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SE2330581A1 - Modified lignin and method for lignin modification - Google Patents

Modified lignin and method for lignin modification

Info

Publication number
SE2330581A1
SE2330581A1 SE2330581A SE2330581A SE2330581A1 SE 2330581 A1 SE2330581 A1 SE 2330581A1 SE 2330581 A SE2330581 A SE 2330581A SE 2330581 A SE2330581 A SE 2330581A SE 2330581 A1 SE2330581 A1 SE 2330581A1
Authority
SE
Sweden
Prior art keywords
lignin
aqueous solution
acidic aqueous
modified
tendency
Prior art date
Application number
SE2330581A
Inventor
Abhishek Shetty
Anders Uhlin
Anna Jensen
Lasse Tolonen
Rickard Wadsborn
Original Assignee
Stora Enso Oyj
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Stora Enso Oyj filed Critical Stora Enso Oyj
Priority to SE2330581A priority Critical patent/SE2330581A1/en
Priority to PCT/IB2024/062804 priority patent/WO2025133935A1/en
Publication of SE2330581A1 publication Critical patent/SE2330581A1/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07G—COMPOUNDS OF UNKNOWN CONSTITUTION
    • C07G1/00—Lignin; Lignin derivatives
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08H—DERIVATIVES OF NATURAL MACROMOLECULAR COMPOUNDS
    • C08H6/00—Macromolecular compounds derived from lignin, e.g. tannins, humic acids
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B32/00—Carbon; Compounds thereof
    • C01B32/05—Preparation or purification of carbon not covered by groups C01B32/15, C01B32/20, C01B32/25, C01B32/30
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L97/00—Compositions of lignin-containing materials
    • C08L97/005—Lignin
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G OR C10K; LIQUIFIED PETROLEUM GAS; USE OF ADDITIVES TO FUELS OR FIRES; FIRE-LIGHTERS
    • C10L5/00—Solid fuels
    • C10L5/40—Solid fuels essentially based on materials of non-mineral origin
    • C10L5/44—Solid fuels essentially based on materials of non-mineral origin on vegetable substances
    • C10L5/447—Carbonized vegetable substances, e.g. charcoal, or produced by hydrothermal carbonization of biomass
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C11/00—Regeneration of pulp liquors or effluent waste waters
    • D21C11/0007—Recovery of by-products, i.e. compounds other than those necessary for pulping, for multiple uses or not otherwise provided for
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C11/00—Regeneration of pulp liquors or effluent waste waters
    • D21C11/04—Regeneration of pulp liquors or effluent waste waters of alkali lye

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biochemistry (AREA)
  • Compounds Of Unknown Constitution (AREA)

Abstract

The present invention is directed to modified lignin having a decreased tendency to swell when heated. The invention is also directed to a method for modifying lignin to achieve the decreased swelling tendency. In the method lignin in solid form is provided and immersed in an acidic aqueous solution having a pH below 1 .5, wherein the temperature of the acidic aqueous solution during the immersion is in the range of from 80°C to 130°C, until the swelling tendency of the lignin, measured as the ratio of the volume of the lignin, in dry form, after being subjected to heating from 20°C to 250°C, at a temperature increase rate of 25°C/min, to the volume of the lignin before being subjected to the heating, is in the range of from 0.8 to 3.0, to obtain modified lignin that is separated from the acidic aqueous solution.
SE2330581A 2023-12-19 2023-12-19 Modified lignin and method for lignin modification SE2330581A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
SE2330581A SE2330581A1 (en) 2023-12-19 2023-12-19 Modified lignin and method for lignin modification
PCT/IB2024/062804 WO2025133935A1 (en) 2023-12-19 2024-12-18 Modified lignin and method for lignin modification

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE2330581A SE2330581A1 (en) 2023-12-19 2023-12-19 Modified lignin and method for lignin modification

Publications (1)

Publication Number Publication Date
SE2330581A1 true SE2330581A1 (en) 2025-06-20

Family

ID=96136540

Family Applications (1)

Application Number Title Priority Date Filing Date
SE2330581A SE2330581A1 (en) 2023-12-19 2023-12-19 Modified lignin and method for lignin modification

Country Status (2)

Country Link
SE (1) SE2330581A1 (en)
WO (1) WO2025133935A1 (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013083876A2 (en) * 2011-12-09 2013-06-13 Upm-Kymmene Corporation A method for making a lignin component, a lignin component and its use and a product
WO2014116150A1 (en) * 2013-01-24 2014-07-31 Valmet Power Ab Method for producing high purity lignin
WO2016001490A1 (en) * 2014-07-04 2016-01-07 Metsä Fibre Oy Method of utilizing lignin contained in black liquor
US20170101430A1 (en) * 2015-10-13 2017-04-13 Valmet Technologies Oy Method for producing solid lignin
WO2021250603A1 (en) * 2020-06-11 2021-12-16 Stora Enso Oyj Process for producing thermally stabilized lignin
SE2250425A1 (en) * 2022-04-04 2023-10-05 Stora Enso Oyj Method for producing carbon from lignin

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013083876A2 (en) * 2011-12-09 2013-06-13 Upm-Kymmene Corporation A method for making a lignin component, a lignin component and its use and a product
WO2014116150A1 (en) * 2013-01-24 2014-07-31 Valmet Power Ab Method for producing high purity lignin
WO2016001490A1 (en) * 2014-07-04 2016-01-07 Metsä Fibre Oy Method of utilizing lignin contained in black liquor
US20170101430A1 (en) * 2015-10-13 2017-04-13 Valmet Technologies Oy Method for producing solid lignin
WO2021250603A1 (en) * 2020-06-11 2021-12-16 Stora Enso Oyj Process for producing thermally stabilized lignin
SE2250425A1 (en) * 2022-04-04 2023-10-05 Stora Enso Oyj Method for producing carbon from lignin

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
ABDELAZIZ O Y, HULTEBERG C P 'Physicochemical Characterisation of Technical Lignins for Their Potential Valorisation', Waste and Biomass Valorization, 2017, Vol. 8, No. 3, pp. 859-869, ISSN 1877-2641, doi:10.1007/s12649-016-9643-9 *

Also Published As

Publication number Publication date
WO2025133935A1 (en) 2025-06-26

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