TY - JOUR
TI - Temperature and time influence on the waste plastics pyrolysis in the fixed bed reactor
AU - Papuga Sasa V
AU - Gvero Petar M
AU - Vukić Ljiljana M
JN - Thermal Science
PY - 2016
VL - 20
IS - 2
SP - 731
EP - 741
PT - Article
AB - Pyrolysis as a technique of chemical recycling of plastic materials is  causing an increasing level of interest as an environmentally and  economically acceptable option for the processing of waste materials. Studies  of these processes are carried out under different experimental conditions,  in different types of reactors and with different raw materials, which makes  the comparison of different processes and the direct application of process  parameters quite complex. This paper presents the results of investigation of  the influence of temperature in the range of 450°C to 525°C, on the yield of  the process of pyrolysis of waste plastics mixture, composed of 45%  polypropylene, 35% low density polyethylene and 25% high density  polyethylene. Also, this paper presents results of the investigation of the  effect of the reaction, atintervals of 30-90 [min], on the yield of pyrolysis  of the mentioned waste plastics mixture. Research was conducted in a fixed  bed pilot reactor, which was developed for this purpose. The results of the  research show that at a temperature of 500°C, complete conversion of raw  materials was achieved, for a period of 45 [min], with a maximum yield of the  pyrolysis oil of 32.80%, yield of the gaseous products of 65.75% and the  solid remains of 1.46%. Afurther increase of temperature increases the yield  of gaseous products, at the expense of reducing the yield of pyrolysis oil.  Obtained pyrolysis oil has a high calorific value of 45.96 [MJ/kg], and in  this regard has potential applications as an alternative fuel.