Fischer–Tropsch synthesis over carbon nanotubes supported cobalt catalysts in a fixed bed reactor: Influence of acid treatment

2009 ◽  
Vol 90 (3) ◽  
pp. 367-374 ◽  
Author(s):  
Mariane Trépanier ◽  
Ahmad Tavasoli ◽  
Ajay K. Dalai ◽  
Nicolas Abatzoglou
2013 ◽  
Vol 56 (9-10) ◽  
pp. 730-736 ◽  
Author(s):  
A. Lillebø ◽  
S. Håvik ◽  
E. A. Blekkan ◽  
A. Holmen

Symmetry ◽  
2018 ◽  
Vol 10 (11) ◽  
pp. 572 ◽  
Author(s):  
Omid Akbarzadeh ◽  
Noor Mohd Zabidi ◽  
Yasmin Abdul Wahab ◽  
Nor Hamizi ◽  
Zaira Chowdhury ◽  
...  

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.


2012 ◽  
Vol 142 (11) ◽  
pp. 1382-1387 ◽  
Author(s):  
Dragomir B. Bukur ◽  
Zhendong Pan ◽  
Wenping Ma ◽  
Gary Jacobs ◽  
Burtron H. Davis

2018 ◽  
Vol 39 (4) ◽  
pp. 540-547 ◽  
Author(s):  
Seon-Ju Park ◽  
Geunjae Kwak ◽  
Yun-Jo Lee ◽  
Ki-Won Jun ◽  
Yong Tae Kim

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