Highly dispersed cobalt on N-doped carbon nanotubes with improved Fischer–Tropsch synthesis activity

2014 ◽  
Vol 47 ◽  
pp. 54-57 ◽  
Author(s):  
Tingjun Fu ◽  
Zhenhua Li
Keyword(s):  
Carbon Nanotubes ◽  
Tropsch Synthesis ◽  
Fischer Tropsch ◽  
Fischer Tropsch Synthesis ◽  
Highly Dispersed ◽  
Synthesis Activity

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.

Enhancing the Fischer–Tropsch Synthesis Activity of Co-based Catalysts by Adding ZrO x to the SiO2 Support and Chelating Ligands to the Co-precursor

2011 ◽  
Vol 141 (8) ◽  
pp. 1207-1214
Author(s):  
Naoto Koizumi ◽  
Yasuhiko Hayasaka ◽  
Yukiya Ibi ◽  
Shigenobu Suzuki ◽  
Takayoshi Shindo ◽  
...  
Keyword(s):  
Tropsch Synthesis ◽  
Chelating Ligands ◽  
Fischer Tropsch ◽  
Fischer Tropsch Synthesis ◽  
Synthesis Activity ◽  
Sio2 Support

Fischer-Tropsch Synthesis: Activity and Selectivity of χ-Fe5C2 and θ-Fe3C Carbides

2016 ◽  
pp. 15-30 ◽  
Author(s):  
Muthu Gnanamani ◽  
Hussein Hamdeh ◽  
Gary Jacobs ◽  
Wilson Shafer ◽  
Dennis Sparks ◽  
...  
Keyword(s):  
Tropsch Synthesis ◽  
Fischer Tropsch ◽  
Fischer Tropsch Synthesis ◽  
Synthesis Activity

The effect of Mn on the performance of MCF-supported highly dispersed iron catalysts for Fischer–Tropsch synthesis

2020 ◽  
Vol 10 (2) ◽  
pp. 502-509 ◽  
Author(s):  
Siyuan Huang ◽  
Chengchao Liu ◽  
Yao Chen ◽  
Jingping Hong ◽  
Yanxi Zhao ◽  
...  
Keyword(s):  
Tropsch Synthesis ◽  
High Loading ◽  
Iron Catalysts ◽  
High Dispersion ◽  
Fischer Tropsch ◽  
Fischer Tropsch Synthesis ◽  
Highly Dispersed ◽  
Supported Iron

MCF supported iron catalysts with high loading (30%) and high dispersion were prepared. The Mn promoter influenced the reducibility and carbonization of supported iron catalysts. Higher C5+ selectivity was achieved by appropriate Mn promotion.

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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