Synthesis gas conversion on carbon supported iron catalysts and the nature of deactivation

Sommen, Apb; Stoop, F.; Wiele, van der K Kees

doi:10.1016/s0166-9834(00)84360-2

Cited by 37 publications

(28 citation statements)

References 15 publications

(1 reference statement)

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“…[121][122][123][124] Unfortunately, the FT specific activity decreased with reducing iron crystallite size and iron metal loading in the Fe/C system. [121][122][123][124] Unfortunately, the FT specific activity decreased with reducing iron crystallite size and iron metal loading in the Fe/C system.…”

Section: Porous Nanocarbon Materialsmentioning

confidence: 99%

“…Some early investigations in the 1980s demonstrated that iron with high dispersion on porous carbon materials displayed moderate activity and relatively high stability at 100 kPa for the FT reaction. [121][122][123][124] Unfortunately, the FT specific activity decreased with reducing iron crystallite size and iron metal loading in the Fe/C system. [122,123] It is believed that the presence of micropores in the carbon support was responsible for the decrease in the activity of the FT catalyst.…”

Section: Porous Nanocarbon Materialsmentioning

confidence: 99%

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Fischer–Tropsch Reaction on a Thermally Conductive and Reusable Silicon Carbide Support

et al. 2014

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The Fischer-Tropsch (FT) process, in which synthesis gas (syngas) derived from coal, natural gas, and biomass is converted into synthetic liquid fuels and chemicals, is a strongly exothermic reaction, and thus, a large amount of heat is generated during the reaction that could severely modify the overall selectivity of the process. In this Review, we report the advantages that can be offered by different thermally conductive supports, that is, carbon nanomaterials and silicon carbide, pure or doped with different promoters, for the development of more active and selective FT catalysts. This Review follows a discussion regarding the clear trend in the advantages and drawbacks of these systems in terms of energy efficiency and catalytic performance for this most-demanded catalytic process. It is demonstrated that the use of a support with an appropriate pore size and thermal conductivity is an effective strategy to tune and improve the activity of the catalyst and to improve product selectivity in the FT process. The active phase and the recovery of the support, which also represents a main concern in terms of the large amount of FT catalyst used and the cost of the active cobalt phase, is also discussed within the framework of this Review. It is expected that a thermally conductive support such as β-SiC will not only improve the development of the FT process, but that it will also be part of a new support for different catalytic processes for which high catalytic performance and selectivity are strongly needed.

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Section: Porous Nanocarbon Materialsmentioning

confidence: 99%

Section: Porous Nanocarbon Materialsmentioning

confidence: 99%

Fischer–Tropsch Reaction on a Thermally Conductive and Reusable Silicon Carbide Support

et al. 2014

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“…On the other hand, weak interacting support (e.g. activated carbon) may exhibit rapid deactivation which can be due to iron sintering, formation of graphitic carbon, and other phenomena [22,23].…”

Section: Introductionmentioning

confidence: 99%

Pore size effects in high-temperature Fischer–Tropsch synthesis over supported iron catalysts

Cheng

Virginie

Ordomsky

et al. 2015

Journal of Catalysis

164

104

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“…11, 13, 14 Data on carbon deposition rates obtained under actual FTS conditions are relatively few and are mostly based on ex situ analysis of catalyst samples 10. 15 Obtaining in situ carbon deposition rates under FTS conditions poses a great practical challenge, as the use of a microbalance is usually restricted to atmospheric conditions 16…”

mentioning

confidence: 99%

Suppression of Carbon Deposition in the Iron‐Catalyzed Production of Lower Olefins from Synthesis Gas

et al. 2012

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Pressure leverage: A tapered-element oscillating microbalance was used to evaluate carbon deposition on a highly selective and active supported iron catalyst for the production of lower olefins. With increasing pressure, the H(2)/CO ratio had a profound effect on the carbon deposition rate and accordingly, conditions leading to minimal carbon deposition, low methane selectivity, and high olefin selectivity were identified.

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Synthesis gas conversion on carbon supported iron catalysts and the nature of deactivation

Cited by 37 publications

References 15 publications

Fischer–Tropsch Reaction on a Thermally Conductive and Reusable Silicon Carbide Support

Fischer–Tropsch Reaction on a Thermally Conductive and Reusable Silicon Carbide Support

Pore size effects in high-temperature Fischer–Tropsch synthesis over supported iron catalysts

Suppression of Carbon Deposition in the Iron‐Catalyzed Production of Lower Olefins from Synthesis Gas

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