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

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.

2020 ◽  
Vol 9 (3) ◽  
pp. 88-93
Author(s):  
Uy Do Pham Noa ◽  
Huan Nguyen Manh ◽  
Loc Hoang Van ◽  
Chien Luc Minh ◽  
Giang Nguyen Thi Chau ◽  
...  

Cobalt-based catalyst supported on γ-Al2O3­ was prepared by impregnation method and loaded on ceramic monolith-structured substrate by wash-coating slurry method. Physico-chemical properties of the catalysts were characterized by X-ray diffraction (XRD), Brunauer–Emmett–Teller (BET) specific surface area and H2 temperatured-programmed reduction (H2-TPR). Activity of the catalysts for Fischer-Tropsch synthesis was investigated in a tubular reactor in a temperature range of 200-275 oC at 20 bar and GHSV = 3000 h-1. Co/γ-Al2O3 catalyst loaded on ceramic monolith-structured substrate enhanced efficacy of Fischer-Tropsch synthesis by increasing and stabilizing CO conversion and C5+ selectivity, compared to Co/γ-Al2O3 powder catalyst.


Fuel ◽  
2021 ◽  
Vol 292 ◽  
pp. 120398
Author(s):  
Shupeng Guo ◽  
Zhongyi Ma ◽  
Jungang Wang ◽  
Bo Hou ◽  
Litao Jia ◽  
...  

Author(s):  
Reza Roknabadi ◽  
Ali Akbar Mirzaei ◽  
Hossein Atashi

The effects of nanocatalyst composition and calcination parameters on the performance of the Fe–Mn–Ce ternary nanocatalysts supported on alumina granules in a laboratory fixed bed microreactor have been evaluated. Nanocatalysts were synthesized by incipient wetness impregnation under vacuum method (simultaneous impregnation of metal species). The samples used for hydrogenation of carbon monoxide via Fischer-Tropsch synthesis. The optimum nanocatalyst composition for production of light olefins (C=2 – C=4) from synthesis gas is 75 wt%Fe–20 wt%Mn–5 wt%Ce. The calcination parameters (temperature, time and atmosphere) were investigated and their effects on the structure and performance of the nanocatalysts were determined. The maximum ratio of olefins/(methane + paraffin) and the best activity and selectivity belonged to the nanocatalyst which was calcined in static air at 500 °C for 7 h. The nanocatalyst precursors and calcined samples (fresh and used) were characterized by XRD, N2 physisorption, FE‒SEM, EDAX, MAP, TG, DSC, and H2–TPR. The present study results confirm that the structural, morphological and physic-chemical properties of the nanocatalyst have been impressed with metal species and calcination parameters.


2013 ◽  
Vol 10 (3/4) ◽  
pp. 313 ◽  
Author(s):  
Luu Cam Loc ◽  
Lac Kien Trieu ◽  
Ho Si Thoang ◽  
Huynh Thi My Trang ◽  
Nguyen Manh Huan ◽  
...  

Fuel ◽  
2019 ◽  
Vol 256 ◽  
pp. 115911 ◽  
Author(s):  
Shupeng Guo ◽  
Qiang Wang ◽  
Min Wang ◽  
Zhongyi Ma ◽  
Jungang Wang ◽  
...  

2018 ◽  
Vol 8 (1) ◽  
pp. 210-220 ◽  
Author(s):  
Lide Oar-Arteta ◽  
María José Valero-Romero ◽  
Tim Wezendonk ◽  
Freek Kapteijn ◽  
Jorge Gascon

The synthesis of MOF/AlOOH derived composites enhances the selectivity towards light olefins in HTFTS and the mechanical stability of the catalysts.


2021 ◽  
Author(s):  
Liang Wei ◽  
Jian Chen ◽  
Shuai Lyu ◽  
Chengchao Liu ◽  
Yanxi Zhao ◽  
...  

The delicate balance between dispersion and reduction of the Co-based Fischer–Tropsch synthesis catalyst is the golden key to enhancing catalytic performance, which highly depends on an optimized metal–support interaction. In...


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