WO2023156215A1 - Procédé de blanchiment - Google Patents

Procédé de blanchiment Download PDF

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Publication number
WO2023156215A1
WO2023156215A1 PCT/EP2023/052623 EP2023052623W WO2023156215A1 WO 2023156215 A1 WO2023156215 A1 WO 2023156215A1 EP 2023052623 W EP2023052623 W EP 2023052623W WO 2023156215 A1 WO2023156215 A1 WO 2023156215A1
Authority
WO
WIPO (PCT)
Prior art keywords
pulp
xylanase enzyme
xylanase
xylan
enzyme
Prior art date
Application number
PCT/EP2023/052623
Other languages
English (en)
Inventor
Werner Besenmatter
Mauricio QUIROS
Hendrik Hellmuth
Kim Langfelder
Original Assignee
Ab Enzymes Gmbh
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 Ab Enzymes Gmbh filed Critical Ab Enzymes Gmbh
Publication of WO2023156215A1 publication Critical patent/WO2023156215A1/fr

Links

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
    • D21C5/00—Other processes for obtaining cellulose, e.g. cooking cotton linters ; Processes characterised by the choice of cellulose-containing starting materials
    • D21C5/005—Treatment of cellulose-containing material with microorganisms or enzymes
    • 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
    • D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
    • D21C9/10—Bleaching ; Apparatus therefor
    • 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
    • D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
    • D21C9/10—Bleaching ; Apparatus therefor
    • D21C9/147—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications
    • 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
    • D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
    • D21C9/10—Bleaching ; Apparatus therefor
    • D21C9/147—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications
    • D21C9/153—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications with ozone
    • 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
    • D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
    • D21C9/10—Bleaching ; Apparatus therefor
    • D21C9/16—Bleaching ; Apparatus therefor with per compounds
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/005—Microorganisms or enzymes

Abstract

Un procédé de blanchiment de pâte à papier est divulgué, comprenant l'exécution d'une délignification de la pâte à papier en réalisant dans une séquence suivante : une étape de traitement enzymatique comprenant la mise en contact de la pâte à papier avec une enzyme xylanase de la famille GH11 de glycoside hydrolase à un pH d'au moins 9,5 et une température d'au moins 85 °C, une étape d'oxydation dans laquelle un agent de blanchiment est ajouté, une étape d'extraction alcaline dans laquelle un agent alcalin est ajouté, et la récupération de pâte à papier blanchie, l'enzyme xylanase GH11 présentant une capacité à provoquer une réduction d'au moins 20 % de la viscosité d'un mélange contenant du xylane à 90 °C et un pH de 10,5, par rapport au même mélange sans aucune enzyme xylanase.
PCT/EP2023/052623 2022-02-18 2023-02-03 Procédé de blanchiment WO2023156215A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP22157484.1A EP4230791A1 (fr) 2022-02-18 2022-02-18 Processus de blanchiment
EP22157484.1 2022-02-18

Publications (1)

Publication Number Publication Date
WO2023156215A1 true WO2023156215A1 (fr) 2023-08-24

Family

ID=80775329

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2023/052623 WO2023156215A1 (fr) 2022-02-18 2023-02-03 Procédé de blanchiment

Country Status (2)

Country Link
EP (1) EP4230791A1 (fr)
WO (1) WO2023156215A1 (fr)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002057541A2 (fr) * 2001-01-18 2002-07-25 Iogen Bio-Products Corporation Procedes permettant un traitement de blanchiment a l'aide de xylanases
WO2003062409A2 (fr) * 2002-01-25 2003-07-31 Dsm Ip Assets B.V. Compositions enzymatiques thermostables
US20040112555A1 (en) * 2002-12-03 2004-06-17 Jeffrey Tolan Bleaching stage using xylanase with hydrogen peroxide, peracids, or a combination thereof
WO2007095398A2 (fr) * 2006-02-14 2007-08-23 Verenium Corporation Xylanases, acides nucléiques codant pour elles et leurs procédés de préparation et d'utilisation
WO2015018908A1 (fr) * 2013-08-09 2015-02-12 Novozymes A/S Réduction de la teneur en acides hexènuroniques contenus dans de la pâte de cellulose
WO2016135173A1 (fr) * 2015-02-25 2016-09-01 Carbios Compositions décomposant l'hémicellulose et utilisations de celles-ci
WO2021018751A1 (fr) * 2019-07-26 2021-02-04 Novozymes A/S Traitement enzymatique de la pulpe de papier

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002057541A2 (fr) * 2001-01-18 2002-07-25 Iogen Bio-Products Corporation Procedes permettant un traitement de blanchiment a l'aide de xylanases
WO2003062409A2 (fr) * 2002-01-25 2003-07-31 Dsm Ip Assets B.V. Compositions enzymatiques thermostables
US20040112555A1 (en) * 2002-12-03 2004-06-17 Jeffrey Tolan Bleaching stage using xylanase with hydrogen peroxide, peracids, or a combination thereof
WO2007095398A2 (fr) * 2006-02-14 2007-08-23 Verenium Corporation Xylanases, acides nucléiques codant pour elles et leurs procédés de préparation et d'utilisation
WO2015018908A1 (fr) * 2013-08-09 2015-02-12 Novozymes A/S Réduction de la teneur en acides hexènuroniques contenus dans de la pâte de cellulose
WO2016135173A1 (fr) * 2015-02-25 2016-09-01 Carbios Compositions décomposant l'hémicellulose et utilisations de celles-ci
WO2021018751A1 (fr) * 2019-07-26 2021-02-04 Novozymes A/S Traitement enzymatique de la pulpe de papier

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
"Sustainable Degradation of Lignocellulosic Biomass - Techniques, Applications and Commercialization", 15 May 2013, INTECH, ISBN: 978-9-53-511119-1, article F. L. ET AL: "A Review of Xylanase Production by the Fermentation of Xylan: Classification, Characterization and Applications", XP055185297, DOI: 10.5772/53544 *
BAILEY, M.JPOUTANEN, K, APPL. MICROBIOL. BIOTECHNOL, vol. 30, 1989, pages 5 - 10
KUMAR VISHAL ET AL: "Thermostable microbial xylanases for pulp and paper industries: trends, applications and further perspectives", WORLD JOURNAL OF MICROBIOLOGY AND BIOTECHNOLOGY, SPRINGER NETHERLANDS, DORDRECHT, vol. 32, no. 2, 11 January 2016 (2016-01-11), pages 1 - 10, XP035935406, ISSN: 0959-3993, [retrieved on 20160111], DOI: 10.1007/S11274-015-2005-0 *

Also Published As

Publication number Publication date
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