Kinetic modeling of Fischer–Tropsch synthesis in the presence of Sn promoted Co/γ-Al2O3 catalyst

Pordeli, Fereshteh; Zohdi, Seyyed Hossein; Mirzaei, Ali Akbar; Ghofran Pakdel, Maliheh

doi:10.1007/s43153-023-00409-9

Cited by 1 publication

(1 citation statement)

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“…Kinetic modeling accurately represents the sequence and rate of various chemical reactions occurring at a catalyst's surface. Pordeli et al 12 explored the role of tin as a promoter for in enhancing kinetic parameters and mechanism of Fischer–Tropsch synthesis using Co/γ-Al 2 O 3 as catalyst. The catalytic systems mechanism was founded on the enol reaction, with CO species adsorbed molecularly and H 2 adsorbed dissociatively or associatively on the surface.…”

Section: Introductionmentioning

confidence: 99%

LHHW/RSM reaction rate modeling for Co-Mn/SiO2 nanocatalyst in Fishcher-Tropsch synthesis

Azizi,

Mansouri,

Farshchi Tabrizi

et al. 2024

Sci Rep

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This study aims to assess the kinetics of Fischer–Tropsch (FT) reaction over the cobalt-manganese nanoparticles supported by silica oxide. Nanoparticles were synthesized by the thermal decomposition method using "[Co(NH3)4CO3]MnO4" complex and characterized by XRD, TEM, and BET techniques. The kinetics of the process were evaluated using a combination of Langmuir–Hinshelwood-Hougen-Watson (LHHW) and response surface methodology. Correlation factors of 0.9902 and 0.962 were obtained for the response surface method (RSM) and LHHW, respectively. The two methods were in good agreement, and the results showed that the rate-determining step was the reaction of the adsorbed methylene with the adsorbed hydrogen atom, and only carbon monoxide molecules were the most active species on the catalyst surface. A temperature of 502.53 K and a CO partial pressure of 2.76 bar are proposed as the optimal conditions by RSM analysis. The activation energy of CO consumption reaction was estimated to be 61.06 kJ/mol.

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Section: Introductionmentioning

confidence: 99%