INVESTIGADORES
AMADEO Norma Elvira
congresos y reuniones científicas
Título:
Synthesis gas production from glycerol steam reforming. Ni-Mg/ɣ-Al2O3 catalysts, effect of magnesium content.
Autor/es:
MARIA L DIEUZEIDE; MATIAS JOBBAGY; NORMA AMADEO
Lugar:
Madrid
Reunión:
Congreso; Catalysis for Clean Energy and Sustainable Chemistry; 2012
Institución organizadora:
Instituto de Catalisis y Petroleoquimica
Resumen:
In the last years the production of synthesis gas and hydrogen from glycerol steam reforming is being considered as a viable alternative in order to increase the profitability of the oils transesterification process for the production of biodiesel [1-4]. The global reaction that describes the steam reforming of glycerol is: C_3 H_8 O_3+3H_2 O↔3〖CO〗_2+7H_2 which is strongly endothermic.
Catalysts based on nickel are widely used for the steam reforming of hydrocarbons and alcohols [4-6]. However, nickel catalysts supported on ɣ-Al2O3 are deactivated in this process as a consequence of: carbon formation over the acid sites of alumina and by sintering of the metallic phase due to the low thermal stability of alumina [3]. In order to minimize the deactivation of the catalyst, the promotion of the support with an alkaline earth metal (MgO, CaO,
) is proposed since they favour the steam adsorption capacity, the thermal stability of Ni and confer some basic character to the support.[7-8]
The aim of this study is to analyse the effect of Mg content on the Ni/ɣ-Al2O3 catalysts over the activity, yield to gaseous products and carbon formation for the steam reforming of glycerol.