EP2876202A1 - Utilisation de solvants eutectiques profonds dans la production de papier - Google Patents

Utilisation de solvants eutectiques profonds dans la production de papier Download PDF

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Publication number
EP2876202A1
EP2876202A1 EP13194321.9A EP13194321A EP2876202A1 EP 2876202 A1 EP2876202 A1 EP 2876202A1 EP 13194321 A EP13194321 A EP 13194321A EP 2876202 A1 EP2876202 A1 EP 2876202A1
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Prior art keywords
deep eutectic
process according
cellulose
eutectic solvent
paper
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EP13194321.9A
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German (de)
English (en)
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CEPI aisbl
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Classifications

    • 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
    • D21C3/00—Pulping cellulose-containing materials
    • D21C3/20—Pulping cellulose-containing materials with organic solvents or in solvent environment

Definitions

  • the present invention relates to the use of deep eutectic solvents in the production of pulp and/or paper and the treatment of pulp and paper waste and residues.
  • DES solvents are an adaption of a natural phenomenon known from plant metabolism. Science has found plants can build cell walls even under water stress (i.e. during periods of drought or frost). With the help of the organics present in their cells, plants produce so-called deep eutectic solvents. These represent a completely new generation of natural solvents that can dissolve components under mild conditions. DES technology is available at labscale[1].
  • DES enables the biobased economy to become reality.
  • This application may allow an economical operation of production facilities as small as 50 ktpa, perfectly meeting the increasing demand for production units based on local or regional resources and serving local and regional markets - drastically reducing transport emissions and costs.
  • DES also called Low Transition Temperature Mixtures or LTTM
  • LTTM Low Transition Temperature Mixtures
  • DES are designer solvents, typically consisting of mixtures of at least two substances (at least 1 hydrogen donor and at least 1 hydrogen acceptor) that melt at a lower temperature than either of the individual components. This property is a consequence of hydrogen interaction between the components.
  • DES are nonvolatile, biodegradable and do not react with water.
  • DES are composed of non-toxic and relatively inexpensive substances including amides, sugars, and alcohols.
  • the present invention provides in a first aspect a process for producing pulp and/or paper comprising using deep eutectic solvents.
  • a process for producing pulp and/or paper comprising a dissolving step to dissolve lignin from a lignocellulosic material by using deep eutectic solvents.
  • a process for processing recycled fibres comprising a contacting step of contacting recycled fibres with deep eutectic solvents.
  • a process for producing paper comprising a dissolving step to dissolve cellulose from a cellulosic material by using deep eutectic solvents and optionally a precipitating step of precipitating the cellulose obtained in the dissolving step in sheet format.
  • a process for recovering cellulose from cellulosic waste material comprising a dissolving step to dissolve cellulose from the waste material by using deep eutectic solvents.
  • cellulose is a complex carbohydrate, (C 6 H 10 O 5 ) n , that is composed of glucose units, forms the main constituent of the cell wall in most plants, and is important in the manufacture of numerous products, such as paper, textiles, pharmaceuticals, and explosives. It is crystalline, strong, and resistant to hydrolysis.
  • DES refers to deep eutectic solvent.
  • a deep eutectic solvent is a type of ionic liquid (a salt in the liquid state) with special properties composed of a mixture which forms a eutectic with a melting point much lower than either of the individual components. While ordinary liquids such as water and gasoline are predominantly made of electrically neutral molecules, ionic liquids are largely made of ions and short-lived ion pairs.
  • Furfural is an organic compound derived from a variety of agricultural by-products, including corncobs, oat, wheat bran, and sawdust. Furfural is a heterocyclic aldehyde (OC 4 H 3 CHO).
  • hemicellulose is any of several polysaccharides that are more complex than a sugar and less complex than cellulose, present along with cellulose in almost all plant cell walls. While cellulose is crystalline, strong, and resistant to hydrolysis, hemicellulose has a random, amorphous structure with little strength. It is easily hydrolyzed by dilute acid or base as well as myriad hemicellulose.
  • ktpa refers to kiloton per annum.
  • Ligand is a complex chemical compound most commonly derived from lignocellulosic biomass, and an integral part of the secondary cell walls of plants.
  • “Lignocellulose” refers to plant dry matter (biomass), so called lignocellulosic biomass. It is composed of carbohydrate polymers (cellulose, hemicellulose), and an aromatic polymer (lignin).
  • Paper refers to a thin material currently produced by pressing together moist fibers, typically cellulose pulp derived from wood, rags or grasses, and drying them into sheets.
  • moist fibers typically cellulose pulp derived from wood, rags or grasses
  • PRODCOM 48 PRODCOM 48.
