Pyrolysis of Low and High Density Polyethylene. Part I: Non-isothermal Pyrolysis Kinetics

Thermal decomposition kinetics of low- and high-density polyethylene (LDPE, HDPE) were investigated. Thermal degradation of raw and waste LDPE and HDPE was performed using a thermogravimetric analyzer (TGA) in nitrogen atmosphere under non-isothermal conditions. Heating rates between 5 and 50 K/min...

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Bibliographic Details
Published in:Energy sources. Part A, Recovery, utilization, and environmental effects Recovery, utilization, and environmental effects, 2008-03, Vol.30 (5), p.385-391
Main Authors: Kayacan, I, Dogan, O M
Format: Article
Language:English
Subjects:
kinetic analysis
polyethylene
TGA
thermal degradation
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Summary:Thermal decomposition kinetics of low- and high-density polyethylene (LDPE, HDPE) were investigated. Thermal degradation of raw and waste LDPE and HDPE was performed using a thermogravimetric analyzer (TGA) in nitrogen atmosphere under non-isothermal conditions. Heating rates between 5 and 50 K/min were employed in TGA experiments. First-order decomposition reaction was assumed, and for the kinetic analysis an integral method was used. The apparent activation energy (E a ) and the pre-exponential factor (k o ) were evaluated. It was found that value of the kinetic parameters and apparent activation energy of HDPE were larger than the LDPE.
ISSN:1556-7036
1556-7230
DOI:10.1080/15567030701457079