Pyrolysis of high-density polyethylene in a fluidised bed reactor. Influence of the temperature and residence time

Microwave pyrolysis of polymeric materials

“…Together with the increasing of the temperature the amount of wax decreases in advantages to liquid and gas products. At 730°C there is no further formation of wax, just liquid and gas (Mastral et al, 2002). Over 800°C the conversion of the polymer in gases is almost total: 91.2% at 850°C (Westerhout et al, 1998).…”

“…A plethora of studies over the thermal degradation of polymeric materials are carried out using conventional heating method with internal or external heating source, under inert or oxidizing atmosphere. Generally the thermal decomposition needs operating temperature above 450°C Mastral et al, 2002;Whesterhout et al, 1998).…”

Literature survey for a first choice of a fuel-oxidiser couple for hybrid propulsion based on kinetic justifications

“…At lower temperatures, the main products are solid wax (aliphatic hydrocarbons up to C30) [48] but the 14/41…”

Thermal Pyrolysis of Hospital Plastic Waste

“…Too high temperature would reduce the liquid oil yield and increased the gaseous product since the process had passed the maximum thermal degradation point. Mastral et al [12] conducted the HDPE pyrolysis in a fluidized bed reactor at 650°C and they found that the liquid oil production was around 68.5% and 31.5% gaseous product by weight. This shows that the liquid was cracked to gaseous when further heated up at a very high temperature above 550 °C.…”