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Non-isothermal kinetics of metallurgical coke gasification by carbon dioxide

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Abstract

Under non-isothermal conditions, thermogravimetric analysis was applied to study carbon dioxide gasification of three metallurgical cokes. The cokes selected for the study were named Coke A, Coke B and Coke C. The experimental data are fitted using four common gas-solid kinetic models: the homogeneous model, the sharp interface model, the traditional model and the random pore model. It is found that the random pore model most closely reflects the kinetic behavior of coke gasification characteristics. Using the random pore model, the apparent activation energies for gasification of Coke A, Coke B, and Coke C were calculated to be 139.08, 127.78, and 116.32 kJ mol–1, respectively.

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Authors and Affiliations

  1. School of Materials and Metallurgy and Key Laboratory of Chemical Metallurgy Engineering, 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. Non-isothermal kinetics of metallurgical coke gasification by carbon dioxide. Coke Chem. 60, 140–143 (2017). https://doi.org/10.3103/S1068364X17040020

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  • DOI: https://doi.org/10.3103/S1068364X17040020

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