A comparison between two kinds of hydrodynamic models in bubble column slurry reactor during Fischer–Tropsch synthesis: Single-bubble class and two-bubble class

Abstract The catalytic slurry bubble column reactor (SBCR) has been proven to be a very effective reactor and is widely used in the chemical industries. In this study, by means of mathematical modeling of Fischer–Tropsch synthesis (FTS) in a bubble column slurry reactor, a comparison of single- and two-bubble class gas–liquid recirculation models was made. Detailed kinetics expressions for the FTS and water gas shift reactions have been considered. A selectivity model combined with slurry bubble column reactor hydrodynamics and the multicomponent vapour–liquid equilibrium (VLE) model have been applied to predict the distribution of olefins and paraffins in the products. The experimental results taken from the literature have been compared with simulation results from two mechanistic reactor models: single-bubble class and two-bubble class model, which indicates that in some operation conditions the two-bubble class model (TBCM) dose not present additional advantages over SBCM.

[1]  Rajamani Krishna,et al.  Modelling of a bubble column slurry reactor for Fischer Tropsch synthesis , 1999 .

[2]  F. Fernandes.  Modeling and Product Grade Optimization of Fischer−Tropsch Synthesis in a Slurry Reactor , 2006 .

[3]  R. Krishna,et al.  Simulation of the transient and steady state behaviour of a bubble column slurry reactor for Fischer–Tropsch synthesis , 2002 .

[4]  Rubens Maciel Filho,et al.  Dynamic modelling of a three-phase catalytic slurry reactor , 2001 .

[5]  Rajamani Krishna,et al.  Multicomponent reaction engineering model for Fe-catalyzed Fischer-Tropsch synthesis in commercial scale slurry bubble column reactors , 1999 .

[6]  Rajamani Krishna,et al.  Fundamentals and selection of advanced Fischer-Tropsch reactors , 1999 .

[7]  S. T. Sie,et al.  Selection, design and scale up of the Fischer-Tropsch reactor , 1997 .

[8]  B. Jager,et al.  Advances in low temperature Fischer-Tropsch synthesis , 1995 .

[9]  Evaristo C. Biscaia,et al.  A comprehensive mathematical model for the Fischer-Tropsch synthesis in well-mixed slurry reactors , 2005 .

[10]  Gang Wang,et al.  Modeling Analysis of the Fischer-Tropsch Synthesis in a Stirred-Tank Slurry Reactor , 2004 .

[11]  M. Duduković,et al.  Comparison of single- and two-bubble class gas–liquid recirculation models — application to pilot-plant radioactive tracer studies during methanol synthesis , 2001 .

[12]  Ying Liu,et al.  Modeling of the Fischer-Tropsch synthesis in slurry bubble column reactors , 2008 .

[13]  S. T. Sie,et al.  Selection, design and scale up of the Fischer Tropsch slurry reactor , 1997 .

[14]  Rajamani Krishna,et al.  Design and scale-up of the Fischer–Tropsch bubble column slurry reactor , 2000 .

[15]  Milorad P. Dudukovic,et al.  Modeling of the Fischer-Tropsch synthesis in slurry bubble column reactors , 2003 .

[16]  W. Deckwer,et al.  Modeling the Fischer-Tropsch synthesis in the slurry phase , 1982 .

[17]  B. Davis,et al.  Fischer-Tropsch synthesis over iron-based catalysts in a slurry reactor. Reaction rates, selectivities and implications for improving hydrocarbon productivity , 1997 .

[18]  G. V. D. Laan,et al.  Hydrocarbon selectivity model for the gas-solid Fischer-Tropsch synthesis on precipitated iron catalysts , 1999 .

[19]  J. Marano,et al.  Characterization of Fischer-Tropsch liquids for vapor-liquid equilibria calculations , 1997 .

[20]  O. Levenspiel.  Chemical Reaction Engineering , 1972 .