Recent advances in cobalt-based Fischer-Tropsch synthesis catalysts

Suo, Yujun; Yao, Yali; Zhang, Yusheng; Xing, Sijia; Yuan, Zhong‐Yong

doi:10.1016/j.jiec.2022.08.026

Cited by 32 publications

(15 citation statements)

References 221 publications

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“…The promoters contribute to the effective reduction of cobalt to cobalt metal and to the favorable distribution of the metal on the support. 9, 156,256,268,271 Catalysts with high performance and long service life.…”

Section: Comentioning

confidence: 99%

An Overview of Low-Temperature Fischer–Tropsch Synthesis: Market Conditions, Raw Materials, Reactors, Scale-Up, Process Intensification, Mechanisms, and Outlook

Apolinar-Hernández,

Bertoli,

Riella

et al. 2023

Energy Fuels

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The Fischer−Tropsch technology has allowed, since its emergence a century ago, the production of stable liquid fuels from different raw materials in different geographic scenarios that do not necessarily have oil reserves. Some of these raw materials can generate high-quality fuels with a lower content of sulfur, aromatic, and heterocyclic compounds. The scaling and intensification of the reactors are essential factors in this context, and important challenges such as energy transfer due to the highly exothermic reaction, hydrodynamics due to limited information on pilot-scale in a reasonable range of conditions, or reducing CH 4 selectivity while maintaining high conversion through catalyst design, must be considered. This perspective provides an overview of recent developments in industrial-scale low-temperature Fischer−Tropsch reactors, with a focus on the significance of microchannel reactors in the scale-up process. The advancement in the Fischer−Tropsch synthesis is discussed, with an emphasis on the carbide and CO insertion mechanisms, as well as the socio-political-economic factors that continue to impact the development of this technology.

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Section: Comentioning

confidence: 99%

An Overview of Low-Temperature Fischer–Tropsch Synthesis: Market Conditions, Raw Materials, Reactors, Scale-Up, Process Intensification, Mechanisms, and Outlook

Apolinar-Hernández,

Bertoli,

Riella

et al. 2023

Energy Fuels

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“…Recent research has gradually focused on modifying TiO 2 by co-doping with anions and cations, such as Sm-N [1], Zr-I [2], Fe-N [3], et al Among the many metal ions, cobalt-based catalysts have been widely used in Fischer-Tropsch synthesis [4], while they are almost absent in sol-gels. Previous studies have demonstrated that intermediate interactions among cobalt precursors support the most promising route for synthesizing supported cobalt catalysts [5]. Moreover, fullerenes (C60) have good electron transfer properties, which can accelerate light-induced charge separation and slow down charge recombination [6].…”

Section: ． Introductionmentioning

confidence: 99%

Study on the improvement of photocatalytic performance by codoping of cobalt and fullerene with nano-titanium dioxide

Zhang,

Wei,

Liu

2024

Ninth International Conference on Energy Materials and Electrical Engineering (ICEMEE 2023)

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Preparation of cobalt nanoparticles and fullerene Co-doped TiO 2 particles (Co-C60/TiO 2 ) by sol-gel method with titanium n-butoxide (TNB) to enhance the visible light photocatalytic performance TEM and BET results confirm that the Co-C60/TiO 2 nanoparticles have relatively small particle size and homogeneous structure. Under the irradiation halogentungsten lamp at the wavelength of 617 nm, the removal efficiency of malachite green degradation decomposition on Co-C 60 /TiO 2 catalysts reached 78%. In our experiments, the optimal cobalt doping was 0.05% to achieve maximum photocatalytic degradation, and the samples calcined at 500 °C had the best reactivity.

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“…In this sense, the choice of a suitable catalyst (in terms of activity, selectivity toward deep oxidation products, and stability) is essential. Bulk transition-metal oxides, especially Mn, Cu, Fe, or Co oxides, have been extensively applied in Cl-VOC oxidation as a result of their notable catalytic activity and low cost compared with noble metal catalysts. − Particularly, cobalt-based catalysts have exhibited excellent results in several catalytic processes related to environmental protection. − The high catalytic activity of this oxide is attributed to its high bulk oxygen mobility, surface area, abundant defects, and the easy formation of highly active oxygen vacancies. , However, these oxides present some drawbacks such as its slow oxidation–reduction and a high chlorination activity . To overcome these problems, incorporation of controlled amounts of promoters may be applied. , Noble metals are considered as a good alternative since the amount to be used as a promoter is eventually small, which would not make the catalyst much more expensive.…”

Section: Introductionmentioning

confidence: 99%

Promotion of Cobalt Oxide Catalysts by Acid-Etching and Ruthenium Incorporation for Chlorinated VOC Oxidation

Gil-Barbarin,

Gutiérrez-Ortiz,

López-Fonseca

et al. 2024

Ind. Eng. Chem. Res.

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In this work, Ru-promoted cobalt oxide catalysts with a nanotube morphology were prepared by a synthesis route based on the Kirkendall effect followed by an acid treatment and subsequent optimized Ru impregnation. The resulting samples were thoroughly characterized by means of N 2 physisorption, X-ray energy-dispersive spectroscopy, X-ray diffraction, scanning electron microscopy techniques, X-ray photoelectron spectroscopy, and temperature-programmed techniques (O 2 -temperature-programmed desorption, H 2 -temperature-programmed reduction, and temperature-programmed oxidation) and evaluated in the gas-phase oxidation of 1,2-dichloroethane. It has been demonstrated that Ru addition improves the oxygen mobility as well as the amount of Co 2+ and O ads species at the surface by the formation of the Ru−O−Co bond, which in turn governs the performance of the catalysts in the oxidation reaction. Moreover, the acid-etching favors the dispersion of the Ru species on the surface of the catalysts and strengthens the interaction among the noble metal and the cobalt oxide, thereby improving the thermal stability of the Ru-promoted oxides. Thus, the resulting catalysts are not only active, as the chlorinated pollutant is efficiently converted into deep oxidation products at relatively low temperatures, but also quite stable when operating for 120 h.

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Recent advances in cobalt-based Fischer-Tropsch synthesis catalysts

Cited by 32 publications

References 221 publications

An Overview of Low-Temperature Fischer–Tropsch Synthesis: Market Conditions, Raw Materials, Reactors, Scale-Up, Process Intensification, Mechanisms, and Outlook

An Overview of Low-Temperature Fischer–Tropsch Synthesis: Market Conditions, Raw Materials, Reactors, Scale-Up, Process Intensification, Mechanisms, and Outlook

Study on the improvement of photocatalytic performance by codoping of cobalt and fullerene with nano-titanium dioxide

Promotion of Cobalt Oxide Catalysts by Acid-Etching and Ruthenium Incorporation for Chlorinated VOC Oxidation

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