Batch Hydrothermal liquefaction of end-of-life plastic and oil characterization

Finding a proper way to manage the enormous amount of waste plastic that is globally produced, one main environmental challenges our times. Among different types chemical recycling, Hydrothermal Liquefaction (HTL) appears as potential method for treatment mixes, sustainable production biocrude or chemicals with high added value. In this work hydrothermal liquefaction reactions were carried out on polymeric residue, obtained from an industrial collection and recycling process. The residue has heterogeneous composition consisting not only polymers but also paper metals. Two batch experiments performed in stainless-steel Parr autoclave at 340 °C, investigating residence times 5 hours use alkaline catalyst (NaOH). oils reactions, well aqueous phases, have been analysed by analytical techniques such as: FT-IR spectroscopy, GC-MS, GC-FID, IC. operating conditions used work, allowed degradation cellulose reactive sites hydrolysis PET, nylon PVAc, while polyolefins (PE, PP) attacked. basic favoured greater rate.