1989
DOI: 10.1002/cjce.5450670110
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Studies of the fischer‐tropsch synthesis on a cobalt catalyst II. Kinetics of carbon monoxide conversion to methane and to higher hydrocarbons

Abstract: Six Langmuir-Hinshelwood-Hougen-Watson models have been derived for the kinetics of conversion of carbon monoxide to hydrocarbons in the Fischer-Tropsch synthesis. The models were fitted to experimental data obtained in an internal recycle reactor over a wide range of operating conditions. Two models, one based on the hydrogenation of surface carbon and the other on a hydrogen-assisted dissociation of carbon monoxide as rate limiting steps were both able to provide a satisfactory fit to the experimental rate d… Show more

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Cited by 114 publications
(85 citation statements)
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“…The aim of this new kinetic model is to be able to predict selectivity (paraffin and olefin distributions) forvarious operating conditions (pressure, temperature, GHSV (Gas Hourly Space Velocity) and H 2 /CO). The new simulator is able to plug both kinetic models: -one based on Sarup and Wojciechowski (1989) description for CO conversion with an imposed selectivity for paraffins and olefins using an Anderson-Schultz-Flory distribution; Relative rate of fines formation for three different catalysts, as obtained in the Sannazzaro slurry bubble column pilot plant and in the LVT.…”
Section: Simulation Of the Fischer-tropsch Unitmentioning
confidence: 99%
See 1 more Smart Citation
“…The aim of this new kinetic model is to be able to predict selectivity (paraffin and olefin distributions) forvarious operating conditions (pressure, temperature, GHSV (Gas Hourly Space Velocity) and H 2 /CO). The new simulator is able to plug both kinetic models: -one based on Sarup and Wojciechowski (1989) description for CO conversion with an imposed selectivity for paraffins and olefins using an Anderson-Schultz-Flory distribution; Relative rate of fines formation for three different catalysts, as obtained in the Sannazzaro slurry bubble column pilot plant and in the LVT.…”
Section: Simulation Of the Fischer-tropsch Unitmentioning
confidence: 99%
“…The kinetic rate has the same formalism as the kinetic model developed by Sarup and Wojciechowski (1989), which considers a rate-determining step (first hydrogen addition to carbon). Alcohol selectivities are determined using an Anderson-Schultz-Flory distribution adjusting a corresponding chain length growth parameter.…”
Section: Fischermentioning
confidence: 99%
“…There are many kinetic models in the literature (Yates and Satterfield, 1991;Sarup et al, 1989). It appears that the kinetic rate follows the SarupWojciechowski kinetic model.…”
Section: Kineticsmentioning
confidence: 99%
“…and .CH 2 .) and water (OH) since they are not occupying a significant part of the active sites and their desorption rate is much higher than the other species 4,15 . Based on the previous assumptions, eq.…”
Section: Kinetics Of the Reaction In The Supercriticalmentioning
confidence: 99%
“…For the elimination of the infinite sum in eq 5, we assumed that at steady state the initiation rate of the polymerization process should balance its termination rate 5,15 . Therefore, a mass balance around the methyl (CH 3 .S or R1) initiation rate (3rd reaction in stage 3) and termination rate (to methane stage 4 or paraffins as included in stage 5) is sufficient for the determination of the infinite sum as seen in eq 6.…”
Section: Kinetics Of the Reaction In The Supercriticalmentioning
confidence: 99%