A kinetic study of the hydrogenation of benzene over monolithic-supported platinum catalyst

Characterization of the Structure and Catalytic Activity of Pt/Sepiolite Catalysts

“…Thus, the hydrogenation to benzene is negligible above a certain temperature. Similar results were obtained by other authours (32)(33)(34).…”

Behavior of highly dispersed platinum catalysts in liquid-phase hydrogenations

“…The apparent activation energies reported in the literature for the hydrogenation of benzene on supported platinum catalysts range from 29 to 113 kJ mol™1 (Parmaliana et al, 1983(Parmaliana et al, ,1984Konyukhov et al, 1985), which is in good agreement with our experimental results. The studies found in the literature report turnover frequencies for the hydrogenation of benzene on different supported platinum catalysts in the range 0.02-1.15 s™1 for experiments carried out in the gas phase, at temperatures from 298 to 383 K and atmospheric pressure (Basset et al, 1975;Chakrabarty et al, 1986;Guerin et al, 1988;Garetto and Apesteguia, 1983; Ryndin et al, 1986).…”

“…The benzene hydrogenation (Odenbrand and Lundin, 1980; Koopman, 1979) was carried out in a semicontinuous way: continuous for the hydrogen and discontinuous for the liquid reactants and the catalyst. The hydrogenation of benzene is generally considered as a "facile" reaction (Basset et al, 1975;Moss et al, 1979;Parmaliana et al, 1983). In any case, the catalysts have been prepared so that their crystallite size is almost constant (high dispersion, about Figure 2.…”

Density Functional Theory Analysis of Benzene (De)hydrogenation on Pt(111): Addition and Removal of the First Two H-Atoms

“…The hydrogenation of aromatic hydrocarbons as well as the dehydrogenation of cyclic alkanes and alkenes has received much attention. Classical kinetic studies have been performed for the hydrogenation of benzene, − toluene, ,− and other aromatic hydrocarbons, − yielding an array of different kinetic models and postulated mechanisms.…”