INVESTIGADORES
SANTORI Gerardo Fabian
artículos
Título:
Hydrogen production by glycerol steam reforming with Pt/SiO2 and Ni/SiO2
Autor/es:
FRANCISCO POMPEO; GERARDO F. SANTORI; NORA N. NICHIO
Revista:
CATALYSIS TODAY
Editorial:
ELSEVIER SCIENCE BV
Referencias:
Año: 2011 vol. 172 p. 183 - 188
ISSN:
0920-5861
Resumen:
Pt and Ni catalysts supported on SiO2 were prepared with different metal content in order to apply them in steam reforming of glycerol at temperatures between 350C and 450C.Conditions of temperature and space time that can provide the total conversion of glycerol togaseous products were found.Based on the identification of liquids or reaction intermediates, we found that Ni and Pt have the same reaction steps. Thus, a schematic representation of reaction pathways was proposed involving successive steps of dehydrogenation and CC bond cleavage, leading to H2 and CO.The different levels of conversion, selectivity and stability of catalysts were analyzed. Pt catalysts were more active and stable than Ni catalysts. Ni catalysts showed differences in the selectivity to gaseous products due to the increased contribution of the WGS reaction.The Pt catalysts have shown a total conversion to gaseous products at 450C, without deactivation during the 40 reaction hours.
