title: Styrene recovery from polystyrene by flash pyrolysis in a conical spouted bed reactor.
abstract: 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°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°C and a gas velocity twice the minimum one.
authors.affiliation: Department of Chemical Engineering, University of the Basque Country UPV/EHU, P.O. Box 644, E48080 Bilbao, Spain.
authors.forename: Maite
authors.initials: M
authors.lastname: Artetxe
authors.affiliation: Department of Chemical Engineering, University of the Basque Country UPV/EHU, P.O. Box 644, E48080 Bilbao, Spain.
authors.forename: Gartzen
authors.initials: G
authors.lastname: Lopez
authors.affiliation: Department of Chemical Engineering, University of the Basque Country UPV/EHU, P.O. Box 644, E48080 Bilbao, Spain.
authors.forename: Maider
authors.initials: M
authors.lastname: Amutio
authors.affiliation: Department of Chemical Engineering, University of the Basque Country UPV/EHU, P.O. Box 644, E48080 Bilbao, Spain.
authors.forename: Itsaso
authors.initials: I
authors.lastname: Barbarias
authors.affiliation: Department of Chemical Engineering, University of the Basque Country UPV/EHU, P.O. Box 644, E48080 Bilbao, Spain.
authors.forename: Aitor
authors.initials: A
authors.lastname: Arregi
authors.affiliation: Department of Chemical Engineering, University of the Basque Country UPV/EHU, P.O. Box 644, E48080 Bilbao, Spain.
authors.forename: Roberto
authors.initials: R
authors.lastname: Aguado
authors.affiliation: Department of Chemical Engineering, University of the Basque Country UPV/EHU, P.O. Box 644, E48080 Bilbao, Spain.
authors.forename: Javier
authors.initials: J
authors.lastname: Bilbao
authors.affiliation: Department of Chemical Engineering, University of the Basque Country UPV/EHU, P.O. Box 644, E48080 Bilbao, Spain. Electronic address: martin.olazar@ehu.es.es.
authors.forename: Martin
authors.initials: M
authors.lastname: Olazar
mesh_terms: D002384:Catalysis; D006358:Hot Temperature; D011137:Polystyrenes / Q000737:chemistry*; D059027:Recycling / Q000379:methods*; D062611:Solid Waste / Q000032:analysis*; D018505:Waste Management / Q000379:methods*
chemical_list: D011137:Polystyrenes; D062611:Solid Waste
keywords: Conical spouted bed reactor; Polystyrene; Pyrolysis; Styrene; Thermogravimetry; Waste plastic