A new synthesis of carbon encapsulated Fe5C2 nanoparticles for high-temperature Fischer–Tropsch synthesis

Nanoscale ◽  
2015 ◽  
Vol 7 (40) ◽  
pp. 16616-16620 ◽  
Author(s):  
Seok Yong Hong ◽  
Dong Hyun Chun ◽  
Jung-Il Yang ◽  
Heon Jung ◽  
Ho-Tae Lee ◽  
...  
Keyword(s):  
High Temperature ◽  
Thermal Treatment ◽  
Iron Carbide ◽  
Tropsch Synthesis ◽  
Fischer Tropsch ◽  
Fischer Tropsch Synthesis ◽  
Iron Oxalate ◽  
Oxalate Dihydrate ◽  
New Synthesis ◽  
Carbide Particles

A novel Fe5C2@C catalyst bearing small iron carbide particles ∼10 nm in diameter was prepared using a simple thermal treatment of iron oxalate dihydrate cubes, employed in high-temperature Fischer–Tropsch synthesis.

scholarly journals Preparation of Iron Carbides Formed by Iron Oxalate Carburization for Fischer–Tropsch Synthesis

Catalysts ◽  
2019 ◽  
Vol 9 (4) ◽  
pp. 347
Author(s):  
Yang ◽  
Zhang ◽  
Liu ◽  
Ning ◽  
Han ◽  
...  
Keyword(s):  
Iron Carbide ◽  
Carbon Layer ◽  
Tropsch Synthesis ◽  
Light Olefins ◽  
Fischer Tropsch ◽  
Iron Carbides ◽  
Oxalate Precursor ◽  
Fischer Tropsch Synthesis ◽  
Iron Oxalate ◽  
In Situ Activation

Different iron carbides were synthesized from the iron oxalate precursor by varying the CO carburization temperature between 320 and 450 °C. These iron carbides were applied to the high-temperature Fischer–Tropsch synthesis (FTS) without in situ activation treatment directly. The iron oxalate as a precursor was prepared using a solid-state reaction treatment at room temperature. Pure Fe5C2 was formed at a carburization temperature of 320 C, whereas pure Fe3C was formed at 450 °C. Interestingly, at intermediate carburization temperatures (350–375 °C), these two phases coexisted at the same time although in different proportions, and 360 °C was the transition temperature at which the iron carbide phase transformed from the Fe5C2 phase to the Fe3C phase. The results showed that CO conversions and products selectivity were affected by both the iron carbide phases and the surface carbon layer. CO conversion was higher (75–96%) when Fe5C2 was the dominant iron carbide. The selectivity to C5+ products was higher when Fe3C was alone, while the light olefins selectivity was higher when the two components (Fe5C2 and Fe3C phases) co-existed, but the quantity of Fe3C was small.

Highly activated K-doped iron carbide nanocatalysts designed by computational simulation for Fischer–Tropsch synthesis

2014 ◽  
Vol 2 (35) ◽  
pp. 14371-14379 ◽  
Author(s):  
Ji Chan Park ◽  
Sang Chul Yeo ◽  
Dong Hyun Chun ◽  
Jung Tae Lim ◽  
Jung-Il Yang ◽  
...  
Keyword(s):  
High Temperature ◽  
Computational Simulation ◽  
Iron Carbide ◽  
Tropsch Synthesis ◽  
Fischer Tropsch ◽  
Fischer Tropsch Synthesis ◽  
Hydrocarbon Yield

Highly activated K-doped Hägg-carbide/charcoal nanocatalyst at K/Fe = 0.075 showed the highest FTY value, the best hydrocarbon yield, and a good gasoline selectivity for the high-temperature Fischer–Tropsch reaction.

scholarly journals Back Cover: Selective Formation of Hägg Iron Carbide with g-C3 N4 as a Sacrificial Support for Highly Active Fischer-Tropsch Synthesis (ChemCatChem 21/2015)

