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

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).…”

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).…”

Kinetic Study of Naphthalene Hydrogenation over Pt/Al2O3 Catalyst

“…Activation energies of some aromatic compounds on different catalysts have been reported and listed in Table 5, but the data about tetralin have not been found in the literature. The apparent activation energies for the hydrogenation of benzene on supported platinum catalysts reported in the literature range from 7 to 27 kcal/mol (Parmaliana et al, 1984). Bassel et al (1975) T h i s c o n t e n t i s found that the apparent activation energy was 9.5 ± 0.5 kcal/mol independent of the preparation methods of the Pt/AIaOs catalysts.…”

Structured catalysts for non-adiabatic applications

“…In a pioneering piece of work, for example, Tucci and Thomson [3] carried out a comparative study of methanation over ruthenium catalysts both in pellet and in honeycomb form: in addition to pressure drops lower by two orders of magnitude they found also significantly higher selectivities over the monolith catalyst, likely resulting from lower internal diffusional resistances. Parmaliana and coworkers [4][5][6][7] investigated the hydrogenation of benzene and dehydrogenation of cyclohexane in ceramic monoliths washcoated with alumina impregnated with either Ni or Pt: again, the low diffusional resistances in monolith catalysts enabled the authors to determine intrinsic Eley-Rideal rate expressions.…”

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).…”

Kinetic Study of Naphthalene Hydrogenation over Pt/Al2O3 Catalyst

“…Activation energies of some aromatic compounds on different catalysts have been reported and listed in Table 5, but the data about tetralin have not been found in the literature. The apparent activation energies for the hydrogenation of benzene on supported platinum catalysts reported in the literature range from 7 to 27 kcal/mol (Parmaliana et al, 1984). Bassel et al (1975) T h i s c o n t e n t i s found that the apparent activation energy was 9.5 ± 0.5 kcal/mol independent of the preparation methods of the Pt/AIaOs catalysts.…”

Structured catalysts for non-adiabatic applications

“…In a pioneering piece of work, for example, Tucci and Thomson [3] carried out a comparative study of methanation over ruthenium catalysts both in pellet and in honeycomb form: in addition to pressure drops lower by two orders of magnitude they found also significantly higher selectivities over the monolith catalyst, likely resulting from lower internal diffusional resistances. Parmaliana and coworkers [4][5][6][7] investigated the hydrogenation of benzene and dehydrogenation of cyclohexane in ceramic monoliths washcoated with alumina impregnated with either Ni or Pt: again, the low diffusional resistances in monolith catalysts enabled the authors to determine intrinsic Eley-Rideal rate expressions.…”

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).…”

Kinetic Study of Naphthalene Hydrogenation over Pt/Al2O3 Catalyst

“…Activation energies of some aromatic compounds on different catalysts have been reported and listed in Table 5, but the data about tetralin have not been found in the literature. The apparent activation energies for the hydrogenation of benzene on supported platinum catalysts reported in the literature range from 7 to 27 kcal/mol (Parmaliana et al, 1984). Bassel et al (1975) T h i s c o n t e n t i s found that the apparent activation energy was 9.5 ± 0.5 kcal/mol independent of the preparation methods of the Pt/AIaOs catalysts.…”

Structured catalysts for non-adiabatic applications

“…In a pioneering piece of work, for example, Tucci and Thomson [3] carried out a comparative study of methanation over ruthenium catalysts both in pellet and in honeycomb form: in addition to pressure drops lower by two orders of magnitude they found also significantly higher selectivities over the monolith catalyst, likely resulting from lower internal diffusional resistances. Parmaliana and coworkers [4][5][6][7] investigated the hydrogenation of benzene and dehydrogenation of cyclohexane in ceramic monoliths washcoated with alumina impregnated with either Ni or Pt: again, the low diffusional resistances in monolith catalysts enabled the authors to determine intrinsic Eley-Rideal rate expressions.…”