Kinetics of the degradation of polystyrene in supercritical acetone |
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Authors: | Sea Cheon Oh Dong Ill Han Seong-Yeol Bae |
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Institution: | a Department of Environmental Engineering, Kongju National University, 275, Budae-dong, Cheonan, Chungnam 330-717, Republic of Korea b Department of Chemical Engineering, Hanyang University, Ansan, Republic of Korea c Department of Energy Conversion Technology, Korea Institute of Energy Research, Daejeon, Republic of Korea |
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Abstract: | The kinetic analysis of the degradation of polystyrene (PS) in supercritical acetone has been studied using the nonisothermal weight loss technique with heating rates of 3, 5 and 7 °C/min. The weight loss data according to degradation temperature have been analyzed using the integral method based on Arrhenius form to obtain the kinetic parameters such as apparent activation energy and overall reaction order. The kinetic parameters obtained from this work were also compared with those of the thermal degradation of PS in nitrogen atmosphere. From this work, it was found that the activation energies of PS degradation in supercritical acetone were 73.3-200.7 kJ/mol and lower than those of the thermal degradation in nitrogen atmosphere. |
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Keywords: | Kinetic analysis Supercritical acetone Degradation Polystyrene |
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