lucarelli, Carlo; Fornasari, Giuseppe; Vaccari, Angelo; Monzon, Antonio; Benito, Patricia
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/818627
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