Co-pyrolysis of oil palm trunk and polypropylene: Pyrolysis oil composition and formation mechanism

Pyrolysis oil can be used as a precursor to synthesize value-added biochemicals. Co-pyrolysis of two or more feedstocks generally improves the selectivity and yield target compounds. In this work, palm trunk (OPT) was subjected single-feed pyrolysis co-pyrolysis with polypropylene (PP) from 500 700 °C. The highest 26.33 wt.% obtained OPT at °C, which mainly contributed by lignin decomposition in OPT. Phenolics (51.77–57.78%) oxygenates (36.31–46.99%) were major compounds detected OPT-derived oil. addition PP enhanced formation hydrocarbons (5.19–10.22%) decreased contents phenolics (34.01–41.85%) case co-pyrolysis, intermolecular reactions between radicals led ketones alcohols, increase content. 16.17 600 °C contained phenolic compounds, oxygenated (i.e., furans), hydrocarbons. These findings highlighted potential derived (single feed) (binary for production chemicals.