Zeolite-Containing Co Catalysts for Fischer–Tropsch Synthesis with Tailor-Made Molecular-Weight Distribution of Hydrocarbons

Синева, Л. В.; Мордкович, В. З.; Asalieva, E. Yu.; Smirnova, Valeria

doi:10.3390/reactions4030022

Cited by 4 publications

(5 citation statements)

References 105 publications

(153 reference statements)

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“…Patzlaff et al (1999) argued for two distinct mechanisms because their model with two different α-values fit well for Fe catalysts, excluding the influence of secondary chain growth reactions. Simplified representation of widely recognized carbide mechanism and CO insertion describing the production of Fischer-Tropsch products based on H-assisted carbide mechanism initiation (Ojeda et al, 2010); carbide mechanism termination to oxygenates (Teng et al, 2005); carbide mechanism termination to olefins/paraffins (Mahmoudi et al, 2017); branching (Shi et al, 2005); direct CO insertion initiation (ten Have and Weckhuysen, 2021); enol mechanism initiation (Davis, 2001); CO insertion termination to oxygenates (Teng et al, 2005); CO insertion termination to paraffins/olefins (Shafer et al, 2019); and secondary reactions and bifunctional reactions (Sineva et al, 2023).…”

Section: Conjectured Reaction Mechanismsmentioning

confidence: 99%

“…In FT bifunctional catalysts, metal nanoparticles are dispersed within the cavities of acidic zeolite structures. Combining the functions of dehydrogenation and hydrogenation with the acidic properties of the zeolite framework makes these catalysts particularly interesting for FTS (Farrusseng and Tuel, 2017;Sineva et al, 2023).…”

Section: Bifunctional Fischer-tropsch Catalystsmentioning

confidence: 99%

“…The combination of both active materials can be realized by the physical mixture of different particles, the acid material as a binder or support, and a shell around a common catalyst particle (Sineva et al, 2023). The acid sites can be provided by zeolites, clays, alumina, silica, alumino-silicates, and carbon (Martínez-Vargas et al, 2019).…”

Section: Acid Sites and Supportsmentioning

confidence: 99%

“…Zeolites are available in many variations as H-ZSM, ZSM, Beta, NaY, Y, and other appearances, with different characteristics and, therefore, different selectivities toward isomers, olefins, and C ranges. Overall, they provide good acidity, high thermal stability, and porosity (Sineva et al, 2023). The porosity can be tuned within specific boundaries for different zeolites and sieve products/reactants/intermediates (Mena Subiranas et al, 2008).…”

Section: Acid Sites and Supportsmentioning

confidence: 99%

See 3 more Smart Citations

Insights into Fischer–Tropsch catalysis: current perspectives, mechanisms, and emerging trends in energy research

Keunecke,

Dossow,

Dieterich

et al. 2024

Front. Energy Res.

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Fischer–Tropsch (FT) synthesis is an important module for the production of clean and sustainable fuels and chemicals, making it a topic of considerable interest in energy research. This mini-review covers the current literature on FT catalysis and offers insights into the primary products, the nuances of the FT reaction, and the product distribution, with particular attention to the Anderson–Schulz–Flory distribution (ASFD) and known deviations from this fundamental concept. Conventional FT catalysts, particularly Fe- and Co-based catalysis systems, are reviewed, highlighting their central role and the influence of water and water–gas shift (WGS) activity on their catalytic behavior. Various mechanisms of catalyst deactivation are also investigated, and the high methanation activity of Co-based catalysts is illustrated. To make this complex field accessible to a broader audience, we explain conjectured reaction mechanisms, namely, the carbide mechanism and CO insertion. We discuss the complex formation of a wide range of products, including olefins, kerosenes, branched hydrocarbons, and by-products such as alcohols and oxygenates. The article goes beyond the traditional scope of FT catalysis by addressing topics of current interest, including the direct hydrogenation of CO2 for power-to-X applications and the use of bifunctional catalysts to produce tailored FT products, most notably for the production of sustainable aviation fuel (SAF). This mini-review provides a holistic overview of the evolving landscape of FT catalysts and is aimed at both experienced researchers and those new to the field while covering current and emerging trends in this important area of energy research.

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Section: Conjectured Reaction Mechanismsmentioning

confidence: 99%

Section: Bifunctional Fischer-tropsch Catalystsmentioning

confidence: 99%

Section: Acid Sites and Supportsmentioning

confidence: 99%

Section: Acid Sites and Supportsmentioning

confidence: 99%

See 2 more Smart Citations

Insights into Fischer–Tropsch catalysis: current perspectives, mechanisms, and emerging trends in energy research

Keunecke,

Dossow,

Dieterich

et al. 2024

Front. Energy Res.

