Abstract

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.

Details

Title
LHHW/RSM reaction rate modeling for Co-Mn/SiO2 nanocatalyst in Fishcher-Tropsch synthesis
Author
Azizi, Hamid Reza 1 ; Mansouri, Mohsen 2 ; Farshchi Tabrizi, Farshad 3 ; Mansouri, Ghobad 4 ; Setareshenas, Naimeh 2 

 Ilam University, Department of Chemical Engineering, Ilam, Iran (GRID:grid.411528.b) (ISNI:0000 0004 0611 9352); Ilam Gas Treating Company, Tajrian, Ilam Province, Iran (GRID:grid.411528.b) 
 Ilam University, Department of Chemical Engineering, Ilam, Iran (GRID:grid.411528.b) (ISNI:0000 0004 0611 9352) 
 Shiraz University, Department of Chemical Engineering, Shiraz, Iran (GRID:grid.412573.6) (ISNI:0000 0001 0745 1259) 
 Payame Noor University (PNU), Department of Chemistry, Tehran, Iran (GRID:grid.412462.7) (ISNI:0000 0000 8810 3346) 
Pages
13563
Publication year
2024
Publication date
2024
Publisher
Nature Publishing Group
e-ISSN
20452322
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
3067110046
Copyright
© The Author(s) 2024. This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.