An Integrated Approach for Added-Value Products from Lignocellulosic Biorefineries
Vanillin, Syringaldehyde, Polyphenols and Polyurethane
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Beschreibung
This book offers the state of the art on the progress and accomplishments of 25 years of research at the Associate Laboratory LSRE-LCM - Laboratory of Separation and Reaction Engineering - Laboratory of Catalysis and Materials on lignin conversion to value-added products and their downstream separation. The first valorisation pathway presented for lignin is its partial depolymerisation by oxidation for the production of low molecular weight phenolic compounds, such as vanillin and syringaldehyde, and the second one is the lignin application as macromonomer for polyurethane synthesis.
In this book, the authors present the integration of these two valorisation pathways as an exclusive vision of LSRE-LCM resulting from hands-on experience on reaction and separation processes: the integrated process for lignin valorisation. In this perspective, the lignin is oxidized to simultaneously produce syringaldehyde and vanillin, and the obtained by-products to produce a polyol for lignin-based polyurethanes, completing the lignin value chain. On the perspective of pulp mill-related biorefineries, a valorisation route for eucalyptus bark is also presented, focusing on LSRE-LCM experience on extraction and separation of bioactive polyphenols, giving some insights about further integration of extracted bark on biorefining operations.
This book offers the state of the art on the progress and accomplishments of 25 years of research at the Associate Laboratory LSRE-LCM - Laboratory of Separation and Reaction Engineering - Laboratory of Catalysis and Materials on lignin conversion to value-added products and their downstream separation. The first valorisation pathway presented for lignin is its partial depolymerisation by oxidation for the production of low molecular weight phenolic compounds, such as vanillin and syringaldehyde, and the second one is the lignin application as macromonomer for polyurethane synthesis.
In this book, the authors present the integration of these two valorisation pathways as an exclusive vision of LSRE-LCM resulting from hands-on experience on reaction and separation processes: the integrated process for lignin valorisation. In this perspective, the lignin is oxidized to simultaneously produce syringaldehyde and vanillin, and the obtained by-products to produce a polyolfor lignin-based polyurethanes, completing the lignin value chain. On the perspective of pulp mill-related biorefineries, a valorisation route for eucalyptus bark is also presented, focusing on LSRE-LCM experience on extraction and separation of bioactive polyphenols, giving some insights about further integration of extracted bark on biorefining operations.
Provides state of the art on lignin and bark in biorefineries and pulp mills Presents an integrated approach to get valuable products (vanillin, syringaldehyde and polyurethanes) from kraft lignin Delivers data on chemical reaction engineering related with lignin oxidation Reports results on membrane processing, adsorption and ion-exchange as separation processes to recover high added-value products from lignin and bark Provides the most recent developments on synthesis, characterisation and applications of lignin-based polyurethanes
Autor*in
Alírio Egídio Rodrigues
Themen in »An Integrated Approach for Added-Value Products from Lignocellulosic Biorefineries«
Lignin conversion by oxidation Bark valorization Syringaldehyde production Vanillin production Bioactive polyphenols Polyurethanes from renewable sources Integration of biorefinery in pulp mills Structured packed bubble reactor Adsorption and ion exchange process Membrane separation Wood Science and Technology