ChemCatChem ◽  
2015 ◽  
Vol 7 (21) ◽  
pp. 3594-3594
Author(s):  
Hunmin Park ◽  
Duck Hyun Youn ◽  
Jae Young Kim ◽  
Won Yong Kim ◽  
Yo Han Choi ◽  
...  
Keyword(s):  
Iron Carbide ◽  
Tropsch Synthesis ◽  
Fischer Tropsch ◽  
Fischer Tropsch Synthesis ◽  
Back Cover ◽  
Highly Active ◽  
Selective Formation

High-Temperature Fischer–Tropsch Synthesis of Light Olefins over Nano-Fe3O4@MnO2 Core–Shell Catalysts

2019 ◽  
Vol 58 (47) ◽  
pp. 21350-21362 ◽  
Author(s):  
Xian Wu ◽  
Hongfang Ma ◽  
Haitao Zhang ◽  
Weixin Qian ◽  
Dianhua Liu ◽  
...  
Keyword(s):  
High Temperature ◽  
Tropsch Synthesis ◽  
Light Olefins ◽  
Core Shell ◽  
Fischer Tropsch ◽  
Fischer Tropsch Synthesis ◽  
Nano Fe3o4

scholarly journals Atomically Defined Iron Carbide Surface for Fischer–Tropsch Synthesis Catalysis

ACS Catalysis ◽  
2018 ◽  
Vol 9 (2) ◽  
pp. 1264-1273 ◽  
Author(s):  
Yijia Li ◽  
Zheshen Li ◽  
Ali Ahsen ◽  
Lutz Lammich ◽  
Gilbère J. A. Mannie ◽  
...  
Keyword(s):  
Iron Carbide ◽  
Tropsch Synthesis ◽  
Fischer Tropsch ◽  
Fischer Tropsch Synthesis

Selective Formation of Hägg Iron Carbide with g-C3N4as a Sacrificial Support for Highly Active Fischer-Tropsch Synthesis

ChemCatChem ◽  
2015 ◽  
Vol 7 (21) ◽  
pp. 3488-3494 ◽  
Author(s):  
Hunmin Park ◽  
Duck Hyun Youn ◽  
Jae Young Kim ◽  
Won Yong Kim ◽  
Yo Han Choi ◽  
...  
Keyword(s):  
Iron Carbide ◽  
Tropsch Synthesis ◽  
Fischer Tropsch ◽  
Fischer Tropsch Synthesis ◽  
Highly Active ◽  
Selective Formation

Metal-rich tellurides PdTe1−xBix as functional materials: Catalytic behavior in the Fischer–Tropsch synthesis and bonding analysis

2020 ◽  
Vol 13 (04) ◽  
pp. 2041001
Author(s):  
Elena Yu. Zakharova ◽  
Anastasiya Yu. Makhaneva ◽  
Maya V. Kulikova ◽  
Maria V. Chudakova ◽  
Mikhail I. Ivantsov ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
High Temperature ◽  
Functional Materials ◽  
Tropsch Synthesis ◽  
Fischer Tropsch ◽  
Catalytic Behavior ◽  
Fischer Tropsch Synthesis ◽  
Bonding Analysis ◽  
Nias Type ◽  
Positive Effect

A series of solid solutions in the PdTe–PdBi system with general formula [Formula: see text]Bix ([Formula: see text], 0.5, 0.67) with the structure based on the NiAs type were synthesized by a high-temperature ampoule technique. These compounds, along with their parent binaries, PdTe and PdBi, were tested as promoters for the standard Co/Al2O3 catalytic system in the Fischer–Tropsch synthesis. It is shown that the addition of PdTe and [Formula: see text]Bix to the standard catalyst increases both yield and selectivity with respect to the liquid phase. At the same time, the addition of PdBi does not only improve catalytic activity, but also slightly inhibits it. Another positive effect of the PdTe and [Formula: see text]Bix addition is the shift in the conversion products toward the diesel and wax fractions. Chemical bonding analysis in orbital and direct space indicates that the addition of Bi to PdTe might increase the localized bonding.

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