Effect of support and promoter on the catalytic performance and structural properties of the Fe–Co–Mn catalysts for Fischer–Tropsch synthesis

Arsalanfar, Maryam; Mirzaei, Ali Akbar; Bozorgzadeh, Hamid Reza; Samimi, Abdolreza; Ghobadi, Roohollah

doi:10.1016/j.jiec.2013.07.011

Cited by 47 publications

(36 citation statements)

References 42 publications

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“…The utilization of Fe-based catalysts is substantially needed owing to their great catalytic performance and water-gas shift reactivity, which contributes to make up the shortage of H 2 in the syngas from modern energy-efficient coal gasifiers ( Figure 39) (Arsalanfar et al 2012b, Arsalanfar et al 2014. Co is the most desired metal for fabrication of long-chain hydrocarbons from synthetic gas because of its excellent activity per weight of metal, high selectivity to linear paraffins, high stability toward deactivation of water, low water-gas shift activity, and low price compared to noble metals, including Ru, Re, or Pt.…”

Section: Fe-co-mn/mgo Heterogeneous Catalystmentioning

confidence: 99%

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Magnesium oxide as a heterogeneous catalyst support

Julkapli

Bagheri

2016

Reviews in Inorganic Chemistry

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AbstractResearchers normally consider MgO as a promising high-surface-area heterogeneous catalyst support, additive, and promoter for many kinds of chemical reactions due to its certain properties, including stoichiometry and composition, cation valence, redox properties, acid-base character, and crystal and electronic structure. The presence of MgO as a support catalyst also modifies the electronic state of the overall catalytic performance by electron transfer between the native catalyst and MgO as support. The influence is clarified by alteration of acid-base properties of the catalyst-supported MgO. Meanwhile, the method, chemical composition, and condition in the preparation of MgO are the important factors affecting its surface and catalytic properties. Therefore, MgO with a high surface area and nanocrystalline structure has encouraging applications for some reactions, including as dry reforming, dehydrohalogenation, oxidative dehydrogenation of butane, nonoxidative dehydrogenation of ethylbenzene, decomposition of CCl

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Section: Fe-co-mn/mgo Heterogeneous Catalystmentioning

confidence: 99%

“…Schematic representation of incorporation of Fe into the Co-Mn catalyst system(Arsalanfar et al 2014).…”

mentioning

confidence: 99%

Magnesium oxide as a heterogeneous catalyst support

Julkapli

Bagheri

2016

Reviews in Inorganic Chemistry

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“…The addition of Mn to Fe or Co catalysts brought about a significant increase in light olefins formation and a decrease in methane selectivity [21][22][23]. In our previous work we used the Fe-Co-Mn ternary catalyst for the first time and investigate different preparation and operational conditions over this catalyst for CO hydrogenation [24][25][26][27]. In the present work we investigate the effect of drying conditions on the catalytic performance and catalyst structure of co-precipitated Fe-CoMn catalyst and also investigate different surface reaction rates.…”

Section: Introductionmentioning

confidence: 99%

Effect of Drying Conditions on the Catalytic Performance, Structure, and Reaction Rates over the Fe-Co-Mn/MgO Catalyst for Production of Light Olefins

Abdouss

Arsalanfar

Mirzaei

et al. 2017

Bull. Chem. React. Eng. Catal.

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The MgO-supported Fe-Co-Mn catalysts, prepared using co-precipitation procedure, were tested for production of light olefins via CO hydrogenation reaction. The effect of a range of drying conditions including drying temperature and drying time on the structure and catalytic performance of Fe-Co-Mn/MgO catalyst for Fischer-Tropsch synthesis was investigated in a fixed bed micro-reactor under the same operational conditions of T = 350 °C, P = 1 bar, H2/CO = 2/1, and GHSV = 4500 h -1 . It was found that the catalyst dried at 120 °C for 16 h has shown the best catalytic performance for CO hydrogenation. Furthermore, the effect of drying conditions on different surface reaction rates was also investigated and it was found that the precursors drying conditions influenced the rates of different surface reactions. Characterization of catalyst precursors and calcined samples (fresh and used) was carried out using powder X-ray Diffraction (XRD), Scanning Electron Microscopy (SEM), Energy Dispersive Spectroscopy (EDS), Brunauer-Emmett-Teller (BET) measurements, Temperature Programmed Reduction (TPR), Thermal Gravimetric Analysis (TGA), and Differential Scanning Calorimetry (DSC). Characterization results showed that different investigated variables (drying conditions) influenced the structure, morphology and catalytic performance of the ternary catalysts.

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“…However, the resulting metal-support interactions decrease catalyst activity. [207][208][209][210] SiO 2 is the preferred structural promoter and it has been reported that it shows better catalytic performance when added as a binder, instead of during the precipitation of iron, since the metal-support interactions are reduced. 211 Further addition of ZrO 2 to Fe-SiO 2 catalysts results in a higher carbide content, enhancing catalyst activity.…”

Section: Structural Promotersmentioning

confidence: 99%