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Using isothermal kinetic results to estimate the kinetic triplet of the pyrolysis of high density polyethylene

✍ Scribed by Seungdo Kim; Young-Chun Kim

Book ID
104019285
Publisher
Elsevier Science
Year
2005
Tongue
English
Weight
152 KB
Volume
73
Category
Article
ISSN
0165-2370

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✦ Synopsis

The Arrhenius parameters and the reaction model of the pyrolysis of high density polyethylene (HDPE) have been estimated from isothermal kinetic results. We introduced a custom-made thermobalance that is able to record mass decrease with time under pure static condition. A best fit of the theoretical reduced-time plot (RTP) to an experimental one led to the conclusion that ''contracting cylinder'' model would represent the HDPE pyrolysis. The Arrhenius parameters obtained from the model-fitting method, using the contracting cylinder model, agreed excellently with the values from the model-free methods using both isothermal and non-isothermal measurements.

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