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Multiscale and Multiphase Model of Fixed Bed Reactors for Fischer–Tropsch Synthesis: Intensification Possibilities Study

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Faculty of Technology and Metallurgy, University of Belgrade, Karnegijeva 4, Belgrade 11000, Serbia
Chemical Engineering Program, Texas A&M University at Qatar, P.O. Box 23874, Doha, Qatar
§ Artie McFerrin Department of Chemical Engineering, Texas A&M University, MS 3122, College Station, Texas 77843-3122, United States
*E-mail: [email protected]. Tel.: +381113303652.
Cite this: Ind. Eng. Chem. Res. 2017, 56, 36, 9964–9979
Publication Date (Web):August 15, 2017
Copyright © 2017 American Chemical Society

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    Abstract Image

    A multiphase fixed-bed reactor (FBR) model for Fischer–Tropsch Synthesis has been developed. A high level of details is considered for description of the phenomena on the reactor and particle scale. Detailed kinetics is used, with parameters estimated from experiments with a cobalt-based catalyst. Model robustness has been validated using literature data. Performance analysis was made for a conventional scale FBR with egg-shell distribution of catalyst and a millimeter-scale FBR with small particles and uniform distribution. In both cases, diffusion limitations are almost eliminated due to use of small diffusion lengths. For similar qualitative results, a milli-scaled design would result in a significantly lower reactor volume, but the capital costs could be high due to large wall area and a vast number of tubes. Heat removal is efficient in both cases, and pressure drop in the milli-scale reactor is low due to the use of a shorter bed and lower velocity.

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    The Supporting Information is available free of charge on the ACS Publications website at DOI: 10.1021/acs.iecr.7b02467.

    • Properties from equation of state (EOS); interfacial mass and heat transfer coefficients; intraparticle diffusion and conduction; overall heat transfer coefficient (to reactor tube wall); drag forces; equilibrium and Henry’s constants and activity coefficients; reaction rates, Tables S1, S2 (PDF)

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    Cited By

    This article is cited by 16 publications.

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    2. Jorge L. Barrera, Joseph J. Hartvigsen, Michele Hollist, Jenna Pike, Ainsley Yarosh, Nicholas P. Fullilove, Victor A. Beck. Design optimization of integrated cooling inserts in modular Fischer-Tropsch reactors. Chemical Engineering Science 2023, 268 , 118423.
    3. Nafeezuddin Mohammad, Chiemeka Chukwudoro, Sujoy Bepari, Omar Basha, Shyam Aravamudhan, Debasish Kuila. Scale-up of high-pressure F-T synthesis in 3D printed stainless steel microchannel microreactors: Experiments and modeling. Catalysis Today 2022, 397-399 , 182-196.
    4. Alejo Aguirre, Esther Scholman, John van der Shaaf, M. Fernanda Neira d'Angelo. Controlling the selectivity in the Fischer-Tropsch synthesis using foam catalysts: An integrated experimental and modeling approach. Chemical Engineering Journal 2021, 409 , 128139.
    5. Alejo Aguirre, M. Fernanda Neria d'Angelo. The role of vapor-liquid equilibria during the Fischer-Tropsch Synthesis: A modeling study. Chemical Engineering Science 2021, 233 , 116394.
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    7. Michela Martinelli, Muthu Kumaran Gnanamani, Steve LeViness, Gary Jacobs, Wilson D. Shafer. An overview of Fischer-Tropsch Synthesis: XtL processes, catalysts and reactors. Applied Catalysis A: General 2020, 608 , 117740.
    8. Aya E. Abusrafa, Mohamed S. Challiwala, Benjamin A. Wilhite, Nimir O. Elbashir. Thermal Assessment of a Micro Fibrous Fischer Tropsch Fixed Bed Reactor Using Computational Fluid Dynamics. Processes 2020, 8 (10) , 1213.
    9. Dragomir B. Bukur, Miloš Mandić, Branislav Todić, Nikola Nikačević. Pore diffusion effects on catalyst effectiveness and selectivity of cobalt based Fischer-Tropsch catalyst. Catalysis Today 2020, 343 , 146-155.
    10. Nikola Nikačević, Branislav Todić, Miloš Mandić, Menka Petkovska, Dragomir B. Bukur. Optimization of forced periodic operations in milli-scale fixed bed reactor for Fischer-Tropsch synthesis. Catalysis Today 2020, 343 , 156-164.
    11. Aya E. Abusrafa, Mohamed S. Challiwala, Hanif A. Choudhury, Benjamin A. Wilhite, Nimir O. Elbashir. Experimental verification of 2-dimensional computational fluid dynamics modeling of supercritical fluids Fischer Tropsch reactor bed. Catalysis Today 2020, 343 , 165-175.
    12. Tomás Cordero-Lanzac, Andrés T. Aguayo, Pedro Castaño, Javier Bilbao. Kinetics and reactor modeling of the conversion of n -pentane using HZSM-5 catalysts with different Si/Al ratios. Reaction Chemistry & Engineering 2019, 4 (11) , 1922-1934.
    13. Cornelius Mduduzi Masuku, Lorenz T Biegler. Recent advances in gas-to-liquids process intensification with emphasis on reactive distillation. Current Opinion in Chemical Engineering 2019, 25 , 95-100.
    14. Miloš Mandić, Vladimir Dikić, Menka Petkovska, Branislav Todić, Dragomir B. Bukur, Nikola M. Nikačević. Dynamic analysis of millimetre-scale fixed bed reactors for Fischer-Tropsch synthesis. Chemical Engineering Science 2018, 192 , 434-447.
    15. Mohamed Sufiyan Challiwala, Benjamin A. Wilhite, Mohammed M. Ghouri, Nimir O. Elbashir. Multidimensional modeling of a microfibrous entrapped cobalt catalyst Fischer‐Tropsch reactor bed. AIChE Journal 2018, 64 (5) , 1723-1731.
    16. Branislav Todic, Milos Mandic, Nikola Nikacevic, Dragomir B. Bukur. Effects of process and design parameters on heat management in fixed bed Fischer-Tropsch synthesis reactor. Korean Journal of Chemical Engineering 2018, 35 (4) , 875-889.

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