Fabrication of Fischer-Tropsch Catalysts by Deposition of Iron Nanocrystals on Carbon Nanotubes

2015 ◽  
Vol 25 (33) ◽  
pp. 5309-5319 ◽  
Author(s):  
Marianna Casavola ◽  
Justus Hermannsdörfer ◽  
Niels de Jonge ◽  
A. Iulian Dugulan ◽  
Krijn P. de Jong
Keyword(s):  
Carbon Nanotubes ◽  
Fischer Tropsch ◽  
Iron Nanocrystals

Effects of Confinement in Carbon Nanotubes on the Activity, Selectivity, and Lifetime of Fischer−Tropsch Co/Carbon Nanotube Catalysts

2010 ◽  
Vol 55 (8) ◽  
pp. 2757-2763 ◽  
Author(s):  
Ahmad Tavasoli ◽  
Mariane Trépanier ◽  
Ajay K. Dalai ◽  
Nicolas Abatzoglou
Keyword(s):  
Carbon Nanotubes ◽  
Carbon Nanotube ◽  
Fischer Tropsch

scholarly journals Effect of Cobalt Catalyst Confinement in Carbon Nanotubes Support on Fischer-Tropsch Synthesis Performance

Symmetry ◽  
2018 ◽  
Vol 10 (11) ◽  
pp. 572 ◽  
Author(s):  
Omid Akbarzadeh ◽  
Noor Mohd Zabidi ◽  
Yasmin Abdul Wahab ◽  
Nor Hamizi ◽  
Zaira Chowdhury ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Fixed Bed ◽  
Tropsch Synthesis ◽  
Fischer Tropsch ◽  
Fischer Tropsch Synthesis ◽  
Cobalt Oxide Nanoparticles ◽  
Co Conversion ◽  
Multi Walled Carbon Nanotubes ◽  
Pre Treatment ◽  
The Stability

Pre-treating the multi-walled carbon nanotubes (CNTs) support by refluxing in 35 vol% nitric acid followed by heating at the temperature of 600 to 900 °C resulted in the formation of defects on the CNTs. Increasing the temperature of the pre-treatment of the CNTs from 600 °C to 900 °C, enhanced the fraction of cobalt-oxide nanoparticles encapsulated in the channels of CNTs from 31% to 70%. The performance of Co/CNTs in Fischer-Tropsch synthesis (FTS) was evaluated in a fixed-bed micro-reactor at a temperature of 240 °C and a pressure of 2.0 MPa. The highest CO conversion obtained over Co/CNTs.A.900 was 59% and it dropped by ~3% after 130 h of time-on-stream. However, maximum CO conversion using Co/CNTs.A.600 catalysts was 28% and it decreased rapidly by about 54% after 130 h of time-on-stream. These findings show that the combined acid and thermal pre-treatment of CNTs support at 900 °C has improved the stability and activity of the Co/CNTs catalyst in FTS.

Modified carbon nanotubes by KMnO4 supported iron Fischer–Tropsch catalyst for the direct conversion of syngas to lower olefins

2015 ◽  
Vol 3 (8) ◽  
pp. 4560-4567 ◽  
Author(s):  
Di Wang ◽  
Xiangping Zhou ◽  
Jian Ji ◽  
Xuezhi Duan ◽  
Gang Qian ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Direct Conversion ◽  
Fischer Tropsch ◽  
Lower Olefins ◽  
Modified Carbon Nanotubes ◽  
Supported Iron

The Fe/MnK-CNTs catalyst not only is more active and stable, but also shows higher selectivity of hydrocarbons especially for the lower olefins.

The nature of cobalt species in carbon nanotubes and their catalytic performance in Fischer–Tropsch reaction

2009 ◽  
Vol 19 (48) ◽  
pp. 9241 ◽  
Author(s):  
Hui Zhang ◽  
Christine Lancelot ◽  
Wei Chu ◽  
Jingping Hong ◽  
Andrei Y. Khodakov ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Catalytic Performance ◽  
Fischer Tropsch ◽  
Cobalt Species

Fischer–Tropsch synthesis on mono- and bimetallic Co and Fe catalysts supported on carbon nanotubes

2009 ◽  
Vol 90 (12) ◽  
pp. 1486-1494 ◽  
Author(s):  
Ahmad Tavasoli ◽  
Mariane Trépanier ◽  
Reza M. Malek Abbaslou ◽  
Ajay K. Dalai ◽  
Nicolas Abatzoglou
Keyword(s):  
Carbon Nanotubes ◽  
Tropsch Synthesis ◽  
Fischer Tropsch ◽  
Fischer Tropsch Synthesis ◽  
Fe Catalysts
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