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Thermal Kinetics Modelling of Egyptian rice Husk Calcination in an air Atmosphere |
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PP: 1- 8 |
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Author(s) |
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A.I. Hafez,
E. A. El Zanati,
M. A. Khedr,
R. M. Sabry,
H. M. Aly,
H. M. Aly,
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Abstract |
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| In Egypt, large amounts of rice husks are generated as by-product waste material from rice-producing industry and as such, has posed disposal problems. This solid waste can be used to supplement adsorbents material, namely silica, from its ashes. Further, rice husk can be considered as source of renewable biomass producing energy through the process of thermochemical conversion. Therefrom, a clear understanding of the influence of thermal properties of rice husk on its decomposition is mandatory. In this work, a dynamic model was developed to accounts for the thermal degradation performance of Egyptian rice husk. The predicted kinetic parameters, resulted from model simulation solved using MATLAB_R2020a, Simulink software, were in good agreement with experimental data generated from thermal decomposition of rice husk, examined under non-isothermal heating at different heating rates (5 oC, 10 oC and 20 oC) in dynamic air atmosphere. The results of the proposed model were further verified by comparison with those of analytical methods, namely FWO and KAS methods, which gave a reliable value of kinetic parameters. |
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