Comparative study of nano iron catalysts in the presence of the crude polymer matrix and their cross link polymer in the Fischer-Trophsch synthesis

Khazraji, Abdulqadier Hussien Al; Dementyeva, O.S.; Pastukhova, Zh. Yu.; Куликова, М. В.; Флид, В. Р.

doi:10.1088/1742-6596/1032/1/012065

Cited by 2 publications

(2 citation statements)

References 16 publications

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“…Products and their percent conversion of FTS catalyzed based on Fe-paraffin-polymers at temperature range (220-320)°C, P=20 atm and syngas ratio(CO: H2= 1:1). The Fe-paraffin suspensions containing different polymers exhibited different activities and selectivity for the product [19][20] .…”

Section: Fts Performancementioning

confidence: 99%

“…The sample-based on PEG was found in both forms amorphous (δ-FeOOH) and crystalline (Fe3O4). The diffraction peaks for crystal form (Fe3O4) at 2θ: 30°, 36°, 38°, 41°, 43° that indicates of the presence of the magnetite (Fe3O4), 19,20,21 and it is responsible for the effectiveness of nanocatalysts in the Fischer-Tropsch synthesis. Additionally, the trace amount of amorphous form can be observed as highest amorphous form δ-FeOOH in the PET and PC nanocatalysts ( Figure 7).…”

Section: Xrd Analysesmentioning

confidence: 99%

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The Effect of the Polymer Type in the Three-Phases Fischer-Tropsch Synthesis Catalyzed by suspended Iron Nanocatalysts

2019

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Fischer-Tropsch synthesis (FTS) was conducted over paraffin-iron catalysts of three phases system with synthetic polymers that contains different compositions. The suspended iron nanocatalyst was introduced into the slurry reactors Fischer-Tropsch with range temperature (220-320)oC at 2.0 MPa, the atomic ratio contains: 100Fe/100 Paraffin/10 wt% polymer. The study of phase, structure and morphology of the nanocatalyst using x-ray diffraction (XRD) and atomic force microscope (AFM) techniques confirmed that there are two phases of iron oxides Fe3O4 and δ-FeOOH are existed. Maximum conversion of CO to yields of total liquid hydrocarbons that obtained was 74% and 62 g/m3 of FTS over the catalyst Fe-Paraffin/ Polyethylene glycol (Fe-P/PEG) compared to Fe-Paraffin/ Polyethylene terephthalate (Fe-P/PET) and Fe-Paraffin/polycarbonate (Fe-P/PC) systems. The results shows that the polymer type and their structure as well as preparation time of the iron nanocatalysts have high influence on the particle size value. A selectivity of 65% of syngas converted C5+ liquid hydrocarbons achieved using (Fe-P/PEG) catalyst.

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Section: Fts Performancementioning

confidence: 99%

Section: Xrd Analysesmentioning

confidence: 99%

The Effect of the Polymer Type in the Three-Phases Fischer-Tropsch Synthesis Catalyzed by suspended Iron Nanocatalysts

2019

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Ultrafine metal-polymer catalysts based on polyconjugated systems for Fisher–Tropsch synthesis

Куликова

Куликов

Кузьмин

et al. 2020

Pure and Applied Chemistry

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AbstractFor previously studied Fischer–Tropsch nanosized Fe catalyst slurries, polymer compounds with or without polyconjugating structures are used as precursors to form the catalyst nanomatrix in situ, and several catalytic experiments and X-ray diffraction and atomic force microscopy measurements are performed. The important and different roles of the paraffin molecules in the slurry medium in the formation and function of composite catalysts with the two types of aforementioned polymer matrices are revealed. In the case of the polyconjugated polymers, the alkanes in the medium are “weakly” coordinated with the metal-polymer composites, which does not affect the effectiveness of the polyconjugated polymers. Otherwise, alkane molecules form a “tight” surface layer around the composite particles, which create transport complications for the reagents and products of Fischer-Tropsch synthesis and, in some cases, can change the course of the in situ catalyst formation.

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Comparative study of nano iron catalysts in the presence of the crude polymer matrix and their cross link polymer in the Fischer-Trophsch synthesis

Cited by 2 publications

References 16 publications

The Effect of the Polymer Type in the Three-Phases Fischer-Tropsch Synthesis Catalyzed by suspended Iron Nanocatalysts

The Effect of the Polymer Type in the Three-Phases Fischer-Tropsch Synthesis Catalyzed by suspended Iron Nanocatalysts

Ultrafine metal-polymer catalysts based on polyconjugated systems for Fisher–Tropsch synthesis

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