Effective control of carbon number distribution during Fischer–Tropsch synthesis over supported cobalt catalyst

2007 ◽  
Vol 8 (9) ◽  
pp. 1329-1335 ◽  
Author(s):  
Xiaohao Liu ◽  
Xiaohong Li ◽  
Kaoru Fujimoto
Keyword(s):  
Cobalt Catalyst ◽  
Carbon Number ◽  
Tropsch Synthesis ◽  
Effective Control ◽  
Fischer Tropsch ◽  
Fischer Tropsch Synthesis ◽  
Carbon Number Distribution ◽  
Number Distribution

Bifunctional cobalt catalyst for the Fischer – Tropsch synthesis of low-freezing diesel fuel – from development to implementation: Part 1. Selection of a commercial sample of the HZSM-5 zeolite component

2021 ◽  
Vol 1 (1-2) ◽  
pp. 30-40
Author(s):  
R. E. Yakovenko ◽  
I. N. Zubkov ◽  
V. G. Bakun ◽  
M. R. Agliullin ◽  
A. N. Saliev ◽  
...  
Keyword(s):  
Diesel Fuel ◽  
Cobalt Catalyst ◽  
Hydrocarbon Composition ◽  
Tropsch Synthesis ◽  
Practical Implementation ◽  
Fischer Tropsch ◽  
Commercial Sample ◽  
Zeolite Sample ◽  
Fischer Tropsch Synthesis ◽  
Composite Mixture

The effect of the quality of various domestic commercial HZSM-5 zeolites on the properties of bifunctional cobalt catalyst represented by a composite mixture was studied in the Fischer – Tropsch synthesis. Activities and selectivities of the catalyst samples were compared. The fractional and hydrocarbon composition of the synthesis products was investigated; viscosity-temperature characteristics of the diesel fuel fraction were estimated. A promising HZSM-5 zeolite sample was selected for practical implementation of the catalytic technology.

Fischer-Tropsch synthesis: Effect of nitric acid pretreatment on graphene-supported cobalt catalyst

2020 ◽  
Vol 599 ◽  
pp. 117608 ◽  
Author(s):  
Mingsheng Luo ◽  
Shuo Li ◽  
Zuoxing Di ◽  
Zhi Yang ◽  
Weichao Chou ◽  
...  
Keyword(s):  
Nitric Acid ◽  
Cobalt Catalyst ◽  
Tropsch Synthesis ◽  
Acid Pretreatment ◽  
Fischer Tropsch ◽  
Fischer Tropsch Synthesis

Fischer–Tropsch synthesis over a novel cobalt catalyst supported on UiO-66

2020 ◽  
Author(s):  
Negin Davoodian ◽  
Ali Nakhaei Pour ◽  
Mohammad Izadyar ◽  
Ali Mohammadi ◽  
Mehdi Vahidi
Keyword(s):  
Cobalt Catalyst ◽  
Tropsch Synthesis ◽  
Fischer Tropsch ◽  
Fischer Tropsch Synthesis

Cobalt Catalysts Preparation and Characterization over Alumina Support for Fischer Tropsch Synthesis

2017 ◽  
Vol 2 (1) ◽  
pp. 51-61
Author(s):  
Nima Mohammadi Taher ◽  
Maedeh Mahmoudi ◽  
Seyyede Shahrzad Sajjadivand
Keyword(s):  
Surface Area ◽  
Cobalt Catalyst ◽  
Cobalt Content ◽  
Tropsch Synthesis ◽  
Cobalt Catalysts ◽  
Fischer Tropsch ◽  
Alumina Support ◽  
Fischer Tropsch Synthesis ◽  
X Ray ◽  
Temperature Programmed

Abstract An investigation was done to develop and characterize the alumina supported cobalt catalyst for Fischer-Tropsch Synthesis to produce biodiesel from biomass with the aim to produce alumina-supported cobalt catalysts containing 7 to 19 wt.% cobalt content. By using incipient wetness impregnation of γ-Al2O3 supports with cobalt nitrate hexahydrate with ethanol and distilled water solutions; the 14 wt.% cobalt content in catalyst was achieved. Nitrogen adsorption-desorption, X-ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), X-ray fluorescence (XRF), H2temperature programmed reduction (H2-TPR), temperature programmed desorption (TPD), temperature programmed oxidation (TPO) and carbon monoxide chemisorption were used for the characterization of the catalysts to attain an appropriate cobalt catalyst. In order to investigate the effect of the impregnation on the crystalline size, surface area and cobalt content, three different impregnation methods with various durations were investigated. In addition, increasing the impregnation duration increased the cobalt content and its dispersion. Based on results, positive effect of the alumina support and impregnation duration on the crystallite size, surface area, and pore diameter, reducibility of the catalyst and cobalt dispersion were investigated. Thus, cobalt catalyst for using in fixed bed reactor to produce biodiesel from biomass through Fischer-Tropsch Synthesis was prepared and characterized.

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