화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Korean Journal of Chemical Engineering, Vol.30, No.3, 626-633, March, 2013
DOI10.1007/s11814-012-0157-2  Export Citation
Thermal degradation and kinetic study for different waste/ rejected plastic materials
Srujal Rana, Jigisha Kamal Parikh1, †, and Pravakar Mohanty2
  • Department of Chemical Engineering, Sarvajanik College of Engineering and Technology, Surat, Gujarat, India
  • 1Department of Chemical Engineering, Sardar Vallabhbhai National Institute of Technology, Surat-395007, Gujarat, India
  • 2Department of Chemical Engineering, Indian Institute of Technology, Delhi 110016, India
E-mail:
A kinetic analysis based on thermal decomposition of rejected polypropylene, plastic film and plastic pellets collected from different industrial outlet has been carried out. Non-isothermal experiments using different heating rates of 5, 10, 20, 30, 40 and 50℃ min.1 have been performed from ambient to 700 ℃ in a thermo-balance with the objective of determining the kinetic parameters. The values of activation energy and frequency factor were found to be in the range of 107-322 kJ/mol, 85-331 kJ/mol, 140-375 kJ/mol and 3.49E+07-4.74E+22 min^(-1), 3.52E+06-2.88E+22min^(-1), 7.28E+13-1.17E+25 min^(-1) for rejected polypropylene, plastic film and plastic pellets, respectively, by Coats-Redfern and Ozawa methods including different models. Kissinger method, a model free analysis is also adopted to find the kinetic parameters. Activation energy and frequency factor were found to be 108 kJ/mol, 98 kJ/mol, 132 kJ/mol and 6.89E+03, 2.12E+02, 8.06E+05 min^(-1) for rejected polypropylene, plastic film and plastic pellets, respectively, by using the Kissinger method.
Keywords:Thermal Pyrolysis;Plastic Waste;TGA;DTG;Kinetic Parameters
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