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Lignin-first integrated steam explosion process for green wood adhesive application

Abstract : Steam explosion (SE) is one of the most advanced pretreatment processes currently used for the production of biofuel from lignocellulose. However, steam explosion lignin is generally recovered as a secondary impure co-product, mainly used for energy production. In this work, beech wood sawdust was first exploded at 180°C or 200°C during 5 min after water or dilute acid impregnation. The recovery of lignin from exploded wood was studied using an alkali process at 80°C or an ethanol-organosolv process at 200°C. The impact of the SE parameters and of the delignification step on the lignin structure was examined by size exclusion and ionic chromatography (SEC), 31 P and HSQC NMR spectroscopies. The different lignin
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Qian He, Isabelle Ziegler-Devin, Laurent Chrusciel, Sebastien Ngwa Obame, Lu Hong, et al.. Lignin-first integrated steam explosion process for green wood adhesive application. ACS Sustainable Chemistry & Engineering, American Chemical Society, 2020, 8 (13), pp.5380-5392. ⟨10.1021/acssuschemeng.0c01065⟩. ⟨hal-02542097⟩



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