Separation of lignin from organosolv liquors

The invention relates to an improved process for separating lignin and monomeric sugars from a solution comprising lignin and monomeric sugars in a solvent mixture of water and at least one organic solvent, which employs membrane filtration techniques such as nanofiltration and selective water remov...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	WOUTER JOHANNES JOSEPH HUIJGEN, MARC MATHEUS ANTONIUS VAN TUEL, HENK MARTIN VAN VEEN
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS COMPOUNDS OF UNKNOWN CONSTITUTION DERIVATIVES OF NATURAL MACROMOLECULAR COMPOUNDS METALLURGY ORGANIC CHEMISTRY ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-UP
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Beschreibung
Zusammenfassung:	The invention relates to an improved process for separating lignin and monomeric sugars from a solution comprising lignin and monomeric sugars in a solvent mixture of water and at least one organic solvent, which employs membrane filtration techniques such as nanofiltration and selective water removal, preferably by permeation through a membrane which is selective for water molecules. The invention further relates to a modular system for executing the process according to the invention. The process and system according to the invention are particularly suitable to be incorporated with biomass fractionation by organosolv.