Kinetic Modeling of Heterogeneous Oxidative Coupling of Methane by Genetic and Marquardt Algorithms: Mechanistic Aspects
Publish place: 06th International Congress on Chemical Engineering
Publish Year: 1388
نوع سند: مقاله کنفرانسی
زبان: English
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شناسه ملی سند علمی:
ICHEC06_339
تاریخ نمایه سازی: 1 مهر 1388
Abstract:
The kinetic models of oxidative coupling of methane catalyzed by perovskite were studied in a fixed bed flow reactor. At atmospheric pressure, the reactions were carried out at 725-775◦C, inlet methane to oxygen ratios of 2 to 4.5 and GHSV of 100 min-1. Correlations of the kinetic data have been performed with the proposed mechanisms. The selected equations have been regressed with experimental data accompanied by genetic algorithm in order to obtain optimized parameters. After, investigation the Langmuir-Hinshelwood mechanism was selected as the best mechanism and Arrhenius and adsorption parameters of this model have been obtained by linear regression. In this research the Marquardt algorithm has also been used for optimization and its results were compared with genetic algorithm.
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Authors
Nastaran Razmi Farooji
Researcher of Chemical Engineering, Faculty of Engineering, Tehran University
Ali Vatani
Associate Professor of Chemical Engineering Department, Faculty of Engineering, Tehran University
Shahrnaz Mokhtari
Researcher of Chemical Engineering, Iran Polymer and Petrochemical Institute
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