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show abstract

“…In the synthesis of hydrocarbons using the FT method on zeolite-containing catalysts, the selectivity for the gasoline fraction, depending on the synthesis conditions, varies from 60 to 90% [11][12][13][14][15][16][17][18]. At the same time, it is important that the synthesis products contain a significant proportion of iso-alkanes, which have high antiknock properties.…”

Section: Introductionmentioning

confidence: 99%

Selective Synthesis of a Gasoline Fraction from CO and H2 on a Co-SiO2/ZSM-5/Al2O3 Catalyst

Yakovenko,

Narochnyi,

Zubkov

et al. 2023

Catalysts

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This article reports on a simple method for producing high-octane gasoline from CO and H2 on a Co-Al2O3/SiO2/HZSM-5/Al2O3 hybrid catalyst. In the selected pressure range (0.5, 1.0, and 2.0 MPa), it was found that a decrease in pressure and an increase in temperature contribute to an increase in the content of branched hydrocarbons. The optimal technological parameters of the process were determined to ensure high selectivity and productivity for C5–C10 hydrocarbons: pressure—1.0 MPa, ratio H2/CO = 2, gas space velocity—1000 h−1, temperature—250 °C. The selectivity for the gasoline fraction is 65.2%, and the ratio of branched to linear hydrocarbons (iso/n index) is 2.3. Under the specified technological conditions, an experimental batch of gasoline fraction (1000 cm3) was produced at the pilot plant during 400 h of continuous operation. The main physicochemical and operational parameters of the experimental gasoline fraction of hydrocarbons have been determined. The octane number determined by the research method according to GOST R 52947-2019 is 78.5 units.

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A bifunctional cobalt catalyst for the synthesis of waxy diesel fuel by the Fischer–Tropsch method – from the development to implementation. Part 3. The experience of industrial implementation of the preparation technology

Narochnyi,

Zubkov,

Savost'yanov

et al. 2024

Kat.v.prom.

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The work summarizes the results of testing the technology for preparing a bifunctional cobalt catalyst for the synthesis of hydrocarbons from CO and H2, obtained by extruding a mixture of Co-Al2O3 /SiO2 catalyst powders and HZSM-5 zeolite with a binder – boehmite in industrial conditions (2 batches of 50 kg each were prepared). The catalyst technology was implemented on the equipment of Ishimbay Specialized Chemical Catalyst Plant LLC. The obtained industrial samples of the catalyst were characterized by XRF, TPR H2, DTG, and tested in the synthesis of hydrocarbons from CO and H2 at a temperature of 250 °C, a pressure of 2.0 MPa, GHSV 1000 h–1. It has been shown that the implementation of the technology of a bifunctional cobalt catalyst for the production of low pour point diesel fuel in industrial conditions makes it possible to reproduce the characteristics of the catalyst obtained in laboratory conditions. The technology for producing the catalyst can be recommended for the production of industrial batches. It was determined that changes in the heat treatment conditions of the catalyst, as well as the presence/absence of a peptizer and pore former do not lead to a significant decrease in the productivity of C5+ hydrocarbons. The contentof the diesel fraction in C5+ products obtained from industrial samples of the catalyst remains at the level of the value obtained from the laboratory sample of the catalyst. At the same time, the low-temperature properties of diesel fuel obtained using all catalyst samples have similar values. Using an industrial sample synthesized without the use of a peptizing agent and a pore-forming component, the best lowtemperature properties of diesel fuel were achieved – the cloud point and fluid loss point were minus 16 and minus 24, respectively.

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Zeolite-Containing Co Catalysts for Fischer–Tropsch Synthesis with Tailor-Made Molecular-Weight Distribution of Hydrocarbons

Cited by 4 publications

References 105 publications

Insights into Fischer–Tropsch catalysis: current perspectives, mechanisms, and emerging trends in energy research

Insights into Fischer–Tropsch catalysis: current perspectives, mechanisms, and emerging trends in energy research

Selective Synthesis of a Gasoline Fraction from CO and H2 on a Co-SiO2/ZSM-5/Al2O3 Catalyst

A bifunctional cobalt catalyst for the synthesis of waxy diesel fuel by the Fischer–Tropsch method – from the development to implementation. Part 3. The experience of industrial implementation of the preparation technology

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