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Korean Journal of Chemical Engineering

, Volume 23, Issue 5, pp 761–766 | Cite as

A kinetic analysis of the thermal-oxidative decomposition of expandable polystyrene

  • Hyun-Chul Jun
  • Sea Cheon Oh
  • Hae Pyeong Lee
  • Hee Taik Kim
Article

Abstract

The kinetics of the thermal-oxidative decomposition of expandable polystyrene (EPS) was studied by a conventional thermogravimetric technique in various concentrations of oxygen from 0 to 21%. A kinetic model that accounts for the effects of oxygen concentration was proposed to describe the thermal-oxidative decomposition of EPS. The thermogravimetric analysis curve and its derivative have been analyzed by using differential and integral methods with modification of the Friedman and Coats-Redfern methods. The activation energy, the pre-exponential factor, and the reaction order for unreacted material and oxygen concentration have been determined. When oxygen was present, the activation energy was reduced significantly.

Key words

Kinetic Analysis Thermal-Oxidative Decomposition Expandable Polystyrene 

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Copyright information

© Korean Institute of Chemical Engineering 2006

Authors and Affiliations

  • Hyun-Chul Jun
    • 1
  • Sea Cheon Oh
    • 1
    • 2
  • Hae Pyeong Lee
    • 1
    • 3
  • Hee Taik Kim
    • 1
  1. 1.Department of Chemical EngineeringHanyang UniversityKyunggi-doKorea
  2. 2.Department of Environmental EngineeringKongju National UniversityChungnamKorea
  3. 3.School of Fire and Disaster Prevention EngineeringKangwon National UniversityGangwon-doKorea

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