Vacuum pyrolysis of waste print circuit board |
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Authors: | GAN Ge CHEN Lie-qiang PENG Shao-hong CAI Ming-zhao |
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Abstract: | Waste print circuit board containing 11.38% Br was pyrolyzed in vacuum. Thermal stability of waste print circuit board was studied under vacuum condition by thermo-gravimetry(TG). Vacuum pyrolysis of WPCB was studied emphasizing on the kinetics of WPCB pyrolysis reactions. Based on the TG results, a kinetic model was pro- posed. Kinetic parameters were calculated for reaction with this model including all stages of decomposition. The average activation energy is 68 kJ/mol with reaction order 3. These findings provide new insights into the WPCB thermal decomposition and useful data for rational design and operation of pyrolysis. |
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Keywords: | vacuum pyrolysis waste print circuit board kinetics TG |
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