Method for obtaining a stable lignin: polar organic solvent composition via mild solvolytic modifications

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United States of America Patent

PATENT NO 12091613
APP PUB NO 20200283684A1
SERIAL NO

16648079

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Abstract

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A process the production of a crude liquid lignin oil (CLO), the process includes the steps of providing a lignin-rich solid feedstock and subjecting the lignin-rich solid feedstock to a treatment in a polar organic solvent in the absence of an effective amount of added reaction promoter, such as a heterogeneous and/or homogeneous catalyst and/or hydrogen, and providing a lignin composition, the treatment includes a step of contacting the lignin-rich solid feedstock with a polar organic solvent under operating conditions of an operating temperature up to 210° C., an operating pressure lower than 50 bar and a residence time up to 240 minutes, wherein the ratio (w/v) of lignin (in lignin-rich feedstock) to polar organic solvent ranges between 1:1.5 and 1:15, or between 1:2 and 1:10 or between 1:2 and 1:5.

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Patent Owner(s)

Patent OwnerAddress
VERTORO B VURMONDERBAAN 22 GELEEN 6167 RD

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Boot, Michael Dirk Eindhoven, NL 10 8
Hensen, Emiel Jan Maria Eindhoven, NL 4 3
Kouris, Panagiotis Eindhoven, NL 5 3
Oevering, Hendrik Eindhoven, NL 10 11

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