Mixtures of Polymer Wastes

Kinetic model Differential equations a (kJ/mol) n A (min i) Yield coefficient 

Waste commodity plastics, LDPE, HDPE, PET, PS and PVC, have high hydrogen-to-carbon ratio and molecular chain structures suitable for liquefaction. Therefore, direct liquefaction can be considered as a potential waste disposal option by generating oil [a.372]. Bockhorn and co-workers [a.403] studied complex plastic mixtures such as PVC/PS/PE, PS/PA-6/PE and PVC/PA-6/PS/PE. The researchers calculated the conversion degree of the mixtures, based on the HDPE/LDPE/PP/PS/ABS/PVC mixture. Thermal decomposition of LDPE 

Miranda and co-workers [a.385] focused on recovery of valuable products from the vacuum pyrolysis of MPW. Two stage vacuum pyrolysis performed at temperatures of 360 and 520 C enabled 99.11 wt% of the chlorine to be captured as HCl, followed by polyene decomposition into 32.39 wt% oil, 0.34 wt% gas and 8.53 wt% solid residue (yields based on the initial PVC basis). 

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