Liquid-phase hydrogenation kinetics of isooctenes on Co/SiO2

Kinetics of liquid‐phase hydrogenation of isooctenes on a Pd/γ‐alumina catalyst

“…Findings in the present research that 2‐TMP has higher overall reactivity than that of 1‐TMP and double‐bond isomerization plays a significant role during hydrogenation are in contrast to the results reported by Lylykangas et al6–8 using Ni/Al 2 O 3 , Co/SiO 2 , and Pt/Al 2 O 3 catalyst. The most likely explanation for observing significant isomerization can be attributed to the fact that the extent of double‐bond isomerization varies with the nature of the catalyst and decreases in the order: Pd > Ni > Rh > Ru > Os ≈ Ir ≈ Pt 24, 32.…”

“…Severe catalyst deactivation through the formation of carbonaceous deposits was observed when Pt/Al 2 O 3 catalysts were used. The maximum conversion of isooctenes on Ni/Al 2 O 3 catalyst under the conditions studied was 45% and the activity of the Co/SiO 2 catalyst was found to be considerably lower than that of the Ni/Al 2 O 3 catalyst 7. Although catalyst deactivation during the experiments was observed for all the catalysts mentioned above, Ni/Al 2 O 3 showed the highest activity with the least deactivation by coke deposition.…”

“…The activity of the hydrogenation catalyst in a CD column reactor should be high enough to achieve almost complete hydrogenation of isooctene; otherwise, the octane number of the final product would be <100. The kinetics of hydrogenation of isooctenes on commercial catalysts such as Ni/Al 2 O 3 , Co/SiO 2 , and Pt/Al 2 O 3 has been reported 6–8. Severe catalyst deactivation through the formation of carbonaceous deposits was observed when Pt/Al 2 O 3 catalysts were used.…”

Catalysis in the Upgrading of Fischer–Tropsch Syncrude

“…Its two main applications are the HYD of the products from OLI and HYD of straight run syncrude (in conjunction with partial HDO) to produce transportation fuels. 532,538,541,542 Without HYD, specifications such as bromine number, acid number and oxidation stability of the final fuel products cannot not be met. 6.…”

Reduction of Polymer Waste Pyrolysis Fractions over Pt/Al2O3with Methanol Decomposition Hydrogen to Obtain Fuel-Grade Hydrocarbons

“…This is due to the possibility of application of the hydrogenated products as additives to fuels [8]. Isooctane, for example, obtained in the hydrogenation of isooctenes over Co/SiO 2 has been found to be an adequate substitute to MTBE [9]. Studies, therefore, on the hydrogenation of unsaturated hydrocarbons obtained after pyrolysis of waste polymers to their saturated counterparts as potential blending material or additives to fuel are justified.…”