  • Pulps is a processing of wood, wood chips or other lignocellulosic materials (containing agricultural or agro-industrial side streams) and the like to isolate individual fibres. Pulps produced thereby can often be further subjected to bleaching and purification operations in a bleach plant, including further delignification of the pulp.
  • a definition may be found in NACE, chapter 17 (Manufacture of paper and paper products, Statistical classification of economic activities in the European Community, chapter 17.1 Manufacture of pulp) and PRODCOM 47.
  • lignocellulosic material is any material that comprises, consists of, includes, contains or encompasses lignocellulose.
  • a "cellulosic material” is any material that comprises, consists of, includes, contains or encompasses cellulose.
  • the invention provides in a first aspect a process for producing pulp and/or paper comprising using a deep eutectic solvent.
  • the invention provides in a second aspect a process for producing pulp and/or paper comprising a dissolving step to dissolve lignin from a lignocellulosic material by using a deep eutectic solvent. Therewith, a lignin containing deep eutectic solvent and a remaining material is obtained.
  • the lignocellulosic material is selected from wood, woodchips, fibre crops, paper, board, waste paper or any combination thereof.
  • the dissolving step is typically carried out at a temperature between 40 to 120°C, preferably 40 to 100°C and more preferably between 60 to 80°C.
  • the dissolving step is typically carried out for 10 to 120 min, preferably 20 to 60 min and more preferably for 30 to 40 min.
  • the process may further comprise a separating step of separating the lignin containing deep eutectic solvent after the dissolving step from the remaining material, which typically contains or consists of cellulose.
  • the process may further comprise a washing step of washing the remaining material with a washing solvent, wherein the washing solvent preferably comprises or is preferably water, after the separating step.
  • the washing solvent preferably comprises or is preferably water
  • the deep eutectic solvent is removed from the remaining material, which typically comprises or consists of cellulose.
  • the process may further comprise a precipitating step of precipitating the lignin from the lignin containing deep eutectic solvent after the separating step by a solvent; preferably using water, preferably using the water that has been used as a washing solvent in the washing step and is obtained after said washing step.
  • a solvent preferably using water, preferably using the water that has been used as a washing solvent in the washing step and is obtained after said washing step.
  • the ratio of deep eutectic solvent to water is between 3:1 to 1: 3, more preferably 2:1 to 1: 2, and most preferably 1:1.
  • the separating step may be done in parallel, before or after the washing step.
  • the process may further comprise a removing step of removing the lignin from the remaining washing solvent/deep eutectic solvent mixture after the precipitating step, preferably by a solid/liquid separation. Typically, 98% of the lignin is recovered.
  • the remaining washing solvent/deep eutectic solvent mixture may contain hemicellulose. Therefore, the process may further comprise a converting step of converting the hemicellulose into other chemicals, preferably furfural.
  • the process may further comprise a recovering step of recovering the used deep eutectic solvent, preferably after the converting step of converting the hemicellulose into other chemicals and optionally removing of said other chemicals.
  • the deep eutectic solvent is recovered by nano-filtration.
  • this process may allow recovering lignin, cellulose and hemicellulose at low temperature and atmospheric pressure, from any lignocellulosic resource. It has shown to be possible with wood as well as with straw (where silica is removed with the DES). By adjusting DES properties and the process lay-out, tailor-made fibre qualities can be obtained (e.g. with different lignin-content).
  • a process for processing recycled fibres comprising a contacting step of contacting recycled fibres with a deep eutectic solvent.
  • a deep eutectic solvent is used that selectively, or almost selectively, dissolves ink-components and preferably other contaminants from recycled fibres or paper, yielding clean cellulose fibres without fibre losses.
  • a process for producing paper comprising a dissolving step to dissolve cellulose from a cellulosic material by using a deep eutectic solvent and optionally a precipitating step of precipitating the cellulose obtained in the dissolving step in sheet format.
  • This process may have the advantage that water may be eliminated from the papermaking process.
  • a process for recovering cellulose from cellulosic waste material comprising a dissolving step to dissolve cellulose from the cellulosic waste material by using a deep eutectic solvent.
  • the cellulose waste material is preferably selected from papermaking residues, and is in particular selected from papermaking rejects or papermaking sludges.
  • the dissolving step is typically carried out at a temperature of 40 to 120°C, preferably 40 to 100°C and more preferably 60 to 80°C.
  • Cellulose solubility in a DES should allow recovering pure cellulose from papermaking residues (rejects, sludges) in the form of clean dissolved pulp or as a basic building block for biochemicals, materials or fuels. This could very well be applied in the treatment of tissue waste after use, closing the loop in this value chain as well.

