Effect of the support on the selective hydrogenation of benzene over ruthenium catalysts. 1. Al2O3 and SiO2

VANINA MAZZIERI, NORA FÝGOLI, FERNANDO-COLOMA PASCUAL, AND PABLO L’ARGENTIERE

CATALYSIS LETTERS

Baltzer Science Publishers

Lugar: Postbus 221, 1400 AE Bussum, The Netherlands; Año: 2005 vol. 102 p. 79 - 82

1011-372X

The effect of the support on the liquid phase selective hydrogenation of benzene to cyclohexene over Ru catalysts was studied. Catalysts were prepared using RuCl3 as precursor and characterized by hydrogen chemisorption, XPS and TPR. The reaction was carried out at 373 K and 2 MPa using a stirred tank reactor. It was found that the catalytic activity is not in.uenced by the Ru dispersion. More electron-de.cient Ru species are present on Al2O3 than on SiO2. The electronic state of Ru a.ects the selectivity to cyclohexene.3 as precursor and characterized by hydrogen chemisorption, XPS and TPR. The reaction was carried out at 373 K and 2 MPa using a stirred tank reactor. It was found that the catalytic activity is not in.uenced by the Ru dispersion. More electron-de.cient Ru species are present on Al2O3 than on SiO2. The electronic state of Ru a.ects the selectivity to cyclohexene.2O3 than on SiO2. The electronic state of Ru a.ects the selectivity to cyclohexene.