Ce - promoted catalyst from hydrotalcites for CO2 reforming of methane: calcination temperature effect
AUTOR(ES)
Daza, Carlos Enrique, Moreno, Sonia, Molina, Rafael
FONTE
Química Nova
DATA DE PUBLICAÇÃO
2012
RESUMO
Ce-promoted Ni-catalysts from hydrotalcites were obtained. The effect of calcination temperature on the chemical and physical properties of the catalysts was studied. Several techniques were used to determine the chemical and physical characteristics of oxides. The apparent activation energies of reduction were determined. Catalytic experiments at 48 L g-1h-1 without pre-reduction in CO2 reforming of methane were performed. The spinel-like phase in these oxides was only formed at 1000 ºC. The reduction of Ni2+ in the oxides was clearly affected by the calcination temperature which was correlated with catalytic performance. The catalyst calcined at 700 ºC showed the greatest activity.
Documentos Relacionados
- AN IMPROVED CO2 CABINET FOR LOW TEMPERATURE STORAGE OF INFECTIOUS AGENTS WITH GASEOUS CO2 EXCLUDED FROM THE SPECIMEN COMPARTMENT
- Performance evaluation of NiCo2O4 spinel as a catalyst for partial oxidation of methane
- SYNGAS PRODUCTION FROM CO2-REFORMING OF CH4 OVER SOL-GEL SYNTHESIZED Ni-Co/Al2O3-MgO-ZrO2 NANOCATALYST: EFFECT OF ZrO2 PRECURSOR ON CATALYST PROPERTIES AND PERFORMANCE
- Dry reforming of methane at moderate temperatures over modified Co-Al Co-precipitated catalysts
- Effect of High Temperature on Photosynthesis in Beans (II. CO2 Assimilation and Metabolite Contents).
