Journal
WASTE MANAGEMENT
Volume 45, Issue -, Pages 126-133Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.wasman.2015.05.034
Keywords
Polystyrene; Pyrolysis; Conical spouted bed reactor; Styrene; Waste plastic; Thermogravimetry
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Funding
- Ministry of Economy and Competitiveness of the Spanish Government [CTQ2013-45105-R]
- FEDER funds
- Basque Government [GIC07/24-IT-748-13]
- University of the Basque Country [UFI 11/39]
- University of the Basque Country UPV/EHU
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Continuous pyrolysis of polystyrene has been studied in a conical spouted bed reactor with the main aim of enhancing styrene monomer recovery. Thermal degradation in a thermogravimetric analyser was conducted as a preliminary study in order to apply this information in the pyrolysis in the conical spouted bed reactor. The effects of temperature and gas flow rate in the conical spouted bed reactor on product yield and composition have been determined in the 450-600 degrees C range by using a spouting velocity from 1.25 to 3.5 times the minimum one. Styrene yield is strongly influenced by both temperature and gas flow rate, with the maximum yield being 70.6 wt% at 500 degrees C and a gas velocity twice the minimum one. (C) 2015 Elsevier Ltd. All rights reserved.
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