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首页> 外文期刊>Journal of polymer engineering >Kinetic study of the pyrolysis of polypropylene over natural clay
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Kinetic study of the pyrolysis of polypropylene over natural clay

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Clay is widely used in numerous industrial activities; however, its application as an efficient catalyst for the decomposition of plastic waste on a commercial scale is scanty. Therefore, in this study, we have made efforts to use natural clay as the catalyst for the thermal decomposition of polypropylene in a pyrolysis setup. The pyrolysis oil obtained was found rich in hydrocarbons ranging from C-8-C-35. Kinetics of the pyrolysis reaction was determined utilizing thermog-ravimetric data and the activation energy (E) and A-factor were observed as 70.33-94.80 kJ/mol and 6 x 10(5)-2.3 x 10(8) min(-1) using the Ozawa-Flynn-Wall method and 58.19-74.82 kJ/mol and 4.1 x 10(2)-4.2 x 10(3) min(-1) applying Tang Wanjun equation. The activation energy was found to increase with enhancement in conversion presenting a complex decomposition reaction. Comparing the activation energy determined in this work with previous studies confirmed that natural clay has reduced E of decomposition reaction at high fraction conversion. The pyrolysis results supported with the kinetic investigation in this work would have potential applications in disposing of plastic waste on an industrial scale and a step forward in the field of waste management.

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