Resumo

DIMITRIJEWITS, M. I.; ARCIPRETE, C.; BECERRA, A. M.  e  CASTRO-LUNA, A.E.. REFORMADO DE METANO CON CO₂ SOBRE CATALIZADORES DE NIQUEL: EFECTOS DE LA TECNICA DE PREPARACION. Bol. Soc. Chil. Quím. [online]. 2001, vol.46, n.1, pp.65-75. ISSN 0366-1644.  http://dx.doi.org/10.4067/S0366-16442001000100011.

The effect of nickel/alumina catalyst preparation methods on its microstructure and catalytic activity for the reforming reaction of methane with carbon dioxide were systematically studied. Two series of three catalyst each one were prepared. For each series :a) two catalysts were prepared by adding the metal solution precursor in two different steps during the support preparation and b ) the third one by impregnation of that metal solution precursor on the alumina support previously prepared. The catalyst and/or catalysts precursors were characterized by x-ray diffraction (DRX), differential thermoanalysis (DTA/TG), nitrogen adsorption technique, scanning electron microscopy (SEM) and EDAX, and CO-chemisorption. Relations between catalysts preparation methods and CO₂ reforming catalytic activity were established

Palavras-chave : Carbon dioxide methane reforming; Ni/alumina catalysts; synthesis gas.