Effect of catalyst shape and multicomponent diffusion flux models on intraparticle transport-kinetic interactions in the gas-phase Fischer-Tropsch synthesis

Fuel ◽  
2020 ◽  
Vol 278 ◽  
pp. 118117 ◽  
Author(s):  
Arvind Nanduri ◽  
Patrick L. Mills
Keyword(s):  
Gas Phase ◽  
Diffusion Flux ◽  
Multicomponent Diffusion ◽  
Tropsch Synthesis ◽  
Fischer Tropsch ◽  
Fischer Tropsch Synthesis ◽  
Transport Kinetic

Silicon carbide foam as a porous support platform for catalytic applications

2016 ◽  
Vol 40 (5) ◽  
pp. 4285-4299 ◽  
Author(s):  
Cuong Duong-Viet ◽  
Housseinou Ba ◽  
Zora El-Berrichi ◽  
Jean-Mario Nhut ◽  
Marc J. Ledoux ◽  
...  
Keyword(s):  
Silicon Carbide ◽  
Liquid Phase ◽  
Gas Phase ◽  
Selective Oxidation ◽  
Tropsch Synthesis ◽  
Fischer Tropsch ◽  
Porous Support ◽  
Fischer Tropsch Synthesis ◽  
Catalytic Applications ◽  
Catalytic Processes

This review provides an overview of the use of foam-structured SiC as a porous support platform in some typical catalytic processes both for gas-phase and liquid-phase reactions, such as H2S selective oxidation, Friedel–Crafts benzoylation and Fischer–Tropsch synthesis.

Enhancing gas phase Fischer–Tropsch synthesis catalyst design

Fuel ◽  
2011 ◽  
Vol 90 (1) ◽  
pp. 174-181 ◽  
Author(s):  
Debalina Dasgupta ◽  
Tomasz Wiltowski
Keyword(s):  
Gas Phase ◽  
Catalyst Design ◽  
Tropsch Synthesis ◽  
Fischer Tropsch ◽  
Fischer Tropsch Synthesis

Methane Formation in Fischer-Tropsch Synthesis: Role of Nanosized Catalyst Particles

2015 ◽  
Vol 35 ◽  
pp. 39-54 ◽  
Author(s):  
Ali Nakhaei Pour ◽  
Seyed Majed Modaresi
Keyword(s):  
Surface Tension ◽  
Gas Phase ◽  
Iron Catalyst ◽  
Iron Carbide ◽  
Tropsch Synthesis ◽  
Experimental Results ◽  
Methane Formation ◽  
Iron Oxide Particles ◽  
Fischer Tropsch ◽  
Fischer Tropsch Synthesis

Concepts of the surface excess energy in the present work have been applied to explain the methane formation in Fischer-Tropsch synthesis by iron catalysts. A series of iron oxide particles doped by adding copper and lanthanum were prepared as a catalyst via precipitation by microemulsion method. Size dependent kinetic expressions for methane formation were derived and evaluated using experimental results. Experimental results show that the methane formation is increased by decreasing the catalyst particle size. The value of surface tension energy (σ) for iron catalyst is calculated in range of 0.047-0.015 J/m2in methane formation mechanism. This value is lower than iron metal and is referred to the presence of iron carbide and gas phase in this catalytic reaction. With a series of complicated mechanisms, methane is produced on the surface of catalyst and in the gas phase as well, this would be elaborated by following paragraphs, thus we can conclude that surface tension of catalyst has less effect on these reactions.

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