Characterization by Moessbauer spectroscopy of iron carbides formed by Fischer-Tropsch synthesis

1982 ◽  
Vol 86 (24) ◽  
pp. 4799-4808 ◽  
Author(s):  
G. Le Caer ◽  
J. M. Dubois ◽  
M. Pijolat ◽  
V. Perrichon ◽  
P. Bussiere
Keyword(s):  
Tropsch Synthesis ◽  
Fischer Tropsch ◽  
Moessbauer Spectroscopy ◽  
Iron Carbides ◽  
Fischer Tropsch Synthesis

The role of carbon atoms of supported iron carbides in Fischer–Tropsch synthesis

2015 ◽  
Vol 5 (3) ◽  
pp. 1433-1437 ◽  
Author(s):  
V. V. Ordomsky ◽  
B. Legras ◽  
K. Cheng ◽  
S. Paul ◽  
A. Y. Khodakov
Keyword(s):  
Reaction Rate ◽  
Iron Carbide ◽  
High Reactivity ◽  
Tropsch Synthesis ◽  
Chain Growth ◽  
Fischer Tropsch ◽  
Iron Carbides ◽  
Fischer Tropsch Synthesis ◽  
Supported Iron

High reactivity of iron carbides enhances the Fischer–Tropsch reaction rate on supported iron catalysts. Carbon atoms in iron carbide are involved in the initiation of chain growth in Fischer–Tropsch synthesis.

scholarly journals Controlled formation of iron carbides and their performance in Fischer-Tropsch synthesis

2018 ◽  
Vol 362 ◽  
pp. 106-117 ◽  
Author(s):  
Tim A. Wezendonk ◽  
Xiaohui Sun ◽  
A. Iulian Dugulan ◽  
Arno J.F. van Hoof ◽  
Emiel J.M. Hensen ◽  
...  
Keyword(s):  
Tropsch Synthesis ◽  
Fischer Tropsch ◽  
Iron Carbides ◽  
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.

A possible role of paramagnetic states of iron carbides in the fischer–tropsch synthesis selectivity of nanosized slurry catalysts

2019 ◽  
Vol 380 ◽  
pp. 32-42 ◽  
Author(s):  
A.E. Kuz'min ◽  
D.A. Pichugina ◽  
M.V. Kulikova ◽  
O.S. Dement'eva ◽  
N.A. Nikitina ◽  
...  
Keyword(s):  
Tropsch Synthesis ◽  
Fischer Tropsch ◽  
Iron Carbides ◽  
Fischer Tropsch Synthesis

Revealing the activity of different iron carbides for Fischer-Tropsch synthesis

2021 ◽  
Vol 281 ◽  
pp. 119521 ◽  
Author(s):  
Fangxu Lu ◽  
Xin Chen ◽  
Zhigang Lei ◽  
Lixiong Wen ◽  
Yi Zhang
Keyword(s):  
Tropsch Synthesis ◽  
Fischer Tropsch ◽  
Iron Carbides ◽  
Fischer Tropsch Synthesis
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