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Nickel catalyst supported on magnesium and zinc aluminates (MgAl2O4 and ZnAl2O4) spinels for dry reforming of methane

Abstract Materials such as MgAl2O4 and ZnAl2O4 assessed in the reaction of dry reforming of methane to produce syngas were synthesized by microwave-assisted combustion method using urea as fuel. Samples of synthesized oxides were calcined at 800 °C for 2 h and impregnated with 5% nickel. The impregn...

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Bibliographic Details
Published in:Cerâmica 2017-03, Vol.63 (365), p.77-81
Main Authors: Araújo, L. C. B. de, Melo, D. M. de A., Melo, M. A. de F., Barros, J. M. de F., Braga, R. M., Costa, C. de C., Rodrigues, G.
Format: Magazinearticle
Language:English
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Summary:Abstract Materials such as MgAl2O4 and ZnAl2O4 assessed in the reaction of dry reforming of methane to produce syngas were synthesized by microwave-assisted combustion method using urea as fuel. Samples of synthesized oxides were calcined at 800 °C for 2 h and impregnated with 5% nickel. The impregnated samples were calcined at 850 °C for 4 h to obtain the desired phases. The results of the catalytic tests showed that the catalysts are active for the reaction of dry reforming of methane, and the catalyst that showed the best performance for methane conversion was 5% Ni/MgAl2O4 calcined at 850 °C/4 h. Resumo Materiais, tais como MgAl2O4 e ZnAl2O4, avaliados em reações de reforma a seco de metano para produzir gás de síntese foram sintetizados pelo método de combustão assistida por micro-ondas usando ureia como combustível. As amostras dos óxidos sintetizados foram calcinadas a 800 °C durante 2 h e impregnadas com 5% de níquel. As amostras impregnadas foram calcinadas a 850 °C durante 4 h para se obter as fases desejadas. Os resultados dos testes catalíticos mostraram que os catalisadores são ativos para as reações de reforma a seco de metano, e o catalisador que mostrou o melhor desempenho para a capacidade de conversão de metano foi 5% de Ni/MgAl2O4 calcinado a 850 °C/4 h.
ISSN:0366-6913
1678-4553
0366-6913
DOI:10.1590/0366-69132017633652056