Steam reforming of clean biogas over Rh and Ru open-cell metallic foam structured catalysts
| Autor: | Antonio Monzón, Francesca Ospitali, Pilar Tarifa, Giuseppe Fornasari, Carlo Lucarelli, Patricia Benito, Nicola Schiaroli, Angelo Vaccari, Fernando Cañaza, Phuoc Hoang Ho, Giancosimo Sanghez de Luna |
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| Přispěvatelé: | 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, Ministerio de Ciencia e Innovación (España), Ministerio de Economía y Competitividad (España) |
| Jazyk: | angličtina |
| Rok vydání: | 2022 |
| Předmět: |
Materials science
Nanoparticle 02 engineering and technology General Chemistry 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Catalysis 0104 chemical sciences law.invention Steam reforming Metal Clean biogas Reforming Open-cell foam Rh Ni Chemical engineering Biogas law visual_art visual_art.visual_art_medium Calcination Valorisation 0210 nano-technology Bimetallic strip |
| Zdroj: | Digital.CSIC. Repositorio Institucional del CSIC instname |
| Popis: | 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. P. Tarifa acknowledges the financial support of Spanish Ministry of Science and Innovation (Ref.: BES-2014-069010). |
| Databáze: | OpenAIRE |
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