Numerical simulation of the catalytic process of isomerization of pentane-hexane cut

Faskhutdinov, A. G.; Faskhutdinova, R. I.; Arefyev, I. A.; Enikeeva, L. V.

doi:10.1088/1742-6596/1368/4/042016

Cited by 6 publications

(2 citation statements)

References 10 publications

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“…Here G is a mass flow of the mixture, kg/(m 2 s); y i is a mass fraction of the i-th component; ν i is a stoichiometric coefficient of the i-th component; m i is a molar mass of the i-th component, kg/mol; l is coordinate along the catalytic layer, m; L is a length of the catalytic layer, m. The length of the catalytic layer is 0.008 m. The mathematical model of chemical kinetics problems is a system of differential equations that describes the variations in substance concentrations over time according to the rates of reaction stages. The system of differential equations is a Cauchy problem containing the initial data [13][14][15]. The numerical solving of such a system of equations is a direct problem of chemical kinetics.…”

Section: Mathematical Modelmentioning

confidence: 99%

Gravitational search algorithm for determining the optimal kinetic parameters of propane pre-reforming reaction

Enikeeva

Потемкин

Усков

et al. 2021

Reac Kinet Mech Cat

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The article describes the gravitational search algorithm and its application to solve the inverse problem of chemical kinetics. It is shown that metaheuristic algorithms have become more and more popular recently. In this regard, it is logical to apply these algorithms to various optimization problems. The optimization problem is formulated on the example of solving the inverse problem of chemical kinetics. The process under study is the pre-reformation of propane into a methane-rich gas on a Ni catalyst, which is an industrially important chemical process. The article briefly describes the algorithm and its pseudocode, and then compares the performance of the gravitational search algorithm with other metaheuristic methods. The algorithm showed adequate results and was applied to solve a specific technological problem. Using this algorithm, the inverse problem of chemical kinetics was solved and the optimal values of the kinetic parameters of the reaction were found. It was proved that the model correctly described the available experimental data. Moreover, the sensitivity analysis of the algorithm parameters was performed.

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Section: Mathematical Modelmentioning

confidence: 99%

Gravitational search algorithm for determining the optimal kinetic parameters of propane pre-reforming reaction

Enikeeva

Потемкин

Усков

et al. 2021

Reac Kinet Mech Cat

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show abstract

“…Faskhutdinov et al [25] studied the transformation of pentane and hexane fractions by using a three-reactor block in catalytic isomerization operation. They evolved a mathematical kinetic model for isomerization involving (102) parameters kinetic.…”

Section: Introductionmentioning

confidence: 99%

Kinetic Modeling of Light Naphtha Hydroisomerization in an Industrial Universal Oil Products Penex™ Unit

Hamied¹,

Shakor²,

Sadeiq³

et al. 2023

Energy Engineering

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Recently, the isomerization of light naphtha has been increasingly significant in assisting refiners in meeting sternness specifications for gasoline. Isomerization process provides refiners with the advantage of reducing sulfur, olefin, and benzene in the gasoline basin without significantly victimizing the octane. The mathematical modeling of a chemical reaction is a critical tool due to it can used to optimize the experimental data to estimate the optimum operating conditions for industrial reactors. This paper describes light naphtha isomerization reactions over a Pt/Al 2 O 3 -Cl catalyst at the Al-Dura Oil Refinery (Baghdad, Iraq) using a newly developed universal mathematical model. The proposed kinetic model involves 117 isomerization reactions and 90 cracking reactions to describe 52 real components graded from methane to n-octane. A Genetic Algorithm stochastic optimization technique applied in MATLAB R2020a software was employed to estimate the optimal set of kinetic parameters. The calculated activation energies for hydrocracking reactions was found to be higher than the other reactions because of hydrocracking reactions occur at higher range of temperatures. By benchmarking between the experimental and theoretical results for all 117 data sets, the mean absolute error was obtained to be 0.00360 for all 52 components. Also, a positive effect of increasing reaction temperatures was recognized on enhancing the research octane number (RON).

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Modeling and optimization of the catalytic isomerization of the pentane-hexane fraction with maximization of individual high-octane components yield

Enikeeva

Faskhutdinov²,

Коледина

et al. 2021

Reac Kinet Mech Cat

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Numerical simulation of the catalytic process of isomerization of pentane-hexane cut

Cited by 6 publications

References 10 publications

Gravitational search algorithm for determining the optimal kinetic parameters of propane pre-reforming reaction

Gravitational search algorithm for determining the optimal kinetic parameters of propane pre-reforming reaction

Kinetic Modeling of Light Naphtha Hydroisomerization in an Industrial Universal Oil Products Penex™ Unit

Modeling and optimization of the catalytic isomerization of the pentane-hexane fraction with maximization of individual high-octane components yield

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