Influence of green solvent on levulinic acid production from lignocellulosic paper waste
Journal
Bioresource Technology
Journal Volume
298
Pages
122544
Date Issued
2020
Author(s)
Abstract
Lignocellulosic wastes constitute a significant portion of the municipal solid waste, which should be valorised for the synthesis of value-added chemicals to achieve circular bioeconomy. This study evaluates the use of γ-valerolactone (GVL) and acetone as green co-solvents to produce levulinic acid (LA) from lignocellulosic paper towel waste at different temperatures using dilute H2SO4. At the highest reaction temperature (200 °C), H2O-only system achieved ~15 Cmol% of LA at maximum. while GVL/H2O and acetone/H2O co-solvent systems enhanced the depolymerisation of paper towel waste and the subsequent conversion to LA, with the highest yield amounted to ~32 Cmol%. Acetone/H2O solvent system generated ~17 Cmol% LA at a lower temperature (180 °C), while higher temperature induced polymerisation of soluble sugars and intermediates, hindering further conversion to LA. In contrast, the availability of soluble sugars was higher in the GVL/H2O system, which favoured the production of LA at higher temperatures. ? 2019 Elsevier Ltd
Subjects
Acetone; Bioeconomy; Lignocellulosic biomass; Organic acids; Paper products; Solvents; Sugars; Waste management; Biorefineries; Lignocellulosic wastes; Lower temperatures; Paper wastes; Reaction temperature; Temperature-induced; Valorisation; Value-added chemicals; Municipal solid waste; acetone; levulinic acid; lignocellulose; solvent; lignin; lignocellulose; solvent; acetone; cellulose; chemical compound; chemical reaction; municipal solid waste; solid waste; solvent; temperature effect; waste management; Article; artificial ventilation; biomass conversion; carbon nuclear magnetic resonance; catalyst; comparative study; computer simulation; controlled study; energy consumption; high temperature; hydrolysis; microwave cooking; municipal solid waste; polymerization; priority journal; reaction temperature; reaction time; refraction index; surface property; temperature; Acetone; Organic Acids; Paper Products; Solvents; Sugars; Waste Management; Levulinic Acids; Lignin; Solvents; Temperature
Other Subjects
Acetone; Bioeconomy; Lignocellulosic biomass; Organic acids; Paper products; Solvents; Sugars; Waste management; Biorefineries; Lignocellulosic wastes; Lower temperatures; Paper wastes; Reaction temperature; Temperature-induced; Valorisation; Value-added chemicals; Municipal solid waste; acetone; levulinic acid; lignocellulose; solvent; lignin; lignocellulose; solvent; acetone; cellulose; chemical compound; chemical reaction; municipal solid waste; solid waste; solvent; temperature effect; waste management; Article; artificial ventilation; biomass conversion; carbon nuclear magnetic resonance; catalyst; comparative study; computer simulation; controlled study; energy consumption; high temperature; hydrolysis; microwave cooking; municipal solid waste; polymerization; priority journal; reaction temperature; reaction time; refraction index; surface property; temperature; Acetone; Organic Acids; Paper Products; Solvents; Sugars; Waste Management; Levulinic Acids; Lignin; Solvents; Temperature
Type
journal article