Catalytic hydrothermal upcycling of end-of-life automotive plastic waste in near-supercritical water: process optimization and product characterization

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Authors: Emmanuel Galiwango, James Butler, Weiguo Ma, Kevin Austin, Samira Lotfi
Cited by: 1
References: 78

Abstract

feed) occurred at a catalyst ratio of 5, while the best liquid yield (36%) was achieved at the lowest ratio of 1. The GC-MS analysis revealed feedstock concentration influenced reaction pathways, shifting from phenolics and amines at low solids loading to hydrocarbons and ketones at higher concentrations. These findings highlight catalytic hydrothermal conversion as a viable circular-economy route for ASR valorization, combining thermodynamic efficiency with targeted fuel and chemical production.

Fields of Study & Subjects

Subcritical and Supercritical Water Processes Thermochemical Biomass Conversion Processes Coal Combustion and Slurry Processing

Publication details

Journal / source
RSC Advances
Publisher
Royal Society of Chemistry (RSC)
Volume
16
Issue
7
Pages
6595–6611
Publication date
1 January 2026
Language
EN