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Pyrolysis Behavior and Kinetics of Polyurethane Insulation Materials from Waste Refrigerators
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Pyrolysis Behavior and Kinetics of Polyurethane Insulation Materials from Waste Refrigerators

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Abstract:

Pyrolysis characteristics and kinetics of polyurethane insulation materials from waste refrigerators were investigated using TG-FTIR technique under N2 atmosphere. Results showed that the whole thermal process could be divided into three stages and the main pyrolysis occurred in 260-600°C. The distribution activation energy model (DAEM) was applied to analyze the pyrolysis kinetics. The estimated activation energies ranged from 122.8 to 188 kJ/mol and the pre-exponential factors k0 varied from 108 to 1013 s-1. The composition of evolved gas included CFC-11, CO2, CH4, CO, NH3, HCN and some organic compounds, the evolution characteristics of main gas products had also been discussed.

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Periodical:

Advanced Materials Research (Volumes 356-360)

Pages:

1752-1758

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.356-360.1752

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Online since:

October 2011

Authors:

Min Xu, Jie Guan, Jing Wei Wang

Keywords:

Kinetic, Polyurethane Insulation Materials, Pyrolysis, TG-FTIR

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© 2012 Trans Tech Publications Ltd. All Rights Reserved

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