Effect of synthesis and activation methods on the catalytic properties of silica nanospring (NS)-supported iron catalyst for Fischer-Tropsch synthesis

Alayat, Abdulbaset M.; Mcllroy, David N.; McDonald, Armando G.

doi:10.1016/j.fuproc.2017.09.011

Cited by 38 publications

(22 citation statements)

References 53 publications

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“…With the gradual carburization of the recovered iron phases, hydrocarbon species are formed on the catalyst slowly. As a result, it could be seen that iron carbide formed on the surface layers plays a positive role in relation to active sites in FT [12,13].…”

Section: Mechanism Of the Iron Catalyst Preparationmentioning

confidence: 96%

Selectivity Modeling of Synthesis Gas Reaction over the Iron Catalyst and Optimization Products

Atashi¹,

Veiskarami²

2018

TOCENGJ

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Background:Among all of the consumable energy, the liquid fuel is very important. The use of the various technologies to produce this expensive material will be increasing day by day. Materials & Methods:The Fischer-Tropsch Process is one of these technologies. In this catalytic process, a lot of products are produced, therefore, it is always steered to the production of favorable products. For this reason, in order to predict the performance of iron-based catalysts, based on the three factors;pressure, temperature and H 2 /CO ratio, the selectivity models for the products were obtained. Then, the best possible conditions for the highest production of hydrocarbons were calculated which are used in the designing of engineering equipment. Result & Conclusion:The optimal condition for the maximum production of total hydrocarbons achieved was set as P=1 MPa, H 2 /CO=1, and T=542 K.

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Section: Mechanism Of the Iron Catalyst Preparationmentioning

confidence: 96%

Selectivity Modeling of Synthesis Gas Reaction over the Iron Catalyst and Optimization Products

Atashi¹,

Veiskarami²

2018

TOCENGJ

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“…Fischer–Tropsch Synthesis (FTS) has been recognized as a promising route to produce environmentally clean liquid fuels and industrial chemicals (heavy and light hydrocarbons) from renewable feed-stocks [1]. FTS is a heterogeneous catalyzed polymerization reaction of syngas (mixture of CO and H 2 ), which is derived from the gasification of a variety of feed-stocks (natural gas, coal, and biomass), into a wide range of molecular weight hydrocarbon chains.…”

Section: Introductionmentioning

confidence: 99%

“…For this reaction, several Group VIII transition metals, such as iron (Fe), cobalt (Co) and ruthenium (Ru), are all active in FTS, but only Fe and Co are used for industrial application because of their high activity, low methane selectivity, low cost and high water gas shift (WGS) activity [1,2,3]. The FTS efficiency and hydrocarbon product distribution depend on variables, such as catalyst specifications (e.g., nature and composition of the catalyst, promoters, support, etc.)…”

Section: Introductionmentioning

confidence: 99%

“…and processes conditions (e.g., reactor type, temperature and reaction pressure, activation and preparation methods, etc.) [1,4]. The type of inorganic support (e.g., SiO 2 , Al 2 O 3 , TiO 2 , activated carbon, zeolite, etc.)…”

Section: Introductionmentioning

confidence: 99%

“…To date, we are unaware of FTS studies using Al 2 O 3 to modify 1 dimensional (1D) nanostructured supports, such as silica nanosprings (NS). Silica NS are a new 1D support materials for catalysts, and have been demonstrated to meet the criteria of supports for FTS applications [1,2,9].…”

Section: Introductionmentioning

confidence: 99%

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Alumina Coated Silica Nanosprings (NS) Support Based Cobalt Catalysts for Liquid Hydrocarbon Fuel Production From Syngas

et al. 2019

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The effects of Al2O3 coating on the performance of silica nanospring (NS) supported Co catalysts for Fischer–Tropsch synthesis (FTS) were evaluated in a quartz fixed-bed microreactor. The Co/NS-Al2O3 catalysts were synthesized by coating the Co/NS and NS with Al2O3 by an alkoxide-based sol-gel method (NS-Al-A and NS-Al-B, respectively) and then by decorating them with Co. Co deposition was via an impregnation method. Catalysts were characterized before the FTS reaction by the Brunauer–Emmett–Teller (BET) method, X-ray diffraction, transmission electron microscopy, temperature programmed reduction, X-ray photoelectron spectroscopy, differential thermal analysis and thermogravimetric analysis in order to find correlations between physico-chemical properties of catalysts and catalytic performance. The products of the FTS were trapped and analyzed by GC-TCD and GC-MS to determine the CO conversion and reaction selectivity. The Al2O3 coated NS catalyst had a significant affect in FTS activity and selectivity in both Co/NS-Al2O3 catalysts. A high CO conversion (82.4%) and Σ > C6 (86.3%) yield were obtained on the Co/NS-Al-B catalyst, whereas the CO conversion was 62.8% and Σ > C6 was 58.5% on the Co/NS-Al-A catalyst under the same FTS experimental condition. The Co/NS-Al-A catalyst yielded the aromatic selectivity of 10.2% and oxygenated compounds.

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Enhanced Catalytic Performance of CuO–ZnO–Al2O3/SAPO-5 Bifunctional Catalysts for Direct Conversion of Syngas to Light Hydrocarbons and Insights into the Role of Zeolite Acidity

Liu

Yang

et al. 2019

Catal Lett

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Effect of synthesis and activation methods on the catalytic properties of silica nanospring (NS)-supported iron catalyst for Fischer-Tropsch synthesis

Cited by 38 publications

References 53 publications

Selectivity Modeling of Synthesis Gas Reaction over the Iron Catalyst and Optimization Products

Selectivity Modeling of Synthesis Gas Reaction over the Iron Catalyst and Optimization Products

Alumina Coated Silica Nanosprings (NS) Support Based Cobalt Catalysts for Liquid Hydrocarbon Fuel Production From Syngas

Enhanced Catalytic Performance of CuO–ZnO–Al2O3/SAPO-5 Bifunctional Catalysts for Direct Conversion of Syngas to Light Hydrocarbons and Insights into the Role of Zeolite Acidity

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