Experimental Analysis of the Oxidative Liquefaction of the Municipal Solid Wastes

The pursuit of sustainable waste management solutions has led to the emergence of the oxidative liquefaction of municipal solid waste (MSW) as a promising approach for waste valorization. The primary objective of this study involves the investigation of a novel oxidative approach to decompose the integrated organic matrix of MSW into liquid-phase products of potential utility. The selected MSW samples have a carbon content of 50.30±0.50 %, as revealed through ultimate and proximate analysis. Oxidative liquefaction of MSW samples is carried out using a structured design of experiments. Temperature (200-300 °C), oxidant concentration (30-60 %), waste-to-liquid ratio (3-7 %) were taken as experimental parameters. Liquid products were analyzed through gas chromatography with flame ionization detection (GC-FID), and oxygenated organic compounds (OOCs) were found to be in the range of 13-51 g/kg. Total solid reduction (TSR) was assumed as an indicator of the efficiency of the process. It was equal from 49 to 93 %. The current research article introduces the concept of oxidative liquefaction for treating MSW as a waste-to-fuel concept.