Supported iron catalysts in Fischer-Tropsch synthesis: influence of the preparation method

Snel, Ruud

doi:10.1021/ie00090a002

Cited by 22 publications

(18 citation statements)

References 11 publications

(17 reference statements)

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“…Bimetallic Ni-Fe catalysts were tested in the CO methanation reaction for the production of substitute natural gas (SNG) under industrial (0.1-0.3 MPa) total methanation conditions to be adopted in processes related to the Fischer-Tropsch synthesis [232][233][234][235][236]. Thus, in [5] the activity of bimetallic Ni 3 Fe/γ-Al 2 O 3 was first compared with that of a reference Ni/γ-Al 2 O 3 under conditions of 3.0 MPa and H 2 /CO = 3.1.…”

Section: Nickel-iron-based Catalystsmentioning

confidence: 99%

Supported Catalysts for CO2 Methanation: A Review

et al. 2017

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CO 2 methanation is a well-known reaction that is of interest as a capture and storage (CCS) process and as a renewable energy storage system based on a power-to-gas conversion process by substitute or synthetic natural gas (SNG) production. Integrating water electrolysis and CO 2 methanation is a highly effective way to store energy produced by renewables sources. The conversion of electricity into methane takes place via two steps: hydrogen is produced by electrolysis and converted to methane by CO 2 methanation. The effectiveness and efficiency of power-to-gas plants strongly depend on the CO 2 methanation process. For this reason, research on CO 2 methanation has intensified over the last 10 years. The rise of active, selective, and stable catalysts is the core of the CO 2 methanation process. Novel, heterogeneous catalysts have been tested and tuned such that the CO 2 methanation process increases their productivity. The present work aims to give a critical overview of CO 2 methanation catalyst production and research carried out in the last 50 years. The fundamentals of reaction mechanism, catalyst deactivation, and catalyst promoters, as well as a discussion of current and future developments in CO 2 methanation, are also included.

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Section: Nickel-iron-based Catalystsmentioning

confidence: 99%

Supported Catalysts for CO2 Methanation: A Review

et al. 2017

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“…1 An alternative nonpetroleum-based lower olefin production method is via direct FT-to-olefins (FTO) route. [2][3][4] This route basically works the same way as in a conventional FT process, where the aim is mainly to obtain liquid fuels. However, in FTO process, not only a conventional FT catalyst is modified through different synthesis methods or through the introduction of different promoters but also process parameters are optimized in such a way to increase both lower olefin selectivity and olefin/paraffin (O/P) ratio in the products.…”

Section: Introductionmentioning

confidence: 99%

Kinetic modeling of Fischer–Tropsch‐to‐olefins process via advanced optimization

Turan

Ataç

Kurucu

et al. 2021

Int J of Chemical Kinetics

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The reaction kinetics of a Fischer–Tropsch (FT) process to produce lower olefins was modeled utilizing the experimental data produced using an in‐house synthesized iron‐based catalyst. Along with FT chain growth reaction that is assumed to follow alkyl mechanism, water–gas shift reaction was also taken into consideration due to its significance. Not only the rate constants but also apparent activation energies were obtained via an integrated approach utilizing multiobjective and constrained nonlinear minimization methods in order to define a model valid at a temperature range instead of a single point. The adaption of a hybrid optimization method utilizing both population‐ and individual‐based techniques enhanced prediction accuracy compared with the case where only multiobjective genetic algorithm is used. Thanks to the developed model, the effect of process parameters on product distribution was investigated. Finally, the kinetic model was compared with Anderson–Schulz–Flory model and the deviations observed were discussed.

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“…CH 4 ? H 2 O) has very important applications in various industrial processes, including ammonia synthesis, gasification of coal and Fischer-Tropsch synthesis [1][2][3][4]. This reaction even attracts ever-growing interest because it can be used to remove carbon monoxide from feed gas for fuel cell [5][6][7] and to convert biogas into methane [8,9].…”

Section: Introductionmentioning

confidence: 99%

“…Once carbon monoxide is dissociated, hydrogen then reacts with carbon from the dissociation to form CH and finally methane (CH 4 ). However, if the hydrogenation of carbon is slower than CO dissociation, the carbon will be aggregated into inactive carbon species, which induces a deactivation of the catalyst [10].…”

Section: Introductionmentioning

confidence: 99%

“…Obviously, the catalyst preparation or pretreatment methodologies will have a significant effect on the catalytic properties. Regarding this, many studies have been conducted with various catalyst preparation methods [4,[15][16][17][18][19][20][21][22]. For example, Snel [4] prepared three kinds of iron catalysts by impregnation, ion-exchange and coprecipitation, and observed different catalytic behaviors.…”

Section: Introductionmentioning

confidence: 99%

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Characterization of Silica Supported Nickel Catalyst for Methanation with Improved Activity by Room Temperature Plasma Treatment

Shi

Liu

2009

Catal Lett

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Room temperature glow discharge plasma was applied to treat the nickel precursor supported on SiO 2 . According to the catalyst characterization, the calcination thermally of the plasma treated sample shows small particle size and high dispersion. Such prepared sample presents high conversions of carbon monoxide and hydrogen for the reaction of methanation with a significantly improved anticarbon deposition performance. The plasma-treated sample shows enhanced metal-support interaction and keeps good dispersion after reaction.

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Supported iron catalysts in Fischer-Tropsch synthesis: influence of the preparation method

Cited by 22 publications

References 11 publications

Supported Catalysts for CO2 Methanation: A Review

Supported Catalysts for CO2 Methanation: A Review

Kinetic modeling of Fischer–Tropsch‐to‐olefins process via advanced optimization

Characterization of Silica Supported Nickel Catalyst for Methanation with Improved Activity by Room Temperature Plasma Treatment

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