Pyrolysis of plastics is an advanced thermal decomposition of waste plastic in an inert atmosphere, breaking down plastics at 400 °C – 600 °C into smaller hydrocarbons. The gas produced is condensed into pyrolysis oil, a liquid hydrocarbon mixture that can substitute virgin fossil fuels for liquid fuels and petrochemicals. Common plastics processed include polyethylene, polypropylene, PVC, polyester, and mixed plastics, making this method effective for managing diverse plastic waste.

Pyrolysis plastic recycling is an effective waste management method that reduces landfill waste and creates valuable by-products like bio-oil, syngas, and biochar. It minimizes harmful emissions compared to incineration, decreases greenhouse gas emissions by lessening fossil fuel reliance, and promotes a circular economy through material recycling.

Filtration is a crucial step in the pyrolysis of plastic waste process. It captures unwanted particles and contaminants, which can vary based on the types of plastics used and the methods applied. This enhances the quality of the pyrolysis products and protects equipment from fouling, clogging, and corrosion.  As pyrolysis oil ages, the nature of these contaminants changes, which can influence its quality and usability. Additionally, effective filtration aids in the recovery of materials, resulting in less waste and promoting a more sustainable approach to waste management.