|Publisher DOI:||10.1016/j.indcrop.2017.02.010||Title:||Levulinic acid production integrated into a sugarcane bagasse based biorefinery using thermal-enzymatic pretreatment||Language:||English||Authors:||Schmidt, Lisa
Mthembu, Lethiwe D.
|Keywords:||Levulinic acid;Sugarcane bagasse;Liquid hot water treatment;Pelletizing;Methane sulfonic acid||Issue Date:||10-Feb-2017||Publisher:||Elsevier||Source:||Industrial Crops and Products (99): 172-178 (2017-05-01)||Journal or Series Name:||Industrial crops and products||Abstract (english):||Levulinic acid (LA) is a promising platform chemical that can be produced from C6-sugars of lignocellulose. However, direct conversion of lignocellulose leads to the predefined by-products furfural and a solid residue, composed of lignin and humins. Enabling independent conversion of the major biomass components would increase the flexibility in terms of the products of a biorefinery. Therefore, this work focuses on integrating LA production into a biorefinery, which fractionates the biomass with a thermal-enzymatic treatment using hot water and enzymes only. Besides a glucose solution, used for LA production, a hemicellulose rich hydrolysate and solvent free lignin were recovered. The yields for the C6-fractions after thermal and enzymatic treatment were 95.8 mol% and 62.1 mol%, respectively. The influence of temperature (160–200 °C), residence time (3–90 min) and acid concentration (0.25–1 M) on LA synthesis, following thermal-enzymatic treatment was investigated by statistical methods, achieving a maximum LA yield of 67.7 mol%.||URI:||http://hdl.handle.net/11420/3142||ISSN:||0926-6690||Institute:||Thermische Verfahrenstechnik V-8
Umwelttechnik und Energiewirtschaft V-9
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