Reversible promotional effect of SiO2 modification to Co/Al2O3 catalyst for Fischer–Tropsch synthesis

2010 ◽  
Vol 377 (1-2) ◽  
pp. 134-139 ◽  
Author(s):  
Xiaoyu Sun ◽  
Xuejun Zhang ◽  
Yi Zhang ◽  
Noritatsu Tsubaki
Fuel ◽  
2021 ◽  
Vol 292 ◽  
pp. 120398
Author(s):  
Shupeng Guo ◽  
Zhongyi Ma ◽  
Jungang Wang ◽  
Bo Hou ◽  
Litao Jia ◽  
...  

Catalysts ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 732
Author(s):  
José Antonio Díaz-López ◽  
Jordi Guilera ◽  
Martí Biset-Peiró ◽  
Dan Enache ◽  
Gordon Kelly ◽  
...  

The present work explores the technical feasibility of passivating a Co/γ-Al2O3 catalyst by atomic layer deposition (ALD) to reduce deactivation rate during Fischer–Tropsch synthesis (FTS). Three samples of the reference catalyst were passivated using different numbers of ALD cycles (3, 6 and 10). Characterization results revealed that a shell of the passivating agent (Al2O3) grew around catalyst particles. This shell did not affect the properties of passivated samples below 10 cycles, in which catalyst reduction was hindered. Catalytic tests at 50% CO conversion evidenced that 3 and 6 ALD cycles increased catalyst stability without significantly affecting the catalytic performance, whereas 10 cycles caused blockage of the active phase that led to a strong decrease of catalytic activity. Catalyst deactivation modelling and tests at 60% CO conversion served to conclude that 3 to 6 ALD cycles reduced Co/γ-Al2O3 deactivation, so that the technical feasibility of this technique was proven in FTS.


2020 ◽  
Vol 44 (42) ◽  
pp. 18457-18468
Author(s):  
Maryam Arsalanfar

The effect of various preparation parameters on the catalytic performance and physico-chemical properties of a supported Fe–Mn catalyst was investigated using the RSM method.


2014 ◽  
Vol 53 (6) ◽  
pp. 2157-2166 ◽  
Author(s):  
Wenping Ma ◽  
Gary Jacobs ◽  
Tapan K. Das ◽  
Cornelius Mduduzi Masuku ◽  
Jungshik Kang ◽  
...  

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