公开(公告)号：US20230257586A1

公开(公告)日：2023-08-17

申请号：US18009208

申请日：2021-06-09

Applicant: UPM-KYMMENE CORPORATION

Inventor： Juha Tamper ,  Sami Turunen ,  Vilho Nissinen ,  Nina Heiming ,  Lisa Weigand ,  Mauno Miettinen ,  Moritz Leschinsky

IPC: C08L97/00 ,  C12P19/14 ,  C08H8/00

CPC classification number: C08L97/005 ,  C08H8/00 ,  C12P19/14 ,  C12P2201/00

Abstract: A wood-derived lignin composition is disclosed. The wood-derived lignin composition comprises: - acid-insoluble lignin in an amount of 80 - 90 weight-% based on the total dry matter content of the lignin composition, wherein the average molecular weight of the lignin is 5000 - 15000 Da; -carbohydrates in an amount of 1.5 - 15 weight-% based on the total dry matter content of the lignin composition; - nitrogen in an amount of 0.2 - 1.5 weight-% based on the total dry matter content of the lignin composition; and wherein weight ratio of oxygen to carbon is at least 0.5 Further is disclosed a method for producing the wood-derived lignin composition.

公开(公告)号：US20230063154A1

公开(公告)日：2023-03-02

申请号：US17792987

申请日：2021-01-08

Applicant: UPM-Kymmene Corporation

Inventor： Juha Tamper ,  Sami Turunen ,  Vilho Nissinen ,  Mika Laitila ,  Jere Salminen ,  Meri Ventola ,  Nina Heiming ,  Lisa Weigand

IPC: C12P7/10 ,  C12N9/24

Abstract: A method for producing mono-ethylene glycol (MEG) from a wood-based raw material, and wherein method includes: i) providing a wood-based feedstock originating from the wood-based raw material and including wood chips, wherein at most 5 weight-% of the wood chips in the wood-based feedstock are overthick wood chips as specified by SCAN-CM 40:01, and subjecting the wood-based feedstock to at least one pretreatment to form a liquid fraction and a fraction including solid cellulose particles; ii) subjecting the fraction comprising solid cellulose particles to enzymatic hydrolysis to form a lignin fraction and a carbohydrate fraction; iii) subjecting the carbohydrate fraction to catalytical conversion to form a liquid composition of glycols; and iv) recovering mono-ethylene glycol from the liquid composition of glycols. Further is disclosed a corresponding arrangement and mono-ethylene glycol obtainable by the method.