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Calculation and confirmation of the kinetic triplet of metallurgical coke gasification with carbon dioxide under isothermal conditions

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Abstract

The present study examines the usefulness of a compound kinetic calculation technology, a technology which is developed from the application of master plots as well as the Arrhenius plot and which is adopted to estimate the kinetic triplet (the mechanism function, the frequency factor, and the activation energy) of metallurgical coke gasification with carbon dioxide under isothermal conditions. We employed master plots for selecting a suitable mechanism function for gasification of metallurgical coke and discovered the Johnson–Mehl–Avrami–Erofe’ev–Kolmogorov model—[− ln(1 − x)]1/m (m = 0.57)—to be the optimum mechanism function. According to this mechanism function, we estimated the Arrhenius parameters (the frequency factor and the activation energy) from the Arrhenius plot, and they are 0.79 s−1 and 72.71 kJ mol−1, respectively; additionally, we established the correctness of kinetic results.

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Acknowledgements

The present study has been sponsored by the National Natural Science Foundation of China (Nos. 51704149 and 51634004).

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Authors and Affiliations

  1. School of Materials and Metallurgy, University of Science and Technology Liaoning, Anshan, 114051, Liaoning, China

    Zhongsuo Liu & Qi Wang

  2. Key Laboratory of Chemical Metallurgy Engineering Liaoning Province, University of Science and Technology Liaoning, Anshan, 114051, Liaoning, China

    Zhongsuo Liu & Qi Wang

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  1. Zhongsuo Liu
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  2. Qi Wang
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Correspondence to Zhongsuo Liu.

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Liu, Z., Wang, Q. Calculation and confirmation of the kinetic triplet of metallurgical coke gasification with carbon dioxide under isothermal conditions. J Therm Anal Calorim 139, 2235–2241 (2020). https://doi.org/10.1007/s10973-019-08660-4

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  • DOI: https://doi.org/10.1007/s10973-019-08660-4

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