METHOD FOR THE DEPOLYMERIZATION OF LIGNIN

A catalytic method is disclosed for the valorization of lignin. The method comprises subjecting lignin to a catalyzed hydrothermal conversion reaction, said reaction being conducted in the presence of water at an alkaline pH>8 and a temperature of 200° C.-300° C., under the influence of a noble m...

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Bibliographic Details
Main Authors VAN DER KLIS, Frits, GOSSELINK, Richard Johannes Antonius, VAN ES, Daniël Stephan, VAN HAVEREN, Jacobus
Format Patent
LanguageEnglish
French
German
Published 17.02.2016
Subjects
ACYCLIC OR CARBOCYCLIC COMPOUNDS
CHEMISTRY
CRACKING HYDROCARBON OILS
FUELS
LUBRICANTS
METALLURGY
MINERAL WAXES
ORGANIC CHEMISTRY
PEAT
PETROLEUM, GAS OR COKE INDUSTRIES
PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVEHYDROGENATION, OLIGOMERISATION, POLYMERISATION
RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, ORGASES
REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS
REFORMING OF NAPHTHA
TECHNICAL GASES CONTAINING CARBON MONOXIDE
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Summary:A catalytic method is disclosed for the valorization of lignin. The method comprises subjecting lignin to a catalyzed hydrothermal conversion reaction, said reaction being conducted in the presence of water at an alkaline pH>8 and a temperature of 200° C.-300° C., under the influence of a noble metal catalyst comprising a carbon support. The same reaction can also be applied to subsequently defunctionalize one or more phenolic compounds, notably guaiacol, so as to produce six-membered cyclic hydrocarbons, such as phenol.
Bibliography:Application Number: EP20140717511