Effects of highly dispersed ceria addition on reducibility, activity and hydrocarbon chain growth of a Co/SiO2 Fischer–Tropsch catalyst

1999 ◽  
Vol 50 (2) ◽  
pp. 413-427 ◽  
Author(s):  
B Ernst ◽  
L Hilaire ◽  
A Kiennemann
Keyword(s):  
Hydrocarbon Chain ◽  
Chain Growth ◽  
Fischer Tropsch ◽  
Highly Dispersed

Computational exploration of Fe55@C240-catalyzed Fischer–Tropsch synthesis

2018 ◽  
Vol 20 (4) ◽  
pp. 2741-2753 ◽  
Author(s):  
Geraldine Cilpa-Karhu ◽  
Kari Laasonen
Keyword(s):  
Dft Calculations ◽  
Hydrocarbon Chain ◽  
Tropsch Synthesis ◽  
Chain Growth ◽  
Fischer Tropsch ◽  
Fischer Tropsch Synthesis ◽  
Co Insertion ◽  
Computational Exploration ◽  
Insertion Mechanism

DFT calculations showed possible hydrocarbon chain growth on Fe55@C240 preferentially via a CO insertion mechanism.

Fischer-Tropsch Synthesis over Co/SiO2 Catalysts Modified with Ethylenediamine

2012 ◽  
Vol 512-515 ◽  
pp. 2143-2146
Author(s):  
Yue Lun Wang ◽  
Bo Hou ◽  
De Bao Li ◽  
Jian Gang Chen ◽  
Yu Han Sun
Keyword(s):  
Active Sites ◽  
Cobalt Nanoparticles ◽  
Tropsch Synthesis ◽  
Molar Ratio ◽  
Chain Growth ◽  
Light Hydrocarbons ◽  
Fischer Tropsch ◽  
Fischer Tropsch Synthesis ◽  
Dispersed Catalysts ◽  
Highly Dispersed

The influence of ethylenediamine (en)/Co molar ratio on the preparation of Co/SiO2catalysts was studied. The decomposition of these Co-en species resulted in the formation of small cobalt nanoparticles. The highly dispersed catalysts led to lower FT activity due to an increase of cobalt-silica interaction except Co(en)2/SiO2catalyst. Meanwhile, higher selectivity for light hydrocarbons was observed, which was ascribed that smaller cobalt particles containing active sites depressed the chain growth.

Fischer-Tropsch synthesis-A C2 initiator for hydrocarbon chain growth on ruthenium

1988 ◽  
Vol 1 (5) ◽  
pp. 121-125 ◽  
Author(s):  
C. A. Mims ◽  
L. E. McCandlish ◽  
M. T. Melchior
Keyword(s):  
Hydrocarbon Chain ◽  
Tropsch Synthesis ◽  
Chain Growth ◽  
Fischer Tropsch ◽  
Fischer Tropsch Synthesis

Carbon Chain Growth by Sequential Reactions of CO and CO2 with a Transition Metal Carbonyl Complex

2018 ◽  
Author(s):  
Richard Kong ◽  
Mark Crimmin
Keyword(s):  
Transition Metal ◽  
Metal Carbonyl ◽  
Carbon Chain ◽  
Chain Growth ◽  
Carbonyl Complex ◽  
Fischer Tropsch ◽  
Carbon Chains ◽  
Sequential Coupling ◽  
Energy Economy ◽  
Sequential Reactions

<i>The formation of carbon chains by the coupling of COx (X = 1 or 2) units on transition metals is a fundamental step relevant to Fischer-Tropsch catalysis. Fischer-Tropsch catalysis produces energy dense liquid hydrocarbons from synthesis gas (CO and H2) and has been a mainstay of the energy economy since its discovery nearly a century ago. Despite detailed studies aimed at elucidating the steps of catalysis, experimental evidence for chain growth (Cn to Cn+1 ; n > 2) from the reaction of CO with metal complexes is unprecedented. In this paper, we show that carbon chains can be grown from sequential reactions of CO or CO2 with a transition metal carbonyl complex. By exploiting the cooperative effect of transition and main group metals, we document the first example of chain propagation from sequential coupling of CO units (C1 to C3 to C4), along with the first example of incorporation of CO2 into the growing carbon chain.</i><br>

Chain growth mechanism of Fischer–Tropsch synthesis on Fe5C2(001)

2011 ◽  
Vol 346 (1-2) ◽  
pp. 55-69 ◽  
Author(s):  
Dong-Bo Cao ◽  
Yong-Wang Li ◽  
Jianguo Wang ◽  
Haijun Jiao
Keyword(s):  
Growth Mechanism ◽  
Tropsch Synthesis ◽  
Chain Growth ◽  
Fischer Tropsch ◽  
Fischer Tropsch Synthesis
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