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EP13194321.9A 2013-11-25 2013-11-25 Utilisation de solvants eutectiques profonds dans la production de papier Ceased EP2876202A1 (fr)

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EP13194321.9A EP2876202A1 (fr) 2013-11-25 2013-11-25 Utilisation de solvants eutectiques profonds dans la production de papier

Applications Claiming Priority (1)

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EP13194321.9A EP2876202A1 (fr) 2013-11-25 2013-11-25 Utilisation de solvants eutectiques profonds dans la production de papier

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Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017032926A3 (fr) * 2015-08-27 2017-04-13 Teknologian Tutkimuskeskus Vtt Oy Procédé de conversion de biomasse
CN107200851A (zh) * 2017-07-17 2017-09-26 陕西科技大学 一种低共熔溶剂制备纳米木质素的方法
DE102016205954A1 (de) * 2016-04-28 2017-11-02 Duale Hochschule Baden-Württemberg -Körperschaft Des Öffentlichen Rechts- Verfahren und Anlage zum Herstellen eines flächigen imprägnierten Faserstoffproduktes
CN108797115A (zh) * 2018-06-21 2018-11-13 东华大学 一种基于低共熔溶剂的织物多功能耐久后整理方法
WO2020229732A1 (fr) * 2019-05-15 2020-11-19 Lappeenrannan-Lahden Teknillinen Yliopisto Lut Procédé de fractionnement d'une matière lignocellulosique et produits obtenus selon ledit procédé
WO2020234761A1 (fr) * 2019-05-23 2020-11-26 Politecnico Di Milano Procédé de traitement de biomasse
WO2022013482A1 (fr) * 2020-07-17 2022-01-20 Lappeenrannan-Lahden Teknillinen Yliopisto Procédé de séparation d'au moins une fraction de polymère à partir d'un matériau comprenant des textiles, ainsi que des fractions de polymère spécifiques et leurs utilisations
CN114086414A (zh) * 2021-10-26 2022-02-25 华南理工大学 一种基于酸性低共熔溶剂的木质纤维素制浆方法
CN114855487A (zh) * 2022-06-08 2022-08-05 陕西科技大学 一种采用酸性低共熔溶剂提升溶解浆反应性能的方法
WO2022170373A1 (fr) 2021-02-12 2022-08-18 Mondi Ag Procédé de pulpage mécanique assisté chimiquement de copeaux de bois ou de chutes de bois
CN116023819A (zh) * 2022-11-21 2023-04-28 青岛科技大学 一种具有天然花香的3d打印墨水及其制备方法与应用

