Analysis of corrosion processes kinetics on the surface of metals

Enikeev, Marat; Потемкин, Д.И.; Enikeeva, L. V.; Еникеев, А. Р.; Малеева, М. А.; Snytnikov, P.V.; Gubaydullin, I. M.

doi:10.1016/j.cej.2019.123131

Cited by 22 publications

(6 citation statements)

References 10 publications

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“…Farsi M [a] 3 1 [158][159][160] Thermal cracking Trans-Alkylation Catalytic reforming Gubaydullim Im [a] 3 4 [161][162][163] Pyrolysis Catalytic reforming Corrosion Lu X [a] 3 1 [164][165][166] Combustion Fuels Activated sludges Wu G [a] 3 3…”

Section: Pyrolysis Of Biomassmentioning

confidence: 99%

Analysis of the Applications of Particle Swarm Optimization and Genetic Algorithms on Reaction Kinetics: A Prospective Study for Advanced Oxidation Processes

et al. 2022

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A bibliometric analysis of the Scopus database was implemented to assess the spread of two types of evolutionary algorithms (EAs), genetic algorithms (GA) and particle swarm optimization (PSO), on the study of reaction kinetics. Particular attention was given to applications for advanced oxidation processes (AOPs). The collaborations between countries and authors, as well as the keywords co‐occurrences, were investigated. Finally, the Gompertz and Logistic Substitution models (LSM) were employed to forecast future scenarios. It was observed that GA methods were the preferred algorithms for reaction kinetic studies, and the USA was the most influential country in terms of collaboration, followed by China. On the other hand, there was still poor collaboration for most countries; this was also observed for authors’ collaboration. In addition, literature concerning AOPs was still scarce. The forecasting suggested growth for implementing evolutionary algorithms, especially for the PSO, increasing its popularity regarding GA methods.

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Section: Pyrolysis Of Biomassmentioning

confidence: 99%

Analysis of the Applications of Particle Swarm Optimization and Genetic Algorithms on Reaction Kinetics: A Prospective Study for Advanced Oxidation Processes

et al. 2022

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“…The aluminum content reacts oxygen and forms a layer of Al 2 O 3 that ensure a high oxidation resistence, compared with CuO layer [40]. Also, at high current densities the nickel content shows a tendency to passivity [41].…”

Section: The Electrochemical Testsmentioning

confidence: 99%

Surface, Elemental and Electrochemical Characterizations of Ancient Coins By Non – Destructive Techniques

Ion

David

Gheboianu

2022

Scientific Bulletin of Valahia University - Materials and Mechanics

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The cultural heritage field represents a witness to artifacts values in a continuous evolution, it strongly influences our sense of identity and our behavior as people. To protect these archaeological treasures, different conservation and restoration methods are required. Considering the field of priceless artifacts, our research direction led us to preliminary studies of metallic coins from 20th century through non–destructive techniques. Copper–based coins were subjected to the surface characterization through optical microscopy (OM) in transmitted light, elemental composition analysis using Wavelength Dispersive X-ray Fluorescence (WDXRF) and electrochemical corrosion using Tafel extrapolarization technique. The microscopic investigations showed that the patina layer is due to presence of copper content in coins composition confirmed by X-ray fluorescence spectroscopy technique. Also, the electrochemical tests disclosed different corrosion rate according to each chemical composition of coins. This study provide a broad overview of ancient coins to preserve their value in the future.

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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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Analysis of corrosion processes kinetics on the surface of metals

Cited by 22 publications

References 10 publications

Analysis of the Applications of Particle Swarm Optimization and Genetic Algorithms on Reaction Kinetics: A Prospective Study for Advanced Oxidation Processes

Analysis of the Applications of Particle Swarm Optimization and Genetic Algorithms on Reaction Kinetics: A Prospective Study for Advanced Oxidation Processes

Surface, Elemental and Electrochemical Characterizations of Ancient Coins By Non – Destructive Techniques

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

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