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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.:

US 10266610 B1

PDFFull Text
Date of Patent:
Apr. 23, 2019

Filed:

Oct. 19, 2015

Method of processing and fractionating biomass and use of fractions thus obtained

Applicant:

Teknologian Tutkimuskeskus Vtt Oy, Espoo, FI;

Inventors:

Antero Varhimo, Espoo, FI;

Matti Siika-Aho, Espoo, FI;

Jari Sirviö, Espoo, FI;

Sari Liukkonen, Espoo, FI;

Marjo Määttänen, Espoo, FI;

Assignee:

TEKNOLOGIAN TUTKIMUSKESKUS VTT OY, Espoo, FI;

Attorney:

McCormick, Paulding & Huber LLP

Primary Examiner:

Mark Halpern

Int. Cl.
CPC ...
D21C 3/02 (2006.01); C08B 37/00 (2006.01); D21C 1/02 (2006.01); D21C 5/00 (2006.01); D21C 9/147 (2006.01); D21C 9/16 (2006.01); D21C 11/00 (2006.01); C08H 7/00 (2011.01); C08H 8/00 (2010.01); C08B 37/14 (2006.01); C08B 1/00 (2006.01); D21C 9/00 (2006.01);
U.S. Cl.
CPC ...
C08B 37/0057 (2013.01); C08B 37/14 (2013.01); C08H 6/00 (2013.01); C08H 8/00 (2013.01); D21C 1/02 (2013.01); D21C 3/02 (2013.01); D21C 5/00 (2013.01); D21C 9/147 (2013.01); D21C 9/163 (2013.01); D21C 11/0007 (2013.01); C08B 1/00 (2013.01); D21C 9/00 (2013.01);
Abstract

The present invention relates to a method of treating biomass, comprising providing a lignocellulosic biomass feedstock; contacting the biomass feedstock in a mixture, which is formed by the biomass, water and an alkaline agent, with an oxidizing agent at an elevated temperature; and continuing the contacting of the biomass feedstock with the oxidizing agent until a notable part of the lignin is solubilized. The step of providing the biomass feedstock comprises contacting a biomass raw-material containing cellulose, hemicellulose and lignin in an aqueous phase with an alkaline agent; continuing the contacting of the biomass with the alkaline agent until a significant portion of the hemicellulose is dissolved in the aqueous phase to provide a modified biomass; recovering the modified biomass; optionally opening the structure of the modified biomass by mechanical treatment; and using the modified biomass as a lignocellulosic biomass feedstock. Treating the biomass provides hemicellulose, lignin and cellulose fractions that have a multitude of applications in the bioeconomy.

Find Patent Forward Citations

Varhimo, Antero. (2019). Method of processing and fractionating biomass and use of fractions thus obtained (U.S. Patent No. 10266610). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/10266610

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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