Study of Co, Ru/SBA-15 type materials for Fischer–Tropsch synthesis in fixed bed tubular reactor: I. Effect of the high Ru content on the catalytic activity

Coronel-García, M.A.; Torre, A.I. Reyes de la; Melo-Banda, J.A.; Martínez-Salazar, A.L.; Silva–Rodrigo, R.; Zavala, Nancy Patricia Díaz; Portales-Martínez, B.; Domínguez, José Manuel

doi:10.1016/j.ijhydene.2015.09.061

Cited by 24 publications

(15 citation statements)

References 22 publications

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“…As seen, all these catalysts showed the Co 3 O 4 compound, which confirms the results of the earlier studies [18,21,41] . In fact, the presence of cobalt oxide phase demonstrated an agreement with those results obtained in TPR test of this work [3,[7][8][9][10][11]28] . Moreover, the diffraction patterns in the spectrum of A 1 catalyst showed that the low intense peak at 2 θ = 48.7 °was attributed to the cobalt aluminate formation [8,28] , while no peak had been observed for the cobalt-CNT formation in the XRD pattern of the Co-Ru/CNTs catalysts.…”

Section: The Characterization Of the Synthesized Catalystssupporting

confidence: 91%

“…http://engine.scichina.com/doi/10.1016/j.jechem.2017. 10.001 in a FTS [1,3,[7][8][9][10][11] . Cobalt (Co as transition metal)presents the specific properties such as low cost compared to ruthenium (Ru), higher activity, tendency to formation of the bimetallic particles with ruthenium (Co-Ru), moderate deactivation rate and almost no tendency for Water-Gas Shift (WGS) reaction [3,[12][13][14] .…”

Section: Introductionmentioning

confidence: 99%

“…On the other hand, the noble metals, i.e. Ru, Pt, Ir, Re, Pd, Rh, have often been used as promoter [2,9,14,15] . Of course, the influences of promotion of these noble metals on the activity of cobalt catalysts are dependent on the Co loading method, operating conditions and catalyst support [1][2][3]13] .…”

Section: Introductionmentioning

confidence: 99%

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Fischer–Tropsch synthesis using Co and Co-Ru bifunctional nanocatalyst supported on carbon nanotube prepared via chemical reduction method

Shariati

Haghtalab

Mosayebi

2019

Journal of Energy Chemistry

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Section: The Characterization Of the Synthesized Catalystssupporting

confidence: 91%

Section: Introductionmentioning

confidence: 99%

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Fischer–Tropsch synthesis using Co and Co-Ru bifunctional nanocatalyst supported on carbon nanotube prepared via chemical reduction method

Shariati

Haghtalab

Mosayebi

2019

Journal of Energy Chemistry

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“…In FTS, which is a kind of polymerization process, a large range of light gases and distillates, including olefins, paraffins, and oxygenated compounds are produced from synthesis gas in a catalytic reaction (Parnian et al 2014a, b;Liu et al 2015). The synthetic fuel made from Fischer-Tropsch synthesis is characterized by a prime quality, significantly from the view point of low pollution and a high cetane number (Coronel-García et al 2015;Rodríguez-Fernández et al 2009). The spectrum of the FTS product contains the complex mixtures of linear and branched hydrocarbons ranging from light alkenes to heavy waxes and oxygenated products (Derevich et al 2012;Todic et al 2018;Najafabadi et al 2016;van Helden et al 2017;Khodakov et al 2007).…”

Section: Introductionmentioning

confidence: 99%

Modeling of liquid hydrocarbon products from syngas

Atashi

Hajisafari

Rezaeian

et al. 2018

Int J Coal Sci Technol

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The modeling of hydrocarbon selectivity and CO conversion of the Fischer-Tropsch synthesis over Fe-Ni/Al 2 O 3 catalyst by using coupled artificial neural networks (ANN) and design of experiment (DOE) approaches were investigated. The variable parameters for modeling consisted of the pressure range between 2 and 10 bar and the temperature range of 523-573 K. After training of data by ANN and determination of DOE points by central composite design (CCD), the results were compiled together for producing simulated data used in the response surface method (RSM). The RSM was used as an applied mathematics model to demonstrate the CO conversion and selectivity of hydrocarbons dependence on the CO hydrogenation conditions. The results indicated that CO conversion and C þ 5 selectivity increased with rising both temperature and pressure. The methane selectivity showed upward trend as the temperature increased. It also increased by decreasing pressure. Finally, the optimization of the catalytic process was carried out and conditions with maximum desired product were obtained. A comparison of experimental values and RSM values show that the RSM equations are able to predict the behavior of experimental data.

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“…Please cite this article as: Taghavi S et al, Loading and promoter effects on the performance of nitrogen functionalized graphene nanosheets supported cobalt Fischer-Tropsch synthesis catalysts, International Journal of Hydrogen Energy, https://doi.org/10.1016/ j.ijhydene.2019.03.015 selectivity of heavier liquid products experienced an increase compared to C 4 catalyst [31,32].…”

mentioning

confidence: 99%

Loading and promoter effects on the performance of nitrogen functionalized graphene nanosheets supported cobalt Fischer-Tropsch synthesis catalysts

Tavasoli

Asghari

Signoretto

2019

International Journal of Hydrogen Energy

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The effects of nitrogen functional groups on graphene surface and also the effects of cobalt loading and ruthenium promoter on the performance of nitrogen functionalized graphene nanosheets (N-GNS) supported cobalt catalysts in FischereTropsch synthesis (FTS) are investigated. A 15 wt% Co/PGNS catalyst, a series of Co/N-GNS (15e30 wt% loading) and ruthenium promoted catalysts (25 wt% Co,0.5 wt% Ru/N-GNS and 25 wt% Co,0.5 wt% Ru/ PGNS) were prepared by impregnation method. The purified GNS and functionalized GNS and all catalysts were characterized by Raman spectroscopy, FTIR, SEM, EDS, ICP, BET, TEM, XRD and TPR. The catalysts assessed in FTS in a fixed bed micro-reactor at 220 C, 1.8 Mpa and H 2 /CO ratio of 2. Functionalization of GNS shifted the TPR reduction peaks to lower temperature, increased the dispersion of cobalt particles and increased the percentage CO conversion from 70.6% to 74.5%. Increasing the cobalt loading resulted in increasing the average cobalt cluster size, improvements in the reducibility of Co 3 O 4. The maximum FTS activity for N-GNS supported catalyst is achieved at 30 wt % cobalt loading. The C þ 5 selectivity for the 30 wt % cobalt catalyst was higher than that of the 15 wt % Cobalt catalyst. Addition of 0.5 wt%Ru increased the FTS rate (gCH/(gcat$h)) from 0.377 to 0.412 and the liquid products selectivity from 86.5% to 91.2%.

show abstract

Study of Co, Ru/SBA-15 type materials for Fischer–Tropsch synthesis in fixed bed tubular reactor: I. Effect of the high Ru content on the catalytic activity

Cited by 24 publications

References 22 publications

Fischer–Tropsch synthesis using Co and Co-Ru bifunctional nanocatalyst supported on carbon nanotube prepared via chemical reduction method

Fischer–Tropsch synthesis using Co and Co-Ru bifunctional nanocatalyst supported on carbon nanotube prepared via chemical reduction method

Modeling of liquid hydrocarbon products from syngas

Loading and promoter effects on the performance of nitrogen functionalized graphene nanosheets supported cobalt Fischer-Tropsch synthesis catalysts

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