Attrition Resistance of Supports for Iron Fischer−Tropsch Catalysts

2003 ◽  
Vol 42 (17) ◽  
pp. 4001-4008 ◽  
Author(s):  
Hien N. Pham ◽  
Lech Nowicki ◽  
Jian Xu ◽  
Abhaya K. Datye ◽  
Dragomir B. Bukur ◽  
...  
Keyword(s):  
Fischer Tropsch ◽  
Attrition Resistance

Spray-Dried Iron Fischer−Tropsch Catalysts. 2. Effect of Carburization on Catalyst Attrition Resistance

2001 ◽  
Vol 40 (5) ◽  
pp. 1320-1328 ◽  
Author(s):  
Rong Zhao ◽  
James G. Goodwin ◽  
K. Jothimurugesan ◽  
Santosh K. Gangwal ◽  
James J. Spivey
Keyword(s):  
Fischer Tropsch ◽  
Attrition Resistance ◽  
Spray Dried

Spray-Dried Iron Fischer−Tropsch Catalysts. 1. Effect of Structure on the Attrition Resistance of the Catalysts in the Calcined State

2001 ◽  
Vol 40 (4) ◽  
pp. 1065-1075 ◽  
Author(s):  
Rong Zhao ◽  
James G. Goodwin, ◽  
K. Jothimurugesan ◽  
Santosh K. Gangwal ◽  
James J. Spivey
Keyword(s):  
Fischer Tropsch ◽  
Attrition Resistance ◽  
Spray Dried ◽  
Effect Of Structure

Attrition Resistance and Catalytic Performance of Spray-Dried Iron Fischer−Tropsch Catalysts in a Stirred-Tank Slurry Reactor

2004 ◽  
Vol 43 (6) ◽  
pp. 1359-1365 ◽  
Author(s):  
Dragomir B. Bukur ◽  
Wen-Ping Ma ◽  
Victor Carreto-Vazquez ◽  
Lech Nowicki ◽  
Adeyinka A. Adeyiga
Keyword(s):  
Catalytic Performance ◽  
Slurry Reactor ◽  
Stirred Tank ◽  
Fischer Tropsch ◽  
Attrition Resistance ◽  
Spray Dried

scholarly journals Development of an Iron-Based Fischer–Tropsch Catalyst with High Attrition Resistance and Stability for Industrial Application

Catalysts ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 908
Author(s):  
Quan Lin ◽  
Meng Cheng ◽  
Kui Zhang ◽  
Weizhen Li ◽  
Peng Wu ◽  
...  
Keyword(s):  
Photoelectron Spectroscopy ◽  
Silica Content ◽  
Fischer Tropsch ◽  
Physical Test ◽  
X Ray ◽  
Transmission Electron ◽  
Iron Based ◽  
Continuously Stirred Tank Reactor ◽  
Temperature Programmed ◽  
Attrition Resistance

In order to develop an iron-based catalyst with high attrition resistance and stability for Fischer–Tropsch synthesis (FTS), a series of experiments were carried out to investigate the effects of SiO2 and its hydroxyl content and a boron promoter on the attrition resistance and catalytic behavior of spray-dried precipitated Fe/Cu/K/SiO2 catalysts. The catalysts were characterized by means of N2 physisorption, nuclear magnetic resonance (NMR), X-ray diffraction (XRD), Raman spectrum, X-ray photoelectron spectroscopy (XPS), H2-thermogravimetric analysis (H2-TGA), temperature-programmed reduction and hydrogenation (TPR and TPH), and scanning and transmission electron microscopy (SEM and TEM). The FTS performance of the catalysts was tested in a slurry-phase continuously stirred tank reactor (CSTR), while the attrition resistance study included a physical test with the standard method and a chemical attrition test under simulated reaction conditions. The results indicated that the increase in SiO2 content enhances catalysts’ attrition resistance and FTS stability, but decreases activity due to the suppression of further reduction of the catalysts. Moreover, the attrition resistance of the catalysts with the same silica content was greatly improved with an increase in hydroxyl number within silica sources, as well as the FTS activity and stability to some degree. Furthermore, the boron element was found to show remarkable promotion of FTS stability, and the promotion mechanism was discussed with regard to probable interactions between Fe and B, K and B, and SiO2 and B, etc. An optimized catalyst based on the results of this study was finalized, scaled up, and successfully applied in a megaton industrial slurry bubble FTS unit, exhibiting excellent FTS performance.

Fischer-Tropsch waxes VII. The thermal conductivity of hard wax

1974 ◽  
Vol 24 (1-2) ◽  
pp. 81-91 ◽  
Author(s):  
Johannes H. Le Roux ◽  
Roy D. F. Smith ◽  
Richard Turner ◽  
Onno Weidema
Keyword(s):  
Thermal Conductivity ◽  
Fischer Tropsch

HEAT EXPLOSION IN FISCHER-TROPSCH CATALYTIC GRANULE WITH LOCALIZED COBALT MICROPARTICLES

2018 ◽  
Author(s):  
Igor V. Derevich ◽  
V. Ermolaev ◽  
V. Mordkovich ◽  
I. Solomonik ◽  
A. Fokina
Keyword(s):  
Fischer Tropsch

Carbon Chain Growth by Sequential Reactions of CO and CO2 with a Transition Metal Carbonyl Complex

2018 ◽  
Author(s):  
Richard Kong ◽  
Mark Crimmin
Keyword(s):  
Transition Metal ◽  
Metal Carbonyl ◽  
Carbon Chain ◽  
Chain Growth ◽  
Carbonyl Complex ◽  
Fischer Tropsch ◽  
Carbon Chains ◽  
Sequential Coupling ◽  
Energy Economy ◽  
Sequential Reactions

<i>The formation of carbon chains by the coupling of COx (X = 1 or 2) units on transition metals is a fundamental step relevant to Fischer-Tropsch catalysis. Fischer-Tropsch catalysis produces energy dense liquid hydrocarbons from synthesis gas (CO and H2) and has been a mainstay of the energy economy since its discovery nearly a century ago. Despite detailed studies aimed at elucidating the steps of catalysis, experimental evidence for chain growth (Cn to Cn+1 ; n > 2) from the reaction of CO with metal complexes is unprecedented. In this paper, we show that carbon chains can be grown from sequential reactions of CO or CO2 with a transition metal carbonyl complex. By exploiting the cooperative effect of transition and main group metals, we document the first example of chain propagation from sequential coupling of CO units (C1 to C3 to C4), along with the first example of incorporation of CO2 into the growing carbon chain.</i><br>

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