Pyrolysis Behavior and Kinetics of Polyurethane Insulation Materials from Waste Refrigerators
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.
Hexing Li, Qunjie Xu and Daquan Zhang
M. Xu et al., "Pyrolysis Behavior and Kinetics of Polyurethane Insulation Materials from Waste Refrigerators", Advanced Materials Research, Vols. 356-360, pp. 1752-1758, 2012