Reaction Kinetics, Mechanisms and Catalysis

, Volume 128, Issue 1, pp 217–234 | Cite as

The impact of different alumina supports on cobalt-catalyzed Fischer–Tropsch synthesis and investigation of kinetic model for the catalyst with optimum performance

  • Sophia Mohammadnasabomran
  • Ahmad TavasoliEmail author
  • Yahya Zamani


This study investigated three different types of catalysts: (i) Co/Al2O3–FSM16, (ii) Co/synthesized mesoporous Al2O3, and (iii) Co/conventional mesoporous Al2O3 prepared by incipient wetness impregnation of the cobalt precursor and used in Fischer–Tropsch synthesis (FTS). The obtained catalysts were characterized by ICP-MS, XRD, H2-TPR, BET, TEM and H2 chemisorption techniques. The results of characterizations clearly showed the changes of morphology of the supports. The catalyst were tested in a fixed bed reactor under realistic conditions. The results showed that, the highest pore volume and the smallest cobalt particles size related to synthesized mesoporous Al2O3 and Co/synthesized mesoporous Al2O3. However, Co/Al2O3–FSM16 indicated the narrowest particles size range (2–26 nm). The catalysts activity and selectivity tests showed that the proposed Co/Al2O3–FSM16 increased the FTS rate from 0.13 to 0.18 g HC/gcat./h. In addition, C5+ selectivity increased up to 9%. On the other hand, ALSM decreased the CO conversion by 7%. Kinetic data were measured for Fischer–Tropsch synthesis (FTS) on Co/Al2O3–FSM16 at various partial pressures of CO and H2 and at three different temperatures (210, 220 and 230 °C) and pressures (12, 16 and 20 bar). The results of modeling showed that Percentage of data that has absolute relative residual (ARR) less than 25 (P25%) is 67%.


Fischer–Tropsch synthesis Al2O3–FSM16 Synthesized mesoporous Al2O3 Activity Selectivity Kinetic modeling 


Supplementary material

11144_2019_1634_MOESM1_ESM.docx (379 kb)
Supplementary material 1 (DOCX 379 kb)


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Copyright information

© Akadémiai Kiadó, Budapest, Hungary 2019

Authors and Affiliations

  • Sophia Mohammadnasabomran
    • 1
  • Ahmad Tavasoli
    • 1
    Email author
  • Yahya Zamani
    • 2
  1. 1.School of Chemistry, College of ScienceUniversity of TehranTehranIran
  2. 2.Research Institute of Petroleum Industry (RIPI)National Iranian Oil CompanyTehranIran

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