The sustainable and renewable production of p-xylene (PX), a crucial component for polyethylene terephthalate (PET), is increasingly important as an alternative to fossil-based processes. This review examines biomass-derived routes for PX synthesis, emphasizing the use of bio-px production pathways to feasible for commercialization. While bio-PX production offers reduced greenhouse gas emissions, challenges remain in cost, catalyst stability, and energy requirements. Recent innovations in catalyst regeneration and hierarchical structures enhance stability and minimize coke formation. Life-cycle assessments confirm bio-PX’s environmental advantages, suggesting that further research into biomass sources and catalyst efficiency will advance bio-based PX production toward commercial viability in a sustainable bioeconomy.
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