Fabrication of K-promoted iron/carbon nanotubes composite catalysts for the Fischer–Tropsch synthesis of lower olefins

2016 ◽  
Vol 25 (2) ◽  
pp. 311-317 ◽  
Author(s):  
Xuezhi Duan ◽  
Di Wang ◽  
Gang Qian ◽  
John C. Walmsley ◽  
Anders Holmen ◽  
...  
2018 ◽  
Vol 57 (34) ◽  
pp. 11554-11560 ◽  
Author(s):  
Bingxu Chen ◽  
Xinxin Zhang ◽  
Wenyao Chen ◽  
Di Wang ◽  
Nan Song ◽  
...  

ChemCatChem ◽  
2017 ◽  
Vol 9 (16) ◽  
pp. 3086-3086
Author(s):  
Yong Yuan ◽  
Shouying Huang ◽  
Hongyu Wang ◽  
Yifan Wang ◽  
Jian Wang ◽  
...  

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.


ChemCatChem ◽  
2017 ◽  
Vol 9 (16) ◽  
pp. 3088-3089
Author(s):  
Yong Yuan ◽  
Shouying Huang ◽  
Hongyu Wang ◽  
Yifan Wang ◽  
Jian Wang ◽  
...  

2019 ◽  
Vol 378 ◽  
pp. 209-219 ◽  
Author(s):  
Zixuan Ma ◽  
Chenliang Zhou ◽  
Danmei Wang ◽  
Yaxiong Wang ◽  
Wenxiu He ◽  
...  

Sign in / Sign up

Export Citation Format

Share Document