title: Pyrolysis of virgin and waste polypropylene and its mixtures with waste polyethylene and polystyrene.
abstract: A comparison of waste and virgin polypropylene (PP) plastics under slow pyrolysis conditions is presented. Moreover, mixtures of waste PP with wastes of polyethylene (PE) and polystyrene (PS) were pyrolyzed under the same operating conditions. Not only the impact of waste on degradation products but also impacts of the variations in the mixing ratio were investigated. The thermogravimetric weight loss curves and their derivatives of virgin and waste PP showed differences due to the impurities which are dirt and food residues. The liquid yield distribution concerning the aliphatic, mono-aromatic and poly-aromatic compounds varies as the ratio of PP waste increases in the waste plastic mixtures. In addition to this, the alkene/alkane ratio of gas products shows variations depending on the mixing ratio of wastes.
authors.affiliation: Bogazici University, Institute of Environmental Sciences, Bebek, 80815 Istanbul, Turkey. cilizn@boun.edu.tr
authors.forename: Nilgun
authors.initials: N
authors.lastname: Kiran Ciliz
authors.forename: Ekrem
authors.initials: E
authors.lastname: Ekinci
authors.forename: Colin E
authors.initials: CE
authors.lastname: Snape
mesh_terms: D004787:Environmental Pollution / Q000517:prevention & control; D017745:Incineration; D008422:Materials Testing; D020959:Polyethylene / Q000737:chemistry*; D011126:Polypropylenes / Q000737:chemistry*; D011137:Polystyrenes / Q000737:chemistry*; D012037:Refuse Disposal / Q000379:methods*; D013696:Temperature
chemical_list: D011126:Polypropylenes; D011137:Polystyrenes; D020959:Polyethylene