THE INFLUENCE OF KINETIC PARAMETERS ON THE FISCHER-TROPSCH PRODUCT DISTRIBUTION

1989 ◽  
Vol 7 (8) ◽  
pp. 1139-1177 ◽  
Author(s):  
Jin Wang ◽  
B.W. Wojciechowski
Keyword(s):  
Kinetic Parameters ◽  
Product Distribution ◽  
Fischer Tropsch

Prediction of Fischer–Tropsch Synthesis Kinetic Parameters Using Neural Networks

2014 ◽  
Vol 9 (2) ◽  
pp. 97-103 ◽  
Author(s):  
Fabiano A. N. Fernandes ◽  
Francisco E. Linhares-Junior ◽  
Samuel J. M. Cartaxo
Keyword(s):  
Neural Networks ◽  
Kinetic Parameters ◽  
Kinetic Mechanism ◽  
Product Distribution ◽  
Operating Conditions ◽  
Tropsch Synthesis ◽  
Polymerization Reaction ◽  
Fischer Tropsch ◽  
Specific Product ◽  
Fischer Tropsch Synthesis

Abstract The kinetic mechanism of the Fischer–Tropsch synthesis (FTS) is complex resembling a polymerization reaction. The kinetic rate constants for initiation, propagation and termination steps and the constants for the equilibrium reactions for methylene formation (in situ monomer) need to be estimated. A mathematical model for the FTS allows for simulating several operating conditions and determining the best operating conditions to produce a specific product distribution, so the kinetic parameters must be statistically valid. This work used neural networks (NNs) to estimate the FTS kinetic parameters, instead of using methods based on least squared error. The results show that NNs with three hidden layers were able to output good estimates of the kinetic parameters with less than 5% of deviation.

scholarly journals Progress in Reactors for High-Temperature Fischer–Tropsch Process: Determination Place of Intensifier Reactor Perspective

2014 ◽  
Vol 12 (1) ◽  
pp. 639-664 ◽  
Author(s):  
Samrand Saeidi ◽  
Masoud Talebi Amiri ◽  
Nor Aishah Saidina Amin ◽  
Mohammad Reza Rahimpour
Keyword(s):  
High Temperature ◽  
Process Parameters ◽  
Membrane Reactor ◽  
Product Distribution ◽  
Production Yield ◽  
Fischer Tropsch ◽  
By Products

Abstract High-temperature Fischer–Tropsch (HTFT) process aims to produce lighter cuts such as gasoline and diesel. For many years there have been studies and improvements on HTFT process to make the existing reactors more efficient. Recent studies proposed new configurations such as dual-type membrane reactor and coupling configurations reactor, which improved the performances of this process. This achievement persuades us to update the existing knowledge about the available reactors for HTFT process. In this article, features and performances overview of two classes of reactors are reviewed. The first class consists of the reactors which are based on older studies, and the second one includes recent studies which are called product intensifier reactors. Finally, it is shown that the product intensifier reactors have higher CO conversions and lower selectivity of undesired by-products which results in higher production yield of gasoline. Furthermore, the place of product intensifier reactor among common reactors with regard to the influence of the process parameters on the product distribution has been estimated.

Effect of CO Conversion on the Product Distribution of a Co/Al2O3 Fischer–Tropsch Synthesis Catalyst Using a Fixed Bed Reactor

2012 ◽  
Vol 142 (11) ◽  
pp. 1382-1387 ◽  
Author(s):  
Dragomir B. Bukur ◽  
Zhendong Pan ◽  
Wenping Ma ◽  
Gary Jacobs ◽  
Burtron H. Davis
Keyword(s):  
Fixed Bed ◽  
Product Distribution ◽  
Tropsch Synthesis ◽  
Fixed Bed Reactor ◽  
Fischer Tropsch ◽  
Fischer Tropsch Synthesis ◽  
Co Conversion

Modeling the Fischer–Tropsch Product Distribution and Model Implementation

2015 ◽  
Vol 10 (3) ◽  
pp. 147-159 ◽  
Author(s):  
Magne Hillestad
Keyword(s):  
Finite Number ◽  
Product Distribution ◽  
Tropsch Synthesis ◽  
Considerable Reduction ◽  
Fischer Tropsch ◽  
Fischer Tropsch Synthesis ◽  
Component Distribution ◽  
Reduction Of Dimensionality

Abstract The main purpose of this paper is to provide a framework to model a consistent product distribution from the Fischer–Tropsch synthesis. We assume the products follow the Anderson–Schulz–Flory distribution and that there is no chain limitation. Deviation from the ASF distribution is taken into account. In order to implement such a model it is necessary to aggregate reactions into a finite number of reactions and to group components into lumps of components. Here, the component distribution within each lump is described by three parameters, and it is shown how these parameters are modeled. The method gives a considerable reduction of dimensionality and it is demonstrated that the component distribution within the lumps can be reconstructed with accuracy.

Reaction modeling on the phosphorous-treated Ru/Co/Zr/SiO2 Fischer–Tropsch catalyst with the estimation of kinetic parameters and hydrocarbon distribution

Fuel ◽  
2011 ◽  
Vol 90 (4) ◽  
pp. 1383-1394 ◽  
Author(s):  
Seung-Ho Kwack ◽  
Jong Wook Bae ◽  
Myung-June Park ◽  
Seung-Moon Kim ◽  
Kyoung-Su Ha ◽  
...  
Keyword(s):  
Kinetic Parameters ◽  
Fischer Tropsch ◽  
Hydrocarbon Distribution

scholarly journals Aqueous-phase reforming of Fischer-Tropsch alcohols over nickel-based catalysts to produce hydrogen: Product distribution and reaction pathways

2018 ◽  
Vol 567 ◽  
pp. 112-121 ◽  
Author(s):  
Irene Coronado ◽  
Martina Pitínová ◽  
Reetta Karinen ◽  
Matti Reinikainen ◽  
Riikka L. Puurunen ◽  
...  
Keyword(s):  
Aqueous Phase ◽  
Product Distribution ◽  
Reaction Pathways ◽  
Fischer Tropsch ◽  
Aqueous Phase Reforming
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