The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 21, 2024
Filed:
Dec. 19, 2022
Upm-kymmene Corporation, Helsinki, FI;
Andrea Gutierrez, Helsinki, FI;
Roel Westerhof, Enschede, NL;
Sascha Kersten, Enschede, NL;
Bert Heesink, Enschede, NL;
Pekka Jokela, Helsinki, FI;
UPM-KYMMENE CORPORATION, Helsinki, FI;
Abstract
The present disclosure relates to the thermal liquefaction of lignin, and more particularly to lignin solvolysis of a lignin feedstock chosen based on its molecular weight. The process comprises subjecting a feed mixture () of lignin feedstock () and solvent () to a thermal liquefaction step by heating () the feed mixture () at a temperature between 360 and 420° C., separating () a liquid product mix () from a product mix (); and recirculating at least part of said liquid product mix () as an oil fraction of said solvent ().