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Title: Compositions and methods for the dissolution and depolymerization of lignin

Abstract

The present invention provides for a method for dissolving and/or depolymerizing lignin comprising: (a) providing a composition comprising lignin, (b) contacting the composition with a strong hydrogen donor, such as a polyol, to form a first solution, (c) incubating the first solution at a temperature equal to or less than 100° C., whereby at least 20% by weight of the lignin is dissolved, (d) optionally introducing an oxidation agent to the first solution to form a second solution, wherein the temperature of the second solution is equal to or less than 100° C., whereby lignin is depolymerized, and (e) optionally introducing an anti-solvent to the second solution to precipitate the depolymerized lignin.

Inventors:
; ; ; ;
Issue Date:
Research Org.:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1734997
Patent Number(s):
10703770
Application Number:
15/615,777
Assignee:
National Technology & Engineering Solutions of Sandia, LLC (Albuquerque, NM)
Patent Classifications (CPCs):
C - CHEMISTRY C07 - ORGANIC CHEMISTRY C07G - COMPOUNDS OF UNKNOWN CONSTITUTION
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
DOE Contract Number:  
AC02-05CH11231
Resource Type:
Patent
Resource Relation:
Patent File Date: 06/06/2017
Country of Publication:
United States
Language:
English

Citation Formats

Sun, Jian, Dutta, Tanmoy, Ramakrishnan, Parthasarathi, Simmons, Blake A., and Singh, Seema. Compositions and methods for the dissolution and depolymerization of lignin. United States: N. p., 2020. Web.
Sun, Jian, Dutta, Tanmoy, Ramakrishnan, Parthasarathi, Simmons, Blake A., & Singh, Seema. Compositions and methods for the dissolution and depolymerization of lignin. United States.
Sun, Jian, Dutta, Tanmoy, Ramakrishnan, Parthasarathi, Simmons, Blake A., and Singh, Seema. Tue . "Compositions and methods for the dissolution and depolymerization of lignin". United States. https://www.osti.gov/servlets/purl/1734997.
@article{osti_1734997,
title = {Compositions and methods for the dissolution and depolymerization of lignin},
author = {Sun, Jian and Dutta, Tanmoy and Ramakrishnan, Parthasarathi and Simmons, Blake A. and Singh, Seema},
abstractNote = {The present invention provides for a method for dissolving and/or depolymerizing lignin comprising: (a) providing a composition comprising lignin, (b) contacting the composition with a strong hydrogen donor, such as a polyol, to form a first solution, (c) incubating the first solution at a temperature equal to or less than 100° C., whereby at least 20% by weight of the lignin is dissolved, (d) optionally introducing an oxidation agent to the first solution to form a second solution, wherein the temperature of the second solution is equal to or less than 100° C., whereby lignin is depolymerized, and (e) optionally introducing an anti-solvent to the second solution to precipitate the depolymerized lignin.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2020},
month = {7}
}

Works referenced in this record: