Bulk and surface structure of a Ni Fe/Al2O3 catalyst for Fischer-Tropsch synthesis studied by Mössbauer, infrared spectroscopy and magnetic methods

1992 ◽  
Vol 69 (1-4) ◽  
pp. 803-806 ◽  
Author(s):  
E. Boellaard ◽  
A. M. van der Kraan ◽  
J. W. Geus
Keyword(s):  
Infrared Spectroscopy ◽  
Surface Structure ◽  
Tropsch Synthesis ◽  
Fischer Tropsch ◽  
Fischer Tropsch Synthesis ◽  
Magnetic Methods ◽  
Al2o3 Catalyst

Effect of Ba on the catalytic performance of Co-Ru/Al2O3 catalyst for Fischer-Tropsch synthesis

Fuel ◽  
2021 ◽  
Vol 292 ◽  
pp. 120398
Author(s):  
Shupeng Guo ◽  
Zhongyi Ma ◽  
Jungang Wang ◽  
Bo Hou ◽  
Litao Jia ◽  
...  
Keyword(s):  
Catalytic Performance ◽  
Tropsch Synthesis ◽  
Fischer Tropsch ◽  
Fischer Tropsch Synthesis ◽  
Al2o3 Catalyst

scholarly journals Passivation of Co/Al2O3 Catalyst by Atomic Layer Deposition to Reduce Deactivation in the Fischer–Tropsch Synthesis

Catalysts ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 732
Author(s):  
José Antonio Díaz-López ◽  
Jordi Guilera ◽  
Martí Biset-Peiró ◽  
Dan Enache ◽  
Gordon Kelly ◽  
...  
Keyword(s):  
Atomic Layer Deposition ◽  
Atomic Layer ◽  
Tropsch Synthesis ◽  
Catalyst Stability ◽  
Fischer Tropsch ◽  
Technical Feasibility ◽  
Fischer Tropsch Synthesis ◽  
Layer Deposition ◽  
Co Conversion ◽  
Al2o3 Catalyst

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.

Fischer–Tropsch synthesis over the Fe–Mn/Al2O3 catalyst: modeling and optimization of light olefins using the RSM method

2020 ◽  
Vol 44 (42) ◽  
pp. 18457-18468
Author(s):  
Maryam Arsalanfar
Keyword(s):  
Chemical Properties ◽  
Catalytic Performance ◽  
Tropsch Synthesis ◽  
Light Olefins ◽  
Fischer Tropsch ◽  
Fischer Tropsch Synthesis ◽  
Modeling And Optimization ◽  
Physico Chemical ◽  
Al2o3 Catalyst

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.

Fischer–Tropsch Synthesis: Kinetics and Water Effect on Methane Formation over 25%Co/γ-Al2O3 Catalyst

2014 ◽  
Vol 53 (6) ◽  
pp. 2157-2166 ◽  
Author(s):  
Wenping Ma ◽  
Gary Jacobs ◽  
Tapan K. Das ◽  
Cornelius Mduduzi Masuku ◽  
Jungshik Kang ◽  
...  
Keyword(s):  
Tropsch Synthesis ◽  
Methane Formation ◽  
Water Effect ◽  
Fischer Tropsch ◽  
Fischer Tropsch Synthesis ◽  
Al2o3 Catalyst
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