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Research Article Open access CC BY 4.0

Kinetic and Thermodynamic Study on the Pyrolysis of Low Density Polyethylene in the Production of Polyethylene Wax

Chinenye Faith Okey-Onyesolu, Chukwunonso Chukwuzuloke Okoye, Marcel Ikenna Ejimofor, Ikenna Chukwudi Nwokedi

Asian Journal of Advanced Research and Reports · pp. 20–25 · Published 19 May 2023

10.9734/ajarr/2023/v17i8501

Abstract

Polyethylene wax was obtained from pyrolysis experiments on Low Density Polyethylene (LDPE) wastes using a muffle furnace in inert condition. 60 – 80% of the initial mass of wax were obtained as heating was added at a rate of 10oC/min. Operating conditions for the reaction were 400 – 450oC over time of 30 – 50min and effects of these parameters were discussed. Using Friedman’s iso-conversional model, the kinetic parameters - activation energy, pre-exponential factor and frequency factor were 58.71kJ/mol, 13.726E+12/s and 914378.61 respectively. Also, spontaneity of LDPE pyrolysis occurs at high temperatures and these were validated from the calculated thermodynamic parameters.

Low density polyethylene pyrolysis wax thermodynamics studies

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