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Study of n-hexane isomerization on mixed Al2O3–ZrO2/SO4 catalysts |
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| Authors: | M. L. Guevara-Franco, S. Robles-Andrade, R. Garcí a-Alamilla, G. Sandoval-Robles,J. M. Domí nguez-Esquivel |
| Affiliation: | a División de Estudios de Posgrado, Instituto Tecnológico de Cd. Madero, J. Rosas y J. Urueta s/n, Col. Los Mangos, Cd. Madero, Tampico, Mexico b Programa de Simulación Molecular, Instituto Mexicano del Petróleo, Eje Cent. L. Cárdenas 152, México D.F., Mexico |
| Abstract: | Mixed oxides of alumina and zirconia having a relative composition of 50, 80 and 100% Zr2O were synthesized by means of sol–gel methods. The catalysts were sulfated with H2SO4 1N, and were loaded with 0.3% Pt metal using the incipient wetness technique. The characterization of the physicochemical properties was carried out using XRD, N2-adsorption at 78 K, and SEM. The catalytic properties of the Al2O3–ZrO2 series were studied by means of dehydration of 2-propanol at 180°C and isomerization of n-hexane at 250°C, 1 atm. The sulfated solids presented a high surface acidity and a limited crystallinity, together with high activity for alcohol dehydration (i.e. 2-propanol). On the other hand, the Al2O3–ZrO2 solid solutions (i.e. those having a 20–80% composition) turned out to be the most active ones for the isomerization of n-hexane. |
| Keywords: | Al2O3–ZrO2 n-Hexane Isomerization |
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