INVESTIGADORES
VERA carlos Roman
artículos
Título:
Comparison between Ni and Pt promoted SO4-ZrO2 for n-octane hydroisomerization-cracking
Autor/es:
J.C. YORI; J.M. GRAU; V.M. BENITEZ; C.R. VERA; C.L. PIECK; J.M. PARERA
Revista:
CATALYSIS LETTERS
Editorial:
Springer Science
Referencias:
Lugar: Berlin, Germany; Año: 2005 vol. 100 p. 67 - 71
ISSN:
1011-372X
Resumen:
The production of C4C6 branched isoalkanes by isomerization-cracking of n-octane (300 C, 0.1 MPa) using sulfated zirconia catalysts was studied. The e.ect of Ni addition on the activity and selectivity was compared to the e.ect of Pt. Pt enhanced the activity and stability of the catalysts. Ni mainly improved the selectivity to isopara.ns (maximum yield at 1% Ni). n-Octane conversion fully correlated with total acidity. Average and .nal stable conversion values were in comparison lower for Ni catalysts. This result was addressed to the lower metal activity of Ni and to the detrimental e.ect of sulfated zirconia on the reducibility of the metal.4C6 branched isoalkanes by isomerization-cracking of n-octane (300 C, 0.1 MPa) using sulfated zirconia catalysts was studied. The e.ect of Ni addition on the activity and selectivity was compared to the e.ect of Pt. Pt enhanced the activity and stability of the catalysts. Ni mainly improved the selectivity to isopara.ns (maximum yield at 1% Ni). n-Octane conversion fully correlated with total acidity. Average and .nal stable conversion values were in comparison lower for Ni catalysts. This result was addressed to the lower metal activity of Ni and to the detrimental e.ect of sulfated zirconia on the reducibility of the metal.