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8022014B2 (en) 2008-03-26 2011-09-20 Shrieve Chemical Products, Inc. Deep eutectic solvents and applications
WO2013153203A1 (fr) * 2012-04-12 2013-10-17 Technische Universiteit Eindhoven Prétraitement de biomasse lignocellulosique et récupération de substituants au moyen de mélanges naturels de solvants eutectiques profonds (des)/composés présentant des températures de transition basses

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8022014B2 (en) 2008-03-26 2011-09-20 Shrieve Chemical Products, Inc. Deep eutectic solvents and applications
WO2013153203A1 (fr) * 2012-04-12 2013-10-17 Technische Universiteit Eindhoven Prétraitement de biomasse lignocellulosique et récupération de substituants au moyen de mélanges naturels de solvants eutectiques profonds (des)/composés présentant des températures de transition basses

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
"Tracking industrial energy efficiency and C02 emissions", IEA, IN SUPPORT OF THE G8 ACTION PLAN, 2007
J. MICHELS, DIE LIGNOCELLULOSE BIORAFFINERIE - VON DER IDEE ZUR REALISIERUNG, 25 January 2013 (2013-01-25)
M. FRANCISCO; A. VAN DEN BRUINHORST; MAAIKE C. KROON: "Low-Transition-Temperature Mixtures (LTTMs): A new generation of designer solvents", ANGEW. CHEM. INT. ED, vol. 52, 2013, pages 3074 - 3085
M. FRANCISCO; A. VAN DEN BRUINHORST; MAAIKE C. KROON: "New natural and renewable low transition temperature mixtures (LTTMs): screening as solvents for lignocellulosic biomass processing", GREEN CHEM., vol. 14, 2012, pages 2153 - 2157

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017032926A3 (fr) * 2015-08-27 2017-04-13 Teknologian Tutkimuskeskus Vtt Oy Procédé de conversion de biomasse
DE102016205954A1 (de) * 2016-04-28 2017-11-02 Duale Hochschule Baden-Württemberg -Körperschaft Des Öffentlichen Rechts- Verfahren und Anlage zum Herstellen eines flächigen imprägnierten Faserstoffproduktes
CN107200851A (zh) * 2017-07-17 2017-09-26 陕西科技大学 一种低共熔溶剂制备纳米木质素的方法
CN108797115A (zh) * 2018-06-21 2018-11-13 东华大学 一种基于低共熔溶剂的织物多功能耐久后整理方法
CN108797115B (zh) * 2018-06-21 2020-08-04 东华大学 一种基于低共熔溶剂的织物多功能耐久后整理方法
WO2020229732A1 (fr) * 2019-05-15 2020-11-19 Lappeenrannan-Lahden Teknillinen Yliopisto Lut Procédé de fractionnement d'une matière lignocellulosique et produits obtenus selon ledit procédé
WO2020234761A1 (fr) * 2019-05-23 2020-11-26 Politecnico Di Milano Procédé de traitement de biomasse
US20220213276A1 (en) * 2019-05-23 2022-07-07 Politecnico Di Milano Processes for biomass treatments
WO2022013482A1 (fr) * 2020-07-17 2022-01-20 Lappeenrannan-Lahden Teknillinen Yliopisto Procédé de séparation d'au moins une fraction de polymère à partir d'un matériau comprenant des textiles, ainsi que des fractions de polymère spécifiques et leurs utilisations
WO2022170373A1 (fr) 2021-02-12 2022-08-18 Mondi Ag Procédé de pulpage mécanique assisté chimiquement de copeaux de bois ou de chutes de bois
CN114086414A (zh) * 2021-10-26 2022-02-25 华南理工大学 一种基于酸性低共熔溶剂的木质纤维素制浆方法
CN114855487A (zh) * 2022-06-08 2022-08-05 陕西科技大学 一种采用酸性低共熔溶剂提升溶解浆反应性能的方法
CN116023819A (zh) * 2022-11-21 2023-04-28 青岛科技大学 一种具有天然花香的3d打印墨水及其制备方法与应用

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